反循环钻孔灌注桩施工方案.docx

目 录 1编制依据及编制原则 ................................................................ 1 1.1编制依据 ..........................................................................................1... 1.2编制原则 ..........................................................................................1... 2工程概况............................................................................ 1 2.1工程特点及工程量 ..................................................... 1 2.2气候、地形、地貌特征 ................................................. 2 3施工配置............................................................................ 2 3.1人员配置 ............................................................. 2 3.2材料配置 ............................................................. 3 3.3主要机械设备配置 ..................................................... 4 4工期安排............................................................................ 4 5反循环钻孔灌注桩施工 ................................................................ 4 5.1施工准备 ............................................................. 6 5.2测量放线 ............................................................. 6 5.3泥浆制作 ............................................................. 6 5.4护筒埋设 ............................................................. 7 5.5反循环钻孔灌注桩施工 ................................................. 7 5.6 检 孔 ................................................................. 8 5.7 清 孔 ................................................................. 9 5.8下钢筋笼 ............................................................. 9 5.9灌注水下混凝土 ...................................................... 10 5.10 检桩及压浆 ......................................................... 12 6质量标准........................................................................... 13 6.1钢筋加工 ............................................................ 13 6.2钢筋加工及安装 ...................................................... 13 6.3钻孔灌注桩混凝土 .................................................... 14 7质量保证措施.............