Impact of Extreme Rainfall and Earthquake Events on Waterfront Landslide (PAP014380)

Código

PAP014380

Autores

Bin He

Tema

Land use and Floods, landslides and erosion

Resumo

Waterfront is the land area alongside a body of water (ocean, river, lake), such as a harbor, dockyard, riverbank, etc. It is well known that a majority of landslides occurred in waterfront area during heavy rainfall and earthquakes. This type of landslide causes tremendous disaster to riverbank, port and industrial facilities. However, little attention has been paid to geotechnical issues arising from what might be termed Waterfront landslide", which is a phenomenon in between the terrestrial slide and submarine slide. It presents the necessity of a new modelling technology for disaster risk preparedness which simulates initiation and motion of waterfront landslide. In this paper, the features and problems related to the waterfront landslide will be reviewed. The simulation model LS-RAPID, which was developed from the geotechnical model for the motion of landslides and new knowledge obtained from a series of new dynamic loading ring shear apparatus, will be introduced. The waterfront landslides are simulated for several cases of imaginary simple slopes. The performance of each process in the imaginary simple slopes will be examined under different conditions of earthquake and rainfall. The process of progressive landslide failure and development to a rapid landslide will be visualized in both two dimensions and three dimensions. The preliminary results of a computational study conducted to analyze waterfront landslide for several case studies will be then presented."