Ground Probing Radar
Ground penetrating (or probing) radar (GPR): Mapping the underworld
Modelling the real world
Ground penetrating (or probing) radar (GPR)
There are many benefits that come from a well-executed utility survey including:
- The safety of the workforce and public
- Minimising utility damage
- Minimising project delays and reducing construction costs
- Cost savings associated with accidents, damage and delays
- Understanding the constraints for designing and planning
- Saving costs by producing as-built records
- Promoting good relationships between client and surveyor.
GPR is an invaluable survey tool used by our Buried Services Survey crews on a daily basis. Used in conjunction with other non-intrusive methods of survey, such as Electromagnetic Location (EML).
By picking up contrasts and changes in ground conditions and materials, GPR can often help locate non-metallic utilities that cannot be detected using EML techniques. It can also be used to locate other buried features, showing up as anomalies, such as old foundations or hidden voids.
The collected data is transferred to an office environment for analysis. This involves post-processing both the 2D (vertical scans) and the 3D coordinate data allowing complicated underground environments to be more accurately understood.
Reducing Costs
GPR is one of the tools used to help reduce the cost of forensic investigation work. This is a non-intrusive method of surveying. We can Investigate underground utilities such as concrete, asphalt, metals, pipes, cables or masonry, without the need to drill holes or dig trial pits.
Improved Safety
By seeing the hidden hazards prior to undertaking physical or destructive investigations; breaking ground or undertaking remediation or demolition work.
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