Tailings pond dam break risk classification study based on both ISM and factor frequency method

doi:10.16265/j.cnki.issn1003-3033.2018.12.024

Abstract

Abstract: To solve the problem that the correlative modes between factors causing tailings dam-break interfere with the assessment and classification of the risks, the causes of tailings dam-break accidents at home and abroad were summarized and analyzed. Sixteen factors leading to tailings dam-break were screened out. The ISM was introduced to construct an interpretative structure model for tailings dam-break, and the factors of tailings dam-break were sorted out. Based on the hierarchical membership relationship, combined with the factor frequency method and the AHP, a method of determining the weight independent of subjective judgment was designed to calculate the weight of each factor in the model. According to the criteria of identification and classification of major hazards in tailings reservoir, a risk classification method for tailings dam break was worked out and applied to a certain tailings dam in China. The results show that the risk classification result of the tailings dam based on ISM and the factor frequency method conforms with the reality, and that the method can avoid the influence of the correlation between factors on the risk classification results of tailings dam break.

Key words: interpretive structural model(ISM), factor frequency method, risk classification, analytic hierarchy process (AHP), tailing pond dam-break

CLC Number:

X936

CHEN Hu, YE Yicheng, WANG Qihu, LUO Binyu, LIU Ran, WANG Xianhua. Tailings pond dam break risk classification study based on both ISM and factor frequency method[J]. China Safety Science Journal, 2018, 28(12): 150-157.

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