| 崇文门地铁车站管幕预支护施工效应模拟分析 |
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| 引用本文： | 朱正国,朱永信,姜艳红.崇文门地铁车站管幕预支护施工效应模拟分析[J].现代隧道技术,2006,43(4):12-15. |
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| 作者姓名： | 朱正国 朱永信 姜艳红 |
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| 作者单位： | 1. 北京交通大学土木建筑工程学院,北京,100044
2. 马鞍山钢铁有限股份公司第二轧钢厂,马鞍山,243011 |
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| 摘 要： | 北京地铁五号线崇文门站下穿既有地铁一号线区间隧道,车站顶板与区间隧道底板间距2.858 m,施工中为了严格控制既有环线区间隧道的沉降,确保环线地铁运营安全,首次采用了管幕预支护技术。文章采用3D-S igm a三维有限元软件对施工效应进行模拟分析,预测车站施工引起的既有隧道的沉降量,以确定合理的管幕预支护参数及其作用效果。
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| 关 键 词： | 地铁车站 立体交叉 管幕预支护 施工效应 三维有限元 |
| 文章编号： | 1009-6582(2006)04-0012-04 |
Simulation analysis of the construction effect of pipe curtain fore- poling in Chongwenmen subway station |
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| Zhu Zhengguo,Zhu Yongxin,Jiang Yanhong.Simulation analysis of the construction effect of pipe curtain fore- poling in Chongwenmen subway station[J].Modern Tunnelling Technology,2006,43(4):12-15. |
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| Authors: | Zhu Zhengguo Zhu Yongxin Jiang Yanhong |
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| Abstract: | 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. |
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| Keywords: | Subway station Cross-over Pipe curtain fore-poling Construction effect Three-dimensional finite element |
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