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《岩石力学与岩土工程学报(英文版)》 2013-01
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Reactive and non-reactive transport modelling in partially water saturated argillaceous porous media around the ventilation experiment, Mont Terri

Alexander Bond a, , Steven Benbow a , James Wilson a , Alain Millard b , Shigeo Nakama c , Myles English d , Christopher McDermott d , Benoit Garitte e a Quintessa Ltd., Chadwick House, Birchwood Park, Warrington, Cheshire, WA3 6AE, UK b Commissariat à l’Energie Atomique, Yvette, France c Japan Atomic Energy Agency (JAEA), Tokai, Japan d University of Edinburgh, Edinburgh, UK e Universidad Politécnica de Catalunya, Barcelona, Spain  
At Mont Terri Underground Research Laboratory (URL) Switzerland, a specific experiment has been performed in a tunnel, in order to investigate the hydro-mechano-chemical (HMC) perturbations induced in the argillaceous formation by forced ventilation. This experiment has been selected in the international project DECOVALEX to be used for process model development and validation. The numerical simulation of the geochemical response to the ventilation experiment (VE) is the object of the present paper, focusing on the transport of chloride as a conservative species and sulphate as a reactive species. Utilising the validated hydro-mechanical (HM) results from earlier steps of the DECOVALEX task, reactive and non-reactive transport models, incorporating the current understanding of the geochemistry at the site, were successfully constructed for the whole experimental period. The associated parametric and process uncertainty analyses clearly demonstrate that the basic HM understanding must be sound. However, to demonstrate this degree of robustness, the explicit inclusion of process representations of water desaturation, liquid vaporisation, species exclusion porosity, and redox processes, is required.
【Fund】: conducted within thecontext of the international DECOVALEX Project (DEmonstrationof COupled models and their VALidation against EXperiments);; Quintessa Ltd. and University of Edinburgh were supported by the Nuclear Decommissioning Authority (NDA) UK;; CEA was supported by Institut de Radioprotection et de S retéNucléaire (IRSN);; The Japan Atomic Energy Agency (JAEA) and the Institute of Rock and Soil Mechanics Chinese Academy of Sciences(CAS) funded DECOVALEX and participated in the work;; the framework of the EC project NF-PRO(Contract number FI6W-CT-2003-02389) under the coordination of ENRESA (Empresa Nacional de Residuos Radiactivos)
【CateGory Index】: TU45;P59
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【References】
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1 Alexander Bond a, , Alain Millard b , Shigeo Nakama c , Chengyuan Zhang d , Benoit Garritte e a Quintessa Ltd., Chadwick House, Birchwood Park, Warrington, Cheshire WA3 6AE, UK b Commissariat à l’Energie Atomique, Yvette, France c Japan Atomic Energy Agency (JAEA), Tokai, Japan d Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China e Universidad Politécnica de Catalunya, Barcelona, Spain;Approaches for representing hydro-mechanical coupling between sub-surface excavations and argillaceous porous media at the ventilation experiment, Mont Terri[J];岩石力学与岩土工程学报(英文版);2013-02
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