Preliminary study of rainfall infiltration on slope using a new coupled surface and subsurface flow model

Yeou-Koung Tung*, Yih Feng Kwok, Wang Wai Charles Ng, Hua Zhang

*Corresponding author for this work

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)1347-1352
Number of pages6
JournalYantu Lixue/Rock and Soil Mechanics
Volume25
Issue number9
StatePublished - 1 Sep 2004

Keywords

  • Numerical simulation
  • Rainfall infiltration
  • Surface flow
  • Transient seepage

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