Coupled processes in rock mass performance with emphasis on nuclear waste isolation

Driven by the needs of engineered underground systems, the field of rock mechanics is evolving to address the interactions of in situ mechanical, thermal, hydrologic, and chemical processes and their effects on system performance. Important technical issues include understanding how the relevant loads and gradients drive in situ processes; rock mass variability, discontinuity, and heterogeneity; process and parameter scale dependence; and the degree of coupling between processes. Major challenges include scaling information from short-duration laboratory tests up to long-term, full-scale system performance and the lack of experimental investigations or simulations of fully coupled thermal-mechanical-hydrologic-chemical behavior. Technical trends and opportunities that may benefit rock engineering include applied research in reactive geochemistry, information technology for measurement systems, and modeling and monitoring combined in an observational method to improve system performance.

[1]  N Oreskes,et al.  Verification, Validation, and Confirmation of Numerical Models in the Earth Sciences , 1994, Science.

[2]  Pierre Berest,et al.  A salt cavern abandonment test , 2001 .

[3]  Françoise Homand,et al.  Damage-induced permeability changes in granite: a case example at the URL in Canada , 2001 .

[4]  Akira Kobayashi,et al.  Continuous approach for coupled mechanical and hydraulic behavior of a fractured rock mass during hypothetical shaft sinking at Sellafield, UK , 2001 .

[5]  Masahiro Chigira,et al.  Mechanism and effect of chemical weathering of sedimentary rocks , 2000 .

[6]  K. Khair,et al.  International comparison of coupled thermo-hydro-mechanical models of a multiple-fracture bench mark problem : DECOVALEX phase I, bench mark test 2 , 1995 .

[7]  Kevin G. Knauss,et al.  Reactive transport modeling of plug-flow reactor experiments: quartz and tuff dissolution at 240°C , 1998 .

[8]  Thomas Kohl,et al.  Coupled hydraulic, thermal and mechanical considerations for the simulation of hot dry rock reservoirs , 1995 .

[9]  Brian Berkowitz,et al.  Investigation of flow in water‐saturated rock fractures using nuclear magnetic resonance imaging (NMRI) , 1999 .

[10]  A. Rejeb,et al.  Hydromechanical effects of shaft sinking at the Sellafield site , 2001 .

[11]  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 .

[12]  L. Jing,et al.  Thermohydromechanics of partially saturated geological media : governing equations and formulation of four finite element models , 2001 .

[13]  Carl I. Steefel,et al.  Multicomponent reactive transport in discrete fractures: II: Infiltration of hyperalkaline groundwater at Maqarin, Jordan, a natural analogue site , 1998 .

[14]  H. Hakami.  Rock characterisation facility (RCF) shaft sinking — numerical computations using FLAC , 2001 .

[15]  Stephen H. Hickman,et al.  Introduction to Special Section: Mechanical Involvement of Fluids in Faulting , 1995 .

[16]  James D. Blacic,et al.  Permeability changes during time‐dependent deformation of silicate rock , 1984 .

[17]  Masahiro Chigira,et al.  Weathering rate of mudstone and tuff on old unlined tunnel walls , 2000 .

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

[19]  D. Lockner,et al.  Reduction of Permeability in Granite at Elevated Temperatures , 1994, Science.

[20]  G. Zyvoloski,et al.  A numerical model for thermo-hydro-mechanical coupling in fractured rock , 1997 .

[21]  J. Rutqvist,et al.  Theoretical and field studies of coupled hydromechanical behaviour of fractured rocks—2. Field experiment and modelling , 1992 .

[22]  Thomas Dewers,et al.  Nonlinear dynamical aspects of deep basin hydrology; fluid compartment formation and episodic fluid release , 1994 .

[23]  Nick Barton,et al.  An improved model for hydromechanical coupling during shearing of rock joints , 2001 .

[24]  Chin-Fu Tsang,et al.  Coupled thermal-hydraulic-mechanical phenomena in saturated fractured porous rocks: numerical approach , 1984 .

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

[26]  N. Barton,et al.  Strength, deformation and conductivity coupling of rock joints , 1985 .

[27]  U. Berner.  Geochemical Modelling of Repository Systems: Limitations of the Thermodynamic Approach , 1998 .

[28]  David M. Doolin,et al.  New directions in rock mechanics — report on a forum sponsored by the American Rock Mechanics Association , 2000 .

[29]  J. Jaime Gómez-Hernández,et al.  Stochastic analysis of flow response in a three-dimensional fractured rock mass block $ , 2001 .

[30]  Jonny Rutqvist,et al.  Hydro-mechanical response of a fractured granitic rock mass to excavation of a test pit - the Kamaishi Mine experiment in Japan , 2001 .

[31]  A.P.S. Selvadurai,et al.  A model for coupled mechanical and hydraulic behaviour of a rock joint , 1998 .

[32]  Brian Berkowitz,et al.  Buoyancy-driven dissolution enhancement in rock fractures , 2000 .

[33]  A. Rejeb.  Mathematical simulations of coupled THM processes of Fanay-Augères field test by distinct element and discrete finite element methods , 1996 .

[34]  M.H.H. Hettema,et al.  A microstructural analysis of the compaction of claystone aggregates at high temperatures , 1999 .

[35]  M. Hettema,et al.  The influence of steam pressure on thermal spalling of sedimentary rock: Theory and experiments , 1998 .

[36]  Alain Thoraval,et al.  Continuum representation of coupled hydromechanic processes of fractured media : Homogenisation and parameter identification , 1996 .

[37]  Yvonne Tsang.  A field study for understanding thermally driven coupled processes in partially saturated fractured welded tuff , 2000 .

[38]  Lixin Wu,et al.  Remote sensing rock mechanics (RSRM) and associated experimental studies , 2000 .

[39]  K Bakhtar,et al.  Performance assessment of underground munitions storage facilities , 2000 .

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

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

[42]  Y. Le Gallo,et al.  Coupled reaction-flow modeling of diagenetic changes in reservoir permeability, porosity and mineral compositions , 1998 .

[43]  P. Witherspoon,et al.  The Stripa project , 2000 .

[44]  Douglas W. Kirkland,et al.  Dissolution of salt deposits by brine density flow , 1980 .

[45]  Tin Chan,et al.  A three-dimensional numerical model for thermohydromechanical deformation with hysteresis in a fractured rock mass , 2000 .

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

[47]  Chin-Fu Tsang,et al.  A discussion of thermo–hydro–mechanical (THM) processes associated with nuclear waste repositories , 2000 .

[48]  Patricia M. Dove,et al.  Geochemical controls on the kinetics of quartz fracture at subcritical tensile stresses , 1995 .

[49]  Jonny Rutqvist,et al.  Coupled thermo-hydro-mechanical analysis of a heater test in fractured rock and bentonite at Kamaishi Mine : comparison of field results to predictions of four finite element codes , 2001 .

[50]  Daniel D. Kana,et al.  Experimental study on dynamic behavior of rock joints , 1996 .

[51]  Dag Kristian Dysthe,et al.  Enhanced pressure solution creep rates induced by clay particles: Experimental evidence in salt aggregates , 2001 .

[52]  Brian Berkowitz,et al.  Field observation of flow in a fracture intersecting unsaturated chalk , 1999 .

[53]  K. M. Neaupane,et al.  Simulation of a fully coupled thermo–hydro–mechanical system in freezing and thawing rock , 1999 .

[54]  Christine Doughty,et al.  Conceptual model of the geometry and physics of water flow in a fractured basalt vadose zone , 2000 .

[55]  Lanru Jing,et al.  Modeling of fluid flow and solid deformation for fractured rocks with discontinuous deformation analysis (DDA) method , 2001 .

[56]  Pierre M. Adler,et al.  Deposition in porous media and clogging , 1993 .

[57]  W. R Wawersik.  The value of laboratory experiments for code validations , 2000 .

[58]  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 .

[59]  Thomas A. Dewers,et al.  Rate laws for water‐assisted compaction and stress‐induced water‐rock interaction in sandstones , 1995 .

[60]  John A. Hudson,et al.  The fully-coupled model for rock engineering systems , 1995 .

[61]  J. L. Knight.  Prediction of the hydro-mechanical response during shaft sinking for the proposed Nirex Rock Characterisation Facility near Sellafield, Cumbria, United Kingdom , 2001 .

[62]  Masanobu Oda,et al.  An Equivalent Continuum Model for Coupled Stress and Fluid Flow Analysis in Jointed Rock Masses , 1986 .

[63]  R. J. Pine,et al.  A hydro-thermo-mechanical numerical model for HDR geothermal reservoir evaluation , 1996 .

[64]  John W. Morse,et al.  Crystallization pressure versus “crack seal” as the mechanism for banded veins , 2001 .

[65]  Akira Kobayashi,et al.  Field experiment, results and THM behavior in the Kamaishi mine experiment , 2001 .

[66]  Lanru Jing,et al.  Constitutive models for rock joints , 1996 .

[67]  M.H.H. Hettema,et al.  Production-Induced Compaction of a Sandstone Reservoir: The Strong Influence of Stress Path , 2000 .

[68]  M. Durin,et al.  Discrete and continuum approaches to simulate the thermo-hydro-mechanical couplings in a large, fractured rock mass , 1995 .