两种典型边界条件下的趵突泉泉域水均衡分析  

Analysis of water balance in Baotu Spring basin under two typical boundary conditions

作　　者：束龙仓[1] 张曼琦 李虎 倪寒茜 武朝军 陈媛 王小博[1] 余亚飞 SHU Longcang;ZHANG Manqi;LI Hu;NI Hanxi;WU Zhaojun;CHEN Yuan;WANG Xiaobo;YU Yafei(College of Hydrology and Water Resources,Hohai University,Nanjing 210098,China;Jinan Rail Transit Group Co.Ltd,Jinan 250014,China)

机构地区：[1]河海大学水文水资源学院,南京210098 [2]济南轨道交通集团有限公司,济南250014

出　　处：《南水北调与水利科技（中英文）》2021年第3期427-436,445,共11页South-to-North Water Transfers and Water Science & Technology

基　　金：国家自然科学基金(41172203)。

摘　　要：以趵突泉泉域为例,采用水量均衡法和数值法两种方法,对两种典型边界条件下的水均衡进行计算,结果表明:在对断裂-分水岭边界确定的趵突泉泉域进行数值模拟时,需要充分考虑地表水与地下水之间密切的水力联系以及两者之间的转化关系,对降水入渗补给量进行合理折算,提高水均衡计算的准确性。水量均衡法结果表明断裂边界泉域与断裂-分水岭边界泉域的均衡差分别为3626.0万m^(3)/a和3061.4万m^(3)/a;而利用数值法,均衡差分别为4467.1万m^(3)/a和3699.6万m^(3)/a。研究结果为趵突泉泉域水资源评价工作提供了科学依据。Accurate understanding of groundwater balance in karst area can provide technical guarantee for scientific evaluation of groundwater resources.To study the water balance in karst area,it is necessary to clarify the boundary conditions and hydrogeological properties of karst water system.However,due to the high complexity of geological structures and karstic development in the karstic area,it has become one of the difficult problems in current research.The Baotu Spring basin is a typical karst basin in northern China.At present,there are two different views on the east and west boundaries of the Baotu Spring basin.If the boundary of the Baotu Spring basin is unclear and its hydrogeological property is unknown,the calculation of water balance in the Baotu Spring basin can not be correctly carried out.The research on the boundary conditions and the water balance of Baotu Spring basin under two kinds of boundary conditions were carried out.The main difference between the east and west boundaries is the area surrounded by the fault and the watershed,and the main recharge is the infiltration from precipitation.According to the actual hydrogeological conditions in the study area,a numerical model is established to simulate the conversion from precipitation to different types of runoff in the fault-watershed area to obtain its water exchange law.According to the obtained conversion law,the water balance method is used to calculate the replenishment and discharge in the study basin,and the water balance results of the two boundary conditions are obtained.On the other hand,based on the same law of water exchange,combining with the exploration data and drilling data of the Baotu Spring basin,the numerical simulation models of fault-boundary spring basin and fault-watershed boundary spring basin are established by the FEFLOW software,and the water balance of the two kinds of boundary conditions is calculated.The calculation results provided by the water-balance method and numerical simulation model are compared and analyzed.

关 键 词：岩溶泉域 边界条件 水均衡 数值法 

分 类 号：TV213[水利工程—水文学及水资源]