论文部分内容阅读
根据鹤壁三矿炮采全层放顶煤工作面的实践，阐述了顶板瓦斯排放巷在释放瓦斯方面的原理和作用，并提出了实践中应注意的问题
According to the practice of fully-mechanized top coal caving mining face in Hebi CBM mine, the principle and function of roof gas discharge roadway in releasing gas are expounded and some problems that should be noticed in practice