乌溪江水电站厂房设计及岔管设计说明书(二).doc
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1、摘 要乌溪江水电站座落于浙江省乌溪江,湖南镇,属于梯级开发电站,根据地形要求,其开发方式为有压引水式。坝区地质条件较好,主要建筑物(砼非溢流坝),泄水建筑物(砼溢流坝),引水建筑物(有压引水遂洞,调压室),地面厂房。水库设计洪水位238m(千年一遇),相应的下泄流量6000m3/s;校核洪水位241m(万年一遇),相应的下泄流量9700m3/s;正常挡水位231m.本设计确定坝址位于山前峦附近,非溢流坝坝顶高程242.3m。坝底高程106m。最大坝高130.3m。上游折坡坡度1:0.10,下游坝坡坡度1:0.77,溢流坝堰顶高程224.2m。引水遂洞进口位于坝址上游凹口处,遂洞全长1100m。
2、洞径8.7m,调压室位于厂房上游280m左右处,高程180m的山峦上,型式为差动式。厂房位于下游荻青位置。设计水头92.91m,装机容量54=20万kw,主厂房净宽17.4m,总长59.50m。水轮机安装高程115.66m,发电机层地面高程128.03m,装配场层地面高程129.95m,校核尾水位129.45m。厂房附近布置开关站,主变等。受地形限制,尾水平台兼作公路用,坝址与厂区通过盘山公路连接,形成枢纽体系。由此可见,本设计是合理可行的。关键词:乌溪江,水利枢纽;挡水建筑物;泄水建筑物;稳定;应力;水轮机;引水隧洞;调压室;厂房; AbstractThe Wuxijiang hydropo
3、wer station is located in HuNan Town in ZheJiang province ,which belongs to a chain of exploitation .According to the demand of topographic form ,I choose diversion hydropower station . The geology condition is good .The main construction conclude the water retaining structure (the concrete non over
4、-fall dam) ,the release works (the concrete over fall dam) ,the diversion structure (pressure seepage tunnel ,the surge-chamber ) ,and the surface power station .The design water level is 238 m ,its corresponding flow amount is 6000 m3/s .The check level is 241 m ,its corresponding flow is 9700 m3/s
5、 .The regular water retaining level is 231m .The dam site is near the former saddle .The crest elevation of the non-over-fall dam is 243.4 m ,and the base elevation is 112m ,The max height of the dam is 130.3 m ,The upstream dam slope is 1:0.10 ,the downstream dam slop is 1:0.77 ,the spillway crest
6、elevation is 224.2 m .The inducer of the seepage tunnel is located at the recess place ,The length of tunnel is 1100 m ,the diametric of which is 8.70 m .The surge-chamber is located at the mountain , which is 280 m from the work shop building and is type is differential motion目 录第一章 设计基本资料11.1.地理位置
7、11.2.水文与气象11.2.1水文条件11.2.2.气象条件31.3.工程地质31.4.交通状况31.5.既给设计控制数据3第二章 枢纽布置、挡水及泄水建筑物52.1.枢纽布置52.1.1.枢纽布置形式52.1.2坝轴线位置比较选择52.2.挡水及泄水建筑物52.2.1.坝高确定52.2.2.挡水建筑物砼重力坝62.2.2.1.剖面设计62.2.2.2.坝基面稳定及应力计算92.2.3.泄水建筑物砼溢流坝152.2.3.1堰顶高程152.2.3.2溢流坝实用剖面设计162.2.3.3溢流坝稳定应力计算182.3.坝内构造202.3.1.坝顶结构202.3.2.坝体分缝202.3.3.坝内廊道
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