Cavity risks: tests and experiments done at the Saint-Maximin experimental and educational platform (60)

On 12 and 13 April 2023, the institute welcomed Cerema and BRGM experts to the Saint-Maximin experimental and educational platform for cavity risks.

The purpose of these days at the centre was to put into perspective the different methods and tools used to inspect and diagnose degradation conditions in underground cavities.

By exploiting the numerous configurations offered by the Ineris underground platform, in particular the geometric and geotechnical configurations, the operators present applied and shared their varied know-how (photogrammetry, ground-penetrating radar, electronic imaging, 3D scanning, etc.) to better characterise and prevent the risks associated with underground cavities.

This collaborative work between the three operators, which is part of a support operation of the Ministry of Ecological Transition and Territorial Cohesion, will provide input for deliberations on the preparation of a future guide intended to provide managers with the essential elements for understanding the different tools and methods used for underground inspection and diagnosis.

Built in an old underground quarry located at the Maison de la Pierre in the town of Saint-Maximin (Oise), the platform makes it possible to do work at scale 1, in realistic underground cavity conditions and in complete safety.