Ideal for contaminated sites where excess soil management or over-excavation is not feasible or cost-effective.
Geopier Rammed Aggregate Pier® System (RAP’s) Rampact® System
The Geopier Rampact® system is a cost-effective solution for soils that are prone to cave-ins. Construction is done using a patented, tapered displacement mandrel that eliminates casing risks and increases installation efficiencies. Through the combination of its patented, tapered mandrel and direct vertical ramming action, the Rampact® system improves the soil and increases the lateral stress as a mandrel is driven into the ground. This displacement method is ideal for contaminated sites where excess soil management or over-excavation is not feasible or cost-effective. Rampact® elements also provide effective support in moderately shallow deposits of man-made fill and other diverse soils where casing may be a challenge.
How does GeoSolv do more with Geopier (RAP) than other Ground Improvement Techniques?
GeoSolv’s Ground Improvement Systems involve heavy vertical crowd force, massive vertical ramming energy, and significant lateral stress increase. This action, along with the vertical ramming and heavy crowd pressure with lateral cavity expansion with lateral stress buildup, is unique to GeoSolv and creates unsurpassed system performance. These three factors are essential as they result in a more highly engineered system with improved performance over other ground-improvement approaches. GeoSolv can work with the worst soils: soft clay, loose silt, peat, and uncontrolled fill – not just sandy soils.
GeoSolv offers Ground Improvement Solutions that treat a wider range of soils and offer distinct advantages over other historic ground-improvement systems such as deep dynamic compaction (dynamic compaction), stone columns (vibro replacement, vibro stone columns), vibro compaction (vibro flot) and deep soil mixing (DSM). Contact us today to learn more about the advantages that GeoSolv’s Ground Improvement Systems can offer for your project, or to receive an obligation-free proposal for the use of an Innovative Foundation Solution.
The Geopier Rampact system is constructed by driving a tapered and hollow valved mandrel into the existing soils through heavy crowd force and vertical impact energy. Aggregate (clear stone) is placed within the mandrel and flows into the displaced cavity as the mandrel is retracted. The mandrel is then driven back down, creating a compacted lift. Repeating this action to the surface creates stiff columns of rammed aggregate and results in superior bearing capacity and settlement control through friction without the need for bulk excavation or deep foundation (piling) systems.
Improve up to 10m depths for light-to-moderate loads with 500-800mm diameter elements in sand, silt clay, and fill. The Rampact system can be installed in high groundwater conditions.