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在天津软弱地层和林立的建筑群间进行深基坑施工,为确保深基坑的施工安全,必须要有科学、合理及完善的施工技术。对天津地铁3号线和平路站采用盖挖逆作法的施工技术、工艺进行了深入探讨,比较了各种施工方法的优劣,提出“盖挖逆作法”施工需要进一步解决的问题,通过理论分析对施工方案进行了比选,对施工的关键环节进行了重点阐述。为今后天津地铁及更多的地下工程盖挖逆作法施工提供参考。
Deep foundation pit construction should be carried out between soft formations and lush buildings in Tianjin. To ensure the safety of deep foundation pit construction, it is necessary to have scientific, reasonable and complete construction techniques. In this paper, the construction technology and process of the cover and cut-off method in Heping Road Station of Tianjin Metro Line 3 are discussed in depth. The advantages and disadvantages of various construction methods are compared and the problems that need to be further solved in the construction of " Through the theoretical analysis of the construction program were compared and selected, the key aspects of construction were highlighted. For the future of Tianjin subway and more underground construction dug reverse construction method to provide reference.