基于地表水地下水耦合模型的白马河傍河水源地开采量评价  

Evaluation of Baima riverside water source exploitation based on surface water and groundwater coupling model

作　　者：董杰[1,2,3] 付佳妮 滕飞达 DONG Jie;FU Jiani;TENG Feida(College of Environmental Science and Engineering,Ocean University of China,Qingdao,Shandong 266100,China;Qingdao Geological Engineering Investigation Institute,Qingdao,Shandong 266100,China;Key Laboratory of Urban Geology and Underground Space Resources,Shandong Bureau of Geology and Mineral Resources,Qingdao,Shandong 266100,China;College of New Energy and Environment,Jilin University,Changchun,Jilin 130021,China)

机构地区：[1]中国海洋大学环境科学与工程学院,山东青岛266100 [2]青岛地质工程勘察院,山东青岛266100 [3]山东省地矿局城市地质与地下空间资源重点实验室,山东青岛266100 [4]吉林大学新能源与环境学院,吉林长春130021

出　　处：《山东科技大学学报（自然科学版）》2020年第5期1-9,共9页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(41572215);山东省国土资源厅地质环境项目(SDZS-2016-GTT02)。

摘　　要：目前基于数值模型的傍河水源地开采量评价中,常把河水作为第一类定水头边界,本质上是把河流当成无限水源,在理论上存在一定缺陷。以河流扩散波方程作为模型中的河流边界,取代传统模型中的水位和流量边界。通过模拟河水流量和水位变化模拟地下水与河水之间水量交换,评价地下水开采量。为验证方法合理性,将第一类定水头边界模型和扩散波方程边界耦合模型的评价结果进行对比。结果表明,按耦合模型和第一类定水头边界模型评价本区地下水可开采量分别为2 733万m^3/a、3 942万m^3/a,而本区的年径流总量为3 120万m^3/a;传统的第一类定水头边界模型评价的地下水可开采量超过了流域年径流量,而耦合模型评价的结论更为合理。At present,the evaluation of riverside water source exploitation based on numerical models often takes river water as the first type of fixed water head boundary,which has certain defects in theory because the river is regarded as an infinite water source.In this paper,the river diffusion wave equation was used as the river boundary in the model to replace the water level and flow boundary in the traditional model.Groundwater exploitation was evaluated by simulating river water flow and water level changes and setting the permeability of the riverbed to simulate the exchange of water between groundwater and river water.In order to verify the rationality of the method,the evaluation conclusions of the first type of fixed head boundary model and those of the diffusion wave equation boundary model.The results show that the exploitable amount of groundwater in this area was estimated to be 27.33 million m^3/a and 39.42 million m3/a according to the coupling model and the first type of fixed head boundary model,while the total annual runoff in this area was 31.2 million m^3/a.Exploitable amount of groundwater evaluated by the traditional first type fixed head boundary model exceeds the annual runoff of the basin,and the conclusion of the coupled model evaluation is more reasonable.

关 键 词：傍河开采 河流边界 河流扩散波方程 地表水地下水耦合模型 

分 类 号：TN929.5[电子电信—通信与信息系统]