STUDY ON ISOTOPE MODEL OF DYKE LEAKAGE

摘要

Applying the methods of stable isotopes and hydrochemistry to study the dyke is an effective way. And the theory of environmental isotope and hydrochemistry applied to leakage study is described. As natural tracers, environmental isotope and hydrochemistry mark groundwater, river water and precipitation. By contrast of the composition of environment isotope and water chemistry in water, the relation between them can be determined to distinguish the replenishment resource of groundwater, the position and range of leakage, the stratum formation and so on. Few coupled models of isotope field have been given so far. After making some assumptions and simplifications, the following models of the leakage of dyke are deduced based on basic law of hydraulics principle. And the model is used to predict the leakage velocity based on the data of the location. These models' building makes it possible to simulate the leakage of dyke quantitatively and gives it a help to interpret more objectively and more sufficiently the information that included in the leakage of dyke.