• The distribution law of inner stress field and its effect on controlling underground impact pressure are discussed, when sub-level caving method is introduced.

    讨论放顶煤开采采场应力场分布规律及其冲击地压的控制作用

    youdao

  • The distribution law of inner stress field and its effect on controlling underground impact pressure are discussed, when sub-level caving method is introduced.

    讨论放顶煤开采采场应力场分布规律及其冲击地压的控制作用

    youdao

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