河南理工大学学报:自然科学版2011,Vol.30Issue(4):406-410,5.
薄煤层开采工作面电磁辐射特征
EMR characters of thin coal seam workface
摘要
Abstract
The EMR technology and equipment is applied to monitor the thin coal seam workface and the EMR character is deeply analyzed.The result shows that if the gob-side entry retaining mode is adopted,the intensity and fluctuation of EMR in the upper lane are higher than lower lane owing to the influence of upper section adjacent goaf.EMR increase before weighting and decrease after weighting.During the process of mining,EMR present evidence periodicity.Rock burst happen after a short time of the peak of EMR in thin coal seam,which is different from thick coal seam.In thick coal seam,EMR increase before rock burst,after a period of time it decrease and stand in low value,then rock burst happened.When EMR technology is applied to analyze the thin coal seam workface stress and predicted rock burst,in order to raise veracity,the characters must be considered.关键词
电磁辐射/薄煤层/冲击地压Key words
electromagnetic radiation(EMR)/thin coal seam/rock burst分类
矿业与冶金引用本文复制引用
邓洪波,王恩元,刘晓斐..薄煤层开采工作面电磁辐射特征[J].河南理工大学学报:自然科学版,2011,30(4):406-410,5.基金项目
国家自然科学基金资助项目 ()
国家“十一五”科技支撑计划项目 ()
国家重点基础研究发展计划973项目 ()
煤炭资源与安全开采国家重点实验室项目 ()
中国矿业大学青年科研基金资助项目 ()