14 种桩基及地基处理工艺流程图（w ord 版） 目 录 1.挖孔桩 .................................................................................................... 2 1．1 人工挖孔灌注桩施工工艺流程图 ................................................ 2 2．钻孔灌注桩 .......................................................................................... 2 2．钻孔灌注桩 .......................................................................................... 3 2.1 回转钻成孔正循环清孔工艺流程图 .............................................. 3 2.2 回转钻成孔反循环清孔工艺流程图 .............................................. 4 2.3 冲击成孔正循环清孔工艺流程图 .................................................. 5 3. 沉管灌注桩 .......................................................................................... 6 3．1 沉管灌注桩施工工艺流程图 ........................................................ 6 3.2 引孔沉管灌注桩施工工艺流程图 .................................................. 7 4．长螺旋压力灌注桩 .............................................................................. 7 4．长螺旋压力灌注桩 .............................................................................. 8 4.1 长螺旋压灌砼桩施工工艺 .............................................................. 8 4.2 长螺旋压浆桩施工工艺 .................................................................. 8 5. 预制桩 .................................................................................................. 9 5.1 预制桩锤击沉桩法施工工艺 .......................................................... 9 5.2 预制桩静压法施工工艺流程 ........................................................ 1 0 6．预压 .................................................................................................... 11 6．1 真空预压工艺流程图 ................................................................ 1 1 7.搅拌桩 .................................
