Search for Critical Slip Surface in Slope Stability Analysis by Spline-Based GA Method
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 134, Issue 2
Abstract
The stability of a soil slope is usually analyzed by limit equilibrium methods, in which the identification of the critical slip surface is of principal importance. In this study the spline curve in conjunction with a genetic algorithm is used to search the critical slip surface, and Spencer’s method is employed to calculate the factor of safety. Three examples are presented to illustrate the reliability and efficiency of the method. Slip surfaces defined by a series of straight lines are compared with those defined by spline curves, and the results indicate that use of spline curves renders better results for a given number of slip surface nodal points comparing with the approximation using straight line segments.
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Acknowledgments
This research was financially supported by the Major State Basic Research Development Program of China (No. 2002CB412703), and the Knowledge Innovation Project of Chinese Academy of Sciences (No. KJCX2-SW-L1-4).
References
Baker, R. (1980). “Determination of the critical slip surface in slope stability computations.” Int. J. Numer. Analyt. Meth. Geomech., 4(4), 333–359.
Baker, R., and Gaber, M. (1978). “Theoretical analysis of the stability of slopes.” Geotechnique, 28(4), 395–411.
Celestino, T. B., and Duncan, J. M. (1981). “Simplified search for noncircular slip surfaces.” Proc., 10th Int. Conf. SMFE, Stockholm, Sweden, 391–394.
Chen, Z. Y., and Shao, C. M. (1988). “Evaluation of the minimum factor of safety in slope stability analysis.” Can. Geotech. J., 25(4), 735–748.
Das, S. K. (2005). “Slope stability analysis using genetic algorithm.” Electron. J. Geotech. Engrg., 10, ⟨http://www.ejge.com/2005/Ppr0504/Abs0504.htm⟩.
Donald, I. B., and Chen, Z. Y. (1997). “Slope stability analysis by the upper bound approach: Fundamentals and methods.” Can. Geotech. J., 34(6), 853–862.
Duncan, J. M., and Wright, S. G. (1980). “The accuracy of equilibrium methods of slope stability analysis.” Eng. Geol. (Amsterdam), 16(1), 5–17.
Goh, A. T. C. (1999). “Genetic algorithm search for critical slip surface in multiple-wedge stability analysis.” Can. Geotech. J., 36(2), 382–391.
Greco, V. R. (1996). “Efficient Monte Carlo technique for locating critical slip surface.” J. Geotech. Engrg., 122(7), 517–525.
Li, K. S., and White, W. (1987). “Rapid evaluation of the critical slip surface in slope stability problems.” Int. J. Numer. Analyt. Meth. Geomech., 11(5), 449–473.
Malkawi, A. I. H., Hassan, W. F. and Sarma, S. K. (2001). “Global search method for locating general slip surface using Monte Carlo techniques.” J. Geotech. Geoenviron. Eng., 127(8), 688–698.
McCombic, P., and Wilkinson, P. (2002). “The use of the simple genetic algorithm in finding the critical factor of safety in slope stability analysis.” Comput. Geotech., 29(8), 699–714.
Morgenstern, N. R., and Price, V. E. (1965). “The analysis of stability of general slip surface.” Geotechnique, 15(1), 79–93.
Spencer, E. (1967). “A method of analysis of the stability of embankments assuming parallel interslice forces.” Geotechnique, 17(1), 11–26.
Yamagami, T., and Ueta, Y. (1988). “Search for noncircular slip surfaces by the Morgenstern-Price method.” Proc., 6th Int. Conf. on Numerical Methods in Geomechanics, 1219–1223.
Zolfaghari, A. R., Heath, A. C., and McCombie, P. F. (2005). “Simple genetic algorithm search for critical noncircular failure surface in slope stability analysis.” Comput. Geotech., 32(3), 139–152.
Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 134 • Issue 2 • February 2008
Pages: 252 - 256
Copyright
© 2008 ASCE.
History
Received: May 26, 2006
Accepted: Jun 21, 2007
Published online: Feb 1, 2008
Published in print: Feb 2008
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