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Cement Deep Soil Mixing (DSM) and Displacement Grouted Columns (DGC)

Woodburn, OR

Project Description

Design and build of ground improvement for a 4.5-story building with an 823,000 square foot footprint. AGI designed a solution to mitigate static and liquefaction settlements through a hybrid system consisting of DGC columns beneath the slab on grade with a Load Transfer Platform (LTP), and DSM columns beneath isolated footings and grade beams. AGI- Fudo, JV constructed over 2,200 DSM columns to depths of 75 feet, as well as 2,650 DGC columns to 60 feet over the course of a four-month schedule duration.

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Application

  • Control static and seismic settlements
  • Provide improved bearing capacity
  • Load Transfer Platform to provide uniform slab support with increased modulus of subgrade reaction

Geotechnical Conditions

  • Liquefaction settlement
  • Deep compressible soils

Project Info:

  • Design-Build Contractor:
    Advanced Geosolutions, Inc (AGI) and AGI-Fudo, JV
  • Developer (tenant):
    Trammell Crow Company
  • General Contractor:
    Layton Construction Co., LLC
  • Geotechnical Engineer:
    NV5 (GeoDesign, Inc.)
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