爆破振动对临近建筑物安全影响研究  

The Influence of Blasting Vibration on the Safety of Adjacent Buildings

作　　者：胡辉[1] 李祥龙[1] 石晨晨 胡启文 骆浩浩 

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093

出　　处：《中国钨业》2017年第5期42-48,共7页China Tungsten Industry

基　　金：国家自然科学基金(51564027;51304087;41362013)

摘　　要：为了研究某露天矿采场爆破作业对附近选厂内建筑安全性的影响,采用爆破振动监测系统在选厂内对两次不同最大单孔药量下的爆破作业进行监测。基于希尔伯特-黄变换(HHT)分析法,对两种情况下监测产生的振动信号数据进行分析研究,结果表明:两种情况下爆破振动信号的优势能量频带都在0~10 Hz,且随着最大单孔药量的增加,振动频率有往低频集中以及瞬时输入能量增大的趋势;结合《爆破安全规程》(GB6722—2014)中对于工业建筑安全允许标准,确定该选厂建筑最大安全允许振速为2.5 cm/s。To study the influence of a blasting operation on the safety of the nearby buildings, the blasting vibrationmonitoring system was used to monitor the blasting operation under two different maximum single hole doses in theelectromechanical plant. Based on the Hilbert-Huang Transformation （HHT） analysis method, the vibration signaldata of the two cases are analyzed. The results show that the dominant energy band of the blasting vibration signal is0～10 Hz in both cases, and with the increase of the maximum single hole dose, vibration frequency to the lowfrequency concentration and instantaneous input energy increase trend; combined with ＂ Safety regulations forBlasting ＂ （GB6722-2014） for industrial building safety allowable standards to determine the maximum safety of theplant construction allowable vibration speed of 2.5 cm/s.

关 键 词：临近建筑 爆破振动 HHT EMD 质点峰值振速 

分 类 号：TD235[矿业工程—矿井建设]