粒子形状による粒状体の内部摩擦角の推定法

概要

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The mechanical properties of sand-like granular materials are determined from such primary characteristics of the particles as the grain materials, grain size distribution and grain shapes; or such secondary characteristics as the density, water content and skeleton structure of the comprising particles. The authors have proposed that the internal friction angles of granular materials at a certain relatlve density D* may be merely determined from the grain shapes, based on their findings that the internal friction angles of granular materials depend weakly upon the grain sizes and their gradation, under a low stress level where the breakage of particles is negligible. Relationships between the internal friction angles and the grain shapes have been established for artificially made spheres and triangular pyramids as well as rockfill materials. This paper summarizes the results of friction angles of granular materials approximately.
社団法人地盤工学会の論文
2002-05-01