›› 2009, Vol. 30 ›› Issue (2): 492-496.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on influences of factors dynamic weight on slope stability

LI Ke-gang, HOU Ke-peng, LI Wang   

  1. Faculty of Land Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China
  • Received:2007-05-09 Online:2009-02-10 Published:2011-01-27

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Abstract:

From the definition of weight, the weak point of weight calculation by traditional analytic hierarchy process (AHP) is analyzed. It is pointed out that the factor weight is not unchangeable, which can vary with the difference of actual values of factors. Taking this as starting point, the simple dependent degree of extension theory is introduced to improve the traditional AHP. The improved method not only can avoid the disadvantages which are caused by subjectiveness during the weight calculation but also can fully reflect the impact on slope stability when the same factor has different data, which should make the evaluation results more reasonable. Finally, a specific example of slope project is studied. The results show that the factor weight has a dynamic characteristic, that is, even if evaluation factors are same, the values of factor weight will also alter with the different data of factors, then the evaluation results of slope stability must be different.

Key words: factor, dynamic weight, simple dependent degree, slope stability

CLC Number: 

  • O 152
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