国道G105慢行系统交通整治工程旋挖钻孔灌注桩专项施工方案目录一、编制依据-------------------------------------------------------------------------1二、编制原则-------------------------------------------------------------------------1三、工程概述-------------------------------------------------------------------------11、界涌、沥溪、南溪天桥桥型布置图--------------------------------------------12、桥桩位坐标表-------------------------------------------------------------------------53、桥梁桩基工程量汇总---------------------------------------------------------------6四、旋挖钻孔灌注桩施工组织机构及职责---------------------------------10五、施工总体目标-----------------------------------------------------------------101、工期目标------------------------------------------------------------------------------102、质量目标------------------------------------------------------------------------------103、安全目标------------------------------------------------------------------------------104、环境保护及文明施工目标-------------------------------------------------------105、职业健康安全目标-----------------------------------------------------------------10六、旋挖钻施工方案--------------------------------------------------------------111、旋挖钻施工原理及优势----------------------------------------------------------111.1旋挖钻孔灌注施工原理----------------------------------------------------------111.2旋挖钻优势---------------------------------------------------------------------------132、施工流程------------------------------------------------------------------------------143、施工准备------------------------------------------------------------------------------173.1技术准备------------------------------------------------------------------------------173.2机械设备准备------------------------------------------------------------------------173.3测量准备------------------------------------------------------------------------------183.4试验准备------------------------------------------------------------------------------183.5物质材料准备------------------------------------------------------------------------183.6施工场地布置-----------------------------------------------------------------------18广州市第二市政工程有限公司1国道G105慢行系统交通整治工程旋挖钻孔灌注桩专项施工方案3.7测量放样------------------------------------------------------------------------------183.8钢护筒制作及埋设-----------------------------------------------------------------183.9钻机就位------------------------------------------------------------------------------194、钻进成孔------------------------------------------------------------------------------194.1泥浆制备------------------------------------------------------------------------------194.2钻进-------------------------------------------------------------------------------------204.3终孔-------------------------------------------------------------------------------------224.4清孔及检测---------------------------------------------------------------------------225、钻孔过程中孔内事故的预防及处理------------------------------------------235.1卡埋钻具------------------------------------------------------------------------------235.2主卷扬钢绳拉断--------------------------------------------------------------------235.3动力头内套磨损、漏油---------------------...
