Scale Model Studies To Investigate The Effects Of Various Stressfields On The Stability Of Pillars Between Mine Roadways (359d84ec-978c-4bf2-a810-72bdf384bacc)

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.