| Micromécanique et calcul des structures |  |
| Micromécanique et calcul des structures | |
| HAL: hal-00540350, version 1 |
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| International Journal for Analytical and Numerical Methods in Geomechanics 34 (2010) 91-110 |
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| Seismic stability analysis of piled embankments: a multiphase approach |
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| Patrick De Buhan 1Ghazi Hassen 1 |
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| (2010) |
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| The seismic stability analysis of an embankment lying over a soft foundation soil reinforced by a group of vertical piles is performed within the framework of the upper bound kinematic approach of yield design. The analysis is based on a previously developed 'multiphase' model of the reinforced ground, which explicitly accounts for the shear and bending resistances of the piles. Making use of appropriate failure mechanisms involving shear zones across which the reinforcements are continuously deforming, along with 'plastic hinge' surfaces, upper bound estimates to the critical seismic coefficient of the structure are derived. The results, which are confirmed by the simulations obtained from a finite element elastoplastic code, give clear evidence of the key role played by the bending strength capacities of the piles in ensuring the stability of the pile reinforced embankment. |
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| 1: | Laboratoire Navier |
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Ecole des Ponts ParisTech – CNRS : UMR8205 – IFSTTAR |
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| Multi-échelle |
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| Subject | : | Physics/Mechanics/Mechanics of the solides Engineering Sciences/Mechanics/Mechanics of the solides |
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| reinforcement – piled embankment – seismic analysis – yield design – multiphase model |
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| hal-00540350, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00540350 | |
| oai:hal.archives-ouvertes.fr:hal-00540350 | |
| From: Patrick De Buhan | |
| Submitted on: Friday, 26 November 2010 14:55:58 | |
| Updated on: Wednesday, 20 April 2011 21:54:52 | |
