Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass Blocks
Cataclastic rock masses with multiple failure modes and mechanisms are critical geological problems in the construction of rock slopes. Cataclastic rock masses are widely distributed in slopes of a hydropower project located on Lancang River, which is located in Tibet, China. In this study, the pote...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/5314937 |
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| author | Liguo Zhang Dong Wang Guanghe Li Jiaxing Dong Jianpeng Zhang |
| author_facet | Liguo Zhang Dong Wang Guanghe Li Jiaxing Dong Jianpeng Zhang |
| author_sort | Liguo Zhang |
| collection | DOAJ |
| description | Cataclastic rock masses with multiple failure modes and mechanisms are critical geological problems in the construction of rock slopes. Cataclastic rock masses are widely distributed in slopes of a hydropower project located on Lancang River, which is located in Tibet, China. In this study, the potentially unstable block of the slope is divided into key block and secondary key block based on the key block theory, and the system reliability evaluation theory is introduced. The method for quantitatively analyzing the rock mass stability of cataclastic slopes with sliding failure is established. Then, the spatial distribution of cataclastic rock masses and discontinuities in several rock slopes of a hydropower project are determined using traditional geological surveying and 3D laser scanning. At last, combining the BATE 2.0 software and the stereographic projection of the vector, the proposed method is applied to the study area. The results show that the main failure mode of the studied slope is wedge failure, and the system reliability is 1.69. With the increase in the instability probability of the key block, the increase in the instability probability of the system block is obvious, which reflects the controlling effect of the key block on the stability of the system block. The calculated system instability probability is slightly larger than the key block instability probability. |
| format | Article |
| id | doaj-art-66135d81189c4fd6abe14dfd8023476f |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-66135d81189c4fd6abe14dfd8023476f2025-02-03T06:43:27ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/53149375314937Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass BlocksLiguo Zhang0Dong Wang1Guanghe Li2Jiaxing Dong3Jianpeng Zhang4College of Mines, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaCollege of Mines, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaCollege of Mines, Liaoning Technical University, Fuxin, Liaoning 123000, ChinaFaculty of Electric Power Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650500, ChinaPlanning and Development Department, Ben Gang Group Corporation, Benxi, Liaoning 117000, ChinaCataclastic rock masses with multiple failure modes and mechanisms are critical geological problems in the construction of rock slopes. Cataclastic rock masses are widely distributed in slopes of a hydropower project located on Lancang River, which is located in Tibet, China. In this study, the potentially unstable block of the slope is divided into key block and secondary key block based on the key block theory, and the system reliability evaluation theory is introduced. The method for quantitatively analyzing the rock mass stability of cataclastic slopes with sliding failure is established. Then, the spatial distribution of cataclastic rock masses and discontinuities in several rock slopes of a hydropower project are determined using traditional geological surveying and 3D laser scanning. At last, combining the BATE 2.0 software and the stereographic projection of the vector, the proposed method is applied to the study area. The results show that the main failure mode of the studied slope is wedge failure, and the system reliability is 1.69. With the increase in the instability probability of the key block, the increase in the instability probability of the system block is obvious, which reflects the controlling effect of the key block on the stability of the system block. The calculated system instability probability is slightly larger than the key block instability probability.http://dx.doi.org/10.1155/2021/5314937 |
| spellingShingle | Liguo Zhang Dong Wang Guanghe Li Jiaxing Dong Jianpeng Zhang Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass Blocks Advances in Civil Engineering |
| title | Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass Blocks |
| title_full | Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass Blocks |
| title_fullStr | Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass Blocks |
| title_full_unstemmed | Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass Blocks |
| title_short | Stability Analysis and Reliability Evaluation in Cataclastic Loose Rock Mass Blocks |
| title_sort | stability analysis and reliability evaluation in cataclastic loose rock mass blocks |
| url | http://dx.doi.org/10.1155/2021/5314937 |
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