摘要
以潞安集团阜生煤业保护层开采为研究背景,通过对阜生煤业工程概况和地质条件分析,采用UDEC数值模拟对开采上覆14号煤层作为保扩层的可行性和必要性进行研究,主要研究指标为下伏15号煤层的岩层位移和膨胀率等指标。结果表明:被保护层的膨胀率达到了3‰,满足《防治煤与瓦斯突出规定》中的相关规定,可以达到较好的防突效果。该研究为阜生煤业实施上保护层开采作为防突措施的可行性提供了理论支撑,同时也保障了矿井安全生产。
Taking Fusheng Coal Mine of Lu＇an Group as engineering background to research the feasibility and protective effect of close distance upper protective layer mining,namely mining 14 号 coal seam as protective seam,use UDEC numerical calculation program to simulate the expansion ratio of protected 15 号 coal seam through building similar model. The results show that the expansion ratio reaches 3‰,meeting the relevant standard of prevention and control of coal and gas outburst,which provide great practical support for Fusheng Coal Mine to take upper protective layer mining as its outburst prevention technique measure and adopt advanced support,and it also guarantees its safety mining.
出处
《煤》
2017年第10期10-12,32,共4页
Coal
关键词
保护层开采
UDEC数值模拟
膨胀率
protective layer mining
UDEC numerical simulation
safety mining
