某矿近距离煤层巷道布置研究  

Close- up of a Coal Mine Roadway Layout Study

作　　者：邓鹏海 王建平[1] 孔令根[1] 张伟龙[1] 曹鹏[1] 

机构地区：[1]中国矿业大学资源与安全工程学院,北京100083

出　　处：《煤》2014年第1期8-11,31,共5页Coal

摘　　要：文章通过某矿现有巷道的变形监测表明近距离煤层巷道采用重叠式布置时,其下部巷道矿压显现大,巷道变形量大,支护困难,宜采用内错式布置避开集中应力的影响。通过FLAC3D模拟了内错2 m、4 m和6 m时下部煤层运输巷的垂直和水平变形量,最后确定巷道内错4 m左右最为合理。通过理论计算得知,该矿上部煤层遗留护巷煤柱的集中应力影响范围约为4.5 m,故内错4 m是合理的。Through an existing roadway deformation monitoring indicates a mine roadway using overlapping seams close arrangement, its pressure behavior of the lower roadway large roadway deformation capacity, supporting difficulties should avoid using the wrong type ar- rangement stress concentration effects. By FLAC3D simulates the wrong 2 m, the vertical and horizontal deformation of the lower seam roadway of 4 m and 6 m when finalizing the roadway around 4 m wrong most reasonable. By theoretical calculation that coal mine left o- ver from the upper part of Pillar stress concentration range of about 4.5 m, so the wrong 4 m is reasonable.

关 键 词：近距离煤层 巷道布置 内错式布置 数值模拟 

分 类 号：TD822.2[矿业工程—煤矿开采]