基于突变理论的马家沟矿煤与瓦斯突出过程研究

Study on Coal and Gas Outburst Process of Majiagou Mine Base on Catastrophe Theory

煤与瓦斯突出发生在很短的时间内,具有突变特性,从突变特性的角度来研究突出机理有着重要的意义。文章首先分析了影响卸压区安全宽度的几大因素,在此基础上,应用突变理论中的尖点突变模型,得出了煤与瓦斯突出过程的突变势函数。从突变理论的角度分析了煤与瓦斯突出的全过程。最后,以马家沟矿为例,应用突变理论对其突出规律进行解释。

The coal and gas outburst would be occurred within a very short period and would have a catastrophe feature.From the view of the catastrophe feature,the study on the outburst mechanism would have great significances.The paper firstly analyzed the several main factors affected to the safety width of the pressure released zone.The peak catastrophe model in the catastrophe theory was applied to have the catastrophe potential function in the coal and gas outburst process.from the view of the catastrophe theory,the full process of the coal and gas outburst was analyzed.Finally,taking the Majiagou Mine as an example,the catastrophe theory was applied to explain the outburst law.