what it is:
Large diameter columns formed by driving granular material into the soft soil by dropping a 15- to 30-ton weight from 30 to 120 feet—the material used to fill the columns can be pushed from the working platform or directly from a loader into the crater.
how it works:
By creating a composite material dynamic replacement column and displacing the surrounding soil, the strength and geotechnical properties of the soil mass are improved.
why it’s used:
Increases bearing capacity, reduces long term settlement and consolidation time of compressible soft fine soils.
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