成都华川集团营达高速LJ08合同段人工挖孔桩专项施工方案目录第一章编制依据........................................................................................................................................1第二章工程概况........................................................................................................................................1一、工程设计概况................................................................................................................................11、工程概况..................................................................................................................................1第三章、施工部署........................................................................................................................................3一、施工目标........................................................................................................................................3二、人员、设备准备............................................................................................................................3三、材料准备........................................................................................................................................4四、作业条件........................................................................................................................................4五、进度计划........................................................................................................................................4第四章、主要施工方法................................................................................................................................4一、施工测量........................................................................................................................................41、主轴线控制网的布设..............................................................................................................52、桩心的定位测量......................................................................................................................53、第一节护壁成型后的测量工作............................................................................................54、测量技术复核工作..................................................................................................................5二、人工挖孔桩成孔施工....................................................................................................................61、孔桩开挖施工组织..................................................................................................................62、施工方法..................................................................................................................................63、护壁施工................................................................................................................................124、成孔........................................................................................................................................135、终孔检查................................................................................................................................146、注意事项.........................................................................................................................
