Inclined Slice Method for the Calculation of Slope Stability Safety Factor


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The vertical slice method is generally adopted for calculation of slope stability safety factor. The algebraic expression of the slope stability safety factor Fs is deducted based on the idea of the calculation via the inclined slice method and according to the inclined slice force limit equilibrium conditions. This expression is implicit so that the result can be obtained quickly only through simple iteratives, guaranteeing the convergence. Calculation examples show that the slope stability safety factor Fs derived from this method is very similar with that from conventional methods. which proves that this method is feasible and brings convenience to technical personnel of slope engineering.



Advanced Materials Research (Volumes 261-263)

Edited by:

Jingying Zhao




H. Y. Ge et al., "Inclined Slice Method for the Calculation of Slope Stability Safety Factor", Advanced Materials Research, Vols. 261-263, pp. 1459-1464, 2011

Online since:

May 2011




[1] Cheng Y. M et al: Computers and Geotechnics, 2006, 1 511–1 524.

[2] Duncan J M.: Journal of Geotechnical Engineering, 1996, 122(7): 577–596.

[3] Hutchison J N and Sarma S K.: Geotechnique, 1985, 35: 215–225.

[4] Huang C C and Tsai C C.: Journal of Geotechnical and Environmental Engineering, 2000, 126(10): 917–927.

[5] Chen Zuyu, Soil Slope Stability Analysis—Theory, Methods and Programs. Beijing: China Water Power Press, 2003. (in Chinese).

[6] Morgenstern N R and Price V E.: Geotechnique, 1965, 15(1): 79–93.

[7] Spencer E. A: Geotechnique, 1967, 17(1): 11–26.

[8] Janbu N., Slope Stability Computations: Casagrande MemorialVolume, New York: John Wiley, 1973, 47–86.

[9] Sarma S K.: J. Geotech. Engng., ASCE, 1979, 105(12): 1 511–1 524.

[10] Chen Z Y. and Morgenstern N R: Can. Geotech. J., 1983, 20(1)104–119.

[11] Yaoyao Wu and Chen Dongwei: Chinese Journal of Rock Mechanics and Engineering, 2004, 23(16): 2726-2729. (in Chinese).

[12] Tan Xiaohui et al: Chinese Journal of Chongqing University, 2001, 24(6): 40-44. (in Chinese).

[13] Luo Wenqiang et al.: Chinese Journal of Rock Mechanics and Engineering, 2005, 24(13): 2287-2292. (in Chinese).

[14] Yang Jiangui et al: Chinese Journal of Hohai University, 2002, 30(1): 58-62. (in Chinese).

[15] Fredlund D G, Krahn J.: Canadian Geotechnical Journal, 1977, 14(3): 429-439.