摘要
通过现场实测,对神东矿区活鸡兔井三盘区在沟谷地形下浅埋煤层工作面采动发生的动载矿压现象进行了研究和理论分析,结果表明:浅埋煤层工作面在不同地形下矿压显现的强烈程度存在明显差异,在地形为非沟谷地段、沟谷下坡段和沟底,工作面周期来压末阻力多数小于11000 kN,没有发生强烈的矿压显现;而在沟谷上坡段,工作面周期来压末阻力最大为11892 kN,发生多起强烈的矿压显现。
By the use of field measurements and theoretical analysis,the paper thoroughly analyses dynamic strata pressure of the shallow coal seam mining face happening in hilly and gully terrains in panel 3 of Huojitu Coal Mine in Shendong mine area.The results show that strata behavior intensities of shallow coal seam mining faces in different terrains are significantly different.For instance,there was no dynamic strata pressure behavior in the straight terrain and bosom of trench as well as downhill sections of hilly and gully terrain,with terminal resistances of periodic weighting of respectively less than 11000 kN,while the biggest terminal resistance of periodic weighting was 11892 kN in the uphill sections of hilly and gully terrains,and many strong strata pressure behaviors.Thus,hilly and gully terrains have remarkable influence on strata behavior of shallow coal seam mining faces.
出处
《中国煤炭》
北大核心
2011年第6期55-58,76,共5页
China Coal
基金
国家自然科学基金资助项目(50974116)
中国矿业大学煤炭资源与安全开采国家重点实验室开放研究基金资助项目(08KF04)
关键词
沟谷地形
浅埋煤层
工作面矿压规律
周期来压
hilly and gully terrain
shallow coal seam
strata behaviors of working face
periodic weighting
