GPR is a very common technique that is officially known as Ground Penetrating Radar and GPR imaging. To some, it is also known as GPR scanning or GPR profiling. It goes by many names, but it all means the same thing: GPR imaging is a non-invasive geophysical technique used to create subsurface images of the Earth’s materials and structures. It is usually employed for a wide variety of applications, such as construction, archaeology, environmental assessment, utility locating, and plenty of other reasons.
Why Does GPR Imaging in Seattle, WA Matter?
Seattle is one of the most beautiful locations in the country, but there are many sights and wonders to behold right below the ground’s surface. In order to make sense of what is below our feet, GPR imaging is needed.
How Does GPR Imaging Work?
As you can imagine, GPR imaging has to be done correctly because accuracy is definitely key in this type of work. This is what the process of GPR imaging looks like, from beginning to end.
GPR operates by sending electromagnetic pulses (which are usually transmitted in the microwave frequency range) into the ground or other materials and then recording the reflected signals. Similar to radar, it is essentially reading what bounces back when pulses are sent into the earth. The time it takes for the signals to return and their strength provides information about the composition and depth of subsurface features.
Antenna and Transmitter
GPR systems always consist of a transmitter antenna that will emit the electromagnetic pulse and then a receiver antenna that further detects the reflected signals. These antennas are typically placed on the ground surface, depending on the application.
The equipment used in GPR imaging then collects the data by transmitting the electromagnetic waves into the ground and then measuring the time it takes for the waves to bounce back and return to the receiver. The reflected signals vary depending on the different properties of subsurface materials, such as soil, rocks, water, buried objects, and more. It gives a good indication of what is underground.
The collected data is then processed to create a cross-sectional image of the subsurface. The resulting GPR profile or image is typically displayed as a series of radar-like cross-sections that show the depth and nature of subsurface anomalies.
Geophysicists and experts analyze the GPR images to interpret the subsurface features. They can identify buried objects, geological layers, water tables, utility pipes, voids, and more.
Why Use GPR Imaging?
What are the most common causes that call for GPR imaging?
Perhaps more commonly, GPR imaging is used to detect utilities like pipes and buried cables before building in order to avoid damaging them.
GPR is used to locate buried artifacts, structures, and archaeological features without the need for excavation.
GPR helps assess soil and groundwater contamination, identify buried tanks or waste, and study hydrogeological conditions.
Scan2Core Can Provide GPR Imagine With Efficiency And Professionalism
GPR imaging is a valuable tool for non-destructive subsurface investigation, providing crucial information for a variety of fields and applications. But it must be done correctly. When you call upon the experts at Scan2Core, you are guaranteed professionals who will get the job correctly and on time with total ease. Call us today so you can schedule your appointment.