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介绍上海轨道交通9号线一期工程外环路站～合川路站区间,深31.9m、坑底位于⑦1承压含水层的虹莘路风井基坑工程设计以及开挖过程中一些关键问题的处理方法,提出关于钢筋混凝土支撑和坑底位于承压水层中基坑降水的一些建议。
This paper introduces the design of the foundation pit of Hongxin Road and its excavation in the section of Outer Ring Road to Hechuan Road of the first phase of Shanghai Metro Line 9, The paper put forward some suggestions on the foundation pit dewatering in the confined water layer of reinforced concrete support and pit bottom.