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Title:
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Modelling a gas flow experiment in Mx80 bentonite;
Modélisation d’un essai d’écoulement de gaz dans la bentonite Mx80
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Author:
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Puig Damians, Ivan; Olivella Pastallé, Sebastià; Gens Solé, Antonio
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques |
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Abstract:
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A gas injection test performed on compact bentonite was carried out at the British Geological Survey. The test is composed of two stages (i.e. hydration followed by gas injection). After gas breakthrough and a period of gas flow through the sample, the injection pump was stopped whilst stresses and pore pressures were continuously monitored. A 3D numerical model has been developed to simulate the gas injection test and to achieve similar gas pressure responses. After sensitivity analysis of the model, a satisfactory calibration ap-proach was possible using both hydraulic and coupled hydro-gas-mechanical model assumptions. |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
-Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament dels residus
-Àrees temàtiques de la UPC::Energies::Energia nuclear
-Radioactive waste disposal in the ground
-Bentonite
-Hydraulic 3D model
-Gas flow
-Mx80 bentonite
-Bentonita
-Residus radioactius -- Emplaçament |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE)
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