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Seismic Stability Analysis of Homogeneous and Layered Soil Slopes by LEM
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 117 - Number 22 |
| Year of Publication: 2015 |
| Authors: Md. Mahmud Sazzad, Swapon Mazumder, Md. Moniruzzaman Moni |
10.5120/20685-3539
|
Md. Mahmud Sazzad, Swapon Mazumder, Md. Moniruzzaman Moni . Seismic Stability Analysis of Homogeneous and Layered Soil Slopes by LEM. International Journal of Computer Applications. 117, 22 ( May 2015), 12-17. DOI=10.5120/20685-3539
Abstract
The stability of slopes is a major concern in the field of geotechnical engineering. Usually two-dimensional analyses based on limit equilibrium methods are implemented in this field due to their simplicity and effectiveness. In this paper, the stability of model soil slopes for homogeneous and layered soil with and without earthquake has been analyzed and the related results have been reported. It is noted that the factor of safety decreases with the increase of horizontal seismic coefficent for both the slopes of homogeneous and layered soil. Horizontal seismic coefficent alone affects the stability of slope severely than the combined effect of horizontal and vertical seismic coefficients. The effect of slope angle and cohesion of soil on the stability of slopes have also been reported in this study. The factor of safety of slope increases with the increase of the ratios of cohesion of two soil layers ( is variable while is constant) up to a certain value and beyond that, the factor of safety remains constant.
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