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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
收稿日期: 2015-05-15
修回日期: 2015-07-03
网络出版日期: 2015-09-22
基金资助
中国中铁股份有限公司科技开发计划项目(2012-19)
Effect of Foundation Pit Excavation on Existing Underlying Tunnel: Case Study on Chegongmiao Comprehensive Transportation Hub on Line 11 of Shenzhen Metro
Received date: 2015-05-15
Revised date: 2015-07-03
Online published: 2015-09-22
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
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 threedimensional 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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