The preventive methods described have proved highly effective.
They comprise laying out the workings in such a way as to minimize
dangerous concentrations of ground stresses, and early elimination
by means of blasting, drilling, or water infusion. An account of
these methods as applied in German coal mines, the deepest in the
world. Contents: Rockbursts & similar phenomena; Conditions of
occurrence; Influence of rock stress; Bursting & nonbursting
coal; Long-term prevention; Direct prevention; Borehole patterns
for direct prevention; Destressing methods; Case histories.
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