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

作　　者：杨计先 马洁腾 陈帅志 付晓强[2] YANG Jixian;MA Jieteng;CHEN Shuaizhi;FU Xiaoqiang(Gucheng Mine Construction Management Office, Shanxi Lu＇an Group, Tunliu 046100, Ghina;School of Mechanics and Civil Engineering, China University of Mining and Technology （Beijing）, Beijing 100083, China)

机构地区：[1]山西潞安集团古城煤矿建设管理处,山西屯留046100 [2]中国矿业大学(北京)力学与建筑工程学院,北京100083

出　　处：《煤矿安全》2018年第4期201-204,共4页Safety in Coal Mines

基　　金：国家自然科学基金青年科学基金资助项目(51404273)

摘　　要：爆破振动信号分析是爆破参数确定的重要依据。以潞安古城煤矿桃园进风井掘进工程为背景,对立井掘进施工过程中井壁振动信号进行了HHT分析。对爆破信号进行EMD分解,得到信号的各IMF分量,对主分量信号进行Hilbert变换并求取包络线,准确识别出立井爆破雷管实际微差间隔时间并获得信号的Hilbert时频谱。分析表明:HHT方法自适应性强,适合于对立井爆破信号进行精细化特征提取。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 HILBERT 

分 类 号：TD235.1[矿业工程—矿井建设]