漏水性帯水層における井戸からの揚水による地下水の定常流動について(第1報) : 不圧-被圧系漏水性帯水層の場合

概要

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The simultaneous differential equations are set up for steady flow to a well in a leaky confined aquifer overlying unconfined one. In these equations, the well loss is considered in boundary condition at the well. These differential equations are numerically calculated by Runge-Kutta method. Several experiments are performed for proving this numerical solution. These experiments are divided into two main classes. The first class is the case of same head in the boundary and the second class is the one of the different head in the boundary. Applying this numerical solution to these experiments, we may conclude as follows : 1) The numerical results agree well with the experimental values. 2) The coefficients of permeability in each aquifers and aquiclude can be estimated by using this numerical solution. 3) The rate of reakage water into aquifer can be determined quantitatively. 4) In the case of the different head in the boundary, the piezometric head distribution shows the phenomenon like the mound. This phenomenon can be calculated by this numerical solution.
東海大学の論文