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http://dx.doi.org/10.3741/JKWRA.2006.39.3.241

Suitability Analysis of Numerical Models Related to Seepage through a Levee  

Im, Dong-Kyun (Water Resources Research Dept., Korea Institute of Construction Technology)
Yeo, Hong-Koo (Water Resources Research Dept., Korea Institute of Construction Technology)
Kim, Kyu-Ho (Water Resources Research Dept., Korea Institute of Construction Technology)
Kang, Jun-Gu (Water Resources Research Dept., Korea Institute of Construction Technology)
Publication Information
Journal of Korea Water Resources Association / v.39, no.3, 2006 , pp. 241-252 More about this Journal
Abstract
Numerical models for seepage analysis are useful tools to analyze problems and design protection techniques that are related to seepage through a levee. Though every model may have its own limitations and shortcomings, there were no generalized verifications or calibrations for the commercial models. It means that users can run the model and get the result without understanding nor taking any enough training. This paper Investigates applicability and suitability of some seepage numerical models by comparing analytical solutions with experiments in the user's viewpoint. The results showed that it is more desirable to use analyses with unsaturated-unsteady condition rather than those with saturated-steady conditions, since seepage phenomenon of real levees are changed according to water level and soil property. This study also compared the calculated unsteady solutions with the calculated steady solutions for the levee at Koa of the Nakdong River The comparison revealed that as the result, the safety factor of $2.0{\sim}3.5$ has the same effects for seepage protection techniques when they are designed on the basis of steady-state analysis.
Keywords
levee; seepage; experiment; numerical model;
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