矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2013年
3期
70-73
,共4页
分源预测法%工作面瓦斯涌出量%上部邻近层开采%瓦斯涌出影响系数%瓦斯排放率
分源預測法%工作麵瓦斯湧齣量%上部鄰近層開採%瓦斯湧齣影響繫數%瓦斯排放率
분원예측법%공작면와사용출량%상부린근층개채%와사용출영향계수%와사배방솔
different-source prediction method%gas emission quantity in working face%upper adjacent seam extraction%impact factor of gas emission%gas drainage rate
传统的瓦斯涌出量分源预测法未考虑到上部邻近层开采对本煤层煤体瓦斯涌出的影响,其计算结果误差较大.为此,提出在计算回采工作面瓦斯涌出量时,在传统计算公式中加入上部邻近层开采对工作面煤体瓦斯涌出影响系数K4,将回采工作面瓦斯涌出量计算公式改为q1=K1K2K3K4mM(W0-Wc).加入上部邻近层开采瓦斯涌出影响系数后,瓦斯涌出量计算方法更加合理,计算结果更加准确.
傳統的瓦斯湧齣量分源預測法未攷慮到上部鄰近層開採對本煤層煤體瓦斯湧齣的影響,其計算結果誤差較大.為此,提齣在計算迴採工作麵瓦斯湧齣量時,在傳統計算公式中加入上部鄰近層開採對工作麵煤體瓦斯湧齣影響繫數K4,將迴採工作麵瓦斯湧齣量計算公式改為q1=K1K2K3K4mM(W0-Wc).加入上部鄰近層開採瓦斯湧齣影響繫數後,瓦斯湧齣量計算方法更加閤理,計算結果更加準確.
전통적와사용출량분원예측법미고필도상부린근층개채대본매층매체와사용출적영향,기계산결과오차교대.위차,제출재계산회채공작면와사용출량시,재전통계산공식중가입상부린근층개채대공작면매체와사용출영향계수K4,장회채공작면와사용출량계산공식개위q1=K1K2K3K4mM(W0-Wc).가입상부린근층개채와사용출영향계수후,와사용출량계산방법경가합리,계산결과경가준학.
The traditional different-source prediction method did not consider the impact of the upper adjacent seam extraction on the gas emission in the seam being mined, and the error of the calculated results was relatively larger. For this reason, the paper proposed to add the impact coefficient K4 of the upper adjacent seam extraction on the gas emission in the working face into the traditional formula when the gas emission quantity in the working face was calculated, that is, the calculation formula of the gas emission quantity in working face was changed into q1=K1 K2 K3 K4 mM (W0-Wc ) . After the impact coefficient K 4 of the upper adjacent seam extraction on the gas emission in the working face was added into the traditional formula, the calculation method for gas emission quantity became more rational and the calculated results were more accurate.
