Numerical simulation of nonlinear consolidation problems by models based on the network method
The nonlinear consolidation problem in saturated soils, for any type of constitutive depen- dences of the hydraulic permeability and the void ratio on the effective pressure, has been numerically simulated by the network method. Three different network models, based on logarithmic and/or potential c...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universidad Politécnica de Cartagena(UPCT) |
| Repositorio: | Repositorio Digital UPCT |
| OAI Identifier: | oai:repositorio.upct.es:10317/13193 |
| Acceso en línea: | http://hdl.handle.net/10317/13193 https://www.sciencedirect.com/science/article/pii/S0307904X19300204?via%3Dihub |
| Access Level: | acceso abierto |
| Palabra clave: | Network model Nonlinear consolidation Extended models Numerical solution Ingeniería del Terreno 33 Ciencias Tecnológicas 3305 Tecnología de la Construcción 3305.31 Mecánica del Suelo (Construcción) |
| Sumario: | The nonlinear consolidation problem in saturated soils, for any type of constitutive depen- dences of the hydraulic permeability and the void ratio on the effective pressure, has been numerically simulated by the network method. Three different network models, based on logarithmic and/or potential constitutive dependences, called the Davis and Raymond, Juárez-Badillo and Cornetti and Battaglio models, as well as a fourth one with dependences in tabulated form, are solved. In addition, new network models that delete the two restric- tive hypotheses assumed by these authors are presented. These hypotheses are the influ- ence of the void ratio changes in the term of contraction of the governing equation and the influence of the thickness change of the volume element as consolidation progresses. Only a few rules based on elementary theory of circuits are required for the design of the models, whose solution is reliable with relatively small grids and computational times. Af- ter verifying the results of the network method with the solutions of the classic authors, the extended models have been used to address a real case of consolidation. |
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