公式(复式断面过流计算)糙率:n10.025糙率:n20.025边坡系数:m10边坡系数:m22水深(m)h11.1水深(m):h23.07纵坡:J0.003下底宽(m):b2(左滩)0.5下底宽(m):b3(右滩)0.5下底宽(m):b1(下底宽)25上口宽1(m):B1=b1+2m1h125上口宽2(m):B2=b1+2m1h1+2m2h2+b2+b338.28左滩顶水位宽b2’(m)b2’=B2-b3-h2m2-B16.64右滩顶水位宽b3’(m)b3’=B2-b2-h2m2-B16.64面积(m2):A=(b1+m1h1)h1+B1h2+1/2(b2+b2’)h2+1/2(b3+b3’)h2126.1698湿周(m):X=b1+2h1(1+m12)1/2+b2+L1+b3+L241.92945738左滩边水线L1=((b2’-b2)2+h22)^0.56.864728691右滩边水线L2=((b3’-b3)2+h22)^0.56.864728691水力半径R=A/X3.009096895谢才系数(m1/2/s):C=1/nR1/6简化取综合糙率n=0.02648.05819527流速(m/s):V=C(RJ)1/24.566107914流量(m3/s):Q=AC(RJ)1/2576.1049223B2b2’b3’L1n2B1m2L2h2b2n1b3m1h1b148.058195274.566107914576.1049223
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