Basic characteristics and stability evaluation of dangerous rockmasses in Yanqi Town, Beijing
In this paper, taking Yanqi Town, Huairou District, Beijing as the research object, through the field investigation and rock block test and detection, the basic characteristics of the collapse are found out. By using the method of stereographic projection analysis, the overall stability of the colla...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Office of The Chinese Journal of Geological Hazard and Control
2021-02-01
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| Series: | Zhongguo dizhi zaihai yu fangzhi xuebao |
| Subjects: | |
| Online Access: | https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.01.04 |
| _version_ | 1797862424645206016 |
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| author | Xianghua XIA Decheng LIU Yuqian LI Xueyuan GAO |
| author_facet | Xianghua XIA Decheng LIU Yuqian LI Xueyuan GAO |
| author_sort | Xianghua XIA |
| collection | DOAJ |
| description | In this paper, taking Yanqi Town, Huairou District, Beijing as the research object, through the field investigation and rock block test and detection, the basic characteristics of the collapse are found out. By using the method of stereographic projection analysis, the overall stability of the collapse dangerous rock zone is qualitatively analyzed; by using the method of limit equilibrium, the single dangerous rock collapse is quantitatively evaluated according to different working conditions. On this basis, the targeted governance measures are put forward. The results show that: (1) the dangerous rock zone on the slope where the hidden danger point of collapse disaster is located is basically in an unstable state; (2) under the condition of self weight + fracture water pressure (natural state), the stability coefficient of single dangerous rock W1, W2 and W3 is 1.02～1.17, which are all in an unstable state; under the condition of self weight+ fracture water pressure (rainstorm), the stability coefficient is 0.82～0.98, both in an unstable state; under the condition of self weight + fissure water pressure (natural state) + seismic force, the stability coefficient is 0.72～0.83, both in an unstable state. (3) The comprehensive engineering control measures of “active + passive protection network” are feasible in Beijing area. The research results can be used as a reference for engineering control of collapse disaster in Beijing. |
| first_indexed | 2024-04-09T22:20:16Z |
| format | Article |
| id | doaj.art-1c421d62bbac40a3914ecc7be11a8ad3 |
| institution | Directory Open Access Journal |
| issn | 1003-8035 |
| language | zho |
| last_indexed | 2024-04-09T22:20:16Z |
| publishDate | 2021-02-01 |
| publisher | Editorial Office of The Chinese Journal of Geological Hazard and Control |
| record_format | Article |
| series | Zhongguo dizhi zaihai yu fangzhi xuebao |
| spelling | doaj.art-1c421d62bbac40a3914ecc7be11a8ad32023-03-22T16:09:16ZzhoEditorial Office of The Chinese Journal of Geological Hazard and ControlZhongguo dizhi zaihai yu fangzhi xuebao1003-80352021-02-01321283410.16031/j.cnki.issn.1003-8035.2021.01.04202003014Basic characteristics and stability evaluation of dangerous rockmasses in Yanqi Town, BeijingXianghua XIA0Decheng LIU1Yuqian LI2Xueyuan GAO3Beijing Geology and Mineral Resources Prospecting and Developing Company, Beijing 100050, ChinaBeijing Geology and Mineral Resources Prospecting and Developing Company, Beijing 100050, ChinaBeijing Geology and Mineral Resources Prospecting and Developing Company, Beijing 100050, ChinaBeijing Geology and Mineral Resources Prospecting and Developing Company, Beijing 100050, ChinaIn this paper, taking Yanqi Town, Huairou District, Beijing as the research object, through the field investigation and rock block test and detection, the basic characteristics of the collapse are found out. By using the method of stereographic projection analysis, the overall stability of the collapse dangerous rock zone is qualitatively analyzed; by using the method of limit equilibrium, the single dangerous rock collapse is quantitatively evaluated according to different working conditions. On this basis, the targeted governance measures are put forward. The results show that: (1) the dangerous rock zone on the slope where the hidden danger point of collapse disaster is located is basically in an unstable state; (2) under the condition of self weight + fracture water pressure (natural state), the stability coefficient of single dangerous rock W1, W2 and W3 is 1.02～1.17, which are all in an unstable state; under the condition of self weight+ fracture water pressure (rainstorm), the stability coefficient is 0.82～0.98, both in an unstable state; under the condition of self weight + fissure water pressure (natural state) + seismic force, the stability coefficient is 0.72～0.83, both in an unstable state. (3) The comprehensive engineering control measures of “active + passive protection network” are feasible in Beijing area. The research results can be used as a reference for engineering control of collapse disaster in Beijing.https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.01.04rock falldangerous rockstability evaluationprevention and control measures |
| spellingShingle | Xianghua XIA Decheng LIU Yuqian LI Xueyuan GAO Basic characteristics and stability evaluation of dangerous rockmasses in Yanqi Town, Beijing Zhongguo dizhi zaihai yu fangzhi xuebao rock fall dangerous rock stability evaluation prevention and control measures |
| title | Basic characteristics and stability evaluation of dangerous rockmasses in Yanqi Town, Beijing |
| title_full | Basic characteristics and stability evaluation of dangerous rockmasses in Yanqi Town, Beijing |
| title_fullStr | Basic characteristics and stability evaluation of dangerous rockmasses in Yanqi Town, Beijing |
| title_full_unstemmed | Basic characteristics and stability evaluation of dangerous rockmasses in Yanqi Town, Beijing |
| title_short | Basic characteristics and stability evaluation of dangerous rockmasses in Yanqi Town, Beijing |
| title_sort | basic characteristics and stability evaluation of dangerous rockmasses in yanqi town beijing |
| topic | rock fall dangerous rock stability evaluation prevention and control measures |
| url | https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.01.04 |
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