综放工作面顶煤运移规律数值模拟  

Namerical Simulation of Top Coal Movement Laws at Fully Mechanized Mining Face

作　　者：马建宏[1,2] 候超[1] 陈懿博[1] 李建明[1] 

机构地区：[1]河南理工大学,河南焦作454000 [2]煤炭安全生产河南省协同创新中心,河南焦作454000

出　　处：《煤矿安全》2016年第8期216-218,共3页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(U1204512);河南省高等学校青年骨干教师计划资助项目(2010GGJS-058/2011GGJS-058)

摘　　要：通过FLAC3D数值模拟赵庄矿二号井1304综放工作面不同推进距离下的顶煤移动规律,结果表明煤层开采后工作面前方形成明显的超前支承压力区,随着工作面的推进,超前支承压力峰值不断增大并趋于稳定,工作面推进至煤壁前方10 m左右时顶煤垂直位移量开始大幅提高。The top-coal movement laws under different forward distances at 1304 fully-mechanized mining face in Zhaozhuang Mine No.2 Shaft are simulated by FLAC^3 D.The results show that there is obvious advancing abutment pressure zone after the coal mining in front of the mining face.With the advancing of mining face,the peak value of advancing abutment pressure is increased and stabled;vertical displacement of the top-coal began to increase sharply when mining face advanced to coal wall front around 10 m.

关 键 词：综放工作面 顶煤运移 支承压力 FLAC^3D数值模拟 

分 类 号：TD322.1[矿业工程—矿井建设]