School of Resources and Civil Engineering, Northeastern University, Shenyang, China.
PLoS One. 2018 Mar 21;13(3):e0193576. doi: 10.1371/journal.pone.0193576. eCollection 2018.
Mine safety assessment is a precondition for ensuring orderly and safety in production. The main purpose of this study was to prevent mine accidents more effectively by proposing a composite risk analysis model. First, the weights of the assessment indicators were determined by the revised integrated weight method, in which the objective weights were determined by a variation coefficient method and the subjective weights determined by the Delphi method. A new formula was then adopted to calculate the integrated weights based on the subjective and objective weights. Second, after the assessment indicator weights were determined, gray relational analysis was used to evaluate the safety of mine enterprises. Mine enterprise safety was ranked according to the gray relational degree, and weak links of mine safety practices identified based on gray relational analysis. Third, to validate the revised integrated weight method adopted in the process of gray relational analysis, the fuzzy evaluation method was used to the safety assessment of mine enterprises. Fourth, for first time, bow tie model was adopted to identify the causes and consequences of weak links and allow corresponding safety measures to be taken to guarantee the mine's safe production. A case study of mine safety assessment was presented to demonstrate the effectiveness and rationality of the proposed composite risk analysis model, which can be applied to other related industries for safety evaluation.
矿山安全评价是确保生产有序和安全的前提条件。本研究的主要目的是通过提出一种综合风险分析模型，更有效地预防矿山事故。首先，采用修正的综合权重法确定评价指标的权重，其中客观权重由变异系数法确定，主观权重由德尔菲法确定。然后采用新的公式，根据主观权重和客观权重计算综合权重。其次，在确定评价指标权重后，采用灰色关联分析对矿山企业的安全状况进行评价。根据灰色关联度对矿山企业安全状况进行排名，并根据灰色关联分析识别矿山安全实践的薄弱环节。第三，为了验证灰色关联分析过程中采用的修正综合权重方法，采用模糊评价方法对矿山企业的安全评价进行了验证。第四，首次采用蝴蝶结模型识别薄弱环节的原因和后果，并采取相应的安全措施，保证矿山的安全生产。通过矿山安全评价的案例研究，验证了所提出的综合风险分析模型的有效性和合理性，该模型可应用于其他相关行业的安全评价。
