桩基在逆作法地铁车站施工中的质量控制

On quality control of pile foundation in subway station construction with top-down method

结合石家庄地铁西三教站施工实例,介绍了盖挖逆作法施工中桩基的设计参数及桩基的施工流程,提出了桩基钢筋笼加工制作、施工过程、桩基后注浆等质量控制要点,以保证车站主体结构的安全可靠性。

Combining with Xisanjiao Station construction of Shijiazhuang Subway, the paper introduces the design parameter and construction pro- cedure of the pile foundation in the cover and cut method, and points out the quality control points for the reinforced cage processing, construction process, and pile foundation post-grouting, so as to ensure the safety and reliability of the main structure of the stations.