基于多孔介质理论的覆盖层漏风特性研究

Study on the Air Leakage Characteristics of the Cover Based on Porous Media Theory

针对首钢杏山铁矿露天转地下开采覆盖层漏风的实际问题,以多孔介质中流体流动的理论为依据,利用FLUENT软件,模拟了不同孔隙率条件下覆盖层的漏风特性,得到了不同孔隙率条件下覆盖层厚度与漏风系数的关系,对指导矿山露天转地下开采覆盖层的形成具有重要意义。

According to the practical problem of air leakage in the cover of Xingshan Iron Mine which was a mine translated from open-pit to underground mining,based on the theory of fluid flow in the porous media,the air leakage characteristics of the cover under the conditions of different porosity were simulated by FLUENT.The relationship between cover thickness and air leakage coefficient under the condition of different porosity was obtained.It is of great significance to instruct the cover formation of open-pit to underground mining.