报告编号：0308-Z-GZ-08
金沙江 中游河段
阿海水电站 施工详图设计阶段
截流规划设计报告
中国水电顾问集团昆明勘测设计研究院
二○○八年八月
审 定：许文涛
核 定：董 标
审 查：李宏祥 平有洪
校 核：谢勤
编 写：肖群香 李宏祥
工作主要人员：李宏祥 肖群香饶建勇 姚 东
平有洪郭必文
陈世全
金沙江中游阿海水电站施工详图设计阶段 【截流规划设计报告】
目 录
1 概述 ...................................................................................................... 1 1.1 枢纽布置及建筑物 .............................................................................. 1 1.2 工程总进度计划 .................................................................................. 1 1.3 编制依据 ............................................................................................. 1 2 基本条件 .............................................................................................. 2 2.1 水文条件 ............................................................................................. 2 2.2 地形、地质条件 .................................................................................. 6 3 施工总布置 ........................................................................................... 7 3.1 施工场地划分 ...................................................................................... 7 3.2 场内交通布置 ...................................................................................... 9 4 施工导流规划 ..................................................................................... 11 4.1 导流方式及导流标准 ......................................................................... 11 4.2 导流程序 ............................................................................................ 11 4.3 导流建筑物 .........................................................................................14 5 截流标准、时段及流量选择 ................................................................ 14 6 截流方案比选 ..................................................................................... 19 7 截流方案设计规划 .............................................................................. 20 7.1 截流戗堤布置 .....................................................................................20 7.2 截流戗堤断面设计 .............................................................................21 7.3 龙口位置及宽度 .................................................................................26 7.4 截流水力学计算 .................................................................................26 7.5 截流水力指标分析 .............................................................................32 7.6 龙口分区 ............................................................................................34 7.7 龙口保护 ............................................................................................35 7.8 截流抛投材料 .....................................................................................36 7.9 导流隧洞进、出口围堰及岩埂拆除 ..................................................38 7.10 截流原型观测 ..................................................................................39 7.11 截流模型试验成果 ...........................................................................39
i 金沙江中游阿海水电站施工详图设计阶段 【截流规划设计报告】
8 截流施工规划 ..................................................................................... 44 8.1 截流施工布置 .....................................................................................44 8.2 截流料源规划 .....................................................................................46 8.3 截流进度和程序 .................................................................................47 8.4 截流戗堤抛填要求 .............................................................................48 8.5 施工机械设备配置 .............................................................................48 9 截流前的工程形象面貌要求 ................................................................ 49 9.1 制定截流前形象面貌要求的原则 ......................................................49 9.2 导流建筑物 .........................................................................................50 9.3 主体工程 ............................................................................................51 9.4 交通工程 ............................................................................................51 9.5 水库征地、移民 .................................................................................51 9.6 水情测报 ............................................................................................51 10 2009年安全度汛的要求 .................................................................... 52 10.1 度汛标准 ..........................................................................................52 10.2 安全度汛要求 ..................................................................................52 10.3 超标准洪水预案 ..............................................................................53 11 结论及建议 ...................................................................................... 53 12 附图 ................................................................................................. 55
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