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Proceedings Papers

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

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-055
... paths. In that sense the system is close to percolation threshold. Upstream Oil & Gas composite sphere coefficient Reservoir Characterization pore pressure Christiansen mechanical property effective stress flow in porous media porous medium porosity Dullien expression...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-051
... that is based on the slope stability, the later has been employed as the substitute of the former to increase the specimen so as to reveal the relationship between the angle of shearing resistance of the rock and the fissuring assembly on the slope together with the coefficient of rock integrity. When...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-065
... and generation and evolution of gouge material in rock fractures can play a key role in fracture mechanical and transport properties in terms of friction coefficient, shear strength, fluid transmissivity, solute retardation coefficient and etc. (Jing & Stephansson 2007; Zhao et al. 2012). However...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-032
... Engineering boundary condition buffer waste management axial stress coefficient repository flexible-swelling test specimen saturation underground repository infiltration equilibrium stiffness coefficient bentonite University load ring deformation oedometer cell void ratio...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-079
... climate change modeling Reservoir Characterization trajectory Rock mechanics coefficient rockfall Simulation computed result particle DDA method numerical model algorithm Upstream Oil & Gas restitution international journal mass method mass point equation friction angle...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-099
..., Li & Low 2010, among others, using elastic-perfectly-plastic model. This paper deals with more complex constitutive model, namely elastic-strain-softening model. Further investigations are conducted in the present study. Artificial Intelligence criterion coefficient Reservoir...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-110
...: For an analysis of the stability of an underground excavation in two dimensional space, the convergence confinement tunnel design process is usually applied to investigate the interaction of support and ground of the excavation. In order to achieve the design process, a coefficient of stress release is defined...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-151
... to assess the groundwater dropdown and stability of the caverns according to the test results. 5 numerical cases with different permeability coefficients were performed to investigate the influence of permeability coefficient. The simulation results indicated that the operation period of the storage caverns...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-092
... out, Finally, parametric study is conducted for the effects of the joints spacing, the joint number, JCS and JRC on the transmission for the P-wave propagation across parallel joints. The results reveal that the magnitude of transmission coefficient not only decreases with the increasing of joints...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-153
... and economic. Reservoir Characterization Engineering dynamic strength reduction method Upstream Oil & Gas safety coefficient Earthquake reservoir simulation displacement Reduction Method research and development seismic design calculation time-history curve coefficient reduction...
Proceedings Papers

Paper presented at the ISRM SINOROCK 2013, June 18–20, 2013
Paper Number: ISRM-SINOROCK-2013-158
... with a sleek surface, the collocation of blasting positions and dynamite volume. factor analysis parameter optimization coefficient tunnel 4 machine learning resistance factor-regression model historical data Artificial Intelligence deviation regression analysis follow equation variance...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-075
... aperture network model dfn domain length hydraulic fracturing complex reservoir variance plane hydraulic behavior discrete fracture network Upstream Oil & Gas fracture network coefficient rock mass geometric characteristic rev value dfn analysis hydraulic conductivity tensor...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-046
... loading test coefficient standard practice ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods 1 INTRODUCTION Rock salt around storage caverns will subject to cycles of loading due to the fluctuation of cavern pressures during...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-005
... displacement load platen Rock stress estimation Upstream Oil & Gas stress state Probe stress measurement Reservoir Characterization stress component coefficient determination steel pipe reservoir geomechanics interface fracture friction shell borehole jack borehole wall...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-150
... neural network correlation artificial neural network metals & mining node specific charge Artificial Intelligence protodyakonov index prediction machine learning Chakraborty input parameter application coefficient test data excavation tunnel tunnel area ANN model...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-085
... Reservoir Characterization Fluid Dynamics three-dimensional failure process variation hydraulic fracturing rock element Simulation Upstream Oil & Gas modeling damage variable coefficient fluid flow elastic damage constitutive law permeability evolution mechanics flow...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-090
... wn 21 ) (2) in which s is the density of grains, is the porosity, n yzxz , are shear stresses, K is the obstruction coefficient, and kK µ= , µ and are the viscosity coefficient and the physical permeability coefficient respectively, is the velocity of water in z direction. k w...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-021
... by using 59 series of accurate triaxial test datasets which are belong to 20 different rock types selected from the literature. It has been shown that the proposed criterion is capable of predicting the triaxial behavior of rocks in both tensile and compressive regions. There are two coefficients...
Proceedings Papers

Paper presented at the ISRM International Symposium on Rock Mechanics - SINOROCK 2009, May 19–22, 2009
Paper Number: ISRM-SINOROCK-2009-112
..., is the linear thermal expansion coefficient of the skeleton, F is the body force vector, D is either the elasticity tensor or the elastoplastic tensor, depending on the constitutive ABSTRACT This paper presents a new FEM approach and computer code for modeling fully coupled thermo- hydro-mechanical processes...

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