Centrifuge modelling of embankment overtopping
Centrifuge modelling of embankment overtopping
The mechanisms which take place at the instant of dam overtopping leading to an eventual breaching and failure depend on many factors breach dimension, time, soil conditions, reservoir size and inflow, and overflow depth are some of the many variables which contribute to the severity of overtopping failures in dams. Centrifuge tests can be beneficially used for parameter studies where material properties and behavior depend on both variation in boundary loads and conditions. To examine embankment overtopping a series of five centrifuge tests were conducted and compared to large scale testing conducted by Hanson et al. (2005). An examination of the scaling laws associated with time was performed comparing the width of headcut at the crest of the embankment between the two sets of data. Once a time factor is established an analysis of the erosion rate and cumulative volume loss was conducted.
A. Bowman; Andrew Trautz; John Murphy; J. Westcott; Clint Barela; Ryan Bockman
5th European Conference on Physical Modelling in Geotechnics (ECPMG2024)
New facilities, new equipment, measuring techniques
https://doi.org/10.53243/ECPMG2024-113
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