武汉大学河流水文学课程设计大作业

'目录一、设计任务4二、流域资料概况51、流域和水库简介52.水文气象资料5三、设计年径流及其年内分配61、设计年径流量计算62、设计年径流的年内分配6四、水库死水位选择91、由泥沙淤积计算92、由水轮机运行允许最低水头计算死库容93、死水位确定9五、正常水位的选择（附表9—12）10六、装机容量及多年平均发电量121、选取丰水年对应的年内分配进行水能计算（附表13—15）122、用同样的方法对平水年和枯水年进行出力计算（附表16—21）123、取设计枯水年供水期的平均出力为保证出力(45.66kW)124、装机利用小时数法计算装机容量12七、设计洪水过程线的推求221、资料三性审查及延展洪水系列222、设计洪峰及洪量计算23八、水库特征水位及坝顶高程的计算401、调洪规则及起调水位402、防洪高水位计算403、设计洪水位计算404、校核洪水位计算405、坝顶高程选择416、结论41 一、设计任务在太湖流域的西苕溪支流西溪上，拟修建一水库，因而要进行水库规划的水文水利计算，其具体任务是：1.设计年径流及其年内分配2.选择水库死水位。3.选择正常蓄水位。4.计算保证出力和多年平均发电量。5.选择水电站装机容量。6.推求各种洪水特征水位和确定大坝高程。二、流域资料概况1、流域和水库简介西苕溪为太湖流域一大水系，流域面积为2260km2，发源于浙江省安吉县天目山，干流全长150km，上游坡陡流急，安城以下堰塘遍布，河道曲折，排泄不畅，易遭洪涝灾害，又因流域拦蓄工程较少，灌溉水源不足，易受旱灾。该水库为根治西苕溪流域水旱灾害骨干工程之一，控制西苕溪主要支流西溪，坝址以上流域面积328km2。流域内气候温和、湿润、多年平均雨量孝丰站为1450mm，国民经济以农、林业为主，流域内大部为山区，小部为丘陵，平地较少。流域水系及测站分布见下图。水库以防洪为主，结合发电、灌溉、航运及水产，是一座综合利用水库。2.水文气象资料流域内有三个雨量站，分别从1956年、1961年和1962年开始观测到今。 在坝址下游1公里处设有水文站，自1954年开始有观测的流量资料，见附表1.根据调查1922年9月1日在坝址附近发生一场大洪水，推算得水文站洪峰流量为1350m³/s。这场洪水是发生后至今最大的一次洪水。缺测年份内，没有大于1160m³/s的洪水发生。 附表1年份1月2月3月4月5月6月7月8月9月10月11月12月19793.1613.0582.6934.15520.50152.13129.0158.91833.4624.3162.2262.14819803.2553.2716.56119.17332.91066.58977.026101.31311.30230.8397.1746.21319813.6494.4126.98332.23727.73231.0828.11710.6334.5505.2149.4833.49319822.1465.84411.80020.58431.25956.15223.08545.18141.24816.31025.84310.53119838.6117.3787.55427.13537.84145.72793.34621.80427.68522.66211.9574.44719843.0842.1972.85911.30225.28544.05139.00826.11213.42228.0776.83911.64319854.8165.86816.01023.51528.97530.28330.5379.6717.5116.47310.9406.78619865.7616.0887.78422.72021.32046.36862.88211.17610.2225.7556.0644.71519874.4422.8643.33116.39032.04844.41857.87442.86016.00325.8639.9115.01319884.5173.1536.2914.05624.14323.69011.71219.59545.5667.2603.6602.78719892.7846.48317.86446.99322.04136.72215.9018.68628.48923.57726.2617.41219905.90311.00121.34822.82533.83538.49126.9425.9323.5657.27115.1105.15919917.01610.22315.31315.96940.66231.63486.05222.95417.7465.7813.2363.14719922.2814.11316.07315.97435.31038.00620.9797.5445.9494.5272.7442.73919936.6289.84113.10816.99626.62226.08365.52765.17120.31411.54419.3857.96019944.3623.5915.01119.70314.67433.67612.3595.6468.23818.36210.12014.535199511.01612.5967.92919.35535.83874.01243.27430.1827.18821.0917.0234.09419964.2563.3016.63410.19123.11062.84992.90922.79122.32418.57928.3595.81019974.86410.55513.35229.26820.71119.37632.87012.6897.2858.2356.2788.35619988.2807.13918.45629.30448.31934.19581.69170.52912.94311.8254.9813.38919993.2382.3322.08123.19227.20086.89371.70117.05015.6158.61318.6795.65120005.3086.80810.7899.87910.67045.42123.98025.28913.72432.88510.74010.856 三、设计年径流及其年内分配1、设计年径流量计算①进行年径流量频率计算②绘制年径流频率曲线（见附表2、3），查出频率为10%、50%、90%的丰、平、枯年份的年径流量，即为设计年径流量2、设计年径流的年内分配①根据年、月径流资料和代表年的选择原则及由频率曲线查得的结果确定丰、中、枯三个代表年②按设计年径流量为控制用同倍比方法缩放各代表年的逐月年内分配（见附表4）附表2 附表3《径流频率曲线》计算成果拟合度0.956115样本均值Ex=19.76变差系数Cv=0.29偏态系数Cs=0.76倍比系数Cs/Cv=2.62序号mm频率(%)130.634.35226.318.70325.4013.04425.0617.39524.7921.74624.4826.09722.7130.43822.0334.78921.3539.131021.1943.481120.8047.831219.3752.171316.8256.521416.0360.871515.9765.221614.9169.571714.5373.911814.1678.261914.1382.612014.0786.962113.6191.302212.6995.65标准频率对应的设计值频率(%)设计值0.00157.430.0150.760.033347.150.0545.910.143.750.241.55 0.333339.880.538.54136.17233.713.333331.82530.251027.412024.252523.133022.164020.505019.046017.687016.327515.618014.858514.029013.049511.729710.95999.6699.97.9299.996.8799.9996.19附表4月份456789101112123年平均设计年平均K值1996（丰）10.1923.1162.8592.9122.7922.3218.5828.365.814.8610.5613.3526.3127.411.04设计流量10.6224.0865.4896.8023.7523.2619.3629.556.055.0711.0013.9127.411984（平）11.3025.2944.0539.0126.1113.4228.086.8411.644.825.8716.0119.3719.040.98设计流量11.1124.8543.3038.3425.6713.1927.606.7211.444.735.7715.7419.041981（枯）32.2427.7331.088.1210.634.555.219.483.492.155.8411.8012.6913.041.03设计流量33.1228.4931.938.3410.924.675.369.743.592.206.0012.1213.04 四、水库死水位选择1、由泥沙淤积计算根据泥沙年淤积量公式确定泥沙淤积死水位（见附表5、6）。2、由水轮机运行允许最低水头计算死库容（见附表7、8）3、死水位确定在泥沙淤积确定的死水位及水轮机运行允许最低水头确定的死水位中选择较大者，定为最终死水位，即泥沙淤积确定的死水位：67.41m附表5年均年径流量泥沙沉积率孔隙率泥沙颗粒干容重年均淤沙容积总淤沙容积淤积水位最终水位水库死水位W。(m3)mΦγ（kg/m3）V。(m3/年）V（m3）h（m）H（m）H。（m）617.9390%0.316500.1313.1265.4167.4167.41附表6附表7流量（m3/s）流量水位（m）最终水位（m）13.0446.8563.35 附表8五、正常水位的选择（附表9—12）（1）设计保证率为90%，则选取枯水年对应的年内分配为来水量（2）兴利要求调节流量不低于4.5m³/s，则将用水量定为4.5m³/s（3）来水量减去用水量得余水量或缺水量（4）求得总缺水量，其绝对值即为兴利用水量，即3.21m³/s（5）根据（4）中求得的结果确定各月份末水库的蓄水量及弃水量（6）根据（4）中求得的结果可计算得兴利库容为8.44百万m³（7）根据水位库容曲线查得死库容为9.11百万m³（8）死库容加上兴利库容得正常蓄水位所对应的库容：17.55百万m³（9）根据（8）中求得的结果及水位库容曲线查得正常蓄水位为68.50m附表9用水量余水(+)或缺水(-)时段末水库蓄水量弃水水库运用状态兴利库容4.51.501.50蓄水（库空）8.444.57.623.215.91弃水（库满）4.528.623.2128.62。。4.523.993.2123.99。。4.527.433.2127.43。。4.53.843.213.84。。4.56.423.216.42。。4.50.173.210.17。。4.50.863.210.86。。4.55.243.215.24。。4.5-0.912.30供水4.5-2.30（库空）54102.48102.480水量平衡 附表10附表11死水位死库容兴利库容正常蓄水位对应库容正常蓄水位H。(m)V1(百万m3)V2(百万m3)V3(百万m3)H(m)67.419.118.4417.5568.50附表12六、装机容量及多年平均发电量1、选取丰水年对应的年内分配进行水能计算（附表13—15）（1）根据来水量及兴利用水量，对发电用水进行调试，确定12～1月为供水期，7月为蓄水期（2）根据天然来水量及发电用水量求得各月份余水量及不足水量 （3）根据水库死库容、各月天然来水入库量及水库放水量确定月末水库蓄水量，并求得月平均蓄水量（4）根据月平均蓄水量及水位容积曲线求得月平均水位（5）根据发电用水量及水位流量曲线求得下游水位（6）月平均水位减去下游水位及预留水头损失（0.5m）即得到水头差（7）出力系数为7.5，则根据水电站出力公式计算出各月的水流出力2、用同样的方法对平水年和枯水年进行出力计算（附表16—21）3、取设计枯水年供水期的平均出力为保证出力保证出力为45.66kW4、装机利用小时数法计算装机容量（1）将丰、平、枯三年（36个月）的出力列入表中，进行经验频率计算，并将其视作一年的出力情况进行持续时间的计算（2）绘制年平均出力频率曲线及年平均出力历时曲线（见附表22、23、24）（3）计算出力增量，即每行的出力减去下一行出力，最后一行出力即为本行出力值（4）计算平均持续时间，即每行的持续时间与下一行持续时间的均值，最后一行持续时间即为本行平均持续时间（5）计算电量增量，即出力增量乘以平均持续时间（6）计算累计电量，最后一行出力即为本行累计电量，然后将本行累计电量加上上一行的电量增量即为本行的累计电量（本列数据由下向上计算）（7）将累计电量除以出力即得年利用小时数（8）利用调试法求得当年利用小时数为3440h时，装机容量为5360kW，但是，由于单机容量为1250kW，所以，装机容量为6250kW，此时多年平均发电量为1875万kW•h，相应地，年利用小时数变为3000h 附表13余水量不足水量月份天然来水（m3/s）发电用水（m3/s）流量（m3/s）水量（百万m3）流量（m3/s）水量（百万m3）月末水库蓄水（百万m3）平均蓄水（百万m3）月平均水位（m）下游水位（m）水头（m）出力（kW）19.11211.0011.009.119.1160.5646.7613.301096.75313.9113.919.119.1160.5646.8913.161373.16410.6210.629.119.1160.5646.7413.311060.54524.0824.089.119.1160.5647.3712.692290.77665.4865.489.119.1160.5649.3110.755278.25796.8093.593.218.4417.5513.3362.6750.6211.548101.68823.7523.7517.5517.5564.7847.3516.923013.52923.2623.2617.5517.5564.7847.3316.942955.741019.3619.3617.5517.5564.7847.1517.132486.411129.5529.5517.5517.5564.7847.6316.653689.57126.057.171.122.9414.6116.0864.0446.5816.96912.1115.077.162.095.509.1111.8661.9346.5814.85797.581、库容单位转换8.44百万立方米=3.21m3/s.月2、供水期为12～1月来水量=11.12m3/s.月 3、供水期调节流量=7.17m3/s.月4、确认供水5、蓄水期为7月来水量=96.80m3/s.月6、蓄水期调节流量=93.59m3/s.月7、确认蓄水附：水库死库容9.11百万立方米 附表14附表15 附表16余水量不足水量月份天然来水（m3/s）发电用水（m3/s）流量（m3/s）水量（百万m3）流量（m3/s）水量（百万m3）月末水库蓄水（百万m3）平均蓄水（百万m3）月平均水位（m）下游水位（m）水头（m）出力（kW）19.11315.7415.749.119.1160.5646.9813.081543.34411.1111.119.119.1160.5646.7613.291107.54524.8524.859.119.1160.5647.4112.652357.89643.3040.093.218.4417.5513.3362.6648.1214.044223.07738.3438.3417.5517.5564.7748.0416.244669.35825.6725.6717.5517.5564.7847.4416.833240.07913.1913.1917.5517.5564.7846.8617.411723.221027.6027.6017.5517.5564.7847.5316.743465.19116.726.810.090.2417.3117.4364.7246.5617.65901.861211.4411.4417.3117.3164.6646.7817.381491.5414.736.812.085.4611.8514.5863.2946.5616.23829.0625.776.811.042.749.1110.4861.2446.5614.18724.301、库容单位转换8.44百万立方米=3.21m3/s.月 2、供水期为11、1、2月来水量=17.22m3/s.月3、供水期调节流量=6.81m3/s.月4、确认供水5、蓄水期为7月来水量=43.30m3/s.月6、蓄水期调节流量=40.09m3/s.月7、确认蓄水附：水库死库容9.11百万立方米 附表17附表18附表19（见下页） 余水量不足水量月份天然来水（m3/s）发电用水（m3/s）流量（m3/s）水量（百万m3）流量（m3/s）水量（百万m3）月末水库蓄水（百万m3）平均蓄水（百万m3）月平均水位（m）下游水位（m）水头（m）出力（kW）19.1126.006.009.119.1160.5646.5213.53609.22312.1212.129.119.1160.5646.8113.241204.08433.1229.913.218.4417.5513.3362.6747.6414.523257.70528.4928.4917.5517.5564.7847.5816.703567.78631.9331.9317.5517.5564.7847.7416.543960.2078.348.3417.5517.5564.7846.6317.641103.24810.9210.9217.5517.5564.7846.7517.521435.3094.674.6717.5517.5564.7846.4617.81624.43105.365.3617.5517.5564.7846.4917.78714.28119.749.7417.5517.5564.7846.7017.581284.10123.594.500.912.4015.1516.3564.1846.4517.22581.2512.204.502.306.049.1112.1362.0746.4515.11510.071、库容单位转换8.44百万立方米=3.21m3/s.月2、供水期为12～1月来水量=5.79m3/s.月=4.50 3、供水期调节流量m3/s.月4、确认供水5、蓄水期为7月来水量=33.12m3/s.月6、蓄水期调节流量=29.91m3/s.月7、确认蓄水8、保证出力=545.66kW9、附：水库死库容9.11百万立方米 附表20附表21附表22序号出力（kW）频率持续时间（h）出力增量（kW）平均持续时间（h）电量增量（万kW·h）电量累计（万kW·h）年利用小时数（h）nNP=n/37T=P*8760∆N=N(n)-N(n+1)∆T=[T(n)+T(n+1)]/2∆E=∆N*∆T/10000∑∆ET。18101.680.02702372823.44355.1100.271940.93239625278.250.0541474608.90591.936.041840.66348734669.350.0811710446.27828.636.981804.62386544223.070.1081947262.881065.428.011767.644186 53960.200.13511184270.631302.235.241739.63439363689.570.16221421121.791538.918.741704.39461973567.780.18921657102.591775.718.221685.65472583465.190.21621894207.492012.441.761667.43481293257.700.2432213117.622249.23.961625.684990103240.070.27032368226.562485.956.321621.715005113013.520.2973260457.782722.715.731565.395195122955.740.32432841469.332959.5138.901549.665243132486.410.35143078128.523196.241.081410.765674142357.890.3784331567.123433.023.041369.695809152290.770.40543551567.553669.7208.281346.655879161723.220.43243788179.883906.570.271138.376606171543.340.4595402551.794143.221.461068.106921181491.540.4865426256.244380.024.641046.647017191435.300.5135449862.144616.828.691022.007121201373.160.5405473589.054853.543.22993.327234211284.100.5676497280.025090.340.73950.097399221204.080.5946520996.545327.051.43909.367552231107.540.621654454.305563.82.39857.937746241103.240.648656826.495800.53.76855.547755251096.750.6757591936.226037.321.86851.787766261060.540.70276156148.436274.193.12829.91782527912.110.7297639210.266510.86.68736.79807828901.860.7568662972.806747.649.12730.11809629829.060.7838686631.486984.321.99680.99821430797.580.8108710373.287221.152.91659.01826331724.300.8378733910.037457.87.48606.09836832714.280.8649757689.847694.669.13598.62838133624.430.8919781315.217931.412.07529.48847934609.220.9189805027.978168.122.84517.42849335581.250.9459828671.188404.959.83494.57850936510.070.97308523510.078523.2434.75434.758523根据试算可得当年利用小时数为3440h时，装机容量为5360kW 但是，由于单机容量为1250kW，所以，装机容量定为6250kW附表23附表24 七、设计洪水过程线的推求1、资料三性审查及延展洪水系列（1）资料可靠性的审查与改正对实测洪水资料的测验与整编方法要进行检查，检查的重点应放在观测与整编质量较差的年份，特别是建国以前和整治动乱时期，以及对设计洪水计算成果影响较大的大洪水年份。审查时要注意了解水尺位置、零点高程、水准基面的变动情况，测流断面冲淤变化情况和浮标系数的选用、水位流量关系曲线的高水延长是否合理等。除此之外，还应通过历年水位流量关系曲线的对比、上下游干支流的水量平衡及洪水过程线的对照、暴雨资料及降雨径流关系的分析等方面进行检查。如发现问题，应会同原资料整编单位研究和修正。历史洪水资料的审查，一是调查计算的洪峰流量；二是审查洪水发生的年份。对于前者，主要审查历史洪水痕迹是否可靠、上下游是否一致以及流量计算采用的方法、参数等是否合理。对于后者，主要要了解确定历史洪水发生年份的依据是否充分、与上下游和临近流域是否一致，有无当时的气象资料旁证。通过熟悉流域的自然地理情况，广泛搜集有关水文气象资料（见流域资料概况），对实测资料可靠性进行初步审查，证实此资料可用于本次设计。（2）资料一致性的审查与还原所谓洪水资料的一致性，就是产生各年洪水的流域产流和汇流条件在调查观测期中应基本相同。若这些条件发生了较大的变化，以致明显地影响到各年洪水资料的一致性时，需要将变化后的资料还原到原先天然状态的基础上，以保证抽样的随机性（消除人为的控制）和能与历史洪水组成一个具有一致性的系列。通过熟悉流域的自然地理情况，广泛搜集有关水文气象资料（见流域资料概况），对实测资料一致性进行初步审查，证实此资料可用于本次设计。（3）资料代表性的审查与插补延长洪水资料代表性的概念与年径流资料代表性的概念是一致的。当洪水资料的频率分布能近似反映洪水的总体分布时，则认为具有代表性；否则，则认为缺乏代表性。由于总体的概率分布为未知，代表性的鉴别一般只能通过与更长期的其他系列（近似代表总体作做较来衡量。实际工作中，为保证洪水系列具有一定的代表性，常要求连续实测的洪水年数一般不少于20～30年，并有若干个调查的历史洪水。本次实测资料为24年，符合要求。另外根据调查1922年9月1日在坝址附近发生一场大洪水，推算得水文站洪峰流量为1350m³/s。这场洪水是发生后至今最大的一次洪水。缺测年份内，没有大于1160m³/s的洪水发生。当实测资料缺乏代表性时，应插补延长和补充历史特大洪水，使之满足代表性的要求。经审查，需要对七天洪量进行插不延长：①对一天和七天洪量进行相关分析，得其相关系数为：0.94>0.8，即相关密切（见附表25）②对三天和七天洪量进行相关分析，得其相关系数为：0.98>0.8，即相关密切（见附表26）③通过对比得出：三天洪量与七天洪量比一天洪量与七天洪量相关性好，且其回归方程为y=0.997x+9.067回归直线的均方误为4.92 ④根据回归方程插补延长七天洪量（见附表27）2、设计洪峰及洪量计算（1）设计洪峰计算①按照独立样本法对洪峰进行频率估计（见附表28）②绘制洪峰频率曲线（见附表29、30）③选取设计频率分别为5％、1％和0.2％对应的洪峰④根据设计洪峰及实测洪峰求出相应的放大倍比（见附表31）（2）设计洪量计算分别绘制一天、三天和七天洪量频率曲线（见附表32—37），找到设计频率为5％、1％和0.2％所对应的洪量，求出相应的放大倍比（见附表31）（3）设计洪水过程线的推求根据同频率放大法对典型洪水过程线进行放大，绘制洪水过程线并对之进行调匀（见附表38—41）附表25年份24小时洪量W七天洪量WK′K″K′-1K″-1(K′-1)2(K″-1)2(K′-1)(K″-1)（百万m3）（百万m3）195722.8052.461.081.260.080.260.010.070.0219588.7222.150.410.53-0.59-0.470.340.220.27195911.1332.900.530.79-0.47-0.210.220.040.10196015.7033.200.740.80-0.26-0.200.070.040.05196152.5088.202.482.121.481.122.201.251.66196243.7053.102.071.281.070.281.140.080.29196355.6095.902.632.301.631.302.661.702.13196414.3240.700.680.98-0.32-0.020.100.000.01196515.6227.000.740.65-0.26-0.350.070.120.0919669.5025.400.450.61-0.55-0.390.300.150.21196711.8228.000.560.67-0.44-0.330.190.110.1419689.9035.500.470.85-0.53-0.150.280.020.08196920.9048.400.991.16-0.010.160.000.030.00197017.2035.600.810.86-0.19-0.140.030.020.03197123.4035.301.110.850.11-0.150.010.02-0.0219725.3412.230.250.29-0.75-0.710.560.500.53均值21.1341.63合计338.15666.0416.0016.000.000.008.204.375.60均方差15.6322.48相关系数0.94＞0.8 则相关密切附表26年份三天洪量W七天洪量W（百万m3）（百万m3）195458.4067.29195513.3022.33195636.0044.96195737.1952.46195815.8522.15195919.8032.90196020.8033.20196179.1088.20196249.2053.10196386.6095.90196431.7040.70196524.4027.00196614.0025.40196719.0028.00196818.4035.50196932.8048.40197031.9035.60197131.8035.30197210.2012.23197342.8551.79197439.0548.00197522.0531.05197619.9528.96197720.4529.46则回归方程y=0.997x+9.067回归直线的均方误4.92附表27年份三天洪量W七天洪量W（百万m3）（百万m3）195458.4067.29195513.3022.33195636.0044.96195737.1952.46195815.8522.15195919.8032.90196020.8033.20196179.1088.20196249.2053.10196386.6095.90 196431.7040.70196524.4027.00196614.0025.40196719.0028.00196818.4035.50196932.8048.40197031.9035.60197131.8035.30197210.2012.23197342.8551.79197439.0548.00197522.0531.05197619.9528.96197720.4529.46则回归方程y=0.997x+9.067回归直线的均方误4.92附表28调查期或实测期系列年数洪水序位洪水年份洪峰Qm（m3/s）经验频率PnNmM（独立样本法）调查期N561192213500.022196311600.04实测期n24119631160已由上栏算出219567480.08319547020.12419616590.16519625850.20619655100.24719715000.28819734840.32919604780.361019644090.401119574020.441219693870.481319703050.521419742870.561519552840.601619672440.641719772380.681819592370.721919662320.762019582000.802119681670.84 2219751660.882319761190.922419721080.96附表29附表30《洪峰频率曲线》计算成果拟合度0.985768样本均值Ex=420.91变差系数Cv=0.7偏态系数Cs=1.99倍比系数Cs/Cv=2.84序号mm频率(%)11350.001.7521160.003.513748.008.004702.0012.005659.0016.006585.0020.007510.0024.00 8500.0028.009484.0032.0010478.0036.0011409.0040.0012402.0044.0013387.0048.0014305.0052.0015287.0056.0016284.0060.0017244.0064.0018238.0068.0019237.0072.0020232.0076.0021200.0080.0022167.0084.0023166.0088.0024119.0092.0025108.0096.00标准频率对应的设计值频率(%)设计值0.0013509.110.012833.470.03332480.430.052361.130.12157.670.21954.190.33331804.250.51685.1611481.6121278.003.33331127.9151008.7410804.9520600.9925535.2730481.5540396.7350330.8660276.9670231.3275210.85 80191.6885173.6390156.5795140.3697134.0899127.8999.9125.1199.99124.8299.999124.80附表31设计洪峰设计洪量实测洪峰实测洪量m3/s百万m3m3/s百万m3一天三天七天一天三天七天P=5%1008.7455.1078.8990.02116055.6086.6095.90P=1%1481.6186.27118.29128.42P=0.2%1954.19118.27158.11166.90放大倍比P=5%0.870.990.771.20P=1%1.281.551.031.09P=0.2%1.682.131.290.95 附表32附表33《一天洪量频率曲线》计算成果拟合度0.973773样本均值Ex=20.79变差系数Cv=0.82偏态系数Cs=2.49倍比系数Cs/Cv=3.04序号mm频率(%)155.604.00252.508.00343.7012.00429.8016.00527.9420.00623.4024.00722.8028.00820.9032.00919.8736.00 1017.2040.001116.1644.001215.7048.001315.6252.001414.3256.001511.8260.001611.5864.001711.1368.00189.9072.00199.5076.00208.7280.00218.2984.00228.1788.00237.6192.00245.3496.00标准频率对应的设计值频率(%)设计值0.001226.160.01178.960.0333154.460.05146.220.1132.210.2118.270.3333108.050.599.98186.27272.713.333362.84555.101042.132029.652525.793022.724018.065014.676012.107010.13759.33808.65858.08907.61 957.27977.18997.1199.97.1099.997.1099.9997.10附表34附表35《三天洪量频率曲线》计算成果拟合度0.969996样本均值Ex=32.28变差系数Cv=0.72偏态系数Cs=2.19倍比系数Cs/Cv=3.04序号mm频率(%)186.604.00279.108.00358.4012.00 449.2016.00542.8520.00639.0524.00737.1928.00836.0032.00932.8036.001031.9040.001131.8044.001231.7048.001324.4052.001422.0556.001520.8060.001620.4564.001719.9568.001819.8072.001919.0076.002018.4080.002115.8584.002214.0088.002313.3092.002410.2096.00标准频率对应的设计值频率(%)设计值0.001290.510.01232.810.0333202.740.05192.600.1175.340.2158.110.3333145.440.5135.401118.292101.253.333388.76578.891062.152045.662540.433036.204029.625024.64 6020.677017.447516.048014.778513.629012.609511.729711.419911.1599.911.0699.9911.0699.99911.05附表36附表37《七天洪量频率曲线》计算成果拟合度0.96639样本均值Ex=42.89变差系数Cv=0.55偏态系数Cs=2.04倍比系数Cs/Cv=3.71 序号mm频率(%)195.904.00288.208.00367.2912.00453.1016.00552.4620.00651.7924.00748.4028.00848.0032.00944.9636.001040.7040.001135.6044.001235.5048.001335.3052.001433.2056.001532.9060.001631.0564.001729.4668.001828.9672.001928.0076.002027.0080.002125.4084.002222.3388.002322.1592.002412.2396.00标准频率对应的设计值频率(%)设计值0.001293.860.01238.650.0333209.820.05200.090.1183.490.2166.900.3333154.680.5144.981128.422111.873.333399.68590.021073.54 2057.102551.833047.534040.765035.546031.297027.737526.158024.688523.309022.029520.849720.399919.9699.919.7899.9919.7699.99919.76 附表38P=5%P=1%P=0.2%时间典型流量放大倍比放大流量修匀流量放大倍比放大流量修匀流量放大倍比放大流量修匀流量Δt＝1hm3/sm3/sm3/sm3/sm3/sm3/sm3/s七天061.207.27.21.096.546.540.955.75.7171.208.48.41.097.637.630.956.656.65271.208.48.41.097.637.630.956.656.65381.209.69.61.098.728.720.957.67.64151.2018181.0916.3516.350.9514.2514.255231.2027.627.61.0925.0725.070.9521.8521.856341.2040.840.81.0937.0637.060.9532.332.3三天7431.20/0.7751.60/33.1142.351.09/1.0346.87/44.2947.8850.95/1.2940.85/55.4752.9158570.7743.8943.891.0358.7158.711.2973.5373.539730.7756.2156.211.0375.1975.191.2994.1794.17101000.7777771.031031031.291291291300.77100.1100.11.03133.9133.91.29167.7167.7 11121710.77131.67131.671.03176.13176.131.29220.59220.59132300.77177.1177.11.03236.9236.91.29296.7296.7142600.77200.2200.21.03267.8267.81.29335.4335.4153170.77244.09244.091.03326.51326.511.29408.93408.93163350.77257.95257.951.03345.05345.051.29432.15432.15173620.77278.74278.741.03372.86372.861.29466.98466.98一天183730.77/0.99287.21/369.27312.621.03/1.55384.19/578.15457.681.29/2.13481.17/794.49606.24193500.99346.5346.51.55542.5542.52.13745.5745.5203300.99326.7326.71.55511.5511.52.13702.9702.9213150.99311.85311.851.55488.25488.252.13670.95670.95223050.99301.95301.951.55472.75472.752.13649.65649.65232930.99290.07290.071.55454.15454.152.13624.09624.092930.99290.071.55454.15454.152.13624.09624.09 24290.07254450.99440.55440.551.55689.75689.752.13947.85947.85265750.99569.25569.251.55891.25891.252.131224.751224.75276750.99668.25668.251.551046.251046.252.131437.751437.75288050.99796.95796.951.551247.751247.752.131714.651714.65299150.99905.85905.851.551418.251418.252.131948.951948.953010000.999909901.55155015502.13213021303110600.991049.41049.41.55164316432.132257.82257.83211300.991118.71118.71.551751.51751.52.132406.92406.9洪峰3311600.99/0.871148.40/1009.201148.41.55/1.281798.00/1484.8017982.13/1.682470.80/1948.802470.8一天3410600.991049.41049.41.55164316432.132257.82257.8359500.99940.5940.51.551472.51472.52.132023.52023.5368640.99855.36855.361.551339.21339.22.131840.321840.327600.99752.4752.41.55117811782.131618.81618.8 37386600.99653.4653.41.55102310232.131405.81405.8396170.99610.83610.831.55956.35956.352.131314.211314.21404700.99465.3465.31.55728.5728.52.131001.11001.1413700.99/0.77366.30/284.90350.461.55/1.03573.50/381.10521.842.13/1.29788.10/477.30697.92423060.77235.62235.621.03315.18315.181.29394.74394.74三天432600.77200.2200.21.03267.8267.81.29335.4335.4442350.77180.95180.951.03242.05242.051.29303.15303.15452270.77174.79174.791.03233.81233.811.29292.83292.83462400.77184.8184.81.03247.2247.21.29309.6309.6472530.77194.81194.811.03260.59260.591.29326.37326.37482690.77207.13207.131.03277.07277.071.29347.01347.01492770.77213.29213.291.03285.31285.311.29357.33357.332860.77220.221.03294.58294.581.29368.94368.94 50220.22512950.77227.15227.151.03303.85303.851.29380.55380.55522900.77223.3223.31.03298.7298.71.29374.1374.1532630.77202.51202.511.03270.89270.891.29339.27339.27542770.77213.29213.291.03285.31285.311.29357.33357.33552650.77204.05204.051.03272.95272.951.29341.85341.85562520.77194.04194.041.03259.56259.561.29325.08325.08572450.77188.65188.651.03252.35252.351.29316.05316.05582350.77180.95180.951.03242.05242.051.29303.15303.15592240.77172.48172.481.03230.72230.721.29288.96288.96602120.77163.24163.241.03218.36218.361.29273.48273.48612050.77157.85157.851.03211.15211.151.29264.45264.45621920.77147.84147.841.03197.76197.761.29247.68247.681800.77138.6138.61.03185.4185.41.29232.2232.2 63641610.77123.97123.971.03165.83165.831.29207.69207.69651550.77119.35119.351.03159.65159.651.29199.95199.95661450.77111.65111.651.03149.35149.351.29187.05187.05671300.77100.1100.11.03133.9133.91.29167.7167.7681180.7790.8690.861.03121.54121.541.29152.22152.22691180.7790.8690.861.03121.54121.541.29152.22152.22701030.7779.3179.311.03106.09106.091.29132.87132.8771970.7774.6974.691.0399.9199.911.29125.13125.1372920.7770.8470.841.0394.7694.761.29118.68118.6873850.7765.4565.451.0387.5587.551.29109.65109.6574820.7763.1463.141.0384.4684.461.29105.78105.7875790.7760.8360.831.0381.3781.371.29101.91101.91650.7750.0550.051.0366.9566.951.2983.8583.85 7677550.7742.3542.351.0356.6556.651.2970.9570.9578430.77/1.2033.11/51.6045.7751.03/1.0944.29/46.8750.671.29/0.9555.47/40.8554.95七天79411.2049.249.21.0944.6944.690.9538.9538.9580331.2039.639.61.0935.9735.970.9531.3531.3581361.2043.243.21.0939.2439.240.9534.234.282431.2051.651.61.0946.8746.870.9540.8540.8583491.2058.858.81.0953.4153.410.9546.5546.5584531.2063.663.61.0957.7757.770.9550.3550.3585501.2060601.0954.554.50.9547.547.586481.2057.657.61.0952.3252.320.9545.645.687471.2056.456.41.0951.2351.230.9544.6544.6588461.2055.255.21.0950.1450.140.9543.743.7441.2052.852.81.0947.9647.960.9541.841.8 8990431.2051.651.61.0946.8746.870.9540.8540.8591411.2049.249.21.0944.6944.690.9538.9538.9592391.2046.846.81.0942.5142.510.9537.0537.0593371.2044.444.41.0940.3340.330.9535.1535.1594351.2042421.0938.1538.150.9533.2533.2595341.2040.840.81.0937.0637.060.9532.332.396331.2039.639.61.0935.9735.970.9531.3531.3597321.2038.438.41.0934.8834.880.9530.430.498311.2037.237.21.0933.7933.790.9529.4529.4599301.2036361.0932.732.70.9528.528.5 附表39附表40附表41 八、水库特征水位及坝顶高程的计算1、调洪规则及起调水位①调洪规则根据水库下游防洪要求，等于或小于P1的洪水，只放(调节流量+10)，其余全部拦蓄在水库里，超过P1的洪水，溢洪道和泄洪洞共同泄洪，自由泄流。②起调水位（防洪限制水位）＝正常蓄水位－1m，即起调水位为67.5m2、防洪高水位计算用P1过程线，除下泄(调节流量+10)外，其余蓄在水库，总蓄水量加在防洪限制水位上，则可得防洪高水位（见附表42、43、44）。计算得防洪高水位为81.5m3、设计洪水位计算用P2洪水过程线，从防洪限制水位开始，先按(调节流量+10)下泄，其余蓄在水库里，待蓄至防洪高水位后，即打开溢洪道闸门和泄洪洞闸门，自由泄流，通过调洪演算，得设计洪水位、拦洪库容和相应最大下泄流量（见附表45、46、47）。计算得最大下泄流量为342.89m³/s，拦洪库容为90.23百万m³，设计洪水位为82.40m4、校核洪水位计算方法与设计洪水计算相同，只是用P3设计洪水过程线来进行计算（见附表48、49、50）。计算得最大下泄流量为365.16m³/s，调洪库容为121.96百万m³，校核洪水位为87.33m5、坝顶高程选择本水库为大（2）型水库，工程等别为Ⅱ等，永久性水工建筑级别为2级。坝顶高程应在正常运用最高水位上加1.0m，即83.40m；或者在非常运用最高水位上加0.5m，即87.83m。两者应取最大值，则坝顶高程为87.83m。6、结论1、水库死水位67.41m，死库容9.11百万m³2、正常蓄水位68.50m，兴利库容8.44百万m³3、保证出力545.66kW，装机容量6250kW，多年平均发电量1875万kW•h4、防洪高水位81.5m，防洪库容80.20百万m³设计洪水位82.40m，拦洪库容90.23百万m³ 校核洪水位87.33m，调洪库容121.96百万m³确定大坝高程为87.83m附表42时间P1流量入库流量Δt＝1hm3/sm3/s07.2018.4028.4039.604183.5527.613.1640.826.3742.3527.85843.8929.39956.2141.71107762.511100.185.612131.67117.1713177.1162.614200.2185.715244.09229.5916257.95243.4517278.74264.2418312.62298.1219346.533220326.7312.221311.85297.3522301.95287.4523290.07275.5724290.07275.5725440.55426.0526569.25554.7527668.25653.7528796.95782.4529905.85891.3530990975.5311049.41034.9321118.71104.2331148.41133.9341049.41034.935940.592636855.36840.8637752.4737.9 38653.4638.939610.83596.3340465.3450.841350.46335.9642235.62221.1243200.2185.744180.95166.4545174.79160.2946184.8170.347194.81180.3148207.13192.6349213.29198.7950220.22205.7251227.15212.6552223.3208.853202.51188.0154213.29198.7955204.05189.5556194.04179.5457188.65174.1558180.95166.4559172.48157.9860163.24148.7461157.85143.3562147.84133.3463138.6124.164123.97109.4765119.35104.8566111.6597.1567100.185.66890.8676.366990.8676.367079.3164.817174.6960.197270.8456.347365.4550.957463.1448.647560.8346.337650.0535.557742.3527.857845.77531.2757949.234.78039.625.1 8143.228.78251.637.18358.844.38463.649.1856045.58657.643.18756.441.98855.240.78952.838.39051.637.19149.234.79246.832.39344.429.9944227.59540.826.39639.625.19738.423.99837.222.7993621.5防洪限制水位=正常蓄水位-1m则防洪限制水位为67.5m此时，对应库容为26.85百万m3入库洪量80.20百万m3则防洪高水位对应库容为107.05百万m3则防洪高水位为81.5m附表43 附表44 附表45时间P2流量入库流量入库洪量累积入库洪量水库水量水库水位平均流量平均洪量泄流能力平均泄流能力平均泄洪量泄流后库容泄流后水位Δt＝1hm3/sm3/s百万m3百万m3百万m3mm3/s百万m3m3/sm3/s百万m3百万m3m06.5400026.8568.3817.6300026.8568.3827.6300026.8568.3838.7200026.8568.38416.351.850026.8568.38525.0710.570.040.0426.8968.39637.0622.560.080.1226.9768.40747.88533.3850.120.2427.0968.42858.7144.210.160.4027.2568.44 975.1960.690.220.6227.4768.481010388.50.320.9427.7968.5211133.9119.40.431.3728.2268.5912176.13161.630.581.9528.8068.6813236.9222.40.802.7529.6068.8114267.8253.30.913.6630.5168.9515326.51312.011.124.7831.6369.1216345.05330.551.195.9732.8269.3117372.86358.361.297.2634.1169.5118457.68443.181.608.8635.7169.7619542.55281.9010.7637.6170.0520511.54971.7912.5539.4070.3321488.25473.751.7114.2541.1070.59 22472.75458.251.6515.9042.7570.8523454.15439.651.5817.4944.3471.1024454.15439.651.5819.0745.9271.3425689.75675.252.4321.5048.3571.7226891.25876.753.1624.6651.5172.21271046.251031.753.7128.3755.2272.79281247.751233.254.4432.8159.6673.48291418.251403.755.0537.8664.7174.263015501535.55.5343.3970.2475.123116431628.55.8649.2576.1076.03321751.517376.2555.5182.3677.013317981783.56.4261.9388.7878.003416431628.55.8667.7994.6478.91y=4.5167x-29.289x<88m 351472.514585.2573.0499.8979.73y=489.5x-43117x>88m361339.21324.74.7777.81104.6680.47(开始泄流）3711781163.54.1982.00108.8581.121100.503.96337.12338.081.22108.8581.123810231008.53.6385.63112.4881.69989.683.56339.04339.861.22111.5981.5539956.35941.853.3989.02115.8782.21842.433.03340.68341.321.23113.9381.9140728.57142.5791.59118.4482.61625.172.25341.95342.311.23115.7482.1941521.84507.341.8393.42120.2782.90432.371.56342.67342.781.23116.7682.3541.87342.89328.390.4493.85120.7082.96329.040.44342.89342.890.46117.0882.4042315.18300.680.6894.53121.3883.07291.490.66342.88342.880.78117.0682.4043267.8253.30.9195.45122.3083.21254.930.92342.73342.801.23116.9482.3844242.05227.550.8296.27123.1283.34237.930.86347.13342.581.23116.6382.3345233.81219.310.7997.06123.9183.46240.510.87347.68342.311.23116.2582.2746247.2232.70.8497.89124.7483.59253.900.91348.27342.051.23115.8882.22 47260.59246.090.8998.78125.6383.73268.830.97348.89341.831.23115.5782.1748277.07262.570.9599.72126.5783.88281.191.01349.56341.651.23115.3082.1349285.31270.810.97100.70127.5584.03289.951.04350.24341.491.23115.0982.0950294.58280.081.01101.71128.5684.18299.221.08350.95341.361.23114.9082.0651303.85289.351.04102.75129.6084.35301.281.08351.68341.261.23114.7582.0452298.7284.21.02103.77130.6284.51284.801.03352.40341.161.23114.6182.0253270.89256.390.92104.70131.5584.65278.101.00353.05341.011.23114.4081.9954285.31270.810.97105.67132.5284.80279.131.00353.73340.851.23114.1881.9555272.95258.450.93106.60133.4584.95266.260.96354.38340.701.23113.9581.9256259.56245.060.88107.48134.3385.08255.960.92355.00340.511.23113.6981.8757252.35237.850.86108.34135.1985.22247.200.89355.60340.301.23113.3881.8358242.05227.550.82109.16136.0185.34236.390.85356.18340.061.22113.0581.7759230.72216.220.78109.94136.7985.46224.540.81356.72339.801.22112.6781.72 60218.36203.860.73110.67137.5285.58214.760.77357.24339.511.22112.2681.6561211.15196.650.71111.38138.2385.69204.460.74357.74339.191.22111.8181.5862197.76183.260.66112.04138.8985.79191.580.69358.20338.851.22111.3281.5163185.4170.90.62112.65139.5085.89175.620.63358.63338.481.22110.7981.4264165.83151.330.54113.20140.0585.97162.740.59359.01338.071.22110.2181.3365159.65145.150.52113.72140.5786.05154.500.56359.38337.631.22109.5881.2466149.35134.850.49114.21141.0686.13141.630.51359.72337.161.21108.9281.1367133.9119.40.43114.64141.4986.19127.720.46360.02336.671.21108.2181.0268121.54107.040.39115.02141.8786.25121.540.44360.29336.141.21107.4680.9169121.54107.040.39115.41142.2686.31113.820.41360.56335.601.21106.6980.7970106.0991.590.33115.74142.5986.36103.000.37360.80335.041.21105.8980.667199.9185.410.31116.04142.8986.4197.340.35361.01334.451.20105.0580.537294.7680.260.29116.33143.1886.4691.160.33361.21333.851.20104.2080.40 7387.5573.050.26116.60143.4586.5086.010.31361.40333.241.20103.3380.267484.4669.960.25116.85143.7086.5482.920.30361.58332.611.20102.4480.137581.3766.870.24117.09143.9486.5874.160.27361.74331.981.20101.5479.997666.9552.450.19117.28144.1386.6061.800.22361.88331.331.19100.6179.847756.6542.150.15117.43144.2886.6353.660.19361.98330.651.1999.6479.697850.6736.170.13117.56144.4186.6547.680.17362.07329.951.1998.6479.547944.6930.190.11117.67144.5286.6740.330.15362.15329.241.1997.6379.388035.9721.470.08117.75144.6086.6837.610.14362.21328.511.1896.5979.228139.2424.740.09117.83144.6886.6943.060.15362.27327.771.1895.5479.058246.8732.370.12117.95144.8086.7150.140.18362.35327.051.1894.5178.898353.4138.910.14118.09144.9486.7355.590.20362.45326.351.1793.5278.748457.7743.270.16118.25145.1086.7556.140.20362.56325.671.1792.5478.598554.5400.14118.39145.2486.7853.410.19362.66324.991.1791.5778.44 8652.3237.820.14118.53145.3886.8051.780.19362.75324.301.1790.5978.298751.2336.730.13118.66145.5186.8250.690.18362.85323.611.1689.6178.138850.1435.640.13118.79145.6486.8449.050.18362.94322.921.1688.6377.988947.9633.460.12118.91145.7686.8647.420.17363.02322.231.1687.6477.839046.8732.370.12119.02145.8786.8845.780.16363.10321.541.1686.6677.679144.6930.190.11119.13145.9886.8943.600.16363.18320.841.1685.6677.529242.5128.010.10119.23146.0886.9141.420.15363.25320.141.1584.6677.369340.3325.830.09119.33146.1886.9239.240.14363.32319.441.1583.6677.219438.1523.650.09119.41146.2686.9437.610.14363.38318.731.1582.6577.059537.0622.560.08119.49146.3486.9536.520.13363.43318.021.1481.6476.899635.9721.470.08119.57146.4286.9635.430.13363.49317.311.1480.6376.749734.8820.380.07119.64146.4986.9734.340.12363.54316.591.1479.6176.589833.7919.290.07119.71146.5686.9833.250.12363.59315.881.1478.6076.42 9932.718.20.07119.78146.6386.99363.63315.171.13461277.5876.26根据试算得最大下泄流量为342.89m3/s（洪水流量等于泄流量，均为342.89m3/s）此时所对应的时刻为t=41.87h最大下泄流量对应库容为117.08百万m3拦洪库容为90.23百万m3同时，可得设计洪水位为82.40m 附表46附表47 附表48时间P3流量入库流量入库洪量累积入库洪量水库水量水库水位平均流量平均洪量泄流能力平均泄流能力平均泄洪量泄流后库容泄流后水位Δt＝1hm3/sm3/s百万m3百万m3百万m3mm3/s百万m3m3/sm3/s百万m3百万m3m05.700.000.000.0026.8568.3816.650.000.000.0026.8568.3826.650.000.000.0026.8568.3837.600.000.000.0026.8568.38414.250.000.000.0026.8568.38521.857.350.030.0326.8868.38632.3017.800.060.0926.9468.39752.9238.420.140.2327.0868.42 873.5359.030.210.4427.2968.45994.1779.670.290.7327.5868.4910129.00114.500.411.1427.9968.5611167.70153.200.551.6928.5468.6412220.59206.090.742.4329.2868.7613296.70282.201.023.4530.3068.9214335.40320.901.164.6031.4569.1015408.93394.431.426.0232.8769.3216432.15417.651.507.5334.3869.5517466.98452.481.639.1636.0169.8018606.24591.742.1311.2938.1470.1319745.50731.002.6313.9240.7770.5420702.90688.402.4816.4043.2570.93 21670.95656.452.3618.7645.6171.2922649.65635.152.2921.0547.9071.6523624.09609.592.1923.2450.0971.9924624.09609.592.1925.4452.2972.3325947.85933.353.3628.8055.6572.85261224.751210.254.3633.1560.0073.53271437.751423.255.1238.2865.1374.33281714.651700.156.1244.4071.2575.28291948.951934.456.9651.3678.2176.36302130.002115.507.6258.9885.8377.54y=4.5167x-29.289x<88m312257.802243.308.0867.0593.9078.80y=489.5x-43117x>88m322406.902392.408.6175.67102.5280.14（开始泄流）332470.802456.308.8484.51111.3681.512364.308.51338.88341.431.23111.3681.51 342257.802243.308.0892.58119.4382.772140.657.71343.99346.261.25118.6482.64352023.502009.007.2399.82126.6783.891931.916.95348.52350.521.26125.1083.65361840.321825.826.57106.39133.2484.911729.566.23352.52354.261.28130.8084.53371618.801604.305.78112.17139.0285.811512.305.44355.99357.451.29135.7585.30381405.801391.305.01117.17144.0286.591360.014.90358.91360.181.30139.9085.95391314.211299.714.68121.85148.7087.321157.664.17361.44362.451.30143.5086.51401001.10986.603.55125.40152.2587.87849.513.06363.45364.061.31146.3786.9541697.92683.422.46127.86154.7188.25546.331.97364.67364.901.31148.1187.2242394.74380.241.03128.89155.7488.41379.951.03365.13365.150.99148.7787.3342.50365.16350.660.63129.52156.3788.51350.280.63365.16365.150.66148.8187.3343335.40320.900.87130.39157.2488.64319.280.86365.14365.100.99148.7887.3344303.15288.651.04131.43158.2888.80297.991.07365.06364.981.31148.6687.3145292.83278.331.00132.43159.2888.96301.221.08364.89364.811.31148.4187.27 46309.60295.101.06133.49160.3489.12317.991.14364.73364.671.31148.1987.2447326.37311.871.12134.62161.4789.30336.691.21364.61364.581.31148.0287.2148347.01332.511.20135.81162.6689.48352.171.27364.54364.531.31147.9287.1949357.33342.831.23137.05163.9089.68363.141.31364.51364.511.31147.8787.1950368.94354.441.28138.32165.1789.87374.751.35364.50364.521.31147.8787.1951380.55366.051.32139.64166.4990.08377.331.36364.53364.551.31147.9087.1952374.10359.601.29140.93167.7890.28356.691.28364.56364.551.31147.9587.2053339.27324.771.17142.10168.9590.46348.301.25364.54364.521.31147.9287.1954357.33342.831.23143.34170.1990.65349.591.26364.50364.481.31147.8687.1955341.85327.351.18144.52171.3790.84333.471.20364.46364.421.31147.8187.1856325.08310.581.12145.63172.4891.01320.571.15364.38364.331.31147.7087.1657316.05301.551.09146.72173.5791.18309.601.11364.27364.211.31147.5487.1358303.15288.651.04147.76174.6191.34296.061.07364.14364.051.31147.3587.10 59288.96274.460.99148.75175.6091.49281.221.01363.96363.861.31147.1087.0760273.48258.980.93149.68176.5391.64268.970.97363.75363.641.31146.8087.0261264.45249.950.90150.58177.4391.78256.070.92363.52363.381.31146.4686.9762247.68233.180.84151.42178.2791.91239.940.86363.24363.091.31146.0886.9163232.20217.700.78152.20179.0592.03219.950.79362.93362.751.31145.6386.8464207.69193.190.70152.90179.7592.14203.820.73362.57362.371.30145.1286.7665199.95185.450.67153.57180.4292.24193.500.70362.17361.961.30144.5586.6766187.05172.550.62154.19181.0492.34177.380.64361.75361.521.30143.9486.5867167.70153.200.55154.74181.5992.43159.960.58361.28361.031.30143.2886.4768152.22137.720.50155.23182.0892.50152.220.55360.77360.511.30142.5586.3669152.22137.720.50155.73182.5892.58142.550.51360.25359.981.30141.8086.2470132.87118.370.43156.16183.0192.65129.000.46359.70359.411.29141.0286.1271125.13110.630.40156.55183.4092.71121.910.44359.12358.821.29140.1985.99 72118.68104.180.38156.93183.7892.77114.170.41358.52358.211.29139.3485.8673109.6595.150.34157.27184.1292.82107.720.39357.90357.591.29138.4685.7274105.7891.280.33157.60184.4592.87103.850.37357.27356.951.29137.5685.5875101.9187.410.31157.92184.7792.9292.880.33356.63356.301.28136.6585.447683.8569.350.25158.17185.0292.9677.400.28355.96355.611.28135.7085.307770.9556.450.20158.37185.2292.9962.950.23355.26354.891.28134.7085.147854.9540.450.15158.51185.3693.0146.950.17354.52354.141.27133.6584.987938.9524.450.09158.60185.4593.0335.150.13353.75353.351.27132.5484.808031.3516.850.06158.66185.5193.0432.780.12352.94352.541.27131.4084.638134.2019.700.07158.73185.5893.0537.530.14352.13351.741.27130.2584.458240.8526.350.09158.83185.6893.0643.700.16351.34350.951.26129.1284.278346.5532.050.12158.94185.7993.0848.450.17350.56350.181.26128.0184.108450.3535.850.13159.07185.9293.1048.930.18349.80349.421.26126.9283.93 8547.5033.000.12159.19186.0493.1246.550.17349.04348.661.26125.8483.768645.6031.100.11159.30186.1593.1445.130.16348.28347.901.25124.7583.598744.6530.150.11159.41186.2693.1544.180.16347.51347.131.25123.6683.428843.7029.200.11159.52186.3793.1742.750.15346.75346.371.25122.5783.258941.8027.300.10159.62186.4793.1841.330.15345.98345.601.24121.4883.099040.8526.350.09159.71186.5693.2039.900.14345.21344.831.24120.3882.919138.9524.450.09159.80186.6593.2138.000.14344.44344.061.24119.2982.749237.0522.550.08159.88186.7393.2236.100.13343.67343.281.24118.1982.579335.1520.650.07159.95186.8093.2434.200.12342.89342.501.23117.0882.409433.2518.750.07160.02186.8793.2532.780.12342.11341.721.23115.9782.239532.3017.800.06160.09186.9493.2631.830.11341.33340.941.23114.8682.069631.3516.850.06160.15187.0093.2730.880.11340.55340.161.22113.7481.889730.4015.900.06160.20187.0593.2829.930.11339.77339.381.22112.6381.71 9829.4514.950.05160.26187.1193.2828.980.10338.99338.601.22111.5281.549928.5014.000.05160.31187.1693.29338.21110.4081.36根据流量时间曲线查得最大下泄流量为365.16m3/s（洪水流量等于泄流量，均为365.16m3/s）此时所对应的时刻为t=42.50h最大下泄流量对应库容为148.81百万m3拦洪库容为121.96百万m3同时，可得设计洪水位为87.33m 则大坝高程为87.83m 附表49附表50'