大采高开采扰动区煤岩应力分布特征

Stress Distribution of Coal and Rock in Large Mining Height Disturbed Zone

以宁东矿区6.2 m采高工作面开采扰动区内煤岩赋存特征为背景,采用数值模拟和现场监测方法,研究了在破碎围岩环境下,大采高开采扰动区内(主运巷)煤岩应力变化特征。对工作面端头应力以及主运巷煤柱侧应力分布进行了实测分析与总结。

Taking occurrence characteristics of coal and rock in excavation disturbed zone of Ningdong Mine 6.2 m height mining face as the background, by using numerical simulation and field monitoring method, the article researched coal and rock stress variation characteristics under the environment of large mining height disturbed zone （main transport roadway）, and analyzed and summarized stress at face ends and lateral stress distribution of coal pillar at main transport roadway.