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Excess pore water pressure due to ground surface erosion

TitleExcess pore water pressure due to ground surface erosion
Publication TypeJournal Article
Year of Publication2018
AuthorsGagniere S., Smith SGL, Yeh H.D
Date Published2018/09
Type of ArticleArticle
ISBN Number0307-904X
Accession NumberWOS:000438480400005
KeywordsBoost theorem; Engineering; Erosional unloading; flow; fluid pressures; Groundwater flow; Laplace transform; Mathematics; mechanics

The Laplace transform is applied to solve the groundwater flow equation with a boundary that is initially fixed but that starts to move at a constant rate after some fixed time. This problem arises in the study of pore water pressures due to erosional unloading where the aquifer lies underneath an unsaturated zone. We derive an analytic solution and examine the predicted pressure profiles and boundary fluxes. We calculate the negative pore water pressure in the aquifer induced by the initial erosion of the unsaturated zone and subsequent erosion of the aquifer. (C) 2018 Elsevier Inc. All rights reserved.

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