地铁车站出入口明挖段围护桩施工关键技术  

Key Technology of Retaining Pile Construction in Open-Cut Section of Subway Station Entrance and Exit

作　　者：高国帅 GAO Guoshuai(China Railway 18th Bureau Group Municipal Engineering Co.,Ltd.,Tianjin,300222,China)

机构地区：[1]中铁十八局集团市政工程有限公司,天津300222

出　　处：《石家庄铁路职业技术学院学报》2025年第1期64-67,76,共5页Journal of Shijiazhuang Institute of Railway Technology

摘　　要：地铁车站出入口属于深基坑工程,多采用明挖法施工,其安全性十分考验支撑体系的可靠性,实际工程中常采用围护桩支护结构。结合具体工程实例,从围护桩成孔、钢筋笼制作和吊装以及水下混凝土灌注三个方面探讨围护桩施工关键技术,并分析邻近管线沉降情况,保证围护桩施工的可靠性,减少对邻近结构物的扰动,确保基坑施工安全,以期为类似工程施工提供借鉴。The entrances and exits of subway stations are deep foundation pit engineering,mostly constructed by open-cut method.Their safety is a great test for the reliability of the support system.In practical engineering,retaining pile support structures are often adopted.In this paper,combined with specific engineering examples,the key technologies of retaining pile construction are discussed from three aspects:pile hole forming,reinforcement cage fabrication and hoisting,and underwater concrete pouring.It also analyzes the settlement of adjacent pipelines to ensure the reliability of retaining pile construction,reduce the disturbance to adjacent structures,and ensure the safety of foundation pit construction,so as to provide a reference for similar engineering construction.

关 键 词：地铁车站出入口 明挖法 围护桩 成孔 钢筋笼吊装 

分 类 号：TU74[建筑科学—建筑技术科学]