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Keywords: flaw
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Proceedings Papers

Paper presented at the ISRM Regional Symposium - 12th Asian Rock Mechanics Symposium, November 22–26, 2022
Paper Number: ISRM-ARMS12-2022-006
... Abstract The multiple flawed rock mass is a common feature and is of fundamental interest for rock engineers. Several underground excavation and mining work is carried out in these rock masses. The correct understanding of the mechanical characteristics of the flawed rock mass, especially...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-328
... Abstract Damage and fracture of rocks is a comprehensive result of strain energy dissipation and release. In order to study the energy evolution mechanism of hard brittle rock masses during failure process, uniaxial compression tests on the granite specimens with a single pre-existing flaw...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-409
... propagation artificial intelligence environmental science 861 geology interface hydraulic fracturing society iop publishing iop conf simulation boundary displacement geological subdiscipline flaw node geologist reservoir geomechanics conference resistance calculation cellular...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - 11th Asian Rock Mechanics Symposium, October 21–25, 2021
Paper Number: ISRM-ARMS11-2021-529
... simulated using heterogeneous Abaqus models. The simulated rock specimens included a central circular hole with open or closed flaws positioned at different inclination angles. Results showed different behaviours for open and closed cracks under pure compression, while their behaviours under shear...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-289
... as internal flaws with the same properties as the intact rock. The model used in this section is based on the general toppling model proposed by Nichol et al. (2002). The main set of discontinuities dip into the slope at an angle of 80° from the horizontal. As shown in Figurer 1, the flaws were generated...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-025
... Abstract En-echelon fractures have been often identified in faults in rocks at different length scales. To enhance our understanding of the role of en-echelon cracks in the formation of a shear rupture, blocky Carrara Marble specimens, containing multiple artificial en-echelon flaws (about 13...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-068
... Abstract Uniaxial compression tests were carried out for the gypsum samples containing pre-existing flaws in non-overlapping geometry. The geometries of prepared samples were set to have same strength by the simple stress analysis derived only from the sample's geometries. Compared...
Proceedings Papers

Paper presented at the ISRM International Symposium - 8th Asian Rock Mechanics Symposium, October 14–16, 2014
Paper Number: ISRM-ARMS8-2014-054
... Abstract Pre-existing flaws can make a big difference in rock strength and deformation, and they always cause strength reduction obviously or lead to global failure of rocks under loadings. Rock failure is induced by many micro-fractures intrinsically, so the investigation on progressive...
Proceedings Papers

Paper presented at the ISRM International Symposium - 5th Asian Rock Mechanics Symposium, November 24–26, 2008
Paper Number: ISRM-ARMS5-2008-145
...ISRM International Symposium 2008 5th Asian Rock Mechanics Symposium (ARMS5), 24-26 November 2008 Tehran, Iran 1191 CRACK PROPAGATION MODELING OF ROCK-LIKE MATERIALS FROM SURFACE FLAW UNDER UNIAXIAL COMPRESSION S.B.TANG1, C.A. TANG1 R.H.C. WONG2, Z.Z. LIANG1, Y.B. ZHANG1, L.C. LI1, T.H. MA1 1School...

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