The results show that the velocity and the relaxation peak of the attenuation moved to low frequencies, and the amplitude of the attenuation decreases, as the correlation length increases.
Based on the observed data of strong motion acceleration in Yunnan region, the surface attenuation pattern at horizontal and vertical peak acceleration is studied by regressive analyzing method.
根据云南地区的实测强震加速度资料，采用回归分析法研究了云南地区的地面水平、垂直峰值加速度衰减规律。
3
Attenuation rule of the peak value of explosion stress wave vs. distances is one of the theoretical bases for designing engineering blasting parameters.