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Ground Penetrating Radar (GPR)

Ground Penetrating Radar (GPR) is used to detect subsurface features and objects.

The machine rests on collapsible and highly portable three-wheel cart that is pushed over the surface. A radar signal from an antenna passes into the ground and reflects off objects under the ground. The information is displayed on a screen providing real-time views. Mapping subsurface utilities: GPR, sondes, cable/pipe locator and CCTV is used to create a “map” of underground services. One instrument on its own cannot provide the accuracy needed for such a survey.

Ground Penetrating Radar

Possibilities with GPR

  • Environmental Impact Assessments: locate sub-surface objects, water table mapping
  • 2D & 3D imaging
  • Locate pipelines, cables, ground disturbance, tanks & voids
  • Roads: evaluate base & sub-base levels, voids, layer thickness
  • Forensics: locate clandestine burials, hidden caches of weapons
  • Geology: mapping sand & gravel beds, bedrock horizons
  • Pre-development: Before excavation: location of pre-existing disturbed ground, locate municipal services, fibre optic cables, etc
  • Agriculture: soil conditions and bedrock
  • Archaeology: non-invasive investigation of site area, reduces investigation time.
  • Concrete studies; locate re-bar spacing and depth in concrete.
The image below shows a pipe (inverted U) below the surface
The image below shows a pipe (inverted U) below the surface

Equipment & Methods

Find out more about our detection and inspection equipment and working methods: