Ground Radar Surveys
Ground Penetrating Radar (GPR) is a non-destructive surveying method used to map sub-surface features. Common applications are in the identification of utilities, pavement thicknesses, rebar, concrete structures, and voids. Vision Survey’s expertise in the application of the latest radar technology to all project environments ensures that we deliver accurate and comprehensive survey findings.
The Technology
The principle of radar detection is that a radiowave travelling through a medium is reflected once the material composition changes, e.g. a plastic pipe. The reflected radiowave is received by an antenna and is passed to the control system of the unit and results in an on-screen display. This allows the surveyor to determine findings on site and to work intelligibly to locate trends as part of a grid based survey system. Our GPR instrument offers dual frequency antenna at 250 MHz and 700 MHz, providing simultaneous real time results of deep and shallow targets on the same screen to locate the exact position of pipes and cables.Applications
- Utility Detection
- Concrete/Pavement Imaging
- Building Structure Analysis
(Floor and Wall) - Underground Structure Mapping
(Storage Tanks and Voids) - Directional Drilling Feasibility Studies
- Pre-construction Risk Analysis
The Benefits
- Safe surveying method of mapping sub-surface features
- Non-invasive technology minimises disruption and associated elements of risk
- Fast and reliable surveying solution
- Negates the requirement for plant on your site
- Equipment is compact and accessible to most environments
- No residual effect on your site
- Technology can be applied to many site survey requirements
