本文介绍了上海地铁盾构进出洞封门及土体加固设计和施工技术,提出了洞周土体加固范围的解析公式。以上海地铁2~#,4~#盾构进出洞为实例进行了理论计算和实际情况的调查比较,所得结论及意见可供施工设计单位参考。 In this paper, the design and construction techniques of the entrance and exit of shield tunnel in Shanghai Metro are introduced. The analytical formulas for the consolidation range of soil around the tunnel are presented. Taking the 2 ~ # and 4 ~ # shield tunnels of Shanghai Metro as an example, the theoretical calculation and the actual situation are compared and the conclusions and opinions are available for reference by the construction design unit.