摘要
文章用运数值模拟对晋华宫矿7#煤层8210工作面进行大采高工作面煤壁片帮进行了分析,主要考虑煤体强度对煤壁的水平位移的影响。在支架额定工作阻力大于12 000 kN时,工作面快速推进可确保煤壁不片帮;来压期间支架运行平稳,工作面煤壁保持相对稳定。
According to numerical simulation, 8210 working face of 7#coal seam in Jin Hua Gong Colliery was analyzed. Ef- fect of coal body strength on horizontal displacement of coal wall was obtained. When rated working resistance is greater than 12000kN,coal wall didn＇t spall as working face is moving forward rapidly. The working face of coal wall is likely to remain rela- tively stable during mine pressure behavior.
出处
《山西大同大学学报（自然科学版）》
2014年第1期73-74,78,共3页
Journal of Shanxi Datong University(Natural Science Edition)
关键词
煤壁片帮
数值模拟
煤体强度
coal wall spalling
numerical simulation
mass strength
