The hydrodynamic characteristics of the overland flow with a geocell slope are different from those of traditional flows because of its special structure. In this paper, a hydraulic flume with different slope gradients is used to study the hydrodynamic characteristics of the overland flow with geocell. The differences of flow characteristics between the overland flow with the geocell slope and the traditional flows are studied, and the hydrodynamic characteristics are obtained, including the flow pattern, the flow velocity and the hydraulic friction factor for the slope flow with geocell under different flow rates and slope gradients. The results show that there is a positive power function relationship between the rill depth of the slope surface (h) and the drag coefficient of the Darcy Weisbach (f). There is a positive logarithmic function relationship between the drag coefficient f and the Reynolds number Re _d , and there is a negative power function relationship between the drag coefficient f and the Froude number Fr.

中文翻译：

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土工格室地表水动力特性试验研究

具有土工格坡度的陆上水流的水动力特性由于其特殊的结构而不同于传统水流。本文采用不同坡度的水力水槽研究了土工格室的地表水动力特性。研究了具有土工格室边坡的陆上水流与传统水流之间的流动特性差异，获得了不同流速下土工格室边坡流的水动力特性，包括流型，流速和水力摩擦系数。和坡度渐变。结果表明，坡面的钻孔深度（h）与Darcy Weisbach（达西）的阻力系数呈正幂函数关系。f）。阻力系数f与雷诺数Re _d之间具有正对数函数关系，阻力系数f与Froude数Fr之间具有负幂函数关系。