大屯矿区中心区地下水资源承载力研究  

Study on carrying capacity of groundwater resources in central area of Datun Mining Area

作　　者：杨小刚 

机构地区：[1]中国煤炭科工集团西安研究院有限公司,陕西西安710077

出　　处：《煤炭科学技术》2015年第8期144-148,111,共6页Coal Science and Technology

基　　金：国家自然科学基金重点资助项目(51034003);国家科技支撑计划资助项目(2012BAC10B03;2012BAK04B04)

摘　　要：为了优化大屯矿区中心区地下水开采方案,降低地下水超采对地面沉降的影响,缓解该中心区供水能力不足的问题,基于地下水数值模拟方法对该中心区进行了地下水资源承载力研究。根据中心区水文地质、气象和水资源利用等资料依次建立了其水文地质概念模型、数学模型和数值模型,借助Visual Modflow进行了求解,利用长观井水位数据对模型进行了识别和验证。结果表明：9口超采井在开采水量为192～480 m3/d,减少幅度为20%～50%,按这样开采水量可实现含水层的承压开采,可缓解中心区地面沉降,合理利用水资源。In order to optimize an groundwater exploitation plan in central area of Datun Mining Area, to reduce over exploitation of the groundwater affected to the surface subsidence and to release the water supply insufficient in the central area, based on the numerical simu- lation method of the ground water, study on the carrying capacity of the groundwater resources in the central area was conducted.According to the hydrogeology, meteorological and water resource utilization and other informations, the hydrogeologic conception model, mathematic model and numerical model were established in sequence.The Visual Modflow was applied to the solution and the water level data from the long-term observation well was applied to the identification and verification of model.The results showed that nine over exploitation wells had a water over drainage value of 192N 480 m3 per day.With a reduction of 20% - 50%, the water pressurized mining couht be realized in the aquifer, the surface subsidence in the central area would be released and the water resources could be rationally utilized.

关 键 词：水资源承载力 地下水 Visual MODFLOW 识别和验证 

分 类 号：TD82[矿业工程—煤矿开采] P641[矿业工程—矿山开采]