上海延安东路越江隧道长2261m,其施工盾构的外径为11.26m,是上海跨越黄浦江的第二条隧道。建造在软土地基中的1号竖井位于上海市中心,采用地下连续墙法施工,直径为28m,深30m,开挖深度为18.7m。对这类大型竖井无论在设计或施工方面都缺乏经验。本文介绍了土工试验和分析计算,土工离心模型试验和现场原体监测成果。 The Yanjiang River Tunnel in Shanghai is 2,261 meters long. Its outer diameter of the shield is 11.26 meters. It is the second tunnel across the Huangpu River in Shanghai. The No. 1 shaft built in the soft soil foundation is located in the center of Shanghai. It is constructed by the method of underground continuous wall. The diameter is 28m, depth is 30m, and excavation depth is 18.7m. There is no experience in designing or constructing such large shafts. This paper introduces the geotechnical test and analysis calculations, the geotechnical centrifugal model test and the on-site monitoring of the original body.