富水地层既有地铁车站扩宽改造关键技术研究

Research on Key Reconstruction Technology for Widening Existing Subway Station in Water-rich Strata

既有地铁车站改造工程设计复杂、施工困难、风险极大。基于此,文章针对佛山地铁2号线富水地层既有车站扩宽改造施工典型案例,详细分析和阐述了该既有地铁车站改造施工中面临的一系列施工难点和风险点,并通过采取一系列有针对性的技术措施及应对方案,很好地解决了现场存在问题,降低了施工风险,保障了施工安全,使得富水地层既有地铁车站扩宽改造工程得以顺利施工,可为后续类似工程施工提供参考和借鉴。

The reconstruction project of existing subway station is complicated in design,difficult in construction and extremely risky.Based on the typical widening reconstruction case of the existing stations on Foshan Subway Line 2 in water-rich stratum environment,a detailed analysis and elaboration on a series of construction difficulties and risk points faced in the reconstruction of the existing subway stations is made,and by means of a series of targeted technical measures and solutions,the problems existing at the site have been well solved,the construction risks have been reduced,and the construction safety has been guaranteed,making the widening reconstruction project of the existing subway stations in water-rich stratum successfully constructed,which provides a reference for the construction of subsequent similar projects.