煤矿安全2018，Vol.49Issue(4)：201-204,4.DOI:10.13347/j.cnki.mkaq.2018.04.052
基于HHT方法的煤矿深立井掘进爆破振动信号分析
Analysis of Blasting Vibration Signals of Deep Vertical Shaft Excavation Based on HHT Method
摘要
Abstract
The analysis of blasting vibration signal is an important basis for the determination of blasting parameters. Taking the excavation engineering of Taoyuan downcast shaft in Shanxi Lu'an Group Gucheng Coal Mine as the background, the blasting vibration signals of well wall in the construction process of shaft construction are analyzed by HHT. We carry out the EMD decomposition for blasting signals, get the IMF components of signals, and transform the principal component signals by Hilbert and obtain envelope curve, accurately identify the actual millisecond interval of blasting detonator, and obtain the Hilbert frequency spectrum of the signals. The analysis shows that the HHT method is adaptive and suitable for fine feature extraction of vertical blasting signals.关键词
立井爆破/爆破信号/HHT/微差识别/IMF/HilbertKey words
vertical shaft blasting/blasting signal/Hilbert-Huang Transform (HHT)/millisecond identification/IMF/Hilbert分类
矿业与冶金引用本文复制引用
杨计先,马洁腾,陈帅志,付晓强..基于HHT方法的煤矿深立井掘进爆破振动信号分析[J].煤矿安全,2018,49(4):201-204,4.基金项目
国家自然科学基金青年科学基金资助项目(51404273) （51404273）
