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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
... of Laurentian granite BD samples (with static BD tensile strength of 12.8 MPa) under the hydrostatic confinement of 0 MPa, 5 MPa, 10 MPa, 15 MPa, and 20 MPa were tested under different loading rates. The result shows that the dynamic tensile strength increases with the hydrostatic confinement stress. It is also...
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-2016-10
... 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-2016-21
... anisotropic angles. Further, the petrophysical test results are correlated with the mechanical properties. These properties and correlations will further help in increasing the yield of these rocks. Reservoir Characterization oil shale strength shale oil Upstream Oil & Gas wave velocity...
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
... cement joint incident bar experiment small bar compression Engineering incident wave three-bar incidence compression wave deformation Reservoir Characterization strength dynamic compression specimen waveform Upstream Oil & Gas joint surface shear wave transmission bar...
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
... 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 direction anisotropy principal...
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
... Upstream Oil & Gas incident bar diameter determination dynamic shear strength Reservoir Characterization criteria dynamic tri-axial punch test result internal friction angle shear strength reservoir geomechanics Rock mechanics cohesion dynamic shear stress peak dynamic shear...
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
... ABSTRACT: The specimens under the conditions of uniaxial compression, different gas-pressure conditions (0.0, 0.5, 1.0, and 1.5 MPa), sample strengths, deformation, energy, count of acoustic-emission signals, and laws influenced by gas pressure were investigated by self-developed equipment...
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-2016-24
... 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...
Proceedings Papers
Paper presented at the ISRM 2nd International Conference on Rock Dynamics, May 18–19, 2016
Paper Number: ISRM-ROCDYN-2016-71
... (less than frictional strength). Such low shear resistance of the fan-head determines the transient strength of intact rocks during the failure process. The paper discusses briefly main principles of the fan-mechanism and proposes an improved model of strength profiles for hard rocks involving the fan...
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