伪倾斜整体顶梁悬移支架放顶煤工艺应用研究  

Research on Application of Combined Suspension Support with Whole Roof Beam in Pseudo Inclined Seam with Top Coal Caving Mining

作　　者：璩世杰[1] 吴星辉[1,2] 胡学龙[1] 秦宏楠 蒋晓琴[1,2] QU Shi-jie WU Xing-hui HU Xue-long QIN Hong-nan JIANG Xiao-qin(College of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China China Academy of Safety Science and Technology, Beijing 100012, China)

机构地区：[1]北京科技大学土木与资源工程学院,北京100083 [2]中国安全生产科学研究院,北京100012

出　　处：《煤炭技术》2017年第5期260-262,共3页Coal Technology

摘　　要：为了解决新疆拜城大宛其煤矿生产中原伪倾斜柔性掩护支架采煤法生产能力不足等问题,根据其煤层赋存情况和地质条件,对伪倾斜整体顶梁悬移支架放顶煤采煤工艺进行了研究。在A5主采煤层中应用该工艺,工作面伪倾斜布置,并安装整体顶梁组合悬移支架。采用爆破法推进工作面,每推进3个循环,进行1次放顶煤。现场试验的结果表明,该工艺对煤层厚度变化适用性较强,回采效率显著提高,工作面的生产能力达到了设计要求的35万t/a。Mining method with pseudo inclined flexible shield support was used in Dawanqi coal mine of Baicheng in Xinjiang province and was found it hard to keep the production capacity of the designed level. In order to solve the problem, the mining method of combined suspension support with whole roof beam in pseudo inclined seam with top coal caving mining was studied and applied in the working face of main coal seam A5 according to the geological conditions. In experiment conducted the working face of main coal seam A5 were arranged in pseudo inclined mode and the combined suspension support with whole roof beam were installed. The working face advances by blasting and the top coal was caved after every three blasts. Results of field test demonstrate that the mining method can better adapt to changes in the thickness of the coal and significantly improve the recovery rate. After using the mining method, the working face of main coal seam A5 can be increased to the designed level 350,000 t/a.

关 键 词：急倾斜煤层 整体顶梁 悬移支架 放顶煤开采 

分 类 号：TD823.49[矿业工程—煤矿开采]