The location of a hydraulic jump is a key parameter for analysing the slab stability of the stilling basin in a sluice. A simple method to locate the toe of a hydraulic jump in sloping channels is presented. The essential idea of this method applies the interacting relationship between the sequent depth and jump length to locate a point, satisfying them both simultaneously. The implementation details and the involved sequent depth and jump length equations of this method are discussed, and verification of the method is also presented. The predicted results match well with the published test data, even for a steep sloping channel up to 45°. The method’s application in the failure analysis of a sluice sloping connecting slab is also presented briefly. It is important for the analysis to account for the static hydraulic jump effect. The proposed method can yield a key parameter for such an analysis.

水力跃迁的位置是分析闸中消水池的板稳定性的关键参数。提出了一种在倾斜通道中定位水力跃迁脚趾的简单方法。这种方法的基本思想是利用顺序深度和跳跃长度之间的相互作用关系来定位一个点，同时满足它们。讨论了该方法的实现细节以及所涉及的后续深度和跳跃长度方程，并对方法进行了验证。预测结果与已发布的测试数据非常吻合，即使在最大45°的陡峭倾斜通道上也是如此。简要介绍了该方法在闸坡连接板破坏分析中的应用。对于分析来说，考虑静态水力跳跃效应很重要。