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Keywords: peak strength
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Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-039
... that the specimens could be heated to the assigned value from the outside to the inside and then the specimens were taken out and cooled down in the air. The experiment used displacement control mode, and the loading rate is 0.0015 mm/s. reservoir geomechanics Rock Deformation peak strength plastic...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-022
... length and confining pressure (as shown in figure a, b), fissure inclination has a little effect on the peak strength of the rock samples, the impact of the fissure inclination to the peak strength decreases as the confining pres- sure increases. The two rock samples that the fissure length is 12 mm...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-115
.... Reservoir Characterization Optimization Design peak strength mechanics method strength class III Research Method hydraulic fracturing damage depth characteristic damage characteristic underground research laboratory rock mass tunnel Upstream Oil & Gas Rock mechanics low velocity zone...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-019
... testing under confining pressures to 4 MPa (8 steps). The peak strengths of various instances thus obtained are shown in table 2. Table 2: The peak axial strength, samples under various confining pressures 3(MPa) 0.5 1 Intact 1(MPa) 1 1 .6 7 1 3 .3 2 0.00 00 1.00 06 2.00 06 3.00 06 4.00 06 5.00 06...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-087
... is discussed in terms of stress-strain curves, fracture patterns as well as peak strength. Then another six true triaxial compression tests are undertaken under true triaxial loading stress to study the intermediate principal stress effect. In conventional triaxial compression tests, the orientation...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-098
... model Poisson peak strength rotation angle fracture Simulation discontinuous rock mass MPa rock mass ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods 1 INTRODUCTION Although the evaluation of the mechanical properties...

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