中文摘要：

调查了颗粒之间的相互作用及岩崩碎屑流与一个障碍之间相互作用。采用光滑粒子流体动力学法（SPH）模拟了实验中观察到的颗粒流动规律,采用的本构模型是牛顿流体模型。研究表明,岩崩碎屑流的运动和堆积受到水槽倾角和挡板的影响,水槽挡板周围沿深度剖面的速度图是不均匀的,随深度变化的。数值结果与干颗粒材料的水槽流砂试验进行比较,获得了一些重要的模型参数,可用于优化高山地区防御结构尺寸的设计。

英文摘要：

This paper investigated the interaction between grains an stacle. Smooth particle hydrodynamic （SPH） was used to simulate constitutive mode/was Newton＇s fluid model. Results showed that, d between rapid rockfall debris flow and an ob- the flow law observed in experiments. The used the rockfall debris flow movement and aecumu- lation was affected by the inclination of the chute and baffle plate ; the velocity diagram around baffle plate of chute were not uniform but varied over the depth. The numerical results were compared with the chute flow experiments of the dry granular material, and some important model parameters were obtained, which can be used to optimize the design of defence structures in mountain regions.