【作者】 廉巍；

【导师】 杨本生；

【作者基本信息】 河北工程大学 ， 矿产普查与勘探， 2009， 硕士

【摘要】 岩溶地区地下水资源是维持泉流量、满足工农业生产需求的重要水资源。近年来受人类活动的影响,我国北方泉流量逐年减少,甚至断流,对生态环境造成危害。因此,分析岩溶地区泉流量影响因素、模拟泉流量动态变化过程,对地下水资源管理和泉域生态环境保护具有重要的意义。本论文以东风湖泉域地下水资源为研究对象,进行了地下水开发利用现状研究,指出了开发利用过程中存在的问题,采用排泄量法和补给量法对泉域地下水资源量进行了评价,并根据泉域多年地下水位、降水量及泉流量进行了地下水动态研究。本文在收集和分析区域地质、水文地质资料的基础上,利用地下水数值计算模型Visual MODFLOW,建立了泉域地下水数值模型。利用地下水位和泉流量观测资料,确定了泉域水文地质参数。利用实测资料对模型进一步进行了验证。结果表明,建立的地下水数值模型较为可靠,可以用来模拟和预测泉域地下水动态及泉流量变化。在水量平衡分析的基础上,对影响泉域地下水变化因素进行了全面分析,揭示了区域降水、河、渠等地表水和地下水开采对泉流量的影响。总之,通过对东风湖泉域岩溶地下水资源的研究,本论文取得了可靠的评价结果,为东风湖泉域岩溶地下水资源的合理开发和高效利用提供了科学依据。更多还原

【Abstract】 Groundwater in karst area is very precious for water resources to sustain basic spring discharge and to satisfy water requirement of industry, agriculture and living.Spring discharge is deceased significantly or even disappeared in the north China in recent years due to artificial influences, which endangers ecology and environment in the region.Therefore, it is very important for groundwater resources management and ecological and environmental protection to analyze influences to spring discharge and simulate their variations.This article takes ground water resources of Dongfenghu spring basin as the research object, the status of groundwater developing has been researched, and we pointed out the problems during exploitation and utilization; the paper have researched the karst groundwater resources quantity of discharge and recharge two ways; and in terms of its water level, precipitation and spring flow, the trend of karst groundwater has been researched.A numeicial groundwater model is developed using Visual MODFLOW and its calculation was based on geology and hydrogeological data in the study area. The hydrogeological parameters are calibrated by comparing observed and simulated groundwater tables and spring discharge. Influences of precipitation, surface water from rivers, channela and reservoirs and groundwater withdrawals to spring discharge variations are revealed through water balance analysis.The numerical model was further verified according to the actual observation data. The study results show that the model is reliable for groundwater flow simulation, and is able to predict the variations of the groundwater levels and spring discharge in this area.To sum up, this paper gained credible results from the study on karst groundwater resources of Dongfenghu Spring basin , this can affords scientific basis on reasonable and hing effective utilization at karst groundwater resources of Dongfenghu Spring basin.更多还原