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泥石流在运动过程中如遇到障碍物会产生爬高是泥石流运动的显著特征,泥石流最大爬高计算是泥石流防护工程设计的重要参数之一。为了探究泥石流最大爬高的计算公式,分析了原有理论公式的不足,使用泥石流表面流速对最大爬高计算公式进行了新的理论推导,并通过室内模拟试验对新推导的公式进行了验证,同时结合试验结果和野外观测资料对新公式的适用性进行了讨论。试验证实,通过能量法采用泥石流表面流速推导得到的泥石流爬高计算公式较为合理,计算结果与室内试验实际测量结果较吻合,对泥石流防治工程设计参数的选取具有重要意义,可用于指导泥石流工程的防治。
Debris flow in the course of the event such as obstacles will produce climbing is a significant feature of debris flow movement, debris flow is the largest calculation of debris flow debris flow protection is one of the important parameters of engineering design. In order to explore the calculation formula of the maximum creep height of debris flow, the insufficiency of the original theoretical formula is analyzed. A new theoretical derivation of the maximum creep calculation formula is made using the surface flow velocity of the debris flow. The newly derived formula is verified through indoor simulation test. At the same time, the applicability of the new formula is discussed based on the test results and the field observation data. It is proved by experiment that the calculation formula of debris flow creep height derived from the surface flow rate of debris flow by energy method is reasonable and the calculation result is in good agreement with the actual measurement results of indoor test. It is of great significance to select design parameters of debris flow prevention and control project and can be used to guide debris flow engineering Prevention and treatment.