铁路隧道二衬钢筋接头机械连接施工技术研究  

Research on mechanical connection construction technology of railway tunnel two-lined steel joint

作　　者：唐耿军 TANG Gengjun(China Railway 11th Bureau Group,Wuhan 430000,China)

机构地区：[1]中铁十一局集团有限公司,湖北武汉430000

出　　处：《中国高新科技》2023年第6期71-73,共3页

摘　　要：文章结合某在建铁路多座隧道二衬钢筋连接现场施工,主要对二衬钢筋接头挤压套筒施工技术进行研究,采用挤压机将套筒挤压变形,通过套筒与钢筋承压咬合作用,将一根钢筋中的力传递至另一根钢筋的连接方法。通过对挤压连接好的试件抽样进行极限抗拉强度试验,优化施工工艺工装,得出最佳施工参数,从而解决施工过程中常见的工效较低、安全性较低、质量难以满足设计及规范的要求的问题。In this paper,combined with the construction site of several railway tunnels under construction,the construction technology of the joint extrusion sleeve of the second lining steel bar is mainly studied.The telescopic deformation of the sleeve is used by an extruder.Through the occlusal action of the sleeve and the steel bar,the force in one steel bar is transferred to another steel bar.Through the ultimate tensile strength test of the specimens with good extrusion connection,the construction process tooling is optimized and the optimal construction parameters are obtained.In order to solve the common construction process of low effi ciency,low safety,quality is diffi cult to meet the requirements of the design and specifi cation.

关 键 词：铁路隧道 二衬钢筋 机械连接 施工质量 

分 类 号：TU755[建筑科学—建筑技术科学]