Geopier Foundation Company West - 503.640.1340

GEOPIER FOUNDATIONS

Geopier elements are densely compacted aggregate piers that improve the soils in which they are installed. The piers are constructed with patented equipment in pre-drilled cavities (usually 400 to 800mm diameter) and can resist both compression loading and uplift forces.

The piers can range from 1.5m to 7.5m in length and typically achieve an improvement in soil bearing capacity ranging from 300 to 500kPa. With the use of casing, Geopier elements can be constructed below ground water in all soils ranging from peat to loose clean sands to soft clays.

The combination of constructing the piers in pre-excavated cavities and the lateral stress build-up that results from the patented ramming equipment, are the key elements that set the Geopier system apart from all other aggregate pier or stone column systems.

The Geopier foundation system should be considered:
  • • Where overexcavation and replacement is required.
  • • When deep foundations such as piles or caissons are required.
  • • Where settlement control is essential.
  • • In earthquake-prone areas.
  • • On sites with restricted access or overhead.
  • • For building additions and expansions.
  • • For poorly compacted fill, debris fill, and organic fill.