河南理工大学学报：自然科学版2011，Vol.30Issue(5)：529-533,5.
“三软”煤层回采巷道钻孔卸压参数研究
Study on drilling release pressure parameters of gateway in ＂three soft＂ coal seam
摘要
Abstract
The control technology for surrounding rock around gateway is always one of factors restricting high production and high efficiency in ＂three soft＂ seam mining. Based on the geological conditions at Yonghua No. 1 mine, the traditional support method cant solve gateway supporting problem in ＂three soft＂ coal seam, the coupling support technology of drilling release pressure and U - steel is put forward through theoretical analysis and field test. That is, pressure relief by borehole among gateway U - steel support leave space for surrounding deformation, reduce surrounding stress, and achieve the purpose of gateway stability; Field test shows that the coupling support scheme of pressure relief by borehole and U - steel controls effectively the deformation of surrounding rock around gateway, and the supporting effect is good. It is provided the theoretical and practical basis for controlling the deformation of surrounding rock around gateway in ＂three - soft＂ coal seam.关键词
“三软”煤层/钻孔卸压/耦合支护Key words
＂three soft＂ coal seam/pressure relief by borehole/coupling support分类
矿业与冶金引用本文复制引用
孟宪义,程东全,勾攀峰,李树彬..“三软”煤层回采巷道钻孔卸压参数研究[J].河南理工大学学报：自然科学版,2011,30(5):529-533,5.基金项目
河南省科技创新杰出人才基金资助项目（094200510004）. （）
