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Abstract <p>Physical lab-scale simulation finds out that in polydisperse broken ore draw, the medium undergoes structuring which leads to the formation of a consolidated block shaped as a flaring cone. Along the side surfaces of the cone, slide zones originate as layers of small size particles. The angle of the cone generators is governed by the internal friction angle of the medium, which depends on the degree of fragmentation and on the grain size composition. An empirical formula is proposed for calculating the angle of the cone generators. The obtained results make it possible to develop an algorithm and a method for optimizing parameters of structural elements in the caving systems of mining with self-propelled machinery.</p>

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Lab Simulation of Gravity Ore Flow in Caving Systems of Mining

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • A. A. Smirnov,
  • A. A. Rozhkov,
  • K. V. Baranovskiy

摘要

Abstract

Physical lab-scale simulation finds out that in polydisperse broken ore draw, the medium undergoes structuring which leads to the formation of a consolidated block shaped as a flaring cone. Along the side surfaces of the cone, slide zones originate as layers of small size particles. The angle of the cone generators is governed by the internal friction angle of the medium, which depends on the degree of fragmentation and on the grain size composition. An empirical formula is proposed for calculating the angle of the cone generators. The obtained results make it possible to develop an algorithm and a method for optimizing parameters of structural elements in the caving systems of mining with self-propelled machinery.