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Title:
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Coupled thermo-hydraulic pulse tests on two reference Belgian clay formations
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Author:
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Oliveira Lima, Ana Carolina; Romero Morales, Enrique Edgar; Gens Solé, Antonio; Vaunat, Jean; Li, X.L.
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques |
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Abstract:
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Boom and Ypresian clays are being studied in Belgium in connection with the design of a repository for radioactive waste. Within this context, thermal impact may play an important role on the behaviour of these low-permeability clays. To evaluate this impact, heating pulse tests on intact borehole samples were carried out using an axi-symmetric and constant volume heating cell with controlled hydraulic boundary conditions. Attention is focused on the time evolution of temperature and pore water pressure changes along heating and cooling paths -i.e., pore pressure build-up during quasi-undrained heating and later dissipation to the applied hydraulic boundary conditions. A coupled thermo-hydro-mechanical finite element program was used in a first stage to determine thermal parameters by back-analysis and then to simulate selected experimental results on Boom clay |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls
-Clay soils--Permeability
-Constant volumes
-Finite element programs
-Heating and cooling
-Hydraulic boundaries
-Low permeability
-Pore-water pressures
-Pressure build up
-Thermal parameters
-Sòls argilosos |
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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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CRC
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