Locating the critical slip surface with the minimum factor of safety for a rock slope is a difficult problem. In recent years, some modern global optimization methods have been developed with success in treating various types of problems, but very few of such methods have been applied to rock mechanical problems. In this paper, use of hybrid model based on artificial immune system and cellular learning automata is proposed. The results show that the algorithm is an effective and efficient optimization method with a high level of confidence rate.<\/p>\r\n","references":"[1] A.W. Bishop, \"The use of the slip circle in the stability analysis of\r\nslopes\". Geotechnique, 1955 vol.5, pp.7-17.\r\n[2] N. R. Morgenstem and V. E. Price,\"The analysis of stability of general\r\nslip surface\". Geotechnique, 1965 vol.15, pp.79-93.\r\n[3] E. Spencer, \"A method of analysis of the stability of embankments\r\nassuming parallel interslice force\". Geotechnique, 1967 vol.17, pp.11-\r\n26\r\n[4] D. G. Fredland, and J. Krahn, \"Comparison of sloope stability method\r\nof analysis\", Con . Geot .J, 1977, vol.14, pp.429-439.\r\n[5] , I. B. Donald and P. S. K. Giam, \"a. Improved comprehensive limit\r\nequilibrium stability analysis\", Dept. of Civil Engrg, Report No .1\/1989,\r\nMonash University, Melbourne, Australia.\r\n[6] H. Bandemer. and S. Gottwald ,. \"Fuzzy set, fuzzy logic, fuzzy methods\r\nwith applications\", 1994, wiley & sons, Ltd\r\n[7] M. T Hagan , H. B. Demutch and M. Beale, \"Neural Network Desig\"n,\r\nPWS Publishing Company.\r\n[8] Z. Michalewicz, \"Genetic Algorithms + Data Structures = Evolution\r\nPrograms\", 1996 Springer-Verlag, Berlin.\r\n[9] A. P. Engelbercht. \"Computational Intelligence An Introduction\",\r\n2007, Second Edition, John Wiley & sons, Ltd\r\n[10] ,I. C. Trelea, \"The particle swarm optimization algorithm, Convergence\r\nanalysis and parameter selection\", 2003, Information Processing,\r\nvol.6, pp. 317-325.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 59, 2011"}