摘要
针对同煤集团在近距离特厚煤层采动过程中下工作面巷道容易出现片帮以及底鼓现象,通过理论分析与现场监测的方法,对采动影响下的底板巷道的变形和破坏规律进行探讨,得出了采动影响下工作面底板的破坏深度与支承压力对底板巷道的影响范围与程度,该研究对近距离特厚煤层开采过程中底板巷道的布置及支护设计具有一定的参考价值。
In the mining of close distance extra thick coal seams, rib spalling and floor heaving often happen in working face transportation roadway. Theoretical analysis and field monitoringare carried out to investigate the deformation and fracture behaviors of floor roadway. Fracture depth of floor working face under mining influence, and the influence range and extent abutment pressure has on floor roadway are obtained. This research can provide some references for layout and support design of floor roadway under the mining influence of c close distance extra thick coal seams.
出处
《煤炭工程》
北大核心
2017年第5期44-46,50,共4页
Coal Engineering
关键词
近距离
特厚煤层
采动影响
底板巷道
close distance
extra thick coal seam
mining influence
floor roadway
