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时间:2019-07-30
《《洪水调节课程设计》设计说明书》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、《洪水调节课程设计》设计说明书1、根据工程规模和建筑物的等级,确定相应的洪水标准:大米山水库是小(一)型水库,挡水建筑物是浆砌石重力拱坝,则可确定其设计洪水标准的频率为3.33%,校核洪水标准的频率为0.5%。2、设计洪水调洪演算:2.1用列表试算法进行调洪演算2.1.1计算并绘制V-Z线,q-V线,q-Z线表一水库水位容积关系及水库q=f(V)关系曲线计算表水位Z(m)库容V(万m3)溢洪道堰上水头Hw(m)流量系数m溢洪道泄量q(m3/s)224.94000226.371000227.051500227.21600227.93220.730.43664.27987217228.3
2、251.10.436118.8994216228.88301.680.436224.4164235229.44352.240.438222222347.2727045229.98402.780.452925926496.247806230.49453.290.465111111656.0769599230.98503.780.476826.8921661231.46554.260.4848888891007.768678231.91604.710.4917777781188.240869232.35655.150.4977592591375.100424232.77705.570.5
3、028888891562.640435233.18755.980.5072222221753.29209233.58806.380.5094444441940.582335233.97856.770.5116111112130.23343234.35907.150.5132318.358814234.72957.520.5132500.623746235.081007.880.5132682.322029235.441058.240.5132868.219656其中:起调水位为227.2m,此时库容根据内插法算出为16万m3,流量系数由内插法算得,下泄流量由水力学公式算出。2.1.2
4、列表试算起调水位是227.2m,从0时开始计算,此时q1=0,V1=16万m3表二设计洪水下泄流量列表试算计算表t(h)入库洪水流量Q(m3/s)时段平均入库流量Q-(m3/s)时段入库水量(万m3)下泄流量q(m3/s)时段平均下泄流量q-(m3/s)时段下泄水量q-△t(万m3)时段内水库的存水量变化△V(万m3)水库的存水量(万m3)水库水位Z(m3)09.6010.703.8507.052.541.3216.00227.20111.8014.0917.32227.36223.3017.556.3218.6516.375.890.4317.74227.41348.8036.05
5、12.9841.5730.1110.842.1419.88227.67486.3067.5524.3277.6759.6221.462.8622.74228.025132.00109.1539.29126.14101.9136.692.6125.34228.346182.20157.1056.56175.15150.6554.232.3227.67228.617248.50215.3577.53239.23207.1974.592.9430.60228.958345.60297.05106.94333.55286.39103.103.8434.44229.389521.00433.3
6、0155.99501.30417.42150.275.7240.16230.0010888.00704.50253.62849.55675.42243.1510.4750.63231.04111300.601094.30393.951274.201061.87382.2711.6762.30232.11121556.901428.75514.351543.381408.79507.167.1969.49232.7312.51572.251564.58281.621576.131559.76280.760.8770.35232.80131587.601579.93284.391582.
7、011579.07284.230.1570.51232.8113.51515.701551.65279.301535.101558.55280.54-1.2469.27232.71141443.801479.75266.361449.701492.40268.63-2.2866.99232.52151206.601325.20477.071232.891341.29482.87-5.7961.19232.0216958.701082.65389.75972
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