Analysis of Micro-disturbed Construction of Benoto Pile on Adjacent High-speed Railway Bridge

The limit condition of foundation settlement of high-speed railway line is strict.To ensure the operational safety of high-speed railway and safety of structures near high-speed railway bridge,Beneto pile was conducted to mitigate the effect caused by pile construction.The pile foundation of Banqiao...

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Bibliographic Details
Published inFangzai Jianzai Gongcheng Xuebao no. 5; p. 809
Main Authors Wang, Feiqiu, Zhang, Yiming, Wang, Hao, Xun, Zhixiang, Zhu, Kehong
Format Journal Article
LanguageChinese
Published Nanjing Zhongguo Zaihai Fangyu Xiehui 01.01.2019
Subjects
Airport expansion
Bridge construction
Bridge piers
Bridges
Computer simulation
Construction
Foundation construction
Foundation settlement
High speed rail
Interurban travel
Mathematical models
Pile foundations
Piping
Railroads
Railway bridges
Railway construction
Rivers
Safety
Soil depth
Soils
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Summary:The limit condition of foundation settlement of high-speed railway line is strict.To ensure the operational safety of high-speed railway and safety of structures near high-speed railway bridge,Beneto pile was conducted to mitigate the effect caused by pile construction.The pile foundation of Banqiao River of the first-stage project of Ninghe intercity railway in Nanjing city was taken as the research object.This paper analyses micro-disturbed construction of Benoto pile near high-speed railway bridge by numerical simulation based on PLAXIS 3D and field measurement.The protective jacket tube was rotated and pressed by segment-to-segment approach and partial soil in the tube was removed in time.Results show that the effect caused by this method is slight.With the increase of soil depth,the height of soil in the protective jacket tube should be increased either to avoid piping effect.The high-speed railway bridge pier within the scope of influence of Benoto pile construction.The vertical and horizontal displacem
ISSN:1672-2132