京沪高速铁路土建工程JHT J-6 标段四工区 CRTSⅡ型板式无砟轨道 道岔板施工作业指导书 编制: 复核: 审核: 中国交通建设股份有限公司 京沪高速铁路土建六标项目经理部四工区 二〇一〇年六月十日 目 录 一、工程概况 ............................................................................................ 1 二、施工工艺 ............................................................................................ 1 2.1桥梁上岔区底座板施工 ..................................................................... 1 2.1.1桥梁上岔区底座板工艺流程图 ..................................................... 1 2.1.2挤塑板及滑动层铺设 ..................................................................... 2 2.1.3道岔区底座板钢筋绑扎 ................................................................. 5 2.1.4模板安装及加固 ............................................................................. 6 2.1.5温差电偶安装 ................................................................................. 7 2.1.6道岔底座板砼浇筑 ......................................................................... 8 2.1.7养护 ................................................................................................. 8 2.2道岔区轨道板粗铺 ............................................................................. 8 2.2.1道岔板粗铺施工准备 ..................................................................... 8 2.2.2道岔板吊装 ................................................................................... 1 0 2.2.3道岔板精调 ................................................................................... 1 1 2.3 CA砂浆灌注施工 ............................................................................. 2 4 2.3.1CA砂浆灌注的施工工艺流程 ....................................................... 2 4 2.3.2 道岔板边缝密封 .......................................................................... 2 5 2.3.3 道岔板固定 ..........................