Preface |
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xv | |
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Section 1 True triaxial testing techniques and procedures |
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1 True-triaxial testing techniques for rocks State of the art and future perspectives |
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3 | (16) |
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3 | (2) |
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2 Development history of true triaxial test techniques for testing rocks S |
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2.1 Types of TTT apparatuses |
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5 | (1) |
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2.2 Type-I: Rigid platen type |
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6 | (1) |
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2.3 Type-II: Flexible medium type |
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7 | (1) |
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8 | (1) |
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2.5 Comparison of various kinds of TTT apparatuses |
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9 | (1) |
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3 True-triaxial rock testing techniques in China |
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10 | (4) |
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3.1 Development and application of TTT apparatuses for rocks in China |
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10 | (2) |
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3.2 Newly developed TTT apparatuses for rocks in China |
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12 | (2) |
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4 Problems and future perspectives of TTT for rocks |
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14 | (2) |
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14 | (1) |
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15 | (1) |
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16 | (3) |
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2 Numerical analysis of loading boundary effects in Mogi-type true triaxial tests |
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19 | (16) |
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19 | (1) |
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2 Influence of platen thickness |
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20 | (3) |
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20 | (1) |
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2.2 Results and discussion |
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21 | (2) |
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3 Influence of loading eccentricity |
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23 | (1) |
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4 Influence of the end friction effect |
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24 | (4) |
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4.1 Introduction of the end friction effect |
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24 | (1) |
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4.2 Numerical scheme and associated parameters |
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25 | (1) |
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4.3 Results and discussion |
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26 | (2) |
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5 Influence of the corner effect |
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28 | (4) |
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5.1 Influence on the uniform distribution of stress |
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28 | (1) |
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5.2 Influence on the failure surface |
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28 | (4) |
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32 | (3) |
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3 Design and development of integrated true triaxial rock testing system |
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35 | (16) |
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35 | (1) |
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35 | (1) |
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2.1 Mechanical/hydraulic requirements |
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36 | (1) |
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2.2 Electrical/electronic requirements |
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36 | (1) |
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2.3 Additional requirements |
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36 | (1) |
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3 Integrated true triaxial rock testing system |
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36 | (13) |
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3.1 Polyaxial Test (PAT) Rig or True Triaxial Loading Frame |
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36 | (1) |
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3.2 Polyaxial Imaging Cell---True Triaxial Test Cell-Geophysical Imaging Cell "B" |
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37 | (12) |
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49 | (2) |
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4 The FPMs (UMons-Belgium) device for investigating the mechanical behavior of materials subjected to true triaxial compression |
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51 | (10) |
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51 | (1) |
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2 Description of the FPMs true triaxial or polyaxial cell |
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51 | (1) |
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3 Test control and stress/strain paths |
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52 | (2) |
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52 | (1) |
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53 | (1) |
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54 | (1) |
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54 | (1) |
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4 Interpretation of the data obtained from compressive tests |
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54 | (2) |
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4.1 Processing of the stress-strain data |
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54 | (1) |
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4.2 Building 3D envelopes |
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55 | (1) |
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5 Selected results for several rock materials |
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56 | (1) |
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56 | (1) |
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5.2 Identifying the behavior of a rock material |
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56 | (1) |
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5.3 Mechanical characteristics and evolution with respect to confining stresses |
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57 | (1) |
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6 Plastic behavior and limiting envelopes |
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57 | (2) |
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6.1 Hardening and dilatancy |
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57 | (1) |
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6.2 Evolution of hardening on the octahedral plane |
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57 | (2) |
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59 | (2) |
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5 Study of the failure and deformability of jointed rock masses using large rock block specimens |
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61 | (12) |
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61 | (1) |
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61 | (1) |
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1.2 Specimen size---Representative Elementary Volume |
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61 | (1) |
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2 Shear test of large rock block specimens |
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62 | (2) |
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2.1 Apparatus---Multipurpose Testing Machine for rock masses |
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62 | (1) |
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63 | (1) |
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63 | (1) |
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63 | (1) |
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3 Test results and discussion |
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64 | (6) |
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64 | (3) |
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3.2 Deformational properties |
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67 | (1) |
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3.3 Similarity rule of joint geometry in terms of crack tensor |
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67 | (3) |
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70 | (3) |
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6 The hollow cylinder test as an alternative to true triaxial loading of prismatic rock specimens |
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73 | (10) |
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73 | (1) |
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73 | (4) |
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3 Interpretation of the results obtained |
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77 | (2) |
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4 Comparisons with Triaxial tests |
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79 | (3) |
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82 | (1) |
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7 Design and fabrication of a low cost true triaxial cell for testing multiple size specimens |
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83 | (16) |
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83 | (1) |
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83 | (1) |
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83 | (1) |
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4 Sourcing hydraulic jacks |
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84 | (1) |
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5 Challenges of the true triaxial cell |
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84 | (4) |
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84 | (4) |
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5.2 Manufacturing challenges |
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88 | (1) |
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5.3 Implementation challenges |
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88 | (1) |
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6 Development of engineering plans |
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88 | (1) |
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6.1 Strengths of software |
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88 | (1) |
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88 | (1) |
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88 | (1) |
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8 Design and assembly of hydraulics |
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89 | (1) |
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9 Practical use of the cell |
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90 | (3) |
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9.1 Calibration of hydraulics |
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90 | (1) |
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9.2 Calibration of the strains on the true triaxial cell under load |
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90 | (3) |
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93 | (6) |
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93 | (1) |
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93 | (6) |
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Section 2 Test results: Strength, deformability, failure mode, permeability, acoustic emission, elastic wave velocity, ... |
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8 Mechanical behavior of rocks under true triaxial compression conditions---A review |
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99 | (40) |
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99 | (6) |
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2 True triaxial compression tests on cubic and rectangular prismatic samples |
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105 | (3) |
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2.1 True triaxial compression tests using solid pistons |
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105 | (1) |
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2.2 Compression tests using fluid membranes (flat-jacks) |
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106 | (1) |
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2.3 Compression tests using solid pistons and oil pressure |
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107 | (1) |
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3 Review of the true triaxial test results |
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108 | (9) |
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4 Strength of rocks under true triaxial compression conditions |
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117 | (14) |
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4.1 Mogi's failure hypothesis |
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117 | (1) |
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4.2 Review of the empirical data on true triaxial strength of rocks |
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118 | (13) |
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5 Summary and final remarks |
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131 | (8) |
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9 How I developed a true triaxial rock testing machine |
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139 | (20) |
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139 | (1) |
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2 Experimental research at MIT |
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140 | (1) |
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3 Development of the Mogi-type true triaxial machine |
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140 | (8) |
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3.1 Uniaxial compressive strength and sample shape |
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140 | (1) |
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3.2 Axial compressive strength and fracture angle under various confining pressures |
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141 | (7) |
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4 Design and construction of the Mogi-type triaxial testing machine |
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148 | (3) |
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5 Summary of experimental results |
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151 | (8) |
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10 True triaxial testing reveals hitherto unknown rock mechanical properties |
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159 | (8) |
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159 | (1) |
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160 | (1) |
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160 | (1) |
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161 | (1) |
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5 Fault angle and direction |
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162 | (1) |
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163 | (1) |
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7 Micromechanical features of brittle failure under TTT |
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164 | (1) |
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164 | (3) |
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11 Imaging the effect of the intermediate principal stress on strength, deformation and transport properties of rocks using seismic methods |
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167 | (14) |
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167 | (2) |
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1.1 Effect of intermediate principal stress |
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167 | (1) |
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1.2 Rock Fracture Dynamic Facility (RFDF) |
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168 | (1) |
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2 Experimental set up and testing procedure |
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169 | (3) |
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2.1 Sample preparation for true triaxial experiment |
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169 | (1) |
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2.2 True triaxial geophysical imaging cell (TTGIC) |
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170 | (1) |
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2.3 MTS polyaxial testing machine |
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171 | (1) |
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2.4 Permeability and rubber membrane skeleton---MM seal pressure system |
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171 | (1) |
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2.5 Ultrasonic wave velocity and acoustic emission |
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172 | (1) |
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172 | (6) |
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3.1 True triaxial strength and deformational responses |
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172 | (1) |
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3.2 Evolution of 3D ultrasonic wave velocities with true triaxial stresses |
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173 | (2) |
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3.3 Acoustic emission data processing, AE hits and locations |
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175 | (1) |
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3.4 3D directional permeability of Fontainebleau sandstone |
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176 | (2) |
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178 | (3) |
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12 Mechanical characteristics of rock salt determined using the Absolute Triaxial Testing (ATT) machine |
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181 | (12) |
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181 | (1) |
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2 Absolute Triaxial Testing (ATT) |
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182 | (2) |
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182 | (1) |
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182 | (1) |
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183 | (1) |
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184 | (1) |
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3.1 Stress-strain relationship |
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184 | (1) |
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184 | (1) |
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184 | (1) |
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184 | (1) |
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184 | (5) |
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4.1 Yielding stress condition |
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184 | (2) |
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4.2 Failure stress condition |
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186 | (1) |
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4.3 Failure stress condition under two different confinement stresses |
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186 | (2) |
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4.4 Time-dependent characteristics of rock salt |
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188 | (1) |
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189 | (2) |
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5.1 Octahedral shearing stress |
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189 | (1) |
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5.2 Triaxial testing results |
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189 | (1) |
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5.3 Proposed failure criterion |
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190 | (1) |
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6 Conclusions and final remarks |
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191 | (2) |
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13 Seismic wave velocity anisotropy in Westerly granite under a true triaxial compression test |
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193 | (10) |
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193 | (1) |
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2 Previous experiments under general stress state |
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194 | (1) |
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3 The true triaxial testing system and measurement methods of seismic wave velocity |
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195 | (1) |
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196 | (2) |
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198 | (4) |
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202 | (1) |
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14 Deformation and strength characteristics of Kimachi sandstone under confined compression and extension test conditions |
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203 | (10) |
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203 | (1) |
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204 | (3) |
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204 | (1) |
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204 | (1) |
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205 | (2) |
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207 | (2) |
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3.1 Stress-strain relationships |
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207 | (1) |
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3.2 Comparison of strength between compression and extension lest conditions |
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207 | (1) |
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3.3 Comparison of volumetric strain at failure between compression and extension test conditions |
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208 | (1) |
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209 | (4) |
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Section 3 Failure mechanisms and failure criteria |
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15 Estimating the parameters for a three-dimensional failure criterion for rocks from a single test |
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213 | (10) |
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213 | (3) |
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2 Three-dimensional failure criterion |
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216 | (1) |
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3 Tensile strength of rocks |
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217 | (1) |
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4 Parameter determination |
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218 | (1) |
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5 Parameter values for rocks |
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218 | (2) |
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6 Parameters from a single test |
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220 | (2) |
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222 | (1) |
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16 A new failure criterion for transversely isotropic rocks and its validation against true triaxial tests |
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223 | (12) |
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223 | (1) |
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2 Experimental observations |
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224 | (1) |
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3 The Anisotropic Matsuoka-Nakai (AMN) criterion |
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225 | (5) |
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3.1 The Normal Stress Space |
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225 | (1) |
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3.2 The original Matsuoka-Nakai criterion |
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226 | (2) |
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3.3 The Anisotropic Matsuoka-Nakai criterion |
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228 | (2) |
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4 Validation of the AMN criterion |
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230 | (3) |
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233 | (2) |
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17 Stress path dependency of failure mechanism from the viewpoint of dilatant behavior |
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235 | (8) |
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235 | (1) |
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2 Testing material and procedure |
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236 | (2) |
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238 | (2) |
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4 Discussion and concluding remarks |
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240 | (3) |
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18 Weakness plane model to simulate effects of stress states on rock strengths |
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243 | (8) |
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243 | (1) |
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243 | (2) |
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245 | (1) |
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4 Uniaxial tension and Brazilian tests |
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246 | (1) |
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246 | (2) |
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248 | (3) |
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Section 4 Applications to geoengineering and geosciences |
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19 A modified true triaxial test system that allows a specimen to be unloaded on one surface |
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251 | (16) |
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251 | (1) |
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2 The mechanism of rockbursts and experimental setup |
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252 | (3) |
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2.1 The mechanism of rockbursts |
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252 | (1) |
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2.2 Functions and requirements of the experimental setup |
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252 | (3) |
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3 Rockburst experiment system for single face unloading |
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255 | (1) |
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4 Information measuring system for rockburst experiments |
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256 | (2) |
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4.1 Data acquisition system |
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256 | (1) |
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4.2 Acoustic emission monitoring system |
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256 | (1) |
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4.3 High-speed image recording system |
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256 | (1) |
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4.4 Infrared thermal monitoring system |
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257 | (1) |
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5 Experimental result analyses |
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258 | (6) |
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5.1 Distribution of rockburst sampling sites |
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258 | (2) |
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5.2 Characteristics of the unloading rate on a single surface |
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260 | (1) |
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5.3 Rockburst time and rockburst classification |
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261 | (1) |
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5.4 Analysis of the typical results of rockburst tests |
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261 | (3) |
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264 | (3) |
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20 Seismic quiescence and foreshock activity preceding the 2007 Niigata-ken Chuetsu-oki earthquake (M6.8) in Japan |
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267 | (14) |
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267 | (1) |
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2 Long term earthquake forecasting |
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267 | (1) |
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3 Precursory seismicity before the 2007 main shock |
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268 | (7) |
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269 | (2) |
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271 | (1) |
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272 | (3) |
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4 Discussion (predictive information) |
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275 | (1) |
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5 The Kashiwazaki-Kariwa nuclear power plants and the 2007 Chuetsu-oki earthquake (M6.8) |
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276 | (1) |
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277 | (4) |
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Appendix 1 Search for seismic quiescence |
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278 | (2) |
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280 | (1) |
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21 Stress state of the on the mechanical behavior of coals under true triaxial compression conditions |
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281 | (12) |
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281 | (1) |
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282 | (1) |
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282 | (9) |
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3.1 Alteration in the mechanical performance of coals in different stress states |
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282 | (3) |
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3.2 The effect of the stress state on methane emission kinetics from coals |
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285 | (2) |
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3.3 The effect of moisture content on the mechanical performance of coals |
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287 | (4) |
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291 | (2) |
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22 Experimental study of wellbore deformation in a deep claystone formation |
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293 | (8) |
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293 | (1) |
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2 Preparation of the experimental apparatus |
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294 | (1) |
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3 Apparatus for measuring wellbore deformation and the triaxial loading system |
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295 | (1) |
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4 Analysis of testing results |
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296 | (1) |
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296 | (5) |
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23 Triaxial loading system as a tool for solving geotechnical problems of oil and gas production |
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301 | (10) |
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1 Study of the effect of stress-strain behavior on rock permeability |
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301 | (6) |
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1.1 Description of the apparatus |
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301 | (4) |
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1.2 Findings of the experimental study of the effect of stress-strain behavior on the filtration properties of rocks |
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305 | (2) |
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2 Directional and horizontal wellbore stabilization |
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307 | (3) |
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310 | (1) |
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24 A true triaxial stress cell (TTSC) used for simulations of real Held operations in the lab |
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311 | (12) |
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311 | (1) |
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312 | (1) |
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3 Experiment examples using the TTSC |
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313 | (5) |
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313 | (2) |
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315 | (1) |
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316 | (2) |
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318 | (5) |
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25 Fractographical analysis of the failure surfaces from triaxial extension tests on Kimachi sandstone |
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323 | (8) |
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323 | (1) |
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2 Test specimens and method |
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324 | (1) |
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2.1 Geology of the Kimachi sandstone |
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324 | (1) |
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324 | (1) |
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324 | (1) |
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4 Fracture surface measurement using digital photogrammetry |
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325 | (3) |
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4.1 Digital photogrammetry |
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325 | (1) |
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4.2 Application to fracture surfaces |
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326 | (1) |
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327 | (1) |
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4.4 Roughness of tensile fracture |
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327 | (1) |
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328 | (1) |
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5.1 Formation of shear fracture |
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328 | (1) |
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5.2 Formation of tensile fracture |
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328 | (1) |
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6 Summary and conclusions |
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329 | (2) |
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26 Energy conversion and damage evolution of rocks under cyclic loading conditions |
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331 | (12) |
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331 | (1) |
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2 Thermodynamic analysis during rock deformation and failure |
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332 | (5) |
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2.1 Energy conversion and thermodynamic state |
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333 | (2) |
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2.2 Rock damage and energy dissipation |
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335 | (2) |
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337 | (1) |
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3.1 Rock samples and testing machine |
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337 | (1) |
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337 | (1) |
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4 Experimental results and discussion |
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338 | (2) |
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338 | (1) |
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338 | (1) |
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4.3 Damage evolution and failure criterion |
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339 | (1) |
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340 | (3) |
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27 Superbrittle failure regime of rocks at conventional triaxial compression |
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343 | (8) |
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343 | (1) |
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2 Brittleness variation with confining pressure for rocks of different stiffness |
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344 | (2) |
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3 Mechanism of rock embrittlement at high confining pressure |
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346 | (3) |
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349 | (2) |
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28 Depth-dependent mechanical parameters of basalt: An experimental study |
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351 | (12) |
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351 | (1) |
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2 Description of laboratory experiments |
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352 | (2) |
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2.1 Sampling and sample preparation |
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352 | (1) |
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353 | (1) |
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2.3 Experimental procedure |
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353 | (1) |
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3 Experimental results and analysis |
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354 | (6) |
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3.1 Uniaxial compression test results and analysis |
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354 | (2) |
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3.2 Brazilian test results and analysis |
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356 | (1) |
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3.3 Conventional triaxial compression lest results and analysis |
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357 | (3) |
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360 | (3) |
Subject index |
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363 | (4) |
Book series page |
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367 | |