Burrow Surveyor
Burrowing is becoming an increasing threat to infrastructure in the Netherlands. With growing populations of badgers and beavers, issues related to underground excavation are on the rise. These animals often create extensive tunnel systems that are not visible from the surface. Such burrowing can compromise soil stability, posing risks to the safety and functionality of railways, embankments, and roads. In many cases, problems are only discovered once damage, such as ground subsidence, has already occurred. That’s why it is crucial to assess the size and location of burrow systems at potential risk sites as soon as burrowing activity is detected.
Share this project
The Burrow Surveyor is a subterranean drone developed by The Fieldwork Company, designed to map underground tunnel networks. Equipped with an advanced camera and various sensors, the system collects crucial data in a practical and non-invasive way. This information can then be used for risk assessments related to soil stability and structural integrity, helping to determine necessary measures.
Operating under the working title RobotMol, earlier versions of the Burrow Surveyor have already been deployed for inspections at multiple locations across the Netherlands. Continuous development is driven by field experience and client feedback, ensuring ongoing improvements and optimization.
Data Output & Applications
The collected data is used to generate a detailed 3D model, which can be integrated into the Dutch digital elevation map (Actueel Hoogtebestand Nederland). This provides a clear visualisation of the location and extent of burrow systems, allowing clients to conduct precise risk assessments. For example, railway operators can accurately determine the distance between a badger burrow and railway tracks—critical information for assessing potential risks to infrastructure.
The video above provides an overview of an inspection in action and showcases the final 3D model.
Specifications
- Suitable for tunnels with a diameter of 20 cm or larger
- Capable of mapping depths of up to 9 meters
Client
n.v.t.
Involved part(ies)
ProRail
