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Finite element modelling for land displacements due to pumping. (English) Zbl 0869.73063
The objective is to develop a general Galerkin finite element model for the study of the behaviour of multi-dimensional land displacement due to pressure decline in aquifers. Saturated/unsaturated behaviour and isotropic/anisotropic properties of permeability are considered together with elasticity effects in the model. The change of body force in unconfined aquifers is also taken into account.
The model has been verified by comparing its simulation results with analytical solutions in three simplified cases. So, displacements in unsaturated media are simulated, the influences of boundary and of change in body force are demonstrated, and the effect of changes in stresses and displacement is illustrated.

74L10 Soil and rock mechanics
74L05 Geophysical solid mechanics
74S05 Finite element methods applied to problems in solid mechanics
76S05 Flows in porous media; filtration; seepage
86A05 Hydrology, hydrography, oceanography
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