【摘要】 为研究矿山爆破地震波传播过程中的混沌特性,运用相空间重构理论对距爆源不同距离处爆破地震波进行相空间重构,计算延迟时间和关联维数.研究结果表明:随着传播距离的增加,爆破地震波时间序列的关联维数呈线性递减并趋于稳定饱和值;关联维数越大,混沌特征越明显,爆破地震波时间序列的混沌性是其本质特征.更多还原

【Abstract】 In order to study on chaotic characteristic of mine blasting seismic wave propagation,and based on phase-space reconstruction with different distance from blasting seismic wave, this paper calculated the time delay and correlation dimension of blasting seismic wave in different distance. The results show that with the increasing of propagation distance, blasting seismic wave correlative dimension of time series decreases linearly and tends to be stable and saturated,and the bigger the correlation dimension, the more obvious the chaos characteristics. Chaotic is the substantive characteristics of blasting seismic wave in time series. The research results will beneficial for further understanding the nonlinear characteristics of seismic wave.更多还原