IMHE OpenIR  > 山地灾害与地表过程重点实验室
A new approach to assessing vulnerability of mountain highways subject to debris flows in China
Qiang Zou1,2; Peng Cui1,2; Gordon G.D. Zhou1,2; Shusong Li3; Jianxi Tang3; Shuai Li1,2
Corresponding AuthorQiang Zou
2018
Source PublicationPROGRESS IN PHYSICAL GEOGRAPHY
ISSN0309-1333
EISSN1477-0296
Volume42Issue:3Pages:305-329
SubtypeArticle
Contribution Rank1
AbstractMountain highways in China are located in various natural geographical areas with intense tectonic activity, steep topography and a high frequency of extreme precipitation events. These conditions make the highways vulnerable to the occurrence of multiple large debris flows simultaneously during heavy rainfall. To manage this hazard risk, a broader understanding of the hazard effects of debris flows and the vulnerability of highways is needed to reduce the losses resulting from these hazardous events. Accordingly, we analysed the effects of debris flow hazards on mountain highways and established an updated systematic indicator system to describe the vulnerability of highway infrastructure and movable hazard-affected objects. Next, we proposed a new integrated model of highway vulnerability based on the environmental sensibility, structural properties and functional effects of the highway infrastructure and on the exposure probability and quantity of movable hazard-affected objects. By analysing the characteristics of elements affected by debris flows, we developed a systematic and quantitative method of vulnerability assessment for mountain highways. Finally, this implemented method was applied to a case study in the Xiqu section of the Sichuan-Tibet Highway, an area seriously affected by debris flows during each rainy season. The hazard characteristics of disasters were analysed, and the affected highway sections were divided into four vulnerability levels. The analysis of the results indicated that the calculated vulnerability coincides with the actual effects of the disaster, which strongly suggests that the vulnerability assessment generated by the proposed method can serve as a pertinent guide for route selection, road rehabilitation and hazard mitigation of highways affected by debris flows in mountainous regions.
KeywordDebris flow mountain highway vulnerability analysis exposure Qinghai-Tibet Plateau
DOI10.1177/0309133318770985
Indexed BySCI
Language英语
Quartile2区
TOP
WOS IDWOS:000436066200003
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23412
Collection山地灾害与地表过程重点实验室
Affiliation1.Chinese Academy of Sciences (CAS), Chengdu, China;
2.University of Chinese Academy of Sciences, China;
3.Southwest University of Science and Technology, China
Recommended Citation
GB/T 7714
Qiang Zou,Peng Cui,Gordon G.D. Zhou,et al. A new approach to assessing vulnerability of mountain highways subject to debris flows in China[J]. PROGRESS IN PHYSICAL GEOGRAPHY,2018,42(3):305-329.
APA Qiang Zou,Peng Cui,Gordon G.D. Zhou,Shusong Li,Jianxi Tang,&Shuai Li.(2018).A new approach to assessing vulnerability of mountain highways subject to debris flows in China.PROGRESS IN PHYSICAL GEOGRAPHY,42(3),305-329.
MLA Qiang Zou,et al."A new approach to assessing vulnerability of mountain highways subject to debris flows in China".PROGRESS IN PHYSICAL GEOGRAPHY 42.3(2018):305-329.
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