›› 2006, Vol. 27 ›› Issue (S1): 639-642.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on probabilistic density of safety factor for slope stability

LUO Wen-qiang1, YIN Jian-qiao1 , ZHAO Wen-bin2   

  1. 1. School of Mathematics and Physics, China University of Geosciences, Wuhan, 430074 , China; 2. Engineering Faculty, China University of Geosciences, Wuhan, 430074 , China
  • Received:2006-07-20 Published:2006-12-15

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Abstract: Probabilistic density of safety factor is basic for calculating slope reliability index and failure probability. Some studies of variability and probabilistic density of parameters, for instance, cohesion, coefficient of friction, unit weight, have been done; these parameters have great influence upon stability of slope; but the present studies of variability and probabilistic density of safety factor have not been done. As an example, safety of Shizibao slope in Badong County of the Three Gorges Reservoir Areas was assessed. In this example, we suppose that parameters c and ? obey normal distribution; the results computed by Monte Carlo simulative method show that safety factor obey normal distribution, probabilistic density of safety factor was quantificationally tested by Q-Q plotting analysis further. Based on normal distribution, average safety factor and risk of Shizibao slope were obtained.

Key words: slope stability, safety factor, probabilistic density, Q-Q plotting, normal distribution

CLC Number: 

  • TU 457
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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