METHOD OF MEASUREMENT FOR THE ANGLE OF REPOSE OF SANDS
METHOD OF MEASUREMENT FOR THE ANGLE OF REPOSE OF SANDS
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DOI：
10.3208/sandf.37.2_89
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发表时间：
1997-06
影响因子：
3.7
通讯作者：
K. Miura;K. Maeda;S. Toki
中科院分区：
文献类型：
--
作者：
K. Miura;K. Maeda;S. Toki
本文研究了砂土的休止角，并以平板上静态堆积的圆锥形散粒体堆的倾角作为典型休止角。从薄表面堆滑层的变形机理出发，解释了休止角与内摩擦角的关系。在不同粗糙度的平板上进行了一系列试验，考察了影响休止角测量的因素，包括：平板尺寸、材料浇注速率和边界摩擦效应。为了避免不利影响因素的影响，提出了一种合理的测量方法，并介绍了使用该方法的装置。
In this paper the angle of repose of sands is investigated; the slope angle of conical heaps of granular materials formed statically on a flat plate were observed as a typical angle of repose. The relationship of the angle of repose with the angle of internal friction is explained with regard of the deformation mechanism for the sliding layer of the heap on a thin surface. Some series of tests were conducted on plates with different roughness, and the factors influencing the measurement of the angle of repose were examined, including : the size, material pouring rate and boundary friction effects. In order to avoid the effects of the unfavorable influence factors, a rational method of measurement was proposed and the device for using this method is introduced.