煤矿安全2017，Vol.48Issue(11)：210-212,3.DOI:10.13347/j.cnki.mkaq.2017.11.056
综采工作面覆岩下沉量三维表达及采空区孔隙率分布计算
Three Dimensional Expressions of Overburden Subsidence and Calculation of Porosity Distribution in Fully Mechanized Mining Face
张彦斌 1王毅1
作者信息
- 1. 太原理工大学矿业工程学院,山西太原030024
- 折叠
摘要
Abstract
Taking 3304 working face of Zhaozhuang Coal Mine No.3 coal bed as the research object,using UDEC simulation method,damage movement and deformation of overlying strata and the distribution of mined out area porosity is studied.The results show that the strata subsidence form is similar to "dustpan" shape distribution.The quantitative expression of porosity distribution and the distribution of porosity are obtained.With the increase of height,the porosity of the falling rock mass decreases gradually.关键词
采空区/覆岩移动/下沉量/孔隙率/数值模拟/瓦斯抽采Key words
goaf/overlying strata movement/subsidence/porosity/numerical simulation/gas drainage分类
矿业与冶金引用本文复制引用
张彦斌,王毅..综采工作面覆岩下沉量三维表达及采空区孔隙率分布计算[J].煤矿安全,2017,48(11):210-212,3.
