Effects of Thermo-Osmosis on Hydraulic Behavior of Saturated Clays
Publication: International Journal of Geomechanics
Volume 17, Issue 3
Abstract
Despite a body of research carried out on thermally coupled processes in soils, understanding of thermo-osmosis phenomenon in clays and its effects on hydromechanical behavior is incomplete. This paper presents an investigation on the effects of thermo-osmosis on hydraulic behavior of saturated clays. A theoretical formulation for hydraulic behavior was developed, incorporating an explicit description of thermo-osmosis effects on coupled hydromechanical behavior. The extended formulation was implemented within a coupled numerical model for thermal, hydraulic, chemical, and mechanical behavior of soils. The model was tested and applied to simulate a soil heating experiment. It is shown that the inclusion of thermo-osmosis in the coupled thermohydraulic simulation of the case study provides a better agreement with the experimental data compared with the case in which only thermal expansion of the soil constituents was considered. A series of numerical simulations are also presented, studying the pore-water pressure development in saturated clay induced by a heating source. It is shown that pore-water pressure evolution can be considerably affected by thermo-osmosis. Under the conditions of the problem considered, it was found that thermo-osmosis changed the pore-water pressure regime in the vicinity of the heater when the value of thermo-osmotic conductivity was larger than 10−12 m2·K−1·s−1. New insights into the hydraulic response of the ground and the pore-pressure evolution due to thermo-osmosis are provided in this paper.
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Acknowledgments
This work was carried out as a part of the Geoenvironmental Research Centre’s (GRC’s) Seren project, which is funded by the Welsh European Funding Office (WEFO). The financial support is gratefully acknowledged.
References
Baldi, G., Hueckel, T., and Pellegrini, R. (1988). “Thermal volume changes of the mineral-water system in low-porosity clay soils.” Can. Geotech. J., 25(4), 807–825.
Campanella, R. G., and Mitchell, J. K. (1968). “Influence of temperature variations on soil behavior.” J. Geotech. Engrg., 94(3), 709–734.
Chen, G. J., Sillen, X., Verstricht, J., and Li, X. L. (2011). “ATLAS III in situ heating test in boom clay: Field data, observation and interpretation.” Comput. Geotech., 38(5), 683–696.
Chen, X. H., Pao, W., and Li, X. (2013). “Coupled thermo-hydro-mechanical model with consideration of thermal-osmosis based on modified mixture theory.” Int. J. Eng. Sci., 64, 1–13.
Cleall, P. J., Seetharam, S., and Thomas, H. R. (2007). “Inclusion of some aspects of chemical behavior of unsaturated soil in thermo/hydro/chemical/mechanical models. I: Model development.” J. Eng. Mech., 338–347.
COMPASS [Computer software]. Geoenvironmental Research Centre, Cardiff University, Cardiff, U.K.
Cui, Y. J., Le, T. T., Tang, A. M., Delage, P., and Li, X. L. (2009). “Investigating the time-dependent behaviour of Boom clay under thermo-mechanical loading.” Géotechnique, 59(4), 319–329.
Deng, Y. F., Tang, A. M., Cui, Y. J., and Li, X. L. (2011). “Study on the hydraulic conductivity of Boom clay.” Can. Geotech. J., 48(10), 1461–1470.
Dirksen, C. (1969). “Thermo-osmosis through compacted saturated clay membranes.” Soil Sci. Soc. Am. J., 33(6), 821–826.
François, B., Laloui, L., and Laurent, C. (2009). “Thermo-hydro-mechanical simulation of ATLAS in situ large scale test in Boom Clay.” Comput. Geotech., 36(4), 626–640.
Ghassemi, A., and Diek, A. (2002). “Porothermoelasticity for swelling shales.” J. Pet. Sci. Eng., 34(1-4), 123–135.
Ghassemi, A., Tao, Q., and Diek, A. (2009). “Influence of coupled chemo-poro-thermoelastic processes on pore pressure and stress distributions around a wellbore in swelling shale.” J. Pet. Sci. Eng., 67(1-2), 57–64.
Gonçalvès, J., De Marsily, G., and Tremosa, J. (2012). “Importance of thermo-osmosis for fluid flow and transport in clay formations hosting a nuclear waste repository.” Earth Planet. Sci. Lett., 339–340, 1–10.
Gonçalvès, J., and Trémosa, J. (2010). “Estimating thermo-osmotic coefficients in clay-rocks: I. Theoretical insights.” J. Colloid Interface Sci., 342(1), 166–174.
Hong, P. Y., Pereira, J. M., Tang, A. M., and Cui, Y. J. (2013). “On some advanced thermo-mechanical models for saturated clays.” Int. J. Numer. Anal. Methods Geomech., 37(17), 2952–2971.
Hueckel, T., and Baldi, G. (1990). “Thermoplasticity of saturated clays: Experimental constitutive study.” J. Geotech. Eng., 1778–1796.
Hueckel, T., Francois, B., and Laloui, L. (2011). “Temperature-dependent internal friction of clay in a cylindrical heat source problem.” Géotechnique, 61(10), 831–844.
Laloui, L., and François, B. (2009). “ACMEG-T: Soil thermoplasticity model.” J. Eng. Mech., 932–944.
Mitchell, J. K. (1993). Fundamentals of soil behavior, Wiley, Univ. of California, Berkley, CA.
Moritz, L., and Gabrielsson, A. (2001). “Temperature effect on the properties of clay.” Soft Ground Technology, ASCE, Reston, VA, 304–314.
Roshan, H., and Aghighi, M. A. (2012). “Analysis of pore pressure distribution in shale formations under hydraulic, chemical, thermal and electrical interactions.” Transp. Porous Media, 92(1), 61–81.
Roshan, H., Andersen, M. S., and Acworth, R. I. (2015). “Effect of solid-fluid thermal expansion on thermo-osmotic test: An experimental and analytical study.” J. Pet. Sci. Eng., 126, 222–230.
Sánchez, M., Gens, A., and Olivella, S. (2010). “Effect of thermo-coupled processes on the behaviour of a clay barrier submitted to heating and hydration.” Ann. Braz. Acad. Sci., 82(1), 153–168.
Sedighi, M. (2011). “An investigation of hydro-geochemical processes in coupled thermal, hydraulic, chemical and mechanical behaviour of unsaturated soils.” Ph.D. thesis, Cardiff Univ., Cardiff, U.K.
Sedighi, M., and Thomas, H. R. (2014). “Micro porosity evolution in compacted swelling clays—A chemical approach.” Appl. Clay Sci., 101, 608–618.
Sedighi, M., Thomas, H. R., and Vardon, P. J. (2016). “Reactive transport of chemicals in unsaturated soils: Numerical model development and verification.” Can. Geotech. J., 52, 1–11.
Seetharam, S., Thomas, H. R., and Vardon, P. J. (2011). “Nonisothermal multicomponent reactive transport model for unsaturated soil.” Int. J. Geomech., 84–89.
Soler, J. M. (2001). “The effect of coupled transport phenomena in the Opalinus clay and implications for radionuclide transport.” J. Contam. Hydrol., 53(1–2), 63–84.
Sultan, N., Delage, P., and Cui, Y. J. (2002). “Temperature effects on the volume change behaviour of Boom clay.” Eng. Geol., 64(2–3), 135–145.
Thomas, H. R., Cleall, P. J., Chandler, N., Dixon, D., and Mitchell, H. P. (2003). “Water infiltration into a large-scale in-situ experiment in an underground research laboratory.” Géotechnique, 53(2), 207–224.
Thomas, H. R., and He, Y. (1997). “A coupled heat–moisture transfer theory for deformable unsaturated soil and its algorithmic implementation.” Int. J. Numer. Methods Eng., 40(18), 3421–3441.
Thomas, H. R., He, Y., Sansom, M. R., and Li, C. L. W. (1996). “On the development of a model of the thermo-mechanical-hydraulic behaviour of unsaturated soils.” Eng. Geol., 41(1–4), 197–218.
Thomas, H. R., and Sedighi, M. (2012). “Modelling the engineering behaviour of highly swelling clays.” Proc., 4th Int. Conf. on Problematic Soils, I. M. Pinto and L. Kong, eds., Ci-Premier, Singapore, 21–33.
Thomas, H. R., Sedighi, M., and Vardon, P. J. (2012). “Diffusive reactive transport of multicomponent chemicals under coupled thermal, hydraulic, chemical and mechanical conditions.” Geotech. Geol. Eng., 30(4), 841–857.
Towhata, I., Kuntiwattanaku, P., Seko, I., and Ohishi, K. (1993). “Volume change of clays induced by heating as observed in consolidation tests.” Soils Found., 33(4), 170–183.
Trémosa, J., Gonçalvès, J., Matray, J. M., and Violette, S. (2010). “Estimating thermo-osmotic coefficients in clay-rocks: II. In situ experimental approach.” J. Colloid Interface Sci., 342(1), 175–184.
Vardon, P. J., Cleall, P. J., Thomas, H. R., Philp, R. N., and Banicescu, I. (2011). “Three-dimensional field-scale coupled thermo-hydro-mechanical modeling: Parallel computing implementation.” Int. J. Geomech., 90–98.
Yang, Y., Guerlebeck, K., and Schanz, T. (2014). “Thermo-osmosis effect in saturated porous medium.” Transp. Porous Media, 104(2), 253–271.
Zheng, L., and Samper, J. (2008). “A coupled THMC model of FEBEX mock-up test.” Phys. Chem. Earth., 33(Supplement 1), S486–S498.
Zheng, L., Samper, J., and Montenegro, L. (2011). “A coupled THC model of the FEBEX in situ test with bentonite swelling and chemical and thermal osmosis.” J. Contam. Hydrol., 126(1–2), 45–60.
Zhou, Y., Rajapakse, R. K. N. D., and Graham, J. (1998). “A coupled thermoporoelastic model with thermo-osmosis and thermal-filtration.” Int. J. Solids Struct., 35(34–35), 4659–4683.
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Published In
International Journal of Geomechanics
Volume 17 • Issue 3 • March 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Nov 24, 2015
Accepted: May 27, 2016
Published online: Aug 10, 2016
Discussion open until: Jan 10, 2017
Published in print: Mar 1, 2017
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