目 录 1 编制依据 ......................................................................................................................... 1 2 适用范围 ......................................................................................................................... 1 3 施工方法及工艺要求 ..................................................................................................... 1 ３.1 施工准备 ................................................................................................................... 1 3.2 埋设护筒 ..................................................................................................................... 2 3.3 钻机就位及钻孔 ......................................................................................................... 3 3.4 清孔 ............................................................................................................................. 4 3.5 钢筋笼骨架的制作安装 ............................................................................................. 4 3.6 导管安装 ..................................................................................................................... 6 3.7 灌注水下混凝土 ......................................................................................................... 6 4 质量检测 ......................................................................................................................... 9 5 钻孔桩常见事故的预防及处理 ..................................................................................... 9 5.1 钢筋笼上浮 ............................................................................................................... 1 0 5.2 坍孔 ........................................................................................................................... 1 0 5.3 钻孔偏斜 ..............................................................................................
