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一、巴彦宝力格煤田矿床充水因素1.地形、地貌及气候特征。本详查区属内蒙古高原丘陵区,地势平缓,高差不过十三米,地形对自然排泄大气降水较为不利。煤田属中温带半干旱大陆性气候,年均气温为2.7℃,年平均降水量249.90mm,降水分布不均匀,多集中在7、8、9三个月,年平均蒸发量1844.8mm。冬季漫长严寒,夏季短暂,昼夜温差大,多风、少雨、干燥。在正常情况下,大气降水不会直接对矿坑充水。
First, Bayan Baoligong coalfield waterflooding factors 1 topography, geomorphology and climate characteristics. This survey area belongs to the hilly area of Inner Mongolia plateau, flat, height difference, but 13 meters, the topography of the natural excretion of precipitation is more unfavorable. Coalfield is a temperate semi-arid continental climate, with an average annual temperature of 2.7 ℃, the annual average rainfall of 249.90mm, uneven distribution of precipitation, mostly concentrated in 7,8,9 three months, the average annual evaporation of 1844.8mm. Long winter cold, short summer, large temperature difference between day and night, windy, drier, dry. Under normal circumstances, the precipitation does not directly water the pit.