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针对上海铁路枢纽南站主站屋基坑工程,在既有铁路运行线横穿基坑中部的不利环境条件下,为保证铁路正常运营,减少铁路路基及基坑的变形,降低施工成本,同时保证工程顺利实施,在施工过程中,通过合理划分施工块及流程组织,有效的围护设计及优化,实际施工操作及实时监测跟踪等措施,提出了铁路横穿基坑的不利环境条件下大面积深基坑顺利实施的一些关键施工技术,为类似工程实施提供借鉴。
In order to ensure the normal operation of the railway, reduce the deformation of railway subgrade and foundation pit and reduce the construction cost, under the unfavorable environment conditions that the existing railway runs through the middle of the foundation pit for the main station of Shanghai Railway Terminal South Station, In order to ensure the smooth implementation of the project, during the construction process, through the reasonable division of construction blocks and process organization, effective enclosure design and optimization, actual construction operation and real-time monitoring and tracking measures, the paper puts forward that under the unfavorable environmental conditions Some key construction techniques for the smooth implementation of deep foundation pit area provide reference for the implementation of similar projects.