| 城市地铁喇叭口过渡段隧道施工技术研究及数值模拟分析 |
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| 引用本文： | 丁春林,孟祥兵,陈力. 城市地铁喇叭口过渡段隧道施工技术研究及数值模拟分析[J]. 岩石力学与工程学报, 2004, 23(15): 2528-2533 |
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| 作者姓名： | 丁春林 孟祥兵 陈力 |
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| 作者单位： | 1. 同济大学道路与交通工程教育部重点试验室,上海,200331
2. 中铁四局集团有限公司,合肥,230023 |
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| 摘 要： | 某城市轨道交通三号线喇叭口过渡段隧道位于左线与联络线交叉处，隧道断面大，断面变化点多，且隧道顶部离30^#楼桩基很近。为了减少暗挖施工对地层的扰动和控制地表沉降，采用合理的工法施工显得很有必要。针对区间喇叭口隧道特点，提出用眼镜工法和辅助工法施工，并采用弹塑性有限单元法对工法按施工步进行分步模拟计算，为施工、设计提供依据。
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| 关 键 词： | 隧道工程 地铁 喇叭口隧道 眼镜工法 数值模拟 |
| 文章编号： | 1000-6915(2004)15-2528-06 |
| 收稿时间： | 2002-01-22 |
| 修稿时间： | 2002-04-03 |
NUMERICAL SIMULATION AND CONSTRUCTION TECHNIQUES OF TRANSITIONAL TRUMPET-LIKE TUNNEL OF METRO |
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| Ding Chunlin,Meng Xiangbing,Chen Li. NUMERICAL SIMULATION AND CONSTRUCTION TECHNIQUES OF TRANSITIONAL TRUMPET-LIKE TUNNEL OF METRO[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(15): 2528-2533 |
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| Authors: | Ding Chunlin Meng Xiangbing Chen Li |
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| Affiliation: | Ding Chunlin1,Meng Xiangbing2,Chen Li1 |
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| Abstract: | The transitional trumpet-like tunnel in Line No.3 of Rail Transit System of a given city lies at the intersection between the left line and the connection line. The cross section of the tunnel is large and has many variation points,and the top of the tunnel is close to the pile foundation of Building No.30. In order to reduce the disturbance induced by the embedded excavation on stratum and control the ground settlement,it is necessary to adopt reasonable execution techniques. Based on characteristics of the trumpet-like tunnel,spectacle and auxiliary techniques are proposed,and the elastoplastic finite element method is used to simulate the process in the construction sequences. |
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| Keywords: | tunneling engineering metro trumpet-like tunnel spectacle technique auxiliary technique numerical simulation |
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