矿井构造特征的混沌性态研究

Study of chaos character in mine geologic structure

基于实测的煤层底板的倾角、断层强度、断裂信息维等描述矿井地质构造的指标数据，依据地质构造具有自相似的特性，模拟了矿井地质构造演化的时间序列，并通过重建相空间的方法，提取了时间序列的Lyapunov指数．实例分析表明：矿井地质构造的演化具有混沌的特性；另外，不同的指标包含矿井地质构造系统的信息量不同，反映系统混沌特性的程度也有差异．

Based on the measured data to describe mine geologic structure such as obliquity, intensity of fault, information dimension of fault in coal floor, time series of the mine geologic structure evolvement was simulated according to the self-similarity itself. The Lyapunov exponent of time series was extracted by reconstructing phase space. The analysis of examples indicates that the mine geologic structure evolvement has chaos character. Another, the information content of mine geologic structure system contained in different parameters is diverse, and the same as the degree of showing the chaos character of system.