摘要
本文用双重介质理论,在天然裂隙系统中对其裂隙域和孔隙岩块域建立了二维水流和污染质运移模型。讨论了岩块为斜方体、椭园柱体和任意不规则几何形态条件下,耦合项(Γ)的表达式及计算方法。分别对流速、弥散度、孔隙度等因素对污染质运移的控制和影响进行了定量分析。最后,模拟了济南东郊约85km^2岩溶含水层中Cl^-离子的运移情况,取得了比较满意的结果。
On the basis of dual-media theory, two-dimensional models of water flow and pollutant migration are established for natural fractural systems both in their fracture domain and porous rock mass domain.Expression formulae and calculation methods of the coupling term(r)are discussed separately for cases when the rock mass is of parallelepiped shape, elliptic cylinder shape or irregular shape. Quantitative analyses are made separately for the control and influence of factors like flow speed, diffusivity and porosity on pollutant migration. Finally, the migration of Cl^- ions in a karstic aquifer of about 85km^2 area in the eastern suburb of Jinan city is simulated, in which rather satisfactory results are obtained.
出处
《水文地质工程地质》
CAS
CSCD
北大核心
1989年第2期16-20,共5页
Hydrogeology & Engineering Geology
