黄河拉西瓦水电站施工技术要求
LXW X05A-2007
坝后消能建筑物混凝土施工技术要求
（第A版）
中国水电顾问集团西北勘测设计研究院
2007年3月
批 准核 定审 查校 核编 写
张友科侯延华王亚娥杜生宗郭宏彦雷丽萍
目 录
1 编制说明 ...................................................................................................................... 1 2 总 则 .......................................................................................................................... 1 3 模板 .............................................................................................................................. 4 3.1 一般规定 .................................................................................................................... 4 3.2 模板材料 .................................................................................................................... 4 3.3 模板的制作 ................................................................................................................ 5 3.4 模板安装 .................................................................................................................... 5 3.5 模板拆除 .................................................................................................................... 7 4 钢筋 .............................................................................................................................. 8 4.1 一般规定 .................................................................................................................... 8 4.2 钢筋材质及检验 ........................................................................................................ 8 4.3 钢筋储存 .................................................................................................................... 9 4.4 钢筋的代换 ................................................................................................................ 9 4.5 钢筋加工 .................................................................................................................. 10 4.6 钢筋接头 .................................................................................................................. 10 4.7 钢筋安装 .................................................................................................................. 12 4.8 锚筋桩接长 .............................................................................................................. 13 5 混凝土原材料 ............................................................................................................ 13 5.1 水泥 .......................................................................................................................... 13 5.2 粉煤灰........................................................................................................................ 14 5.3 骨料 .......................................................................................................................... 15 5.4 水 .............................................................................................................................. 16 5.5 外加剂 ...................................................................................................................... 17 5.6 原材料的质量检验 .................................................................................................. 17 6 混凝土配合比 ............................................................................................................ 18 7 建基面清基 ................................................................................................................ 19 8 混凝土施工 ................................................................................................................ 20 8.1 一般规定 .................................................................................................................. 20
8.2 施工缝面处理 .......................................................................................................... 21 8.3 混凝土拌和 .............................................................................................................. 22 8.4 混凝土运输 .............................................................................................................. 23 8.5 混凝土浇筑基本要求 .............................................................................................. 24 8.6 混凝土振捣 .............................................................................................................. 25 8.7 雨季施工 .................................................................................................................. 26 8.8 结构混凝土 .............................................................................................................. 26 8.9 泵送混凝土 .............................................................................................................. 27 8.10 二期混凝土.............................................................................................................. 28 8.11 勘探洞（施工支洞）封堵混凝土 ........................................................................ 28 8.12 拖模混凝土 ............................................................................................................ 29 8.13 抗冲耐磨混凝土 .................................................................................................... 29 8.14 混凝土温度控制设计标准 .................................................................................... 30 8.15 温控措施要求 ........................................................................................................ 31 8.16 裂缝处理 ................................................................................................................ 36 9 预埋件 ........................................................................................................................ 36 9.1 一般规定 .................................................................................................................. 36 9.2 止水片、排水管、排水沟 ...................................................................................... 37 9.3 混凝土冷却水管 ...................................................................................................... 39 9.4 拱座预应力锚索预埋管道 ...................................................................................... 39 9.5 机电、给排水、通风、金结管道及埋件 .............................................................. 39 9.6 观测仪器 .................................................................................................................. 41 9.7 插筋 .......................................................................................................................... 42 10 混凝土的表面缺陷处理 .......................................................................................... 42 10.1 混凝土表面处理 .................................................................................................... 42 10.2 检查 ........................................................................................................................ 42 10.3 修补面处理 ............................................................................................................ 43 10.4 修补要求 ................................................................................................................ 43 11 质量检测与控制 ...................................................................................................... 44 11.1 混凝土原材料的质量检验 .................................................................................... 44
11.2 混凝土拌和质量检验 ............................................................................................ 44 11.3 混凝土取样强度检测 ............................................................................................ 45 11.4 混凝土质量控制 .................................................................................................... 45 11.5 基础面或混凝土施工缝处理的质量检查 ............................................................ 46 11.6 混凝土工程建筑物的成型质量复测 .................................................................... 46 11.7 混凝土工程建筑物的质量检查 ............................................................................ 46 11.8 混凝土质量的钻孔抽样检查 ................................................................................ 47 11.9 混凝土温控与养护及保护检查 ............................................................................ 47 12 工程验收 .................................................................................................................... 48 12.1 验收一般要求 ........................................................................................................ 48 12.2 工序验收检查 ........................................................................................................ 48 12.3 中间产品质量检查验收 ........................................................................................ 48 12.4 单元工程验收 ........................................................................................................ 49 12.5 分部工程验收 ........................................................................................................ 49 12.6 工程蓄水验收 ........................................................................................................ 49 12.7 合同完工验收、单位工程验收 ............................................................................ 50 12.8 工程竣工验收及需要的资料 ................................................................................ 50