地铁车站基坑围护结构方案比选

Comparison and selection of enclosing structure plan for metro station foundation pit

基坑围护结构方案常常参考地区经验,采用类比法进行工程设计,对于新建地铁城市而言,围护结构方案需要进行大量调研、比选和商讨后确定。以太原地铁首条地铁线首开段车站为依托,对车站主体基坑围护结构方案的选取过程进行阐述,基于地铁车站基坑特点,最终选用了太原地区较少采用的地下连续墙方案。

Usually,for the plan of foundation pit enclosing structure,experiences in the region are referred to,analog method is used for engineering design. For cities with new-built metro system,in order to decide the plan for enclosing structure,a lot of investigations,comparisons and discussions shall be made prior to the final decision. In this paper,supported by the metro station of the firstly been-constructed section in Taiyuan metro,it describes how the pit enclosing structure plans were compared and selected; and based on the characteristics of the metro station pit,underground diaphragm wall was finally chosen,which is a less employed plan in Taiyuan area.