Class A prediction of a mine-by test in an overconsolidated mudstone
Tipo de documentoTexto en actas de congreso
Fecha de publicación2009
Condiciones de accesoAcceso restringido por política de la editorial
In this paper, 3D HM computations are performed to predict the rock response during the excavation of a new gallery (mine-by test) realized in Opalinus clay at the Mont- Terri laboratory, Switzerland. In a first part, previous mine-by tests in similar materials are reviewed: the CLIPEX experiment in Mol (Belgium, Boom clay), the MODEX-REP experiment in Meuse Haute Marne laboratory (France, Callovo-Oxfordian Clay) and the ED-B at Mont Terri (Switzerland, Opalinus Clay). Possible relevant processes are identified. Secondly, the hydro-mechanical formulation used to reproduce the test is described. Thirdly, a 3D HM model adapted to the investigated mine-by test is set up. This model accounts for the anisotropy of the initial stress state and hydro-mechanical material properties (stiffness and permeability). Finally, the influence of anisotropy of stress state and stiffness are investigated by means of a sensitivity analysis.
CitaciónGaritte, B. [et al.]. Class A prediction of a mine-by test in an overconsolidated mudstone. A: International Conference on Computational Methods in Tunnelling. "2nd International Conference on Computational Methods in Tunnelling". Bochum: AEDIFICATIO PUBLISHERS, 2009, p. 457-463.
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