【摘要】 以平煤集团五矿的深埋巷道为研究对象,采用有限差分程序FLAC3D研究了围岩特性对深埋巷道围岩位移的影响,获得了不同岩石内摩擦角和粘聚力条件下深埋巷道围岩位移变化的规律。分析结果表明,在地应力和支护阻力一定时,岩石的内摩擦角对深埋巷道围岩位移的影响最为明显。更多还原

【Abstract】 Taking the deep roadways in 5th coal mine,Pingdingshan Group Company of Coal Industry,as object of study,the effect of properties of surrounding rock on its displacement for deep roadway is evaluated by using the finite difference code FLAC3D,and the variations of displacement of surrounding rock under different internal friction angles and cohesive strengths of rock are presented.The results show that the internal friction angle of rock has importance affect on the displacement of surrounding rock for deep roadway when in-situ stress and support resistance all are certain.更多还原