land subsidence caused by a single water extraction well and rapid water infiltration
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2015
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Abstract
Nowadays several parts of the world suffer from land subsidence. This setting
of the earth surface occurs due to different factors such as earth quakes,
mining activities, and gas, oil and water withdrawal. This research presents
a numerical study of the influence of land subsidence caused by a single
water extraction well and rapid water infiltration into structural soil
discontinuities. The numerical simulation of the infiltration was based on a
two-phase flow-model for porous media, and for the deformation a Mohr–Coulomb
model was used.
A two-layered system with a fault zone is presented. First a single water extraction well is simulated producing a cone-shaped (conical) water level depletion, which can cause land subsidence. Land Subsidence can be further increased if a hydrological barrier as a result of a discontinuity, exists. After water extraction a water column is applied on the top boundary for one hours in order to represent a strong storm which produces rapid water infiltration through the discontinuity as well as soil deformation. Both events are analysed and compared in order to characterize deformation of both elements and to get a better understanding of the land subsidence and new fracture formations.
A two-layered system with a fault zone is presented. First a single water extraction well is simulated producing a cone-shaped (conical) water level depletion, which can cause land subsidence. Land Subsidence can be further increased if a hydrological barrier as a result of a discontinuity, exists. After water extraction a water column is applied on the top boundary for one hours in order to represent a strong storm which produces rapid water infiltration through the discontinuity as well as soil deformation. Both events are analysed and compared in order to characterize deformation of both elements and to get a better understanding of the land subsidence and new fracture formations.
| Reference Key |
martinez-noguez2015proceedingsland
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|---|---|
| Authors | ;I. Martinez-Noguez;R. Hinkelmann |
| Journal | gruppe interaktion organisation zeitschrift fur angewandte organisationspsychologie |
| Year | 2015 |
| DOI |
10.5194/piahs-372-33-2015
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| URL | |
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