深井受限空间职业危害程度辨析方法

Evaluation Method for Occupational Hazards of Confined Space of Deep Mines

深井受限空间中职业危害影响因素源头多,数据离散,难以有效定量分析。分析了8个典型矿山中173个深部作业场所、硐室的职业危害因素相关数据,确定了影响职业危害程度的关键指标;根据单指标分类区间上、下限,构造了5个不同危害程度等级;基于模糊层次分析法(FAHP),确定了各关键指标的权重;基于逼近理想解排序法(TOPSIS),构建了危害度评价矩阵,计算出20个不同深井受限空间与正理想解的距离贴近度。计算结果表明:深部作业场所职业危害程度高于深部硐室,约27%的作业场所处于较高及以上危害程度等级,需要加强对作业人员的职业安全防护措施。该方法为矿山深井受限空间职业危害程度辨析、预警提供了一种新方法。

Occupational hazard of confined space of deep mines comes from different sources. Due to the discrete data type ,it is hard to realize the effective quantity analysis. The occupational hazards data of 173 deep operation platforms and chambers from 8 typical mines were analyzed. The key indexes of the occupational hazards were determined. 5 different harm degrees were constructed based on the upper limit,lower limit of single index classification; The weight of each index was de- termined based on FAHP, and the risk evaluation matrix was built based on TOPSIS. The approaching degree between confined space of 20 deep mines and the ideal solution were calculated. The calculation results showed that the harm degree of the deep working platform is higher than that of deep chamber,and about 27% of the working platform lies at high harm level or more. Therefore the occupational safety protective measures for workers should be strengthened. The method provides a new way for pre-warning occupation hazards of confined space of deep mines.