摘要
以安徽某煤矿倾角煤层采煤工作面的开采为工程背景,通过FLAC3D大型模拟软件对不同煤层倾角采煤工作面开采后采场围岩及顶底板矿压分布规律进行研究。研究结果表明:倾角对煤层工作面开挖后采场围岩应力分布、支承压力的分布有显著影响。倾角煤层工作面开采后,采场顶板岩层的变形、破坏和运动形式不同于一般煤层工作面且采场顶板应力分布是不对称的。
Taking the dip angle working face of a coal mine in Anhui province as engineering background, the ground pressure distribution laws of wall rock and roof and floor are studied through using the large - scale simulation software of FLAC^3D after coal mining. The research results show that the angle has all important effect on the distribution of the stress and bearing pressure after coal mining, the deformation behavior, destroy characteristics and moving laws of roof in dip angle working face are different with usual working face and the distribution of roof stress is asymmetrical.
出处
《煤矿安全》
CAS
北大核心
2013年第5期66-68,共3页
Safety in Coal Mines
关键词
倾角
围岩
顶底板
数值模拟
围岩应力
支承压力
dip angle
wall rock
roof and floor
numerical simulation
the stress
bearing pressure
