基于EMD-HHT和小波理论的地下浅孔爆破振动规律研究  

Research on Vibration Law of Underground Shallow Hole Blasting Based on EMD-HHT and Wavelet Theory

作　　者：李祥龙[1] 赵泽虎 王建国[1] 何丽华[3] 张其虎 杜贤江 LI Xianglong;ZHAO Zehu;WANG Jianguo;HE Lihua;ZHANG Qihu;DU Xianjiang(School of Land Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China;Faculty of Public Safety and Emergency Management,Kunming University of Science and Technology,Kunming 650093,China;Faculty of Mining Industry,Kunming Metallurgy College,Kunming 650093,China;Geological Brigade 209 of Yunnan Nuclear Industry,Kunming 650000,China)

机构地区：[1]昆明理工大学国土资源与工程学院,昆明650093 [2]昆明理工大学公共安全与应急管理学院,昆明650093 [3]昆明冶金高等专科学校矿业学院,昆明650093 [4]云南省核工业二0九地质大队,昆明650000

出　　处：《有色金属工程》2021年第12期100-108,共9页Nonferrous Metals Engineering

基　　金：国家自然科学基金资助项目(52064025)。

摘　　要：为了深入研究爆破振动波的传播规律,基于EMD-HHT和小波理论分析了金沙矿业官房矿区402矿段的爆破振动信号。结果表明:爆破振动信号的优势能量频率带和能量分布时间主要集中在50 Hz、0.65 s以内,爆破振动能量的最大值为0.0111 cm^(2)/s^(2),能量分布主要呈正态分布,在频率为20 Hz时能量分布达到了峰值,占爆破振动能量的11.8%,爆破振动信号的最大瞬时能量随着最大单响药量的增加逐渐加大。In order to deeply study the propagation law of blasting vibration wave,based on EMD-HHT and wavelet theory,the blasting vibration signal of the 402 section of the Guanfang mining area of Jinsha Mining was analyzed.The analysis results show that the dominant energy frequency band and energy distribution time of blasting vibration signals are mainly concentrated within 50 Hz and 0.65 s,the maximum value of blasting vibration energy is 0.0111 cm^(2)/s^(2),and the energy distribution is mainly normal distribution,and the energy distribution reached the peak value at 20 Hz,accounting for 11.8%of the blasting vibration energy.The maximum instantaneous energy of the blasting vibration signal gradually increased with the increase of the maximum single-shot charge.

关 键 词：能量分布 EMD-HHT分析 小波理论 爆破振动信号波 

分 类 号：TD235.32[矿业工程—矿井建设]