The idea lying behind Dynamic Consolidation dates back
to centuries ago.
Tamping was used in ancient China on small scales to improve
the bearing capacities of bad soils under paved road.
After years of researches, Mr Louis Menard has been the
first to successfully develop the method at large scale for
improvement of bad granular soils not only under road embankments
but also under industrial buildings.
This method gained rapidly popularity as it reveals a cheap
alternative to piles, giving safe and satisfying results.
The basic principle of DC consists in transmitting high energy
shockwaves to the soil in order to improve its characteristics,
Practically, the soil is densified by the repetition of impacts
of a pounder ( 10 to 40 tons ) dropped from heavy weight cranes
( 10 to 40m ) in a pre-designed grid pattern.
DC can be applied on granular soils ( sand, rock, mountain
fill.. ) bu is also efficient for the rehabilitation of landfills
for road construction, industrial complexes or recreational
landscaping.
By the repetition of high energy impacts of a pounder
on a grid pattern, soil can be densified.
Energy depends on soil conditions, future loads, type
of structure. Before start of the works, a trial test area is
usually performed to calibrate pounder weight, free fall drop
height, grid.
A careful quality control program has to be performed during
and after tamping to check the success of the compaction process..
The choice of the adequate equipment depends on the energy
required for tamping which is linked to the thickness of soil
to be improved.
Sangjee Menard offers a wide range of equipment suitable
for most of site conditions. Most of our equipment were designed
in-house and are modifiable to take into account the specificity
of each jobsite.
