Contents Chapter 1 Introduction 1 1.1 Intact rock and rock mass 1 1.2 The basic tasks of rock mechanics 6 1.3 The development history and current situation of rock mass mechanics 8 1.4 Research methods 10 Reflections and exercise 11 Chapter 2 Physical Properties of Rock 12 2.1 Abstract 12 2.2 Physical properties 12 2.3 Water effect properties 16 2.4 Thermal and magnetic properties 22 2.5 Rock mass structure 25 Reflections and exercise 31 Chapter 3 Mechanical Properties of Intact Rock 32 3.1 Abstract 32 3.2 Mechanical properties of rock under uniaxial compression 33 3.3 Mechanical properties of rock under triaxial compression 41 3.4 Mechanical properties under tensile condition 52 3.5 Mechanical properties under shear test 57 3.6 Affecting factors of rock mechanical properties 58 Reflections and exercise 63 Chapter 4 Mechanical Properties of Rock Mass 64 4.1 Abstract 64 4.2 Mechanical properties of discontinuities 64 4.3 Deformation of rock mass 71 4.4 Strength of rock mass 80 4.5 Strength theory of rock(rock mass) 89 4.6 Classification of rock mass 106 Reflections and exercise 125 Chapter 5 Rock Rheology Mechanics 126 5.1 Abstract 126 5.2 Basic mechanical properties of rock rheology 126 5.3 Rock rheology tests 129 5.4 Influence factors of rock rheology properties 133 5.5 Constitutive model of rock rheology 138 5.6 Long-term strength of rock 149 Reflections and exercise 151 Chapter 6 Seepage Mechanics in Rock Engineering 152 6.1 Abstract 152 6.2 Porous media and fracture media 152 6.3 Darcy's law and mathematical model of groundwater seepage 154 6.4 Permeability of intact rock 156 6.5 Permeability of rock mass 171 Reflections and exercise 179 Chapter 7 State of Stress Underground and Stresses Around Cavities 180 7.1 Abstract 180 7.2 Origin of in-situ stress 181 7.3 Distribution of in-situ stress 183 7.4 Measurement of in-situ stress 188 7.5 Surrounding rock redistribution stress 194 Reflections and exercise 207 Chapter 8 The stability of Underground Engineering 208 8.1 Abstract 208 8.2 Deformation and failure of surrounding rock 209 8.3 Peripheral rock pressure 219 8.4 Supporting theory of underground applications 229 8.5 Monitoring of underground applications 238 Reflections and exercise 249 References 250