大倾角松软煤层综放面实现高产高效的关键之一是端面顶煤稳定性控制。
Stability control of the head faces top-coal is one of the key techniques of realizing high production and high efficiency to coal mining in fully mechanized top-coal caving face.
该文通过事故案例分析，提出了炮采放顶煤工作面顶板控制的基本要求和预防顶板事故发生的有效措施，有一定借鉴意义。
The case of accidents, the proposed blasting mining roof caving face the basic requirements for control and prevention of incidents of roof effective measures, must learn.
讨论了放顶煤开采的采场应力场的分布规律及其对冲击地压的控制作用。
The distribution law of inner stress field and its effect on controlling underground impact pressure are discussed, when sub-level caving method is introduced.
对厚煤层采用分层与放顶煤相结合的采煤方法，既可控制导水裂缝带的发育高度，又可降低生产成本。
A coal mining method with a combination of a slicing and caving, a double benefit in control of water conducted crack zone development and in reduction of coal production cost can be obtained.
对厚煤层采用分层与放顶煤相结合的采煤方法，既可控制导水裂缝带的发育高度，又可降低生产成本。
A coal mining method with a combination of a slicing and caving, a double benefit in control of water conducted crack zone development and in reduction of coal production cost can be obtained.
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