Ground Penetrating Radar
Ground Penetrating Radar locates man-made objects underground and can accurately and nondestructively see through solid materials. Ground Penetrating Radar can see through asphalt and concrete to detect subsurface objects that need to be avoided when cutting, drilling, or excavating. The objects include reinforcing steel, electrical conduits, underground utilities, storage tanks and other environmental hazards, among various other less frequent applications. Ground Penetrating Radar uses a non-invasive electromagnetic ground penetrating radar technique which has the highest resolution of any ground penetrating radar method. Ground Penetrating Radar responds based on changes in electrical conductivity properties of objects in the ground (or in concrete).
Ground Penetrating Radar works in a safe and reliable manner. There is no radiation hazard associated with Ground Penetrating Radar, so there is no need to clear the areas around where the radar work is being done. Ground Penetrating Radar is also a relatively fast process. Our findings are made in real time, without processing data and bringing it back to the job site.
GPRS is able to provide a permanent record of the Ground Penetrating Radar findings. We can create AutoCAD files or GPS maps of areas scanned to show the path, location, and depth of underground facilities/anomalies on site.
GPRS has a variety of Ground Penetrating Radar antennas to suit your specific application. For concrete scanning, we use the following antenna frequencies; 2.0 GHz, 1.6 GHz, 1.0 GHz. For ground based applications we use 400 MHz, 270, MHz and 200 MHz. We also have the capability to rent equipment if there is an application that calls for an antenna that we do not have. Scan depth is based on the frequency of the antenna being used. Our standard concrete antenna is a 1.6 GHz – it is capable of scanning up to 22” deep in cured concrete. Our standard ground based antenna is a 400 MHz – the depth effectiveness of this antenna varies depending on soil composition and what part of the country the work is in. Dry sandy soils are more suited for GPR scanning than wet clay soils, but our technicians are familiar with their regions and will be forthright regarding what your expectations should be for depth.
Utilizing Ground Penetrating Radar takes a heavy burden of the shoulders of contractors, construction managers, utility companies, and anyone who is going to be cutting or drilling in concrete or excavating in the ground. By utilizing ground penetrating radar, unfortunate surprises when conducting these operations, are minimized and peace of mind is enhanced. Contact your local representative today.