HHT能量判别法在英坪矿爆破振动中的应用  

THE APPLICATION OF HHT ENERGY DISCRIMINANCE IN BLASTING VIBRATION OF YINGPING MINE

作　　者：李宝山[1,2] 张义平[1,3] 

机构地区：[1]贵州大学矿业学院,贵阳550025 [2]贵州省优势矿产资源高效利用工程实验室,贵阳550025 [3]贵州非金属矿产资源综合利用重点实验室,贵阳550025

出　　处：《工程爆破》2013年第6期13-16,21,共5页Engineering Blasting

基　　金：国家自然科学基金项目(50764001);贵州省重大科技专项(1091115)

摘　　要：通过EMD分解法将瓮福磷矿英坪矿段Ⅱ号坑爆破振动信号分解,得出IMF分量,经Hilbert变换后,进一步得出瞬时能量谱和能量等效速度,以此作为安全评价指标。HHT能量判别法综合反映了爆破振动的幅值和能量分布特征,同时体现了爆破振动三要素(振动强度、频率、持续时间),更能准确反映爆破振动的危害。Blasting vibration signals in No.2 pit in Yingping Mine Area of Wengfu Phosphate Rock was decomposed to the imf components By means of EMD,and further instantaneous energy spectra and energy equivalent velocity were obtained through Hilbert transformation which were used as security evaluation indicators.The characteristics of amplitude and energy distribution in blasting vibration and three elements（vibration intensity,frequency and duration）of blasting vibration were comprehensively reflected by HHT energy discriminance.And it could precisely describe hazards caused by blasting vibration.

关 键 词：HHT 瞬时能量 等效速度 能量判别 

分 类 号：O173.1[理学—数学]