GeoStabilization International® provided the temporary shoring and slope stabilization for an emergency repair on a public transportation highway in the northeast United States. The stabilization system consisted of more than 5,000 SF of grouted soil nails, geotextile fabric, and a high-capacity galvanized steel mesh surface treatment. The state transportation’s maintenance forces provided the site preparation with their own resources while GeoStabilization provided the specialty contracting to install the stabilization system. With the shoring system in place, the DOT’s forces were safely able to install a stream slope armoring using large diameter riprap. All of GeoStabilization’s work was completed from the active roadway platform allowing alternating traffic on the opposite lane at all times. The project was successfully completed in 2 weeks within the allocated budget.
A variation of karst sinkhole grouting is the grouting of mined coal seams and workings located below existing infrastructure that exhibit the potential to propagate to the surface and cause sinkholes and/or subsidence.