摘要
本文采用有限单元法对广西柳州西部水源地进行地下水资源评价。该水源地是由复杂的岩溶含水层构成。文中正确地建立了非均质承压-无压流的数值模型;首次提出对非完整河渗透阻力的处理方法。利用模型求得各区的含水层导水系数(T),重力给水度(μd),弹性给水度(μe),降雨入渗系数(α),稻田入渗系数(Sd),以及池塘入渗系数(ST)等水文地质参数。采用不同的开采方案,预测了地下水位自1987-2000年的变化趋势,取得了满意的结果。
The method of Finite Element has been adopted to evaluated the groundwater resources of Western Liuzhou district, which consists of very complex karst aquifers.The numerical model of heterogenous confined -inconfine flow has established correctly and the treatment of seepage resistance of the partial penetrating river (Liujiang River) was first reported. Most hydrogelogical parameters, such as transmissivities (T), specific yields (ud, ue), infiltration coefficients of the rainfall, ricefield, pond, are computed. The variations of groundwater are satisfactorily predicted from the year 1987 to 2000 by different schemes of exploitation.
