Intro
Preface
Contents
1 Introduction
References
Part I Fundamentals
2 Shear Behaviors and Damage Characteristics of Rock Fractures
2.1 Introduction
2.2 Development of Direct Shear Test
2.3 Shear Behavior of Rock Fractures
2.4 Shear Parameters of Rock Fractures
2.5 AE Characteristics During Shear
2.6 Characteristics of Shear-Induced Asperity Damage
2.7 Summary
References
3 Water-Rock Interactions in Rock Fractures
3.1 Introduction
3.2 Water-Rock Mechanical Interaction
3.2.1 Effective Stress Law
3.2.2 Effective Stress Coefficient

3.2.3 Validation
3.3 Water-Rock Physical Interaction
3.3.1 Macro- and Micro-Mechanisms
3.3.2 Effects of Water-Rock Physical Interaction on Fracture Shear Behaviors
3.4 Water-Rock Chemical Interaction
3.4.1 Mechanisms
3.4.2 Effects of Water-Rock Chemical Interaction on Fracture Shear Behaviors
3.5 Effect of Water-Rock Interactions on Rock Fracture Instability
3.6 Summary
References
4 Thermal Effects on Mechanical and Hydraulic Behaviors of Rock Fractures
4.1 Introduction
4.2 Thermal Effect on Mechanical Behaviors of Rock Fractures

4.2.1 Experimental Observation
4.2.2 Particle-Based DEM Models
4.2.3 Mechanisms of Thermal Effects on Shear Properties of Rock Fractures
4.3 Thermal Effects on Hydraulic Behaviors of Rock Fractures
4.3.1 Experimental Design
4.3.2 Experimental Results
4.3.3 Theoretical Models
4.3.4 Verification: Comparison Between Predicted and Observed Results
4.3.5 Limitations
4.4 Summary
References
Part II Numerical Methods
5 Governing Equations for Coupled THMC Processes
5.1 Introduction
5.2 Fluid Flow Process
5.2.1 Fluid Flow in Fracture

5.2.2 Fluid Flow in Porous Rock Matrix
5.3 Reactive Transport Process
5.3.1 Fluid-Rock Chemical Reaction
5.3.2 Reactive Transport in Fracture
5.3.3 Reactive Transport in Porous Rock Matrix
5.3.4 Aperture Alteration by Chemical Reaction
5.4 Heat Transport Process
5.4.1 Heat Transport in Fracture
5.4.2 Heat Transport in Porous Rock Matrix
5.5 Rock Constitutive Models
5.5.1 Rock Fracture
5.5.2 Porous Rock Matrix
5.6 Coupling Relationships
5.7 Initial and Boundary Conditions
5.8 Line Element Model for Engineering Structures
5.9 Summary
References

6 Numerical Modeling on Coupled THMC Processes in Fractured Rocks
6.1 Introduction
6.2 Verification Example of Acid Fracturing Test
6.2.1 Fracture Aperture Field Generation
6.2.2 Sensitivity Analysis
6.3 Verification of Line Element Model for Engineering Structures
6.3.1 Geothermal Well
6.3.2 Tunnel
6.4 Verification of Surface Settlement During Geothermal Exploitation
6.5 Summary
References
7 Equivalent Flow Channel Model
7.1 Introduction
7.2 Equivalent Flow Channel Model
7.2.1 Preferred Flow Paths in Fractured and Porous Reservoirs