综放沿空掘巷区段窄煤柱合理宽度研究

Research on Reasonable Width of Narrow Pillar of Roadway Driving along Goaf of Fully Mechanized Caving Face

以某矿三盘区301综放工作面沿空掘巷区段煤柱为研究背景,采用理论计算、数值模拟对区段煤柱进行了系统的研究。综合理论分析及数值模拟研究结果,最终确定区段窄煤柱的合理宽度为8 m。

Taking the determination of segment pillar of roadway driving along next goaf of No.301 fully mechanized caving face in No.3 panel in a coal mine as the engineering background, theoretical calculation and numerical simulation were used to study the pillar systematically. Comprehensive analyzed the numerical simulation results and numerical simulation results, the width of segment pillar was determined as 8 m.