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首页> 外文期刊>Bulletin of engineering geology and the environment >Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense
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Calculation of the separation grid design length in a new water-sediment separation structure for debris flow defense

机译：一种新型水沙分离结构中泥石流防御工段的设计长度计算

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A new water-sediment separation structure with a herringbone separation grid has been developed for debris flow defense. Previous model experiments showed that, compared to existing structures, this structure can continuously maintain its water-sediment separation function. However, in the structure design, the length of the separation grid is key to its success in separating water and sediment. This paper presents a theoretical formula for calculating the design length of the grid. The theoretical formula shows that the grid length relates to the debris flow velocity v (x), the grid width B, and the grid incline angle theta. A series of model experiments were conducted in the laboratory to test the accuracy of the formula. The results show that the experimental value and the theoretical value for grid length form a linear relationship and the design length of the grid may be corrected by a coefficient. Further analysis indicates that the correction coefficient changes with the bulk density of debris flow. Finally, a formula for determining the grid design length is derived from the theoretical formula, corrected using a coefficient related to the bulk density of a debris flow.
机译：为了防止泥石流，开发了一种新的带有人字形分隔网格的水沙分离结构。先前的模型实验表明，与现有结构相比，该结构可以连续保持其水沙分离功能。然而，在结构设计中，分离格栅的长度是其成功分离水和沉积物的关键。本文提出了计算网格设计长度的理论公式。理论公式表明，网格长度与泥石流速度v（x），网格宽度B和网格倾斜角θ有关。在实验室中进行了一系列模型实验，以测试配方的准确性。结果表明，网格长度的实验值与理论值之间存在线性关系，可以通过系数对网格的设计长度进行修正。进一步分析表明，修正系数随泥石流堆积密度的变化而变化。最后，从理论公式中得出确定网格设计长度的公式，并使用与泥石流堆积密度有关的系数进行校正。

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