人工挖孔桩施工方案(专家论证).pdf

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1、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯精品资料推荐⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯××市×××高架快速路建设工程××桥梁桩基挖孔灌注桩专项施工方案编制人：审核人：审批人：中国建筑第×工程局有限公司ChinaConstructionSeventhEngineeringdivision.corpLtd.2012年6月0⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯精品资料推荐⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯目录一、编制依据.....................................................6二、工程概况............

2、.........................................6三、施工条件.....................................................73.1、地形、地貌...............................................73.2、地质条件.................................................73.3自然地理情况..............................................83.3.1水文.............

3、....................................83.3.2气候、气象...........................................83.3.3地下水位情况.........................................93.3.4地下管线情况.........................................9四、施工方法.....................................................94.1人工挖孔桩工艺流程及施工方法...................

4、...........94.1.1工艺原理.............................................94.1.2作业特点............................................104.1.3机具设备............................................104.2人工挖孔桩施工工艺.......................................104.2.1整体施工原则及顺序..................................104.2.2施工流程....

5、........................................104.2.3场地平整............................................114.2.4放线定桩位..........................................124.2.5开挖第一节土方......................................121⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯精品资料推荐⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4.2.6护壁立模................................

6、............124.2.7浇筑第一节护壁混凝土................................134.2.8第一节桩身桩位检查..................................134.2.9架设垂直运输架......................................144.2.10安装安全保障设施...................................144.2.11开挖吊运第二节桩孔土方.............................144.2.12第二节护壁立模................

7、.....................144.2.13浇筑第二节护壁混凝土...............................154.2.14检查桩位中心轴线及标高.............................154.2.15循环作业...........................................154.2.16成孔检查验收.......................................154.2.17制作及吊装钢筋笼