Título:
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Coupled thermo-hydraulic pulse tests on two reference Belgian clay formations
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Autor/a:
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Oliveira Lima, Ana Carolina; Romero Morales, Enrique Edgar; Gens Solé, Antonio; Vaunat, Jean; Li, X.L.
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Otros autores:
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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 |
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 |
Materia(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 |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Objeto de conferencia |
Editor:
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CRC
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