Hydrological-Geotechnical Model to Assess the Extreme Rainfall-Induced Shallow Landslides

Thapthai CHAITHONG, Daisuke KOMORI
2017 Journal of Japan Society of Civil Engineers Ser G (Environmental Research)  
A physically based model for assessment of shallow landslides triggered by heavy rainfall was analysed, applied, and validated to a case in the Khao Phnom, Krab i, Thailand. Th is model is based on the coupling of the hydrological model with an infin ite slope stability model. Modified Green-A mpt model and steady groundwater flo w model were used in the hydrological model. The d istributions of rain fall intensity were obtained fro m eighteen rain gauges around the landslides. The model pred
more » ... tion capability was evaluated by using the receiver operating characteristic (ROC) curve. Considering to the analysis results, it was found that the model can predict the unstable areas (FS<1) where occur the hillslopes surrounding the peak of the mountain. The accuracy of the model was 0.737 for the Khao Phnom landslide.
doi:10.2208/jscejer.73.i_223 fatcat:miyakgwvvnb7tg64bcpschqxtm