AN AGGREGATED FUZZY RELIABILITY INDEX FOR SLOPE STABILITY ANALYSIS

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MEYDANI M.; HABIBAGHAI G.; KATEBI S.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: Iranian Journal of Fuzzy Systems Year:2004 | Volume:1 | Issue:1 Page(s): 17-17

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Title

AN AGGREGATED FUZZY RELIABILITY INDEX FOR SLOPE STABILITY ANALYSIS

Author(s)

MEYDANI M. | HABIBAGHAI G. | KATEBI S. | Issue Writer Certificate

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Abstract

While sophisticated analytical methods like Morgenstern-Price or finite element methods are available for more realistic analysis of stability of slopes, assessment of the exact values of soil parameters is practically impossible. Uncertainty in the soil parameters arises from two different sources: scatter in data and systematic error inherent in the estimate of soil properties. Hence, stability of a slope should be expressed using a factor of safety accompanied by a reliability index. In this paper, theory of fuzzy sets is used to deal with the uncertain nature of soil parameters and the inaccuracy involved in the analysis simultaneously. Soil parameters are defined using suitable fuzzy sets and the uncertainty inherent in the value of factor of safety is assessed accordingly. It is believed that this approach accounts for the uncertainty in soil parameters more realistically compared to the conventional probabilistic approaches reported in the literature. A computer program is developed that carries out the large amount of calculations required for evaluating the fuzzy factor of safety based on the concept of domain interval analysis. An aggregated fuzzy reliability index (AFRI) is defined and assigned to the calculated factor of safety. The proposed method is applied to a case study and the results are discussed in details. Results from sensitivity analysis describe where the exploration effort or quality control should be concentrated. The advantage of the proposed method lies in its fast calculation speed as well as its ease of data acquisition from experts* opinion through fuzzy sets.

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APA: Copy

MEYDANI, M., HABIBAGHAI, G., & KATEBI, S.. (2004). AN AGGREGATED FUZZY RELIABILITY INDEX FOR SLOPE STABILITY ANALYSIS. IRANIAN JOURNAL OF FUZZY SYSTEMS, 1(1), 17-17. SID. https://sid.ir/paper/528517/en

Vancouver: Copy

MEYDANI M., HABIBAGHAI G., KATEBI S.. AN AGGREGATED FUZZY RELIABILITY INDEX FOR SLOPE STABILITY ANALYSIS. IRANIAN JOURNAL OF FUZZY SYSTEMS[Internet]. 2004;1(1):17-17. Available from: https://sid.ir/paper/528517/en

IEEE: Copy

M. MEYDANI, G. HABIBAGHAI, and S. KATEBI, “AN AGGREGATED FUZZY RELIABILITY INDEX FOR SLOPE STABILITY ANALYSIS,” IRANIAN JOURNAL OF FUZZY SYSTEMS, vol. 1, no. 1, pp. 17–17, 2004, [Online]. Available: https://sid.ir/paper/528517/en

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