xx铁路立交桥工程施工方案铁工程一处xx铁路立交桥项目部二○一三年五月目录1、编制依据.........................................................-1-xx铁路立交桥工程总体实施性施工方案2、工程概况.........................................................-1-3、周边环境.........................................................-3-3.1工程地理位置及既有铁路现状....................................-3-3.2地形地貌及工程地质情况........................................-3-3.3气象、水文特征................................................-3-3.4地震参数......................................................-4-4、工期安排及总体部署...............................................-4-4.1施工工期安排..................................................-4-4.2施工总体部署..................................................-4-4.2.1临时工程...................................................-4-4.2.1.1施工便道及生-、用电...................................-4-4.2.1.2施工通信..............................................-5-4.2.1.3砼搅拌站及料场........................................-5-4.2.1.4临时驻地建设..........................................-5-4.2.1.5施工人员总体配备计划...................................-5-4.2.2跨铁路线施工相关工作安排...................................-5-4.2.3施工总平面布置............................................-6-5、总体施工方案.....................................................-6-5.1主桥施工方案..................................................-6-5.2引桥施工方案..................................................-8-6、各分项工程施工工艺...............................................-8-6.1施工准备......................................................-8-6.2钻孔桩........................................................-9-6.2.1施工准备..................................................-9-6.2.2钻孔作业..................................................-9-6.2.3成孔检查.................................................-10-6.2.4清孔.....................................................-10-6.2.5钢筋笼的制作及安装........................................-10-6.2.6水下砼灌注................................................-10-6.3人工挖孔桩...................................................-11-6.3.1施工准备..................................................-11-6.3.2人工挖孔桩工艺流程........................................-11-2xx铁路立交桥工程总体实施性施工方案6.3.2.1施工工艺..............................................-11-6.3.2.2开挖方法..............................................-12-6.3.3钢筋笼的制作及安装........................................-14-6.3.4桩身混凝土的灌注..........................................-14-6.4承台施工.....................................................-15-6.4.1施工准备..................................................-15-6.4.2承台工艺流程..............................................-15-6.4.3基坑开挖..................................................-15-6.4.4承台施工..................................................-16-6.4.5大体积混凝土养护及测温....................................-17-6.4.6模板拆除..................................................-17-6.4.7基坑土回填................................................-17-6.5转体下盘、球铰、滑道、牵引系统安装施工.......................-17-6.5.1下球铰安装................................................-18-6.5.2滑道安装..................
