Study on the risk assessment of geological disasters in alpine valley area: A case study in Aba County, Sichuan Province
The geological hazard assessment was carried out by the evaluation train thought the study area of multiple disaster species coupling , which has a complete range of disasters such as collapse, landslide and debris flow. The evaluate unit of collapse, landslide and other slopes are grids and the deb...
| 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
2022-06-01
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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.1003-8035.2022.03-15 |
| _version_ | 1797865940985053184 |
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| author | Jingsong YI Feng WANG Yingjian CHENG Yong ZHANG |
| author_facet | Jingsong YI Feng WANG Yingjian CHENG Yong ZHANG |
| author_sort | Jingsong YI |
| collection | DOAJ |
| description | The geological hazard assessment was carried out by the evaluation train thought the study area of multiple disaster species coupling , which has a complete range of disasters such as collapse, landslide and debris flow. The evaluate unit of collapse, landslide and other slopes are grids and the debris flow disasters evaluate units are watershed, Based on the information model and analytic hierarchy process, the risk assessment is carried out respectively, then, the comprehensive geological disaster risk evaluation results of the study area were obtained by taking the method of large value. In the study area, the area of extremely high and high risk area of comprehensive geological disaster is obviously larger than that of the evaluation results of single hazard. The extremely high and high risk area is mainly located in the cataclastic rock area with relatively developed collapse and landslide and extremely prone debris flow basin. In view of the risk assessment of geological disasters in high mountains and valleys, the idea of dividing first and combining later can more reasonably reflect the morphological and spatial differences of different disaster types in the process of risk assessment, and obtain more accurate risk assessment results. |
| first_indexed | 2024-04-09T23:16:13Z |
| format | Article |
| id | doaj.art-44f70f587b74416aa5abc3d6b381f84e |
| institution | Directory Open Access Journal |
| issn | 1003-8035 |
| language | zho |
| last_indexed | 2024-04-09T23:16:13Z |
| publishDate | 2022-06-01 |
| 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-44f70f587b74416aa5abc3d6b381f84e2023-03-22T07:50:32ZzhoEditorial Office of The Chinese Journal of Geological Hazard and ControlZhongguo dizhi zaihai yu fangzhi xuebao1003-80352022-06-0133313414210.16031/j.cnki.issn.1003-8035.2022.03-15202202004Study on the risk assessment of geological disasters in alpine valley area: A case study in Aba County, Sichuan ProvinceJingsong YI0Feng WANG1Yingjian CHENG2Yong ZHANG3Technical Center for Geological Hazard Prevention and Control, CGS/Institute of Exploration Technology, CAGS, Chengdu, Sichuan 611734, ChinaChengdu Hydrogeology and Engineering Geology Center of Sichuan Bureau of Geology and Mineral Resources/Sichuan Huadi Construction Engineering Co. Ltd., Chengdu, Sichuan 610036, ChinaTechnical Center for Geological Hazard Prevention and Control, CGS/Institute of Exploration Technology, CAGS, Chengdu, Sichuan 611734, ChinaTechnical Center for Geological Hazard Prevention and Control, CGS/Institute of Exploration Technology, CAGS, Chengdu, Sichuan 611734, ChinaThe geological hazard assessment was carried out by the evaluation train thought the study area of multiple disaster species coupling , which has a complete range of disasters such as collapse, landslide and debris flow. The evaluate unit of collapse, landslide and other slopes are grids and the debris flow disasters evaluate units are watershed, Based on the information model and analytic hierarchy process, the risk assessment is carried out respectively, then, the comprehensive geological disaster risk evaluation results of the study area were obtained by taking the method of large value. In the study area, the area of extremely high and high risk area of comprehensive geological disaster is obviously larger than that of the evaluation results of single hazard. The extremely high and high risk area is mainly located in the cataclastic rock area with relatively developed collapse and landslide and extremely prone debris flow basin. In view of the risk assessment of geological disasters in high mountains and valleys, the idea of dividing first and combining later can more reasonably reflect the morphological and spatial differences of different disaster types in the process of risk assessment, and obtain more accurate risk assessment results.https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2022.03-15information modelwatershed unitmultiple disaster species couplinganalytic hierarchy process |
| spellingShingle | Jingsong YI Feng WANG Yingjian CHENG Yong ZHANG Study on the risk assessment of geological disasters in alpine valley area: A case study in Aba County, Sichuan Province Zhongguo dizhi zaihai yu fangzhi xuebao information model watershed unit multiple disaster species coupling analytic hierarchy process |
| title | Study on the risk assessment of geological disasters in alpine valley area: A case study in Aba County, Sichuan Province |
| title_full | Study on the risk assessment of geological disasters in alpine valley area: A case study in Aba County, Sichuan Province |
| title_fullStr | Study on the risk assessment of geological disasters in alpine valley area: A case study in Aba County, Sichuan Province |
| title_full_unstemmed | Study on the risk assessment of geological disasters in alpine valley area: A case study in Aba County, Sichuan Province |
| title_short | Study on the risk assessment of geological disasters in alpine valley area: A case study in Aba County, Sichuan Province |
| title_sort | study on the risk assessment of geological disasters in alpine valley area a case study in aba county sichuan province |
| topic | information model watershed unit multiple disaster species coupling analytic hierarchy process |
| url | https://www.zgdzzhyfzxb.com/en/article/doi/10.16031/j.cnki.issn.1003-8035.2022.03-15 |
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