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Stability of railway embankment of China under extreme storms
Feng, Jiawei1,2; Gao, Liang3; Zhang, Lulu1,2; Feng, Shijin4
2019-08-22
Source PublicationEnvironmental Geotechnics
ISSN2051-803X
Volume6Issue:5Pages:269-283
Abstract

The stability of railway embankments under extreme storms is important for ensuring the normal operation of the railway network. In this study, the effect of precipitation extremes on the stability of the high-speed railway embankment in China is investigated. Historical records of precipitation in the region along the Xuzhou-Shanghai section are used to estimate the value of probable maximum precipitation. Three extreme storm scenarios are generated by upscaling the base storm event which occurred in July 2016 in Nanjing. The results of the numerical analysis show that the water levels rise up significantly, and the lower part of the embankment near the toe is fully saturated. The slip surface moves to shallow depths, and the factor of safety reduces due to surface infiltration. The effects of track superstructures, filling materials in the substructure and the uncertainties of soil hydraulic properties are also discussed. Under extreme storms, a ballastless embankment can be marginally stable even though the embankment surface is covered with a concrete base. The extreme storm magnifies the effects of the uncertainty of soil properties, and the uncertainty bounds of factor of safety are wider under a more severe storm.

KeywordFinite-element Modelling Landslides Seepage Environmental Geotechnics
DOI10.1680/jenge.17.00043
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering
WOS IDWOS:000482227100003
Scopus ID2-s2.0-85071279413
Fulltext Access
FWCI0.15864004
Citation statistics
Document TypeJournal article
CollectionPersonal research not belonging to the institution
Corresponding AuthorZhang, Lulu
Affiliation1.State Key Laboratory of Ocean Engineering, Department of Civil Engineering, Shanghai Jiaotong University, Shanghai, China
2.Collaborative Innovation Center for Advanced Ship and Deep-sea Exploration, Shanghai, China
3.Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong
4.Department of Geotechnical Engineering, Tongji University, Shanghai, China
Recommended Citation
GB/T 7714
Feng, Jiawei,Gao, Liang,Zhang, Lulu,et al. Stability of railway embankment of China under extreme storms[J]. Environmental Geotechnics,2019,6(5):269-283.
APA Feng, Jiawei,Gao, Liang,Zhang, Lulu,&Feng, Shijin.(2019).Stability of railway embankment of China under extreme storms.Environmental Geotechnics,6(5),269-283.
MLA Feng, Jiawei,et al."Stability of railway embankment of China under extreme storms".Environmental Geotechnics 6.5(2019):269-283.
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