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Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-049
... got the rock specimens with intrinsic fracture, then carried out seepage tests with high seepage pressure (>1 MPa), in order to study the seepage regulation with different seepage pressures and confining pressures. The result stated that the relation between coefficient of permeability and net...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-059
...;Yumlu 2001; Caceres Doerner 2005). metals & mining Displacement Contour CRF stope sudden loss knowledge management Simulation contour loading Canada strength vertical stress contour sublevel fracture stope confinement MPa secondary stope tensile stress development Rock...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-020
... different confining pres- sures ( 3 = 2 MPa and 6 MPa) and pore pressures (p = 0 MPa, and 0.5 MPa). After, a series of multiple- step triaxial creep tests were performed under the same stress ( 3 and p) conditions at a constant temperature and humidity so that we can investigated the coupled effect...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-104
... stress mechanical characteristic production monitoring renewable energy hydropower station analytical solution analytical method equation thickness direction high-temperature tunnel thermal conductivity MPa tensile stress tunnel compressive stress internal water pressure Rock...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-012
... Testing failure mode MPa porous sandstone compaction band Haimson reservoir geomechanics criterion sandstone Bentheim sandstone failure-plane angle Magnitude Rock Characterisation, Modelling and Engineering Design Methods Feng, Hudson & Tan (Eds) © 2013 Taylor & Francis Group, London, ISBN...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-150
... 50 SE to 85 SE 15 J4 160 65 SW to 85 SW 8 Random R1 130 55 SW to 40 NE 8.5 joints R2 190 60 SE to 75 NW 12.5 R3 30 60 NW 2 R4 55 30 NW to 60 SE 6 Table 2. The ground stress test value. Depth SH Sh Sv (m) (Mpa) (Mpa) (Mpa) SH/Sv 80 3.75 0.83 1.44 NW80.5 2.60 90 4.16 1.22 1.69 NW80.5 2.46 100 4.57...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-086
... result hydropower station rock mechanics parameter mechanical property rock mass jointed rock mass wellbore integrity Engineering strength parameter MPa dip angle joint rock mass stress-strain curve connectivity rate Rock Characterisation, Modelling and Engineering Design Methods Feng...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-135
... metals & mining displacement Earthquake machine learning ground transportation optimum design rail transportation design plan production cost slope rock mass MPa Artificial Intelligence stability analysis analysis result rock mass mechanical parameter safety limit...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-043
... and are unable to regulate the incoming flows. Reservoir Characterization testing programme horizontal stress excavation construction powerhouse cavern Test Location MPa interpretation stress assessment information borehole underground powerhouse Picote II river reservoir geomechanics...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-121
..., is divided the KE-2 vein and KE-3 vein (Figure 3). stope numerical analysis rock fill Reservoir Characterization extensometer stope stability reservoir geomechanics dimension stability vein backfill pillar evaluation stope dimension metals & mining displacement ke-3 vein MPa...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-052
... Artificial Intelligence failure criteria Reservoir Characterization machine learning anisotropy index failure criterion reservoir geomechanics strength Porce III Upstream Oil & Gas criterion gneiss envelope rock material MPa powerhouse chamber mohr-coulomb criterion...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-068
...) L (m) c (MPa) RQD cm (MPa) q max (MPa) Reference 1 Gypsum 1,064 4.2 2.1 100 2.09 6.51 Leung & Ko (1993) 2 Gypsum 1,064 4.2 4.2 100 4.17 10.9 Leung & Ko (1993) 3 Gypsum 1,064 4.2 5.4 100 5.36 15.7 Leung & Ko (1993) 4 Gypsum 1,064 4.2 6.7 100 6.65 16.1 Leung & Ko (1993) 5 Gypsum 1,064 4.2 8.5 100...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-012
...-strength for siliceous-lime marble, the regularity of electrical resistance changing with stress was explored through experiment measuring. Reservoir Characterization resistance international journal MPa electrical resistance siliceous-lime marble marble crack-electrical resistance variation...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-177
.... The Q and S tunnels are aligned at a large angle to the NW joint set, which is also found to be the most water bearing set. In addition, there is a gently dipping joint set. The major horizontal stress is in the order of 28 30 MPa at the 450-m level, trending NW SE, sub-parallel to the NW joint set...
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...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-008
... reservoir geomechanics portal investigation Reservoir Characterization RMR highway tunnel structural geology strength parameter rock mass rock mass classification MPa limestone portal slope stability assessment flysch Upstream Oil & Gas tunnel sandstone agglomerate Shear...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-024
... stress (in the range of 30- 65 MPa) and at temperatures in the range of 250 -350 c° . Assuming a power law relation between the creep rate and applied stress, values of 3.28 and 4.72 are obtained for stress exponent (n) at low and high temperatures whereas the range for Q value (activation energy...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-054
... pressure due to previous plastic deformations in the specimen for various types of rock. will be desirable and give more validity to this test method. As a result, in this study, attempts are made to propose a Multiple-step Loading Damage Model, hereafter denoted as MLD model, on a mudstone (qu=6-8 MPa...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-049
... was founded in total duration of the tests regardless of the effective confining pressure value and the pore pressure decreased rapidly after the peak stress for the siliceous mudstone. The diatomaceous mudstone yielded under hydrostatic pressure of 10 MPa in isotropic consolidation. This yielding...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-009
... the fracturing characteristics of the rocks. Triaxial tests are performed at five different confining pressures, namely 5, 10, 20, 30 and 40 MPa. Petrographical analysis is done to study the physical fracturing degree and mineralogy of the samples. In addition, the physical properties of the rocks are determined...

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