掘进工作面瓦斯涌出量混沌动力学方法研究

Research on Chaos Dynamic Method of Gas Emission in Heading Face

掘进工作面瓦斯涌出量是了解和掌握工作面附近瓦斯运动的整体直观资料之一,如何从瓦斯涌出量时间序列中得到更多的信息,对预防煤与瓦斯突出等灾害事故具有重要的意义,混沌动力学为此提供了理论和方法。从混沌动力学的角度出发,以某矿井一掘进工作面瓦斯涌出量时间序列为基础,计算了描述混沌特性的参数,初步结果证明了掘进工作面瓦斯涌出具有混沌特性,用混沌动力学方法能较好地预测掘进工作面瓦斯涌出量,最大预报时间尺度可达2d。

The gas emission in the heading face is one of the integral direct data for understanding and grasping gas migration near the face,and how to acquire more information form the time series of gas emission has great significance for the prevention and control of gas disasters such as coal and gas outburst,the chaos dynamics provided theory and method for it.From chaos dynamics and taking the time series of gas emission in a heading face of a mine as the foundation,the parameters for describing chaotic characteristics was calculated,the preliminary results proved that the gas emission in the heading face has chaotic characteristics,the use of chaos dynamic method can better predict the gas emission in the heading face,and the predictable maximum time scale can reach two days.