溢洪道水面线及边墙高度计算

下泄流量Q（m3/s）底宽（m）单宽流量q(m2/s)两侧坡比m一级陡槽底坡i16.003.002.000.000.09正常水深计算Q(m3/s)h0(m)过水断面面积A（㎡）谢才系数C湿周χ6.000.290.8846.533.59α单宽流量q(m2/s)g临界水深hk1.052.009.810.75水面线类型判别h0hk0.290.75断面桩号⊿shAV1.080.780.582.655.577.7010.330+0000+0100+0270+03910.0016.6012.000.750.36溢洪道特征参数临界水深计算流态及水面线类型为急流,水面线为aⅡ型雍水曲线。0.260.192.2632gaqhkα—5计算边墙高度（H）：ha—⊿—4～438.600.193～326.600.262～210.000.361～100.75断面陡槽距离(L)计算水深(h)系数，α=1.0～1.3计算公式：H=ha+⊿掺气后水深，安全超高，一般为0.5～1.5米。陡槽掺气后水深及边墙高度4计算掺气后的水深（ha）：计算公式：ha=h(1+αV/100)二级陡槽底坡i2设计底板高程（m）设计水位（m）堰上水头H（m）糙率n0.2163.9565.101.150.017i水力半径R0.090.24v2/2g(m)Es⊿EsXR0.501.501.501.500.831.342.364.510.720.520.390.361.583.025.441.111.943.285.64溢洪道特征参数32gaqhk0.1910.330.020.267.700.020.365.570.020.752.650.03计算水深(h)流速(v)掺气增加水深(hv)系数，α=1.0～1.3H=ha+⊿掺气后水深，安全超高，一般为0.5～1.5米。陡槽掺气后水深及边墙高度ha=h(1+αV/100)CJi-J⊿s'⊿s-⊿s'水面线64.7063.4362.7561.6210.0016.6012.000.000.000.000.0050798720.0074087950.0136785710.0829201280.0805912050.19632142952.4362.9462.9462.940.720.220.880.280.780.38边墙高（H）0.781.28掺气后水深（ha）陡槽掺气后水深及边墙高度