Pyramid Geophysical Services

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Underground Storage Tank (UST) Investigations Using Geophysics

EM61 contour map for UST

Pyramid Geophysical Services has performed a multitude of Underground Storage Tank (UST) investigations throughout North Carolina using geophysical methods. These metallic USTs are often left behind at old fuel service stations that have closed down. Old home heating oil tanks are also often left in the ground after … [Read more...]

Filed Under: Case Studies Tagged With: EM, geophysics for UST, GPR, north carolina geophysics, Underground Storage Tank, UST

Slope Stability Analysis Using Geophysics

void under road

Pyramid Geophysical Services was contracted to assist in a comprehensive evaluation of subsurface geologic and hydrogeologic conditions along a causeway in South Carolina. The causeway was experiencing slope failures and ground collapses. These failures were thought to be the result of both the presence of buried … [Read more...]

Filed Under: Case Studies Tagged With: electrical resistivity, electromagnetic, GPR, ground collapse, MASW, seismic, slope geophysics, slope stability analysis, voids

Ground Penetrating Radar (GPR) Investigation of Shallow Bedrock

gpr bedrock

Ground penetrating radar (GPR) is an effective tool to rapidly image shallow bedrock under the right conditions. This project was conducted along a proposed pipeline alignment where geotechnical boring logs showed variable bedrock depth along the entirety of the alignment. The alignment consisted of a variety of ground … [Read more...]

Filed Under: Case Studies Tagged With: bedrock investigation, GPR, GPR rock, ground penetrating radar

GPR Investigation of Sub-Slab Voids

GPR Void Map

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...]

Filed Under: Case Studies Tagged With: geophyics, GPR, ground penetrating radar, north carolina, radar, sub-slab voids, voids

Concrete Inspection Using High Frequency Ground Penetrating Radar

concrete inspection, GPR, rebar mapping, concrete reinforcement mapping

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...]

Filed Under: Case Studies Tagged With: concrete inspection, GPR, ground penetrating radar, rebar

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Certifications and Affiliations

GSA Contract

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AFFILIATED COMPANIES

LPT Systems

Provider of lubrication, pump and tank systems and equipment, sales and service

Pyramid Environmental Services

Pyramid Environmental is our Parent Company

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503 Industrial Avenue, Greensboro, NC 27406

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