精品文档---下载后可任意编辑目录1 编制依据、原那么及范围..................................................3编制依据..............................................................3编制原那么............................................................3编制范围..............................................................42、工程概况、地质条件.....................................................4工程概况..............................................................4重难点分析............................................................63、总体施工方案...........................................................6框架桥预制总体方案....................................................6线路加固局部总体施工方案..............................................8扣轨加固线路.......................................................8人工挖孔桩和条形根底施工...........................................8纵、横梁安装.......................................................9框架桥顶进........................................................10工作坑降水施工.......................................................10人工挖孔桩及降水施工方案.............................................10纵横抬梁加固线路施工方案.............................................10框架预制施工方案.....................................................16、钢刃角、滑床板及后背梁施工方案..................................16、框架桥底板......................................................18、框架桥身........................................................18、框架桥防水层....................................................20冬季施工措施......................................................215、框架桥顶进方案........................................................22、顶进方法...........................................................22、顶力计算...........................................................236、施工组织..............................................................24施工组织机构、管理机构....................................