Allied Ho-Pac NT8900 Series, Техническое руководство

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SECTION 3.0
PRINCIPLES OF OPERATION
The Allied Ho-Pac is a high energy
compaction tool utilizing three
compaction techniques:
ƒ The IMPULSE FORCE generated
by the rotating eccentric mass
vibrates the soil near the base plate
to eliminate voids between material
particles.
ƒ
The VIBRATION FREQUENCY of
2000 r.p.m. provides maximum
effectiveness for the consolidation
and compaction of granular soil
materials.
ƒ The DOWN FORCE of the carrier
provides a preload force to
effectively transfer the vibrating
energy and to compress the
material.
The Ho-Pac features specially designed
spring mounts that direct the energy
forces to the compaction plate, not the
carrier boom. The weight of the Ho-Pac
and the boom, plus the high impulse
vibration forces produced by the Ho-Pac,
are ideal for compacting granular
materials. The vibrations generate stress
waves which bring the air in the soil to
the surface; the soil particles are
compressed and compacted. These same
forces can also effectively compact
cohesive materials
Optimum compaction is usually obtained
with two passes. The duration of the
initial pass is dependent on depth and
material. The second pass may require
additional fill material and Ho-Pac
repositioning to achieve a finished
surface.
The Allied Ho-Pac can also be an
effective sheet or pile driver. The Ho-
Pac’s vibrational energy is transferred
through the sheet or pile to the soil.
Sandy soils and moist clays are
“softened” by the vibration which allows
the sheet or pile to penetrate more easily
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