1 Introduction 1
1.1 Research Background and Significance 4
1.2 History and Present Study 6
1.3 Problems on Rock Creep 16
1.4 Research Methods and Contents 17
2 Tests on Creep of Rock Under Triaxial Compression 21
2.1 Conventional Tests of Rocks Under Triaxial Compression 21
2.2 Tests and Analysis of Creep Under Triaxial Compression 27
2.3 Tests of Triaxial Compression Creep Under Low Confining Pressure 33
2.4 Summary 43
3 Disturbance Effects on Creep Under Triaxial Compression 44
3.1 Equipment and Methods of Tests 45
3.2 Results and Analysis of Tests 48
3.3 Damage Constitutive Formula and Testing Verification 57
3.4 Summary 60
4 Damage Constitutive Relationship and Disturbance Effects on Creep Under Triaxial Load 61
4.1 Triaxial Shear Damage Creep of Rock Under Lower Confining Pressure 62
4.2 Low Confming Pressure Influence on Mechanics Characteristics of Soft Rock 70
4.3 Rock Disturbance Effects on Creep and Constitutive Relationship of Creep Damage 72
4.4 Summary 76
5 CT Scanning Tests of Creep Meso-damage 78
5.1 Meso Constitutive Relationship of Creep Damage 79
5.2 Tests and Analysis of Rock CT Scanning 83
5.3 Meso Creep Damage Under Disturbance Loads 110
5.4 Summary 113
6 Creep and Its Disturbance Effect of Rock Beam Bending 116
6.1 Creep Tests of Bending Under the Single Level Constant Load 117
6.2 Creep Tests of Static Bending Under the Stepwise Load 118
6.3 Disturbance Tests Under the Bending Creep State 119
6.4 Constitutive Relationship of Bending Creep Damage of Rock Beam 122
6.5 Summary 126
7 Main Research Results and Conclusions 128
Acknowledgements 134
References 135