【摘要】 通过边界层方程积分，导出了在盲肠河段设置水平附壁射流时，动量通量沿程变化规律；并在不计阻力情况下，求出了射流段的断面平均流速关系式；通过理论分析，建立了破除异重流时孔口射流流速与水力泥沙因子之间的关系；并将设置水平附壁射流与加客水破异重流的效果进行了比较；证明了在盲肠河段一定位置设置水平附壁射流工程措施是破除异重流的一种经济有效途径更多还原

【Abstract】 By integrating the boundary layer equation, in this paper the law of change of momentum flux along the longitudinal direction in the cecum segment instituted an installation generating plane Wall jet is deduced, and an expression for mean velocity in the jet segment under ignoring the hydraulic resistance is obtained. By means of theoretical analysis, the relation between the jet velocity which is capable of eradicating density current and the hydraulic and sediment parameters is established. The effect of eradicating density current by the proposed way is compared with that by putting in a foreign water; it is proved that the proposal of eradicating density current by a plane jet is an economic and efficient method.更多还原