ABSTRACT
The topic of the examinations deals with the numeric methods and a method comparison of the ground water modeling of the infiltration of surface water. The preservation of the ground water balance sheets in connection with the required diminution of the drain crowds upper two-dimensionally drainage represents a major theme in all industrial nations. For this reason the infiltration by surface water is legally stipulated in Germany in different federal states. At the example of the most simple form of a hollow infiltration two mathematical or numerical models are introduced and their efficiency is compared. This is the set of rules ATV and the RICHARDS method. The comparison shows the efficiency of the hollow infiltration which is partly confirmed in insitu measurements. The causes of the differences are partly also in attemps in the model attempts as these don’t appear in nature, however. Therefore it gets required to adapt the models in their form. Horizontal flow processes should be included also. The permeability coefficients kv and kh permeability of the soil are to use enriched liquid under consideration of the infiltration ones by air in form of the rain water far.
