陆凡东;方向;高振儒;郭涛;张岩;
LU Fan-dong1,FANG Xiang1,GAO Zhen-ru1,GUO Tao1,ZHANG Yan2(1.Engineering Institute of Engineering Corps,PLA Univ.of Sci.& Tech.,Nanjing 210007,China;2.66028 PLA troops,Chengde 067000,Hebei,China)

• 1:解放军理工大学工程兵工程学院
• 2:66028部队

摘要(Abstract)：

为揭示防波堤爆破挤淤施工对在建核设施监测区域爆破振动强度和频谱特征的影响规律,对现场测试的数据进行回归和小波包分析。结果表明:降低爆破挤淤振动效应的两个关键措施是控制一次起爆药量和爆破地震波主传方向;爆破挤淤炸药能量转化为地震波的比例明显高于陆地爆破;爆破振动能量在监测区域显著集中于低频频带,高频成分基本消失。
In order to reveal the influence law of breakwater blasting toe-shooting method on nuclear facility under construction in terms of vibration intensity and frequency spectrum characteristics,test data regression and wavelet package analysis of its signals were carried out.Results show that controlling single deck explosion and chief propagation direction of blasting seismic wave are two key measures of reducing vibration effect,the proportion of explosives convert to seismic wave of blasting toe-shooting method blast is higher than that of land blast,and blast vibration energy remarkably concentrates on low frequency band with the higher frequency components being disappeared.

关键词(KeyWords)： 爆破挤淤;在建核设施;振动效应;回归;小波包分析
Blasting toe-shooting method;Nuclear facility under construction;Vibration effect;Regression;Wavelet package analysis

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 陆凡东;方向;高振儒;郭涛;张岩;
LU Fan-dong1,FANG Xiang1,GAO Zhen-ru1,GUO Tao1,ZHANG Yan2(1.Engineering Institute of Engineering Corps,PLA Univ.of Sci.& Tech.,Nanjing 210007,China;2.66028 PLA troops,Chengde 067000,Hebei,China)

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