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Evergreen Line Rapid Transit (EGRT)

Cement Deep Soil Mixing (CDSM) and Helical Piles

Vancouver, BC

Project Description

At-grade light rail slab and crash wall support, for EGRT light rail transport system. AGI, in conjunction with the GEOR, designed the ground improvement system to reduce seismic lateral spread and uplift displacements. The approach of installing CDSM and helical pile elements was incorporated in lieu of conventional driven piles to provide cost savings to the project and avoid potential issues caused by adverse obstructive material

Application

  • Seismic mitigation
  • Crash wall support and uplift resistance

Geotechnical Conditions

  • Fill and glaciomarine deposits
  • Prevalent obstructions

Project Info:

  • Design-Build Contractor: AGI Foundation Contractors ULC, Canadian subsidiary of Advanced Geosolutions Inc (AGI)
  • Owner: Province of British Columbia General
  • Contractor: SNC Lavalin – Graham Joint Venture (SGJV) Geotechnical Engin

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