Summary
The study pertains to the development of an autosearch technique for locating the critical shear surface and the corresponding minimum factor of safety without any prior assumption regarding its shape, for slopes in soils having nonlinear strength envelopes. Sequential unconstrained optimization in conjunction with Janbu’s generalized procedure of slices has been used in the analysis. Results have been obtained for both linear and nonlinear failure envelopes and compared. It has been observed that in case of nonlinear strength idealisation, the critical slip surface is sensitive to the magnitude of pore water pressure parameter (rµ,) and the factor of safety versus rµ. relationship is nonlinear. The developed method has been found to be effective for the problems studied.
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References
Charles, J.A. and Soares, M.M., “The Stability of slopes in soils with non-linear failure envelopes”, Can. Geotech. J. Vol. 21, (1984), pp. 397–406.
De Mello, V.F.B., “Reflections on design decisions of practical significance to embankment dams”, 17th Rankine lecture, Geotechnique 27 (1977)No. 3, pp 281–354.
Fox, R.L., “Optimization methods for engineering design”, Addison-Wesley, Reading, Mass, 1971.
Janbu, N. “Slope stability computations”, Embankment Dam Engineering, Casgrande Vol., Ed. Hirschfeld and S.J. Paulos, John Wiley & Sons, NY, pp 47–86, 1973.
Kavlie, D., “Optimum design of statically indeterminate structures”, PhD thesis, Univ. of California, Berkeley, 1971.
Maksimovik, M., “Limit Eguilibrium for nonlinear failure envelope and arbitrary slip surface”, Proc. 3rd Int. Conf. Numer. Meth. Geomech., Aachen 2, pp 769–777, 1979.
Marsland, A., “The shear strength of stiff fissured clays”, Building Research Station Current Paper, 21 /71, 1971.
Wright, S.G., “A Study of stability and the undrained shear strength of clay shales, PhD Thesis, Univ of California, Berkeley, 1969.
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© 1987 Martinus Nijhoff Publishers, Dordrecht
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Yudhbir, Basudhar, P.K., Bhowmik, S.K. (1987). Slope Stability Computations with Nonlinear Failure Envelope using Generalized Procedure of Slices and Optimization Techniques. In: Pande, G.N., Middleton, J. (eds) Numerical Techniques for Engineering Analysis and Design. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3653-9_39
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DOI: https://doi.org/10.1007/978-94-009-3653-9_39
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8134-4
Online ISBN: 978-94-009-3653-9
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