Research On Causation Analysis And Control Countermeasure Of Coal And Gas Outburst Near-miss

Coal and gas outburst is one of the main disaster threats to coal mine safety production, although coal and gas outburst accidents have been decreasing, but there still have been occurred, coal mine production safety situation is still very grim. Outburst mechanism is not clear, highlighting the lack of knowledge of risk mega events and the lack of pre-control mechanism is an endless stream of coal and gas outburst accident root ca uses. Before each coal and gas outburst accident occurred, there will be a large number of near misses, which carry coal and gas outburst near miss warning basic theory and research, are an effective means of prevention of increasing the reaction rate on coal and gas outburstFirstly, analysis coal and gas outburst near miss conducted basic theory: Identify the coal and gas outburst near miss concept, with coal and gas outburst omen, signs, hazards, accidents were the scope and conceptual discrimination, in accordance with the source of their produce, according to the probability of its occurrence and the extent of damage will be lost,coal and gas outburst near miss is divided into four categories. At the same time, combined with the "Swiss cheese" model and the "three types of hazards cause of coal mine near miss causation" to build coal and gas outburst near miss cause of the conceptual model. Secondly, uses literature analysis method to extract the 23 coal and gas outburst near miss causation factors, and prepares coal and gas outburst near miss causation factor questionnaire, questionnaire results were analyzedbySPSS19.0, obtain equipment and facilities security levels, environmental factors and inherent safety management level four secondary factors, and 19 three factors validated for coal and gas outburst, verify that the classification for coal and gas outburst near miss in foregoing. Again, by conducting an analysis of the causal relationship between the various factors, construction of the coal and gas outburst near miss was set up to explain the structural model, clearing causal structure among factors. Finally, based on the coal and gas outburst near miss interpreted structural model, proposed control countermeasure targeted.Through the study on coal and gas outburst near miss basic theory and causation factors, deepened the theoretical and applied in the field of near miss event in coal mine, which can improve the coal and gas outburst prevention of pre-response rate for coal effectively, and provides a new way of thinking for the prevention of coal and gas outburst accidents.