大采高工作面顺槽煤柱破坏失稳机理研究

The research of Coal Pillar stable Mechanism in high mining height working face

本文通过理论分析及数值计算分析煤柱支承压力的分布情况和煤柱弹性核率,研究大采高工作面顺槽煤柱破坏失稳机理。大采高综采工作面顺槽煤柱的稳定性直接影响着矿井的安全高效生产,其主要表现为回采巷道的支护难度及支护成本,因此,煤柱稳定性的研究一直煤矿生产中亟待解决的难题。

This article through the theoretical analysis and numerical calculation and analysis of the abutment pressure distribution of coal pillar and pillar elastic nuclear rate, the big mining height the damage mechanism of coal pillar slot instability. Big mining height the fully mechanized working face the stability of coal pillar slot directly influence the safety and efficiency of the mine production, the main manifestation of the extraction roadway supporting difficulty and support costs, therefore, the stability of coal pillar research has been urgently to be solved in coal mine production of difficult problems.