干旱区生态环境知识资源中心(Arid): New insights into the occurrence of the catastrophic Zhaiban slope debris flow that occurred in a dry valley in the Hengduan Mountains in southwest China

Arid

DOI	10.1007/s10346-021-01824-0
	New insights into the occurrence of the catastrophic Zhaiban slope debris flow that occurred in a dry valley in the Hengduan Mountains in southwest China
	Tian, Shufeng; Chen, Ningsheng; Rahman, Mahfuzur; Hu, Guisheng; Peng, Taixin; Zhang, Yong; Liu, Mei
通讯作者	Chen, NS ; Hu, GS (corresponding author)，Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China.
来源期刊	LANDSLIDES
ISSN	1612-510X
EISSN	1612-5118
出版年	2022
卷号	19 期号:3 页码:647-657
英文摘要	In 2019, the catastrophic Zhaiban slope debris flow (ZSDF) crushed an open road tunnel in Ganluo County, Sichuan Province, China, causing seven deaths and interrupting traffic flow for 16 days. We analyzed the characteristics of the ZSDF disaster by undertaking a comprehensive on-site investigation, evaluating the internal and external dynamic characteristics, and conducting a numerical simulation. The formation mechanism of typical slope debris flows in the arid valley area of the Hengduan Mountain was revealed, and the material foundations for generating the ZSDF were identified as internal dynamic effects on the slope (including thrust faults and folds), historical earthquake occurrences, and external dynamic effects from an extreme dry and wet cycle (with a low frequency of once in 55 years). Soil failure occurred in a hollow catchment region at the top of the gully (covering an area of 74,084 m(2)) under a heavy rainfall of 33.4 mm/h, and large boulders (average radius of 2.43 m) were pulled along the gully and down the steep slope gradient, thereby providing the large amount of kinetic energy required for the ZSDF. Large boulders and soil masses remain in gullies on slopes within the study area, providing the high possibility of future slope debris flows under heavy rainfall. The results also suggest the use of large-gradient flumes on top of open tunnels in the arid valley area of the Hengduan Mountains to provide optimum protection against slope debris flow.
英文关键词	Slope debris flow Open tunnel Hollow regions Dry-wet cycle Hengduan Mountains
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000742973200002
WOS关键词	WENCHUAN EARTHQUAKE ; LANDSLIDES ; RAINFALL
WOS类目	Engineering, Geological ; Geosciences, Multidisciplinary
WOS研究方向	Engineering ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376563
作者单位	[Tian, Shufeng; Chen, Ningsheng; Hu, Guisheng; Peng, Taixin] Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China; [Tian, Shufeng; Peng, Taixin] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Chen, Ningsheng; Hu, Guisheng] Acad Plateau Sci & Sustainabil, Xining 810016, Peoples R China; [Rahman, Mahfuzur] Int Univ Business Agr & Technol IUBAT, Dept Civil Engn, Dhaka 1230, Bangladesh; [Zhang, Yong] Anyang Inst Technol, Sch Civil & Architectural Engn, Anyang 455000, Peoples R China; [Liu, Mei] Xihua Univ, Sch Emergency Sci, Chengdu 610039, Peoples R China
推荐引用方式 GB/T 7714	Tian, Shufeng,Chen, Ningsheng,Rahman, Mahfuzur,et al. New insights into the occurrence of the catastrophic Zhaiban slope debris flow that occurred in a dry valley in the Hengduan Mountains in southwest China[J],2022,19(3):647-657.
APA	Tian, Shufeng.,Chen, Ningsheng.,Rahman, Mahfuzur.,Hu, Guisheng.,Peng, Taixin.,...&Liu, Mei.(2022).New insights into the occurrence of the catastrophic Zhaiban slope debris flow that occurred in a dry valley in the Hengduan Mountains in southwest China.LANDSLIDES,19(3),647-657.
MLA	Tian, Shufeng,et al."New insights into the occurrence of the catastrophic Zhaiban slope debris flow that occurred in a dry valley in the Hengduan Mountains in southwest China".LANDSLIDES 19.3(2022):647-657.