Admissible Stress Fields for a Semi-infinite Planar Heap of Granular Medium Possessing Self-weight in Loose Condition

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概要

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• Linear and nonlinear stress propagations in the problem of two-dimensional symmetrical sand pile were investigated. The hyperbolic-type differential equations were formulated under the criterion of self-weight loading. This study shows that the admissible stress solution can be obtained from a wave-like equation by combining the differential equilibrium equations and the local stress conditions with the boundary conditions. Unlike linear stress propagation which appears in straight line, nonlinear stress propagation appears in smooth curves of principal stress directions which are regarded as nests of major and minor arches formed in granular media. The spatial distribution of safety factor against sliding under each closure is also presented and discussed.

著者

• HENG Sokbil

  Department of International Development Engineering, Tokyo Institute of Technology

• PIPATPONGSA Thirapong

  Global Scientific Information and Computing Center, Tokyo Institute of Technology

関連論文

• Admissible Stress Fields for a Semi-infinite Planar Heap of Granular Medium Possessing Self-weight in Loose Condition
• Granular Arch Shapes in Storage Silo Determined by Quasi-static Analysis under Uniform Vertical Pressure

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