USER
MANUAL
HC1151
A
NNEXES
E.13
7845436-01 11/18
subject to change without notice
E.5
BEARING CAPACITY OF SOILS
The following table shows values of bearing capacity for different soil types: these values are only
indicative and can change depending on material, humidity, granulometry, hardness, inclination and
other soil properties and conditions.
E.6 BEAUFORT
SCALE
SOIL TYPE
BEARING CAPACITY
MPa
Natural, clearly virgin soils (mud, peat, marsh soil)
0
Fill soil, not compacted
0.0 ÷ 0.1
Not coherent, but compact soils (fine and medium sand)
0.15
Coarse sand and gravel
0.20
Coherent soils:
-
doughy
0
-
soft
0.04
-
rigid
0.1
-
half-solid
0.2
-
solid
0.4
-
rock
1.5
- solid rock
3.0
Wind Symbol
Wind speed
km/h
Force
Effect
Calm
0 - 1
0
Smoke rises vertically
Light air
1 - 5
1
Smoke drifts slightly
Light breeze
6 - 11
2
Leaves rustle
Wind vane moves
Gentle breeze
12 - 19
3
Leaves-constant motion
Light flag extended
Moderate breeze
20 - 28
4
Raises dust and papers
Small branches stir
Fresh breeze
29 - 38
5
Small trees sway
Strong breeze
39 - 49
6
Large branches move
Use of umbrella difficult
Moderate gale
50 - 61
7
Whole trees in motion
Fresh gale
62 - 74
8
Twigs broken off trees
Difficult to drive a car
Strong gale
75 - 88
9
Slight structure damage occurs
Whole gale
89 - 102
10
Trees uprooted
Severe structural damage
