水体下放顶煤开采导水裂隙带高度的回归分析

It is very important to insure the safety of coal mining under water body if the height of water flowing failure zone can be ascertained accurately. There is not empirical equation that is suitable for the height of water flowing failure zone on top coal caving under water body. So this paper studies the empirical equation applying the method of regression analysis. The empirical equation is very accurate. It can be applied to project. At the same time, this paper depicts the range of convenience also, and the problems when other empirical equation is studied by the method of regression analysis.