由煤炭工业矿压中心站、常州武进安全仪器厂及支护设备专业委员会分站,于1990年10月在常州联合举办了“放顶煤开采与支护设备研讨会”。参加会议的代表有科研、设计、院校、煤机厂和生产单位的专家、教授及工程技术人员100余人。会议期间,与会代表讨论了我国70年代进行放顶煤开采以来的发展,经验总结和继续发展的几个阶段。目前全国有16个煤矿在工作面实行了放顶煤开采,其中阳泉矿务局有4个矿采用放顶煤开采,一矿 By the coal industry pressure center station, Changzhou Wujin safety equipment factory and support equipment Professional Sub-station, in October 1990 in Changzhou jointly held a “top-caving mining and support equipment seminar.” Representatives who attend the conference are more than 100 experts, professors, engineers and technicians from scientific research, design, institutions, coal-mining plants and production units. During the meeting, participants discussed the development, experience and continuous development of the caving coal mining in China since the 1970s. Currently there are 16 coal mines in the face of the implementation of caving coal mining, Yangquan Mining Bureau which has 4 mining caving coal mining, a mine