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本科毕业设计

水电站闸坝枢纽工程设计说明书

摘 要

鱼潭水电站位于四川省某自然保护区境内，系岷江一级支流熊猫河干流上的梯级电站。电站规划装机24MW，为有压引水式开发方案。闸址位于岩谷大桥下游约700m处，该处布置有引水发电隧洞取水口，经过约2.6km的压力隧洞至调压井，然后接约300m长的压力钢管至规划厂址处获得约46m水头。闸坝左岸有省级干道公路通过，交通方便。熊猫河系岷江右岸支流，全长87.9km，流域面积1742 km2。鱼潭水电站闸址距河口约30km，控制流域面积1467 km2，占全流域的84％。为保护区内水力资源丰富，目前熊猫河干支流上已装机326.8MW，约占其理论蕴藏量的37.5％。XX 电站出线将以110千伏一回送入四川主网，它的兴建不仅可以扩大电网的规模，支援四川主网电力，更重要的是对加速振兴保护区经济，办好自然保护区，保护珍稀动植物有着重大的经济意义和社会意义。此前区内已开发兴建的约6.8MW小型水电站的电力，除用于区内大量的农副产品加工、保护区研究中心科研用电、农民以电代柴及生活照明外，多余容量均已送入四川主网。为加强区内生态环境保护，鱼潭水电站的部分电力将用于进一步实施“以电代柴”，调整区内能源结构。

关键词：水利枢纽；闸坝；全闸方案；枢纽布置

1 The abstract

The Yutan is in a nature egis borough of Sichuan province, and it is a rundle of the Panda River potamic trunk which is a anabranch of Minjiang River.The mark out 24MW capability.And it is a press citation station. The milldam address locates big bridge downstream in the rock valley about the 700 meters. the place's decoration gone to adjust to press well, then connected the pressure steel pipe that grows about the 300 meters to go to the power plant site to acquire about the 46 meters water ,the traffic is so conveniency.The Panda river is on the right bank of Minjiang river, it is 87.9 kilo meters long, the drainage area is 1742 km.The milldan address is 30 km long from the bayou, control 1467 km drainage area,is of the 84％ of the drainage area.The nature egis’s water resource is wealth, Now the river of the Panda stand a line will with once 110 kilo-Volts send a present in return to go into a Sichuan main net.It is not only can accelerate the economy of the nature egis borough,do well for the nature egis borough, and it will protect the rarity animal and foliage.That is ’s electric power.Those power is for process the farm produce,for investigate center,for farmer’s living illuming or using electricity to substitute firewood.And the superabundance of the power all sending to Sichuan main net. In order to strengthen the ecosystem of the area, parts of electric powers will used for the further implement\electricity substitute firewood\

22Keyword: Hydraulic pivot; milldam; entirely milldam project; Pivot lay

2 目录

第一章 绪言 ................................................................................................................................... 4 第二章 设计资料综合说明 ........................................................................................................... 5 第一节 流域概况 ..................................................................................................................... 5 第二节 枢纽任务和开发方式 ................................................................................................. 5 第三节 气象水文资料 ............................................................................................................. 6 第四节 工程地质 ..................................................................................................................... 9 第五节 建筑材料 ................................................................................................................... 13 第六节 施工条件砼 ............................................................................................................... 14 第三章 工程等级及建筑物的级别 ........................................................................................... 16 第一节 工程等级 ................................................................................................................... 16 第二节 洪水标准 ................................................................................................................... 17 第三节 地震 ........................................................................................................................... 17 第四章 坝轴线选择及首部枢纽布置 ......................................................................................... 18 第一节 坝址、坝型选择 ....................................................................................................... 18 第二节 首部枢纽 ................................................................................................................... 19

1 总论 ........................................................................................................................... 19 2 拦河闸 ....................................................................................................................... 20 3 闸孔设计 ................................................................................................................... 21 4 闸室设计 ................................................................................................................... 22 5 闸室的布置和构造 ................................................................................................... 26 6 两岸连接挡水重力坝段。 ....................................................................................... 27 7 铺盖和护坦 ............................................................................................................... 29 8 下游导墙设计 ........................................................................................................... 30 9 止水、排水和抗磨措施 ........................................................................................... 32 10 闸顶工作桥及交通桥 ............................................................................................. 32 11 防渗措施 ................................................................................................................. 33

第五章 进水口设计 ..................................................................................................................... 36 第一节 进水口建筑物型式的比较 ....................................................................................... 36 第二节 进水口的布置 ........................................................................................................... 37 第三节 进水口的高程及尺寸确定 ....................................................................................... 37 第六章 公路改建 ......................................................................................................................... 39 参考资料 ................................................................... 40 结束语 ..................................................................... 41

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