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Seepage is the main problem of earth dams; most failures are occurred due to excessive amount ofseepage. In zoned earth dams clay core is provided to minimize seepage quantity and its dimensions andshape has great influence on seepage quantity. In this study seepage through earth dam with vertical andslanting core case were analyzed for different s...
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Citations
... Zaid and Basim (2022) performed tests comparing seepage in zoned dams using various core additives to determine sandy and silty soil permeability [18]. Arkan et al. (2023) numerically compared seepage responses to varied zoned dam core properties [4],. Collectively, these rigorous studies have compellingly advanced knowledge and modeling of critical earth dam seepage factors through empirical and numerical analyses. ...
This paper relates to the investigation of the amount of seepage discharge and the water level height out of the central core in the zoned earth-fill dam using the finite element procedure by Geo Studio-SEEP/W software. The investigation models were carried out in two shapes of the central core, the rectangular and the wedge shapes, by 200 miscellaneous models. For each model, seepage discharge and height of water level out were determined. Investigation results were examined using the artificial neural network technique (ANN) to demonstrate the influence weight of each independent variable (geometry and characteristics) on the output-dependent variables results using the statistical software SPSS. Core material hydraulic conductivity had the highest impact on seepage discharge and water level height while dam upstream slope had the least impact on them. Two statistical empirical equations were developed using multiple nonlinear regression for both the seepage discharge and the height of water level out using the SPSS software. The recommended equations were also verified by comparing their results with the results of 25% of the models analyzed by Geo Studio software. They showed great agreement that the correlation coefficient (r2) was 97.3% for the seepage discharge equation and 96.6% for the height of the water level-out equation.
