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  • Soft ground Treatment
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  • There is a trustworthy company, a company that strives, and a construction centered on it.
  • Increase strength of ground with inducing ground density by using percussion energy (compaction wave and breaking wave) created from free dropping of pounder (10-30 tons) at 10-40M height
  • The main purpose are increase bearing capacity, decrease of subsidence volume, decrease volume of potential liquefaction
  • For improvement of ground reclaimed and embanked with huge area
  • For improvement of irregular ground
  • For improvement of reclaimed area with waste
  • For improvement of reclaimed area with ash or slag
  • For sandy, silty ground and special ground with rubbish
  • Short construction period with simple works
  • Wide range of improvement
  • Special chemicals or special materials are not necessary
  • Economic method compare to other methods for wide area
  • Prompt improvement by using impulse energy
  • Can secure improvement effectiveness by pilot tamping test at irregular ground during construction
  • Preparation

    • - Initial Ground Survey (Boring log, etc)
    - Basic Design (apply to similar ground after initial ground survey)
    - Supply machines (Liebherr Crane for tamping, Pounder, Bull-Dozer, Back-Hoe, etc)

  • Selection of pilot tamping area

    • - Selection of area (ground survey and marking for pilot dynamic compaction) and preparation
    - Pre-investigation (S.P.T / D.C.P.T) and equipment setting

  • Pilot Dynamic Compaction

    • - Testing (S.P.T / D.C.P.T / F.D.T) and measurement (pore water pressure , ground movement etc)
    - Test result analysis and supplement of design

  • Main Dynamic Compaction

    • - Transportation of top or banking (1.5 M above under ground water), if necessary.
    - Secure trafficability

  • Test and Measurement

    • - Confirm and supplement of improvement effectiveness or factor changing during construction

  • Finish