논문실적
| Development of time-variant landslide-prediction software considering three-dimensional subsurface unsaturated flow |
|---|
|
학술지명 elsevier
저자 노재경,김연수,노성진,김민석,이기하,비엣,안현욱
발표일 2016-08-15
|
|
An accurate landslide-susceptibility assessment is fundamental for preventing landslides and minimizing damage. In this study, a new time-variant slope-stability (TiVaSS) model for landslide prediction is developed. A three-dimensional (3D) subsurface flow model is coupled with the infinite slope-stability model to consider the effect of horizontal water movement in the subsurface. A 3D Richards' equation is solved numerically for the subsurface flow. To overcome the massive computational requirements of the 3D subsurface flow module, partially implicit temporal discretization and the simplification of firstorder spatial discretization are proposed and applied in TiVaSS. A graphical user interface and twodimensional data visualization are supported in TiVaSS. The model is applied to a 2011 Mt. Umyeon landslide in the Republic of Korea, and its overall performance is satisfactory. |
