Random Articles
Reseach Article
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.
References
- Abramson, L. W. , Lee, T. S. , Sharma, and Boyce, G. M. 2002. Slope Stability Concepts, Slope Stabilization and Stabilization Methods, Second edition, published by John Willey & Sons, Inc. , pp. 329?461.
- Aryal, K. P. 2006. Slope stability evaluations by limit equilibrium and finite element methods. Doctoral thesis at Norwegian University of Science and Technology.
- Bishop A. W. 1955. The use of slip circles in stability analysis of slopes, Geotechnique, Vol. 5 No. 1, pp. 7?17.
- Chatterjee, K. and Choudhury, D. 2012. Seismic stability analysis of soil slopes using analytical and numerical approaches. ISET Golden Jubilee Symposium. Paper No. C005.
- Gao, F. and Lie, W. 2013. Study on effect of seismic action direction on slope stability. International Efforts in Lifetime Earthquake Engineering, pp. 656-662.
- GEO5 v18. 2014. Users manual, Fine software company, Czech Republic.
- Janbu, N. 1973. Slope Stability Computations. Embankment Dam Engineering, Casagrande Volume, pp. 47?86.
- Kandolkar, S. S. , Aldonkar, S. S. and Savoikar, P. P. 2010. Rational Pseudo-static stability analysis of embankments, Indian Geotechnical Conference, India, pp. 135-138.
- Miraboutalebi, M. , Askari, F. and Farzaneh, O. 2011. Effect of bedrock inclination on seismic slope stability according to Iran seismically data, International Journal of Civil Engineering, Vol. 9, No. 4, pp. 247-254.
- Melo, C. and Sharma, S. (2004). Seismic coefficients for pseudostatic slope analysis, 13th World Conference on Earthquake Engineering, Canada, Paper ID No. 369.
- Tan, D. 2006. Seismic slope safety – Determination of critical slip surface using acceptability criteria. Doctoral thesis at Imperial College University of London.
- Taylor, M. J. and Burns, S. F. 2005. Slope and seismic stability of Castle Lake Debris Dam, St. Helens, Washington, Landslide and Avalanches: ICFL, Norway, Edr. Senneset, Flaateand Larsen.
Index Terms
Keywords