Numerical Simulation Analysis of Slope Instability and Failure of Limestone Mine in Weibei
Weibei area is the largest limestone resource area in Shaanxi Province, which is an important boundary to distinguish the climate difference between the south and the north of China, and also a significant ecological safety protection barrier in the northwest of China. The complex geological environ...
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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/10.1155/2021/5991348 |
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| author | Kuiming Liu Hui Li Shihui Pang Meng Mi Jianping Chen Kui Sun |
| author_facet | Kuiming Liu Hui Li Shihui Pang Meng Mi Jianping Chen Kui Sun |
| author_sort | Kuiming Liu |
| collection | DOAJ |
| description | Weibei area is the largest limestone resource area in Shaanxi Province, which is an important boundary to distinguish the climate difference between the south and the north of China, and also a significant ecological safety protection barrier in the northwest of China. The complex geological environment and harsh environment make the mining area have serious geological disaster hidden danger. Based on the site engineering geological data of typical limestone quarry slope in Weibei, this paper constructs a three-dimensional geological model, uses FLAC3D software to simulate excavation, and analyzes the stress and strain law of the quarry slope. SlopeLE software was used to analyze the safety factor of slope stability and the potential slip surface before and after taking reinforcement measures. The results show the following: (1) Limestone is the main rock component of the mine, followed by mudstone. The joint and fissure are developed, the rock mass is broken, and the hidden danger of engineering geological disaster is high. (2) There is a sliding trend in both sides during excavation, and the maximum vertical displacement is 2.1 cm. (3) If the slope is reinforced according to the design scheme, the slope stability safety factor will be increased from 1.062 to 1.203 in a stable state, which greatly improves the stability of the slope and provides a guarantee for human and financial resources. |
| format | Article |
| id | doaj-art-039a10a0a5ef454cbb5d36d371baffe3 |
| 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-039a10a0a5ef454cbb5d36d371baffe32025-02-03T01:24:47ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/59913485991348Numerical Simulation Analysis of Slope Instability and Failure of Limestone Mine in WeibeiKuiming Liu0Hui Li1Shihui Pang2Meng Mi3Jianping Chen4Kui Sun5State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaState Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology (Beijing), Beijing 100083, ChinaKey Laboratory of Mine Geological Hazards Mechanism and Control, Xian 710054, ChinaKey Laboratory of Mine Geological Hazards Mechanism and Control, Xian 710054, ChinaWeibei area is the largest limestone resource area in Shaanxi Province, which is an important boundary to distinguish the climate difference between the south and the north of China, and also a significant ecological safety protection barrier in the northwest of China. The complex geological environment and harsh environment make the mining area have serious geological disaster hidden danger. Based on the site engineering geological data of typical limestone quarry slope in Weibei, this paper constructs a three-dimensional geological model, uses FLAC3D software to simulate excavation, and analyzes the stress and strain law of the quarry slope. SlopeLE software was used to analyze the safety factor of slope stability and the potential slip surface before and after taking reinforcement measures. The results show the following: (1) Limestone is the main rock component of the mine, followed by mudstone. The joint and fissure are developed, the rock mass is broken, and the hidden danger of engineering geological disaster is high. (2) There is a sliding trend in both sides during excavation, and the maximum vertical displacement is 2.1 cm. (3) If the slope is reinforced according to the design scheme, the slope stability safety factor will be increased from 1.062 to 1.203 in a stable state, which greatly improves the stability of the slope and provides a guarantee for human and financial resources.http://dx.doi.org/10.1155/2021/5991348 |
| spellingShingle | Kuiming Liu Hui Li Shihui Pang Meng Mi Jianping Chen Kui Sun Numerical Simulation Analysis of Slope Instability and Failure of Limestone Mine in Weibei Advances in Civil Engineering |
| title | Numerical Simulation Analysis of Slope Instability and Failure of Limestone Mine in Weibei |
| title_full | Numerical Simulation Analysis of Slope Instability and Failure of Limestone Mine in Weibei |
| title_fullStr | Numerical Simulation Analysis of Slope Instability and Failure of Limestone Mine in Weibei |
| title_full_unstemmed | Numerical Simulation Analysis of Slope Instability and Failure of Limestone Mine in Weibei |
| title_short | Numerical Simulation Analysis of Slope Instability and Failure of Limestone Mine in Weibei |
| title_sort | numerical simulation analysis of slope instability and failure of limestone mine in weibei |
| url | http://dx.doi.org/10.1155/2021/5991348 |
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