基于灰色关联分析的巷道掘进风险评价

Risk Assessment of Roadway Excavation Based on Grey Correlation Analysis

掘进工作面是煤矿巷道掘进的重要场所,其风险隐患较多。运用灰色关联分析对巷道掘进中辨识到的风险进行了评价。构建原始评价矩阵,并运用熵权法确定各评价指标的客观权重,最后得出各评价对象与参考数列的关联度。将灰色关联度归一化到特定区间进行风险分级管控,依据不同的等级采取相应防控措施,减少掘进安全事故的发生。

With numerous risks and hazards,the excavation face is a crucial location for the excavation of coal mine roadway.The grey correlation analysis method was used to evaluate the risks identified in the roadway excavation.By constructing the original evaluation matrix and using the entropy weight method to determine the objective weight of each evaluation index,the correlation degree between each evaluation object and the reference number sequence was finally obtained.Normalize the grey correlation degree to a specific section for risk grading control,and take corresponding prevention and control measures according to different levels to reduce the occurrence of safety accidents in excavation.