What are the benefits of GPR technology?
The use of locating technologies such as GPR assist greatly in improving our understanding of what lies beneath the surface of the ground and other structure and increasingly shows quantifiable benefit in improving the positional accuracy of subsurface infrastructure.
Subsurface Utility Engineering (SUE)
3D Data Capture
Legislation & Standards
ROI of up to $21 per $1 invested
The use of GPR feeds important data into subsurface utility engineering processes to improve the reliability of subsurface information and geolocation accuracy of buried utilities. There is growing evidence that the use of SUE in infrastructure projects has a positive return on investment.
U.S. Department of Transportation
Ontario Sewer and Watermain Contractors Association
University of Toronto
Operational Benefit Of Real-Time Sampling?
Whilst conventional GPR systems utilizing old designs are still successful, a modern RTS-based GPR system offers several advantages.
Why would you invest in a conventional GPR system given the clear advantages of RTS?
A note on specifications
Apart from practical considerations such as size, weight, power consumption and ruggedness, GPR specifications can be somewhat confusing. The key is to know which parameters affect performance or data quality and therefore impact your results.
Often expressed as effective number of bits, or in dB, where 16-bits equals 96dB. This parameter has a direct impact on the penetration depth and a higher number is better.
Nowadays, vehicles are commonly used to facilitate GPR surveys, even over rough terrain. It’s important that the speed of the GPR system matches the survey speed, otherwise the density of data must be reduced, which will compromise results.
Center frequency and bandwidth
These two parameters determine the resolution of the system, i.e. the information content of the gathered data. Higher numbers give more information, but at the expense of depth penetration.
Ease of use
Or user friendliness; not a line item you generally see since it does not directly impact results. However, over the years we’ve encountered many clients who complain about ruining a survey, due to complex settings that they’ve managed incorrectly. An RTS-based system is much more user-friendly and easier to train on and learn, so minimizes such risk.