110KVXXX 线迁改工程铁塔桩基础施工方案编写单位编写日期： 目 录第一节、工程概况...........................................................4一、工程概况...........................................................4二、项目质量目标.......................................................5三、编制依据...........................................................5第二节、施工前准备.........................................................5一、林木砍伐和房屋拆迁.................................................5二、拟建基塔位置现貌及施工场地平整.....................................6三、测量放线...........................................................8四、技术交底...........................................................9第三节、钻孔灌注桩施工.....................................................9一、机械配备...........................................................9二、钻孔灌注桩的施工工艺..............................................101、钻孔灌注桩的施工工艺流程.......................................102、钻孔灌注桩的施工顺序...........................................123、施工步骤.......................................................124、埋设护筒.......................................................125、钻机成孔.......................................................136、成孔...........................................................157、清孔...........................................................158、成孔、下钢筋笼.................................................159、灌注混凝土.....................................................1610、质量标准......................................................17第四节 基础承台的施工...................................................19一、基础承台施工顺序..................................................19二、土方开挖施工......................................................19三、旧砼表面打毛去浮浆................................................19四、绑扎桩头、梁钢筋..................................................19五、基础模板施...
