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Dynamic earth pressure on rigid retaining walls induced by a neighboring machine foundation,by the meshless local Petrov-Galerkin method |
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| Authors: | Mehdi Veiskarami Arash Bahar Erfan Zandi Lak |
| Affiliation: | 1. Geotechnical Engineering Division, Department of Civil Engineering, University of Guilan, Shiraz, Iran 2. Department of Civil and Environmental Engineering, School of Engineering No. 1, Shiraz University, Shiraz, Iran 3. Structural Engineering Division, Department of Civil Engineering, University of Guilan, Shiraz, Iran |
| Abstract: | Dynamic earth pressure induced by machine foundations on a neighboring retaining wall is analyzed with emphasis on factors which control the intensity and location of the design forces. The meshless local Petrov-Galerkin(MLPG) method is used to analyze the problem for a variety of retaining wall and machine foundation geometries. The soil medium is assumed to be homogeneous and visco-elastic. The machine foundation is idealized as a harmonic sinusoidal dynamic force often encountered in practice. A number of analyses have been made to reveal the effect of the loading frequency, the location and size of the foundation and the soil shear wave velocity on the distribution and magnitude of the dynamic earth pressure. Results indicate that there is a critical frequency and a critical location for which the passive pressure takes the maxima in the entire duration of the dynamic load. |
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