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  4. 山地灾害与地表过程重点实验室
Characteristics, mechanisms, and post-disaster lessons of the delayed semi-diagenetic landslide in Hanyuan, Sichuan, China

文献类型：期刊论文

作者Hou, Runing3,5; Chen, Ningsheng4,5; Hu, Guisheng4,5; Han, Zheng2; Liu, Enlong1
刊名LANDSLIDES
出版日期2021-09-15
页码13
关键词Semi-diagenetic landslide Failure characteristics Early warning system Post-disaster lessons
ISSN号1612-510X
DOI10.1007/s10346-021-01751-0
英文摘要Landslides following rainfall occurrence are a widespread phenomenon. The neglect of this phenomenon leads to serious loss of life when disasters occur. At 03:45 (GMT + 8) on August 21, 2020, a semi-diagenetic landslide occurred in Zhonghai Village, Hanyuan County, China, which occurred 42 h after earlier rainfall. Nine people privately returned to their homes after evacuation of the dangerous area. In this disaster, eight people were lost and one injured. This study explores the failure characteristics, inducement, and mechanisms of the landslide via field investigations, resident interviews, multi-temporal images, field drilling, and geotechnical tests. Hydrological numerical calculations were also performed to uncover the seepage and transfer processes of the groundwater in the slope. Finally, problems in the current community early warning system were analyzed and corresponding suggestions put forward. The results show that the maximum sliding depth of the landslide was 27.5 m, the total area was 80,000 m(2), and the sliding volume was about 58,0000 m(3), making it a medium-sized deep landslide. In addition to the vertical seepage of rainfall in the landslide area, the downward movement of rainfall in the back and upper catchment areas along the silt sand strata also affected the stability of the landslide. More needs to be done to make the population aware of this lag phenomenon to achieve scientific disaster reduction. This study not only provides a case study of a lagging semi-diagenetic landslide, but also provides insight into hydrological boundary determination and landslide early warning system construction.
WOS关键词RAINFALL-INDUCED LANDSLIDE ; PREFERENTIAL FLOW ; STABILITY ; SOIL ; SLOPES ; ROCK
资助项目National Natural Science Foundation of China[U20A20110] ; National Natural Science Foundation of China[41861134008] ; Youth Innovation Promotion Association CAS[2020367]
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:000696157800001
出版者SPRINGER HEIDELBERG
资助机构National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
源URL[http://ir.imde.ac.cn/handle/131551/56235]  
专题成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者Chen, Ningsheng
作者单位1.Sichuan Univ, Coll Water Resources & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China
2.Cent South Univ, Sch Civil Engn, Changsha 410075, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Acad Plateau Sci & Sustainabil, Xining 810016, Peoples R China
5.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China
推荐引用方式
GB/T 7714		 Hou, Runing,Chen, Ningsheng,Hu, Guisheng,et al. Characteristics, mechanisms, and post-disaster lessons of the delayed semi-diagenetic landslide in Hanyuan, Sichuan, China[J]. LANDSLIDES,2021:13.
APA Hou, Runing,Chen, Ningsheng,Hu, Guisheng,Han, Zheng,&Liu, Enlong.(2021).Characteristics, mechanisms, and post-disaster lessons of the delayed semi-diagenetic landslide in Hanyuan, Sichuan, China.LANDSLIDES,13.
MLA Hou, Runing,et al."Characteristics, mechanisms, and post-disaster lessons of the delayed semi-diagenetic landslide in Hanyuan, Sichuan, China".LANDSLIDES (2021):13.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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