由煤炭科学研究院北京开采所与中国矿业大学采矿研究所负责,东北工学院,徐州矿务局等十六个单位参加的“我国缓倾斜、倾斜煤层回采巷道围岩稳定性分类”课题经过4年努力,于1987年12日23日通过部级鉴定。制定回采巷道围岩稳定性分类方案是我国煤炭生产建设急需的工作。这个分类方案先进,合理可行。既有普遍的实用价值,又有重要的学术意义。它是制定巷道设计规范、巷道支护规程的根据之 By the Beijing Institute of Coal Mining and Mining Research Institute of China University of Mining is responsible for the Northeast Institute of Technology, Xuzhou Mining Bureau and other units to participate in the “China’s gently inclined, inclined seam mining roadway stability classification of the surrounding rock” subject to 4 Years of hard work, in 1987 on the 23rd passed ministerial appraisal. Development of roadway surrounding rock stability classification scheme is an urgent need for coal production in China. This classification scheme is advanced, reasonable and feasible. Both universal practical value, but also important academic significance. It is to formulate roadway design specifications, roadway support rules based on it