Which underground hard rock or metal mines are currently In India facing the problem of rockburst? In India, underground min depths are increasing day by day but there is no report of rockburst, it is a surprise for Indian mining faterenity.
Mining induced seismicity increases as mine depth increases.
If anyone have information regarding rockburst in any Indian metallic mine, kindly share.
My experience comers from Canada and the rock bursts occurred at a depth of about 1.5 km below surface. In addition, the rocks involved were silicified sediments and we thought we would have no problem with softer rocks.
When you create an opening in the area where no openings occurred previously, the pressure of the rock towards the new opening is tremendous.
Experts came and studied, suggested rock bolts, but eventually the area was abandoned since one miner died during a rock burst phenomenon.
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