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《Modern Tunnelling Technology》 2006-04
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Simulation analysis of the construction effect of pipe curtain forepoling in Chongwenmen subway station

Zhu Zhengguo~1 Zhu Yongxin~2 Jiang Yanhong~1(1 School of Civil Engineering and Architecture,Beijing Jiaotong University,Beijing 100044,2 The 2nd Rolling Mill of Maanshan Steel and Iron Stock Company Ltd.,Maanshan 243011)  
Chongwenmen Station on line No.5 of Beijing subway traverses beneath the existing transit tunnel of line No.1 of Beijing subway.The distance between the roof of the station and the bottom plate of the transit tunnel is 2.858 m.In order to control the subsidence of the transit tunnel and guarantee the safety of operation strictly,pipe curtain is used as fore-poling for the first time.In order to confirm the rational parameters and the effect of pipe curtain fore-poling,three-dimensional finite element software,3D-Sigma,is used to simulate and analyze the construction effect.In addition,the subsidence of the transit tunnel due to the construction of the station is predicted.
【CateGory Index】: U231.4
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