What is an Underground Utility Survey?
Underground surveying is a type of surveying used to measure and map all features that occur below the surface of the earth.
Mapping using data collected from an underground utility survey reduces project planning time, as well as minimises the risk of costly adjustments to the design or mistakes further down the line.
Contractors using thorough, detailed, and accurate utility survey maps are able to work confidently prior to and during excavation, as well as provide the right protection for their workers as per health and safety regulations.
This type of surveying helps to map the location and depth of objects such as cables, pipes and tunnels. It can also be used to locate subsidence, or the movement of the earth’s surface.
How is Underground Survey Done?
Underground surveys are conducted from ground level with non-intrusive techniques. Advances in specialist mapping technology transmit an electro-magnetic or radio wave pulse into the ground and the data captured is analysed by a software to determine the position of utilities, such as plastic pipes, structures, voids and any anomalies. Technology used includes the Ground Penetrating Radar and Electromagnetic Equipment.
The Ground Penetrating Radar (GPR) and Electro-Magnetic Locators (EML) are the main technologies used to obtain and analyse the necessary underground data for planning and executing your project. Notably, underground services also go hand-in-hand with drain surveys and CCTV surveys with robotic cameras, concrete and rebar scanning, and full digital imagery. Our specialist surveyors conduct their underground examination in real-time with camera images and provide full digital imagery using on-site specialist software. From our extensive underground surveys, you will be provided with a complete and detailed technical report, 2D CAD drawings and 3D models ready to proceed with your construction project.