下荒冲大桥人工挖孔桩施工方案一、 编制说明及依据......................................11.1 编制说明............................................11.2 编制依据............................................1二、 工程概况............................................1三、 施工组织............................................23.1 技术准备............................................23.2 现场准备............................................33.3 劳动力准备..........................................43.4 施工机械设备准备....................................43.5 施工进度计划........................................6四、 挖孔桩施工方法......................................64.1 开挖顺序............................................64.2 每次循环进尺深度....................................64.3 开挖方法............................................64.4 出土及提升..........................................74.5 钢筋笼制作安装......................................74.6 混凝土浇筑方法......................................7五、 挖孔桩施工工艺......................................75.1 施工工艺流程........................................75.2 施工工艺............................................8六、 挖孔桩终孔验收及成桩的质量检测.....................126.1 挖孔桩终孔验收.....................................126.2 成桩质量检测.......................................136.3 钢筋制安质量检测...................................146.4 桩身混凝土质量检查.................................14七、 施工保证措施.......................................157.1 质量保证措施.......................................157.2 安全保证措施.......................................177.3 安全用电技术措施...................................187.4 坠落事故预防.......................................197.5 窒息、 中毒事故的预防..............................197.6 雨季施工措施.......................................197.7 其它安全技术措施...................................20八、 施工环保、 水保保持措施....................
