Research on muscle fatigue and accident prevention in coal miners

doi:10.16265/j.cnki.issn1003-3033.2021.03.027

Abstract

Abstract: In order to solve problem of miners' work intensity and difficulty, it was easy to cause physical fatigue and lead to unsafe behavior. Firstly, questionnaire of muscle fatigue was issued to miners to understand actual working state of miners. Secondly, surface EMG test was used to simulate working environment and work content of miners, and degree and change characteristics of muscle fatigue were detected. Finally, combined with experimental results and working status of miners, prevention and control measures of muscle fatigue accidents were put forward. The results show that proportion of muscle fatigue in the neck, shoulder, back, elbow, waist and other parts of miners is high. It is suggested that miners should take a rest before fatigue instability period to avoid or delay fatigue, reduce unsafe behaviors and reduce rate of human accidents. Prevention and control measures of muscle fatigue accidents of miners can be carried out from aspects of working time early warning, working environment early warning, psychological stress warning, comprehensive early warning files and mechanical amenity design.

Key words: coal miners, muscle fatigue, surface electromyography(EMG), prevention and control measures, median frequency(MF)

CLC Number:

X910

WANG Yue, ZHANG Lin. Research on muscle fatigue and accident prevention in coal miners[J]. China Safety Science Journal, 2021, 31(3): 191-196.

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