Sinkholes and Karst
GeoSystems has vast experience in evaluating, designing for and remediating sinkholes in the Delaware Valley.
With the passage of geologic time, the solubility of carbonate rocks such as limestone and dolomite, results in the enlargement of small natural joints and fractures into open channelways. Intersecting fractures can become enlarged into chambers and caverns, and the soil-bedrock interface can become pinnacled. The soil cover is subject to movement into the bedrock voids, aided by downward percolating water, resulting in soil voids which migrate toward the surface. When the “roof” of a soil void nears the ground surface, a collapse of the roof can occur, resulting in a sinkhole.
GeoSystems reduces the risk of damage to structures by utilizing compaction grouting, gradebeams, structural slabs, micropiles and appropriate construction of utilities and stormwater facilities.