气候变化领域集成服务门户(CCPortal): Risk assessment of debris flow along the northern line of the Sichuan-Tibet highway

CCPortal

DOI	10.1080/19475705.2023.2195531
	Risk assessment of debris flow along the northern line of the Sichuan-Tibet highway
	Sun, Yuqing; Ge, Yonggang; Chen, Xingzhang; Zeng, Lu; Liang, Xinyue
发表日期	2023
ISSN	1947-5705
EISSN	1947-5713
卷号	14 期号:1
英文摘要	Debris flow occurs frequently in mountainous areas due to the special geographical and geological environment, causing significant damage to linear infrastructure. However, a systematic assessment of debris flow risk to the national highway is limited by the lack of regional vulnerability data. Based on a detailed inventory of debris flow and highway structure characteristics, this study presents a comprehensive regional risk assessment framework on the northern line of the Sichuan-Tibet Highway in China. The proposed framework consists of three main procedures: (1) debris flow hazard analyses by the weight-of-evidence method, (2) analyses of physical vulnerability using 12 vulnerability indexes, and (3) risk calculation which considers the natural attributes of debris flow and the social characteristics of a linear highway. The predictive performance was evaluated through receiver operating characteristic (ROC) curves, and the validation results showed that areas under the ROC curves were 83.77%. The risk zoning map indicated that the high-risk areas were particularly distributed in Dege County and Daofu County, with a high disaster frequency and a low highway protection standard. The regional risk assessment framework supports decision-making for disaster prevention and highway rehabilitation in mountainous areas.
关键词	Debris flow hazard vulnerability risk assessment northern line of the Sichuan-Tibet highway
英文关键词	PHYSICAL VULNERABILITY; HAZARD; EARTHQUAKE; GEOHAZARDS; MATRICES; RAILWAY; MODELS; REGION; ROADS; FAULT
WOS研究方向	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS记录号	WOS:000969057200001
来源期刊	GEOMATICS NATURAL HAZARDS & RISK
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/282754
作者单位	Chinese Academy of Sciences; Institute of Mountain Hazards & Environment, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Southwest University of Science & Technology - China
推荐引用方式 GB/T 7714	Sun, Yuqing,Ge, Yonggang,Chen, Xingzhang,et al. Risk assessment of debris flow along the northern line of the Sichuan-Tibet highway[J],2023,14(1).
APA	Sun, Yuqing,Ge, Yonggang,Chen, Xingzhang,Zeng, Lu,&Liang, Xinyue.(2023).Risk assessment of debris flow along the northern line of the Sichuan-Tibet highway.GEOMATICS NATURAL HAZARDS & RISK,14(1).
MLA	Sun, Yuqing,et al."Risk assessment of debris flow along the northern line of the Sichuan-Tibet highway".GEOMATICS NATURAL HAZARDS & RISK 14.1(2023).