3ZM-Grimex
Fraunhofer ITWM
Project data
Title: Development of a 3-Zone model for groundwater and infrastructure management after extreme flood events in urban areas
Period: 01.03.2005 - 29.02.2008
Subproject 5
Project number: 02WH0561
funded by BMBF
Project leader: Forschungszentrum Karlsruhe (PTKA)
Projekt outline
The flood events of the past years have caused significant damage in urban areas. For example, damages worth 1 billion Euro were caused by the August 2002 flood in the city of Dresden (Germany), which represents approximately 10% of the total damage in Germany caused in this flood event. The damages were mostly due to the waters of the Elbe river and the Weißeritz creek and with no less degree due to a dramatic increase of the groundwater level which, moreover, remained extraordinarily high over long period of time. It revealed, that beside the surface flow, the absorption and distribution of surface water in the groundwater as well as the infiltration of the water retained in the upstream area and the distribution of the surface water by the sewage system to areas outside of the area directly flooded have contributed to an increase of damages.
The objective of the procect 3ZM-Grimex is to model the interaction between surface flow, sewage system and groundwater, and to simulate the coupled processes in a software tool. The results of simulations for different scenarios shall be used to develop strategies for the protection of infrastructure on the surface and in the subsurface. 3ZM-Grimex part of the Cluster Programme Rimax of BMBF(Germany).
