4.1 设计原则 ......................................................................................................................... 24 4.2 剖面拟定要素 ................................................................................................................. 24
4.2.1坝顶高程的拟定 .................................................................................................. 24 4.2.2坝顶宽度的拟订 .................................................................................................... 25 4.2.3坝坡的拟订 ............................................................................................................ 25 4.2.4上、下游起坡点位置的确定 ................................................................................ 26 4.2.5剖面设计 .............................................................................................................. 26 4.3抗滑稳定分析与计算 ...................................................................................................... 27
4.3.1分析的目的 .......................................................................................................... 27 4.3.2滑动面的选择 ........................................................................................................ 27 4.3.3对坝基面进行抗滑稳定计算 ................................................................................ 27 4.4应力分析 .......................................................................................................................... 28
4.4.1目的 ...................................................................................................................... 28 4.4.2分析方法 .............................................................................................................. 28 4.4.3 计算基本公式 ..................................................................................................... 28 4.3.4应力计算 .............................................................................................................. 29
第五章 溢流坝段设计 ................................................................................................................... 34
5.1 泄水建筑物方案比较 ..................................................................................................... 34
5.1.1泄洪方案选择 ...................................................................................................... 34 5.2 工程布置 ......................................................................................................................... 35
5.2.1 溢流表孔 ............................................................................................................. 35 5.3 溢流坝剖面设计 ............................................................................................................. 35
5.3.1顶部曲线 ................................................................................................................ 35 5.3.2中间直线段的确定 ................................................................................................ 37 5.3.3反弧段 .................................................................................................................... 37 5.4 消能防冲设计 ................................................................................................................. 38
5.4.1 消能方案选择 ..................................................................................................... 39 5.4.2 水舌挑距L的估算 ............................................................................................. 40 5.4.3 冲刷坑深度的估算 ............................................................................................. 41
第六章 细部构件设计 ................................................................................................................... 42
6.1 坝顶结构 ......................................................................................................................... 42 6.2 廊道系统 ......................................................................................................................... 43
6.2.1基础灌浆廊道 ........................................................................................................ 43 6.2.2检查排水廊道 ........................................................................................................ 43 6.3 坝体分缝 ......................................................................................................................... 44
6.3.1横缝 ........................................................................................................................ 44 6.3.2纵缝 ........................................................................................................................ 44 6.3.3水平施工缝 ............................................................................................................ 44 6.4止水 .................................................................................................................................. 44 6.5 坝体排水 ......................................................................................................................... 45
6.5.1坝体排水： .......................................................................................................... 45
第七章 地基处理设计 ................................................................................................................... 46
7.1 地基开挖与清理 ............................................................................................................. 46 7.2 坝基的固结灌浆 ............................................................................................................. 46
1
7.3 坝基的帷幕灌浆 ............................................................................................................. 47 7.4 坝基排水 ......................................................................................................................... 48 7.5 软弱结构面处理 ............................................................................................................. 48 参考文献......................................................................................................................................... 49 致谢 ................................................................................................................................................ 50
III
八泉峡水利枢纽设计（重力坝方案）
摘要
八泉峡水库拟建于壶关县桥上村上游约4公里处的八道水河上，该河属卫河流域郊沟河的一级支流，流域控制面积75.7km2。工程主要以发电为主。在设计中，结合已知的地址及水文资料，首先选取为混凝土重力坝坝型，然后进行水库水位调洪演算，得到设计洪水位886.77m，校核洪水位887.95m。对挡水建筑物剖面进行设计，确定坝高65.5m，采用3*7m表孔溢流，对挡水坝段进行抗滑稳定分析以及应力分析，结果均满足要求。最后确定消能防冲的方案，以及对大坝进行细部构件设计。
关键词：枢纽设计 混凝土重力坝 剖面设计 稳定分析 应力分析
I
Abstract
Eight springs gorge reservoir is proposed to be built in Huguan County Bridge Village Tour about 4 km of eight water river, the river is a tributary of the Wei River Basin Jiao Gou River, watershed area 75.7km2. The project is mainly to generate electricity. In the design, combined with the address and the hydrological data of known, first select the concrete gravity dam, and the water level of the reservoir flood routing, design flood 886.77m, check flood level 887.95m. Design of the retaining structure section, determine the height of 65.5m, using 3*7m table hole overflow, the anti sliding stability analysis and stress analysis of dam section, the results meet the requirements. Finally determine the energy dissipation scheme, and the detail component design of dam
Key words: pivot design concrete gravity dam profile design stability analysis stress analysis
1