地铁车站深基坑土方开挖技术的探讨

The Discussion on the Deep Excavation Technology of Subway Station Foundation Pit

随着全国城市化发展速度的加快,城市外来人口的数量也在快速增加[1]。交通拥堵随之也变成了各大城市所面临的重大问题之一,这样就带来了城市地下空间的开发和利用的热潮,主要是地铁的施工,地铁车站的深基坑土方开挖是地铁工程的一个重要部分,土方开挖的方式与工程进度成本有很大关系[2]。通过对广州地铁13号线8标东洲站深基坑土方开挖过程中的经验进行总结,对遇水易软化的地层的深基坑土方开挖过程中要注意的事项提出了一些建议[3]。

With the speeding up of the urbanization development, the number of urban floating population is rapidly increasing, and the traffic jams then became one of the biggest issues faced by cit？ies, so it has brought the urban underground space development and utilization of boom. The subway construction is the main proj？ects of it. The earthwork excavation of subway station deep foun？dation pit is an important part of the subway engineering, and the way of the earthwork excavation has a great relationship with the project schedule, cost. Through summarizing the experience in the process of the deep foundation pit earthwork excavation of the Dongzhou Station of No.8 standard section of Guangzhou subway Line 13, some points for attention of layer easy to be softened in water in the deep foundation pit earthwork excavation are suggest？ed.