| 软土地层中盾构施工对既有地铁沉降的影响分析 |
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| 引用本文： | 韦凯. 软土地层中盾构施工对既有地铁沉降的影响分析[J]. 华东交通大学学报, 2007, 24(2): 58-61 |
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| 作者姓名： | 韦凯 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,200331 |
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| 摘 要： | 针对上海地铁七号线下穿地铁二号线的实际,利用ADINA软件对施工过程进行模拟,来分析盾构施工对既有地铁沉降的影响.通过对施工中不同影响因素的对比分析,发现由于土体超挖、不及时施作管片和注浆未紧跟等因素引起的不同应力释放率会对既有地铁沉降产生较大影响.
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| 关 键 词： | 盾构隧道 应力释放率 三维有限元 |
| 文章编号： | 1005-0523（2007）02-0058-04 |
| 收稿时间： | 2007-03-16 |
| 修稿时间： | 2007-03-16 |
Analysis of the Underground Pipeline Deformation Control Factors with Shield Tunnel Excavation beneath It in Soft Soil |
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| WEI Kai. Analysis of the Underground Pipeline Deformation Control Factors with Shield Tunnel Excavation beneath It in Soft Soil[J]. Journal of East China Jiaotong University, 2007, 24(2): 58-61 |
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| Authors: | WEI Kai |
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| Affiliation: | Key Laboratory of Road and Traffic Engineering of Ministry of Education, Tongji University, Shanghai 200331, China |
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| Abstract: | According to the actual situation of the fact that Shanghai 7th Metro lines get through from beneath Shanghai 2nd Metro lines,the model built by the ANINA program is used to analyze the influence of the shield construction on the settlement of the existing Metro.Through the comparative analysis of the different influencing factors,it is found that the different stress release rates which result from more digging soil,not timely stitching segment and not timely grouting and so on greatly influence the settlement of the sewer. |
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| Keywords: | shield tunnel stress release rate 3D finite element |
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