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Novatest S.r.l.

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Manual for Multichannel Ultrasonic Pile Integrity Tester

144

Appendix I Rapid Operation Instruction

for Site Test

F1.1

Cross-hole sonic logging for testing

pipe integrity

F1.1.1 Preparation before Test

F1.1.1.1 Site Preparation

1. Personnel Division

First, testing personnel shall be divided, one person for common

instruments operation and site recording and one for measurement,
transmitting and receiving transducer.

2. Site Data and Information Collection

Understand or check engineering and geological data, design

drawing of foundation pile, construction record, supervision journal
etc., understand abnormal conditions occurred in construction process
and construction progress, understand and record (recorded in

Summary of Contents for U5600

Page 1: ...Novatest S r l info novatest it www novatest it Z B L U 5 6 0 0 U 5 7 0 0 Multichannel Ultrasonic Pile Integrity Tester Instruction Manual Beijing ZBL Science Technology Co Ltd ...

Page 2: ...ication 3 1 3 MAIN TECHNICAL SPECIFICATIONS 3 1 4 PRECAUTIONS 5 1 5 DEVICE MAINTENANCE AND PRESERVATION 5 1 6 RESPONSIBILITY 7 CHAPTER 2 INSTRUMENT DESCRIPTION 9 2 1 INSTRUMENT COMPOSITION 9 2 1 1 Host 9 2 1 2 Transducer 15 2 1 3 Counting device 17 2 1 4 Accessories 21 2 2 TEST PRINCIPLE 21 2 2 1 Cross hole sonic logging for testing pipe integrity 21 2 2 2 Ultrasonic rebound combined method for te...

Page 3: ...waveform operation 37 3 4 3 Static waveform operation 38 3 4 4 Magnify and display single channel waveform40 3 5 FILE MANAGEMENT 41 3 5 1 OPERATING MODE 42 3 5 2 OPEN FILE 43 3 5 3 PROJECT AND FILE COPY 43 3 5 4 PROJECT AND FILE DELETION 43 3 5 5 PROJECT AND FILE UPLOAD 44 3 5 6 EXIT 44 3 6 ZERO SET 45 3 6 1 MANUAL ZERO SET 45 3 6 2 ACOUSTIC ZERO SET 45 3 7 RETEST 47 3 8 BATTERY LEVEL 48 3 9 SHUTD...

Page 4: ...neral parameter 68 3 2 2 2 Other parameters 72 3 3 DATA COLLECTION 77 3 3 1 Start sampling 77 3 3 2 Stop sampling 80 3 3 3 Retest 80 3 3 4 Intensive test 81 3 3 5 Continued testing 81 3 3 6 Oblique test 82 3 3 7 Test next pile 88 3 4 VIEW SWITCHOVER 89 3 4 1 Bar graph 89 3 4 2 Curve graph 91 3 4 3 Wave train graph 92 3 4 4 Data list 93 3 5 EXIT 94 CHAPTER 5 ULTRASONIC REBOUND COMBINED METHOD SOFTW...

Page 5: ...E MANAGEMENT 112 5 7 EXIT THE TEST 112 CHAPTER 6 ULTRASONIC TRANSMISSION METHOD FOR TESTING DEFECT AND CAVITY TEST SOFTWARE 113 6 1 MAIN INTERFACE 113 6 2 PARAMETER SETUP 114 6 2 1 Basic parameter 115 6 2 2 Advanced parameter 117 6 3 START TEST 121 6 3 1 Start sampling 121 6 3 2 Stop sampling 122 6 3 3 Retest 123 6 3 4 Test next object 123 6 4 ULTRASONIC DATA LIST AREA 123 6 5 DEFECTS SCHEMATIC GR...

Page 6: ... 139 7 4 TEST POINT DATA LIST AREA 139 7 5 CRACK DATA LIST AREA 141 7 6 REGRESSION CURVE AREA 142 7 7 FILE MANAGEMENT 142 7 8 EXIT TEST 143 APPENDIX I RAPID OPERATION INSTRUCTION FOR SITE TEST 144 F1 1 CROSS HOLE SONIC LOGGING FOR TESTING PIPE INTEGRITY 144 F1 1 1 Preparation before Test 144 F1 1 2 Test of New Foundation Piles 150 F1 1 3 Data Processing 155 F1 1 4 Report Preparation 157 F1 2 ULTRA...

Page 7: ...ONIC METHOD FOR TESTING UNCOMPACTED AREA AND CAVITATIONS 172 F1 3 1 Preparation before test 172 F1 3 2 Ultrasonic test 176 F1 3 3 Data processing 179 F1 3 4 Report formulation 181 F1 4 ULTRASONIC METHOD FOR TESTING CRACK DEPTH 181 F1 4 1 Preparation before test 181 F1 4 2 Ultrasonic test 184 F1 4 3 Data processing 187 F1 4 4 Report formulation 189 ...

Page 8: ...erent menu levels For example File Open means Open the command under the File menu D Words with grey background and without box represent the name of options or menus on the screen Such as Object option in selection parameter setup E Sign means special attention is needed here F Besides descriptions in the manual some prompt messages may show automatically in the use of the software Please operate...

Page 9: ...hree or four transducers in pipe may realize full combination test for three or six profiles which dramatically improves test efficiency and reduces the work intensity of on site tester 1 2 Main functions and features 1 2 1 Main functions 1 Ultrasonic transmission method for testing the integrity of foundation pile called pile test for short 2 Ultrasonic rebound combined method for testing compres...

Page 10: ...normal points in each profile is shown at any time Meanwhile wave train figure curve graph and data list of each profile may be shown 3 During the test sampling delay and amplification factor may be adjusted at any time 4 Radial transducer may be played back at any time without any operations for repeating test 5 With true color highlight LCD waveform wave speed and amplitude of multiple tested pr...

Page 11: ...t 1 2 3 Relevant test specification 1 Technical Code for Testing of Building Foundation Piles JGJ106 2 Technical Specification for Pile Testing of Highway Engineering JTG T F81 01 3 Technical Specification for Testing of Foundation Piles of Railway Engineering TB 10218 4 Guangdong Province Standard Technical Code for Testing Building Ground Foundation DBJ15 60 5 Technical Specification for Testing...

Page 12: ...μs optional multiple levels Number of waveform points 512 1024 2048 4096 optional multiple levels Transmitting voltage 65V 250V 500V 1000V optional multiple levels Testing and reading range of acoustic time 1677ms channel crosstalk 1 400 Frequency bandwidth 2 500kHz Power supply mode AC 220V 10 DC 12V Operation time 8 hours Total weight 2 5kg including built in lithium ion battery Whole volume 270...

Page 13: ...e pack the device and store it under ventilation cool and dry environment Don t expose to direct sunlight for long term If the device won t be used for a long time power on and start up the device at regular intervals to have a check 4 Avoid water ingress 5 Anti magnetism avoid using the device under intense magnetic field environment such as near large electromagnet and transformer 6 Vibration pr...

Page 14: ...ent side panel is red it means the built in battery of the instrument is charging when indictor turns into green it means the battery is fully charged The description above is the switch of indicator colors when in shutdown mode and non operating status NOTE To ensure full charging please keep continuous charging for about 8 hours and at the meantime don t charge the device under the environment o...

Page 15: ...l be cleaned properly to prevent water mud and etc from entering into the connector thus resulting in performance reduction or damage of the device NOTE Don t put the device or its accessories into water or wipe them with wet cloth Don t rinse the device or its accessories with organic solvents Please wipe the host and socket with soft clean and dry cloth Please clean socket with clean and soft br...

Page 16: ...Manual for Multichannel Ultrasonic Pile Integrity Tester 8 environment requirements 2 Abnormal operation 3 Open the enclosure and dismantle any parts and components without permission 4 The device is seriously damaged by human or fortuitous accidents ...

Page 17: ...cription 2 1 Instrument Composition U5600 U5700 multiple channel ultrasonic pile integrity tester is composed of host radial transducer counting device or depth recorder and accessories including power adaptor and U disk etc 2 1 1 Host Picture of U5700 Multichannel Ultrasonic Pile Integrity Tester appearance is shown in Figure 2 1 ...

Page 18: ...Novatest S r l info novatest it www novatest it Manual for Multichannel Ultrasonic Pile Integrity Tester 10 a Tthe obverse side ...

Page 19: ...Novatest S r l info novatest it www novatest it Manual for Multichannel Ultrasonic Pile Integrity Tester 11 b The reverse side c The left side ...

Page 20: ...CD and press screen LCD is mounted on instrument panel and clings to press screen It is used to display operation interface and test data Protective film on press screen surface may effectively protect press screen and be replaced after damage 2 1 1 2 Power switch It is used to power on off instrument long press the button of power switch for powering on instrument and long press again for powerin...

Page 21: ...ry as well 2 1 1 4 Charging indicator When charging indicator on the instrument side panel is red it means the built in battery of the instrument is charging when indictor turns into green it means the battery is fully charged Notes The description above is the switch of indicator colors when in shutdown mode and non operating status 2 1 1 5 USB port Standard USB port is provided for U disk to cop...

Page 22: ...this port and screw to tighten it 2 1 1 8 Transducer adaptor It is used for connection with plug of signal wire on transducer Adaptors of transducer on instruments in various models are different Model U5700 has four adaptors Channel 1 4 Model U5600 has only three adaptors Channel 1 3 Completely insert the projection of signal wire end into groove of this port for connection 2 1 1 9 Protective cov...

Page 23: ...strument on horizontal worktop with certain dip angle through adjusting support angle on the back for convenient operation 2 1 1 11 Nameplate It indicates company name manufacture date and factory number etc 2 1 2 Transducer 2 1 2 1 Planar Transducer Figure 2 2 Planar transducer Composite structure longitudinal vibration transducer also ...

Page 24: ...Radial transducer Radial transducer also known as tubular transducer as a kind of columnar transducer with good symmetric properties is particularly suitable for penetration test of cross hole sound wave Radius transducer is the sensor for transmitting and receiving ultrasonic as shown in Figure 2 3 All special transducers with same and interchangeable ports for multichannel pile integrity tester ...

Page 25: ...recording the depth of transducer in pipe may wirelessly communicate with host or connect with hose through signal enhancement wire Counter wheel must be paired with host in advance for wireless way in test for wired connection just connect the countering device with host through signal wire NOTE The distance between countering device and host adopting wireless communication shall be kept within 5...

Page 26: ...ounter wheel Long press button to switch on or switch off counter wheel fast flashing of operation indicator after counter wheel has been powered on refers to waiting for connection with host after successful connection with host the operation indicator turns into green and depth counting is available When built in lithium battery ...

Page 27: ...or turning into green means the battery is full NOTE Please use special charger and connection line for charging counting device may operate for over 20 hours after being fully charged Depth recorder includes counter wheel guide wheel on pipe mouth and tripod etc as shown in Table 2 1 Table 2 1 Table of counting device accessories object name Unit numb er Description Picture Count wheel Set 1 Conn...

Page 28: ... 1 Connection wire for depth recording wheel and host Be omitted Charger and connection wire Set 1 Charge built in lithium battery in counter wheel Be omitted NOTE Charging connection wire is special connection wire one end is standard USB port and another end is special port NOTE Counting device is supplied power by the instrument directly when it is connected with instrument by wire and may oper...

Page 29: ...2 2 Test principle 2 2 1 Cross hole sonic logging for testing pipe integrity The basic principle of ultrasonic transmission method for testing pile integrity is excite high frequency elastic pulse wave through ultrasonic pulse emission source use high precision receiving system to record the fluctuant features of this pulse wave transmitting in concrete when concrete has discontinuous or damaged i...

Page 30: ...ferent profiles and heights Before construction of foundation pile pipes in certain number according to the pile diameter shall be pre buried as the channel for transducer Every two pieces of pipe is a group in test ultrasonic pulse signal is transmitted from transducer in one pipe and received by transducer in another one through water coupling as shown in Figure 2 5 the instrument will record th...

Page 31: ... method adopts two or more than two test methods to test several physical quantities and establishes relationship between them and concrete strength Ultrasonic pulse speed rebound value combined method is the method with the most research and widest application at home and abroad By adopting low frequency ultrasonic tester and rebound tester with standard kinetic energy of 2 207J ultrasonic reboun...

Page 32: ...ength by utilizing established strength test curve formula 2 1 c b e cu R V a f 2 1 In which a coefficient of constant term b c regression constant fcu e equivalent value of compressive strength V calibrated ultrasonic speed in test area R calibrated average rebound value in test area 2 2 3 Ultrasonic method for testing uncompacted area and cavitation The speed of ultrasonic transmission is direct...

Page 33: ...e longer the tested acoustic time is and acoustic speed decreases correspondingly Reflection scattering and energy attenuation caused by ultrasonic on defect interface may result in decrease of amplitude the attenuation degrees are different when various frequencies in sound wave encountering defect high frequency has large attenuation which makes basic frequency decreases frequency shift Besides ...

Page 34: ...s power switch and power on instrument the company logo will display for a while after that the instrument will enter into startup interface as shown in Figure 3 1 displaying system date time remaining capacity and several function buttons button of red letters and grey background means not available Pressing different buttons to call different software refer to following chapters for more details...

Page 35: ...button turns into 3 2 Control introduction Dialogue box used in the software includes various common controls please refer to the Table 3 1 for brief introduction Table 3 1 List of controls Control name Example Description Button Button for certain action Edit box Used for inputting text number or character Pull down list box List including a series of character string several options may pop up w...

Page 36: ...ral options out of multiple ones may be selected ticking means being selected otherwise not 3 3 Soft keyboard 3 3 1 Character input When need to input character such as name of project or foundation pile etc press the edit box behind it the soft keyboard as shown in Figure 3 2 will pop up Title bar will display the name of project and maximum character number to be input and edit box will display ...

Page 37: ...Novatest S r l info novatest it www novatest it Manual for Multichannel Ultrasonic Pile Integrity Tester 29 a Input mode for English b Input mode for Chinese Figure 3 2 Character soft keyboards ...

Page 38: ...nd then character in edit box Long press of BS button for quick deletion It is equivalent to the Backspace key on physical keyboard 4 Press button to shift into capital mode and press any character back to lower case It is equivalent to the Shift key on physical keyboard long press button to lock up capital mode it is equivalent to the Caps Lock key on physical keyboard 5 Press button to shift in ...

Page 39: ...nd soft keyboard is closed if the input character is illegal or unreasonable relevant prompt will be shown on the bottom 7 After have pressed Cancel button the input is invalid and soft keyboard is closed 3 3 2 Number input Figure 3 3 Numeric soft keyboards When need to input number such as starting elevation and pile spacing press the edit box behind it soft keyboard as shown in Figure 3 3 will p...

Page 40: ...o insert a number in front of a given input number press the place in front of the number at first insert the cursor in front of it and press the number which needs to be inserted 3 Press BS button to delete the number in front of cursor long press BS button to delete all numbers 4 After have pressed OK button the input is valid and soft keyboard is closed if the input number is illegal or unreaso...

Page 41: ...3 4 Waveform display and operation a Single channel waveform in pile test b Single channel waveform in strength test defect test and crack test Figure 3 4 Schematic graph of waveform Single channel waveform range is used to display the waveform and acoustic parameters etc of current testing point as shown in ...

Page 42: ... corner displays delay time as shown in Figure 3 4b The vertical progress bar at the right of single channel waveform means the gain when gain is increasing the progress bar ascends and when gain is decreasing the bar descends 1 Acoustic time value T Transmission time of ultrasonic from transmitting transducer to receiving transducer the unit is μs this acoustic time value has deducted the system ...

Page 43: ...ampling 3 Static waveform It refers to the static waveform in single channel waveform range on screen when stop sampling 4 Head wave preliminary wave The first wave crest or trough of waveform received by instrument 5 Noise range Manual set noise range in dynamic sampling it is used to distinguish waveform from noise any waveforms with amplitude not exceeding such range is considered as noise 6 Th...

Page 44: ...n line for acoustic time It is used to indicate the mark line for ultrasonic system to automatically test and read acoustic time position of head wave 9 Automatic interpretation line for amplitude It is used to indicate the mark line for ultrasonic system to automatically test and read the amplitude position of head wave 10 Gain The magnification to received signal by the system 11 Number of delay...

Page 45: ...eform range operation panel as shown in Figure 3 5 will pop up under the waveform 1 Adjust gain Press Gain and Gain button or slide up and down on waveform range to increase or decrease gain 2 Move dynamic waveform Slide the position of central base line of single channel waveform forward and backward or press Wave and Wave buttons to move dynamic waveform left or right and consequently decrease o...

Page 46: ...width Press Threshold and Threshold buttons to increase or decrease threshold value for determining head wave 6 Close operation panel Press any areas outside of single channel waveform range to close operation panel 3 4 3 Static waveform operation In the state of static waveform press a certain waveform in single channel waveform range to use this channel as current channel one transverse cursor a...

Page 47: ...Move cursor up and down Press Up and Down buttons to move transverse amplitude cursor and display acoustic time value at cursor position in cursor parameter area 3 Move waveform left and right Press Wave and Wave buttons to move waveform left and right 4 Save the manual interpretation result After have located the transverse amplitude and vertical acoustic time cursors press Save button on operati...

Page 48: ...waveform Figure 3 7 Magnify and display single channel waveform In the state of dynamic sampling press the position of series number or profile name at the lower left corner of single channel waveform range the dialogue box as shown in Figure 3 7 will pop up to magnify and display this waveform the function of button at bottom are as same as that described in Section 3 4 2 When press other profile...

Page 49: ...g software has this function 3 5 File Management File management is used to check the tested projects and files and copy the selected projects or files to U disk or upload it to server or delete it Figure 3 8 File management interface The interface of file management is as shown in Figure 3 8 the left part of interface is project list right part is list of all files of the ...

Page 50: ...e row where the file is located in the list files to select this file 2 Press the list header for sorting different columns has different sorting method name column is sorted according to alphabetical order time column is sorted according to chronological order and file size column is sorted according to file size Pressing for several times may switch over the sorts by ascending order and descendi...

Page 51: ...and press Copy button to copy all selected files to U disk When no project or file is selected Copy button is invalid Folder with name of U5Pile will be created in U disk when copy project or file create a subfolder with the name of the project and then copy all files or selected files of this project to the subfolder Check whether U disk exists before copy file if not it will prompt user to inser...

Page 52: ... file upload Tick off a project in project list and press Upload button to upload all files in this project to test management system Tick off one or more files in file list and press Upload button to upload the selected files to test management system When no project or file is selected Upload button is invalid NOTE Developed by Beijing ZBL Science and Technology Co Ltd this test management syste...

Page 53: ...r signal wire in the first time 3 6 1 Manual zero set After have read acoustic time on waveform find out the option of Zero acoustic time in parameter interface and input the acoustic time into it manually 3 6 2 Acoustic zero set 1 Press the Zero button in parameter interface input standard acoustic time in pop up dialogue box as shown in Figure 3 9 If use standard rod for zeroset input the standa...

Page 54: ...t 3 Adjust waveform in main interface press Stop button to stop sampling after have found head wave and prompt message of new tested zero acoustic time As shown in Figure 3 10 will pop up automatically press Yes button to complete zeroset the current acoustic value is set as zero acoustic time which will be written into parameter file Press No to cancel this zeroset result ...

Page 55: ...ic time NOTE This function is only applicable to software for strength test defect test and crack test automatic zeroset is only available when just enter into test interface and no data has been collected 3 7 Retest a Start retesting b Finish retest Figure 3 11 Dialogue box of retest If need to retest the tested point select the point which needs ...

Page 56: ...ints have been retested Retest button flashing in retesting samples means retest is in progress If need to cancel retest repress Retest button when stop sampling in waveform which means static waveform prompt box as shown in Figure 3 11b will pop up press OK button to cancel retest mode NOTE This function is only applicable to software for strength test default test and crack test 3 8 Battery leve...

Page 57: ...ed 3 9 Shutdown There are three conditions in shutdown 1 Short press power switch if there is no data needs to be saved the prompt of Shut down or not will appear select Yes to shut down Select No for not 2 Short press power switch if there are some data to be saved the prompt of Shut down or not will appear select Yes to save the data and shut down Select No for not 3 Long press power switch for ...

Page 58: ...igure 3 13 3 15 and 3 16 separately The default of each parameter is the value which has been set last time After have set all parameters press OK button to validate all sets and return to startup interface press Cancel button to invalidate all sets and return to startup interface In the interface of system setup press Default button the dialogue box of whether restore factory setting or not will ...

Page 59: ... shown in Figure 3 13 for setting System date System time and Screen brightness etc Figure 3 13 General parameter 1 System Date Display system date Press the pull down button behind it to pop up dialogue box as shown in Figure 3 14 to display current date After the date has been changed the setting will become valid immediately close the dialogue box the current system date is changed ...

Page 60: ...ay system time Adjust time to select hour minute or second and press the spin button behind it The adjusted time will become valid immediately and the current system time is changed 3 Screen brightness The brightness of LCD may be adjusted within range of 10 100 the default is 100 press and buttons to increase and decrease brightness every press changes 10 ...

Page 61: ...est S r l info novatest it www novatest it Manual for Multichannel Ultrasonic Pile Integrity Tester 53 3 10 2 Instrument information a Instrument information b Edit tester Figure 3 15 Instrument information ...

Page 62: ... work license number will display automatically Work license number may be changed only after password verification is successful Press Modify Operators button to pop up dialogue box as shown in Figure 3 15 b user may delete an add tester and his her work license number After have input tester name and work license number into the edit box at the top of dialogue box press Add button to put it into...

Page 63: ...e changed by the person with administration authority all test information is not editable except for tester dialogue box requiring input password will pop up when press a certain edit box all test information can be changed only after password verification is successful 3 10 3 Internet Parameter Press Internet label to switch to the property page as shown in Figure 3 16 for setting WIFI parameter...

Page 64: ...onnected through WIFI it includes Network name Login password Encryption mode and Channel Network name is the name of WIFI LAN generated by current instrument user may find out this WIFI LAN in other terminal units with WIFI function the default is ZBL last 6 digits of the instrument wireless MAC address Login password is the password required to input when other terminal units need to log in the ...

Page 65: ...ignal transmission is weak the default is 1 2 File transmission setup Uploading Management System is used to control instrument to automatically upload new collected data to remote management system This function is valid only when used with the matching management system from our company In order to make sure that test data could be transmitted to correct server through Internet must input correc...

Page 66: ...computer copy the extracted update files to root directory in U disk take out U disk after copy is completed 3 Insert U disk into USB port of the instrument 4 Power on instrument press Software Update button in startup interface to close current software and Start update program press Update button to copy the update files in U disk to corresponding folder in the instrument the prompt of Software ...

Page 67: ...Novatest S r l info novatest it www novatest it Manual for Multichannel Ultrasonic Pile Integrity Tester 59 of the instrument will appear 5 Press Close button to exit from update program ...

Page 68: ... integrity test of concrete cast in place pile with built in pipe 3 1 Main interface The main interface of the pile test software is composed of three parts as follow function button area single channel waveform area and data graphic area There are two kinds of optional display modes for main interface to select in View 1 6 or 2 3 1 6 means that single channel waveform with 6 profiles displays in ...

Page 69: ...Novatest S r l info novatest it www novatest it Manual for Multichannel Ultrasonic Pile Integrity Tester 61 a 1 6 Layout ...

Page 70: ...six small areas at most according to different number of channels in use 1 Function button area it is composed of several function buttons such as File Parameter and Sample etc as shown in Figure 4 1 each button may implement one common function when button color is grey it means this function is invalid in such condition 2 Singe channel waveform area It is used to display waveform and acoustic pa...

Page 71: ...cons at right side separately indicate battery level of lifting device Bluetooth connection status and battery level of host When Bluetooth icon is flashing it means that host failed to connect with lifting device 3 2 Parameter setup Press Parameter button in main interface of pile test to pop up dialogue box as shown in Figure 4 2 Press Advanced to pop up property page of General parameter and Ot...

Page 72: ...oject name and Foundation pile name and set parameters such as Pipe spacing and Number of pipe etc Figure 4 2 Parameter setup 1 Create new project or select existing project 1 Create new project Press New Site button behind the list box of Site name to pop up soft keyboard for inputting character input project name to create a subfolder with such name all data files of tested piles will be saved ...

Page 73: ...w pile If need to test a new pile press New Pile behind Foundation pile name and input the name of new pile in the pop up soft keyboard When read the file of tested pile or test a certain pile the name of this pile will display at here and it cannot be changed 3 Number of pipes Press edit box behind the Number of pipes to pop up single choice box of number of pipes The optional value is 2 3 and 4 ...

Page 74: ...t spacing includes 0 02 0 05 0 10 0 15 0 20 and 0 25m press corresponding value system will return to the parameter interface automatically and save the setting Press Cancel button to return to parameter setup interface without changing test point spacing Figure 4 3 Test point spacing 5 Pipe and channel setup Pipe corresponding to the channel is set U5600 has three channels and U5700 has four Ever...

Page 75: ... to pipe 2 Channel 3 corresponds to pipe 3 and Channel 4 corresponds to pipe 4 In test Channel 1 and 2 test Profile 1 2 Channel 1 and 3 test Profile 1 3 Channel 1 and 4 test Profile 1 4 Channel 2 and 3 test Profile 2 3 and Channel 3 and 4 test Profile 3 4 6 Pipe distance It refers to the clear spacing of sounding pipe outer wall in mm System will generate corresponding pipe spacing options automat...

Page 76: ...her parameters Default of each parameter is the value set at last time After have set all parameters press OK button to save parameters have been set press Cancel button for not Press Reset button in advanced parameter setup interface to pop up dialogue box inquiring Whether restore parameter to factory setting press Yes button to restore all parameters to factory setting and No for not NOTE If te...

Page 77: ...ue in Pipe 1 2 if the option All profiles of the same is selected values in other pipes are as same as this value If not selected value of each pipe may be changed separately 2 Selection of technical specification After have selected corresponding test procedure data will be real time analyzed and processed according to the procedure in test 3 Acoustic speed limit Whether limit the range of acoust...

Page 78: ... will not be limited 4 Stops sampling after transducer coming to pile head After have selected this option it will prompt to finish test and save data when pile length is in zero point in sampling If not test will continue even pile length is over zero point 5 Acoustic time corrected value of pipe and coupling water layer Figure 4 5 Acoustic time corrected value of pipe and coupling water layer Pr...

Page 79: ...of sound wave in pipe wall and water must be deducted as well which means the acoustic time corrected value of pipe and coupling water layer It shall be calculated as follows in which t Acoustic time corrected value μs D Outer diameter of pipe mm d Inner diameter of pipe mm d Outer diameter of transducer mm vt Acoustic speed value of pipe wall material km s vw Acoustic speed value of water km s 6 ...

Page 80: ...graph values of 0 1 1 may be set the default is 0 2 7 Acoustic parameter Acoustic time if selected it will display on the top left corner in single channel waveform area otherwise it will not display 3 2 2 2 Other parameters Figure 4 6 Other parameters Press Other Param label to switch to its property page as shown in Figure 4 6 user may set Sampling interval Number of waveform points and Transmit...

Page 81: ...ons 2 Number of waveform points Number of sample points of collected single channel waveform every time there are 4 options 512 1024 2048 and 4096 The default is 1024 Suggestion Do not input large value without special requirement otherwise it will negatively affect the speed in dynamic collection 3 Transmit voltage Select excitation voltage value when ultrasonic stimulated emission transducer gen...

Page 82: ...every test point will be saved automatically If wireless communication is adopted between depth recorder and host user shall select automatic wireless If wire communication is adopted between depth recorder and host user shall select automatic wire the default is automatic wireless 6 Lifting precision 1 Recalibration When user thinks the lift position displayed in pile test system is incorrect and...

Page 83: ...b Place the signal wire of transducer into wire duct of counter wheel and start to lift the system displays the current position of counter wheel at this moment c After have lifted 10 30m stop lifting read the depth value on signal wire of transducer at pipe mouth again and input it into the box of Depth of transducer after lifting press OK button to finish calibration of lifting precision press C...

Page 84: ...bove to recalibrate it 2 Precision recovery Press Reset system will inquire whether recover lifting precision select Yes to recover lifting precision value to factory setting select No for not 7 Counter wheel connection Press Connect button to enter into interface as shown in Figure 4 8 Figure 4 8 Counter wheel connection 1 List of paired devices Counting devices which have been ...

Page 85: ...s all counting devices which can be searched currently If need to pair a certain counting device just press this device in the list Tick will display behind the name of paired counting device and the indicator of counting device will change as well 3 Search Press Search button to research unoccupied counting device nearby 3 3 Data collection 3 3 1 Start sampling After have set parameters press OK ...

Page 86: ... user to input the position of first test point height value This value could be obtained through depth mark on signal wire of transducer Figure 4 9 Test pile length setup 1 Starting point of test It is the depth height value of first test point after have placed the transducer on pile bottom read the marked depth value of signal wire at pipe mouth ...

Page 87: ...pipe is blocked take out transducer cable in this pipe from lifting device when other profile tests reach the blockage position prompt message will pop up in system place the transducer cable in this pipe into lifting device and lift together After have saved the first test point all transducers shall be lift or put down simultaneously with constant speed pile test system will record data of all t...

Page 88: ...n tested then move transducer to next test point for continuous test NOTE After have saved the first test point recorded height value will display on the top status bar on screen Current height of transducer will display all the time in automatic test height of next test point will display in manual test 3 3 2 Stop sampling After all test points have been collected press Stop button to stop sampli...

Page 89: ...h of last test point It cannot be larger than the height of the first point in upward test or smaller than the height of the first point in downward test retest will start after has been confirmed and current data will be covered NOTE Retest method in manual mode is applicable to automatic mode as well 3 3 4 Intensive test Intensive test refers to the test on suspicious area found in test after te...

Page 90: ...ess view area in oblique test interface a cursor line will appear use up and down buttons in floating toolbar to adjust the position of cursor line and move it to proper height press Upper and Lower to terminate the defect area Press Clear button to clear all selected defect areas Press Exit button to return to previous interface static collection interface which is the interface before enter into...

Page 91: ... for oblique test press OK to start test Press Cancel to return to previous interface Place all transducers at designated positions according to the prompt message press OK button to collect waveform after have adjusted waveform press Save to save the first point then lift transducer in constant speed until test is completed Prompt message for next oblique test will pop up at this moment operate a...

Page 92: ...fferent instruments have different number of channels from 2 4 Each optional channel may be closed freely press check box in front of channel name to open or close channel Pipe corresponding to channel behind channel name may be freely adjusted according to the position of transducer linked with this channel in foundation pile Schematic graph of correspondence between pipe and channel displays at ...

Page 93: ... and 3 test Profile 2 3 Channel 2 and 4 test Profile 2 4 Channel 3 and 4 test Profile 3 4 NOTE Different instruments have different number of channels the number of selected channels must be more than 1 but not more than number of pipes 2 Profile status Profile list of current pile displays just below the schematic graph the profile with tested is the profile which has been tested the optional pro...

Page 94: ... down NOTE Oblique test must be implemented based on flat test same profile must be tested twice in oblique test Take m n profile as example Xm n m means that the transducer in pipe is up and n means it is down shall be tested at first and then Xn m 3 Drawing interface of profile acoustic shadow graph After oblique test completed Press Pipe to select profile and enter into interface as shown in Fi...

Page 95: ...nnel Ultrasonic Pile Integrity Tester 87 Figure 4 13 Drawing interface of acoustic shadow graph 4 Oblique test check interface Press Check to enter into check interface check acoustic shadow graph of all profiles which have finished oblique test as shown in Figure 4 14 ...

Page 96: ...urn to drawing interface of acoustic shadow graph as shown in Figure 4 13 Sliding toward right in acoustic shadow graph may switch to check interface of flat test 3 3 7 Test next pile After one pile has been tested user must create a new pile at first for testing next pile In dialogue box of parameter setup press New pile button after foundation pile name refer to Section 4 2 1 for more details ...

Page 97: ... in main interface to pop up toolbar as shown in Figure 4 15 for switching views When the buttons corresponding to current view and display mode are grey invalid other buttons are valid If the current view is wave train graph and display mode is 1 6 the Wavetrain and 1 6 buttons are grey Figure 4 15 View switchover toolbar In all kinds of views when press graph area cursor line will appear meanwhi...

Page 98: ...the red area is the more serious the abnormality of amplitude is The right side displays acoustic speed depth curve blue represents normal acoustic speed in this area and red represents abnormality the bigger the red area is the more serious abnormality of the acoustic speed is There is a dark color rectangular block called indication mark of transducer position in the middle of bar graph it will ...

Page 99: ... depth PSD depth acoustic speed and depth amplitude of all profiles in the same coordinate system as shown in Figure 4 17 Press a certain position in curve graph area to display elevation and all parameter values of all profiles at the pressed position user may press and Ø buttons to move cursor when it is moved a certain test point the waveforms of this test point in all profiles will display in ...

Page 100: ...s Wavetrain button to switch to the view of Wave train graph and display the waveforms of all profiles according to height as shown in Figure 4 18 Press a certain position in wave train graph area to display waveforms of all profiles at pressed position press and Ø buttons to switch test points or check the wave train graph through sliding screen up and down ...

Page 101: ...ea and the selected rows display in yellow the waveforms of selected test point of current profile display in single channel waveform area If there is not data at a certain height will display in table and corresponding single channel waveform area will not display waveform The right side of data list is single profile curve graph press a certain position in curve graph to automatically jump to th...

Page 102: ...ile Integrity Tester 94 parameter value Figure 4 19 Data list 3 5 Exit Press Exit in main interface to close pile test software and return to system startup interface Before exit system will automatically check whether data files has been saved or not if not it will prompt user to save ...

Page 103: ...Chapter 5 Ultrasonic rebound combined method software for testing strength 5 1 Main Interface Press Detecting Strength of Concrete button to run ultrasonic rebound combined method software for testing strength called strength test for short as shown in the Figure 5 1 Figure 5 1 Main Interface of Strength Test ...

Page 104: ...ic parameter of current test point please refer to Section 3 4 for details Press any part in the waveform area one transverse cursor and one vertical cursor will appear and parameters such as acoustic time and amplitude will display on the bottom of the waveform area 3 Data list area it is used to display the ultrasonic data of each test point acoustic time wave speed etc press the spacing test ce...

Page 105: ... to enter into the interface of advanced parameter setup and more parameter setup is available Default of each parameter is the value setup at last time After have set all parameters press OK button to validate all settings writing the setup value of parameters into the initialization file and return to main interface press Cancel button to invalidate all settings and return to main interface 5 2 ...

Page 106: ...he list box of Project name to pop up soft keyboard for inputting character input project name to create a subfolder with such name all data files of tested piles will be saved in this folder When create a folder if a folder with same project name has existed prompt of This project has existed already please input the project name again will pop up select OK button to pop up the project name input...

Page 107: ... Test Regions Number of test regions refers to the total number of test regions arranged on the object to be detected and its input range is from 1 50 4 Number of Test Points Number of test points refers to the total number of test points arranged in every test region which generally is 3 points or 5 points When choosing Jiangsu curve the number of test points is 5 and that of other curves is 3 5 ...

Page 108: ...e of thickness test distance of the flat test as shown in Figure 5 3b refers to the centre to centre spacing between two transducers which range generally is 350 450mm test distance of the angle test as shown in Figure 5 3a refers to the hypotenuse distance i e square root of the two right angle sides a Angle Test b Flat Test Figure 5 3 Schematic Graphs for Angle Test and Flat Test ...

Page 109: ...face Type of test surface of the object to be tested may be chosen the side or top or bottom surface and the default choice is the side surface 9 Design Strength The design strength grade of the object concrete to be tested may be chosen within the value range from C10 to C100 5 2 2 Advanced parameter Press Advanced button in parameter setup interface to pop up dialogue box as shown in Figure 5 4 ...

Page 110: ... to factory setting and press No for not NOTE If tested data exist Reset button is invalid Figure 5 4 Advanced Parameter Acquisition Parameter 5 2 2 1 Acquisition Parameter Press Sampling label then it will switch to the corresponding property page as shown in Figure 5 4 Sampling interval Transmitting voltage and other parameters may be set up at this page Acquisition parameters need to be set for...

Page 111: ...e the small value and on the contrary test for the object with large test distance may choose the large value 2 Sampling Length Number of sample points of collected single channel waveform every time there are 4 options 512 1024 2048 and 4096 The default is 1024 Do not input large value without special requirement otherwise it will negatively affect the speed in dynamic collection 3 Transmit volta...

Page 112: ...5600 only may choose channel 1 5 Zero acoustic time Zero acoustic time refers to the acoustic delay between ultrasonic instrument and the transmitting and receiving transducers Zero acoustic time may be realized by manual input or press Zero button to apply the zeroset function to automatically realize Zero acoustic time Please refer to section 3 6 for details NOTE Parameters listed above only may...

Page 113: ...aveform area At that moment Sample button will be changed into Stop button Exit button became Search button that will be used for searching head wave NOTE Detailed information of waveform operating please see public module waveform operating If the data needs to be saved then new object name must be input prior to sampling if the object name fails to be input the Save button will become invalid 1 ...

Page 114: ...ton it will automatically implement calculation refresh calculation results and save data automatically into the disc 5 3 3 Retest Retest refers to testing the part or all of the tested data once again Please refer to Section 3 7 for details New test data will cover the previous data automatically in retest 5 3 4 Test Next Object After completing of test on one object to test on next object it mus...

Page 115: ...ltrasonic data list area will display the serial No test distance acoustic parameter average rebound strength conversion strength and others as shown in Figure 5 6 Figure 5 6 Ultrasonic Data List Area The following operations may be made in Ultrasonic data list area 1 Press data row then such data row will be displayed in yellow color and waveform in the waveform area will become waveform of such ...

Page 116: ...ound and carbonization depth three values of the current test point may be modified and press OK button after modification to automatically pop up modification interface of next test region data Repeat such process again and again until the completing of modification of all test region data and the modification interface will no longer pop up If press Cancel button in the middle of the process the...

Page 117: ...to test distance average rebound and carbonization depth values of all other test point in such test region It will recalculate automatically 5 5 Schematic Graph Area Schematic Graph Area is locates at the right side of main interface the top half of view displays object name project test methods and other basic information and the lower half of view displays inferable value minimum detecting regi...

Page 118: ...ment Detailed information please refers to section 3 5 5 7 Exit the Test Press Exit button on main interface then the strength test software in combined method will be closed and return to start interface Before exit system will automatically check whether data files have been saved or not if not it will prompt user to save ...

Page 119: ...mission method for testing defect and cavity Test Software 6 1 Main interface Press Detecting Defects of Concrete button in start interface then ultrasonic method testing defect area and void detection software hereinafter referred to as crack test will be operated as shown in Figure 6 1 Figure 6 1 Main interface of pile integrity test ...

Page 120: ...rameters of the current test points and acoustic parameter will display at the bottom of waveform please see section 3 4 for details 3 Data List Area it is used for display ultrasonic data of every test point Acoustic Time Wave Velocity press test point test distance cell in Data List Area may modify the current test point test distance data details please see section 6 4 for details 4 Defects Sch...

Page 121: ...and return to main interface 6 2 1 Basic parameter Project name Object name Test distance and other parameters may be set up in basic parameters interface as shown in Figure 6 2 Figure 6 2 Parameter setup 1 Create new project or select existing project 1 Create new project Press New project button behind the list box of Project name to pop up soft keyboard for inputting character input project nam...

Page 122: ...y button New button behind the Component Name to pop up character soft keyboard input name of object to be tested and complete new object procedure Object data tested previously will be saved automatically prior to new object being set up Integrity of current object data whether test points have been tested or not will be checked prior to new object operating if incomplete then corresponding promp...

Page 123: ...hown in Figure 6 3 Sampling interval Transmit voltage Zero acoustic time and other parameters may be set up at this page After all parameters being set up press OK button then all setting ups are valid and those setting up values of every parameter will be written into initialization files and return to basic parameter setup interface press Cancel button then all setting ups are invalid and return...

Page 124: ...ignals may be chosen from several levels from 0 025 to 409 6μs The default is 0 4μs which is applicable to most test conditions According to the distance between transmitting and receiving transducers test distance and depending upon the time accuracy requirements test on small size object may appropriately choose the small value and on the contrary test for the object with large test distance may...

Page 125: ...s including 65 250 500 and 1000 The default is 500V which is applicable to most test conditions If other test conditions remain unchanged the higher transmit voltage is the stronger received signal is It is suggested to choose 65V or 250V for small test distance 4 Transmitting Receiving Channels Transmitting Receiving Channels refer to channels connecting with transmitting and receiving transducer...

Page 126: ...Parameter Two methods may get critical Value i e to determine internally or by reference it will be regarded as to determine internally under the circumstance of no check in the option box and critical value of acoustic parameters are calculated according to default test specification which may not be modified by users when users choose Set they may edit and modify all critical values of acoustic ...

Page 127: ...veform area At the moment the Sample button will be changed into Stop button Exit button became Search button that will be used for searching head wave If the data is to be saved the new object name shall be entered prior to sampling if no object name is entered the Save button is invalid 1 Save the First Test Point After the first test point having been adjusted press the Save button and the curr...

Page 128: ...peration panel As shown in Figure 6 4 Press the Blank button to insert an empty test point data of which being displayed in and not being calculated Figure 6 4 Operation panel for dynamic waveform 6 3 2 Stop sampling During the sampling it can be stopped by pressing the Stop button which will turn over to the Sample button and the Search button will return over to the Exit button at the moment and...

Page 129: ...it must chose new object option press the New button behind the Component Name in the parameter setup dialogue box Prior to creating the object check if the current data of the object is modified but unsaved and prompted to save In creating object the data of the current object will be eliminated and all relevant parameters will be reset 6 4 Ultrasonic Data List Area The sequence number spacing te...

Page 130: ...in yellow the waveform in the Waveform area will change into that of the test point while the location of the test point will be displayed in the Defects schematic graph area In the Ultrasonic data list area certain spacing test instead of other values that are obtained by calculation can be modified in the table directly Press the area where the spacing test data cell to be modified is and pop up...

Page 131: ...chematic graph area is located in the right side of the main interface displaying the layout of test point for current object in grid Each node of the grid stands for one test point which is shown in red dot after being tested After completion of testing the suspicious test points will be calculated and judged automatically as per the Technical specification for inspection of Concreter defects by ...

Page 132: ...perations can be conducted in the defects schematic graph area 1 Sliding up or down and left or right can result in page up or down and left or right 2 When pressing certain node in the grid the waveform of this test point will be displayed in the waveform area while the data of this test point will be displayed in the data list area in the interactive manner ...

Page 133: ...7 6 6 File Management Please refer to the Section 3 5 for details 6 7 Exit Test Press Exit button in the main interface to close the defect test software and return to the startup interface Before exit system will automatically check whether data files has been saved or not if not it will prompt user to save ...

Page 134: ... 128 Chapter 7 Ultrasonic method for testing crack depth software 7 1 Main interface Press the Detecting Depth of Crack button in the startup interface and run the ultrasonic method for testing crack depth called crack test for short software as shown in Figure 7 1 Figure 7 1 Main interface of crack test ...

Page 135: ...each button can implement a common function When the button turns grey it indicates the function in the current state is invalid 2 Waveform area It is used to display waveform and acoustic parameter of current test point please refer to Section 3 4 for details 3 Test point data list area It is used to display the original testing data spacing test and acoustic time of current crack test points and...

Page 136: ... button and head wave can be searched automatically after pressing b Crack test steps The non crack across data shall be tested first followed by the test of crack across data After creating a new object the first default test is non crack across data Without non crack across data the crack across test cannot be made 7 2 Parameter setup Press Parameter button in the main interface of crack test to...

Page 137: ... and the setting gets invalid and returns to the main interface 7 2 1 Basic parameter Figure 7 2 Parameter interface Parameters including Project name Component name Starting distance and Step spacing can be set at the basic parameter interface 1 Create new project or select existing project 1 Create new project Press the New button behind the project list box to pop up ...

Page 138: ...roject to list all tested projects under the current project select one to save all following data file in this project 2 Create new object When move to the next object after the completion of the last press the New button behind the component to clean the data of the current object and create a new crack test file to conduct the test of the new object The tested data will be saved automatically b...

Page 139: ...ress the OK button to validate all settings writing the values of parameters into the initialization file and return to the basic parameter setup interface press the Cancel button and the setting gets invalid and return to the basic parameter setup interface Press Reset button at advanced parameter interface to pop up the dialogue box inquiring Whether restore parameter to factory setting press Ye...

Page 140: ...s multiple levels between 0 025 409 6μs are available The default is 0 4μs which is applicable to most test conditions It is set according to the distance spacing test between receiving and transmitting transducer and the time accuracy requirement Small value shall be selected when measuring small size objects such as test block and core sample otherwise bigger value shall be selected when the spa...

Page 141: ...c pulse there are several options including 65 250 500 and 1000 The default is 500V which is applicable to most test conditions If other test conditions remain unchanged the higher the transmitting voltage is the stronger the receiving signal is It is suggested to select 65 or 250V when testing the test block and small core sample 4 Transmitting and receiving channels Transmitting and receiving ch...

Page 142: ...easuring line non crack across cracks and several crack across measuring lines at the object to be tested and arrange the test points the test points on across crack measuring lines must be arranged symmetrically at both sides of the crack at each measuring line Use the signal line to link two planar transducers with the transmitting and receiving channels of the instrument respectively and couple...

Page 143: ... test points must be equal to or more than 3 the regression calculation can be conducted and the New crack button is valiable 1 Save the first test point Press the Save button after adjusting the first pair of test point waveform save the first test point data and refresh the data list area as well as display the saved test point data 2 Test of the Subsequent Test Point After the first test point ...

Page 144: ...etails New test data will cover the previous data automatically in retest 7 3 4 Test the next crack After testing a crack you must first create a new crack if testing the next crack Press the New crack button at the main interface to pop out the crack number input box The default is the last crack number plus 1 and users are allowed to modify the crack number is not allowed to exceed 10 characters...

Page 145: ...t When creating a new object eliminate the current object data to maintain the last parameter setting for example the starting point spacing and step spacing 7 4 Test point data list area The Test point data list area is used to display the original testing data including spacing test and acoustic time and intermediate result calculating the crack depth of the testing points on the current crack a...

Page 146: ...ress Yes button to complete it Each crack has one opposition point at most namely the reversed test point on waveform so after setting a test point as the opposition point the mark of the previously set opposition point will be removed automatically Before the Test point serial number of the opposition point will be displayed 2 Manual save remove The function is valid only when the current focal p...

Page 147: ...n 7 5 Crack data list area The Crack data list area mainly displays the basic information of all cracks of current object including serial number name crack across types and crack depth as shown in Figure 7 5 After pressing a data line the selected crack will be set as the current crack and the data of all its test points will be displayed in the test point data list area Figure 7 5 Crack data lis...

Page 148: ...epresents the acoustic time spacing test curve of current crack across test points and the red heavy line stands for the acoustic time spacing test curve of non crack across test points Through dynamic real time refreshing in the testing process the current crack test result can be observed at any time and the current inferable crack depth value will be displayed on the upper right of the curve at...

Page 149: ...rasonic Pile Integrity Tester 143 7 8 Exit Test Press Exit button at the main interface to close the crack test software and return to the startup interface Before exit system will automatically check whether data files has been saved or not if not it will prompt user to save ...

Page 150: ... Personnel Division First testing personnel shall be divided one person for common instruments operation and site recording and one for measurement transmitting and receiving transducer 2 Site Data and Information Collection Understand or check engineering and geological data design drawing of foundation pile construction record supervision journal etc understand abnormal conditions occurred in co...

Page 151: ...s from the pipe close to north as No 1 and conducted by clockwise as shown in F1 1a a Numbering of pipes b Measurement of pipe spacing Figure F1 1 Numbering of pipes and measurement of pipe spacing 3 Measure and record the clear spacing among outer wall of each pipe as shown in F1 1b Manual for Multichannel Ultrasonic Pile Integrity Tester 146 4 Measure and record the height from pipe mouth to act...

Page 152: ...out of the pile head and the depth mark on signal wire of transducer recording profile depth of real measurement and opening the pressing wheel on depth recorder then put multiple signal wires into depth recorder pulley groove and put down the pressing wheel as shown in F1 4 a Open pressing wheel b Put signal wire in groove c Put down pressing wheel Figure F1 4 Installation of signal wire NOTE whe...

Page 153: ...d shall ensure all transducers are on the same level When using oblique test method it shall be ensured that one transducer remains certain height difference with others As shown in F1 5 a Flat test b Oblique test Figure F1 5 Schematic graph of test point arrangement 3 Connecting the signal wire of transducer in each pipe to corresponding channel on the front panel of pile test instrument as shown...

Page 154: ... press Detecting Integrity of Pile to enter main interface of pile test software as shown in Figure 4 1 Press the power switch on counter wheel the indicator light flashes quickly waiting for pairing if using counter wheel that have already been paired it will connect automatically after entering logging for testing pile integrity otherwise it needs to connect pairing by pressing Connect button af...

Page 155: ...by pairing Figure F1 7 Connection of depth recorder F1 1 2 Test of New Foundation Piles F1 1 2 1 Parameter setup 1 Main parameters The name of new project or selection of the tested projectpinput of foundation pile namespsetup of test point spacingpselection of pipe numberpinput of pipe distance Refer to Section 4 2 1 for details 2 General parameter Setting system delay for each profile of the dev...

Page 156: ...ts special need F1 1 2 2 Data collection After parameters setting press OK button to return to main interface 1 Start sampling Press Sampling button on the main interface to sample continuously start device collection and display the waveform of each profile on each single channel waveform area find and position the starting point of the head wave and the head wave crest through searching gain adj...

Page 157: ... tested 2 Waveform Adjustment During the dynamic sampling the waveform of a profile may be clicked at the single channel waveform area which turns it to a focal point then click the corresponding buttons to adjust the gains and delays on the pop up dynamic waveform control panel Refer to Section 3 4 2 for details 3 Automatic Retest During the dynamic sampling when the diagram of pile body shows su...

Page 158: ...f another pile can be started in the above way NOTE after the test of one pile the transducer should be placed to the bottom of another pile in the pipe of next pile to be tested then click the Parameter button click the New pile button after the name of foundation pile in the dialog box to create a new pile input the parameters of the pile and click the OK button after setup retest according to t...

Page 159: ...enerally pipe interval less than 1000mm When testing an independent file will be saved for each oblique test of each profile and named in a given rule for example higher transducer no 1 for profile 1 2 lower transducer no 2 oblique test may be named as pile no 1G2D higher transducer no 2 for profile 1 2 lower transducer no 1 oblique test may be named as pile no 1G2D etc All profiles with abnormal ...

Page 160: ...ying projects in the project list at last click the Copy button to copy all the data of the selected projects to the USB A Note will pop up after export of all files by the time the USB may be removed from the device then to connect to the USB port of a computer thus all the data can be copied to the computer F1 1 3 2 Data Analysis 1 Data processing for flat test 1 Run the software on the computer...

Page 161: ...ther the interpretation of the head wave is right set the acoustic time and amplitude of the head wave manually if it is mistake 5 Recalculate and adjust the zoom of the depth curve 6 Select Bitmap Creation function to save the curve graph as bitmap or select print to bitmap function to save it as bitmap 7 Save analyzed data file and print out for filing 2 Oblique data processing 1 Process the dat...

Page 162: ... Tester 157 4 Save the analyzed data file print them out then put into file Figure F1 9 Acoustic Shadow Graph NOTE the utilization of the analysis software refers to the relative chapters of the service manual F1 1 4 Report Preparation The draft of the test report can be created by the using Report ...

Page 163: ...e positions 3 The summary of testing results of ultrasonic test method 4 The test report of single pile by cross hole Sonic Logging method 5 The acoustic velocity depth and amplitude depth curve for each profile of each testing pile as well as its critical values mean of acoustic velocity and amplitude and the acoustic shadow graph of Oblique test method 6 Analysis specification for defect positio...

Page 164: ...ne for placing the transmitting transducer and one for placing the receiving transducers 2 On site data and information collection 1 Project name design construction construction and entrusting unit name 2 Construction drawings structure or component name and designed concrete strength grade 3 Cement varieties and consumption Varieties and specifications grain diameter of gravel and sand varieties...

Page 165: ...objects shall meet the following conditions the same concrete strength grade concrete materials mixing proportion molding process maintenance and concrete age are basically same same components variety same state in the construction phase 4 Test area arrangement 1 If conditions permit the test area shall be prior arranged at side of the concrete casting direction and may be placed on two opposite ...

Page 166: ...face remove the debris and polish the uneven surface with the grinding wheel if necessary and wipe the residual dust 6 The test areas on the structure or objects shall be clearly marked with the serial number the test area location and appearance quality 7 When the opposite measuring method is conducted make ensure that the test areas on two test surfaces shall be directly opposite Figure F1 10 Sc...

Page 167: ...ly conducted at side of the concrete casting direction If the side of concrete casting direction does not meet the horizontal test conditions the non horizontal test may be conducted or test the concrete casting top or bottom surface 4 When the rebound values are measured both ultrasonic transmitting and receiving surface in the test area of the object have 8 rebound points respectively as shown i...

Page 168: ...nd value conforms to the requirements of Rebound Method for Testing Concrete Strength Firstly take out 3 smallest values and 3 greatest values and calculate the average value of the remaining rebound values the final rebound value is obtained after the correction of angle and casting surface F1 2 2 2 Measurement and calculation of ultrasonic acoustic velocity 1 Test requirements 1 The ultrasonic t...

Page 169: ...elect the Combined Method for Testing Strength on the startup interface and enter into the Combined Method for Testing Strength software 2 The signal lines from the transmitting and receiving transducer shall be connected to the transmitting and receiving channels respectively 3 Go to the parameter setup interface and set the project name object name spacing test test area test point and other par...

Page 170: ...ed at two test points of the first test line 2 When sampling adjust automatically or manually to display the head wave at the first test point appears on the instrument screen press Save key to save the data of the first test point 3 The receiving and transmitting transducers shall simultaneously move to the next test point and shall be coupled properly with butter when sampling adjust the wavefor...

Page 171: ...concrete casting top or bottom surface the representative value of acoustic velocity in the test area shall be corrected due to the segregation of coarse aggregate and surface laitance and other reasons the acoustic velocity tested on the upper and lower side may be smaller than the acoustic velocity measured on the side The rebound values also has errors due to operation directions In which va in...

Page 172: ...gement as shown in Figure F1 12 Figure F1 12 Schematic graph of angle test The ultrasonic test spacing shall be calculated as per the following formula In which li indicates the ultrasonic test spacing of the transducer at the ist test point during the angle test mm l1i l2i indictates the distance between the transducer at the ist test point and the object edge during the angle test mm ...

Page 173: ...arrangement shall be as shown in Figure F1 13 When the ultrasonic flat test points are arranged it is optimal to form 400 500 angle between the connection line of the transmitting and receiving transducer and the adjacent rebar axis and the ultrasonic spacing test shall be 350 450mm Figure F1 13 Schematic graph for flat test A Flat test acoustic velocity correction The acoustic velocity of flat te...

Page 174: ... calculate the correction factor λ is for correction B Flat test casting surface correction Based on the linear equation l a bt the acoustic velocity of flat test shall be calculated as per the flat test data of concrete casting top or bottom surface The calculation formula for the representative value of acoustic velocity in concrete after correction is as shown below In the formula β indicates c...

Page 175: ...the correction value of acoustic time if the initial readings for acoustic time have been input to the instrument this step can be skipped 3 Rebound data processing 1 If the digital display rebound instrument is applied the data in the rebound instrument shall be transmitted to the computer by using U disk or data transmission software in the computer and then the rebound data shall be imported to...

Page 176: ...report according to the data processing above mentioned the report shall cover following content 1 Works and test information 2 Summary table of test results by Ultrasonic rebound combined method including average conversion strength value standard deviation minimum value and constructive strength value of each structural member etc 3 Initial data and calculation result of each structural member 4...

Page 177: ...information collection 1 Project name and design construction and entrusting units names 2 Test purpose and requirements 3 Type and specification of concrete raw material 4 Template type concrete forming date and pouring and curing conditions 5 Structural member dimension reinforcement construction drawing or reinforcement concealment drawing 6 Appearance quality and problem of structural member 3...

Page 178: ... less than 20 3 Concrete in test area shall be clean and smooth Using grinding wheel to rub down or high strength fast setting mortar to trowel the surface if necessary Toweled mortar must cohere well with concrete 4 Test points arrangement According to the actual conditions of tested structure the arrangement of test points could be performed through one of the following methods 1 If structural m...

Page 179: ...3 When test distance is large drilling or embedded pipe test method may be adopted As shown in Figure F1 16 embed pipe at test point or drill vertical test hole the inner diameter of embedded pipe or diameter of drill hole is larger than the diameter of transducer by 5 10mm the interval between embedded pipe or drill hole is 2 3m and the depth may be determined according to the need of the test Du...

Page 180: ...Novatest S r l info novatest it www novatest it Manual for Multichannel Ultrasonic Pile Integrity Tester 175 c Actual Arrangement of Points Figure F1 14 Schematic Graph for Opposite Test Method ...

Page 181: ...channel Ultrasonic Pile Integrity Tester 176 Figure F1 15 Vertical View of Oblique Test Method Figure F1 16 Schematic Graph for Drilling Method F1 3 2 Ultrasonic test 1 Test requirements 1 Treat the surface of test point for optimize the use of amplitude parameters ...

Page 182: ...ude have been satisfied 5 Transducer shall keep close contact with concrete test surface through couplant no silt or air is allowed in coupling layer 6 Transmission pathway of ultrasonic parallel to reinforcement bar axis nearby shall be avoided in test if not the shortest distance between connection line of two transducers and this reinforcement bar shall not be less than 1 6 distance in ultrason...

Page 183: ... acoustic time tests use grease to couple with two end faces of transmitting and receiving transducers and press Zero setting Please refer to Section 3 6 for detailed operation 3 Test 1 Use grease to couple transmitting and receiving transducers with the first test point cross point of the first transverse line and first vertical line of first test line on two test surfaces of structure member sep...

Page 184: ...e second transverse line and first vertical line take sample save and so on until have tested all test points F1 3 3 Data processing 1 Data transmission Transmit the test data in instrument to computer through instrument port or U disk 2 Ultrasonic data processing 1 Double click the icon of Ultrasonic data processing system on computer desktop to enter into selection interface of analysis software...

Page 185: ... head wave and calculate again 3 Judge according to abnormal acoustic parameters of test point Acoustic speed steady and good repeatability data has comparability Amplitude sensitive to defect but effect from surface coupling conditions is large Frequency the regularity between this parameter and defect is not clear yet and only for reference Abnormality in acoustic parameter is not structural def...

Page 186: ...ft of report according to the data processing above mentioned the report shall cover the following content 1 Project and test information 2 Summary table of test results from each test position including average value standard deviation and critical value of each acoustic parameter 3 Schematic graph of defect distribution at each test position 4 Detailed description of defect location and severity...

Page 187: ...f concrete raw material 4 Template type concrete forming date and pouring and curing conditions 5 Structural member dimension reinforcement construction drawing or reinforcement concealment drawing 6 Appearance quality and problem of structural member 3 Test line and test point arrangement 1 General requirements a Only applicable to crake with depth less than 500mm b Crack cannot be filled with wa...

Page 188: ...ngle to reinforcement bar then draw 3 to 6 test points at least 3 points otherwise calculation is impossible as shown at the left side in Figure F1 17 the spacing between Test point 1 and 2 is 100mm other test points spacing is 50mm b Find out the widest position on the crack to be tested draw a test line forming certain angle to reinforcement bar at the direction of the widest crack to be tested ...

Page 189: ...system and test parameters unchanged in test 2 Transducer shall keep close contact with concrete test surface through couplant no silt or air is allowed in coupling layer 3 Transmission pathway of ultrasonic parallel to reinforcement bar axis nearby shall be avoided in test if not the shortest distance between connection line of two transducers and this reinforcement bar shall not be less than 1 6...

Page 190: ...tangent to drawn test points during the test 2 Test preparation 1 Power on instrument select Surface crack test in startup interface to enter into ultrasonic crack test software 2 Connect signal wire of transmitting and receiving transducers with transmitting and receiving channels of instrument separately Enter into parameter setup interface to set project name structural member name crack number...

Page 191: ...the data of the first test point 3 Remain transmitting transducer unchanged move receiving transducer to the next test point and couple through grease take sample adjust waveform and press Save when appropriate 4 Repeat the third step until have tested all test points in no crossing crack test line 4 Crossing crack test 1 Use grease to couple transmitting transducer and receiving transducer with t...

Page 192: ...rack test line F1 4 3 Data processing 1 Data transmission Transmit the test data in instrument to computer through instrument port or U disk 2 Ultrasonic data processing 1 Double click the icon of Ultrasonic data processing system on computer desktop to enter into selection interface of analysis software 2 Click Crack test analysis button to enter into data processing software for ultrasonic crack...

Page 193: ...data list eliminate or retain 3 Calculation 1 Click Processing Calculate crack depth a If phase reversal in head wave is found in crossing crack test take the average value of this test distance and calculation results of two adjacent test distances as crack depth b If phase reversal in head wave is not found in crossing crack test calculate crack depth value and average value corresponding to all...

Page 194: ...ty Tester 189 F1 4 4 Report formulation Formulate first draft of report according to the data processing above mentioned the report shall cover the following content 1 Project and test information 2 Summary table of test results for each crack 3 Schematic graph of position and trend of each crake ...

Page 195: ...est S r l info novatest it www novatest it Tel 010 51290405 51290406 Fax 010 51290406 Email zbl zbl cn Web http www zbl cn Version Ver2 3 20150702 Tel 39 0719982861 Email info novatest it Web www novatest it ...

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