板石煤矿12101回采巷道锚杆联合支护技术

12101 stope drift active workings of slate coal mine 21# coal seams head mining area rockbolt ally self with the shoring technology

该文针对板石煤矿近距离煤层群开采现场工程条件,进行煤柱围岩灾变效应和采动影响下的巷道应力环境分析,并采用工程类比法进行锚杆锚索联合支护设计,提出近距离煤层回采巷道控制技术方案,保证了高效生产。

Scene project condition the main body of a book is exploited specifically for slate coal mine close quarter coal seam group, the effect and spirit carrying out the coal post surronding rock cataclysm move the analysis affecting the lower tunnel strain environment , adopt project analogy to carry out rockboh anchorage cable allying self with shoring design and , suggest that close quarter coal seam stope drift active workings have controlled the technology scheme , guarantee owing an ore high yield high - effect turn out.