Subsurface Void Measurement Surveys

We are often being asked to identify the exact position and extent of underground tanks and voids that have been located above-ground or hidden behind structures. It is imperative that accurate information is provided to pre-empt potential planning and environmental hazard issues.

Conventional Survey techniques can be costly, dangerous to undertake and time consuming and in many cases not practical or possible.

We can survey and position these voids and cavities remotely using a C-ALS Cavity Monitoring System and produce a 3D point cloud, surface model, volume, sections or AutoCAD points output.

C-ALS, Cavity Monitoring System

Is a self-navigating, ‘motorised’ robotic probe which is designed to enter and survey voids and cavities.

With a diameter of just 50mm, the unit can be deployed into the cavity from where its miniaturised laser scanner measures the three-dimensional shape of the void together with its surface reflectivity.

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