Subsurface Imaging
Accurate Subsurface Images
| Locating Pipes and Cables |
| NEW Link to discussion forum |
| One key application for Radar is locating pipes and cables. Radar works when cable locators don’t. Radar will (usually) see all the objects, whether metallic or non-metallic |
This is what Radar sees (as a cross section) The pipes and cables show up as parabolas on the section This image shows the area across the pavement adjacent to a road. These images give depth and position of each service, and it’s depth.
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Its possible to see PVC pipes, though the parabola colours are usually less intense |
| This is an example of “other ” things you can do with GPR.The wider diffractions are air filled channels in a concrete beam, the smaller diffractions are rebar in the concrete
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| T This is a “3D” version of the image above. The left hand part of the image shows the floor slabs. The Right hand side is a poured concrete slab. The project was to explain why the floor slab was settling. This showed that the construction in the two areas was quite different and this explained the reason for the differential settlement
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