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