块状岩溶承压含水层非稳定流数学模型的建立及应用  

Establishment and application of unsteady flow mathematic model in confined aquifer of massive karst

作　　者：马瑞杰[1] 张静[1] 

机构地区：[1]吉林大学数学学院,长春130026

出　　处：《世界地质》2009年第2期237-241,共5页World Geology

基　　金：十一五国家科技支撑计划重点项目(2006BAB04A09-02)

摘　　要：块状岩溶介质可视为双重孔隙介质,其含水层为承压含水层,水文地质模型概化为各向同性非均质。根据块状岩溶承压含水层地下水运动规律,建立二维承压含水层非稳定流数学模型,采用有限体积法对其求解,并以深圳葵涌区为例对模型进行识别和验证。结果表明:各时段的计算水位值与实测水位值非常接近,所建立的数学模型正确可应用。Karst massive medium can be regarded as dual porosity medium. Their aquifer is confined aquifer, and the hydrogeology model is isotropic and heterogeneous in type. According to the regulation of the groundwater movement in confined aquifer of karst massive, the authors establish an unsteady flow mathematic model of two-dimensional confined aquifer, using the finite element method to get the solution, and taking the Kuiyong district of Shenzhen City as an example to verify this model. The results show that calculated and measured water levels are quite close, and the mathematic model is valid.

关 键 词：块状岩溶 双重孔隙 有限体积法 承压含水层 计算水位 实测水位 

分 类 号：P642.254[天文地球—工程地质学] O241[天文地球—地质矿产勘探]