Simulation of collapse failure process of rock slope based on the smoothed particle hydrodynamics method
The limit equilibrium method (LEM) or finite element method (FEM) for slope problems most frequently focusses on the stability analysis. There are, however, still some problems with the LEM or FEM when considering damage and failure evolution of a rock slope because of the distortion of mesh. In thi...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-05-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.982658/full |
| _version_ | 1827953683007012864 |
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| author | Xiaoqiang Zhang Xiaoqiang Zhang Xiong Song Shunchuan Wu Shunchuan Wu |
| author_facet | Xiaoqiang Zhang Xiaoqiang Zhang Xiong Song Shunchuan Wu Shunchuan Wu |
| author_sort | Xiaoqiang Zhang |
| collection | DOAJ |
| description | The limit equilibrium method (LEM) or finite element method (FEM) for slope problems most frequently focusses on the stability analysis. There are, however, still some problems with the LEM or FEM when considering damage and failure evolution of a rock slope because of the distortion of mesh. In this work, a mesh-free particle approach, named the smoothed particle hydrodynamics (SPH) method, is presented and is improved to analyze the damage and failure process of a rock slope. In order to better describe the cause and mechanism of brittle failure for a rock slope, the plastic factor was suggested and introduced into the SPH algorithm, and the conservation equations of SPH for brittleness characteristics were obtained. Based on the variation of displacement and time, an effective criterion was proposed to define the factor of safety in SPH simulation. The Drucker-Prager Mohr-Coulomb strength criterion was implemented into the SPH algorithm to describe the elastic-plastic behavior. Then, three rock-slope models with different precast cracks were analyzed to illustrate the performance of the proposed method. It is shown that the proposed SPH algorithm can be effectively applied in the prediction of the deformation and failure process of rock slope. |
| first_indexed | 2024-04-09T14:17:22Z |
| format | Article |
| id | doaj.art-69371be6a1df4c6f86e5852a116facd0 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-09T14:17:22Z |
| publishDate | 2023-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-69371be6a1df4c6f86e5852a116facd02023-05-05T05:52:08ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-05-011010.3389/feart.2022.982658982658Simulation of collapse failure process of rock slope based on the smoothed particle hydrodynamics methodXiaoqiang Zhang0Xiaoqiang Zhang1Xiong Song2Shunchuan Wu3Shunchuan Wu4Key Laboratory of Ministry of Education of China for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, ChinaFaculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, ChinaFaculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, ChinaKey Laboratory of Ministry of Education of China for Efficient Mining and Safety of Metal Mines, University of Science and Technology Beijing, Beijing, ChinaFaculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming, ChinaThe limit equilibrium method (LEM) or finite element method (FEM) for slope problems most frequently focusses on the stability analysis. There are, however, still some problems with the LEM or FEM when considering damage and failure evolution of a rock slope because of the distortion of mesh. In this work, a mesh-free particle approach, named the smoothed particle hydrodynamics (SPH) method, is presented and is improved to analyze the damage and failure process of a rock slope. In order to better describe the cause and mechanism of brittle failure for a rock slope, the plastic factor was suggested and introduced into the SPH algorithm, and the conservation equations of SPH for brittleness characteristics were obtained. Based on the variation of displacement and time, an effective criterion was proposed to define the factor of safety in SPH simulation. The Drucker-Prager Mohr-Coulomb strength criterion was implemented into the SPH algorithm to describe the elastic-plastic behavior. Then, three rock-slope models with different precast cracks were analyzed to illustrate the performance of the proposed method. It is shown that the proposed SPH algorithm can be effectively applied in the prediction of the deformation and failure process of rock slope.https://www.frontiersin.org/articles/10.3389/feart.2022.982658/fullrock slopesmoothed particle hydrodynamicsslope collapseinstability processslope failure |
| spellingShingle | Xiaoqiang Zhang Xiaoqiang Zhang Xiong Song Shunchuan Wu Shunchuan Wu Simulation of collapse failure process of rock slope based on the smoothed particle hydrodynamics method Frontiers in Earth Science rock slope smoothed particle hydrodynamics slope collapse instability process slope failure |
| title | Simulation of collapse failure process of rock slope based on the smoothed particle hydrodynamics method |
| title_full | Simulation of collapse failure process of rock slope based on the smoothed particle hydrodynamics method |
| title_fullStr | Simulation of collapse failure process of rock slope based on the smoothed particle hydrodynamics method |
| title_full_unstemmed | Simulation of collapse failure process of rock slope based on the smoothed particle hydrodynamics method |
| title_short | Simulation of collapse failure process of rock slope based on the smoothed particle hydrodynamics method |
| title_sort | simulation of collapse failure process of rock slope based on the smoothed particle hydrodynamics method |
| topic | rock slope smoothed particle hydrodynamics slope collapse instability process slope failure |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.982658/full |
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