Numerical Modelling of Tides in an Embankment Lifecycle Analysis
Numerical Modelling of Tides in an Embankment Lifecycle Analysis
With constant exposure to the natural environment, flood embankments tend to deteriorate over their design life. To predict the performance and deterioration rate of a flood embankment, a complete lifecycle analysis is necessary, usually performed with advanced finite element computations. Due to the complexities of the numerical model and the long timescale of decades involved in a lifecycle analysis, it is challenging to take into consideration the impact of the constant semidiurnal tidal changes on the embankment stability and serviceability. This paper first models the impact of semidiurnal tidal changes on a typical flood embankment in the Thames estuary using a fine time-scale of hourly incremental changes over the period of one month. Subsequently, a simplified tidal cycle over one month is developed, with the aim of replicating the overall impact of the semidiurnal tides over one month with larger increments of time, in order to optimise the computational effort.
Benjamin Wei Li Guo; Lidija Zdravkovic; Aikaterini Tsiampousi; Christian Onof; David Malcolm Potts
10th European Conference on Numerical Methods in Geotechnical Engineering (NUMGE2023)
7. Dams, embankments and slopes
https://doi.org/10.53243/NUMGE2023-354
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