A small landslide induced a large disaster prior to the heavy rainy season in Jinkouhe, Sichuan, China: characteristics, mechanism, and lessons
文献类型:期刊论文
作者 | Hou, Runing4,5; Li, Zhi5; Ye, Weihao4,5; Peng, Taixin4,5; Tian, Shufeng5; Chen, Ningsheng2,3,5; Huang, Na5; Somos-Valenzuela, Marcelo1 |
刊名 | LANDSLIDES |
出版日期 | 2024-02-09 |
页码 | 13 |
ISSN号 | 1612-510X |
关键词 | Landslide Hollow colluvial deposits Hysteresis Dadu River Bedrock seepage |
DOI | 10.1007/s10346-024-02213-z |
英文摘要 | Small-scale landslides that occur at unexpected locations and seasons can cause severe losses of life and property. Unusually, the Shidang landslide occurred prior to the rainy season in Jinkouhe County, Sichuan Province, China, resulting in 19 deaths and missing persons. In this paper, landslide characteristics and causes are revealed through a field investigation, laboratory experiments, and numerical calculations. The results show that the Shidang landslide was a small-scale landslide with a total volume of approximately 19500 m3, originating from hollow colluvial deposits. The geomorphological hollow above the landslide provided topographic conditions for the collection of subsurface runoff. Groundwater flow was transported downward along dolomite and accumulated in the area above shale, with a low conductivity. Groundwater table rise combined with the decrease in the soil strength led to landslide occurrence. Improper siting of residential areas and insufficient vigilance against post-rainfall landslides caused this tragedy. Considering the post-disaster lessons, it is strongly recommended that in the future, more attention should be given to the investigation of landslides triggered by groundwater, especially in determining landslide hydrological system boundaries. In mountainous areas where the developable space is limited, areas with hollow landforms are potentially at risk of geohazards. This paper could provide a reference for the prevention and management of similar landslides and new insights for updating landslide investigation systems and residential housing plans. |
WOS关键词 | RUNOFF ; CURVE ; MODEL ; RIVER |
资助项目 | National Natural Science Foundation of China |
WOS研究方向 | Engineering ; Geology |
语种 | 英语 |
出版者 | SPRINGER HEIDELBERG |
WOS记录号 | WOS:001157482500001 |
资助机构 | National Natural Science Foundation of China |
源URL | [http://ir.imde.ac.cn/handle/131551/57873] |
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 | Tian, Shufeng; Chen, Ningsheng |
作者单位 | 1.Univ La Frontera, Fac Agr & Environm Sci, Dept Forest Sci, Temuco 4780000, Chile 2.Yangtze Univ, Sch Geosci, Wuhan 430100, Peoples R China 3.Acad Plateau Sci & Sustainabil, Xining 810016, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China |
推荐引用方式 GB/T 7714 | Hou, Runing,Li, Zhi,Ye, Weihao,et al. A small landslide induced a large disaster prior to the heavy rainy season in Jinkouhe, Sichuan, China: characteristics, mechanism, and lessons[J]. LANDSLIDES,2024:13. |
APA | Hou, Runing.,Li, Zhi.,Ye, Weihao.,Peng, Taixin.,Tian, Shufeng.,...&Somos-Valenzuela, Marcelo.(2024).A small landslide induced a large disaster prior to the heavy rainy season in Jinkouhe, Sichuan, China: characteristics, mechanism, and lessons.LANDSLIDES,13. |
MLA | Hou, Runing,et al."A small landslide induced a large disaster prior to the heavy rainy season in Jinkouhe, Sichuan, China: characteristics, mechanism, and lessons".LANDSLIDES (2024):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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