坝后式水电站及其发电机机座结构稳定计算的设计说明书.doc
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- 坝后式 水电站 及其 发电机 机座 结构 稳定 计算 设计 说明书
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1、摘 要J电站在瓯江上游干流梯级开发的第一级水电站,工程以发电为主,兼顾航运、放木及防洪等综合利用要求。瓯江流域处浙东南沿海山区,属于年调节水库。本次设计的水库死水位为263.5m,正常蓄水位为283m。根据历史洪水资料设计洪水(P=0.1%),水库的设计洪水位289.5m。校核洪水位(P=0.01%)为291.8m。根据地形地质的特点选择坝型为重力坝,坝长270.5m。其中溢流坝段长142.5m,其中有8孔溢洪道,净宽102.5m。水电站进水口中心线高程251.04m。水电站装机容量为18万kW,四台机组单机4.5万kW。水轮机型号为HL220-LJ-300;为坝后厂房顶溢流式厂房,开关站布置
2、在右岸。主厂房总宽定为19m,总长68m。水轮机安装高程为202.19m。起重机选用电动双钩桥式起重机,最大起重量选2100吨,跨度选用16m。装配场长度取20.8m,进场公路布置在左岸。副厂房是为保证水电站正常运行需要,设置在主厂房与坝的间隙。主要布置各种机电辅助设备、房间、生产间和必要生活设施房间。AbstractJ plant is the first step hydropower station in upper reaches of the Oujiang River. The main purpose of the project is to generate electrici
3、ty, but also considered the woods of the shipping and protect floods. Oujiang River basin located in the southeast area which is near the say in Zheijang Province, and the plant is a year adjust reservoirThis design determined the dead water level is 263.5m, the normal water level is 283m. According
4、 to the historical flood date (P=0.1%), the designed flood level is 289.5m, the proofread level is 291.8m (P=0.01%).According to the characteristics of geology and topography, gravity dam was chosen. The total length of the dam is 270.5m, and the over-flow dam is 142.5m, and eighi holes over-flow ca
5、uses is set, and the last, the net width is 100m. The elevation of the water intake of the plant is 254.2m.The total electric capacity is 180,000kW,and four generates whose capacity is 45,000kW was installed. The type of the turbine is HL-220-LJ-300. The units are installed in the main power house.T
6、he width of the main power house is 19m,the length is 68m. All kinds of auxiliary equipment and other kinds of rooms assemble in deputy house.目录摘 要1Abstract11水文地址情况与枢纽布置81.1 流域概况81.2 水文与气候81.3 地形与地质111.3.1 水库区工程地质111.3.2 坝址地质111.4 天然建筑材料121.4.1 土料:121.4.2 砂石料:121.5给定设计控制数据121.5.1 设计资料121.5.2 设计任务131
7、.6枢纽布置132重力坝挡水坝段设计152.1剖面设计152.1.1坝顶高程的确定152.1.2坝底宽的确定162.1.3实用剖面182.2荷载计算(取单宽1米)192.2.1设计洪水位下荷载202.2.2校核洪水位下荷载212.3稳定分析222.3.1设计洪水位下稳定计算222.3.2校核洪水位下稳定计算222.4应力校核232.4.1原理232.4.2设计洪水位下242.4.3校核洪水位下242.5坝内构造252.5.1坝内廊道252.5.2坝基处理252.5.3 坝体分缝263重力坝溢流坝段设计273.1剖面设计273.1.1堰顶高程的确定273.1.2堰面曲线303.1.3下游反弧段3
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