Hazard zoning and assessment of rockfalls based on AHP-3DEC
Restricted by the surface smoothness and topography, it is impossible for some high-speed railways on mountainous regions to avoid parts of rockfall development sections, posing great safety challenges to construction projects and railway operations. In light of that, this paper laid its focus on th...
| 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
2023-06-01
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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.1003-8035.202203020 |
| _version_ | 1797643643620687872 |
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| author | Run SHI Jiayu LI Minghao CHEN Zheqiang JIA Xiaodong QIU |
| author_facet | Run SHI Jiayu LI Minghao CHEN Zheqiang JIA Xiaodong QIU |
| author_sort | Run SHI |
| collection | DOAJ |
| description | Restricted by the surface smoothness and topography, it is impossible for some high-speed railways on mountainous regions to avoid parts of rockfall development sections, posing great safety challenges to construction projects and railway operations. In light of that, this paper laid its focus on the rockfall situated by the entrance of Xinghuayu Tunnel along the proposed Jinan-Zaozhuang Railway project, and leveraged the power of drone-captured 3D aerial photography to perform digital geological survey and mapping so as to accurately identify the development characteristics, scale, as well as modes of deformation and failure of said rockfall. Next, by cross-referencing the results of 3DEC numerical simulation with those from analytic hierarchy process (AHP), color-coded maps highlighting the scope of influence and danger levels of potential rockfalls induced were obtained. Using said maps, zone-by-zone hazard and risk assessment were then performed, based on which corresponding prevention and control measures were put forward. The findings show that among the 12 dangerous rock belts identified from the drone-captured 3D aerial photography model, only Belt No. 5 would threaten the safety of the tunnel entrance and bridge abutments, for which the combination of anti-rockfall passive protective netting and an open-cut tunnel structure was recommended as a comprehensive solution. By virtue of the solution’s effectiveness, this study can offer reliable references for not only zone-by-zone hazard and risk assessment for rockfalls, but also railway route selection and disaster prevention and mitigation. |
| first_indexed | 2024-03-11T14:17:52Z |
| format | Article |
| id | doaj.art-0d578975c4974f29accfcefd935e6461 |
| institution | Directory Open Access Journal |
| issn | 1003-8035 |
| language | zho |
| last_indexed | 2024-03-11T14:17:52Z |
| publishDate | 2023-06-01 |
| 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-0d578975c4974f29accfcefd935e64612023-11-01T02:06:18ZzhoEditorial Office of The Chinese Journal of Geological Hazard and ControlZhongguo dizhi zaihai yu fangzhi xuebao1003-80352023-06-0134312713510.16031/j.cnki.issn.1003-8035.202203020202203020Hazard zoning and assessment of rockfalls based on AHP-3DECRun SHI0Jiayu LI1Minghao CHEN2Zheqiang JIA3Xiaodong QIU4China Communication North Road & Bridge Co.Ltd., Beijing 100024, ChinaChina Railway Eryuan Engineering Group Co.Ltd., Chengdu, Sichuan 610031, ChinaChina Railway Eryuan Engineering Group Co.Ltd., Chengdu, Sichuan 610031, ChinaChina Railway Eryuan Engineering Group Co.Ltd., Chengdu, Sichuan 610031, ChinaChina Railway Eryuan Engineering Group Co.Ltd., Chengdu, Sichuan 610031, ChinaRestricted by the surface smoothness and topography, it is impossible for some high-speed railways on mountainous regions to avoid parts of rockfall development sections, posing great safety challenges to construction projects and railway operations. In light of that, this paper laid its focus on the rockfall situated by the entrance of Xinghuayu Tunnel along the proposed Jinan-Zaozhuang Railway project, and leveraged the power of drone-captured 3D aerial photography to perform digital geological survey and mapping so as to accurately identify the development characteristics, scale, as well as modes of deformation and failure of said rockfall. Next, by cross-referencing the results of 3DEC numerical simulation with those from analytic hierarchy process (AHP), color-coded maps highlighting the scope of influence and danger levels of potential rockfalls induced were obtained. Using said maps, zone-by-zone hazard and risk assessment were then performed, based on which corresponding prevention and control measures were put forward. The findings show that among the 12 dangerous rock belts identified from the drone-captured 3D aerial photography model, only Belt No. 5 would threaten the safety of the tunnel entrance and bridge abutments, for which the combination of anti-rockfall passive protective netting and an open-cut tunnel structure was recommended as a comprehensive solution. By virtue of the solution’s effectiveness, this study can offer reliable references for not only zone-by-zone hazard and risk assessment for rockfalls, but also railway route selection and disaster prevention and mitigation.https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.202203020rockfallnumerical simulationhazard zoninganalytic hierarchy processdigital geological surveying |
| spellingShingle | Run SHI Jiayu LI Minghao CHEN Zheqiang JIA Xiaodong QIU Hazard zoning and assessment of rockfalls based on AHP-3DEC Zhongguo dizhi zaihai yu fangzhi xuebao rockfall numerical simulation hazard zoning analytic hierarchy process digital geological surveying |
| title | Hazard zoning and assessment of rockfalls based on AHP-3DEC |
| title_full | Hazard zoning and assessment of rockfalls based on AHP-3DEC |
| title_fullStr | Hazard zoning and assessment of rockfalls based on AHP-3DEC |
| title_full_unstemmed | Hazard zoning and assessment of rockfalls based on AHP-3DEC |
| title_short | Hazard zoning and assessment of rockfalls based on AHP-3DEC |
| title_sort | hazard zoning and assessment of rockfalls based on ahp 3dec |
| topic | rockfall numerical simulation hazard zoning analytic hierarchy process digital geological surveying |
| url | https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.202203020 |
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