综掘支护工疲劳影响因素识别与分析OA

Fatigue operation is an important cause of safety accidents in comprehensive excavation sup-port workers,and fatigue must be pre-controlled in order to prevent coal mine accidents.In order to an-alyze and explore the influencing factors of fatigue for fully integrated excavation support workers,the four dimensions of human factors,mechanical equipment factors,environmental factors,and manage-ment factors were analyzed,with 14 factors recognized,thus achieving an index system.The causal rela-tionship between the influencing factors was analyzed by using the Decision Experiment and Evaluation Laboratory Method(DEMATEL)as well as the Explained Structural Model Method(ISM),and the multi-level structure division of the causes of fatigue of fully integrated excavation support workers was carried out.Then the internal relationship between the influencing factors of fatigue at each level was revealed,and the corresponding countermeasures were proposed.The results show Job satisfaction is lo-cated in the first level,rest time,work posture,work ability,and personal physical fitness are located in the second level,and the first and second levels are the direct influencing factors.Noise,temperature and humidity,limited pen sealing space,light,dust,shift system,and safety training are located at level 3,ease of equipment operation is at level 4,and levels 3 and 4 are indirect influencing factors.Safety culture is at level 5 a root factor.It is concluded that analyzing and clarifying the causal relationship and hierarchical relationship between the influencing factors of fully integrated excavation support worker fatigue is conducive to effectively pre-controlling the fatigue and reducing or preventing coal mine accidents.