8, Mar 2024
Ground Probing Radar

Ground probing radar (GPR) can help professionals locate telecommunication lines or academics search for archaeological artifacts – all without breaking the surface. This cost-effective, mobile and noninvasive technique relies on electromagnetic radar pulses to survey the subsurface of soil, concrete, rock and ice. It delivers highly accurate data about the location, dimensions and depth of metallic and non-metallic objects and voids in construction layers. Frequencies can be regulated for maximum penetration and resolution, and data collection at the site is quick and easy.

Exploring the Potential of Ground Probing Radar in Survey Applications

Radar signals reflect off subsurface features at different times depending on the conductive and dielectric properties of the material. Voids and discontinuities such as cracks, rebar, water infiltration and changes in soil composition produce distinctive reflections that can be measured by GPR. Using the time difference between two reflectors, the GPR system can calculate the size of a void.

In addition to its utility in the identification of rebar, plumbing and other items embedded within concrete, ground probing radar can also locate underground hazards such as buried pipes, electrical wires and gas and oil pipelines. It can also reveal the presence of moisture and voids, such as gravel pockets and cavities, in the ground. In many cases, interpreting the results of a GPR scan requires some professional guidance and training.

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