Abstract
A fully coupled numerical method is presented for the analysis of the pumping of groundwater, taking into account the drawdown of the water table. The surface subsidence due to pumping is first studied assuming that the water table is not lowered as the groundwater is withdrawn. This solution is then compared with the solution for the case in which the drawdown of the water table is considered. Extensive parametric studies were carried out to provide non-dimensionalized design charts for surface subsidence and drawdown of the water table due to pumping. L'article présente une méthode numérique permettant d'analyser le pompage des eaux souterraines en prenant en compte le rabattement de la surface libre de la nappe. La subsidence en surface du sol, due au pompage, est étudiée en supposant que la surface piézomètrique ne baisse pas au fur et à mesure que l'eau est pompée. Cette solution est ensuite comparée à la solution obtenue avec un rabattement de la surface piézomètrique. Des études paramétriques extensives ont été réalisées pour obtenides abaques adimensionnels donnant la subsidence de la surface du sol et le rabattement de la nappe dûs au pompage.
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