地铁车站深基坑支护及降水施工技术研究

Research on Deep Foundation Pit Support and Precipitation Construction Technology of Subway Station

【目的】地铁车站建设由于基坑深度和周围环境的复杂性,对基坑支护技术的要求越来越高。通过研究深基坑支护及降水施工技术,可以解决工程施工中存在的难题。【方法】以某地铁车站为研究对象,以工程地质勘查资料为研究基础,对相关区域地质、水文条件进行综合分析评价。【结果】采用降水施工与支护相结合的技术手段对深基坑进行开挖,解决了施工过程中存在的重难点问题,并对关键技术进行了总结分析。【结论】研究表明,采用降水施工与支护相结合的技术手段对深基坑进行开挖,能够有效地控制基坑内的水位,确保工程施工的安全和稳定,为类似深基坑工程的施工提供了一定的指导意义。

[Purposes]Due to the complexity of foundation pit depth and surrounding environment,the construction of subway station has higher requirements for foundation pit supporting technology.By studying the construction technology of deep foundation pit supporting and dewatering,the problems existing in the construction can be solved.[Methods]Based on the engineering geological exploration data,this paper takes a subway station as the research object,and then the relevant regional geological and hydrological conditions was comprehensively analyzed and evaluated.[Findings]The technical means of dewatering construction and support were used to excavate deep foundation pit,which solved the difficult problems existing in the construction process,and the key technologies were summarized and analyzed.[Conclusions]The research shows that using the technical means of dewatering construction and support to excavate the deep foundation pit can effectively control the water level in the foundation pit,ensure the safety and stability of the project construction,and provide a certain guiding significance for the construction of similar deep foundation pit projects.