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We undertake underground utility mapping to provide projects with up to date, accurate information relating to underground services. These typically include communications (BT/Virgin media etc), Water, Gas and electricity. . The depth of investigation will depend on the site, but will usually be between 2-3m. Utility mapping is efficient when a combination of techiques is used.
This has become the accepted method/technology for finding buried metal cables and pipes. By using a generator to induce a signal along a utility, the signal can be traced to provide reasonably precise locations.
Ground penetrating radar is a nondestructive geophysical method that produces a continuous cross-sectional profile or record of subsurface features, without drilling, probing, or digging. Ground penetrating radar (GPR) profiles are used for evaluating the location and depth of buried objects and to investigate the presence and continuity of natural subsurface conditions and features.
Ground penetrating radar operates by transmitting pulses of ultra high frequency radio waves (microwave electromagnetic energy) down into the ground through a transducer (also called an antenna). The transmitted energy is reflected from various buried objects or distinct contacts between different earth materials. The antenna then receives the reflected waves and stores them in the digital control unit.
Used in conjunction with a radio detection device, it can provide useful information to determine non metallic services.
Assist with the location of large non-metallic pipes and conduits like sewers or drain runs.
