给出了一个实用、有效的曲面急变流水面线及床面压力的计算方法。经理论分析 ,充分考虑了曲率、水流重力等因素的影响 ,建立了水流的连续方程和动量积分方程 ,应用四阶龙格库塔求解 ,得出其水深、压强和流速值。计算结果表明 ,计算值与实测值吻合良好。 A practical and effective method for calculating the abrupt surface flow and bed pressure is given. Based on the theoretical analysis, the effects of curvature, gravity and other factors are fully considered. The continuous equation and momentum integral equation are established. The fourth-order Runge-Kutta solution is used to obtain the water depth, pressure and velocity. The calculation results show that the calculated value is in good agreement with the measured value.