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Structural Engineering and Mechanics Volume 46, Number 6, June25 2013 , pages 775-790 DOI: https://doi.org/10.12989/sem.2013.46.6.775 |
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Deformation analysis of a geocell mattress using a decoupled iterative method |
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Ling Zhang, Minghua Zhao and Heng Zhao
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| Abstract | ||
| Deformation analysis is a major concern in many geotechnical applications. In this paper, the deformation behavior of a geocell mattress subjected to symmetric loads was studied. The mattress was idealized as an elastic foundation beam. The horizontal beam-soil interfacial shear resistances at the beam top and bottom sides were taken into account by assuming the resistances to be linear with the relative horizontal displacements. A decoupled iterative method was employed to solve the differential displacement equations derived from the force analysis of a beam element and to obtain the solutions for the deformations and internal forces of the geocell reinforcement. The validity of the present solutions was verified by the existing finite element method and power-series solutions. | ||
| Key Words | ||
| geocell mattress; Winkler foundation; beam-soil interfacial shear resistance; decoupled iteration method | ||
| Address | ||
| Ling Zhang, Minghua Zhao and Heng Zhao : College of Civil Engineering, Hunan University, 410082 Changsha, China | ||