【摘要】 本文介绍了大采高综采工艺及设备的历史及国内现状、工作面合理采高、工作面长度及推进度、煤壁片帮及防治 ,液压支架防倒与防滑等。更多还原

【Abstract】 The paper introduces the history and present conditons of the crafts and equipments in high mining height longwall mining in china.The author illustrates resonable mining high,lenghth and strike distance of face,slices drop of wall and it’s defence and management,control of pour and slip of porps and so on.更多还原