NDLI: Rainfall infiltration-induced groundwater table rise in an unsaturated porous medium

Content Provider	Springer Nature Link
Author	Wu, L. Z. Selvadurai, A. P. S.
Copyright Year	2015
Abstract	Increased rainfall associated with climate change is becoming a common occurrence and can lead to a variety of geoenvironmental hazards. Infiltration during rainfall and deformations of a soil mass are coupled, and the water table can easily experience a rise during these events. A study of the coupling process is important to increase our knowledge concerning the impact of a water level rise on the environment. Based on the theory of seepage and flow in porous media, the theory of elasticity and the soil–water characteristic curve, a two-dimensional hydro-mechanical model for an unsaturated porous medium is developed and incorporated in the COMSOL Multiphysics$^{®}$ software. The numerical procedure is capable of considering the influences of the soil–water characteristic curve. The effects of varying the boundary conditions on the coupled unsaturated infiltration and deformation equations are investigated. The examples demonstrate that the coupling effects significantly influence the position of the groundwater levels. The rate of change in the water table is closely related to the coupled infiltration and deformation in an unsaturated porous medium.
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	2
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-01-06
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Unsaturated soil Hydro-mechanical coupling Water infiltration Water table fluctuations Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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