Geopier Rampact® system is extremely cost effective for installation in soils
subject to caving because construction is facilitated using a patented tapered
displacement mandrel, eliminating casing risks and increasing installation
productivity. Aggregate is placed into the displacement tapered mandrel and RAP
elements are constructed by applying direct vertical ramming energy to densely
compact successive lifts of high quality crushed rock to form high stiffness engineered elements.
Through the combination of its patented tapered mandrel and direct vertical ramming action, the Geopier Rampact system laterally improves the matrix soil and increases the lateral stress as the mandrel is driven into the ground. This displacement method is ideal for contaminated sites where spoils or over-excavation is cost prohibitive or not an option. The Rampact elements also provide effective support in relatively shallow deposits of man-made fill and other heterogeneous profiles where casing may be a concern.