On the thermal consolidation of Boom clay

By P. Delage, N. Sultan, Yu-Jun Cui. 2000

313 citations recorded by the source corpus.

When a mass of saturated clay is heated, as in the case of host soils surrounding nuclear waste disposal at great depth, the thermal expansion of the constituents generates excess pore pressures. The mass of clay is submitted to gradients of pore pressure and temperature, hydraulic and thermal flows, and changes in its mechanical properties. In this work, some of these aspects were experimentally studied in the case of Boom clay to help predict the response of the soil, in relation to investigations in the Belgian underground laboratory at Mol. Results of slow-heating tests with careful volume change measurements showed that a reasonable prediction of the thermal expansion of the clay-water system was obtained by using the thermal properties of free water. Despite the density of Boom clay, no significant effect of water adsorption was observed. The thermal consolidation of Boom clay was studied through fast-heating tests. A simple analysis shows that the hydraulic and thermal transfers are uncoupled. Expe...

Subfields: Civil and Structural Engineering, Mechanics of Materials

View Paper: https://www.semanticscholar.org/paper/86ec88e5371feda81f5abd1a0f8f828978e24ffc

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In Civil and Structural Engineering

In Mechanics of Materials

Citations in the corpus

Volume change behaviour of saturated clays under drained heating conditions: experimental results and constitutive modeling (2007, unknown): “, Pacific Ocean clay; Boom clay; Pasquasia clay; Spanish clays) by Houston et al. (1985), Baldi et al.”
Thermo-mechanical behaviour of a compacted swelling clay (2008, background): “…1995; Baldi et al. 1988; Burghignoli et al. 2000; Campanella & Mitchell 1968; Cekerevac & Laloui 2004; De Bruyn & Thimus 1996; Del Olmo et al. 1996; Delage et al. 2000; Demars & Charles 1982; Eriksson 1989; Habibagahi 1977; Hueckel & Baldi 1990; Kuntiwattanakul et al. 1995; Laloui 2001; Noble &…”
Thermally induced volume change and excess pore water pressure of soft Bangkok clay (2007, background): “The second approach involves raising the temperature incrementally when the volume change under the current temperature is stabilized (Towhata et al., 1993; Delage et al., 2000).”