[en] This paper introduces an unconventional constitutive model for soils, which deals with a unified thermomechanical modelling for unsaturated soils. The relevant temperature and suction effects are studied in light of elasto-plasticity. A generalized effective stress framework is adopted, which includes a number of intrinsic thermo-hydro-mechanical connections, to represent the stress state in the soil. Two coupled constitutive aspects are used to fully describe the non-isothermal behaviour. The mechanical constitutive part is built on the concepts of bounding surface theory and multi-mechanism plasticity, whereas water retention characteristics are described using elasto-plasticity to reproduce the hysteretic response and the effect of temperature and dry density on retention properties. The theoretical formulation is supported by comparisons with experimental results on two compacted clays.
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Gens A, Olivella S. Clay barrier in radioactive waste disposal. Revue Française de Génie Civil 2001; 5(6):845-856.
Laloui L, Nuth M, Vulliet L. Experimental and numerical investigations of the behaviour of a heat exchanged pile. International Journal for Numerical and Analytical Methods in Geomechanics 2006; 30:763-781.
Dusseault MB, Wang Y, Simmons JV. Induced stresses near a fire flood front. AOSTRa Journal of Research 1988 4:153-170.
Mitchell JK, Abdel-Hadi ON. Temperature distributions around buried cables. IEEE Transactions on Power Apparatus and Systems 1979; PAS-98(4):1158-1166.
Anders G, Radhakrishna H. Computation of temperature field and moisture content in the vicinity of current carrying underground power cables. IEE Proceedings 1988; 135C(1):51-62.
Gens A. Constitutive laws. Modern Issues in Non-saturated Soils. Springer: Berlin, 1995; 129-158.
Modaressi A, Modaressi H. Thermoplastic constitutive model for unsaturated soils: a prospective approach. Numerical Models in Geomechanics-NUMOG V, Davos, Switzerland, 1995; 45-50.
Khalili N, Loret B. An elasto-plastic model for non-isothermal analysis of flow and deformation in unsaturated porous media: formulation. International Journal of Solids and Structures 2001; 38:8305-8330.
Wu W, Li X, Charlier R, Collin F. A thermo-hydro-mechanical constitutive model and its numerical modelling for unsaturated soils. Computer and Geotechnics 2004; 31:155-167.
Bolzon G, Schrefler BA. Thermal effects in partially saturated soils: a constitutive model. International Journal for Numerical and Analytical Methods in Geomechanics 2005; 29(9):861-877.
François B, Laloui L. A stress-strain framework for modelling the behaviour of unsaturated soils under nonisothermal conditions. Theoretical and Numerical Unsaturated Soil Mechanics. Springer Proceedings in Physics, vol. 113. Springer: Berlin, 2007; 119-125.
Saix C, Jouanna P. Appareil triaxial pour l' étude du comportement thermique de sols non saturés. Canadian Geotechnical Journal 1990; 27:119-128.
Recordon E. Déformabilité des sols non saturés à diverses températures. Revue Francaise de Géotechnique 1993; 65:37-56.
Wiebe B, Graham J, Tang X, Dixon D. Influence of pressure, saturation and temperature on the behaviour of unsaturated sand-bentonite. Canadian Geotechnical Journal 1998; 35:194-205.
Romero E, Gens A, Lloret A. Suction effect on a compacted clay under non-isothermal conditions. Géotechnique [2003;] 53(1):65-81.
Romero E, Villar MV, Lloret A. Thermo-hydro-mechanical behaviour of two heavily overconsolidated clays. Engineering Geology 2004; 81:255-268.
Tang AM. Effet de la température sur le comportement des barrières de confinement. Ph.D. Thesis, Ecole Nationale des Ponts et Chausśees, Paris, 2005.
François B, Salager S, El Youssoufi MS, Ubals Picanyol D, Laloui L, Saix C. Compression tests on a sandy silt at different suction and temperature levels. ASCE Geotechnical Special Publication 157, 2007.
Salager S, François B, El Youssoufi MS, Laloui L, Saix C. Experimental investigations on temperature and suction effects on mechanical behaviour of a sandy silt. Soils and Foundations 2008; accepted.
Hueckel T, Borsetto M. Thermoplasticity of saturated soils and shales: constitutive equations. Journal of Geotechnical Engineering (ASCE) 1990; 116(12):1765-1777.
Alonso EE, Gens A, Josa A. A constitutive model for partially saturated soils. Ǵeotechnique 1990; 40(3):405-430.
Matyas EL, Radhakrishna HS. Volume change characteristics of partially saturated soils. Géotechnique 1968;18:432-448.
Fredlund DG, Morgenstern NR. Stress state variables for unsaturated soils. Journal of the Geotechnical Engineering Division (ASCE) 1977; 103(GT5):447-466.
Modaressi A, AbouBerk N. A unified approach to model the behaviour of saturated and unsaturated soils. Proceedings of the 8th IACMAG, Morgentown, U.S.A., 1994.
Modaressi H, Laloui L. A thermo-viscoplastic constitutive model for clays. International Journal for Numerical and Analytical Methods in Geomechanics 1997; 21(5):313-335.
Biarez J, Fleureau JM, Taibi S. Constitutive model for unsaturated granular media. Proceedings of the 2nd International Conference on Micromechanics of Granular Media, Birmingham, 1993.
Kohgo Y, Nakano M, Miyazaki T. Theoretical aspects of constitutive modelling for unsaturated soils. Soils and Foundations 1993; 33(4):49-63.
Loret B, Khalili N. A three phase model for unsaturated soils. International Journal for Numerical and Analytical Methods in Geomechanics 2000; 31:893-927.
Fredlund DG, Xiang A. Equation for the soil-water characteristics curve. Canadian Geotechnical Journal 1994; 31:521-532.
Bolzon G, Schrefler BA, Zienkiewicz OC. Elastoplastic soil constitutive law generalized to partially saturated state. Géotechnique 1996; 46:279-289.
Laloui L, Cekerevac C. Non-isothermal plasticity model for cyclic behaviour of soils. International Journal for Numerical and Analytical Methods in Geomechanics 2008; 32(5):437-460.
Laloui L, Cekerevac C. Thermo-plasticity of clays: an isotropic yield mechanism. Computers and Geotechnics [2003;] 30:649-660.
Cekerevac C, Laloui L. Experimental study of thermal effects on the mechanical behaviour of clays. International Journal for Numerical and Analytical Methods in Geomechanics 2004; 28:209-228.
Nuth M, Laloui L. New insight into the unified hydro-mechanical constitutive modeling of unsaturated soils. Proceedings of the 3rd Asian Conference on Unsaturated Soils, Nanjing, China, 2007; 109-126.
Gallipoli D, Wheeler SJ, Karstunen M. Modelling the variation of degree of saturation in a deformable unsaturated soil. Géotechnique 2003; 53(1):105-112.
Romero E. Characterisation and thermo-mechanical behaviour of unsaturated Boom clay: an experimental study.Ph.D. Thesis, UPC, Barcelona, 1999.
Lloret A, Romero E, Villar M. FEBEX II Project: final report on thermo-hydro-mechanical laboratory tests. Publicación técnica 10/2004, ENRESA, 2004.
Romero E, Gens A, Lloret A. Temperature effects on the hydraulic behaviour of an unsaturated clay. Geotechnicaland Geological Engineering 2001; 19:311-332.
Nuth M, Laloui L. Effective stress concept in unsaturated soils: clarification and validation of a unified framework. International Journal for Numerical and Analytical Methods in Geomechanics 2008; DOI: 10.1002/nag.645.
Bishop AW. The principle of effective stress. Tecnisk Ukeblad 1959; 39:859-863.
Bishop AW, Blight GE. Some aspects of effective stress in saturated and unsaturated soils. Géotechnique 1963; 13:177-197.
Schrefler BA. The finite element method in soil consolidation (with applications to surface subsidence). Ph.D. Thesis, University College of Swansea, 1984; C/Ph/76/84.
Laloui L, François B. ACMEG-T: a comprehensive soil thermo-plasticity model. Submitted.
Laloui L. Modélisation du comportement thermo-hydro-mécanique des milieux poreux anélastique. Ph.D. Thesis, Ecole Centrale de Paris, 1993.
Koiter WT. General theorems for elastic-plastic solids. In Progress in Solid Mechanics, Sneddon IN, Hill R (eds). North-Holland: Amsterdam, 1960; 167-221.
Mandel W. Généralisation de la théorie de Koiter. International Journal of Solids and Structures 1965; 1:273-295.
Hujeux JC. Calcul numérique de problèmes de consolidation élastoplastique. Ph.D. Thesis, Ecole Centrale de Paris, 1979.
Roscoe KH, Burland JB. On the generalized stress-strain behaviour of 'wet' clay. In Engineering Plasticity, Heyman J, Leckie FA (eds). Cambridge University Press: Cambridge, England, 1968; 535-609.
Dafalias Y, Herrmann L. A bounding surface soil plasticity model. International Symposium on Soils under Cyclic and Transient Loading, Swansea, 1980; 335-345.
Prager W. Non-isothermal plastic deformation. Proceedings of the Section of Sciences-B, vol. 61. Koninkklijk-Nederland Akademie Van Wetenschappen Te Amsterdam: Amsterdam, 1958; 176-182.
Rizzi E, Maier G, Willam K. On failure indicators in multi-dissipative materials. International Journal of Solids and Structures 1996; 33(20-22):3187-3214.
Borja RI. Cam-clay plasticity. Part V: a mathematical framework for three-phase deformation and strain localization analyses of partially saturated porous media. Computer Methods in Applied Mechanics and Engineering 2004;193:5301-5338.
Wheeler SJ, Sharma RS, Buisson MSR. Coupling of hydraulic hysteresis and stress-strain behaviour in unsaturated soils. Géotechnique 2003; 53(1):41-54.
Cuisinier O, Laloui L. Fabric evolution during hydro-mechanical loading of compacted silt. International Journal for Numerical and Analytical Methods in Geomechanics 2004; 28(6):483-499.
Similar publications
Sorry the service is unavailable at the moment. Please try again later.
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.