乌溪江-湖南镇水电站毕业设计

水利水电工程专业毕业设计I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。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5×4=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；乌溪江水电站厂房设计及岔管设计IIAbstractTheWuxijianghydropowerstationislocatedinHuNanTowninZheJiangprovince,whichbelongstoachainofexploitation.Accordingtothedemandoftopographicform,Ichoosediversionhydropowerstation.Thegeologyconditionisgood.Themainconstructionconcludethewaterretainingstructure(theconcretenon–over-falldam),thereleaseworks(theconcreteover–falldam),thediversionstructure(pressureseepagetunnel,thesurge-chamber),andthesurfacepowerstation.Thedesignwaterlevelis238m,itscorrespondingflowamountis6000m3/s.Thechecklevelis241m,itscorrespondingflowis9700m3/s.Theregularwaterretaininglevelis231m.Thedamsiteisneartheformersaddle.Thecrestelevationofthenon-over-falldamis243.4m,andthebaseelevationis112m,Themaxheightofthedamis130.3m,Theupstreamdamslopeis1:0.10,thedownstreamdamslopis1:0.77,thespillwaycrestelevationis224.2m.Theinduceroftheseepagetunnelislocatedattherecessplace,Thelengthoftunnelis1100m,thediametricofwhichis8.70m.Thesurge-chamberislocatedatthemountain,whichis280mfromtheworkshopbuildingandistypeisdifferentialmotion水利水电工程专业毕业设计III目录第一章设计基本资料...................................11.1.地理位置................................................................................................................................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....................................................................................................................202.3.4.排水孔........................................................................................................................202.3.5.坝基地基处理............................................................................................................212.4.溢流坝消能防冲措施...........................................................................................................21第三章水轮机选型....................................223.1.水头Hmax、Hmin、Hr确定..............