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本文根据上海市世纪大道杨高路立交工程在地铁上部施工、监理 ,结合上海软土地基深基坑开挖的实际情况 ,选择适当的深基坑围护方案 ,依据时空计算结果 ,确定分段开挖范围、卸载量及顺序。进行了软土地基深基坑开挖与地下建筑物施工对下部地铁隧道保护的研究 ,提出了保护方法 ,使地铁隧道变形回弹得到有效控制。
According to the construction and supervision of Yanggao Road overpass project of Shanghai Century Avenue, combining with the actual situation of deep foundation pit excavation in Shanghai soft ground, the appropriate deep foundation pit support plan is selected, and according to the space-time calculation results, Range, unload volume and order. The study on the protection of the subway tunnel in the lower part of the excavation of the deep foundation pit in soft soil foundation and the construction of the underground building was put forward and the protection method was put forward to effectively control the deformation and rebound of the subway tunnel.