CAJ | 학술논문

为更好地掌握大湾矿11#煤层瓦斯赋存特征，提高防突能力，运用地层学理论将该矿地层划分为2个层序；结合瓦斯地质学理论，运用定性与定量相结合的方法，探讨各因素对瓦斯赋存的影响，得出影响11#煤层瓦斯赋存特征的3个关键因素：地质构造、覆岩、煤层埋深。根据现场实测数据，结合数理统计方法建立了瓦斯压力预测模型，其预测值与实测值比较，误差较小。利用该模型对11#煤层瓦斯压力空间分布进行预测，可为煤与瓦斯突出防治提供理论指导。
위경호지장악대만광11#매층와사부존특정，제고방돌능력，운용지층학이론장해광지층화분위2개층서；결합와사지질학이론，운용정성여정량상결합적방법，탐토각인소대와사부존적영향，득출영향11#매층와사부존특정적3개관건인소：지질구조、복암、매층매심。근거현장실측수거，결합수리통계방법건립료와사압력예측모형，기예측치여실측치비교，오차교소。이용해모형대11#매층와사압력공간분포진행예측，가위매여와사돌출방치제공이론지도。
In order to better grasp the characteristics of gas occurrence in No. 11 coal seam in Dawan Coal Mine and improve the outburst prevention ability, the strata of the mine were divided into two sequences by using stratigraphy theory;based on the theory of coal-bed gas geology and by using the qualitative and quantitative methods, discussion was made on the influence of various factors upon the occurrence of gas, and three key factors affecting the occurrence characteristics of gas in No. 11 coal seam were obtained, i. e. the geological structure, the overburden rock and the buried depth of coal seam. A prediction model of gas pressure was established according to the field test data and by using the method of mathematical statistics, and the error of the predicted values was smaller as compared with that of the measured ones. The prediction on the space distribution of gas pressure in No. 11 coal seam was carried out by using this model, which can provide a theoretical guidance for the effective prevention and control of coal and gas outburst.