xx 市长征东路跨清河桥工程钻孔桩水中施工方案编制： 复核：审批：中铁 xx 工程局 xx 市 xx 河大桥项目部2025 年 8 月 18 日目 录一、编制依据........................................................4二、工程概述........................................................4三、结构设计原则....................................................5四、施工准备........................................................54.1、设备物资...................................................54.2、施工现场准备...............................................6五、施工工艺流程图..................................................76.1、水上平台施工工艺流程图.....................................76.2、拉森钢板桩施工工艺流程图...................................7六、施工方法及步骤..................................................86.1、水上平台施工方法及步骤.....................................86.1.1、钢管桩的制作及吊装堆放................................86.1.2、插打钢管桩............................................86.1.3、桩顶处理..............................................96.1.4、焊接平撑及斜撑........................................96.1.5、安装横梁..............................................96.1.6、安装纵梁（贝雷梁）....................................96.1.7、铺装面板.............................................106.1.8、护栏安装.............................................106.2、拉森钢板桩施工方法及步骤..................................106.2.1、施工准备.............................................106.2.2、测量定位.............................................106.2.3、插打钢板桩...........................................106.2.4、基坑开挖.............................................136.2.5、基坑排水.............................................136.2.6、封底混凝土施工.......................................136.2.7、钢板桩拔出...........................................13七、平台设计及计算.................................................147.1 设计参数.................................................
