A STUDY ON SEISMIC RESISTANCE REDUCTION OF EMBANKMENT DUE TO RAINFALL

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  • 降雨による盛土の耐震性低下に関する一考察

Abstract

Rainfall would reduce the seismic resistance of an embankment if the drainage system of the embankment is not enough; however, aseismic design of embankments does not consider this effect. Based on the seismic response calculation results using a FEM code ‘FLIP’ and the previous shaking table test results, the effect of rainfall on seismic performance of embankments was examined in this study. As a conclusion, the reduction of the soil cohesion of embankment by the seepage due to rainfall is very important.

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