某地铁车站深基坑降水施工方法研究

Study on Dewatering Construction Method of Deep Foundation Pit of a Subway Station

在地铁车站施工过程中,深基坑开挖是整个施工活动的基础,不仅工程量较大且复杂性较高。地下水往往是限制地下工程基坑开挖的重要因素。为了顺利完成地下建筑主体结构施工以及隧道等深基坑工程的挖掘施工,防止基坑破坏及边坡或基底的土层颗粒流失,提高土体固结强度,增加地基抗剪强度,在深基坑开挖过程中,必须采取有效的降水措施,使周围土体保持稳定,从而营造安全、稳定的施工环境。论文就地铁车站深基坑降水施工方法展开讨论,包括深基坑降水控制、降水施工方法以及施工关键点控制。

In the process of subway station construction, the excavation of deep foundation pit is the foundation of the whole construction activity. Groundwater is often the important factors limiting foundation pit excavation in underground engineering. In order to successfully complete the construction of the main structure of underground buildings and the excavation of tunnels and other deep foundation pit engineering construction, prevent foundation pit damage and soil particles loss of slope or base, improve the consolidation strength of soil,increase the shear strength of foundation, in the process of deep foundation pit excavation, effective dewatering measures must be taken to keep the surrounding soil stable, so as to create a safe and stable construction environment. This paper discusses the dewatering construction methods of deep foundation pit of subway station, including dewatering control of deep foundation pit, dewatering construction method and control of construction key points.