目录一、编制依据......................................................................3二、工程概况......................................................................4三、适用范围......................................................................4四、施工准备......................................................................44.1内业准备..................................................................44.2外业准备..................................................................5五、技术要求......................................................................55.1无砟道岔结构设计..........................................................55.2技术标准..................................................................75.2.1测量标准................................................................75.2.2道床施工标准............................................................75.2.3道岔铺设标准............................................................7六、施工程序与工艺流程...........................................................116.1施工程序.................................................................116.2施工工艺流程.............................................................11七、首件段道岔施工工艺...........................................................127.1施工准备.................................................................127.1.1道岔装卸...............................................................127.1.2道岔组件储存...........................................................147.2测量放样.................................................................157.2.1路基上无砟道岔支承层施工前处理.........................................157.2.2测量定位和基表埋设.....................................................157.2.3路基段支承层施工.......................................................157.2.4路基段端梁范围底座施工.................................................167.2.5道岔道床施工...........................................................207.2.5.1测量放样.............................................................207.2.5.2道床板底层钢筋施工...................................................217.2.5.3搭设组装平台.........................................................227.2.5.4道岔的拼装...........................................................227.2.5.5安装调整架...........................................................287.2.5.6道岔拼装尺寸检查.....................................................287.2.5.7拆除拼装平台.........................................................297.2.5.8上层钢筋施工.........................................................297.2.5.9接地钢筋焊接.........................................................297.2.5.10道岔粗调、第一次精调及尺寸检查......................................297.2.5.11电务转换设备预安装、调试与拆除......................................317.2.5.12安装道床板模板......................................................327.2.5.13浇筑混凝土前精调....................................................337.2.5.14道床板混凝土浇筑....................................................367.2.5.15养生、清理、拆除模板................................................397.2.6道岔焊接、精确调整、转辙器安装等后道工序...............................407.2.6.1道岔焊接.............................................................407.2.6.2道岔放散...
