煤矿安全2017，Vol.48Issue(2)：76-78,82,4.DOI:10.13347/j.cnki.mkaq.2017.02.020
露天煤矿爆破地震波衰减规律的频谱特性
Frequency Spectrum Characteristics of Blasting Seismic Wave Attenuation Laws in Surface Coal Mine
摘要
Abstract
The propagation of blasting seismic wave is influenced by many factors,and the theoretical relationship between seismic wave attenuation and frequency spectrum is derived based on the energy condition of blasting seismic wave.Based on wavelet packet analysis method,the seismic waves in a surface coal mine are decomposed and reconstructed,and the attenuation laws of seismic waves in different frequency bands is analyzed.The results show that the attenuation of blasting seismic wave is proportional to the vibration frequency,and the ratio of low frequency band energy to total energy increases with the increase of propagation distance.关键词
爆破震动/地震波/衰减规律/小波包/频谱/露天煤矿Key words
blasting vibration/seismic wave/attenuation rule/wavelet packet/frequency spectrum/surface coal mine分类
矿业与冶金引用本文复制引用
高富强,张光雄,杨军..露天煤矿爆破地震波衰减规律的频谱特性[J].煤矿安全,2017,48(2):76-78,82,4.基金项目
国家自然科学基金资助项目(51204096) （51204096）
河南省高校科技创新团队支持计划资助项目(14IRTSTHN029) （14IRTSTHN029）
河南省高校科技创新人才支持计划资助项目(17HASTIT033) （17HASTIT033）
