摘要
恒源煤矿459工作面处于矿井边界,受下部6煤回采及边界煤柱影响,巷道在掘进过程中维护困难。采用数值计算研究方法,为巷道加强支护提供了理论依据。
Hengyuan coal mine 459 working face is in mine boundary, it is influenced by the lower 6 coal recovery and boundary pillar, the maintenance of mine roadway is difficult in the excavation process. Through the method of numerical calculation, it provides the theoretical basis for strengthening the supporting of roadway.
出处
《价值工程》
2013年第34期92-93,共2页
Value Engineering
关键词
边界煤柱
应力集中
弯曲下沉
boundary coal pillar
stress concentration
bend down
