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http://dx.doi.org/10.7843/kgs.2022.38.11.19

Applicability of Practical Reliability Analysis to Develop Fragility Curves for Levee  

Cho, Sung-Eun (School of Civil and Environmental Engrg. & Construction Engrg. Research Institute, Hankyong National Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.38, no.11, 2022 , pp. 19-30 More about this Journal
Abstract
Developing a fragility curve for the levee requires calculating the probability of failure according to the water level for each failure mode. Since probabilistic analysis requires iterative analysis to account for variability in geotechnical parameters, the fragility curve development inevitably requires many iterative calculations. Therefore, approximate probabilistic analysis techniques are usually applied to reduce the amount of calculation in developing the levee fragility curve. However, their accuracy has not been determined clearly. This study calculated the failure probability of slope and piping failure mode for an actual levee through probabilistic methods, such as FOSM, PEM, and MCS. Then, the fragility curve of the levee according to the water level was developed. The results of the approximate methods: FOSM and PEM, were compared with those of MCS to evaluate the applicability to the fragility curve for slope and piping failure mode.
Keywords
Fragility curve; Levee; Reliability analysis; Piping; Slope stability;
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Times Cited By KSCI : 2  (Citation Analysis)
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