The orthogonal analyses show that level length in bucket and the anti-erosion power of river bed are important factors for controlling scour hole depth.

• 文中对冲刷坑水深计算式采用正交分析计算表明,戽内水平长度与河床抗冲能力是控制冲刷坑水深的主要因素,在应用时需过细论证,才可获得满意的防冲效果。