E3S Web of Conferences
Volume 24, 2017AG 2017 - 3rd International Conference on Applied Geophysics
|Number of page(s)||8|
|Section||Numerical modelling in geoengineering|
|Published online||20 November 2017|
Numerical simulation of pore pressure changes in levee under flood conditions
AGH University of Science and Technology, 30-059 Krakow, Poland
2 Mineral and Energy Economy Research Institute, Polish Academy of Sciences, 31-261 Krakow, Poland
* Corresponding author: email@example.com
The article discusses the potential for using numerical simulation to assess the development of deformation and pore pressure changes in a levee as a result of the increase and decrease of the flood wave. The simulation made in FLAC 2D did not take into account the filter-erosion deformation associated with seepage in the levee. The simulations were carried out for a field experimental storage consisting of two combined levees, which was constructed with the help of homogeneous cohesive materials with different filtration coefficients. Calculated and measured pore pressure changes were analysed at 4 monitoring points. The water level was increased to 4 m in 96 hours and decreased in 120 hours. The characteristics of the calculated and measured pore pressure changes over time were similar. The maximum values of the calculated and measured pore pressure were almost identical. The only differences were the greater delay of the experimental levee response to changes in water level increase compared to the response of the numerical model. These differences were probably related to filtering-erosion effects during seepage in the levee.
© The Authors, published by EDP Sciences
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