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《Transportation Science & Technology》 2009-02
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Study on the Longitudinal Force and Deformation of River-crossing Shield Tunnel

Zhao Qiangzheng1,Li Shupeng1,Chen Changwu2,Li Hui2,Qin Shengke2(1.China Railway Siyuan Survey and Design Group CO.,LTD,Wuhan 430063,China;2.Communication Planning & Designing Institute of Xiangfan,Xiangfan 441000,China)  
Based on a river-crossing shield tunnel,the longitudinal force and longitudinal deformation of shield tunnel under various condition,including different water level,riverbed erosion etc,is studied by using numerical simulation with 3-Dimension Beam-Spring model.Through analyzing the result,the longitudinal deformation of shield tunnel always occurred in the area where the geological conditions or terrain conditions suddenly changed,and at the position where the shield tunnel and vertical shaft connected.And then the paper studied the effect of different connection between tunnel and vertical shaft and put forward the proposal of adopting flexible connection.Meanwhile,it can provide important reference to the correlative project.
【CateGory Index】: U451
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【Citations】
Chinese Journal Full-text Database 3 Hits
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