[1]陈建龙①②.爆破地震波传播过程中的多普勒效应研究[J].爆破器材,2021,50(01):48-52.[doi:10.3969/j.issn.1001-8352.2021.01.009]
　CHEN Jianlong.Doppler Effect in Propagation of Blasting Seismic Wave[J].EXPLOSIVE MATERIALS,2021,50(01):48-52.[doi:10.3969/j.issn.1001-8352.2021.01.009]
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爆破地震波传播过程中的多普勒效应研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
50
期数:
2021年01
页码:
48-52
栏目:
爆破技术
出版日期:
2021-01-22

文章信息/Info

Title:
Doppler Effect in Propagation of Blasting Seismic Wave
文章编号:
5461
作者:
陈建龙①②
①中铁第一勘察设计院集团有限公司（陕西西安，710043）
②陕西省铁道及地下交通工程重点实验室（中铁一院）（陕西西安，710043）
Author(s):
CHEN Jianlong①②
① China Railway First Survey and Design Institute Group Co., Ltd. (Shaanxi Xi＇an, 710043)
② Shaanxi Railway and Underground Traffic Engineering Key Laboratory (FSDI) ( Shaanxi Xi＇an, 710043)
关键词:
多普勒效应; 爆破地震波; 频谱分析
Keywords:
Doppler effect;  blasting seismic wave;  spectral analysis
分类号:
TD235
DOI:
10.3969/j.issn.1001-8352.2021.01.009
文献标志码:
A
摘要:
为研究爆破施工中毫秒延时爆破作用的频谱特性，采用理论推导和数值模拟相结合的方法进行分析与计算。利用模态识别方法对炮孔间隔时间为25 ms的延时爆破振动数据进行频谱特性分析，得到爆源左、右两侧的爆破振动频率分别约为35 Hz和45 Hz的整数倍。进一步分析可得，这是由于爆破地震波在传播过程中发生多普勒效应,导致不同方向上的频率发生偏移，使得爆源两侧的爆破振动频率值存在差异。据此，实际爆破施工中可以利用多普勒效应进行爆破振动频率的调控。
Abstract:
In order to study the spectrum characteristics of millisecond delay blasting in blasting construction, theoretical derivation and numerical simulation were combined to analyze and calculate. Modal identification method was used to analyze the frequency spectrum characteristics of the time-delay blasting vibration data with the time interval of 25 ms and the blasting vibration frequency on the left and right sides of the blasting source is about an integer multiple of 35 Hz and 45 Hz, respectively. Further analysis shows that it is due to Doppler effect of blasting seismic wave in the propagation process, which causes the frequency deviation in different directions, resulting in the difference of blasting vibration frequency values on both sides of the blasting source. Therefore, Doppler effect can be used to control the blasting vibration frequency.

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备注/Memo

备注/Memo:
收稿日期：2020-03-18
第一作者：陈建龙(1993－ )，男，硕士，助理工程师，主要从事地下空间及岩土工程方面的研究。E-mail：chenjianlong@whu.edu.cn
更新日期/Last Update: 2021-01-21