摘要
为解决强膨胀性泥岩底板综采工作面留设2m底煤的回采巷道布置方式造成的煤炭资源大量浪费问题,在对液压支架与底板交互作业关系分析的基础上,采用数值模拟方式确定综放工作面在留设0. 5m底煤时,开采过程中底鼓量不会影响到工作面的顺利推进,并将此方法成功应用于亭南煤矿304综放工作面,大幅提高了工作面资源回收量,提高了工作面的经济效益。
As it was a great waste of coal resources caused by the layout of mining roadway with 2 m bottom coal remaining in the fully mechanized top-coal caving face above strong expansive mudstone floor,based on the analysis of the interaction between the hydraulic support and the floor,a numerical simulation was carried out for the fully mechanized top-coal caving face. According to the result,the 304 top-coal caving face of Tingnan Coal Mine can advance smoothly with only0. 5 m bottom coal remaining,considering floor heaving during the mining process. The mining method was applied to the304 fully mechanized top-coal caving face,and the resource recovery at the working face was greatly increased.
作者
段红民
DUAN Hong-min(Mining and Designing Department,Tiandi Science and Technology Co.,Ltd.,Beijing 100013,China)
出处
《煤炭工程》
北大核心
2018年第10期70-73,共4页
Coal Engineering
关键词
膨胀性泥岩
底板
留底煤
综放开采
底鼓
expansive mudstone
floor
bottom coal remaining
fully mechanized top-coal caving
floor heaving
