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Keywords: plastic zone
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Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-159
...-absorbing rock bolts should be used in burst-prone rock masses. Upstream Oil & Gas isrm international symposium plastic zone Reservoir Characterization strength rock bolt length bolt length reservoir geomechanics Thickness asian rock mechanics symposium 29 support system deformation...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-135
... arch could bear a large axial force and generate large inner pressure acting on the ground. The results also showed that the instability of the tunnel structure was more likely to occur in stratified rocks because a larger plastic zone formed in stratified rocks than in massive rocks for the same...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-157
... methane fem stength reduction theoretical solution Reservoir Characterization coal seam gas limit state floor failure plastic zone reduction face wall coal seam floor failure simulation coal bed methane Upstream Oil & Gas Thickness boundary stratum Failure Simulation in the Coal...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-168
... interlocked joint set in most part. Factor of safety using finite difference code, FLAC 3D and RocSupport software is compared. The plastic zone radius and maximum displacement around the two D-shape tunnels are determined and new support system is proposed. In this project, the excavation and support system...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 7th Asian Rock Mechanics Symposium, October 15–19, 2012
Paper Number: ISRM-ARMS7-2012-169
... cm and 15 cm concrete lining respectively. The steel reinforcement percentage is 1.5 % for both sections. It should be noted, for weak rocks, using the rock bolts is not usually helpful duo to the large plastic zone caused by excavation but the use of lattice girders for temporary support is very...
Proceedings Papers

Paper presented at the ISRM International Symposium - 6th Asian Rock Mechanics Symposium, October 23–27, 2010
Paper Number: ISRM-ARMS6-2010-088
... machine learning structural geology Artificial Intelligence empirical method numerical method Manipura diversion tunnel reservoir geomechanics Engineering stability analysis rock mass classification system support system plastic zone Reservoir Characterization Upstream Oil & Gas...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-084
... annulus. reservoir geomechanics rockbolt grouted rockbolt pretension load displacement tunnel convergence rock mass tunnel installation Reservoir Characterization active grouted rockbolt Upstream Oil & Gas tunnel face Strength Criterion rock bolt plastic zone ground response...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-108
... vertical direction. It is very simple and no damping and boundary condition different from static analysis require. It can provide an estimate of structure reaction through dynamic loading. Coefficient For both vertical and horizontal loading is equal to 0.3 [9]. in figures 5 &6 the plastic zone and...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-092
... in early stage but it becomes gradual with time. U~EC simulation for LNG cavern shows that the range of the plastic zone induced by low temperature is approximately equal to a Width of the cavern. I. INTRODUCTION new properties arc input at arbitrary temperature by the correlation. As the consumption...
Proceedings Papers

Paper presented at the ISRM International Symposium - 2nd Asian Rock Mechanics Symposium, September 11–14, 2001
Paper Number: ISRM-ARMS2-2001-095
... Reservoir Characterization displacement stress ratio Tunnel Stability joint stiffness nuclear waste repository rock strength plastic zone fractional factorial design sensitivity analysis maximum principal stress stability repository reservoir geomechanics important parameter...

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