For simplicity, a conventional approach in modeling subsurface transient flow in slopes is to uncouple the infiltration and runoff processes during a storm event. In reality, the time variation of infiltration amount during a storm event cannot be estimated easily unless interactions between rainfall, infiltration, and surface runoff processes are properly considered and modeled. A new coupled surface-subsurface flow model is developed to consider the interaction between surface and subsurface flows during a transient seepage analysis of a rainfall-infiltrated slope. Comparisons between computed pore water pressure distributions from the conventional approach and the new model are illustrated.
|Number of pages||6|
|Journal||Yantu Lixue/Rock and Soil Mechanics|
|State||Published - 1 Sep 2004|
- Numerical simulation
- Rainfall infiltration
- Surface flow
- Transient seepage