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为确定阜康地区煤层瓦斯压力影响因素的影响程度,结合朗格缪尔方程,选用阜康矿区矿井现场实测瓦斯基础参数为对象,分析了影响瓦斯压力的7项因素。采用主成分分析法,对煤层瓦斯压力影响因素进行了主成分提取,选取了3个主成分代替原来的7项影响因素,并进行了定量分析,进而确定了各因素的影响程度。结果表明:在阜康矿区煤的灰分对煤层瓦斯压力的大小影响最大,占总影响程度的27.9%;瓦斯含量、水分、孔隙体积、视密度、吸附常数a值次之,分别为23.6%、20.8%、11%、10.6%、3.9%;吸附常数b最小,影响比例为2.2%。
In order to determine the degree of influence of the coal seam gas pressure in Fukang area, combined with Langmuir equation, the gas field parameters measured in the mine site of Fukang Mining Area were selected as the object. Seven factors affecting the gas pressure were analyzed. Principal component analysis was used to extract the principal components from the factors influencing the coal seam gas pressure. Three principal components were selected to replace the original seven factors, and the quantitative analysis was conducted to determine the degree of influence of each factor. The results show that the ash content of coal in Fukang mining area has the greatest influence on the coal seam gas pressure, accounting for 27.9% of the total. The gas content, water content, pore volume, apparent density and adsorption constant a are the second, 23.6% 20.8%, 11%, 10.6% and 3.9%, respectively. The adsorption constant b is the smallest, affecting 2.2%.