To keep up with the high demand of rapid paced jobs, you need to have a good plan. But the unknown is impossible to plan for. The Accu-Scan GPR team can show you what’s “there” before you start. To keep price down and productivity up, you will need to keep moving forward without delays or even worse, accidents. Let us take the guessing out of the equation.
Using GPR in the field before construction benefits both safety and efficiency. GPR is a real time technology that can be deployed in just minutes with highly accurate horizontal positioning and depth information. GPR surveys provide essential information for a solid understanding of the underground environment. With more utility location information in hand before digging crews and facilities are better protected and less likely to hit utilities. It can limit both the extent of excavations to find buried objects and help prevent damage to utilities from excavating. GPR provides valuable information of the underground by identifying encapsulated mud pits or voids beneath the ground. This could prevent accidental placement of a rig over a hazardous area making the rig unstable. The subsurface information like soil properties, depth to rock, boulders, water table, and unknown buried objects are also of great importance before executing projects and knowing more about the underground before digging.
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As a high-end residential contractor, it is imperative that all precautionary measures are taken. I have hired Accu-Scan GPR on multiple projects to scan walls before demolition, to locate buried splice boxes, or even to check the extent of moisture damage on a wood floor. Each time, their findings were spot on. – Max Michel, President, M2 Contracting
What creates GPR reflections?
Ground penetrating radar (GPR) measurements, as shown here, detect reflected or scattered energy. In simple terms, our machine send a safe electromagnetic wave through the media (concrete, dirt, wood, etc.). And just like most radars, once it senses an object with a different dielectric, it will then send back a signal in the form of a hyperbola on the screen. There is a lot of different situations that would create what is referred to as “noise” which is a false signal returned back to the machine. This is where a technician with a trained eye would have to decipher the many signals that will appear. Unfortunately, many GPR users are not familiar with the more knowledgeable aspects of radio fields and material properties.
Map and mark out utilities installed in metallic and non metallic pipe, including electric, sewer, gas and CATV/ telephone.
Locate voids/ sink holes.
Locate cesspools and leech fields.
Find plumbing and electric lines in a wall or floor prior to demolition.
Locate rebar and post tension cables prior to coring to assure the structural integrity of the building will not be compromised.