Cover of the thematic file.
Underground cavities: preventing the risk of collapse
Underground cavities and the disruption they can cause are a major risk to development and sometimes to human life. The prevention and management of this risk is based on scientific knowledge developed by BRGM.
A risk for buildings and the population
The formation of a cavity causes a new equilibrium between the elements in the ground. For all types of cavities, damage is to be expected as the mechanical characteristics of the surrounding material gradually decline.
Increasingly accurate and effective methods
At BRGM, researchers are working together to develop new processes to better understand cavities and reduce the risks associated with movements in the terrain.