消力池深、长计算

堰流,设计流量,过流净宽,上游水位,上游底高程,下游水位,下游底高程,,,

,1307.7,66,103.46,98.3,102.2,98.29,,,

,,,,,,,,,,

,,最大流速v,9.238349011,,,,,,

,,消力池深度d,,1.043037162,,,,,

,,水跃淹没系数σ。（1.05-1.10）,1.1,,,,,,

,,跃后水深hc″,,5.129903877,,,,,

,,收缩水深hc,2.144716154,2.144716154,0.000584666,0,,,

,,下游河床水深hs′,3.91,,,,,,

,,水流动能校正系数α（1.0-1.05）,1,,,,,,

,,单宽流量q,19.81363636,,,,,,

,,消力池首端宽度b1,66,,,,,,

,,消力池末端宽度b2,66,,,,,,

,,上游总能头T。,,6.964538867,,,,,

,,上游行进流速V,3.839852008,,,,,,

,,流速系数ψ,0.95,,,,,,

,,出池水位落差⊿Z,,0.689857103,,,,,

,,消力池长度Lsj,,17.86041261,,,,,

,,消力池斜坡段水平投影长Ls,3.03,,,,,,

,,水跃长度校正系数β(0.7-0.8),0.72,,,,,,

,,水跃长度Lj,,20.59779529,,,,,

,说明：绿色方格需手动输入数据，试算E8，当F8≈G8，然后带入黄色方格内,,,,,,,,

,抗冲要求,消力池底板计算系数k1（0.15-0.20）,0.15,,,,,,

,,消力池底板始端厚度t,0.947676153,,,,,,

,抗浮要求,消力池底板安全系数k2（1.1-1.3）,1.2,,,,,,

,,消力池底板面得扬压力U（kPa）,220.5186908,,,,,,

,,作用消力池底板顶面的水重W(kPa),540.6986437,,,,,,

,,作用消力池底板上的脉动压力Pm,458.6341078,,,,,,

,,消力池底板的饱和重度（kN/m³）,24,,,,,,

,,消力池底板始端厚度t,-38.94070304,,,,,,

渠道正常水深,,水深h,3.582126994,,渠底宽b,左边坡m1,右边坡m2,糙率n,渠道比降i

,,过水断面ω,227.6629712,,61.2,1.315,0,0.025,0.003333333

,,湿周X,70.69993197,,,,,,

,,水力半径R,3.22012999,,,,,,

,,谢才系数C,48.60775449,,,,,,

,,过水流量,1146.49993,,,,,,

,说明：若已知流量Q求水深h，采用试算法即可,,,,,,,,

孔流,,计算系数λ,0.4,,闸孔开度he,上游水深H,下游水深hs,流速系数Φ,孔口导流半径r

,,垂直收缩系数ε′,0.61305503,,0.18,2.83,3.582126994,0.95,0

,,流量系数μ,0.570934601,,行近流速V,σ′线性内插值,,闸孔净宽B。,计流速上游水深

,,收缩水深hc,0.110349905,,6.138237125,0.509583502,,66,4.750385066

,,收缩断面流速Vc,11.50096892,,,,,,

,,跃后水深hc″,1.670754095,,Z,σ′,Z,σ′,

,,比值Z=（hs-hc″)/(H-hc″),1.6488,,≤0,1,0.8,0.36,

,,淹没系数σ′,0.509583502,,0.1,0.86,0.9,0.23,

,,过闸流量Q,33.36814564,,0.2,0.78,0.92,0.19,

,,,,,0.3,0.71,0.94,0.16,

,说明：线性内插值依据黄色数据和表格手动计算,,,,0.4,0.66,0.96,0.12,

,,,,,0.5,0.59,0.98,0.07,

,,,,,0.6,0.52,0.99,0.04,

,,,,,0.7,0.45,0.995,0.02,

,,,流量Q,,,,,,

,,,1600,,,,,,

,,假定水位过流量Q,1599.999942,,,,,,

,,总净宽B（m）,72,,,,,,

,,堰顶高程（m）,44.5,,,,,,

,,堰前水深H（m）,6.160411518,,,,,,

,,堰前水位Z（m）,50.66041152,,,,,,

,,上游行进流速V。,3.167352548,,,,,,

,,计流速的堰前水头H。,6.67173273,,,,,,

,,自由溢流的流量系数m,0.36,,,,,,138

,,侧收缩系数σc,0.93,,,hs/H,σs,,

,,淹没系数σs,0.935,,,0<=0.80,1,,

,,下游水位,50.29,,,0.81,0.995,,

,,hs,5.79,,,0.82,0.99,,

,,hs/H,0.86784052,,,0.83,0.98,,

,,翻板门系数,0.93,,,0.84,0.97,,

,,,,,,0.85,0.96,,

,,,,,,0.86,0.95,,

,,,,,,0.87,0.93,,

,,,,,,0.88,0.9,,

,,,0.833333333,,,0.89,0.87,,

,,,0.878333333,,,0.9,0.84,,

,,,,,,0.91,0.82,,

,,