Ground penetrating radar is used to detect unseen objects in the ground, concrete structures, and other non-metallic materials. It works very similar to a fish finder. It is used by emitting a pulse of radio waves into the test material, and it records the echoes as a picture similar to the one above. GPR is used in many areas such as construction, roadways, archaeology, mining, and more.
Construction companies often request GPR services. Before digging an area for building foundations, they need to know what is underground. GPR is able to identify if there are utility wires and pipes they need to avoid. Construction companies also test during construction for quality control purposes. They want to make sure everything is done correctly. If structural rebar was placed in a concrete structure, they will use GPR to see if the rebar was placed correctly. Another area where construction companies use GPR is to identify electrical wiring and pipes in walls and floors of buildings which they are adding on to.
GPR is increasingly being used to test roads for thickness, voids, and cracks beneath the surface. Voids and cracks in roadways usually lead to potholes, which nobody likes. Through the use of GPR, workers are able to identify what areas of road need repaired before there is a pothole.
Archeology would be very expensive if the only way they were able to identify historical areas was through digging into the ground. GPR maps the subsurface, and archeologists are able to identify areas of interest without digging. GPR is used to identify artifacts, historical building remains, unmarked graves, and historical sites.
GPR can be used to address numerous challenges associated with mining. Structural mapping, and tunneling and safety hazards can be identified through the use of GPR. Miners benefit from the ability to see into the ground; they can avoid loose rock collapsing and structural safety hazards.
Hello! My name is Melanie Boop, and I am the Communication Specialist at AER.