• By using this method, the damage of surface gas drainage holes caused by induced excessive mining displacement can be effectively reduced if not being avoided.

    采用提出计算方法可避免由于受采动影响地表瓦斯抽放钻孔引起的过大变形及其所造成破坏

    youdao

  • The main factors effecting of slipping area along the bed rock and roof separation and failure area and the major avenue of damage surrounding rock caused by mining are analyzed in this paper.

    分析影响沿底座顶板离层破坏区破坏主要因素及其损害传递的途径

    youdao

  • The main factors effecting of slipping area along the bed rock and roof separation and failure area and the major avenue of damage surrounding rock caused by mining are analyzed in this paper.

    分析影响沿底座顶板离层破坏区破坏主要因素及其损害传递的途径

    youdao

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