| 小半径曲线地铁隧道盾构施工技术 |
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| 引用本文： | 陈强.小半径曲线地铁隧道盾构施工技术[J].隧道建设,2009,29(4):446-450,474. |
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| 作者姓名： | 陈强 |
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| 作者单位： | 中铁二局股份有限公司城通公司工程部,上海,200336 |
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| 摘 要： | 针对上海市轨道交通9号线一期工程R413东西出入线的小半径盾构隧道施工的综合难题，采用数值模拟分析、文献调研等方法，对盾构机选择、管片选择、管片壁后注浆加固、临时纵向加强肋、加强螺栓复紧、盾构推进轴线预偏、盾构测量与姿态控制、盾构施工参数选择、土体损失及二次注浆、盾构纠偏量及盾尾与管片间的间隙控制等问题进行研究，并提出详细的施工和设计措施；进而对盾构进入缓和曲线后，盾构卡壳、盾尾管片外弧面碎裂、盾尾衬砌管片角部碎裂等施工难题给出解决措施，保障了小半径盾构隧道施工的顺利进行，对今后类似工程施工有一定的借鉴作用。
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| 关 键 词： | 盾构 小半径曲线 施工技术 |
| 收稿时间： | 2008-10-27 |
| 修稿时间： | 2009-06-03 |
Shield Boring Technology for Metro Tunnels on Curves with Small Radius |
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| CHEN Qiang.Shield Boring Technology for Metro Tunnels on Curves with Small Radius[J].Tunnel Construction,2009,29(4):446-450,474. |
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| Authors: | CHEN Qiang |
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| Institution: | Engineering Department of Chengtong Branch;China Railway No.2 Bureau Stock Co.;Ltd.;Shanghai 200336;China |
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| Abstract: | On basis of the problems met in shield boring of the small-radius curve section of the first stage R413 project on line 9 of Shanghai Metro,the author mainly studies on shield machine and segment selection,backfilling grouting behind the segments,temporary longitudinal strengthening rib,segment bolt re-tightening,offsetting of shield boring axis in advance,measurement and attitude control of shield machine,shield boring parameter selection,ground loss and secondary grouting,boring direction correcting,contr... |
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| Keywords: | shield curve with small radius construction technology |
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