Front Cover -- Numerical Modelling and Analysis of Fluid Flow and Deformation of Fractured Rock Masses -- Copyright Page -- Contents -- Preface -- Chapter 1. Introduction to Modelling Deformation and Fluid Flow of Fractured Rock -- 1.1. Introduction -- 1.2. Approaches to modelling rock systems -- 1.3. Continuum models -- 1.4. Flow models -- 1.5. Discontinuum models -- 1.6. Overview of UDEC -- 1.7. Summary of numerical modelling -- Chapter 2. Modelling of Simple Rock Blocks -- 2.1. Introduction -- 2.2. Basic components of natural fracture networks -- 2.3. Model geometry and initial conditions -- 2.4. Basic behaviour of deformation and fluid flow -- 2.5. Effects of fracture geometry -- 2.6. Effects of fracture properties -- 2.7. Effects of applied boundary stresses -- 2.8. Effects of rock deformation models -- 2.9. Summary -- Chapter 3. Evaluation of 2-Dimensional Permeability Tensors -- 3.1. Introduction -- 3.2. Calculation of components of flow-rates -- 3.3. Permeability in naturally fractured rocks -- 3.4. Geometrical effects on permeability -- 3.5. Effects of stress on permeability -- 3.6. Conclusions -- Appendix 3-A 1: Input codes for example one -- Appendix 3-A2: Derivation of 2-D permeability tensor -- Chapter 4. Scaling of 2-D Permeability Tensors -- 4.1. Introduction -- 4.2. Development of the previous approach -- 4.3. Testing the concept of a representative element volume by down-scaling -- 4.4. Scaling-up of permeability -- 4.5. Effects of sample number and sample size -- 4.6. Determining the permeability of a region -- 4.7. Conclusions -- Chapter 5. Percolation Behaviour of Fracture Networks -- 5.1. Introduction -- 5.2. Modelling of 2-dimensional fracture networks -- 5.3. Density, percolation threshold and fractal dimension -- 5.4. Critical behaviour of fractured rock masses -- 5.5. Conclusions.

Chapter 6. Slip and Fluid Flow around An Extensional Fault -- 6.1. Introduction -- 6.2. Outline of modelling -- 6.3. Stress distribution and fluid flow in model A: At a shallow depth with a hydrostatic fluid pressure -- 6.4. Comparison of model A with a supra-hydrostatic fluid pressure at greater depth -- 6.5. Effects of irregularities in fault zone -- 6.6. Discussion of dynamic response of fluid-dilation interactions -- 6.7. Conclusions -- Chapter 7. Instability and Associated Localization of Deformation and Fluid Flow in Fractured Rocks -- 7.1. Introduction -- 7.2. Numerical determination of instability -- 7.3. Instability and R-ratio -- 7.4. Effects of fracture network geometry -- 7.5. Multifractal description of flow localisation -- 7.6. Permeability of three natural fracture networks before and at critical stress state -- 7.7. Effects of loading direction -- 7.8. Is the crust in a critical state? -- 7.9. Implications for mineral deposits -- 7.10. Conclusions -- Chapter 8. Grain Scale Flow of Fluid in Fractured Rocks -- 8.1. Introduction -- 8.2. Simulation of Deformation and Fracturing in Matrix Models -- 8.3. Dual Permeability Model -- 8.4. Results -- 8.5. Discussion and Conclusions -- Chapter 9. Changes of Permeability due to Excavation of Ship-Locks of the Three Gorges Project, China -- 9.1. Introduction -- 9.2. Estimation of permeability -- 9.3. Permeability before excavation -- 9.4. Modelling of the excavation of the ship-locks -- 9.5. Permeability after excavation -- 9.6. Concluding discussion -- Chapter 10. Wellbore Instability due to "Block Loosening" in Fractured Rock Masses -- 10.1. Introduction -- 10.2. Model geometry and conditions used -- 10.3. Randomly isotropic fracture geometry with constant wellbore pressure -- 10.4. Randomly isotropic fracture geometry with increased or reduced wellbore pressure.

10.5. Comparison of different fracture patterns -- 10.6. Conclusions -- Appendix 10-A1: Analytic solution for a homogeneous medium -- Summary -- References -- Index.