CAJ | 학술논문

为了得到斜交高位钻孔最佳抽采效果，利用 Fluent软件模拟斜交高位钻孔仰角分别为20°、30°和35°时采空区瓦斯浓度分布，分析钻孔仰角为30°，夹角为15°、25°、35°、45°时钻孔抽采情况。结果表明：斜交高位钻孔仰角为30°，夹角为25°时钻孔抽采纯量为2.12m3/min，抽采纯量最大，钻孔抽采效果最佳。根据现场实测数据，得到斜交高位钻孔抽采效果最佳时钻孔仰角与夹角分别为30°、27°，两者结果基本一致，从而验证了数值模拟结果的正确性。
위료득도사교고위찬공최가추채효과，이용 Fluent연건모의사교고위찬공앙각분별위20°、30°화35°시채공구와사농도분포，분석찬공앙각위30°，협각위15°、25°、35°、45°시찬공추채정황。결과표명：사교고위찬공앙각위30°，협각위25°시찬공추채순량위2.12m3/min，추채순량최대，찬공추채효과최가。근거현장실측수거，득도사교고위찬공추채효과최가시찬공앙각여협각분별위30°、27°，량자결과기본일치，종이험증료수치모의결과적정학성。
In order to obtain the optimum extracting effect of skew high level boreholes,taking the elevation angle of high level boreholes as 20°,30° and 35°,the gas distribution in gob was simulated by Fluent,and the borehole drainage situation was analyzed when the included angle of drift hole was taken as 15 ° ,25 ° ,35 ° and 45 ° ,with the elevation angle as 30°. The result showed that the extracting gas quantity was 2. 12m3/min,which was the largest when the elevation angle was 30 ° and the included angle was 25 ° . The field test data showed that the elevation angle and the included angle were 30°and 27°separately. Both of the results were basically identical,which proved the correctness of numerical simulation.