Pyramid Geophysical Services conducted a geophysical investigation at a facility in Asheboro, NC where the client had indicated that a water line had leaked/ruptured beneath a concrete slab-on-grade structure. The rupture resulted in visible water penetrating upward through seams in the concrete slab. Exploratory cores … [Read more...]
Carlsbad Caverns – Resistivity Mapping for Caves
Pyramid Geophysical Services performed a geophysical investigation for the National Park Service at Carlsbad Caverns National Park in Carlsbad, NM. The survey used electrical resistivity mapping (ER) to look for potential underground caves or caverns near an area designated for the construction of an underground … [Read more...]
Geophysical Investigation to Identify Buried Infrastructure and Waste
Pyramid Geophysical Services conducted a geophysical investigation across a project site that contained buried waste and exhibited the potential to contain buried infrastructure such as former foundations. Our client wanted to delineate the lateral extent and depths of any buried waste and locate any former foundations … [Read more...]
Concrete Inspection Using High Frequency Ground Penetrating Radar
Pyramid Geophysical Services completed a ground penetrating radar (GPR) concrete inspection survey in a municipal parking garage in North Carolina. The purpose of the survey was to locate rebar and post tension cables within the concrete floor slab of one of the parking decks. Geotechnical engineers were planning to … [Read more...]
Geophysical Mapping of a Sinkhole
In January 2015, Pyramid Geophysical Services conducted a geophysical investigation at an open sinkhole (ground collapse) in a dry retention pond for a client at their remediation site in Tennessee. The survey was conducted to determine the lateral and vertical extent of the sinkhole feature in the subsurface, and to … [Read more...]
