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Geomaterials and Geotechnical Modeling


The activity of the GERS-GMG laboratory focuses on the behavior of geotechnical structures under complex stresses, particularly seismic, and the development of techniques of physical modeling in centrifuges, and, on the other hand, on the optimization of techniques Earthworks and the valorization of previously neglected materials.

Our work aims at improving methods and tools for dimensioning structures in particular for innovative techniques or structures (reinforcement of soil by inclusions, foundations of wind turbines and offshore structures, constructions subjected to cyclic loads, reuse of by-products, sediment, cuttings, etc.), but also to contribute to the reduction of natural hazards (earthquakes, erosion of hydraulic structures, effects of drought), and to the economy of natural resources (water, materials) in the Construction of geotechnical structures.

The research carried out within the laboratory "Geomaterials and Geotechnical Modeling" are in the perspective of "Multi-scale Geotechnics", from the grain to the real work.

Geotechnical centrifuge
Press 100KN
Electronique scanning microscope

The laboratory also contributes to geotechnical expertise and the dissemination of doctrine (training, standardization, drafting of guides).

The geotechnical centrifuge and its complementary equipment is the major test facility in France for geotechnical modeling in geotechnical engineering. It is also used for macrogravity tests on various materials (aeronautics, medical, ...).

[The experimental platform on geomaterials includes the Experimental pole of Mécanique des Sols, which comprises most of the experiments devoted to the hydro-mechanical characterization of geomaterials (including research on fatigue phenomena), the imaging and physico-chemistry cluster for the study of soils at scales between the micrometer and the millimeter leading to the identification of the reactions between the constituents and the environment simulation pole to understand the impact of climate change on the structures constructed.