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Mining Publication: Comparison of Ore Pass Computer Simulations for Designs Against Dynamic Load

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Original creation date: February 2003

Image of publication Comparison of Ore Pass Computer Simulations for Designs Against Dynamic Load

Rock hang-ups are a problem in ore pass operations. Rock flows through an ore pass by gravity but hang-ups can occur due to bridging of larger rock particles. Hang-ups also occur if cohesive fine rock particles are present. The result is a production stoppage, where secondary blasting or other relief is required where human safety is at risk. Existing ore pass design criteria rules-of-thumb using current particle flow equations are reviewed and a comparison of two computer modeling programs, Working Model (WM 2-D) and PFC2d, to simulate rock flow are investigated.

Authors: SR Iverson, SJ Jung, K Biswas

Conference Paper - February 2003

NIOSHTIC2 Number: 20024077

Annual meeting of the Society for Mining, Metallurgical, and Exploration, Inc., Cincinnati, OH, Feb. 26-28, 2003, preprint 03-157, SME, Littleton, CO. 2003 Feb; :11 pp


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