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Keywords: strength
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Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-25
... hydraulic fracturing Rock mechanics international journal rock material Reservoir Characterization tensile failure brazilian disc specimen MPa Upstream Oil & Gas reservoir geomechanics incident bar dynamic tensile strength increase strength rock sample dynamic tensile strength...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-20
... Reservoir Characterization Upstream Oil & Gas classification diameter soft rock structural geology underground structure MPa strength tunnel axis different strain rate loading area strain rate rock mass deformation behavior different location unlined tunnel tunnel Rock Dynamics: From...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-21
... and the elastic constants are expressed as a function of organic content and stress levels. Chong et al. (1979, 1980) and Zeuch 1983, proposed the empirical relations between uniaxial compressive strength, organic content and temperature. Kumar and Rao (2015) compared the mechanical and physical properties of oil...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-16
..., assuming that rock infinitesimal strength to obey two Weibull distribution parameters derived considering thermal effect of damage evolution equation and damage constitutive equation. 1 INTRODUCTION Rock is a different cement and mineral particles and contains a lot of micro-cracks and micro-holes...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-27
... INTRODUCTION Rock is one of the most widely used materials in geotechnical engineering, civil engineering, hydraulic engineering, etc. Natural rocks are complex medium with such defects as cracks and pores at the meso and micro scale, and joints at the macro scale. Quasi-static and dynamic strength properties...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-47
... of evolution equation between existed models were also conducted to validate the accuracy and robust of the model. A good agreement was found between the simulated results and laboratory observations (e.g. failure modes, peak strength and cracks location). Different methods are proposed to detect the damage...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-17
... under one same depth, i.e. 360 m, therefore, the testing results could be considered much more representative of the granite. The tension strength is about 11.75 MPa, and the uniaxial compression strength is 175 MPa or so, which is about 14 times than the tension strength. With the dynamic conditions...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-08
... orientation anisotropic gneiss velocity data experiment sketch show specimen Upstream Oil & Gas variation loading step velocity measurement foliation plane loading step 8 stress path MPa axis Reservoir Characterization strength plane maximum stress direction stress...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-43
... geomechanics Upstream Oil & Gas strength Reservoir Characterization Engineering classification mohr-coulomb failure criterion Earthquake Geophy fluid injection extraction seismicity Rock mechanics plane loading pore pressure mechanism frictional coefficient Rock Dynamics: From Research...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-53
... burst prevention. Reservoir Characterization strength experiment soft rock compression Engineering stress wave dynamic loading constitutive model structural geology rock element transmission bar loading strain rate deformation rock sample element mechanics Upstream Oil & Gas...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-23
... ABSTRACT: An experimental investigation was carried out on the Hawkesbury sandstone to study effects of loading rate on the peak strength and deformability during uniaxial monotonic compressive testing. Axial load and axial and lateral deformations were measured precisely from start of loading...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-18
... ABSTRACT: The shear strength of rocks is crucial when designing geo-structures, such as rock slope, tunnels, and underground space. Many researchers have suggested methods for determining the shear strength of rocks and concrete using a direct shear-box test, punch shear test, etc. In order...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-34
... ABSTRACT: The strength of rock materials is largely affected by water, and the static properties have been widely studied before, while there is virtually no data for dynamic compressive strength of saturated rock at different strain rates. In order to comprehensively investigate the effect...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-29
... Upstream Oil & Gas elastic energy MPa lateral strain Reservoir Characterization coal specimen characteristic acoustic emission characteristic strength specimen rockburst tendency metals & mining AE signal gas-containing coal sample gas pressure different gas pressure...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-09
... is observed to study the dynamic behavior of the rock. The dynamic increase in strength of the rock with respect to the static strength of the rock is observed for different strain rates and a correlation for dynamic increase factor with respect to strain rate is given herein. Upstream Oil & Gas...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-54
... simulation strength calculation shockwave Thickness explosive shockwave Upstream Oil & Gas shockwave transmission equipment shock response Modeling & Simulation explosion cabin wall thickness cabin structure transmission conclusion shock response equation numerical simulation study...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-69
... different rocks with uniaxial compressive strength values ranging between 7–215 MPa were tested to measure pre-peak and post-peak stress-strain relations. A stiff servo-controlled machine was used to undertake lateral displacement controlled tests. Postpeak stress-strain relations were obtained accurately...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-10
... loading Reservoir Characterization strength cavendish laboratory braithwaite 2009 geological material information investigation shear strength compression elastic limit fracture Microstructure Rock Dynamics: From Research to Engineering Li et al. (Eds) © 2016 Taylor & Francis Group...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-24
... ABSTRACT: This study aims to explore the effects of impact loads on the failure types and the peak dynamic strength of artificial rocks contained a single plane of weakness with orientation angles of 45°, 60°, 75° and 90°. A series of uniaxial compression tests by Split Hopkinson Pressure Bar...
Proceedings Papers

Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-03
... burst control. 1 INTRODUCTION Bolt/Cable-supporting technology is one of effective quasi-supporting means in tunnel, which can reinforce the surrounding rock structure effectively, strengthen the roadway structural strength and improve the stability of surrounding rock significantly, and has...

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