Dynamic Simulation Method for Hard-Rock Pillar Failure in Open-Stope Goaf

Abstract:

An attempt to simulate the cascading pillar collapse is made in this paper for a quick evaluation of a large number of mined-out area data that have been collected throughout China. Pillar collapse, load transfer and load redistribution are modeled by the area-apportioned method, and this methodology is general in sense and has been implemented in the expert system developed by the authors as an independent module. The proposed method can provide a quantitative criterion for determination of the failure pattern and identification of the key pillars in the stability analysis of the mined-out area formed by a pillar-room method.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 4055-4060
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.4055
• Online since: May 2014
• Authors: Hai Tao Ma*, Jin An Wang
• Keywords: Dynamic Simulation, GOAF, Pillar Failure, Voronoi Chart

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