d for strength formance
The utility detection and mapping industry has evolved, invested in new emerging technology and matured into a dynamic and progressive force
3D gyroscopic mapping of pipework. Using a combination of gyroscopes, inclinometers and accelerometers, self-contained and combined with advanced robotic mobilisation platforms, it is possible to map with great accuracy the position in 3D of pipework, sewers, ducts and tunnels, irrespective of depth, size or material
LiDAR. Lidar can be used below ground in pipes to create three dimensional point cloud data, enabling an internal model of critical infrastructure to reveal distortion, displacement, and structural changes. When combined with gyroscopic mapping capabilities within a single autonomous robotic platform, an extremely useful and powerful asset mapping capability is realised
Radio-frequency identifi cation (RFID) tags. By using pre-programmed intelligent RFID tags, it is possible to tag a buried utility with a device that can then be read by a simple hand held scanner. Information stored can be utility type, material, size, position, depth, date of construction and much more. This enables quick and easy identifi cation of underground infrastructure
Angled side refl ectors
Vacuum excavation. When it is necessary to verify the position and depth of a utility by excavation for absolute accuracy, vacuum excavation can be deployed. This process allows a small excavation by air/water pressurised lance to expose the desired utility, with soil and fi ll sucked away by a vacuum hose. This system is much safer, quicker and requires a much smaller excavation than traditional methods, thus reducing environmental and social impact. Combining this process with a robust utility mapping survey creates the most accurate and robust survey data possible and further minimises disruption by targeting vacuum excavation much more productively
Subsurface utility engineering. This phrase is used as an example of best practice, using many of the above points but importantly includes greater involvement and interaction between client and survey practitioner. It involves pre and post survey meetings, utility record drawing analysis, best practice utility detection and verifi cation, plus suggested methods to reduce the risk of a utility strike via risk management.
Fixing points (footprint) designed to retro-fi t the majority of existing bases
Wayne Webster, chairman of the Utility Mapping Association, said: “Pre-planning, due diligence and using the best and most up to date technology are the keys to obtaining robust utility survey data. This will create trusted utility information to become the norm, avoid site delays and costly redesigns. Using these systems can enable effi cient use of site time with the potential of saving costs, delays and inconvenience to the public.”
esistant… and very, very strong
For further information visit
www.utilitymappingassociation.com
+44 (0) 121 506 4770 traffi c@signfi
x.co.uk www.signfi
x.co.uk
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