Development Of The Physical Experiment System Of Deep Confined Space Of Mines And Study On The Experiment Of Safety Human Factor Parameters

Abstract:A series of safety and environmental issues will be induced in the process of production of deep confined space of mines.Severe environment has great impact on the physical health of human body and work efficiency, thus affects the safety of human behavior.With the continuous mining of shallow resources,the mines of our country are into the deep mining gradually.The environment problem of confined space of mines has become serious increasingly in the process of deep mining. Severe environment factors make human body generate physical discomfort, which affects safety of production.Therefore,the physical simulation of the working environment in deep confined space of mines and carrying out relevant tests to study the effect of severe environment on human physiology and working efficiency,have important theoretical significance and practical application value to prevent occupational hazards and ensure the safety of production.On the basis of reviewing the relevant research results at home and abroad,with theoretical analysis,physical simulation and indoor simulation tests,the single and composite effect of severe environment of deep confined space in mines on human physiology and working efficiency is studied systematically.The main contents and achievements of the thesis are as follows:(1)Based on the contents of safety science and physiology discipline, the definition of safety physiology principle was proposed, and the research objects and connotation of safe physiology principle were discussed.Five subordinate principles of safety physiology were concluded, which were the demand principle of safety physiology, the perception principle of safety physiology, the feedback principle of safety physiology, the steady state principle of safety physiology and operation efficiency principle of safety physiology.And the research contents and logical relationship of these five second principles were analyzed.Finally, the application mechanism, the impact on the safety and practical significance of safety physiology principles in the process of human safety behavior were analyzed.(2)The theory system of safety engineering principle was created. Based on the characteristics of the working environment of mines, according to the requirement of the safety engineering principles,the artificial intelligence equipment for simulation of the environment and safety conditions in deep confined space of mines was designed and made, realizing the physical simulation of environment condition in mines on the ground.The equipment can be used to simulate various environmental factors such as temperature,humidity, noise, illumination,air pressure, wind speed, dust, toxic and harmful gases,et al.And the equipment has human parameters measuring sub-system to study the effect of various environment factors on human physiology.The experiment system is equipped with advanced automation and monitoring technology, and can carry out a series of experiments systematically to discuss the relationship between severe environment of deep confined space of mines and human physiological health, working efficiency and safety behavior.(3)The reliability of the artificial intelligence equipment for simulation of the environment and safety conditions in deep confined space of mines was analyzed with fuzzy mathematics theory.A FMEA table of the experiment system is established, and the harm degrees of failure mode were divided.The failure modes of various instruments equipment of experiment system were analyzed with multilevel fuzzy comprehensive evaluation, and the sorting result of the impact of various failure modes on the system reliability is obtained, providing the basis to improve the reliability of the system.(4)The test of the single factor effect on human was carried out in the artificial intelligence equipment for simulation of the environment and safety conditions in deep confined space of mines,and the environmental conditions of temperature, humidity, noise,illumination in mines were simulated physically.Blood pressure,heart rate,respiratory rate, body temperature were selected as human physiological indicators.Fatigue, attention,memory, reaction speed were selected as working efficiency indicators.Through the simulation test of labor in special setting environment, the changing rules of human physiological indicators and working efficiency indicators were discussed, and the fitting formulas were determined to analyze the quantitative relationship between each indicator and environment factor.(5) Orthogonal theory was used to design the test of the composite effect of temperature, humidity, noise, illumination in deep confined spaces of mines on human. On the basis of the result of single factor effect test the orthogonal data was analyzed with SPSS statistical software, and the fitting formulas of human physiological indicators and working efficiency indicators to severe environment factors were obtained. The accuracy of the mathematics prediction model was verified and the quantitative relation between human indicators and the environmental factors was revealed.