库水位Z(m)4045505560库容V(106m3)03.07.013.022.0时间t(h)012243648流量Q(m3/s)0102396204130库水位Z(m)165666871堰顶水头H(m)20136泄流能力q(m3/s)3654255.42711.45库容V(106m3)443475566时间t(h)时段△t(h)Q(m3/s)(Q1+Q2)/2(m3/s)(Q1+Q2)△t/2(106m3)q0061212102512.2018.896241239624910.76157.5895361220430012.96267.56948121301677.21188.6046012801054.54127.92772124562.52.7084.58684123037.51.6256.386961210200.8636.8810812050.2222.0205某水库调洪计算表(列表试算法)(2)列表计算q-V曲线在堰顶高程65m之上,假设不同库水位Z列于表3中,用它们分别减去堰顶高程65m,得到堰顶水头H(1)绘制Z-V曲线按表1所给的数据,绘制库容曲线Z-V(图1)表1水位容积关系表2设计洪水过程线假定洪水到来时,水位刚好保持在溢洪道堰顶,即起调水位为65m取计算时段△t=12h。某水库调洪计算表(列表试算法)这个表格不需要,主要是为了让大家看清楚,只要第二个正确的表格就够了!4.推求下泄流量过程线q(t)表3某水库q-V曲线关系计算表3.绘制q-V曲线由表3中第(3)(4)栏值,绘制该水库的蓄泄曲线q-V(图2)q堰=m1*B*H3/2=1.6*30*H3/2=48H3/2从而算出各H相应的溢洪道泄流能力,加上发电流量6m3/s,得Z值相应的水库泄流能力q=q堰+q电列于表3(3)中,再由(1)的Z值查图Z-V曲线,得Z值相应的库容V,列于表3(4)中。时间t(h)时段△t(h)Q(m3/s)(Q1+Q2)/2(m3/s)(Q1+Q2)△t/2(106m3)q0061212102512.2018.896241239624910.76157.589532.3828.382261.888328.9449.93261.89363.618204232.9443.03252.11348121301677.21185.8286012801054.54127.372124562.52.7084.41284123037.51.6256.327961210200.8636.85710812050.2222.011由Vm值从图2的Z-V线上查得Z设=68.05m5.正确的下泄流量过程线6.推求设计防洪库容V设设计洪水位Z设下泄流量最大值=261.888m3/s,由此从图2查得相应的总库容Vm=55.3×106m3,减去堰顶高程以下的库容43×106m3,即得V设=12.3×106m3,050100150200250300350400450020406080Q,q(m3/s)图4下泄流量曲线6570758043.063.0769660728496108804530100758010151523.892794.557696(q1+q2)/2(m3/s)(q1+q2)△t/2(106m3)V(106m3)Z(m)q计算误差436512.450.5444.765.41618.8957690.00023188.243.8151.667.153157.589130.000373212.589.1855.468.097267.56918-0.00018228.099.8552.767.437188.60435-0.00035158.276.8450.466.862127.926937.33E-05106.264.5948.666.38984.586369-0.0003770.493.0447.166.03356.38550.000546.632.0146.065.74536.8797740.00022629.451.2744.965.48122.020694-0.00019某水库调洪计算表(列表试算法)(2)列表计算q-V曲线在堰顶高程65m之上,假设不同库水位Z列于表3中,用它们分别减去堰顶高程65m,得到堰顶水头H(1)绘制Z-V曲线按表1所给的数据,绘制库容曲线Z-V(图1)表1水位容积关系表2设计洪水过程线假定洪水到来时,水位刚好保持在溢洪道堰顶,即起调水位为65m某水库调洪计算表(列表试算法)这个表格不需要,主要是为了让大家看清楚,只要第二个正确的表格就够了!表3某水库q-V曲线关系计算表3.绘制q-V曲线由表3中第(3)(4)栏值,绘制该水库的蓄泄曲线q-V(图2)q堰=m1*B*H3/2=1.6*30*H3/2=48H3/2从而算出各H相应的溢洪道泄流能力,加上发电流量6m3/s,得Z值相应的水库泄流能力q=q堰+q电列于表3(3)中,再由(1)的Z值查图Z-V曲线,得Z值相应的库容V,列于表3(4)中。35404550556065707580850102030405060708090100110水位Z(m)容积V(万m3)图1某水库水位-容积关系曲线05001000150020002500300040泄流能力q(m3/s)(q1+q2)/2(m3/s)(q1+q2)△t/2(106m3)V(106m3)Z(m)q计算误差436512.450.5444.765.41618.8957690.00023188.243.8151.667.153157.589130.000373209.746.3355.268.052261.90209-0.01209257.003.3554.967.973252.112520.00048218.979.4652.667.412185.826870.001129156.566.7650.466.855127.298920.001079105.864.5748.566.38784.4105460.00145470.373.0447.166.03256.3259110.00108946.592.0146.065.74536.8566730.00032729.431.2744.965.48122.0108960.000104由Vm值从图2的Z-V线上查得Z设=68.05m6.推求设计防洪库容V设设计洪水位Z设下泄流量最大值=261.888m3/s,由此从图2查得相应的总库容Vm=55.3×106m3,减去堰顶高程以下的库容43×106m3,即得V设=12.3×106m3,100120t(h)110(万m3)404550556065707580859095100库容V(106m3)图2水库的蓄泄曲线q-V