Failure Process Simulation of Interlayered Rocks under Compression
Anisotropy in strength and deformation of rock mass induced by bedding planes and interlayered structures is a vital problem in rock mechanics and rock engineering. The modified rigid block spring method (RBSM), initially proposed for modeling of isotropic rock, is extended to study the failure proc...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/9615457 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832552538336919552 |
|---|---|
| author | Chi Yao Sizhi Zeng Jianhua Yang |
| author_facet | Chi Yao Sizhi Zeng Jianhua Yang |
| author_sort | Chi Yao |
| collection | DOAJ |
| description | Anisotropy in strength and deformation of rock mass induced by bedding planes and interlayered structures is a vital problem in rock mechanics and rock engineering. The modified rigid block spring method (RBSM), initially proposed for modeling of isotropic rock, is extended to study the failure process of interlayered rocks under compression with different confining pressures. The modified rigid block spring method is used to simulate the initiation and propagation of microcracks. The Mohr–Coulomb criterion is employed to determine shear failure events and the tensile strength criterion for tensile failure events. Rock materials are replaced by an assembly of Voronoi-based polygonal blocks. To explicitly simulate structural planes and for automatic mesh generation, a multistep point insertion procedure is proposed. A typical experiment on interlayered rocks in literature is simulated using the proposed model. Effects of the orientation of bedding planes with regard to the loading direction on the failure mechanism and strength anisotropy are emphasized. Results indicate that the modified RBSM model succeeds in capturing main failure mechanisms and strength anisotropy induced by interlayered structures and different confining pressures. |
| format | Article |
| id | doaj-art-ec65e6ca40f84ef09fe174f96e213d5d |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-ec65e6ca40f84ef09fe174f96e213d5d2025-02-03T05:58:34ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/96154579615457Failure Process Simulation of Interlayered Rocks under CompressionChi Yao0Sizhi Zeng1Jianhua Yang2School of Civil Engineering and Architecture, Nanchang University, Nanchang 330033, ChinaTechnology Center, Zhongmei Engineering Group Ltd., Jiangxi, ChinaSchool of Civil Engineering and Architecture, Nanchang University, Nanchang 330033, ChinaAnisotropy in strength and deformation of rock mass induced by bedding planes and interlayered structures is a vital problem in rock mechanics and rock engineering. The modified rigid block spring method (RBSM), initially proposed for modeling of isotropic rock, is extended to study the failure process of interlayered rocks under compression with different confining pressures. The modified rigid block spring method is used to simulate the initiation and propagation of microcracks. The Mohr–Coulomb criterion is employed to determine shear failure events and the tensile strength criterion for tensile failure events. Rock materials are replaced by an assembly of Voronoi-based polygonal blocks. To explicitly simulate structural planes and for automatic mesh generation, a multistep point insertion procedure is proposed. A typical experiment on interlayered rocks in literature is simulated using the proposed model. Effects of the orientation of bedding planes with regard to the loading direction on the failure mechanism and strength anisotropy are emphasized. Results indicate that the modified RBSM model succeeds in capturing main failure mechanisms and strength anisotropy induced by interlayered structures and different confining pressures.http://dx.doi.org/10.1155/2018/9615457 |
| spellingShingle | Chi Yao Sizhi Zeng Jianhua Yang Failure Process Simulation of Interlayered Rocks under Compression Advances in Civil Engineering |
| title | Failure Process Simulation of Interlayered Rocks under Compression |
| title_full | Failure Process Simulation of Interlayered Rocks under Compression |
| title_fullStr | Failure Process Simulation of Interlayered Rocks under Compression |
| title_full_unstemmed | Failure Process Simulation of Interlayered Rocks under Compression |
| title_short | Failure Process Simulation of Interlayered Rocks under Compression |
| title_sort | failure process simulation of interlayered rocks under compression |
| url | http://dx.doi.org/10.1155/2018/9615457 |
| work_keys_str_mv | AT chiyao failureprocesssimulationofinterlayeredrocksundercompression AT sizhizeng failureprocesssimulationofinterlayeredrocksundercompression AT jianhuayang failureprocesssimulationofinterlayeredrocksundercompression |