8888888888888道路改建工程3标高架跨线桥桥梁工程钻孔灌注桩专项施工方案编制人审核人批准人上海88888888建设工程有限公司888888888888道路改建工程3标项目部2017年11月9日8888公路改建工程3标钻孔灌注桩专项施工方案目录一、编制依据及原则..................................................................................................11、编制依据................................................................................................................12、编制目的................................................................................................................13、编制范围................................................................................................................2二、工程概况..............................................................................................................21、地质地貌................................................................................................................2三、施工部署..............................................................................................................41、施工场地布置........................................................................................................42、施工顺序................................................................................................................53、施工准备................................................................................................................53.1生产准备..................................................................................................................53.2技术准备..................................................................................................................53.3技术交接..................................................................................................................53.4安全交底..................................................................................................................6四、38#墩桩基施工....................................................................................................61、施工工艺................................................................................................................62、钻机的选型及安装................................................................................................72.1钻机的选型..............................................................................................................72.2钻机的安装..............................................................................................................83、泥浆的配置............................................................................................................93.1PHP优质泥浆的特点..............................................................................................93.2PHP优质泥浆的运用............................................................................................103.3回浆处理部分........................................................................................................113.4施工中应注意的问题............................................................................................114、钢护筒埋设..........................................................................................................114.1钢护筒的规格....................................................................
