A dual beam model for geosynthetic-reinforced granular fill on an elastic foundation
| Autor: | Wan-Huan Zhou, Lin-Shuang Zhao, Ka-Veng Yuen, Behzad Fatahi, Xi-Bin Li |
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| Rok vydání: | 2016 |
| Předmět: |
Timoshenko beam theory
Engineering business.industry Applied Mathematics 0211 other engineering and technologies Foundation (engineering) Stiffness 02 engineering and technology Structural engineering Finite element method Dual (category theory) Shear modulus 020303 mechanical engineering & transports Exact solutions in general relativity 0203 mechanical engineering Modeling and Simulation Modelling and Simulation medicine Mechanical Engineering & Transports Physics::Accelerator Physics Geotechnical engineering medicine.symptom business Beam (structure) 021101 geological & geomatics engineering |
| Zdroj: | Applied Mathematical Modelling. 40(21-22):9254-9268 |
| ISSN: | 0307-904X |
| DOI: | 10.1016/j.apm.2016.06.003 |
| Popis: | In this study, a new dual beam model was proposed for a geosynthetic-reinforced granular fill with an upper pavement. This dual beam model was subjected to a uniform surcharge loading and resting on an elastic foundation which was simulated by a Pasternak model. The upper pavement was modeled by an Euler–Bernoulli beam while the geosynthetic reinforced granular fill was simulated by a reinforced Timoshenko beam. The explicit derivation process for the behavior of this dual beam-foundation system was presented and an exact solution was obtained. A two-dimensional finite element analysis and a Pasternak model for simulating the granular fill were carried out to validate the reliability of the proposed dual beam model. A parametric analysis was put forward to investigate the behavior of this dual beam-foundation system. It was found that the length of the pavement structure and vertical uniform loading, the stiffness and shear modulus of the foundation soil had significant influences on the behavior of the dual beam-foundation system. |
| Databáze: | OpenAIRE |
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