Geomechanics and Geotechnics

Deichbauwerke

Increasing global climate change affects not only temperature but also the sea level and the frequency and amount of precipitation as well. These factors increase the risk of flooding in coastal and domestic river or canal areas. The excessive flooding mainly affects the dike structures built in these areas. So, the rehabilitation and fast stabilization of the dike is very important to avoid the economic losses incurred by dike failures.

The aim of this project is divided into two steps; (1) to develop the materials based on Acrylate-Gel with rapid stabilization and injection technique, (2) to develop new monitoring method for temporary or permanent use based on dynamic behavior of dike system. The target features of developed materials are fast stabilization, quick sealing of hydraulic path, curing in water, long-term stability, high mechanical resistance and environmental compatibility. The first aim will be achieved by conducting extensive laboratory test as well as field test.

In order to be able to detect and derive the general state of a dike, a new way of monitoring method based on dynamic structural analysis of the dyke will be developed. The background assumes that the eigenform, the vibration amplitudes and the damping, dynamic vibration measurements will be changed due to the ongoing changes in the three-substance system (water, solids and air) in the dike due to moisture, erosion, suffusion, rigidity, etc. After injection of the hydraulic barrier and later the consolidation, significant changes in the dynamic response of the dike should be visible, so that the measure can be monitored.

Project Partners:

  • Kiel Univeristy
  • IAB-Institut für Angewandte Bauforschung Weimar GmbH
  • Köster Bauchemie AG
  • Heinz Werner GmbH Aschara

Project duration: May 2019 - March 2022