Geopier’s GeoSpike℠ system is a patented, low-cost method that will reinforce soft soils and provide a high strength, superior level of performance without removing railroad tracks, ties or ballast.
The GeoSpike system is comprised of a set of polymer shells, installed by licensed Geopier crews, between rail ties. Aggregate is then placed within the confining shell and compacted. The dynamic loads from the passing rail cars arch through the ballast and are effectively transferred through the GeoSpike down to a stronger bearing layer.
This is a quick, intermediate solution that will eliminate the need for over-excavation-based subgrade repair. It has the ability to safely strengthen railway subgrades while minimizing downtime to rail operations.
Similar to other Geopier Rammed Aggregate Pier® solutions where direct vertical ramming energy compacts high-quality aggregate to form high stiffness elements — GeoSpike provides support capacity, increased bearing pressure and settlement control.