Laboratory model test of contact erosion in railway substructure

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成果类型：

期刊论文

作者：

Dai, Shaoheng;He, Xuzhen;Gao, Feng;Zhong, Wenhua;Zheng, Yewei;...

通讯作者：

Gao, F;Zhang, S

作者机构：

[He, Xuzhen; Dai, Shaoheng] Univ Technol Sydney, Sch Civil & Environm Engn, Ultimo, NSW 2007, Australia.

[Gao, F; Gao, Feng] Changsha Univ Sci & Technol, Sch Traff & Transportat Engn, Changsha 410114, Hunan, Peoples R China.

[Zhong, Wenhua] Qinghai Commun Holding Grp Co Ltd, Xining 810000, Qinghai, Peoples R China.

[Zheng, Yewei] Wuhan Univ, Sch Civil Engn, Wuhan 430072, Hubei, Peoples R China.

[Zhang, Sheng] Cent South Univ, Sch Civil Engn, Changsha 410075, Peoples R China.

通讯机构：

[Gao, F ; Zhang, S ] C

Changsha Univ Sci & Technol, Sch Traff & Transportat Engn, Changsha 410114, Hunan, Peoples R China.

Cent South Univ, Sch Civil Engn, Changsha 410075, Peoples R China.

语种：

英文

关键词：

Contact erosion;Railway substructure;Cyclic loading;Hydraulic gradient;Particle migration

期刊：

Transportation Geotechnics

ISSN：

2214-3912

年：

2025

卷：

页码：

101499

DOI：

10.1016/j.trgeo.2025.101499

基金类别：

Australian Research Council [DE220100763]; Young Scientists Fund of the National Natural Science Foundation of China [52308438]; science and technology innovation Program of Hunan Province [2023RC1017]; Natural Science Foundation of Hunan Province [2023JJ40035]; Open Research Fund of Science and Technology Innovation Platform of Key Laboratory of Highway Engineering of Ministry of Education [kfj2405]; Changsha Natural Science Foundation [kq2208234]; National Engineering Research Center of Highway Maintenance Technology Open Key Fund [kfj220801]

机构署名：

本校为通讯机构

院系归属：

交通运输工程学院

摘要：

The underestimated risk of contact erosion failure in railway substructures poses a significant threat to railway safety, particularly at the interface between the ballast/subballast and subgrade. The larger constriction size at this interface exacerbates the potential for long-term erosion, necessitating attention to safeguard railway integrity. This study introduces a novel laboratory erosion testing apparatus to evaluate contact erosion at the subballast-subgrade interface under cyclic loading. Subgrade soils with varying fines contents are tested, and the effect of pressure head on erosion...

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Laboratory model test of contact erosion in railway substructure

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