GPRS was requested onsite at the Joint Airforce Base in North Charleston to perform a Ground Penetrating Radar (GPR) survey. The purpose of this survey was to help identify the location of any utilities or anomalies onsite in order to drill to install beams for awnings covering the fueling station on base. There were large junction boxes on both sides of the filling station with numerous conduits running in and out and the customer wanted to make sure they were not going to damage any of the existing utilities. GPRS was able to identify the location of the existing utilities and mark any other anomalies that may have been in the way prior to drilling. All the utilities that were located with GPR were able to be identified with the depth of the anomalies for the customer prior to boring. This was a huge asset and was able to save the customer valuable time and help prevent any possible damage to unknown utilities.
We used a GSSI (Geophysical Survey Systems, Inc) Ground Penetrating Radar Unit with one specific antenna. This device transmits an electromagnetic pulse through the ground and displays the reflection on a screen for interpretation. The 350 MHz antenna was used on this specific project to scan concrete surfaces as well as grass for utilities. This antenna allows for GPR signal penetration of 4’-6’ in depth. We also used radio detection on this project as a supplement to the GPR. This device detects live power and RF signals underground, allowing us to locate electrical or telephone lines even if they are below the minimum size requirements to be detected by GPR. It also allows us to detect utilities via induction or conduction with an exposed or known surface of the conductive utility.
With the use of this equipment and the experience of GPRS, we were able to help the customer avoid any conflict before drilling to install beams for awnings. GPR was able to help the customer identify areas with potential hazards and save them from any more potential danger of cutting through any conduits that may have live power on them or damaging any other utilities. There are many applications where ground penetrating radar may be applicable.
As a new member of the GPRS family, allowing the ease of mind to our customers and giving them a guideline on what can be done to ensure safety and cost efficiency on their projects is an ever-rewarding experience. Whether it is scanning for utilities to avoid during soil borings, identifying rebar or post tension cables prior to drilling/cutting into a slab or anything in between we at GPRS have all your “Subsurface Scanning Solutions”.
If you feel you may have a project that you could use our services on or may be able to benefit from GPR, you can reach out to me directly with my contact information below or visit our website at WWW.GPRSINC.COM
PROJECT MANAGER | COLUMBIA, SC