摘要
以三元煤矿104#厚煤层综放面为实际工程背景,运用数值模拟软件FlAC3D,对综放工作面顶板覆岩的运移和应力分布规律进行了模拟研究。结果表明:工作面推进30m左右时,综放面的上、中、下不同部位的覆岩塑性破坏范围均为6m左右,随着工作面的推进,应力逐渐在工作面超前处和采空区后部集中,位移量最大的位置出现在采空区后方约8.5m处,上覆岩层最大位移达分别为375mm、425mm、575mm,实测结果与Flac3D数值模拟结果一致。
Taking the actual engineering background of San-yuan coal mine 104# coal seam fully mechanized surface,Numerical simulation software FlAC3D was used to simulate the migration and stress distribution of roof overburden in fully mechanized working face. The results indicate that working face advancing about 30 m, on the fully-mechanized face, middle and lower strata from different parts of the plastic damage scope for about 6 m, with working face advancing, the stress concentration in the back of my face and goaf in advance gradually, the location of the maximum displacement in goaf behind is about 8.5 m, the maximal displacement of overlying strata is respectively 375 mm, 425 mm and575 mm, FlAC3D numerical simulation results are in agreement with the measured results.
作者
阴鹏飞
YIN Pengfei(Xishan Coal and Electricity Co.,LTD.,Xiqu coal,Gujiao 030200,China)
出处
《煤矿现代化》
2020年第5期92-94,共3页
Coal Mine Modernization
关键词
综放开采
应力分布
运移规律
FLAC^3D
数值模拟
fully mechanized top coal caving mining
stress distribution
migration law
Flac
numerical simulation
作者简介
阴鹏飞(1983-),男,山西古交市人,毕业于太原理工大学,本科学历,助理工程师,主要从事煤矿开采方面工作。
