长江科学院院报2012，Vol.29Issue(6)：52-57,6.
采空区孔隙率的空间立体分析研究
Porosity of Goaf in Three Dimensions
摘要
Abstract
Four-dimensional dynamic simulation should be the principal method of goaf simulation and also the essential approach to understand laws of fields in the goaf. The exact determination of goaf porosity is a key problem for this method. In this research, the porosity of goaf is studied in three-dimensional space. At first, the porosity is regarded as a second-order tensor, and the computational method for the porosity in all directions is obtained. Secondly, porosity in the vertical direction is analyzed and the relationship between porosity and rock diameter is obtained through simulation test. The process curve is drawn and is proved to be correct by means of field observation and theoretical analysis. Finally, the air flow field of goaf in vertical direction is analyzed through numerical simulation , which in turn demonstrates the necessity to research on the goaf in three dimensions.关键词
孔隙率/采空区/岩石粒径/模拟试验/数值模拟Key words
porosity/ goaf/ rock diameter/ simulation test/ numerical simulation分类
资源环境引用本文复制引用
张春,题正义,李宗翔..采空区孔隙率的空间立体分析研究[J].长江科学院院报,2012,29(6):52-57,6.基金项目
国家自然科学基金资助项目(51074086,51174109) （51074086,51174109）
