目录1.编制依据..............................................................12.桩基工程概况..........................................................13.地址资料..............................................................13.1工程地质条件.......................................................13.2水文地质特征及评价：...............................................33.3不良地质和特殊阶段地质：...........................................43.4沿线地震动参数.....................................................54.施工组织安排..........................................................54.1工期目标..........................................................54.2组织结构..........................................................55.具体施工工艺..........................................................75.1工艺流程.............................................................75.1.1旋挖钻施工工艺流程图.............................................75.1.2回旋钻施工工艺流程图.............................................85.2施工准备.............................................................95.2.1施工场地.........................................................95.2.2泥浆制备.........................................................95.2.3安装钻机........................................................115.3施工工艺............................................................115.3.1测量放样.......................................................115.3.2护筒埋设........................................................115.3.3钻进成孔........................................................125.3.3.1旋挖成孔......................................................125.3.3.2回旋成孔......................................................135.4成孔检测、清孔....................................................145.5钢筋骨架吊放......................................................175.6预埋声测管........................................................195.7导管吊放及二次清孔................................................195.7.1导管的吊放....................................................195.7.2二次清孔......................................................205.8灌注水下混凝土....................................................206.钻孔桩质量检验标准...................................................237.劳动力组织...........................................................248.机具配置.............................................................259.对施工操作人员、施工机具的具体要求...................................2510.资料的归档整理......................................................2611.钻孔桩常见事故的预防及处理..........................................2611.1坍孔.............................................................2611.2钻孔偏斜.........................................................2711.3掉钻落物.........................................................2811.4扩孔和缩孔......................................................2811.5外杆折断.........................................................2911.6钻孔漏浆.........................................................2911.7钻孔桩断桩常见事故及处理.........................................3011.7.1首批混凝土封底失败...........................................3011.7.2供料和设备故障使灌注停工.....................................3011.7.3灌注过程中坍孔...........................
