摘要
陇东地区地处鄂尔多斯盆地西南缘,是我国重要的煤炭基地,煤炭资源占甘肃省煤炭资源的96%,同时该地区又是水资源短缺的地区,研究煤炭开采对水资源的影响,对陇东地区生态环境保护,水资源合理利用,以及区域可持续发展具有重要意义。文章通过对该区域典型矿井导水裂缝带的计算,并建立评价区水文地质概念模型,基于Visual MODFLOW对煤层开采对地下水的影响进行数值模拟计算,分时段模拟煤炭开采疏排水造成的各含水层地下水流场的变化,分析说明煤炭开采对地下水资源的影响。
Eastern Gansu is an important coal base of China,located at the southwest edge of Ordos Basin.This region is endowed with rich coal resources,accounting for 96%of the total coal resources in Gansu Province,while it is a water-deficient region.Studying the impact of coal mining on water resources is of great significance to the ecological environment protection,rational utilization of water resources and regional sustainable development.Through calculating the water diversion fracture zone of typical mines in this region,the hydrogeological conceptual model of the evaluation area is established,the influence of coal mining on groundwater is numerically simulated based on Visual MODFLOW,the changes of groundwater flow field in each aquifer caused by coal mining drainage are simulated in different periods,and the influence of coal mining on groundwater resources is analyzed and explained.
作者
张伟
ZHANG Wei(Beijing Huayu Engineering Co.,Ltd.,China Coal Technology and Engineering Group,Beijing 100120,China)
出处
《煤炭工程》
北大核心
2021年第S01期26-29,共4页
Coal Engineering
关键词
陇东地区
煤炭开采
数值模拟
地下水流场
Eastern Gansu
coal mining
numerical simulation
groundwater flow field
