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L’usage du sous-sol à travers les âges et les aléas et risques associés : vers la 4e dimension ?

Abstract : Since prehistoric times, the underground has been exploited for various uses: housing (caves), production (mines), protection (crypts, shelters), storage (cellars), etc. In the contemporary era, after a dazzling development in the two horizontal dimensions, the city launched itself into the challenge of verticality, particularly thanks to new materials issued from the subsoil (steel, concrete, glass). During this time, the underground has remained as an environment dedicated to the extraction of raw materials, while it conceals important development possibilities. Examples, however, are beginning to gain momentum and highlight the potential of this hidden territory. But the main realizations still consist to transfer or extend surface activities downwards. By rethinking the functioning of the city of the future around its substratum, will the 3rd Millennium finally see the appropriation of the basement as a true 4th dimension? To do this, account must be taken to the security opportunities it offers, and the role it can play in the energy transition (geothermal energy, energy storage) or climate change (water storage, air conditioning). There are many examples of recent uses of the underground for transport, distribution networks, storage of energy or waste, etc. The mission of the Ineris is part of this perspective by endeavoring to assess the risks induced by these modes of underground use. This can only become a stakeholder in future urban projects if the risks induced at different scales of the territory by theses new underground structures are understood and controled.
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Submitted on : Wednesday, December 22, 2021 - 11:53:43 AM
Last modification on : Wednesday, December 22, 2021 - 11:53:44 AM


  • HAL Id : ineris-03500466, version 1



Philippe Gombert, Stéphane Lafortune, Pascal Bigarre. L’usage du sous-sol à travers les âges et les aléas et risques associés : vers la 4e dimension ?. 16e Congrès international AFTES "Le souterrain, espace d'innovations", Association Française des Tunnels et de l'Espace Souterrain (AFTES), Sep 2021, Paris, France. ⟨ineris-03500466⟩



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