工作面瓦斯涌出量逆向推算瓦斯含量梯度

Study on reverse projection of gas concentration gradient using face gas emission sub-source prediction method

采用回采工作面瓦斯涌出量计算公式变化为逆向推算瓦斯含量计算公式计算出瓦斯含量值,线性回归得出瓦斯含量梯度的方法.研究结果表明,瓦斯含量逆向推算方法充分利用矿井日常瓦斯监测数据,克服了煤层瓦斯含量测定的直接法的人为主观因素影响.研究结论瓦斯含量逆向推算方法突破了传统大量现场直接法测定瓦斯含量,由此计算瓦斯含量梯度的方法,提高了计算的准确性,有助于准确、方便、快捷的计算瓦斯含量梯度,可以作为计算瓦斯含量梯度的主要方法加以推广.

A reversibly projected gas content formula is derived from the coal face gas emission formula,which is used to calculate the gas content values.The calculated gas content values are analyzed using a linear regression method to generate gas content gradient.The study results show that the gas content reverse calculation method takes full advantage of day-to-day mine gas monitoring data,overcomes the subjective impact of the method of direct measurement on coal seam gas content.The gas content reversibly projected method is a breakthrough in terms of the method of traditional direct coal seam gas content measurement for calculating gas content gradient.The method developed improves the accuracy and convenience in calculating the gas content gradient,and can be regarded as a main calculation method of gas content gradient.