回采工作面瓦斯涌出的复杂性及其度量

Complexity and measurement of complex degree of gas gush in heading faces of coal mine

由于回采工作面瓦斯涌出直接影响着工作面通风的合理性、瓦斯灾害防治措施的有效性和高效生产的安全性,因此在对回采工作面瓦斯涌出时间序列观测数据分析的基础上,对其时间序列进行了关联维数的计算与分析.结果表明,回采工作面瓦斯涌出系统是具有某种复杂结构的非线性混沌系统,且存在混沌吸引子,要描述该系统至少需要用11个独立变量或11阶动力学方程.

Rationality about the ventilation in the working face of coal mine, validity about the prevention and cure measure of gas disaster and security about high production are directly influenced by the gas gush in the heading faces of coal mine, Therefore, the time series of the gas gush in the heading faces were calculated and analyzed by applying the relation dimension. The research result proves that the gas gush system of the heading faces is a nonlinear chaos system with a complex structure and the chaotic attractors and it needs 11 unattached variables or 11 steps of dynamic equation to describe the system.