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随着经济的飞速发展,越来越多的城市在兴建地铁,地铁施工总离不开车站的施工。对大量的地铁基坑设计,特别是软土地基中基坑设计进行分析,可以看出地铁基坑具有很大的相似性,较常用的支护形式为内支撑加地连墙或围护桩。一般来讲,地铁基坑施工中钢支撑的使用量较大,为施工中最大的周转材料,需结合施工方案慎重考虑采购的方式。另外如果基坑形式具有相似性,那么对特定车站进行的分析对其他车站是具有指导意义的。
With the rapid economic development, more and more cities in the construction of the subway, subway construction can not be separated from the station construction. Based on the analysis of a large number of subway foundation pit design, especially the design of foundation pit in soft soil foundation, it can be seen that the foundation pit has a great similarity. The more common form of support is the internal support plus wall or retaining pile. In general, the use of steel support in the construction of subway foundation pit is large, which is the largest turnover material in the construction. It is necessary to carefully consider the procurement method in combination with the construction scheme. In addition, if the pit forms are similar, the analysis of a particular station is instructive to the other stations.