| 深圳地铁11号线车公庙综合交通枢纽工程两相邻基坑开挖对下卧运营隧道的影响 |
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| 引用本文： | 丁加亮,陈江,余富先,唐贤海. 深圳地铁11号线车公庙综合交通枢纽工程两相邻基坑开挖对下卧运营隧道的影响[J]. 隧道建设, 2015, 35(9): 867-872. DOI: 10.3973/j.issn.1672-741X.2015.09.002 |
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| 作者姓名： | 丁加亮 陈江 余富先 唐贤海 |
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| 作者单位： | （1. 中铁隧道集团三处有限公司， 广东深圳 518000； 2. 中南大学土木工程学院， 湖南长沙 410075） |
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| 基金项目： | 中国中铁股份有限公司科技开发计划项目（2012-19） |
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| 摘 要： | 以深圳地铁11号线车公庙站交通枢纽工程为研究背景,分析西端风道基坑开挖和紧邻西端风道的11号线车站基坑开挖对既有深圳地铁1号线隧道的影响,采用三维有限元软件ABAQUS对隧道无保护措施和对土体加固措施2种工况进行计算,分析基坑开挖引起既有隧道的变形规律和旋喷桩的加固效果。同时在隧道内安装自动化监测系统,对隧道变形进行实时监测,通过反馈的监测数据对隧道变形情况进行分析,确保运营隧道的安全。结果表明:旋喷桩加固可以有效地减少隧道隆起的位移。
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| 关 键 词： | 深圳地铁 两相邻基坑开挖 西端风道 既有隧道 旋喷桩 监测 三维数值分析 |
| 收稿时间： | 2015-05-15 |
Effect of Foundation Pit Excavation on Existing Underlying Tunnel:Case Study on Chegongmiao Comprehensive Transportation Hub on Line 11 of Shenzhen Metro |
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| DING Jialiang,CHEN Jiang,YU Fuxian,TANG Xianhai. Effect of Foundation Pit Excavation on Existing Underlying Tunnel:Case Study on Chegongmiao Comprehensive Transportation Hub on Line 11 of Shenzhen Metro[J]. Tunnel Construction, 2015, 35(9): 867-872. DOI: 10.3973/j.issn.1672-741X.2015.09.002 |
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| Authors: | DING Jialiang CHEN Jiang YU Fuxian TANG Xianhai |
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| Affiliation: | (1. The Third Engineering Co., Ltd. of China Railway Tunnel Group, Shenzhen 518000, Guangdong, China; 2. School of Civil Engineering, Central South University, Changsha 410075, Hunan, China) |
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| Abstract: | The impact of the excavation of the foundation pits of the west ventilation tunnel and the station of Chegongmiao〖JP〗 comprehensive transportation hub on Line 11 of Shenzhen Metro on the existing tunnel of Line 1 of Shenzhen Metro is analyzed in the paper. The rule of the deformation of the existing tunnel induced by the excavation of the foundation pits, as well as the consolidation effect of the jet grouting piles, is analyzed by means of three dimensional finite element program ABAQUS. Furthermore, the deformation of the existing tunnel is analyzed on basis of the measured data. It is concluded that the jet grouting consolidation can effectively reduce the uplift displacement of the existing tunnel. |
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| Keywords: | Shenzhen Metro adjacent foundation pits west ventilation tunnel existing tunnel jet grouting pile monitoring three dimensional numerical analysis |
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