NUMERICAL MODELING FOR COUPLED THERMO-HYDRO-MECHANICAL AND CHEMICAL PROCESSES （THMC） OF GEOLOGICAL MEDIA——INTERNATIONAL AND CHINESE EXPERIENCES

The coupled thermo-hydro-mechanical and chemical (THMC) processes of stress/deformation, fluid flow, temperature and geochemical reactions of the geological media, namely fractured rocks and soils, play an important role in design, construction,operation and environmental impact assessments of rock and soil engineering works such as underground nuclear waste repositories,oil/gas production and storage, geothermal energy extraction, landslides and slope stability, hydropower and water conservancy complexes, etc. This paper presents an overview of the international and Chinese experiences in numerical modeling of the coupled THMC processes for both the state-of-the-knowledge, remaining challenges and vossible future vrosvects.

[1]  Yuanming Lai,et al.  NONLINEAR ANALYSIS FOR THE COUPLED PROBLEM OF TEMPERATURE, SEEPAGE AND STRESS FIELDS IN COLD-REGION TUNNELS , 1998 .

[2]  Xia-Ting Feng,et al.  Effects of water chemistry on microcracking and compressive strength of granite , 2001 .

[3]  Kankanhalli N. Seetharamu,et al.  Non-Darcy natural convection in a hydrodynamically and thermally anisotropic porous medium , 2000 .

[4]  Xin-She Yang,et al.  A unified approach to mechanical compaction, pressure solution, mineral reactions and the temperature distribution in hydrocarbon basins , 2001, 1003.5295.

[5]  Craig J. Hickey,et al.  Mechanics of porous media , 1994 .

[6]  Hywel Rhys Thomas,et al.  Three-dimensional coupled heat, moisture, and air transfer in a deformable unsaturated soil , 1999 .

[7]  François Renard,et al.  Pressure solution in sandstones: influence of clays and dependence on temperature and stress , 1997 .

[8]  Robert W. Zimmerman,et al.  Coupling in poroelasticity and thermoelasticity , 2000 .

[9]  Alain Thoraval,et al.  Thermal convection of fluid in fractured media , 1995 .

[10]  T. Hashida,et al.  A 3-D water/rock chemical interaction model for prediction of HDR/HWR geothermal reservoir performance , 2002 .

[11]  Tomasz Hueckel,et al.  Reactive plasticity for clays during dehydration and rehydration. Part 1: concepts and options , 2002 .

[12]  Hywel Rhys Thomas,et al.  Inclusion of expansive clay behaviour in coupled thermo hydraulic mechanical models , 1999 .

[13]  G. Yeh,et al.  Numerical modeling of coupled variably saturated fluid flow and reactive transport with fast and slow chemical reactions. , 2001, Journal of contaminant hydrology.

[14]  B. Hobbs,et al.  Finite element modeling of fluid–rock interaction problems in pore-fluid saturated hydrothermal/sedimentary basins , 2001 .

[15]  M. Biot.  General solutions of the equations of elasticity and consolidation for a porous material , 1956 .

[16]  Xia-Ting Feng,et al.  A new method of modelling the rock micro-fracturing process in double-torsion experiments using neural networks , 1999 .

[17]  Xia-Ting Feng,et al.  Fractal structure of the time distribution of microfracturing in rocks , 1999 .

[18]  Paul A. Witherspoon,et al.  Theoretical and field studies of coupled hydromechanical behaviour of fractured rocks—1. Development and verification of a numerical simulator , 1992 .

[19]  Bernhard A. Schrefler,et al.  The Finite Element Method in the Deformation and Consolidation of Porous Media , 1987 .

[20]  Miguel Cervera,et al.  On the computational efficiency and implementation of block-iterative algorithms for nonlinear coupled Problems , 1996 .

[21]  John A. Hudson,et al.  Coupled T–H–M issues relating to radioactive waste repository design and performance , 2001 .

[22]  Takeshi Sasaki,et al.  Thermo‐mechanical consolidation coupling analysis on jointed rock mass by the finite element method , 1996 .

[23]  Derek Elsworth,et al.  Coupled Processes in Subsurface Deformation, Flow, and Transport , 2000 .

[24]  Alessandro Gajo,et al.  Chemo-mechanical coupling in saturated porous media: elastic–plastic behaviour of homoionic expansive clays , 2002 .

[25]  J. Z. Zhu,et al.  The finite element method , 1977 .

[26]  M. Biot.  General Theory of Three‐Dimensional Consolidation , 1941 .

[27]  S. Whitaker.  Simultaneous Heat, Mass, and Momentum Transfer in Porous Media: A Theory of Drying , 1977 .

[28]  William Pao,et al.  Coupling temperature to a double‐porosity model of deformable porous media , 2000 .

[29]  Wang Xi-cheng,et al.  A multi‐frontal parallel algorithm for coupled thermo–hydro–mechanical analysis of deforming porous media , 1998 .

[30]  Alison Ord,et al.  Numerical modelling of double diffusion driven reactive flow transport in deformable fluid‐saturated porous media with particular consideration of temperature‐dependent chemical reaction rates , 2000 .

[31]  R. de Boer.  The thermodynamic structure and constitutive equations for fluid-saturated compressible and incompressible elastic porous solids , 1998 .

[32]  M. Lespinasse,et al.  Evolution of crack permeability during fluid–rock interaction. Example of the Brézouard granite (Vosges, France) , 2001 .

[33]  A.P.S. Selvadurai,et al.  Scoping analyses of the coupled thermal-hydrological-mechanical behaviour of the rock mass around a nuclear fuel waste repository , 1997 .

[34]  Alison Ord,et al.  A numerical study of pore‐fluid, thermal and mass flow in fluid‐saturated porous rock basins , 1999 .

[35]  Jonny Rutqvist,et al.  Thermo-hydro-mechanical characterisation of a bentonite-based buffer material by laboratory tests and numerical back analyses , 2001 .

[36]  P. Domenico,et al.  Physical and chemical hydrogeology , 1990 .

[37]  Martin R. Okos,et al.  On multicomponent, multiphase thermomechanics with interfaces , 1994 .