Construction Method and Control Measure for Connecting Passage inWater-enriched Sand Bed
WANG Hui1, ZHU Wei-bin2, LI Da-yong3
1. Guangzhou Subway Design and Research Institute, Guangzhou, Guangdong 510010, China; 2. Guangzhou Metro Corporation, Guangzhou, Guangdong 510010, China; 3 Shandong University of Science and Technology, Qingdao, Shandong 266510, China
Abstract：Research purposes: Through analyses and comparisons of the construction characteristics and dangers of four construction methods for the connecting passage in water-enriched sand bed, the construction method and control measures related to the design and construction are offered for construction of the underground connecting passage in water-enriched sand bed to guarantee the construction quality and safety.
Research conclusions: For construction of the connecting passage in water-enriched sand bed, the artificial ground freezing method is a prior construction method featured with high reliability and no pollution of groundwater and ground. Moreover, in order to ensure the successful and safe application of the artificial ground freezing method, the duct piece at the tunnel portal of the connecting passage should be designed specially. In order to reduce the impact of expansive soil on the tunnel, the internal support should be installed in the tunnel to effectively control the tunnel deformation. The special measures should be taken in the process of freezing, such as installation of safe door to prevent the appearance of accident. In addition, to install pressure-releasing holes and use heat -cycling and trace grouting methods are effective.
王 晖，竺维彬，李大勇. 富水砂层中联络通道施工工法及其控制措施[J]. 铁道工程学报, 2010, 27(9): 82-87.
WANG Hui, ZHU Wei-bin, LI Da-yong. Construction Method and Control Measure for Connecting Passage inWater-enriched Sand Bed. 铁道工程学报, 2010, 27(9): 82-87.
Bao Yongliang, Zheng Qizhen, Tang Jianzhong. Monitoring Analysis of Construction for Connecting Aisle in Metro Tunnel with Freezing Method [ J ]. Journal of Railway Engineering Society, 2009(3): 93 - 95.
L i Dayong, Wang Hui, Zhang Qinghe. Safety Guarantee Measures for the Freezing Construction of Metro Communication Passage [ J ]. Architecture Technology, 2004(11): 821 -822.
L i Dayong, Lv Aizhong, Zhang Qinghe. Analysis of Freezing Method for Construction of Connected Aisle in Nanjing Metro Tunnels [J]. Chinese Journal of Rock Mechanics and Engineering, 2004(2): 234 -238.
[5] Crippa C., Manassero V. Artificial ground freezing at Sophiaspoortunne.l Freezing parameter: data acquisition and proceeding. GoeCongress 2006: 1 -6.
Li Dayong, Wang Hui, Zhang Qinghe. Measures Analysis of Freezing Method Applied to Connected Aisle in Nanjing Metro Tunnel [ J ]. Rock and Soil Mechanics, 2003(S): 365 -368.
[7] Holden J. Improved thermal computations for artificially frozen shaft excavations. Journal of geotechnical and geoenviron mental engineering. 1997 (8): 696 -701.
Yue Fengtian, Zhang Shuibin, Li Wenyong, etc. Study on Thaw Settlement Grouting Applied to Connected Aisle Construction with Artifical Ground Freezing Method in Metro Tunnel [ J ]. Rock and Soil Mechanics, 2008(8): 2283 -2286.
2010, Vol. 27 
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