Class A prediction of a mine-by test in an overconsolidated mudstone

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/9338

Title:	Class A prediction of a mine-by test in an overconsolidated mudstone
Author:	Garitte, Benoit; Vaunat, Jean; Gens Solé, Antonio; Vietor, Tim
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
Abstract:	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.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines::Investigació minera -Gallery excavation -Hydro-mechanical coupled analysis -Mine-by test -Mudstone -Mines -- Programes d'ordinador
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Document type:	Article - Published version Conference Object
Published by:	AEDIFICATIO PUBLISHERS
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