A simulation experiment study to examine the effects of noise on miners' safety behavior in underground coal mines

Background: Noise pollution in coal mines is of great concern. Personal injuries directly or indirectly related to noise occur from time to time. Its effects impact the health and safety of coal mine workers. This study aimed to identify if and how the level of noise impacts miners' safety behavior in underground coal mines. Methods: In order to study the influence of noise on miners in the mining industry, we built a coal mine noise simulation experiment system, and set the noise test level at 50dB similar to 120dB according to the actual working environment at well. We divided the noise gradient into 8 categories and conducted 93 experiments, in which we aim to test miners' attention distribution, fatigue, and reaction under each level, and the experimental results were analyzed by SPSS22.0 software. Results: The results show that the increase of environmental noise level will have an impact on the attention, reaction, and fatigue. The noise is positively related to the fatigue, the noise is negatively related to the attention and reaction. In the noise environment, the sensitivity of the personnel to optic stimuli is higher than that to acoustic stimuli. The test indicators of attention, fatigue, and reaction will change significantly, when the noise level is greater than 70 similar to 80dB. Conclusions: From the perspective of accident prevention, the noise level can be controlled within the range of less than 70 similar to 80dB, which can control the occurrence of accidents to a certain extent.