A study on the draw laws of caved ore and rock using the discrete element method

A. Jin, H. Sun, Guowei Ma, Y. Gao, S. Wu, X. Meng

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    © 2016 Elsevier LtdIsolated physical draw experiments are conducted to investigate the shape of the isolated extraction zone (IEZ) and its main influencing factors. After validating the reliability of using Particle Flow Code (PFC) for draw simulation, various numerical models are constructed to investigate the draw laws of caved ore and rock under multiple drawpoint conditions. The results show that particle size, drawpoint size and column height have negligible effects on the IEZ's shape, which is mainly controlled by mass drawn, and that the ore loss ratio decreases with increasing drawpoint size and caved ore layer height and increases with increasing drawpoint spacing.
    Original languageEnglish
    Pages (from-to)59-70
    JournalComputers and Geotechnics
    Volume80
    DOIs
    Publication statusPublished - 2016

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