Multiple Flood as the Cause of Failure of Engineering Structures in River Flows

Proceedings of International Scientific Conference People, Buildings and Environment 2012 2012
Gints Jaudzems, Jeļena Govša, Boriss Gjunsburgs

The scour development with time during multiple floods, equilibrium stage and the assessment of flood damage risk for engineering structures have been investigated. A method for computing scour development with time at engineering structures during multiple floods was used. The test confirmation of the method allows as to perform computer modelling of scour processes and to estimate the influence of floods with different probability, duration, sequence and frequency on the depth of scour. It was found that the scour parameters increase with decrease in probability and with increasing duration and frequency of the floods. The sequence of floods can increase or reduce the scour development with time, depending on their probability. The successive floods of the same probability considerably increase the value of the scour depth.

Keywords
Hydrograph, scour, modelling, multiple floods

Jaudzems, G., Govša, J., Gjunsburgs, B. Multiple Flood as the Cause of Failure of Engineering Structures in River Flows. In: Proceedings of International Scientific Conference People, Buildings and Environment 2012, Czech Republic, Lednice, 7-9 November, 2012. Brno: Brno University of Technology, 2012, pp.548-557. ISBN 978-80-214-4618-2. ISSN 1805-6784.

Publication language
English (en)