Stress Analysis for Rock Mass Failure with Offset Joints |
| |
Authors: | Omer Mughieda Maher T Omar |
| |
Institution: | (1) Department of Civil and Environmental Engineering, University of Sharjah, Sharjah, United Arab Emirates;(2) Department of Civil Engineering, Intelligent Systems and Infrastructure & Energy and Environment Research Groups, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates |
| |
Abstract: | Two-dimensional finite element model was created in this work to investigate the stress distribution within rock-like samples
with offset open non-persistent joints under uniaxial loading. The results of this study have explained the fracture mechanisms
observed in tests on rock-like material with open non-persistent offset joints (Mughieda and Alzo’ubi, Geotech Geol Eng J
22:545–562, 2004). Finite element code SAP2000 was used to study the stresses distribution within the specimens. Four-noded
isoperimetric plain strain element with two degrees of freedom per node, and the three-noded constant strain triangular element
with two degree of freedom per node were used in the present study. The results of the present study showed that the tensile
stress in the bridge area caused coalescence for specimens with overlapped preexisting cracks (joints) while the coalescence
of the secondary cracks, due to shear stress, caused the failure of specimens with non-overlapping cracks. |
| |
Keywords: | Finite element Open offset rock joint SAP2000 Uniaxial loading Stress distribution |
本文献已被 SpringerLink 等数据库收录! |
|