Experimental Study on Salt Intrusion in Unconfined Groundwater of Coastal Region

Abstract

The quality of groundwater in unconfied aquifers is going to become from bad to worse with the increase of the amounts of pumping for agriculture or fish farming. It is especially one the urgent problems to prevent from the saltwater intrusion into the aquifers in many coastal lowland.
In this study, it is tried experimentally to analyze the mechanisms of saline intrusion and to estimate the effects of its check.
The main subjects of consideration are as follows: 1) the calculation of the time-dependent flux of salinity and of the flow velocity of saltwater, 2) the estimation of the defensible effcts due to the artificial structures, and 3) the valuation of coefficients on the basis of the one-dimensional dispersion analysis.