金溪至抚州高速公路L3标段**大桥钻孔桩施工作业指导书编制：审核：审定：中交第二航务工程局有限公司金溪至抚州高速公路L3标段项目经理部二0一三年七月目录1.编制依据.............................................42.工程概述.............................................52.1概述............................................................52.2地质条件........................................................62.3.1水流速度............................................................................................................62.3.2水位资料............................................................................................................63.**大桥陆上桩基钻孔桩施工................................83.1施工准备........................................................83.2桩基施工方案....................................................83.3主要施工方法....................................................83.3.1施工流程......................................................93.3.2钻机选型及配置...................................................................................................93.3.3钻机就位及钢护筒埋设..................................................................................103.3.4钻进成孔..........................................................................................................123.3.5清孔及检测.........................................................................................................203.3.6提钻移机.............................................................................................................203.3.7成孔检测方法及标准.........................................................................................203.3.8钢筋笼制安及运输.............................................................................................213.3.9导管安放.............................................................................................................263.3.10第二次清孔.......................................................................................................283.2.11钻孔灌注桩施工...............................................................................................283.3.12桩基检测...........................................................................................................313.3.13检测管压浆.......................................................................................................324.**大桥水上墩桩基钻孔桩施工..............................334.1桩基施工方案...................................................334.2主要施工方法...................................................334.2.1施工流程.....................................................334.2.2施工准备..........................................................................................................344.2.3钻机就位..........................................................................................................384.2.4钻进成孔..........................................................................................................395.溶洞处理措施.........................................415.1施工准备..............................................................................................................415.2钻进过程中溶洞处理..........................................................................................425.3砼灌注过...
