气候变化领域集成服务门户(CCPortal): Risk assessment of engineering diseases of embankment-bridge transition section for railway in permafrost regions

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DOI	10.1002/ppp.2135
	Risk assessment of engineering diseases of embankment-bridge transition section for railway in permafrost regions
	Zhang, Saize; Niu, Fujun; Wang, Shi; Sun, Yongning; Wang, Jinchang; Dong, Tianchun
通讯作者	Niu, FJ (通讯作者)，South China Univ Technol, Sch Civil Engn & Transportat, South China Inst Geotech Engn, Guangzhou, Peoples R China.
发表日期	2022
ISSN	1045-6740
EISSN	1099-1530
起始页码	46
结束页码	62
卷号	33 期号:1
英文摘要	The embankment-bridge transition section (EBTS) is one of the zones where railway diseases occur frequently in permafrost regions. Disease risk assessment of EBTSs can provide guidance for maintenance. In this study, considering the engineering geological conditions, climate characteristics, and embankment structure types along the Qinghai-Tibet Railway (QTR) as well as based on the disease inventory of the QTR from 2010 to 2019, the logistic regression (LR), support vector machine (SVM), and combination-weight-based gay relation analysis (GRA) were used for disease risk assessment of the EBTSs along the QTR in permafrost regions. The results indicate that the LR and SVM models have a better capability for EBTS disease prediction than the GRA model, and the SVM model can select more disease samples in relatively larger regions than the LR model. Based on the SVM and LR models, the risk level of EBTSs is divided into four classes: low- (29.9%), moderate- (39.6%), high- (22.1%), and very high (8.4%) risk. Finally, we selected 272 EBTSs in high- and very-high-risk classes for key observation during the maintenance of the QTR in permafrost regions. This study provides a reference for the risk assessment of railways built in permafrost regions using data-driven methods.
关键词	SUPPORT VECTOR MACHINE QINGHAI-TIBET HIGHWAY THERMAL REGIME FROZEN SOIL SVM MODEL LANDSLIDE SIMULATION DECISION BEHAVIOR PLATEAU
英文关键词	disease; embankment-bridge transition section; permafrost regions; risk assessment
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geology
WOS记录号	WOS:000730520600001
来源期刊	PERMAFROST AND PERIGLACIAL PROCESSES
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254707
作者单位	[Zhang, Saize] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou, Peoples R China; [Zhang, Saize] Univ Chinese Acad Sci, Beijing, Peoples R China; [Niu, Fujun] South China Univ Technol, Sch Civil Engn & Transportat, South China Inst Geotech Engn, Guangzhou, Peoples R China; [Wang, Shi; Sun, Yongning; Wang, Jinchang; Dong, Tianchun] China Railway Qinghai, Xining, Tibet, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Saize,Niu, Fujun,Wang, Shi,et al. Risk assessment of engineering diseases of embankment-bridge transition section for railway in permafrost regions[J]. 中国科学院西北生态环境资源研究院,2022,33(1).
APA	Zhang, Saize,Niu, Fujun,Wang, Shi,Sun, Yongning,Wang, Jinchang,&Dong, Tianchun.(2022).Risk assessment of engineering diseases of embankment-bridge transition section for railway in permafrost regions.PERMAFROST AND PERIGLACIAL PROCESSES,33(1).
MLA	Zhang, Saize,et al."Risk assessment of engineering diseases of embankment-bridge transition section for railway in permafrost regions".PERMAFROST AND PERIGLACIAL PROCESSES 33.1(2022).