电厂灌注桩管桩工程桩基施工施工组织(编辑修改稿)

电厂灌注桩管桩工程桩基施工施工组织(编辑修改稿)内容摘要：

....57 3 施工方法及技术控制措施 ..............................................................................57 测量放线 ..................................................................................................57 控制点布置与保护 ...........................................................................57 桩位测放 ...........................................................................................58 测量放线的检查、验收与保护 .......................................................59 泥浆系统的布置与泥浆制备、处理、排放 ..........................................59 泥浆系统的组成与布置 ...................................................................59 泥浆制备 ...........................................................................................60 泥浆处理与排放 ...............................................................................61 护筒埋设 ...................................................................................................61 护筒埋设步骤 ....................................................................................62 护筒埋设的做法及注意事项 ............................................................62 成孔 .........................................................................................................63 6 施工组织设计 覆盖层钻进 ......................................................................................63 岩层钻进 ..........................................................................................64 钻进 .............................................................................................64 确定达到设计入岩深度 ............................................................65 成孔时应注意的问题 .......................................................................65 成孔质量验收 ...................................................................................65 泥浆指标检测 ............................................................................66 孔径检测 .....................................................................................66 钻孔深度、沉渣厚度检测 .........................................................66 清孔 ....................................................................................................67 钢筋笼制作与运输 ..................................................................................67 钢筋验收、堆放与标识 ...................................................................67 钢筋验收质量标准及检验项目 .......................................................67 钢筋质量标准、检验项目和检验频率 ....................................67 钢筋取样方法及取样要求 .........................................................68 钢筋笼制作工艺流程 .......................................................................68 钢筋除锈与调直 ...............................................................................68 钢筋焊接 ...........................................................................................69 主筋焊接 ....................................................................................69 加筋箍筋焊接 ............................................................................70 钢筋焊接接头的质量检查 ........................................................70 检验项目 .............................................................................70 取样要求 .............................................................................71 结果评定 .............................................................................71 钢 筋笼成型 .......................................................................................72 钢筋笼制作允许偏差 .......................................................................73 钢筋笼的验收与成品保护 ...............................................................73 7 施工组织设计 钢筋笼运输 .......................................................................................73 混凝土搅拌及运输 ..................................................................................73 砼搅拌系统施工布置 .......................................................................73 砼搅拌站的选择 ...............................................................................73 砼搅拌站的要求 ...............................................................................74 砼搅拌流程 .......................................................................................74 砼质量标准 .......................................................................................74 混凝土原材料质量检验 ...................................................................75 原材料质量标准、检验项目和检验频率 ................................75 混凝土原材料取样方法及取样要求 ........................................76 散装水泥 .............................................................................76 砂石料 .................................................................................76 外加剂 .................................................................................76 粉煤灰 .................................................................................76 搅拌要求 ...........................................................................................77 试块制作 ...........................................................................................77 砼运输 ................................................................................................78 水下混凝土灌注 .......................................................................................78 钢筋笼吊放与定位 ............................................................................78 钢筋笼的吊放 .............................................................................78 钢筋笼孔口连接 .........................................................................79 钢筋笼定位 .................................................................................79 下设导管 ............................................................................................80 二次清孔 ............................................................................................80 水下砼灌注 ......。