极近距离煤层回采巷道布置方式研究  

Study on Mining Roadway Arrangement of Ultra-close Multiple-seams Mining

作　　者：董红军[1] 

机构地区：[1]山西省正华实业集团公司太原西峪煤矿,太原030024

出　　处：《煤炭技术》2016年第4期50-52,共3页Coal Technology

摘　　要：首先应用比值判别法和"三带"判别法确定煤层群采用下行开采,然后通过理论分析得出回采巷道应采用外错式布置并计算出相应外错距,借助数值模拟软件模拟了该种情况下巷道围岩应力分布特征、屈服破坏特征以及围岩移近量,最后提出了11#煤层回采巷道支护方式。It will be determined that which seam will be first mined by means of ratio-index method and three zone method. And then, it will be applied in the layout of the roadway. And the external arrangement and the corresponding external arrangement distance will be analysed and calculated through theoretical analysis. And by means of numerical simulation, it will be analyzed that the stress distribution characteristics of surrounding rock, yield failure characteristics and displacement of surrounding rock in this kind of situation. In the end, the roadway supporting of 11#coal seam will be put forward.

关 键 词：极近距离煤层 联合开采 合理错距 数值模拟 

分 类 号：TD823.82[矿业工程—煤矿开采]