Title :
Prediction and application for rain induced shallow landslides in natural catchments
Author :
Ran Qihua ; Su Danyang ; He Zhiguo
Author_Institution :
Dept. of Hydraulic & Marine Eng., Zhejiang Univ., Hangzhou, China
Abstract :
An improved infinite slope stability model (IISSM) driven by the comprehensive physics-based Integrated Hydrology Model (InHM) was reported. Slip surface is taken to be parallel to the hydraulic gradient without assumption of slip depth and profile. No pre-processing of the input DEM is needed since flat area and pits are allowed to keep natural hydrologic response. The presented approach has been applied in a small catchment located in the southeast of Zhejiang province, China. Time-space distribution of landslides susceptibility and catchment stability prediction function has been analyzed under different rainfall characteristics. The results suggest that this model could be an efficient and valid tool for landslides prediction.
Keywords :
digital elevation models; geomorphology; hydrological techniques; rain; China; Zhejiang province; catchment stability prediction function; comprehensive physics-based integrated hydrology model; flat area; hydraulic gradient; improved infinite slope stability model; input DEM; landslide prediction; landslide susceptibility; natural hydrologic response; physics-based hydrology model; rain induced shallow landslides; rainfall characteristics; slip depth; slip profile; slip surface; time-space distribution; Geology; Hazards; Hydrology; Numerical models; Soil; Stability analysis; Terrain factors; catchment; infinite slope stability model; landslides prediction; physics-based hydrology model; rainfall; slope stability;
Conference_Titel :
Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on
Conference_Location :
Lushan
Print_ISBN :
978-1-4577-0289-1
DOI :
10.1109/ICETCE.2011.5775333
