焦作矿区突出瓦斯量估算方法对比分析

Contrastive Analysis for Outburst Gas Amount Estimation Methods in Jiaozuo Mining Area

为了得到焦作矿区突出瓦斯量的估算方法,在不同破坏程度、煤样粒度条件下进行突出煤瓦斯解吸试验,研究了各种因素对解吸规律的影响机理;利用经验公式对实验数据进行了拟合分析,得出描述各阶段瓦斯解吸规律的最佳公式,进而得出瓦斯解吸规律的分段函数表达式;将统计所得的数据分类进行回归分析,得出突出煤量与突出瓦斯量的统计规律,从而为研究突出冲击气流逆流规律及由此导致的矿井风流灾变规律提供基础参数。

To get gas outburst estimation method about Jiaozuo Mining Area,we study gas desorption laws of outburst coal under different degree of damage,particle coal sizes; the influence mechanism of various factors on gas desorption laws was studied; we used several empirical formulas to carry on regression analysis of experimental data,and obtained the best formula to describe the gas desorption laws in all stages,and then got the piecewise function expressions of gas desorption laws. We get statistical data regression analysis to grasp statistical laws between outburst coal amount and gas content. So as to study the laws of outburst shock waves and gas reverse flow,we provide basic parameters for the resulting dynamic change laws of mine airflow in disasters.