TIME SERIES STABILITY ANALYSIS OF A REINFORCED SOIL WALL COLLAPSED BY HEAVY RAIN

Abstract

Recently, record-breaking short-duration heavy rainfall has caused extensive damage to soil structures. Reinforced soil walls have also been deformed by heavy rain, and countermeasures are urgently needed. In this study, alternating seepage flow and stability analyses evaluated the time series stability of a reinforced soil wall that collapsed due to Typhoon No. 2 in 2011. The results of the seepage flow and stability analysis revealed numerically that the stability of the reinforced soil wall was reduced by the overflow of water from the surface drainages.