Chapter
Jun 20, 2012
Numerical Study of Rainfall Infiltration in Unsaturated Slopes
Publication: Embankments, Dams, and Slopes: Lessons From the New Orleans Levee Failures and Other Current Issues
Abstract
This paper utilizes the finite element method for obtaining the response of unsaturated infinite slopes to rainfall infiltration. Water flow is modeled using Richards' equation and the hydraulic properties of the soil are assumed to follow Brooks and Corey relationships. A representative two-dimensional periodic cell of a shallow infinite slope is considered. Periodic boundary conditions are then enforced at the two lateral sides of the cell to account for the lateral extension of the slope. The periodic domain is discretized into a relatively fine mesh to accurately capture the propagation of the wetting front. Transient solution for water flow in unsaturated soils is then obtained and a number of water flow characteristics are presented.
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Information
Published In
Embankments, Dams, and Slopes: Lessons From the New Orleans Levee Failures and Other Current Issues
Pages: 1 - 10
Copyright
© 2007 American Society of Civil Engineers.
History
Published online: Jun 20, 2012
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ASCE Technical Topics:
- Analysis (by type)
- Climates
- Engineering fundamentals
- Environmental engineering
- Finite element method
- Flow (fluid dynamics)
- Fluid dynamics
- Fluid mechanics
- Geomechanics
- Geotechnical engineering
- Hydrologic engineering
- Hydrology
- Infiltration
- Meteorology
- Methodology (by type)
- Numerical analysis
- Numerical methods
- Precipitation
- Rainfall
- Slopes
- Soil mechanics
- Soil properties
- Water and water resources
- Water flow
Authors
Affiliations
Department of Civil and Environmental Engineering, Tulane University, 6823 St. Charles Ave, New Orleans, LA 70118.E-mail: [email protected]
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