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基于变权物元可拓的煤矿粉尘职业危害预警方法

Early warning method for occupational hazards of coal mine dust based on variable-weight matter-element extension

  • 摘要: 为提高煤矿粉尘职业危害预警结果的准确性,分析煤矿粉尘职业危害影响因素,引入DPSR理论建立煤矿粉尘职业危害致因模型,从外部监督、生产环境、粉尘特性、职业健康状况、防尘技术措施、防尘管理措施等方面,构建由6个一级指标、24个二级指标构成的煤矿粉尘职业危害预警指标体系。采用AHP-变权和改进熵权法确定指标综合权重,融合物元可拓理论,提出煤矿粉尘职业危害预警方法。应用结果表明:一级指标权重由大到小依次为:粉尘特性、职业健康状况、防尘管理措施、生产环境、防尘技术措施、外部监督;二级指标中,粉尘浓度、粉尘累积暴露量、粉尘接触时间、粉尘游离SiO2含量等指标综合权重较大,较高预警指标共10个。

     

    Abstract: To improve the accuracy of early warning for occupational hazards caused by coal mine dust,this study analyzes the influencing factors, establishes a causative model based on the DPSR framework, and develops an early warning index system. The index system comprises six first-level indicators (external supervision,production environment,dust characteristics, occupational health status,dust prevention technical measures,and dust prevention management measures) and 24 second-level indicators. The comprehensive weights of the indicators are determined using the AHP-variable-weight method and an improved entropy weight method. Combined with matter-element extension theory,a warning method for occupational hazards of coal mine dust is proposed. The results show that the weights of the first-level indicators,in descending order,are:dust characteristics, occupational health status,dust prevention management measures,production environment,dust prevention technical measures, and external supervision. Among the secondary indicators,dust concentration,cumulative dust exposure,dust contact time,and free SiO 2 content in dust have relatively high comprehensive weights,with 10 indicators identified as high-warning level. The findings provide a theoretical basis for the risk control and hierarchical early warning of occupational hazards caused by coal mine dust.

     

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