煤矿工作面安全状态评价指标赋权策略研究

Research on weighting strategies for safety status evaluation indicators in coal mine working faces

煤矿工作面安全状态精准评价可促进矿井安全管理水平和防灾抗灾能力提升。以CH_(4)浓度、CO_(2)浓度、CO浓度、O_(2)浓度、温度、风速6种工作面环境监测数据为评价指标,对工作面安全状态进行评价分析。为合理确定评价指标的权重,提高安全评价结果的准确性,采用模糊层次分析法(FAHP)计算评价指标的主观权重、G-GRITIC法计算指标的客观权重,通过基于改进博弈论(IGT)的组合赋权法将主观权重与客观权重结合,得出评价指标的组合权重,解决了决策过程中主客观信息不一致性问题。基于陕西黄陵二号煤矿有限公司209综采工作面安全监控系统采集数据,对基于IGT的组合赋权法进行实验验证,结果表明该方法有效避免了线性加权法、平均加权法的主观判断性,优化了基于博弈论(GT)的组合赋权法的偏差结果,得到的评价指标更加合理,可获得更加准确的煤矿工作面安全状态评价结果。

Accurate evaluation of the safety status of the working face can promote the improvement of mine safety management level and disaster prevention and resilience.Using CH_(4) concentration,CO_(2) concentration,CO concentration,O_(2) concentration,temperature,and wind speed as evaluation indicators,the safety status of the working face is evaluated and analyzed.To reasonably determine the weight of evaluation indicators and improve the accuracy of safety evaluation results,the fuzzy analytical hierarchy process(FAHP)is used to calculate the subjective weight of evaluation indicators,and the G-GRITIC method is used to calculate the objective weight of indicators.The combination weighting method based on improved game theory(IGT)combines subjective weight with objective weight to obtain the combination weight of evaluation indicators,solving the problem of inconsistent subjective and objective information in the decision-making process.Based on the data collected by the safety monitoring system of the 209 fully mechanized working face of Shaanxi Huangling No.2 Coal Mine Co.,Ltd.,experimental verification is conducted on the IGT based combination weighting method.The results show that this method effectively avoids the subjective judgment of linear weighting method and average weighting method,optimizes the deviation results of the game theory(GT)combination weighting method.It obtains more reasonable evaluation indicators,which can obtain more accurate evaluation results of the safety status of the coal mine working face.