漯河市黑河西支下穿华电运煤专线铁路K0+599.3框架桥施工方案目录一、编制依据、原则......................................................................3二、工程概况.................................................................................3三、施工计划.................................................................................5四、施工方案.................................................................................74.1总体方案及步骤..............................................................................74.2线路架空..........................................................................................74.2.1架空施工作业流程：...................................................................74.2.2支点桩施工..................................................................................74.2.3轨枕间距调整..............................................................................84.2.4钢枕安装......................................................................................84.2.5D20型施工便梁架设.................................................................94.2.6线路监控测量..............................................................................94.3架空现浇施工流程.........................................................................104.3.1基坑开挖....................................................................................104.3.2混凝土垫层施工.........................................................................111漯河市黑河西支下穿华电运煤专线铁路K0+599.3框架桥施工方案4.3.3钢筋施工....................................................................................114.3.4模板及支架施工.........................................................................144.3.5混凝土施工................................................................................154.3.6防水层、沉降缝施工.................................................................194.3.7框架主体基坑回填.....................................................................214.3.8D20型施工便梁拆除................................................................224.3.9拆除钢枕.................................................................................224.3.10线路调整轨枕间距..................................................................224.3.11线路捣固及恢复.......................................................................224.3.12挡墙施工及围墙恢复................................................................22五、施工安全保障措施................................................................22六应急预案.................................................................................276.1成立预案专项小组.........................................................................286.2各项应急预案事故后处理工作......................................................296.3各项应急预案................................................................................296.4挖断管线应急预案.........................................................................302漯河市黑河西支下穿华电运煤专线铁路K0+599.3框架桥施工方案6.5基坑支护坍塌应急预案.................................................................306.6支点桩沉降应急预案.....................................................................326.7防汛应急预案...........................................................
