Characteristics of geological hazards and it’s mitigations of the Ms6.8 earthquake in Luding County, Sichuan Province
On September 5th, 2022, the Ms 6.8 earthquake in Luding County, Sichuan Province induced large numbers of geological hazards. In order to deeply understand the evolution, distribution, and characteristics of geological hazards caused by the earthquake, we obtained the distribution of geological haza...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Hydrogeology & Engineering Geology
2022-11-01
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| Series: | Shuiwen dizhi gongcheng dizhi |
| Subjects: | |
| Online Access: | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202209023 |
| _version_ | 1811169379780395008 |
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| author | TIE Yongbo ZHANG Xianzheng LU Jiayan LIANG Jingtao WANG Donghui MA Zhigang LI Zongliang LU Tuo SHI Shengwei LIU Minsheng BA Renji HE Longjiang ZHANG Xinke GAN Wei CHEN Kai GAO Yanchao BAI Yongjian GONG Lingfeng ZENG Xiaowen XU Wei |
| author_facet | TIE Yongbo ZHANG Xianzheng LU Jiayan LIANG Jingtao WANG Donghui MA Zhigang LI Zongliang LU Tuo SHI Shengwei LIU Minsheng BA Renji HE Longjiang ZHANG Xinke GAN Wei CHEN Kai GAO Yanchao BAI Yongjian GONG Lingfeng ZENG Xiaowen XU Wei |
| author_sort | TIE Yongbo |
| collection | DOAJ |
| description | On September 5th, 2022, the Ms 6.8 earthquake in Luding County, Sichuan Province induced large numbers of geological hazards. In order to deeply understand the evolution, distribution, and characteristics of geological hazards caused by the earthquake, we obtained the distribution of geological hazards by the field investigation and remote sensing interpretation. The conditions for hazard control and the countermeasures for hazard prevention and reduction are also analyzed. The results show that as of 22:00 on September 14, 2022, the earthquake has induced 565 geological hazards with threat objects in Luding County and Shimian County (including 331 collapses and 234 landslides), and 81 existing geological hazards whose deformation increased. The geological hazards induced by the earthquake are mainly medium and small mass high-level collapses, which are mainly concentrated in the areas with Seismic intensity zone of Ⅸ near the epicenter. These areas include Moxi Town, Detuo Township, both banks of Dadu River between Detuo Township and Dewei town in Luding County, Caoke Township and Wanggangping Township in Shimian County. According to the experience of the Wenchuan earthquake, the debris flow will be active in the next five years, and its characteristics of high frequency and viscous debris flow should be considered in the design of debris flow prevention and control engineering. Under the rainfall condition, the landslide deposition remaining on the slopes of Dadu River banks in the section of Detuo Township—Dewei Town can easily transform into debris flow. The transformation forms of the two hazards’ types should be fully considered in the design of prevention and control projects. The study can provide a reference for earthquake geological hazard prevention and post hazard reconstruction planning in the earthquake area. |
| first_indexed | 2024-04-10T16:41:23Z |
| format | Article |
| id | doaj.art-b3578c72c8a942f4a07871fb7556b53a |
| institution | Directory Open Access Journal |
| issn | 1000-3665 |
| language | zho |
| last_indexed | 2024-04-10T16:41:23Z |
| publishDate | 2022-11-01 |
| publisher | Editorial Office of Hydrogeology & Engineering Geology |
| record_format | Article |
| series | Shuiwen dizhi gongcheng dizhi |
| spelling | doaj.art-b3578c72c8a942f4a07871fb7556b53a2023-02-08T06:46:25ZzhoEditorial Office of Hydrogeology & Engineering GeologyShuiwen dizhi gongcheng dizhi1000-36652022-11-01496112DOI:10.16030/j.cnki.issn.1000-3665.202209023202209023 Characteristics of geological hazards and it’s mitigations of the Ms6.8 earthquake in Luding County, Sichuan ProvinceTIE Yongbo0ZHANG Xianzheng1 LU Jiayan2LIANG Jingtao3WANG Donghui4MA Zhigang5LI Zongliang6LU Tuo7SHI Shengwei8LIU Minsheng9BA Renji10HE Longjiang11ZHANG Xinke12GAN Wei13CHEN Kai14GAO Yanchao15BAI Yongjian16GONG Lingfeng17ZENG Xiaowen18XU Wei19Chengdu Center of China Geological SurveyChengdu Center of China Geological SurveyChengdu Center of China Geological Survey，School of Engineering and TechnologySichuan Geological SurveyChengdu Center of China Geological SurveyResearch Institute of Spatial Ecological Restoration and Geological Disaster Prevention of Sichuan ProvinceChengdu Center of China Geological SurveyChengdu Center of China Geological Survey，School of Engineering and TechnologyInstitute of Exploration TechnologyInstitute of Exploration TechnologyApplication Geological Research CenterResearch Institute of Spatial Ecological Restoration and Geological Disaster Prevention of Sichuan ProvinceResearch Institute of Spatial Ecological Restoration and Geological Disaster Prevention of Sichuan ProvinceResearch Institute of Spatial Ecological Restoration and Geological Disaster Prevention of Sichuan ProvinceResearch Institute of Spatial Ecological Restoration and Geological Disaster Prevention of Sichuan ProvinceChengdu Center of China Geological SurveyChengdu Center of China Geological SurveyChengdu Center of China Geological SurveyChengdu Center of China Geological SurveyChengdu Center of China Geological SurveyOn September 5th, 2022, the Ms 6.8 earthquake in Luding County, Sichuan Province induced large numbers of geological hazards. In order to deeply understand the evolution, distribution, and characteristics of geological hazards caused by the earthquake, we obtained the distribution of geological hazards by the field investigation and remote sensing interpretation. The conditions for hazard control and the countermeasures for hazard prevention and reduction are also analyzed. The results show that as of 22:00 on September 14, 2022, the earthquake has induced 565 geological hazards with threat objects in Luding County and Shimian County (including 331 collapses and 234 landslides), and 81 existing geological hazards whose deformation increased. The geological hazards induced by the earthquake are mainly medium and small mass high-level collapses, which are mainly concentrated in the areas with Seismic intensity zone of Ⅸ near the epicenter. These areas include Moxi Town, Detuo Township, both banks of Dadu River between Detuo Township and Dewei town in Luding County, Caoke Township and Wanggangping Township in Shimian County. According to the experience of the Wenchuan earthquake, the debris flow will be active in the next five years, and its characteristics of high frequency and viscous debris flow should be considered in the design of debris flow prevention and control engineering. Under the rainfall condition, the landslide deposition remaining on the slopes of Dadu River banks in the section of Detuo Township—Dewei Town can easily transform into debris flow. The transformation forms of the two hazards’ types should be fully considered in the design of prevention and control projects. The study can provide a reference for earthquake geological hazard prevention and post hazard reconstruction planning in the earthquake area.https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202209023ms 6.8 earthquake in luding countyco-seismic geological hazardshazard control conditionsevolution trendhazard mitigation countermeasures |
| spellingShingle | TIE Yongbo ZHANG Xianzheng LU Jiayan LIANG Jingtao WANG Donghui MA Zhigang LI Zongliang LU Tuo SHI Shengwei LIU Minsheng BA Renji HE Longjiang ZHANG Xinke GAN Wei CHEN Kai GAO Yanchao BAI Yongjian GONG Lingfeng ZENG Xiaowen XU Wei Characteristics of geological hazards and it’s mitigations of the Ms6.8 earthquake in Luding County, Sichuan Province Shuiwen dizhi gongcheng dizhi ms 6.8 earthquake in luding county co-seismic geological hazards hazard control conditions evolution trend hazard mitigation countermeasures |
| title | Characteristics of geological hazards and it’s mitigations of the Ms6.8 earthquake in Luding County, Sichuan Province |
| title_full | Characteristics of geological hazards and it’s mitigations of the Ms6.8 earthquake in Luding County, Sichuan Province |
| title_fullStr | Characteristics of geological hazards and it’s mitigations of the Ms6.8 earthquake in Luding County, Sichuan Province |
| title_full_unstemmed | Characteristics of geological hazards and it’s mitigations of the Ms6.8 earthquake in Luding County, Sichuan Province |
| title_short | Characteristics of geological hazards and it’s mitigations of the Ms6.8 earthquake in Luding County, Sichuan Province |
| title_sort | characteristics of geological hazards and it s mitigations of the ms6 8 earthquake in luding county sichuan province |
| topic | ms 6.8 earthquake in luding county co-seismic geological hazards hazard control conditions evolution trend hazard mitigation countermeasures |
| url | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202209023 |
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