Kailuan (Group) Co.,Ltd.
School of Safety Engineering,North China Institute of Science and Technology
School of Computer Science,North China Institute of Science and Technology

煤矿瓦斯灾害防治亟需一种操作简单、测定准确、适用性强的煤层瓦斯压力确定方法。首先,从理论上对煤样残余瓦斯压力影响因素进行了分析;然后,实验研究了煤样残余瓦斯压力与煤样初始瓦斯压力的关联性,并提出了基于煤样残余瓦斯压力的煤层瓦斯压力推算方法;最后,进行了工程应用。研究结果显示:煤样残余瓦斯压力主要受控于煤层瓦斯压力、煤样粒度、瓦斯解吸时间和煤质特性,煤样残余瓦斯压力和煤样初始瓦斯压力呈线性关系,采用煤样残余瓦斯压力推算的煤层瓦斯压力相对可靠。

It is necessary for disaster prevention and control of coal mine to research a new method determiningcoal seam gas pressure which has some characteristics such as operating easily,mensurating accurately andgood applicability.At first, the influence factor of residual gas pressure of coal sample is analyzedtheoretically;afterwards,the relevance of residual gas pressure of coal sample and initial gas pressure of coalsample is researched by making use of experiment,and gas pressure calculation method of coal seam based onresidual gas pressure of coal sample is proposed;finally,application is carried out.The results show that influence factors of residual gas pressure of coal sample are gas pressure of coal seam,granularity of coal sample,time of gas desorption and coal characteristics,and the relevance of residual gas pressure of coal sample andinitial gas pressure of coal sample is linear,and the gas pressure in coal seam that is inferred by the residual gas pressure of coal sample is reliable relatively.

国家自然科学基金资助项目(51204070)