Analyses on failure modes and effectiveness of the prevention measures of Jianchuandong dangerous rock mass in the Three Gorges Reservoir area
In this paper, the Jianchuandong dangerous rock mass in the Three Gorges Reservoir area is taken as an example to study the failure mode and protection of submerged thick-layer dangerous rock mass. Based on field investigation and the monitoring data, it was found that the degradation of the base ro...
| 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
2021-10-01
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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.1003-8035.2021.05-13 |
| _version_ | 1827982148908351488 |
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| author | Wenming JIANG Luqi WANG Peng ZHAO Bolin HUANG Zhihua ZHANG Mingjun HU |
| author_facet | Wenming JIANG Luqi WANG Peng ZHAO Bolin HUANG Zhihua ZHANG Mingjun HU |
| author_sort | Wenming JIANG |
| collection | DOAJ |
| description | In this paper, the Jianchuandong dangerous rock mass in the Three Gorges Reservoir area is taken as an example to study the failure mode and protection of submerged thick-layer dangerous rock mass. Based on field investigation and the monitoring data, it was found that the degradation of the base rock mass under the dry-wet cycles is the main factor to accelerate the deformation of the dangerous rock mass. Its failure mode is determined as slip collapse. According to the deformation and failure characteristics of the dangerous rock mass, the corresponding treatment measure is divided into two parts, inculding the reinforcement of the weak base rock mass, and anchor cable in the upper part of the dangerous rock mass. By comparing the displacement field and the stress field before and after protection, it is found that the prestressed reinforcement of the upper dangerous rock mass can effectively control the deformation of the rock mass, and the reinforcement of base rock mass can effectively control the maximum shear stress of the dangerous rock mass. The comprehensive protection effect is significant to ensure the stability of dangerous rock mass. The protection method can provide important reference for the treatment of submerged dangerous rock mass in the reservoir area. |
| first_indexed | 2024-04-09T22:19:54Z |
| format | Article |
| id | doaj.art-c152f5e3773c4a4bacc482ec6452f96c |
| institution | Directory Open Access Journal |
| issn | 1003-8035 |
| language | zho |
| last_indexed | 2024-04-09T22:19:54Z |
| publishDate | 2021-10-01 |
| 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-c152f5e3773c4a4bacc482ec6452f96c2023-03-22T16:10:53ZzhoEditorial Office of The Chinese Journal of Geological Hazard and ControlZhongguo dizhi zaihai yu fangzhi xuebao1003-80352021-10-0132510511210.16031/j.cnki.issn.1003-8035.2021.05-13202011037Analyses on failure modes and effectiveness of the prevention measures of Jianchuandong dangerous rock mass in the Three Gorges Reservoir areaWenming JIANG0Luqi WANG1Peng ZHAO2Bolin HUANG3Zhihua ZHANG4Mingjun HU5Hebei Key Laboratory of Earthquake Disaster Prevention and Risk Assessment, Sanhe ,Hebei 065201,ChinaHebei Key Laboratory of Earthquake Disaster Prevention and Risk Assessment, Sanhe ,Hebei 065201,ChinaChongqing 208 Institute of Geological Environment Co. Ltd., Chongqing 400700, ChinaHubei Key Laboratory of Disaster Prevention and Mitigation, China Three Gorges University, Yichang, Hubei 443002, ChinaChongqing 208 Institute of Geological Environment Co. Ltd., Chongqing 400700, ChinaChongqing 208 Institute of Geological Environment Co. Ltd., Chongqing 400700, ChinaIn this paper, the Jianchuandong dangerous rock mass in the Three Gorges Reservoir area is taken as an example to study the failure mode and protection of submerged thick-layer dangerous rock mass. Based on field investigation and the monitoring data, it was found that the degradation of the base rock mass under the dry-wet cycles is the main factor to accelerate the deformation of the dangerous rock mass. Its failure mode is determined as slip collapse. According to the deformation and failure characteristics of the dangerous rock mass, the corresponding treatment measure is divided into two parts, inculding the reinforcement of the weak base rock mass, and anchor cable in the upper part of the dangerous rock mass. By comparing the displacement field and the stress field before and after protection, it is found that the prestressed reinforcement of the upper dangerous rock mass can effectively control the deformation of the rock mass, and the reinforcement of base rock mass can effectively control the maximum shear stress of the dangerous rock mass. The comprehensive protection effect is significant to ensure the stability of dangerous rock mass. The protection method can provide important reference for the treatment of submerged dangerous rock mass in the reservoir area.https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.05-13dangerous rock massfailure modethe three gorges reservoir areacontrol measuresfinite element calculation |
| spellingShingle | Wenming JIANG Luqi WANG Peng ZHAO Bolin HUANG Zhihua ZHANG Mingjun HU Analyses on failure modes and effectiveness of the prevention measures of Jianchuandong dangerous rock mass in the Three Gorges Reservoir area Zhongguo dizhi zaihai yu fangzhi xuebao dangerous rock mass failure mode the three gorges reservoir area control measures finite element calculation |
| title | Analyses on failure modes and effectiveness of the prevention measures of Jianchuandong dangerous rock mass in the Three Gorges Reservoir area |
| title_full | Analyses on failure modes and effectiveness of the prevention measures of Jianchuandong dangerous rock mass in the Three Gorges Reservoir area |
| title_fullStr | Analyses on failure modes and effectiveness of the prevention measures of Jianchuandong dangerous rock mass in the Three Gorges Reservoir area |
| title_full_unstemmed | Analyses on failure modes and effectiveness of the prevention measures of Jianchuandong dangerous rock mass in the Three Gorges Reservoir area |
| title_short | Analyses on failure modes and effectiveness of the prevention measures of Jianchuandong dangerous rock mass in the Three Gorges Reservoir area |
| title_sort | analyses on failure modes and effectiveness of the prevention measures of jianchuandong dangerous rock mass in the three gorges reservoir area |
| topic | dangerous rock mass failure mode the three gorges reservoir area control measures finite element calculation |
| url | https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2021.05-13 |
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