水资源利用与规划毕业论文.doc

'沅水五强溪水库水利计算水资源利用与规划毕业论文目录1基本情况…………………………………………………………………31.1流域概况………………………………………………………………31.2开发任务………………………………………………………………31.3设计任务………………………………………………………………41.4设计前提………………………………………………………………41.5设计内容………………………………………………………………51.6设计原始资料…………………………………………………………52兴利计算………………………………………………………………102.1基本资料整理………………………………………………………102.2死水位的确定………………………………………………………102.3保证出力计算………………………………………………………132.4水电站必需容量选择………………………………………………152.5水电站调度图绘制…………………………………………………162.6重复容量选择与多年平均电能计算………………………………203防洪计算………………………………………………………………243.1水库调洪计算………………………………………………………243.2坝顶高程的确定……………………………………………………2678 沅水五强溪水库水利计算4经济计算………………………………………………………………294.1方案一工程费用……………………………………………………294.2其它方案工程费……………………………………………………324.3防洪效益……………………………………………………………394.4经济比较……………………………………………………………40附表………………………………………………………………………45附图………………………………………………………………………7078 沅水五强溪水库水利计算1基本情况1.1流域概况五强溪水电站位于湖南省沅陵县境内，上离沅陵县城73km，下距常德市130km。坝址控制流域面积83800km2，占沅水总流域面积的93%，流域雨量充沛，水量丰富，坝址多年平均流量2060m3/s，年水量649×108m3，并有1925年以来的水文资料和核实的历史洪水资料。坝址位于沅水干流最后一段峡谷出口处，岩性坚硬，地形地质条件良好。具备了修筑高坝的自然条件。在沅水规划中，五强溪水电站为沅水干流最后第二个梯级，上游接虎皮溪及酉水的风滩（已建成）梯级，是一个以发电为主，兼有防洪、航运效益的综合利用水库，系湖南省最大的水电电源点。1.2开发任务五强溪水电站是以发电为主、兼有防洪、航运和灌溉等效益的综合利用工程。其开发任务分述如下：1．发电五强溪水电站建成后投入华中电网，主要供电范围为湖南省。2．防洪沅水下游赤山以西的桃源、常德、汉寿三县及常德市所属平原河网地区，统称沅水尾闾。这个地区地势低洼。全靠提防保护，共保护人口106万，农水159万亩。现有河道的泄洪能力20000m378 沅水五强溪水库水利计算/s，如遇1927、1931、1933、1935、1943、1949、1954、1969等年洪水重现，河道均不能完全承泄，防洪标准仅为5年一遇。五强溪水库靠近沅水尾闾，控制全流域面积的93%，解决尾闾防洪问题，是它的基本防洪任务。3．航运五强溪水电站的航运效益为改善水库区和坝下游河道的通航条件。沅水是湘西的水上交通动脉，其干流全长1550km，通航里程为640km，但航道险滩很多。五强溪水库修建以后，坝址以上，沅水以下河段成为常年深水区，其险滩都将淹没。下游航道，确定五强溪航运基荷按10万kw相应流量考虑，枯水流量加大，上、下游航道均可改善。4．灌溉每年自5月下旬至9月下旬为灌溉季节，在该季节自水库上游直接引走的灌溉流量平均为35m3/s。1.3设计任务本次设计任务是对五强溪水电站的诸方案（即正常蓄水位）已给的情况下，进行水库的兴利与防洪计算，确定各方案水利设备的参数，水库的调节操作方式及计算水利指标，并通过经济分析，比较方案之优劣。1.4设计前提1．本水利枢纽是以发电、防洪为主要目标的综合利用水库；2．水电站参加系统工作，发电设计保证率P=87.5%（按年份计）；3．水电站的备选方案（正常蓄水位）见表1.1；表1.1备选方案正常蓄水位表方案ⅠⅡⅢⅣ正常蓄水位（m）12011510810078 沅水五强溪水库水利计算4．本水利枢纽根据国家规定属一级，以千年一遇洪水为设计标准，万年一遇洪水为校核标准，电站使用年限为50年计；5．水库库区蒸发渗漏等水量损失不大，故在初步设计阶段暂时不考虑；6．水库下游有防洪要求，设计标准为二十年一遇洪水，安全泄洪流量q安=20000m3/s。1.5设计内容1．水电站死水位选择及保证出力NP计算；2．水电站装机容量选择；3．绘制水电站调度图的防破坏线，加大出力辅助线，确定汛期限制水位；4．求重复容量，计算水电站多年平均电能；5．进行防洪计算，确定各种防洪特征水位及坝顶高程；6．求水利指标；7．经济计算，比较方案优劣。1.6设计原始资料1．坝址以上流域面积F=83800km2；2．坝址断面历年月平均流量资料（见附表一）；3．水库水位～面积、库容曲线见表1.2；4．坝址下游水位流量关系曲线见表1.3；5．为改善下游通航条件，确定五强溪航运基荷按10kw计；6．船闸操作需要耗用10m3/s，此部分流量不能用来发电；78 沅水五强溪水库水利计算表1.2水库水位～面积、库容曲线表高程（m）5060708090100110120130140面积（km2）07.24020.50339.49164.988111.184187.915297.288462.987647.004容积108m300.2411.5924.52149.69218.49033.34657.34995.058151.578m3/s.月09.17560.65172.13369.0703.961269.572183.433619.115770.97表1.3坝址下游水位流量关系曲线表水位m流量m3/s水位m流量m3/s水位m流量m3/s水位m流量m3/s48.520453.0332057.5947066.02520049.035053.5336058.01030067.02720049.554554.0442059.01200068.02930050.079554.5504060.01370069.03160050.5112055.0572061.01560070.03380051.0149055.5645062.01750071.03600051.5190056.0720063.01930072.03830052.0235056.5795064.02120073.04030052.5282057.0970065.02320074.0434007．每年5月下旬至9月下旬为灌溉季节，在该季节自水库上游直接引走的灌溉流量平均为35.0m3/s，此部分流量亦不能用来发电；78 沅水五强溪水库水利计算8．在沅水规划中，五强溪水电站上游将干流的虎皮溪及酉水的风滩（已建成）梯级，其尾水水位124m及114.2m，各正常蓄水位方案对上游风滩的影响见表1.4；表1.4各正常蓄水位方案对上游风滩的影响方案（正常蓄水位）Ⅰ（120m）Ⅱ(115m)Ⅲ(108m)Ⅳ(100m)减少风滩N(kw)0.2840.0200E（亿kw.h）0.2280009．沅水尾闾洪灾情况、洞庭湖分分蓄洪提防基本情况见表1.5、1.6；表1.5沅水尾闾历年洪灾情况年份常德最大流量(m3/s)洪灾情况192724800酉水特大洪水，尾闾未见灾情记载193129700尾闾淹田100万亩，淹死3049人193330400桃源淹田11.4万亩，汉寿受灾11.5万人193529900尾闾淹田93万亩，淹死3430人193820600黔阳淹5万余亩，尾闾未见灾情记载194328600沅陵、桃源灾情较重，常德、汉寿未见灾情记载194924700尾闾淹田71万亩，受灾35万人195424300尾闾淹田73万亩196927300尾闾淹田4.7万亩，受灾3.3万人197022900安江一带灾情严重，尾闾无灾78 沅水五强溪水库水利计算197421700表1.6历年较大洪水所需拦洪量单位：108m3年份193319311935194919691954197019741938拦洪量15.213.610.1待算6.56.22.311.380.3110．五强溪水库入库设计洪水过程线（见附表二）；11．水库最大吹程15km，设计风速12km/s；12．各方案泄洪建筑物参数见表1.7；表1.7各方案泄洪建筑物参数表方案泄洪建筑物Ⅰ(120m)Ⅱ(115m)Ⅲ(108m)Ⅳ(100m)溢洪坝孔数10121214坝顶高程(m)1081019484孔口尺寸（宽×高）15×1215×1415×1415×16中孔孔数1110底坎高程(m)8282820孔口尺寸（宽×高）13×813×813×8013．经济预算资料：（1）永久建筑物（含闸门设备）：包括：拦河坝、水道厂房、航道建筑、鱼道建筑、交通建筑、房屋建筑及其他。坝底高程30m。各方案投资估算见表1.8。78 沅水五强溪水库水利计算表1.8各方案投资估算表（枢纽土建）最大坝高（m）10494.587.578.5投资估算（万元）61850563505381721019（2）机电设备各方案投资估算见表1.9。表1.9各方案投资估算表（机电设备）装机容量（万瓦）17515011092机电投资估算（万元）28805279812580818190（3）各方案的临时工程、其他工程和费用（包括施工机械、其他费用）、预备费用各方案投资估算见表1.10。表1.10各方案投资估算表（其它费用）方案Ⅰ(120m)Ⅱ(115m)Ⅲ(108m)Ⅳ(100m)投资（万元）71333658166285456028（4）水库补偿（移民及淹没补偿）各方案投资估算见表1.11。表1.11各方案投资估算表（补偿费用）方案Ⅰ(120m)Ⅱ(115m)Ⅲ(108m)Ⅳ(100m)补偿费（万元）8000057093385472498914．泥沙资料坝址多年平均含沙量0.258kg/m378 沅水五强溪水库水利计算，多年平均输沙率513kg/s，风滩建库后，五强溪坝址多年含沙量0.19kg/m3，年淤积669万m3。78 沅水五强溪水库水利计算2兴利计算沅水五强溪水电站水库正常蓄水位共有120m、115m、108m、100m四个方案，本次设计将对这四个方案进行比较，并选定最优方案。2.1基本资料整理设计原始资料给定的流量是坝址断面历年平均流量，考虑工程实际，现对其平均流量（附表一）数据进行处理：扣除灌溉和船闸用水。灌溉用水按5月下旬至9月下旬的灌溉季节每月扣除35m3/s（5月扣除11.7m3/s，七、八月扣除35m3/s，9月扣除22.3m3/s）；船闸运行用水按每月10m3/s的流量扣除，从而得到新的年平均发电流量表（附表三）。2.2死水位的确定死水位影响因素比较复杂，需考虑保证水库灌溉要求、满足泥沙淤积要求、保证水电站最低水头要求以及航运、养殖等其它要求。本次设计对死水位的确定采用简化处理的办法，主要考虑水库的使用寿命及泥沙淤积；灌溉、航运、养殖及旅游等综合利用要求；水轮机最小水头的限制三个因素。各方案分述如下：2.2.1正常蓄水位120m方案（方案一）1．水库的使用寿命及泥沙淤积使用寿命T按50年计，年淤积量V年为669万m3V淤=V年×T=669×50=33450万m378 沅水五强溪水库水利计算查库容～水位曲线表，确定水库在使用年限内满足防淤要求的死水位Z1=76.20m；2．灌溉、航运、养殖及旅游等综合利用要求，水库削落的最低水位不得小于Z2=82.00m;3．水轮机最小水头的限制，水库削落深度不大于水电站最大水头的35%。（1）任意假定最小发电流量q（0），并相应下游Z下（0）。最小发电流量取q（0）=800m3/s，查表得下游水位Z下（0）=50.05m。（2）极限削落深度hm=（Z正－Z下（0））×35%=(120－50.05)×35%=24.48m死水位：Z3=Z正－hm=120－24.48=95.52m（3）Z死(0)=max(Z1，Z2，Z3)=max(76.80，82.00，95.52)=95.52m；（4）根据Z3(0)长系列计算各年供水期调节流量qp=799.28m3/s，并满足|q（0）－qp|=0.72m3/s＜ε=1m3/s，则Z死=Z死（0）=95.52m。即死水位为95.52m，相应死库容14.002亿m3。2.2.2正常蓄水位115m方案（方案二）1．水库的使用寿命及泥沙淤积水库在使用年限内满足防淤要求的死水位Z1=76.20m；2．灌溉、航运、养殖及旅游等综合利用要求，水库削落的最低水位不得小于Z2=82.00m;3．水轮机最小水头的限制，水库削落深度不大于水电站最大水头的35%。（1）任意假定最小发电流量q（0），并相应下游Z下（0）。78 沅水五强溪水库水利计算最小发电流量取q（0）=733m3/s，查表得下游水位Z下（0）=49.88m。（2）极限削落深度hm=（Z正－Z下（0））×35%=(115－49.88)×35%=22.79m死水位：Z3=Z正－hm=115－22.79=92.21m（3）Z死(0)=max(Z1，Z2，Z3)=max(76.80，82.00，92.21)=92.21m；（4）根据Z3(0)长系列计算各年供水期调节流量qp=733.08m3/s，并满足|q（0）－qp|=0.08m3/s＜ε=1m3/s，则Z死=Z死（0）=92.21m。即死水位为92.21m，相应死库容11.353亿m3。2.2.3正常蓄水位108m方案（方案三）1．水库的使用寿命及泥沙淤积水库在使用年限内满足防淤要求的死水位Z1=76.20m；2．灌溉、航运、养殖及旅游等综合利用要求，水库削落的最低水位不得小于Z2=82.00m;3．水轮机最小水头的限制，水库削落深度不大于水电站最大水头的35%。（1）任意假定最小发电流量q（0），并相应下游Z下（0）。最小发电流量取q（0）=644m3/s，查表得下游水位Z下（0）=49.70m。（3）极限削落深度hm=（Z正－Z下（0））×35%=(108－49.70)×35%=20.41m死水位：Z3=Z正－hm=108－20.41=87.59m（3）Z死(0)=max(Z1，Z2，Z3)=max(76.80，82.00，87.59)=87.59m；（4）根据Z3(0)长系列计算各年供水期调节流量qp=644.32m378 沅水五强溪水库水利计算/s，并满足|q（0）－qp|=0.32m3/s＜ε=1m3/s，则Z死=Z死（0）=87.59m。即死水位为87.59m，相应死库容8.346亿m3。2.2.4正常蓄水位100m方案（方案四）1．水库的使用寿命及泥沙淤积水库在使用年限内满足防淤要求的死水位Z1=76.20m；2．灌溉、航运、养殖及旅游等综合利用要求，水库削落的最低水位不得小于Z2=82.00m;3．水轮机最小水头的限制，水库削落深度不大于水电站最大水头的35%。（1）任意假定最小发电流量q（0），并相应下游Z下（0）。最小发电流量取q（0）=568m3/s，查表得下游水位Z下（0）=49.55m。（2）极限削落深度hm=（Z正－Z下（0））×35%=(100－49.55)×35%=17.66m死水位：Z3=Z正－hm=100－17.66=82.34m（3）Z死(0)=max(Z1，Z2，Z3)=max(76.80，82.00，82.34)=82.34m；（4）根据Z3(0)长系列计算各年供水期调节流量qp=567.79m3/s，并满足|q（0）－qp|=0.21m3/s＜ε=1m3/s，则Z死=Z死（0）=82.34m。即死水位为82.34m，相应死库容5.55亿m3。2.3保证出力计算本次设计要求长系列等出力操作；用试算法逐年求解以下方程组：78 沅水五强溪水库水利计算Vt=Vt-1+(Qt－qt)×ΔtNp=K×qt×HtV0=V死Vt-I,Vt——t时段初、末水库蓄水量；Qt——t时段平均入库流量（新系列）；qt——t时段平均发电流量；Ht——t时段平均水头；Vt——供水期末水库蓄水量。2.3.1计算方法对某一特定年份求解步骤如下：1．设Np=N(0)（1）设qt=q(0)(qt为t时段发电流量)；（2）Vt=Vt-1+(Qt－qt)Δt(当Vt＞V兴+V死，取Vt=V兴+V死)（3）由V均=(Vt+Vt-1)/2查水位库容曲线得到Z上；由qt查坝址下游水位流量关系曲线得到Z下；（4）Nt=Kqt(Z上－Z下)（5）若|Nt－Np|＜ε1,转下时段；否则qt=q(0)+(tNp－Nt)/[K(Z上－Z下)]，转（2）步骤计算。2．求年最小水库蓄水量Ve;3．若|Ve－V死|＜ε2，转下一年；否则Np=N(0)+K[(Z正+Z死)/2－Z下](Z死－Ve)/T供转（1）步骤计算。求出各年的供水期平均出力后，据设计保证率可求出Np。78 沅水五强溪水库水利计算2.3.2计算结果本次设计采用程序计算，各方案具体参数及结果如下：1．方案一：正常库容57.349亿m3，死库容14.002亿m3，兴利库容43.347亿m3。设计保证出力Np=41.33万kw。2．方案二：正常库容43.357亿m3，死库容11.353亿m3，兴利库容32.004亿m3。设计保证出力Np=35.34万kw。3．方案三：正常库容29.424亿m3，死库容8.346亿m3，兴利库容21.078亿m3。设计保证出力Np=27.84万kw。4．方案四：正常库容18.490亿m3，死库容5.55亿m3，兴利库容12.94亿m3。设计保证出力Np=21.46万kw。2.4水电站必需容量选择必需容量包括工作容量与备用容量两部分。2.4.1工作容量计算本设计缺少电力平衡的资料，采用经验方法确定工作容量如下（按方案一计算）：1．保证出力中部分担任航运基荷：N工基=10（万kw）2．N峰为担任峰荷工作容量N峰=Np－N工基=41.33－10=31.33（万kw）3．按以下关系确定峰荷工作容量N工峰=3.08N峰＋7=103.50（万kw）4．水电站工作容量78 沅水五强溪水库水利计算N工=N工峰＋N工基=103.50＋10=113.50（万kw）2.4.2备用容量计算本设计电站担任系统负荷用及事故备用容量，各方案取值见表2.1。表2.1各方案备用容量表方案Ⅰ120mⅡ115mⅢ108mⅣ100mN备（万kw）302520152.4.3电站必需工作容量经计算，沅水五强溪水电站各方案必需工作容量见表2.2。表2.2各方案必需工作容量表方案Ⅰ120mⅡ115mⅢ108mⅣ100mN工基（万kw）10101010N工峰（万kw）103.5085.0561.9542.30N工（万kw）113.5095.0571.9552.30N备（万kw）30252015N必需（万kw）143.50120.0591.9567.302.5水电站调度图绘制本次毕业设计要求从兴利要求出发对水电站调度要求作两条线，一条是基本调度线——防破坏线；一条是加大出力辅助线。2.5.1防破坏线78 沅水五强溪水库水利计算防破坏线按下列步骤计算确定。1．择设计保证率范围内的径流系列（新系列）资料。（从原始系统中剔除来水小于设计枯水年的年份）2．年从供水期水期末开始，按Np等出力逆时序操作，求得各年迟蓄方案水库蓄水量过程线。具体求解方程组：Vt-1=Vt－(Qt－qt)ΔtNp=KqtHt式中符号意义同前。其具体求解流程如下：（1）设qt=q(0)；（2）Vt-1=Vt－(Qt－qt)Δt(Vt起始值为V死)（当Vt-1＜V死，取Vt-1=V死）；（3）V均=(Vt+Vt-1)/2查水库水位库容曲线得到Z下；（4）Nt=Kqt(Z上－Z下)；（5）若|Nt－Np|＜ε，转前时段，否则qt=q(0)+(Np－Nt)/〔K(Z上－Z下)〕，转（２）步骤3．将各年迟蓄方案水库蓄水量过程线点在一张图，并取其外包线，即为防破坏线。此78 沅水五强溪水库水利计算外包线，实际上是各条蓄水量过程线的同时纵坐标最大值，在具体操作时，可在计算机算完第（２）步后，直接给出外包线各点坐标，当然最后采用值，还应输出结果作适当分析修正，使防破坏线更可靠。经采用程序计算，各方案防破坏线的结果见表2.3。表2.3各方案防破坏线计算结果表月份水库蓄水量（m3/s.月）方案一方案二方案三方案四3716.68541.85331.42218.224553.31442.91321.63218.225767.66592.51373.99218.2261243.28960.96633.81358.672181.741630.32988.87523.4182059.141555.93973.69565.5792183.441726.51156.45662.73102029.041631.081141.32703.961118301440.75974.09639.54121587.241264.13863.24545.3411260.191005.4689.5432.9321015.32824.85599.12406.143553.31442.91321.63218.222.5.2防洪限制水位确定78 沅水五强溪水库水利计算防洪限制水位是体现防洪与兴利相互结合的重要参数。选择恰当，可在不影响兴利可靠性前提下，降低大坝高度，节省投资。本设计以获得最大结合库容为原则选择。根据五强溪水电站洪水资料分析，该库洪水最迟发生在７月底，８月初：故防洪限制水位取值为７月底，８月初防洪线上的坐标值。经计算并查水库水位库容曲线，各方案防洪限制水位和相应库容分别为：方案一：防洪限制水位为120.00m，库容为57.349亿m3；方案二：防洪限制水位为115.00m，库容为43.67亿m3；方案三：防洪限制水位为105.99m，库容为26.49亿m3；方案四：防洪限制水位为95.67m，库容为14.02亿m3。防洪限制水位作为调洪演算的起调水位，并据此可求出结合库容。2.5.3加大出力辅助线的绘制在防破坏图中，在汛期防洪限制水位与破坏线间，为加大出力区，但加大出力范围较大，为减少操作的任意性，在该区中增加三条辅助线，采用简化的方法确定该组辅助线。具体如下：Zit=Z死+（Z防限－Z死）×i/4式中：Zit为第i条加大出力线t时刻的坐标。经计算各方案结果见表2.4。表2.4各方案加大出力辅助线参数表正常水位120m115m108m100m死水位（m）95.5292.2187.5982.34汛限水位（m）120.00115.00105.9995.67Z1t（m）101.6497.9292.1985.67Z2t（m）107.76103.6396.7989.0178 沅水五强溪水库水利计算Z3t（m）113.88109.33101.3992.34V1t（亿m3）20.4516.2911.257.11V2t（亿m3）28.9423.0415.199.05V3t（亿m3）41.4832.1420.1211.36由表2.4绘出加大出力辅助线。三条辅助线将加大出力值计算公式如下：Ni=Np+（Ny－Np）÷4×i各方案计算结果见表2.5。表2.5各方案加大出值计算表正常水位120m115m108m100mNp(万kw)41.3335.3427.8421.46Ny(万kw)143.50126.05120.1267.30N1(万kw)66.8758.0250.9132.92N2(万kw)92.4280.7073.9844.38N3(万kw)117.96103.3797.0555.842.6重复容量选择与多年平均电能计算2.6.1重复容量选择水电站在洪水期往往会产生大量弃水，为了利用弃水增发季节性电能，节省火电站的燃料消耗，增加一部分装机容量，由于它不能替代火电站的工作容量，因而称它为重复容量。本次设计N重采用经济利用小时数h经济=2500h。补充千瓦利用小时数计算是确定重复容量的关键，但其核心是计算不同重复容量的多年平均电能，多年平均电能的计算与调度图或调度规划有关，本次设计调度按以下规则操作：78 沅水五强溪水库水利计算1．当时段初水位位于防破坏线内时，时段出力Nt=Np。2．汛期时段初水位位于加大出力区时，按加大出力线工作，即Nt=Ni。3．段初水位在防破坏线以上时，使时段水位尽可能向防破坏线上靠，同时要考虑装机容量的限制。4．当满装机发电，且水位超过Z防限或Z正时，才允许弃水。现以方案一计算重复容量的选择及多年平均电能计算。假设重复容量N重等于0、5、10、15、20万kw时，分别计算新系列多年平均发电量E及重复容量年利用小时数h，计算结果见表2.6。因重复容量年利用小时数h均小于h经济=2500h，故方案一重复容量为0。表2.6重复容量计算表（方案一）必需容量(万kw)重复容量(万kw)装机容量(万kw)多年平均发电量(亿kw.h)年发电量差值(亿kw.h)△E利用小时数(h)143.500143.5075.24143.505148.5076.241.002000143.5010153.5077.251.012020143.5015158.5078.311.062120143.5020163.5079.210.901800其余三个方案的多年平均发电量E及重复容量年利用小时数h计算结果见表2.7~表2.9。从表2.9可以看出，方案四的重复容量年利用小时数h均小于h经济=2500h，故方案四重复容量为0。根据表2.7和表2.8中计算结果，点绘N重～h利曲线，再根据h经济78 沅水五强溪水库水利计算=2500h确定方案二N重=6万kw；方案三N重=28.17万kw。表2.7重复容量计算表（方案二）必需容量(万kw)重复容量(万kw)装机容量(万kw)多年平均发电量(亿kw.h)年发电量差值(亿kw.h)△E利用小时数(h)120.050120.0569.15120.052122.0569.610.462300120.054124.0570.120.512550120.056126.0570.620.502500120.058128.0571.040.422100表2.8重复容量计算表（方案三）必需容量(万kw)重复容量(万kw)装机容量(万kw)多年平均发电量(亿kw.h)年发电量差值(亿kw.h)△E利用小时数(h)91.95091.9558.6791.9510101.9562.073.40340091.9520111.9566.354.28428091.9530121.9568.632.28228091.9540131.9570.642.012010表2.9重复容量计算表（方案四）必需容量(万kw)重复容量(万kw)装机容量(万kw)多年平均发电量(亿kw.h)年发电量差值(亿kw.h)△E利用小时数(h)67.30067.3034.3767.30269.3034.810.44220067.30471.3035.230.42210078 沅水五强溪水库水利计算67.30673.3035.630.40200067.30875.3036.010.3819002.6.2装机容量的确定装机容量由必须容量和重复容量确定，但由于回水对上游风滩电站的影响，应在方案一和方案二中扣除风滩电站的多年平均减少电能。各方案的装机容量分别为：方案一：Ny=N必+N重=143.50+0=143.50万kw；方案二：Ny=N必+N重=120.05+6=126.05万kw；方案三：Ny=N必+N重=91.95+28.17=120.12万kw；方案四：Ny=N必+N重=67.30+0=67.30万kw。2.6.3多年平均电能计算利用上述计算结果点绘Ny（Ny=N必+N重）～E的关系图，查得各方案多年平均发电量。方案一：E=75.24－0.228=75.012亿kw.h；方案二：E=70.62－0=70.62亿kw.h；方案三：E=68.29亿kw.h；方案四：E=34.37亿kw.h；78 沅水五强溪水库水利计算3防洪计算3.1水库调洪计算五强溪水库工程等别为一等，按P=0.1%洪水标准设计、P=0.01%洪水标准校核。水库下游防洪标准为P=5%，安全泄洪量q安=20000m3/s。本次设计防洪计算的任务包括上述三种洪水标准的调洪计算。利用五强溪水库入库典型洪水，调洪计算采用多级调节方法，具体的调洪规则如下：1．起调水位为汛前限制水位。2．当水库洪水流量小于汛前限制水位相应的下泄能力，且小于安全泄量时，控制闸门，让泄流量等于来水量水库水位维持在汛期水位不变。3．当水库入流量超过汛前限制水位相应的下泄能力，而小于下游安全泄量时，打开闸门自由泄流，水库水位上升，下泄量随之增大。4．当自由泄流量超过安全泄量时，控制qt=q安，直至调节计算结束，所得最高水位为防洪高水位。5．当水库水位不及防洪高水位时，控制qt=q安，当水库水位升高至防洪高水位时，闸门全开，自由泄流，得调洪后的最高水位。溢洪设备的选择本身是一个经济问题，它是权衡上下游洪灾损失的重要参数，而且泄洪设备还受材料最大应力强度及闸门结构限制、下游岩基状况及消能设备情况的影响。自由泄流时采用公式：Q=1.77nBH3/2；78 沅水五强溪水库水利计算孔口出流是采用公式：Q=nωμ(2gH)1/2；μ=0.99－0.53a/H对于千年一遇洪水调节计算得设计洪水水位及相应最大下泄流量，对万年一遇洪水进行调节计算得校核水位及相应最大下泄流量，并根据求得的校核洪水位，确定总库容。在调洪计算过程中，对闸门控制泄流情形，利用水量平衡方程式推求求得，但对于自由泄流情形则需求解隐式方程组。Vt=Vt－1+[(Qt+Qt－1)/2－(qt+qt－1)/2]×Δtq=f(v)本次设计按如下步骤试算求解：①、假定qt=q(0)；②、Vt=Vt－1+[(Qt+Qt－1)/2－(qt+qt－1)/2]×Δt；③、由Vt查q=f(v)曲线得相应下泄流量q(1)；④、若|q(0)－q(1)|<ε，转下时段，否则假定q(0)=q(1)重新进行计算。⑤、确定防洪高水位、设计洪水位及校核洪水位，确定相应库容。各方案水库调洪计算结果见表3.1。各方案水库调洪计算详细结果见附表。78 沅水五强溪水库水利计算表3.1水库各方案调洪计算成果表项目单位方案一方案二方案三方案四正常蓄水位m120115108100正常库容亿m357.34943.35729.42418.490汛限水位m120115105.9995.67汛限库容亿m357.34943.35726.4914.02死水位m95.5292.2187.5982.34死库容亿m314.00211.3538.3465.550防洪高水位m122.40115.89108.90100.07防洪库容亿m37.5612.7534.8344.549设计洪水位m131.74124.41118.81109.41校核洪水位m135.29128.37122.51112.78调洪库容亿m365.45144.31738.78524.913总库容亿m3122.8087.67465.27538.9333.2坝顶高程的确定坝顶高程计算公式如下：坝顶高程1=设计洪水+风浪高+安全超高1坝顶高程2=校核洪水+风浪高2+安全超高2坝顶高程=max｛坝顶高程1，坝顶高程2｝风浪高的计算公式；Δh=0.0208V5/4D1/3式中V为风速，以m/s计，设计风速12m/s，校核洪水时风速乘以0.8；D为吹程，为15km计。安全超高由规范据坝质、坝型而规定（0.5～1.0m）。设计洪水时取0.7m，校核洪水时取0.5m。78 沅水五强溪水库水利计算经计算：Δh设计=1.15m；Δh校核=0.87m。则各方案坝顶高程为：方案一：坝顶高程1=133.59m；坝顶高程2=136.66m。坝顶高程=max｛坝顶高程1，坝顶高程2｝=136.66m。方案二：坝顶高程1=126.26m；坝顶高程2=129.74m。坝顶高程=max｛坝顶高程1，坝顶高程2｝=129.74m。方案三：坝顶高程1=120.66m；坝顶高程2=123.88m。坝顶高程=max｛坝顶高程1，坝顶高程2｝=123.88m。方案四：坝顶高程1=111.26m；坝顶高程2=114.15m。坝顶高程=max｛坝顶高程1，坝顶高程2｝=114.15m。五强溪水电站各项水利指标见表3.2。78 沅水五强溪水库水利计算表3.2水利指标成果统计表序号项目单位指标方案一方案二方案三方案四1正常高水位m1201151081002设计洪水位m131.74124.41118.81109.413校核洪水位m135.29128.37122.51112.784死水位m95.5292.2187.5982.345防洪限制水位m120115105.9995.676防洪高水位m122.40115.89108.90100.077总库容108m3122.8087.67465.27538.9338兴利库容108m343.34732.00421.07812.949防洪库容108m37.5612.7534.8344.54910结合库容108m3002.9344.4711设计洪水最大泄流量m3/s3557440732439934920512校核洪水最大泄流量m3/s4294050267532905900413保证出力104kw41.3335.3427.8421.4614工作容量104kw113.5095.0571.9552.3015备用容量104kw3025201516重复容量104kw0628.17017重复容量年利用小时h025002500018径流利用系数19装机容量104kw143.50126.05120.1267.3020多年平均发电量108kw.h75.01270.6268.2934.3721库容系数0.0670.0490.0320.02022调节系数78 沅水五强溪水库水利计算4经济计算投资、运行费、效益是进行经济分析的三大主要经济指标。经济建设追求的目标是净经济效益最大化。当不同工程方案的效益相同时，该目标等价于费用最小。根据“电力工程经济分析条例”规定，水电工程的经济比较采用年费用最小法，即在同时满足向电网提供的电力、电量要求和其它综合效益的前提下，所选最优方案的投资、运行费的总费用为最小。由于不同工程规模生产电力、电量是不同的，为满足方案的可行性，必需选择最优等效代替方案，本设计选用火电站作为代替措施。本次毕业设计要求考虑资金的时间价值，采用折现率r0=0.1；对代替火电站使用寿命与水电站不一样长，采用等额重置处理。本工程计算资金流程是进行经济分析的主要内容，以年费用最小为经济比较准则，通常以效益最大方案为基准，效益最大的方案只需计算本方案本身的投资与运行费；而对其它效益较小的方案，不仅要计算本方案本身的投资与运行费，而且要计算等效代替措施的投资和运行费。4.1方案一工程费用4.1.1工程投资本工程最大坝高106.66m，永久建筑物投资估算63388万元；装机容量143.50万kw，机电设备投资估算27628万元；临时工程、其它工程和费用（包括施工机械、其它费用）、预备费用71333万元，合计162349万元。78 沅水五强溪水库水利计算永久性建筑物、机电及临时工程、预备费用等的总和称为总投资，总投资的逐年分配比例见表4.1。表4.1总投资的逐年分配表（方案一）年份1234567891011合计投资比例0.1270.120.0810.1080.070.1130.1450.1150.0970.0210.003100%投资额（万元）20618.3219481.8813150.2717533.6911364.4318345.4423540.6118670.1415747.853409.33487.05162349设备回收额（万元）0.000.000.000.000.000.000.000.000.000.00-33119.2-33119.2小计（万元）20618.3219481.8813150.2717533.6911364.4318345.4423540.6118670.1415747.853409.33-32632.15129229.8工程投资为每年年初支出，设备回收残值为年末收回。4.1.2水库补偿投资水库淹没及移民补偿投资80000万元。水库补偿投资于第一台机组发电前一年结束，施工第二年开始移民，补偿投资总值逐年分配见表4.2。补偿投资为每年年初支出。表4.2补偿投资总值逐年分配表（方案一）年份2345678合计分配比例0.1250.1250.1670.1630.1630.1290.128100%补偿投资额（万元）10000100001336013040130401032010240800004.1.3工程年运行费工程正常年运行费包括电站运行费、大修费、水库补偿提成三个部分。运行费为年末投入。1．水电站运行费u1u1=运行费定额×装机容量=2元/kw×143.50×104kw=287万元。78 沅水五强溪水库水利计算2．大修费u2大修费包括水工建筑物、房屋交通工程和机电设备三部分组成。①水工建筑物大修费u21查毕业设计提供的基础资料得u21=362万元。②房屋、交通工程大修费u22查毕业设计提供的基础资料得u22=17.7万元。③机电设备大修费u23查毕业设计提供的基础资料得u23=471.2万元。u2=u21+u22+u23=362+17.7+471.2=850.9万元。3．水库补偿提成费u3查毕业设计提供的基础资料得u3=1328万元。则工程年运行费u=u1+u2+u3=287+850.9+1328=2465.9万元。4.1.4水电站初期运行费本工程初始运行期为三年，在第十一年末进入正常运行期，初期运行阶段各年的发电量为正常运行时发电量的比例及初期运行费见表4.3。表4.3初期运行阶段各年运行费表年份9101112Et/E020%70%90%100%Et（108kw.h）15.00252.50867.51175.012运行费（万元）493.21726.12219.32465.94.2其它方案工程费用78 沅水五强溪水库水利计算4.2.1工程投资方案二：工程最大坝高99.74m，永久建筑物投资估算59386万元；装机容量126.05万kw，机电设备投资估算26680万元；临时工程、其它工程和费用（包括施工机械、其它费用）、预备费用65816万元，合计151882万元。方案三：工程最大坝高93.88m，永久建筑物投资估算56131万元；装机容量120.12万kw，机电设备投资估算26358万元；临时工程、其它工程和费用（包括施工机械、其它费用）、预备费用62854万元，合计145343万元。方案四：工程最大坝高84.15m，永久建筑物投资估算41609万元；装机容量67.3万kw，机电设备投资估算7736万元；临时工程、其它工程和费用（包括施工机械、其它费用）、预备费用56028万元，合计105373万元。永久性建筑物、机电及临时工程、预备费用等的总和称为总投资，总投资的逐年分配比例见表4.4。工程投资为每年年初支出，设备回收残值为年末收回。4.2.2水库补偿投资方案二、三、四水库淹没及移民补偿投资分别为57093万元、38547万元、24989万元。水库补偿投资于第一台机组发电前一年结束，施工第二年开始移民，补偿投资总值逐年分配见表4.5。补偿投资为每年年初支出。表4.4总投资的逐年分配表（其它方案）78 沅水五强溪水库水利计算年份234567891011合计方案二（万元）投资比例0.1250.1180.0850.1440.0540.1210.1330.1440.0530.023100%投资额18985179221291021871820218378202002187180503493151882设备回收额000000000-31288-31288小计1898517922129102187182021837820200218718050-27794120594方案三（万元）投资比例0.1280.1180.0910.130.0720.1240.1210.1070.0550.054100%投资额186041715013226188951046518023175871555279947849145343设备回收额000000000-30377-30377小计18604171501322618895104651802317587155527994-22528114966方案四（万元）投资比例0.1310.1250.0960.1360.0730.1330.1480.1020.0450.011100%投资额13804131721011614331769214015155951074847421159105373设备回收额000000000-23182-23182小计1380413172101161433176921401515595107484742-2202382191表4.5补偿投资总值逐年分配表（其它方案）年份345678合计方案二（万元）分配比例0.050.100.200.250.200.20100%补偿投资额2854.75709.311418.614273.311418.611418.657093方案三（万元）分配比例0.050.100.200.250.200.20100%补偿投资额1927.43854.77709.49636.87709.47709.438547方案四（万元）分配比例0.050.100.200.250.200.20100%补偿投资额1249.52498.94997.86247.34997.84997.8249894.2.3工程年运行费78 沅水五强溪水库水利计算工程正常年运行费包括电站运行费、大修费、水库补偿提成三个部分。运行费为年末投入。1．水电站运行费u1方案二：u1=运行费定额×装机容量=2元/kw×126.05×104kw=252.1万元。方案三：u1=运行费定额×装机容量=2元/kw×120.12×104kw=240.2万元。方案四：u1=运行费定额×装机容量=2元/kw×67.3×104kw=134.6万元。2．大修费u2大修费包括水工建筑物、房屋交通工程和机电设备三部分组成。①水工建筑物大修费u21查毕业设计提供的基础资料得：方案二：u21=337.5万元；方案三：u21=317.9万元；方案四：u21=298.0万元；②房屋、交通工程大修费u22查毕业设计提供的基础资料得：方案二：u22=17.5万元。方案三：u22=17.4万元。方案四：u22=17.1万元。③机电设备大修费u2378 沅水五强溪水库水利计算查毕业设计提供的基础资料得：方案二：u23=455.4万元。方案三：u23=450.1万元。方案四：u23=239.1万元。则各方案大修费分别为：方案二：u2=u21+u22+u23=337.5+17.5+455.4=810.4万元。方案三：u2=u21+u22+u23=317.9+17.4+450.1=785.4万元。方案四：u2=u21+u22+u23=298.0+17.1+239.1=554.2万元。3．水库补偿提成费u3查毕业设计提供的基础资料得：方案二：u3=974.7万元。方案三：u3=647.6万元。方案四：u3=442.3万元。则工程年运行费分别为：方案二：u=u1+u2+u3=252.1+810.4+974.7=2037.2万元。方案三：u=u1+u2+u3=240.2+785.4+647.6=1673.2万元。方案四：u=u1+u2+u3=134.6+554.2+442.3=1131.1万元。4.2.4水电站初期运行费本工程初始运行期为三年，在第十一年末进入正常运行期，初期运行阶段各年的发电量为正常运行时发电量的比例及初期运行费见表4.6。表4.6初期运行阶段各年运行费表年份910111278 沅水五强溪水库水利计算Et/E020%70%90%100%方案二Et（108kw.h）14.1249.4363.5670.62运行费（万元）407.41426.01833.52037.2方案三Et（108kw.h）13.6647.8061.4668.29运行费（万元）334.61171.21505.91673.2方案四Et（108kw.h）6.8724.0630.9334.37运行费（万元）226.2791.81018.01131.14.2.5替代火电站方案投资以方案一为基准，其它各方案与方案一发电效益之差需要由系统中修建火电站来替代。由于火电站厂用电较水电站大，故替代电站容量差值为必需容量差值的1.1倍。替代电站的发电量差值为五强溪电站多年平均电能差值的1.05倍（电能差值应考虑各方案对风滩电站的影响）。替代电站的经济指标如下：火电站单位千瓦投资750元/kw；煤矿投资0.07元/kw.h；替代方案的投资除兴建必要规模的火电站本身投资外，还应计划与之配套的煤矿投资。方案i与方案一必需容量差值为ΔNi；多年平均电能的差值为ΔE，则替代电站的投资为：1．方案二ΔN2=(143.50－0.284)－(120.05－0.02)=23.186万kw；ΔE2=75.012－70.62=4.392亿kw.h=43920万kw.h；78 沅水五强溪水库水利计算K电2=750×ΔN2×1.1=750×23.186×1.1=19128.5万元；K矿2=ΔE2×1.05×0.07=43920×1.05×0.07=3228.1万元；2．方案三ΔN3=(143.50－0.284)－91.95=51.266万kw；ΔE3=75.012－68.29=6.722亿kw.h=67220万kw.h；K电3=750×ΔN3×1.1=750×51.266×1.1=42294.5万元；K矿3=ΔE3×1.05×0.07=67220×1.05×0.07=4940.7万元；3．方案四ΔN4=(143.50－0.284)－67.3=75.916万kw；ΔE4=75.012－34.37=40.642亿kw.h=406420万kw.h；K电4=750×ΔN4×1.1=750×75.916×1.1=62630.7万元；K矿4=ΔE4×1.05×0.07=406420×1.05×0.07=29871.9万元；此三个方案替代工程的投资流程见表4.7。4.2.6替代火电站方案年运行费火电站的运行费包括电站运行费和燃料费，电站的运行费按投资的8%计；燃料费按0.02元/kw.h计算。三个方案计算结果见表4.8。4.2.7替代火电站方案初期运行费火电站初期运行费应计算电站与燃料两部分，但由于本设计火电站投资流程不知，因此，只计算各方案燃料费。计算结果见表4.9。表4.7其它方案替代工程投资流程表方案年份6789101178 沅水五强溪水库水利计算方案二（万元）替代电站　　0.550.400.030.02替代电站投资　　10520.687651.40573.86382.57煤矿0.160.340.350.100.05　煤矿投资516.501097.551129.84322.81161.41　方案三（万元）替代电站　　0.550.400.030.02替代电站投资　　23261.9816917.801268.84845.89煤矿0.160.340.350.100.05　煤矿投资790.511679.841729.25494.07247.04　方案四（万元）替代电站　　0.550.400.030.02替代电站投资　　34446.8925052.281878.921252.61煤矿0.160.340.350.100.05　煤矿投资4779.5010156.4510455.172987.191493.60　表4.8其它方案替代工程年运行费计算表方案运行费（万元）燃料费（万元）合计（万元）方案二1530.28878.402408.68方案三3383.561344.404727.96方案四5010.4568128.4013138.86表4.9其它方案替代工程初期运行费计算表年份9101112Et/E020%70%90%100%方案二（万元）175.7614.9790.6878.4方案三（万元）268.9941.11210.01344.4方案四（万元）1625.75689.97315.68128.44.3防洪效益78 沅水五强溪水库水利计算4.3.1方案一防洪效益由于五强溪水电站是一个综合利用水电站，防洪效益十分显著。本次设计将防洪效益作为“负费用”计入资金流程中，并按多年平均效益计算。沅水流域历史较大洪水所需拦洪量及相应频率见表4.10。表4.10流域历史较大洪水所需拦洪量表年份193319311935194919691954197019741938拦洪量(亿m3)15.213.610.1待算6.56.22.311.380.31频率(%)1.753.515.267.08.7710.5312.2814.0415.79防洪效益的计算方法如下：（1）作历史洪水的拦洪量频率曲线；（2）将建库前频率曲线下移V防；（3）将图中的阴影面积（减少的拦洪量）均推到100%中得多年平均减少的水库拦洪量Δw；（4）计算耕地淹没面积；F=5+1.132×Δw=5+1.132×0.98=6.11万亩（5）计算防洪效益B=1000F=1000×6.11=6110万元。4.3.2其它方案防洪效益由于五强溪水电站是一个综合利用水电站，防洪效益十分显著。本次设计将防洪效益作为“负费用”计入资金流程中，并按多年平均效益计算。78 沅水五强溪水库水利计算各方案防洪效益计算结果见表4.11。表4.11各方案防洪效益计算成果表方案ΔW（亿m3）F（万亩）B（万元）方案二0.7395.8375837方案三0.8435.9545954方案四0.8295.93859384.4经济比较各方案经济计算见表4.12~表4.15。由表4.12~表4.15中可以看出，方案一的年费用为42100万元，方案二的年费用为35977万元，方案三的年费用为35012万元，方案四的年费用为40625万元，四个方案中以方案三为最经济，所以，本次设计推荐方案三为最优方案，即正常蓄水位108m。最后，衷心感谢河海大学老师的辛勤教育和悉心指导！78 沅水五强溪水库水利计算表4.12方案一经济计算表年份项目1234567891011正常运行永久、机电、临时投资（％）0.1270.120.0810.1080.070.1130.1450.1150.0970.021-0.201永久、机电、临时投资（万元）2061819482131501753411364183452354118670157483409-32632水库补偿投资（％）0.1250.1250.1670.1630.1630.1290.128水库补偿投资（万元）10000100001336013040130401032010240替代火电站投资（％）替代火电站投资（万元）煤矿额外投资（％）煤矿额外投资（万元）水电站初期运行（%）207090水电站初期运行（万元）493172622192466火电站初期运行费（％）　　　　　　　　　　火电站初期运行费（万元）　　　　　　　　　　火电站投资（万元）　　　　　　　　　　下游防洪效益（万元）　　　　　　　　　-6110总计（万元）2061829482231503089424404313853386128910162415135-30413-3644折算到施工期末（万元）5882676468545876622347557556015453342327216176214-30413　化算到正常运行期年费用（万元）593377135506667947975608550042692180627-3067年费用总计算支出（万元）4535424210078 沅水五强溪水库水利计算表4.13方案二经济计算表年份项目1234567891011正常运行永久、机电、临时投资（％）0.1250.1180.0850.1440.0540.1210.1330.1440.053-0.183永久、机电、临时投资（万元）1898517922129102187182021837820200218718050-27794水库补偿投资（％）0.050.10.20.250.20.2水库补偿投资（万元）2854.75709.311418.614273.311418.611418.6替代火电站投资（％）0.550.40.030.02替代火电站投资（万元）10520.687651.4573.86382.57煤矿额外投资（％）　　　0.160.340.350.10.05煤矿额外投资（万元）　　　　　516.51097.551129.84322.81161.41水电站初期运行（%）　　　　　20%70%90%100%水电站初期运行（万元）　　　　　407.414261833.52037.2火电站初期运行费（％）　　　　　20%70%90%100%火电站初期运行费（万元）　　　　　175.7614.9790.6878.4火电站投资（万元）　　　　　5171098116518557277630072916下游防洪效益（万元）　　　　　-5837总计（万元）　189852077718619332902299230894432693042810826-24787-2921折算到施工期末（万元）　492424899039912648724073149755633504050013100-24787　化算到正常运行期年费用（万元）　496749414025654341085018638940851321-2500年费用总计算支出（万元）3856663597778 沅水五强溪水库水利计算表4.14方案三经济计算表年份项目1234567891011正常运行永久、机电、临时投资（％）0.1280.1180.0910.130.0720.1240.1210.1070.055-0.155永久、机电、临时投资（万元）18604171501322618895104651802317587155527994-22528水库补偿投资（％）0.050.10.20.250.20.2水库补偿投资（万元）1927.43854.77709.49636.87709.47709.4替代火电站投资（％）0.550.40.030.02替代火电站投资（万元）23261.9816917.81268.84845.89煤矿额外投资（％）0.160.340.350.10.05煤矿额外投资（万元）790.511679.841729.25494.07247.04水电站初期运行（%）20%70%90%100%水电站初期运行（万元）334.61171.21505.91673.2火电站初期运行费（％）20%70%90%100%火电站初期运行费（万元）268.9941.112101344.4火电站投资（万元）79116802499118015362835623018下游防洪效益（万元）-5954总计（万元）0186041907717081266042089227412502883356711622-18966-2936折算到施工期末（万元）0482544498436614518443701244148736264467814063-18966　化算到正常运行期年费用（万元）0486745373693522937334453742645061418-1913年费用总计算支出（万元）3762573501278 沅水五强溪水库水利计算表4.15方案四经济计算表年份项目1234567891011正常运行永久、机电、临时投资（％）0.1310.1250.0960.1360.0730.1330.1480.1020.045-0.209永久、机电、临时投资（万元）1380413172101161433176921401515595107484742-22023水库补偿投资（％）0.050.10.20.250.20.2水库补偿投资（万元）1249.52498.94997.86247.34997.84997.8替代火电站投资（％）0.550.40.030.02替代火电站投资（万元）34446.8925052.281878.921252.61煤矿额外投资（％）　　　　　0.160.340.350.10.05煤矿额外投资（万元）　　　　　4779.510156.4510455.172987.191493.6水电站初期运行（%）　　　　　20%70%90%100%水电站初期运行（万元）　　　　　226.2791.810181131.1火电站初期运行费（％）　　　　　20%70%90%100%火电站初期运行费（万元）　　　　　1625.75689.97315.68128.4火电站投资（万元）　　　　　4780101564490229891985495869260下游防洪效益（万元）　　　　　　　　　　　-5938总计（万元）0138041442212615193291871929169654954063914596-124373322折算到施工期末（万元）0358043400527041376663316146977958915409117661-12437　化算到正常运行期年费用（万元）0361134302727379933454738967154561781-1254年费用总计算支出（万元）3698624062578 沅水五强溪水库水利计算附表1~附表2478 沅水五强溪水库水利计算附表1坝址断面历年月平均流量表78 沅水五强溪水库水利计算附表2五强溪水库入库洪水1970年洪水典型《合成流量法》78 沅水五强溪水库水利计算附表3坝址断面扣除灌溉与船闸用水后历年月平均流量表78 沅水五强溪水库水利计算附表4正常蓄水位120m调节流量计算表（方案一）m3/s.月年份供水期初供水期末供水期来水量兴利库容调节流量频率19518164922.51630.131092.137.5195211243124.91630.131188.7628.13195312344454.61630.131521.183.13195410252381.81630.13802.3984.38195593750181630.13949.7368.7519569152186.91630.13763.493.7519579264458.31630.131014.7459.381958111314071630.131012.3862.519598274427.71630.13865.47519609262791.61630.13736.9596.88196171043199.71630.131207.4625196212342545.81630.131043.9846.8819639266461.41630.131348.599.38196411242531.21630.131040.3350196511354997.11630.131325.4512.519668273964.81630.13799.2887.5196712232433.71630.131354.616.25196812343496.31630.131281.6115.63196912343210.61630.131210.1821.88197010365082.71630.131118.834.38197110252879.91630.1390271.88197279321271630.131252.3818.75197310363492.81630.13853.8278.13197411352220.71630.13770.1790.63197582754011630.131004.4565.6319768276590.71630.131174.431.25197712342505.71630.131033.9653.1319788387063.11630.131086.6540.63197910252530.51630.13832.1281.25198011353741.31630.131074.2943.75198181645041630.131022.3556.2578 沅水五强溪水库水利计算附表5正常蓄水位115m调节流量计算表（方案二）m3/s.月年份供水期初供水期末供水期来水量兴利库容调节流量频率19518164922.51283.591034.3537.5195211243124.91283.591102.1225195312344454.61283.591434.553.13195410252381.81283.59733.0887.5195510253201.41283.5989765.6319569152186.91283.59694.193.7519579264458.31283.59956.98501958111314071283.59896.8668.7519598274427.71283.59815.97519609262791.61283.59679.296.88196171043199.71283.591120.8221.8819621331575.81283.59953.1359.3819639266461.41283.591290.836.25196411242531.21283.59953.756.25196512343715.11283.591249.679.3819668163173.21283.59742.884.38196712232433.71283.591239.112.5196812343496.31283.591194.9715.63196912232008.61283.591097.428.13197010142887.41283.591042.7534.38197110252879.91283.59832.771.88197279321271283.591136.8618.75197311352673.11283.59791.3478.13197411352220.71283.59700.8690.63197582754011283.59954.9453.13197612231957.31283.591080.331.25197712342505.71283.59947.3262.5197812342838.71283.591030.5740.63197910252530.51283.59762.8281.25198011242731.61283.591003.843.75198181645041283.59964.646.8878 沅水五强溪水库水利计算附表6正常蓄水位108m调节流量计算表（方案三）m3/s.月年份供水期初供水期末供水期来水量兴利库容调节流量频率19518164922.5834.82959.5525195212232106.6834.82980.4721.8819538921895.6834.821365.213.13195410252381.8834.82643.3287.5195512231572.4834.82802.4165.6319569152186.9834.82604.3490.63195791131660.3834.82831.7156.25195811131407834.82747.2771.8819598274427.7834.82751.7968.7519609152157.4834.82598.4496.88196171043199.7834.821008.6318.7519621331575.8834.82803.5462.5196391021399.8834.821117.319.38196412231611.2834.82815.3459.3819651332534.7834.821123.176.2519668163173.2834.8266884.38196712232433.7834.821089.5112.5196812343496.3834.821082.7815.63196912232008.6834.82947.8131.25197010142887.4834.82930.5537.5197110142136.7834.82742.887519727821079834.82956.9128.13197311352673.1834.82701.5878.13197411241559834.82598.4593.75197512231673.3834.82836.0450197612231957.3834.82930.7134.38197712342505.7834.82835.1353.13197812342838.7834.82918.3840.63197910141849.2834.8267181.25198011242731.6834.82891.643.7519818164504834.82889.846.8878 沅水五强溪水库水利计算附表7正常蓄水位100m调节流量计算表（方案四）m3/s.月年份供水期初供水期末供水期来水量兴利库容调节流量频率19518921099.8485.74792.7734.38195212232106.6485.74864.1121.8819538921895.6485.741190.676.25195410141785.4485.74567.7987.5195512231572.4485.74686.0565.63195610141598.6485.74521.0993.75195791131660.3485.74715.3556.25195811131407485.74630.9175195981031542485.74675.9168.7519609152157.4485.74528.6390.6319617932202.3485.74896.0118.7519621331575.8485.74687.1862.51963661790.7485.741276.443.13196412231611.2485.74698.9859.3819651332534.7485.741006.829.3819668163173.2485.74609.8281.2519671221422485.74953.8715.63196812232478.7485.74988.1512.5196912121065.4485.74775.5746.881970101121155.4485.74820.5728.13197111131400.7485.74628.8178.1319727821079485.74782.3740.63197311352673.1485.74631.7771.88197411241559485.74511.1996.88197512231673.3485.74719.6853.13197612121072.3485.74779.0243.75197712342505.7485.74747.8650197812342838.7485.74831.1125197911131256.9485.74580.8884.38198011242731.6485.74804.3431.25198112121085485.74785.3737.578 沅水五强溪水库水利计算附表8保证出力（方案一）年份保证出力（kw）频率1951552269.637.51952621584.921.881953778217.43.131954413259.287.51955491985.268.751956400946.890.631957500799.165.631958522533.162.51959446322.1751960375784.396.881961612676.3251962541571.246.881963658750.912.51964549477.940.631965705537.86.251966413512.984.381967705275.69.381968658020.615.631969581164.731.251970546736.943.751971468874.271.881972624658.418.751973443848.878.131974385649.193.751975538808.453.131976597524.628.131977534005.856.251978573817.134.381979426484.581.251980539339.6501981530436.659.3878 沅水五强溪水库水利计算附表9保证出力（方案二）年份保证出力（kw）频率1951485188.140.631952535168.918.751953690319.83.131954353375.887.51955443231.162.51956342719.890.631957435621.768.751958436848.365.631959392872.4751960323591.996.881961531521.421.881962452639.759.381963575500.615.631964462561.653.131965611839.96.251966371115.381.251967608777.29.38196857569712.5196950516328.131970491405.337.51971404891.971.881972526402.3251973382242.878.13197432604193.75197547335846.881976502066.931.251977460171.256.251978496196.734.381979365384.784.381980482060.343.751981467800.25078 沅水五强溪水库水利计算附表10保证出力（方案三）年份保证出力（kw）频率1951390895.531.251952412937.2251953568284.63.131954278408.887.51955337219.865.631956262809.590.631957345870.859.381958326163.371.881959321367.5751960260506.793.75196142628321.881962338899.862.51963431780.715.631964348135.656.2519654817266.251966301559.381.251967477472.89.381968468534.812.51969385386.537.5197038826734.381971326679.368.751972426669.318.751973303932.778.131974254277.496.88197535822353.131976383148.843.751977363590.9501978396516.128.131979297155.384.381980384149.540.631981379629.146.8878 沅水五强溪水库水利计算附表11保证出力（方案四）年份保证出力频率1951284272.4501952314098.421.881953427376.16.251954214617.987.51955246595.268.751956195541.893.751957252699.562.5195824283671.88195925276359.381960199195.690.631961339733.318.751962248607.165.631963456101.43.131964258716.856.251965372132.912.51966236869751967351087.315.631968386442.69.381969288906.343.751970311045.3251971236294.778.131972293791.337.51973232673.581.25197418653396.881975265916.753.131976292579.240.631977284875.646.881978304582.228.131979215936.884.381980303271.631.251981299337.634.3878 沅水五强溪水库水利计算附表12防破坏线计算成果表月份水库蓄水量（m3/s.月）方案一方案二方案三方案四3716.68541.85331.42218.224553.31442.91321.63218.225767.66592.51373.99218.2261243.28960.96633.81358.672181.741630.32988.87523.4182059.141555.93973.69565.5792183.441726.51156.45662.73102029.041631.081141.32703.961118301440.75974.09639.54121587.241264.13863.24545.3411260.191005.4689.5432.9321015.32824.85599.12406.143553.31442.91321.63218.2278 沅水五强溪水库水利计算附表13方案一洪水调度计算表(P=5%)节点入库流量下泄流量库蓄水量库蓄水位149804980318606.1120255305530318606.1120369006900318606.1120490909090318606.112051020010200318606.1120699809980318606.1120796109610318606.1120893209320318606.1120990609060318606.11201084508450318606.11201177607760318606.11201293809380318606.1120131320013200318606.1120141550015437.53318637.3120151640015471.23319132.9120.03161760015571.93320611.3120.1171900015752.31323249.2120.22182040016014.86327065.6120.4192210016365.79332125.3120.65202350016801.36338341.7120.94212450017294.17345294121.27222530017821.07352636.3121.62232450018317.15359467.2121.95242310018705.09364756.1122.2252110018946.9368030.1122.36261850019007.86368852.7122.4271640018896.6367350.5122.33281510018672.67364315.9122.18291490018412.63360773.2122.01301400018133.69356950.1121.83311290017806.19352430.1121.61321190017431.13347211.5121.37331100017019.95341435.9121.0934993016573.9335104120.7935884016090.28328156.9120.4636882015607.86321137.8120.123775707570317743.9119.943874907490317743.9119.9478 沅水五强溪水库水利计算附表14方案一洪水调度计算表(P=0.1%)节点入库流量下泄流量库蓄水量库蓄水位11360013600318606.112021510015100318606.112031880015546.13320233.1120.0842480015960.63326279.7120.3752760016648.98336174.9120.8462760017398.22346751.3121.3472720018094.08356405.2121.882680018722.82364996.7122.2192620019278.78372495.9122.57102550019753.49378829.8122.87112490020150.37384077.8123.13122740020591.06389857.1123.4132950021173.88397424.7123.76143110021858.48406208.5124.18153260022617.45415820.5124.64163500023478.46426572.6125.15173870024523.75439421.5125.77184140025758.62454330.3126.48194510027176.35471112.8127.28204900028820.57490164.3128.19215370030726.41511740.8129.22225770032666.82535744.3130.24235300034019.74557750.9130.94244700034984.63573248.8131.44254100035533.23581989.8131.72263140035573.92582636.3131.74273360035386.46579656.1131.64283100035198.6576663.6131.55293040034925.4572301.6131.41303000034639.25567719.3131.26312960034347.05563026.1131.11322910034046.3558179.4130.96332860033734.55553139130.8342810033412.57547915.4130.63352740033075.19542421.6130.46362630032705.71536381.1130.26372490032285.78529485.4130.04382260031585.28521299.8129.6878 沅水五强溪水库水利计算附表15方案一洪水调度计算表(P=0.01%)节点入库流量下泄流量库蓄水量库蓄水位11680016800318606.112021860015628.92320091.7120.0732320015977.89325188.3120.3143200016758.6336420120.8553500017909.84352585.8121.6263470019105.85368928122.473420020215.41383717.3123.1183370021229.16396945.1123.7493290022135.82408562.6124.29103210022925.78418531.8124.77113130023602.73426967.5125.17123490024343.79436094.3125.61133660025245.08447049.8126.13143780026202.73458525.9126.68153970027221.91470563.6127.25164260028369.86483917.7127.89174700029746.07499659.8128.64185050031366.99517853.2129.51195500032924.94538457.3130.33205960034382.16562103.7131.08216530036088.01589318.6131.95226930038019.34619564.9132.91236440039834.81647487.9133.8246710041492.01672574.4134.6254990042592.45689032.2135.13264550042924.91693973.5135.28274080042939.57694191.3135.29283770042699.3690621.8135.18293750042368.02685688.1135.02303220041881.25678413.5134.79313680041405.25671270.3134.56323650041099.61666667.8134.41333620040795.14662070.4134.27343590040491.72657477134.12353560040189.34652886.5133.97363440039859.34647862.2133.81373340039481.55642091.8133.63383120039027.98635137133.4178 沅水五强溪水库水利计算附表16方案二洪水调度计算表(P=5%)节点入库流量下泄流量库蓄水量库蓄水位149804980251930.9115255305530251930.9115369006900251930.9115490909090251930.911551020010200251930.9115699809980251930.9115796109610251930.9115893209320251930.9115990609060251930.91151084508450251930.91151177607760251930.91151293809380251930.9115131320013200251930.9115141550015500251930.9115151640016400251930.9115161760017600251930.9115171900019000251930.9115182040020947.53252130.9115.02192210020986.54252413.8115.04202350021220.97254110.1115.16212450021582.04256708.6115.36222530022016.03259809.6115.59232450022395.78262503.7115.79242310022581.52263815115.89252110022517.77263365.3115.86261850022159.15260826.9115.67271640021542.67256426115.34281510020793.03251008.1114.93291490014900248161.6114.72301400014000248161.6114.72311290012900248161.6114.72321190011900248161.6114.72331100011000248161.6114.723499309930248161.6114.723588408840248161.6114.723688208820248161.6114.723775707570248161.6114.723874907490248161.6114.7278 沅水五强溪水库水利计算附表17方案二洪水调度计算表(P=0.1%)节点入库流量下泄流量库蓄水量库蓄水位11360013600251930.911521510015100251930.911531880018800251930.911542480021251.55254330.9115.1852760021896.38258956.9115.5362760022648.2264284.6115.9372720023281.48268719.8116.2682680023781.37272188.3116.5292620024149.24274723116.71102550024380.39276308.2116.83112490024492.06277072116.89122740024718.51278616.7117132950025230.85282092117.26143110025932.77286810.2117.62153260026760.61292313.5118.03163500027757.17298854.7118.52173870029063307294.6119.15184140030668.17317479119.92194510031952.76329418.5120.52204900033441.52343771.3121.2215370035237.76360781.7122.01225770037329.47380198.1122.94235300039205.52397280.6123.76244700040344.23407505.7124.24254100040732.38410967.4124.41263140040251.35406675.5124.2273360039433.18399333.3123.85283100038685.32392574123.53293040037853.95385004.4123.17303000037062.9377745.9122.82312960036317.56370855.7122.49322910035607.47364243.2122.18332860034923.39357827.8121.87342810034262.37351584.9121.57352740033611.8345397.8121.28362630032940.91338971.4120.97372490032217.9331992120.64382260031390.86323937.7120.2578 沅水五强溪水库水利计算附表18方案二洪水调度计算表(P=0.01%)节点入库流量下泄流量库蓄水量库蓄水位11680016800251930.911521860018600251930.911532320020988.06253530.9115.1243200021849.58259712.1115.5853500023397.54270588.5116.463470024955.39281262117.273420026273.36290097.7117.8683370027356.09297232.9118.493290028204.72302752.5118.81103210028823.51306738.4119.11113130029240.46309406.4119.31123490029803.13312984.6119.58133660030677.21318494.5119.99143780031315.83324697.9120.29153970032042.11331769120.63164260032939.77340428121.04174700034121.47351697.4121.58185050035598.64365587.3122.24195500037357.67381859.2123.02205960039439.02400760.8123.92216530041887.75422547.5124.96226930044649.21446579126.11236440047109.64467549.6127.11246710049209.22485140.1127.95254990050267.02493902128.37264550049974.01491481.5128.25274080049197.85485045.6127.94283770048073.64475659.8127.5293750046899.41465773.3127.02303220045560.57454393.3126.48313680044343.07443941.5125.98323650043502.82436668.5125.64333620042726.43429903.9125.31343590042005.99423587.7125.01353560041334.69417667.3124.73363440040658.67411670.7124.44373340039941.57405270.5124.14383120039136.03398031.7123.7978 沅水五强溪水库水利计算附表19方案三洪水调度计算表(P=5%)节点入库流量下泄流量库蓄水量库蓄水位149804980152159.6105.99255305530152159.6105.99369006900152159.6105.99490909090152159.6105.9951020010200152159.6105.99699809980152159.6105.99796109610152159.6105.99893209320152159.6105.99990609060152159.6105.991084508450152159.6105.991177607760152159.6105.991293809380152159.6105.99131320013200152159.6105.99141550015500152159.6105.99151640016400152159.6105.99161760017222.82152348.2106.01171900017427.02153323.3106.13182040017859.53155380106.38192210018511.41158444.5106.75202350019347.44162315.1107.22212450020000166641.4107.74222530021394.57171541.4108.34232450022110.99174688.6108.72242310022459176203.6108.9252110022384.88175881.7108.86261850021853.59173562.4108.58271640020958.51169606.4108.1281510015100167327.1107.83291490014900167327.1107.83301400014000167327.1107.83311290012900167327.1107.83321190011900167327.1107.83331100011000167327.1107.833499309930167327.1107.833588408840167327.1107.833688208820167327.1107.833775707570167327.1107.833874907490167327.1107.8378 沅水五强溪水库水利计算附表20方案三洪水调度计算表(P=0.1%)节点入库流量下泄流量库蓄水量库蓄水位11360013600152159.6105.9921510015100152159.6105.9931880017336.69152891.2106.0842480018188.26156928.8106.5752760019749.3164160107.4462760021472.43171885.3108.3872720022689.94177204.1109.0282680023589.27181064.5109.4992620024203.18183668.3109.81102550024552.8185140.3109.99112490024651.46185738.2110.04122740024857.77187133.6110.14132950025354.73190477.3110.39143110026044.36195077.8110.74153260026862.01200474.6111.14163500027850.37206918.4111.62173870029150.34215268112.25184140030751.32225367.2113.01194510032622.12236930.5113.88204900034826.89250256114.87215370037409.68265487.7116.02225770040338.48282313.7117.28235300042795.36296096.8118.31244700043991.12302703.5118.81254100043992.58302711.7118.81263140042699.71295565.5118.27273360041026.42286202.4117.57283100039612.21278183.1116.97293040038184.72269984.7116.35303000036920.42262632.1115.8312960035804.86256069.5115.31322910034803.34250115.4114.86332860033888244619.7114.45342810033043.82239503.8114.07352740032243.5234610.1113.7362630031434.86229620.9113.33372490030567.82224219.6112.92382260029565.08217903.1112.4578 沅水五强溪水库水利计算附表21方案三洪水调度计算表(P=0.01%)节点入库流量下泄流量库蓄水量库蓄水位11680016800152159.6105.9921860017316.16152801.5106.0732320018000.13156043.4106.4643200020000164643.3107.553500022907.53178143.3109.1463470025130.87188974.1110.2873420026431.82197642.8110.9383370027497.58204628111.4593290028329.87210014.3111.86103210028933.18213882.8112.15113130029335.84216448.3112.34123490029886.65219937.1112.6133660030751.44225368113.01143780031712.05231336.3113.46153970032771.67237844.4113.94164260034048.07245584.5114.52174700035709.6255505.7115.27185050037759.45267521.2116.17195500040161.68281310.6117.2205960042966.54297046.5118.38216530046228.71314898.9119.72226930048832.19334668.4120.77236440050887.48351658.6121.58246710052603.75365663122.25254990053289.77371216.2122.51264550052639.33365951.7122.26274080051541.14357011.5121.83283770050130.06345425.9121.28293750048704.94333608.4120.72303220047145.04320533.4120.09313680045123.03308899.3119.27323650043706.13301134.8118.69333620042487.92294387.7118.18343590041430.96288478.3117.74353560040505.5283260.1117.35363440039615.13278199.8116.97373340038697.73272943.3116.58383120037679.12267054.9116.1378 沅水五强溪水库水利计算附表22方案四洪水调度计算表(P=5%)节点入库流量下泄流量库蓄水量库蓄水位14980498081557.9495.6725530553081557.9495.6736900690081557.9495.6749090909081557.9495.675102001020081557.9495.6769980998081557.9495.6779610961081557.9495.6789320932081557.9495.6799060906081557.9495.67108450845081557.9495.67117760776081557.9495.67129380938081557.9495.6713132001320081557.9495.6714155001550081557.9495.6715164001640081557.9495.67161760016616.9382049.4895.77171900017168.3283456.8596.06182040018011.0385567.1896.49192210019109.4388256.9597.0420235002000091502.2397.721245002000095502.2398.52222530020000100402.299.53232450026094.38105302.2100.31242310025545.36103282.4100.07252110020000102609.799.98261850024282.96100268.299.527164001640097376.7298.9128151001510097376.7298.9129149001490097376.7298.9130140001400097376.7298.9131129001290097376.7298.9132119001190097376.7298.9133110001100097376.7298.91349930993097376.7298.91358840884097376.7298.91368820882097376.7298.91377570757097376.7298.91387490749097376.7298.9178 沅水五强溪水库水利计算附表23方案四洪水调度计算表(P=0.1%)节点入库流量下泄流量库蓄水量库蓄水位1136001360081557.9495.672151001510081557.9495.6731880016811.6482552.1295.8742480018475.6686708.4796.725276002000093670.6498.1562760020000101270.699.772720027019.16108670.6100.7282680027014.5108653.8100.7292620026889.72108201.7100.66102550026638.11107287.8100.55112490026291.31106023.1100.4122740026257.33105898.8100.38132950026786.44107826.9100.62143110027641.11110913.1100.99153260028675.83114604.6101.44163500029951.32119091.1101.98173870031695.22125117.8102.71184140033847.19132396.6103.6194510036319.91140563104.58204900039205.06149850.6105.71215370042549.23160323.4106.98225770046260.84171618.4108.35235300048879.14179398.4109.29244700049204.93180356.4109.41254100047697.38175905.2108.87263140044416.97166048107.67273360041091.23155794106.43283100038688.05148204.3105.51293040036542.63141289104.67303000034865.74135784.8104.01312960033543.73131380103.47322910032461.14127727.6103.03332860031537.7124578.2102.65342810030729.37121794.7102.31352740029979.71119190.1102362630029198.41116451.1101.66372490028308.02113297.8101.28382260027192.54109297.6100.878 沅水五强溪水库水利计算附表24方案四洪水调度计算表(P=0.01%)节点入库流量下泄流量库蓄水量库蓄水位1168001680081557.9495.6721860016778.8582468.5295.8632320018149.4185904.3896.564320002000094429.6898.353500026814.76107929.7100.6363470028782.13114981.2101.4973420030195.55119942.4102.0983370031143.23123223102.4893290031691.67125105.6102.71103210031898125810.7102.8113130031847.42125638102.78123490032167.77126730.4102.91133660033089.25129851.9103.29143780034156.46133429.1103.72153970035361.09137420.3104.2164260036897.11142441.2104.81174700039025.55149279.9105.64185050041693.16157670.5106.66195500044789.32167179.3107.81205960048370.73177899.2109.11216530051939.47190194.1110.37226930054944.05204052.3111.41236440057308.58214776112.21246710059003.57222370112.78254990058902.04221917.2112.75264550056657.26211837.5111.99274080053986.69199665.5111.08283770051119.07186362.7110.08293750047308.38174748.9108.73303220043765.8164061.8107.43313680041184.87156086.5106.47323650039938.97152174.6105.99333620038961.08149074.6105.62343590038173.27146557.4105.31353560037521.19144460.2105.06363440036846.36142276.4104.79373340036062.44139722104.48383120035068.86136456.3104.0978 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