Page 316 - Rock Mechanics For Underground Mining
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ENERGY, MINE STABILITY, MINE SEISMICITY AND ROCKBURSTS
Figure 10.20 Elastic/post-peak
stiffness ratios, for rock specimens
and model pillars (after Brady and
Brown, 1981).
Figure 10.21 Variation of pillar sta-
bility index with pillar width/ height
ratio (after Brady and Brown, 1981).
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