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| 冻结立井爆破振动信号多重分形去趋势波动分析 | |
| 引用本文： | 付晓强,杨仁树,崔秀琴,刘幸,刘纪峰,雷振.冻结立井爆破振动信号多重分形去趋势波动分析[J].振动与冲击,2020,39(6):51-58. |
| 作者姓名： | 付晓强 杨仁树 崔秀琴 刘幸 刘纪峰 雷振 |
| 作者单位： | 1. 三明学院建筑工程学院，福建三明365004； 2.三明学院工程材料与结构加固福建省高等学校重点实验室，福建三明365004； 3.北京科技大学土木与资源工程学院，北京100083； 4.贵州理工学院矿业工程学院，贵阳550003 |
| 基金项目： | 三明学院引进高层次人才科研启动经费资助(18YG13);三明市引导性科技项目计划(2019-S-28);国家重点研发计划资助项目(2016YFC0600903)。 |
| 摘 要： | 针对基于配分函数的多重分形分析不利于局部标度特性突显的问题,把多重分形去趋势波动分析(MF-DFA)方法引入到爆破振动信号分析领域。研究表明:立井爆破振动信号具有多重分形特征,在周边眼不同装药形式下爆破信号MF-DFA谱和多重分形奇异谱具有显著差异,可作为判别周边装药结构形式的特征参数。MF-DFA谱图及其相关参数可以表征立井不同爆破方案下井壁振动响应状态特征,为炮孔装药结构和装药参数的识别与分类提供了一种有效的方法。 |
| 关 键 词： | 爆破振动 切缝药包 冻结立井 MD-DFA谱 |
Multi-fractal detrended fluctuation analysis of the blasting vibration signal in a frozen shaft |
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| FU Xiaoqiang,YANG Renshu,CUI Xiuqin,LIU Xing,LIU Jifeng,LEI Zhen.Multi-fractal detrended fluctuation analysis of the blasting vibration signal in a frozen shaft[J].Journal of Vibration and Shock,2020,39(6):51-58. | |
| Authors: | FU Xiaoqiang YANG Renshu CUI Xiuqin LIU Xing LIU Jifeng LEI Zhen |
| Affiliation: | 1.School of Civil Engineering, Sanming University, Sanming 365004, China; 2.Key Laboratory of Engineering Material & Structure Reinforement in Fujian Province College, Sanming University, Sanming 365004, China; 3.School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China; 4.Institute of Mining Engineering, Guizhou Institute of Technology, Guiyang 550003, China |
| Abstract: | Considering that the multi-fractal analysis based on the partition function is not conducive to highlighting the local scale characteristics,the multi-fractal detrended fluctuation analysis(MF-DFA)method was introduced into the field of blasting vibration signal analysis.The results show that the vertical shaft blasting vibration signal has multi-fractal characteristics,the MF-DFA spectrum and multi-fractal singular spectrum have significant diversity for the explosive loading form in the cases of different settlement types of peripheral holes,so,they can be used as characteristic parameters to distinguish the structure form of peripheral charge.The MF-DFA spectrum diagram and related parameters can characterize the vibration response state of the shaft lining under different blasting schemes.The study provides an effective method for the identification and classification of blast hole charge structure and charge parameters. |
| Keywords: | blasting vibration slotted cartridge frozen shaft multi-fractal detrended fluctuation analysis(MF-DFA) spectrum |
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