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2019 | 126 | 118-135
Article title

Stability Analysis of Mahananda River Embankment in Bangladesh

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EN
Abstracts
EN
Stability of structures such as embankments, dams and natural riverside slopes are hampered due to the seismic loading. To evaluate the seismic effect on the stability of slopes is a major concern in the field of geotechnical engineering. Two-dimensional limit equilibrium method (LEM) is a common approach for analyzing slope stability. Usually LEM is used to find out potential failure mechanisms and factors of safety for the slopes. The aim of this study is to evaluate the effect of seismic loading on the stability of Mahananda River Embankment of Bangladesh by using LEM. The Bishop, Spencer, Fellenius, Janbu and Morgenster-price simplified methods were used for LEM. To conduct the study three locations of Mahananda River Embankment were selected. Soil properties were obtained from laboratory testing. The numerical analysis was carried out using geotechnical software GEO5 which is generally used for analyzing LEM based slope stability problems. From the analysis, it was noted that the factors of safety decreased with the increase of horizontal seismic coefficient for the slopes. The horizontal seismic coefficient alone affects the stability of slope severely than the combined effect of horizontal and vertical seismic coefficient. The results concluded that the present condition of the Mahananda river embankment is stabilized under seismic loading.
Year
Volume
126
Pages
118-135
Physical description
Contributors
  • Department of Civil Engineering, Rajshahi University of Engineering & Technology, Rajshahi, Bangladesh
  • Department of Civil Engineering, Rajshahi University of Engineering & Technology, Rajshahi, Bangladesh
author
  • Department of Civil Engineering, Rajshahi University of Engineering & Technology, Rajshahi, Bangladesh
  • Department of Civil Engineering, Rajshahi University of Engineering & Technology, Rajshahi, Bangladesh
References
  • [1] Cheng, Y.M., Lansivaara, T. and Wei, W.B., 2007. Two-dimensional slope stability analysis by limit equilibrium and strength reduction methods. Computers and Geotechnics 34(3), pp. 137-150
  • [2] Chen, Z., Wang, X., Haberfield, C., Yin, J.H. and Wang, Y., 2001. A three-dimensional slope stability analysis method using the upper bound theorem: Part I: Theory and methods. International Journal of Rock Mechanics and Mining Sciences, 38(3), pp. 369-378
  • [3] Zolfaghari, A.R., Heath, A.C. and McCombie, P.F., 2005. Simple genetic algorithm search for critical non-circular failure surface in slope stability analysis. Computers and geotechnics, 32(3), pp. 139-152
  • [4] Dimakis, P., Elverhøi, A., Høeg, K., Solheim, A., Harbitz, C., Laberg, J.S., Vorren, T.O. and Marr, J., 2000. Submarine slope stability on high-latitude glaciated Svalbard–Barents Sea margin. Marine Geology 162(2-4), pp. 303-316
  • [5] Taylor, J.M. and Burns, S.E., 2006. Slope and seismic stability of Castle Lake Debris Dam, Mt. St. Helens, Washington. Mitochondrial Medicine, p. 349.
  • [6] Won, J., You, K., Jeong, S. and Kim, S., 2005. Coupled effects in stability analysis of pile–slope systems. Computers and Geotechnics, 32(4), pp. 304-315
  • [7] Yu, H.S., Salgado, R., Sloan, S.W. and Kim, J.M., 1998. Limit analysis versus limit equilibrium for slope stability. Journal of Geotechnical and Geoenvironmental Engineering, 124(1), pp. 1-11
  • [8] Kalatehjari, R. and Ali, N., 2013. A review of three-dimensional slope stability analyses based on limit equilibrium method. Electronic Journal of Geotechnical Engineering, 18, pp. 119-134
  • [9] Cheng, Y.M., Li, L., Chi, S.C. and Wei, W.B., 2007. Particle swarm optimization algorithm for the location of the critical non-circular failure surface in two-dimensional slope stability analysis. Computers and Geotechnics, 34(2), pp. 92-103
Document Type
article
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.psjd-4815c669-c2c2-4ab0-82ce-72f913450ee8
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