Ground subsidence due to uniform fluid extraction over a circular region within an aquifer. (April 2015)

• Record Type: Journal Article
• Authors: Selvadurai, A.P.S.; Kim, Jueun
• Is Part Of: Advances in water resources. Volume 78(2015)
• Page Start: 50
• Page End: 59
• Publication Date: 2015-04
• Subjects: Biot poroelasticity -- Fluid extraction -- Ground subsidence -- Time-dependent deformations; Hydrology -- Periodicals; Hydrodynamics -- Periodicals; Hydraulic engineering -- Periodicals; 551.48
• DOI: 10.1016/j.advwatres.2015.01.015
• Languages: English
• ISSNs: 0309-1708

Abstract

Highlights: Analytical solution for poroelastic subsidence due to circular fluid extraction. Numerical results for ground subsidence with depth and area-dependent extraction zone. Comparative results for circular extraction and point sink problems. Validation of computational approach using analytical results. Abstract: This paper examines the ground subsidence caused by the uniform extraction of fluids from a disc-shaped region located within a poroelastic halfspace. Biot's theory of poroelasticity is used to examine the problem. The fluid extraction over the circular region at the interior of the poroelastic domain induces time-dependent axisymmetric surface settlements. The theoretical results are also used to examine the accuracy of a multi-physics computational scheme that can be used to examine more complex geological settings.