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名称水深h（m)底宽b(m)边坡系数m底坡i（小数计）渠道糙率（小数计）面积A（㎡）湿周x（m)水力半径R（m）梯形公式hbmin(b+mh)hb+2h(1+㎡）^1/2A/x断面11.310.50.00670.032.1453.9070.549断面21.11.510.000250.0252.864.6110.620断面31.11.510.000250.0252.864.6110.620名称水深h（m)圆形直径d(m)圆周弧度θ底坡i（小数计）渠道糙率（小数计）面积A（㎡）湿周x（m)水力半径R（m）圆形公式hdθin(d^2)(θ-sinθ)/8θ*d/2d(1-sinθ/θ)/4断面11.11.50.50.000250.0250.0060.3750.015断面21.11.50.50.000250.0250.0060.3750.015断面31.11.50.50.000250.0250.0060.3750.015梯形过水断面明渠均匀流的水力计算圆形过水断面明渠均匀流的水力计算水面宽度B（m)流速v（m/s）流量Q（m³/s)谢才系数C流量模数Kb+2mh(R^2/3*i^1/2)/nv*AR^(1/6)/nA*C*(R^(1/2))2.31.8293.92430.16347.9413.70.4601.31636.93983.2003.70.4601.31636.93983.200水面宽度B（m)流速v（m/s）流量Q（m³/s)谢才系数C流量模数K2*(h(d-h))^(1/2)(R^2/3*i^1/2)/nv*AR^(1/6)/nA*C*(R^(1/2))1.3270.0390.00019.9580.0141.3270.0390.00019.9580.0141.3270.0390.00019.9580.014梯形过水断面明渠均匀流的水力计算圆形过水断面明渠均匀流的水力计算