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随着丁集煤矿的开采深度逐渐向深部发展,工作面的高温现象也更加突出,矿井气象条件呈现恶化趋势,严重地威胁着煤矿安全高效生产和井下工人身心健康。根据丁集煤矿的地温钻孔资料,对其地温状况进行分析,发现丁集煤矿的地温异常特征比较明显。全井田地温梯度2.30~4.00℃/100 m,平均为3.21℃/100 m。深度每增加31.15 m,地温增加1℃,属地温异常区。运用线性回归和数理统计方法对开采深度不断增加的煤层的地温进行分析,发现丁集煤矿的地温分布在深度上具有规律性。根据得出的规律,提出了地温的防治措施,对煤矿的安全高效开采具有一定的现实意义。
With the deep mining depth of Dingji coal mine gradually developing, the phenomenon of high temperature in the working face is more prominent, and the meteorological conditions of the mine show a deteriorating trend, which seriously threatens the safe and efficient production of coal mines and the physical and mental health of underground workers. According to the data of geothermal borehole in Dingji coal mine, the geothermal conditions of Dingji coal mine are analyzed, and the characteristics of geothermal anomalies in Dingji coal mine are obvious. The whole ground temperature gradient 2.30 ~ 4.00 ℃ / 100 m, with an average of 3.21 ℃ / 100 m. For every 31.15 m depth increase, the ground temperature increases by 1 ℃, belonging to the anomaly area of ground temperature. Using linear regression and mathematical statistics method to analyze the ground temperature of coal seam with increasing mining depth, we find that the geothermal distribution of Dingji coal mine has regularity in depth. According to the law, the control measures of ground temperature are put forward, which have certain practical significance for the safe and efficient mining of coal mines.