Risk Assessment of Tailings Pond Based on Triangular Fuzzy Theory

Abstract:

The risk evaluation index system of tailings pond is established on the basis of the characteristics of tailings pond and the requirements of laws in China.To make up for the deficiencies of the present index weight determined methods and many risk assessment methods, this article presents a risk assessment methodology based on the Fuzzy Sets Theory, which is an effective tool to deal with subjective judgement.The proposed methodology incorporates knowledge and experience acquired from many experts. The weight of the indexes are considered two risk factors: risk probability, risk impact. Triangular fuzzy theory as the mathematical background is used in the paper to solve the problem of subjectivity and uncertainty to determine index weights and index values. The proposed method is applied to assess a certain tailings pond in Benxi. The most notable differences with other fuzzy risk assessment methods are the use of an algorithm to handle the inconsistencies in the fuzzy preference relation. The result indicates that this method used is feasible and rational. The work specified in this paper can be as reference to the evaluation work of the tailings pond in China.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 515-519
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.515
• Online since: May 2012
• Authors: Ke Pan, Yang Dong
• Keywords: Risk Assessment, Risk Impact, Risk Probability, Tailings Pond, Triangular Fuzzy Theory

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