The magmatic rock intrudes relative seriously in Wangying Colliery, rock-burst and gas outburst mainly take place near igneous rock wall.

 
  • 摘要王營(yíng)煤礦的巖漿巖侵入比較嚴重,沖擊礦壓和瓦斯突出多發(fā)生在火成巖墻附近。
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