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A Practical Guide For Underground Services Location and CCTV Drainage Surveys
GPR (Ground Penetrating Radar)
| GPR does NOT trace services,
but indicates the presence of voids, disturbed ground, trenches, pipes
and cables under the surface. GPR is an echo sounding method where a transmitter/receiver is passed over the ground under investigation. It is effective at mapping metallic and non metallic services. It is of limited use in conductive ground ( e.g. wet clay) or through reinforced concrete. It can give a comprehensive image of the sub surface including service depths, trench compaction and pavement construction thickness. NB : GPR does not identify a particular service, only the likely location of a pipe or cable, and is best used in conjunction with radiodetection where possible. |
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Last Updated Monday, August 8, 2005 15:58
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Designed By
Peter Lee
Material Copyright 2001 - 05
Laser Surveys Ltd
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