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Scale Model Studies to Investigate the Effects of Various Stressfields on the Stability of Pillars between Mine Roadways


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Author Goharizi K G, Terezopoulos N G, Smith S F


This paper discusses experimental results of physical scale models employed to study the stability of a pillar between rectangular roadways. A programme of laboratory investigations utilising a bi-axial test rig has been undertaken to examine the influence of various stressfields on the stability of pillars between mine roadways. The effect of pillar height/width ratio on the overall stability is studied. Observations of failure characteristics in and around pillars are discussed especially in relation to the various stressfields applied to the models.