近距煤层同采巷道优化布置研究  

Study on the Optimal Layout of Roadways of Contiguous Seams by Simultaneous Mining

作　　者：鲁岩[1] 高杰[1] 刘长友[1] 马立强[1] 王业常 

机构地区：[1]中国矿业大学矿业工程学院,煤炭资源与安全开采国家重点实验室,江苏徐州221116 [2]福兴集团有限公司,山东枣庄277300

出　　处：《采矿与安全工程学报》2012年第6期797-801,共5页Journal of Mining & Safety Engineering

基　　金：中央高校基本科研业务费专项资金项目(2010QNA32,2011QNB01);国家自然科学基金项目(50904063);江苏高校优势学科建设工程项目

摘　　要：根据刘东矿西三采区近距离煤层的地质赋存条件,首先采用理论分析的方法确定近距煤层采用下行垮落法同采,回采巷道采用外错布置;然后采用数值模拟优化近距离煤层同采巷道间距,得出该采区上下煤层巷道的合理间距为15 m。最后在37102面与37202面进行了应用,应用结果表明:在37102面回采影响期间,37202面下巷两帮移近量为131 mm;顶底板移近量为61 mm;影响范围为工作面前方15 m和后方25 m的范围内。实践证明,近距煤层同采巷道布置合理,巷道围岩变形得到了较好控制。Based on the geological occurrence conditions in the Western 3 Mining Area of Liudong Mine, by the theoretical analysis, this paper firstly determined the contiguous seams were mined simultaneously by descending caving method, and the roadways of the working face by mining simultaneously were arranged outward staggered. The numerical simulation was adopted to optimize the distance between roadways of contiguous seams by mining simultaneously, we drew the conclusion that the reasonable distance between roadways was 15 m in the Western 3 Mining Area ofLiu dong Mine. Finally, the results were applied to 37102 and 37202 working faces in the Liu dong Mine, and the application result showed that during the mining of 37102 working face, the convergence of side wall was 131 mm and the roof-to-floor convergence was 61 mm in the lower roadway of 37202 working face. The influence scope was limited in the range of 15 m in front of working face and 25 m behind working face. Layout of roadways in close contiguous seams by simultaneous mining is rational and the deformation of the surrounding rock of roadways is controlled effectively.

关 键 词：近距煤层 同采 优化布置 

分 类 号：TD82[矿业工程—煤矿开采]