无支护开采工作面的设计与管理

Design and Management for the Working Face Without Supporting

新汶矿业集团张庄煤矿在铁路桥下开采中 ,采用无支护扒装技术 ,已安全回采 6个工作面 ,采出铁路桥下压煤 40余万t。较好地解决了坚硬顶板难放顶、大采高煤层一次采全高、条带开采效率低等难题 。

Zhangzhuang Coal Mine in Xinwen Mining Area uses the mining technology without supporting to extract the coal under railway bridge.400,000t coal has been mined out from 6 working faces. It solves the problem of the hard roof, full height mining,low efficiency.