Abstract
A reinforced soil retaining wall (RSRW) collapsed due to Typhoon No. 2 that made landfall in May 2011. The cause of the collapse is presumed to be that the water level in the back of the RSRW rose during rainfall, causing excessive water pressure to act on the RSRW, resulting in the reinforcement rupturing and reducing its stability. In this study, the above presumption was verified using a numerical approach. Two-dimensional seepage analysis was conducted to determine the water content of the backfill. Then, the safety factor of the RSRW was calculated by stability analysis. Numerical analysis revealed that the backwater level of the RSRW increased due to the heavy rainfall in May 2011, and that the stability of the RSRW decreased.
https://ror.org/05xszy717 
