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Utilities Business Review | Wednesday, May 29, 2024
GPR fields like standard locating equipment and a qualified locator can easily integrate GPR into any procedure.
FREMONT, CA: Ground penetrating radar (GPR), a vital part of that toolkit, can help keep the professionals using it healthy and happy. Early systems were big, complicated, and needed a lot of power. Because of this, they were only suitable for geological exploration. The digital revolution changed technology after years of development and customer feedback; the locating system was small, light, and easy for a single operator to set up. Even now, improvements are still being made to the technology and the best practices. GPR works by sending low-level pulses of RADAR energy into the ground and timing how long it takes for any reflections to return to the antenna.
The pulses are sent out hundreds of thousands of times per second. They are used to make an image of underground reflections in real time. The FCC has tested and approved that the emissions from GPR systems do not harm people or equipment. With training, an operator can quickly determine where a utility is, how deep it is, and sometimes what kind it is. GPR doesn't need to add a sonde or any other signal to the utility line; it can find metal and non-metal pipes and underground storage tanks. GPS is easy to connect to systems to help map and make deliverables. It will help the economy and make the workplace safer for workers and the public.
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GPR is used in the field in a way that is similar to how traditional locating tools are used. It makes it easy for a trained locator to add GPR to any procedure that is already in place. Because the technology works in real-time, the user can mark in the field and save the data with GPS locations so that it can be stored and used to make reports. Damage caused by insufficient subsurface utility data is a serious threat to construction workers and the public. It causes roads to be closed for longer than expected and damages essential infrastructure businesses need.
GPR makes it more likely that workers will get hurt when a car hits a utility or when they are working on the utility that got hit. The SUE professional must ensure that damage prevention is the primary goal of every project. Locates that are confirmed in more than one way is much better and more reliable. GPR is great for finding challenging targets for pipe and cable locators to see and ensuring utilities are there. It can include abandoned utilities and subsurface features like sinkholes, voids, boulders, and rock ledges, which can cause the project to take longer and cost more than expected.
There are clear safety benefits to adding GPR to the list of tools for locating. Still, many companies also find that adding technology to their business suits their bottom line. The price of GPR systems has decreased significantly, and they can often pay for themselves in as few as a few jobs. They save money on damage costs and bring in more from scanning services. As many project stakeholders know that good data on where utilities are can save money, they are increasingly making GPR scanning a requirement for many projects.
GPR gets used in all parts of a construction project, from figuring out the initial cost to finding ledges or embedments that were already there to guiding excavation to QA/QC documentation of the finished work. A company that uses a complete toolkit with GPR can add value in every situation. In today's highly competitive business world, a key differentiator for many companies is a locating kit that includes GPR and is used by a trained professional locator. All signs point to the SUE industry being on the verge of skyrocketing growth in the next few years, driven by more public investment. They will use all their tools, including GPR, to their full potential.
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