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How Geopier® Ground Improvement Works


Geopier Rammed Aggregate Pier installation process Geopier introduced the Rammed Aggregate Pier® (RAP) technology to the industry in 1989 as an Intermediate Foundation® solution that cost clients 30 to 50 percent less than deep foundations. 

Our RAP ground improvement technologies are constructed by applying direct vertical ramming energy to densely compact aggregate to form high stiffness engineered elements and increase the lateral stress that improves surrounding soils. This process provides superior support capacity, increased bearing pressure (up to 10,000 psf), and greater settlement control for all soil types.   
Find out more about the Advantage of Geopier RAPs  |  Watch RAP Installation Video

As Geopier made a global expansion, we expanded our ground improvement technologies to include rigid inclusions, slope reinforcement and rail subgrade stabilization to meet every day geotechnical challenges worldwide.

Geopier rigid inclusions are ground improvement elements used to transfer loads through weak, compressible soils to deeper underlying competent soils. Our rigid inclusions are comprised of plain concrete, aggregate/grout mixture or cement-treated aggregate. Geopier rigid inclusions are used to increase bearing capacity (up to 12,000 psf) and minimize total and differential settlements in soft soil profiles, such as peat or organics, soft silt, or soft clay.   
Find out more about the Advantage of Geopier Rigid Inclusions | Watch Rigid Inclusion Installation Video




Want Geopier to take a second look at a project? 
With over 10,000 projects completed, Geopier continues to be the best solution for your project. With decades of research and global experience, our solutions help you save significant cost and time savings across a wide range of applications. Request a complimentary project review to ensure you are maximizing your project's timeline and budget.


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  Using Geopier Ground Improvement technologies and systems allow for:

  • Conversion of deep foundation/structural slab projects to shallow spread footings and slab-on-grade construction.
  • Increased allowable bearing pressures up to 100% (often to 6-9 ksf)
  • Optimization of footings sizes and reductions in steel and concrete costs.
  • Significant reductions in foundation and slab construction durations to meet schedule demands.
  • Significant reductions in total and differential settlements to meet project requirements.
  • Significant reductions in settlements associated with liquefaction.
  • Increased shear strength to alleviate global stability concerns.
  • The ability to construct adjacent to existing buildings and utilities.



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