Numerical study on rainfall infiltration in rock-soil slop

Yuewu Liu*, Qingquan Liu, Huixin Chen, Xin Gong, Dawei Zhang, Deliang Yao, Lianxiang Li

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A mathematical model for the rain infiltration in the rock-soil slop has been established and solved by using the finite element method. The unsteady water infiltrating process has been simulated to get water content both in the homogeneous and heterogeneous media. The simulated results show that the rock blocks in the rock-soil slop can cause the wetting front moving fast. If the rain intensity is increased, the saturated region will be formed quickly while other conditions are the same. If the rain intensity keeps a constant, it is possible to accelerate the generation of the saturated region by properly increasing the vertical filtration rate of the rock-soil slop. However, if the vertical filtration rate is so far greater than the rain intensity, it will be difficult to form the saturated region in the rock-soil slop. The numerical method was verified by comparing the calculation results with the field test data. Copyright by Science in China Press 2005.

Original languageEnglish
Pages (from-to)33-46
Number of pages14
JournalScience in China, Series E: Technological Sciences
Volume48
Issue numberSUPPL.
DOIs
Publication statusPublished - Nov 2005
Externally publishedYes

Keywords

  • Finite element method (fem)
  • Infiltration
  • Rainfall
  • Rock-soil block
  • Water content

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