摘要
为研究大倾角双斜开采工作面的采场应力分布与围岩变形破坏特征,根据新集二矿E1108工作面地质条件,采用UDEC2D3.1数值模拟软件分别对大倾角双斜工作面俯采与仰采时的岩移规律进行了模拟计算,并对现场相关实测结果进行了分析。结果表明,大倾角双斜工作面俯采及仰采时采场围岩应力分布及覆岩变形破坏特征均呈现与近水平或缓倾斜煤层不同的特殊规律。数值模拟分析与现场实测结果基本一致。
Aiming at the geological conditions of E1108 coal face of Xinji #2 mine,the stope stress distribution and features of surrounding rock deformation in downward upward mining at large inclination angle were studied with UDEC2D3.1 numerical simulation software and the surrounding rock movement in downward upward mining at large inclination angle and relative measured results have been simulated.It indicates that the stope stress distribution and features of surrounding rock deformation in downward upward mining at large inclination angle show on special patterns different from exploiting horizontal and gentle inclined coal seams.The findings provide scientific evidence to E1108 coal face mining and mining practice under similar conditions.
出处
《中国煤炭》
北大核心
2011年第4期59-63,68,共6页
China Coal
基金
中国矿业大学煤炭资源与安全开采国家重点实验室开放研究基金资助项目(09KF10)
关键词
大倾角双斜工作面
围岩应力
岩层移动
数值模拟
downward＆upward mining coal face
surrounding rock stress
strata movement
numerical simulation
