模拟井水中接收的声发射信号波形特征

陈冲; 吕震; 刘兵; 王风; 孔祥斌; 李木森

模拟井水中接收的声发射信号波形特征

陈冲¹,
吕震¹,
刘兵¹,
王风¹,
孔祥斌²,
李木森^1,3

1.
山东省超硬材料工程技术研究中心，邹城273500
2.
邹城市地震局，邹城273500
3.
山东大学材料科学与工程学院，济南250061

详细信息

作者简介:
陈冲(1986-)，男，助理工程师，主要从事无损检测方面的研究。

中图分类号: TG115.28
计量
- 文章访问数: 0
- HTML全文浏览量: 0
- PDF下载量: 0
出版历程
- 收稿日期: 2013-01-14
- 刊出日期: 2013-09-09

Waveform Characteristics of Acoustic Emission Signals through the Simulation System of Well Water

摘要

摘要: 采用全波形声发射信号分析仪接收由声波发生器在模拟水井底部激发的声发射(AE)信号，对其波形进行了时域分析、频域分析及小波变换，并与不经任何传播介质直接被接收的AE信号进行对比。结果表明，经模拟水井系统传播后，AE信号的幅度、振铃计数、总能量均明显下降，而持续时间则相对增加；两者经小波变换后的各分解层能量比例基本一致。
- 声发射信号 /
- 幅度 /
- 能量 /
- 时域分析 /
- 频域分析 /
- 小波变换
Abstract: The acoustic emission signal excited on the simulated well bottom and transmitted through the well water was received by using a full wave acoustic emission signal analyzer, and the time domain analysis, frequency domain analysis and wavelet transform were used to analyse these waveforms of the AE signals. These simulated AE signals were also compared with the signals directly received by the AE signal analyzer. The results showed that the amplitude, ringdown count, and the total energy of the simulated AE signals decreased obviously through the well simulation system, but the duration times was relatively increased. The energy ratio of each decomposed level for two kinds of the AE signals was consistent after the wavelet transform.
- Acoustic emission signal /
- Amplitude /
- Energy /
- Time domain analysis /
- Frequency domain analysis /
- Wavelet transform

HTML全文

参考文献(13)

[1]	CHEON DAE-SUNG, JUNG YONG-BOK, PARK EUI-SEOB, et al. Evaluation of damage level for rock slopes using acoustic emission technique with waveguides［J］.Engineering Geology,2011,121:75-88.
[2]	TYUPKIN Yu S, GIOVAMBATTISTA R Di. Correlation length as an indicator of critical point behavior prior to a large earthquake［J］. Earth and Planetary Science Letters,2005,230:85-96.
[3]	WANG Hong-liang, GE Mao-chen. Acoustic emission/microseismic source location analysis for a limestone mine exhibiting high horizontal stresses［J］. International Journal of Rock Mechanics & Mining Sciences,2008,45:720-728.
[4]	马瑾，马文涛，马胜利，等.5°拐折构造变形物理场的试验研究与数值模拟［J］.地震地质，1995,17(4):318-326.
[5]	马胜利，陈顺云，刘培洵，等.断层阶区对滑动行为影响的试验研究［J］.中国科学D辑:地球科学,2008,38(7):842-851.
[6]	路鹏，李志雄，陶本藻，等.震级频度与古登堡-里克特关系式偏离的前兆意义［J］.地震,2006,26(4):1-7.
[7]	PONOMAREV A V, ZAVYALOV A D, SMIRNOV V B, et al. Physical modeling of the formation and evolution of seismically active fault zones［J］.Tectonophysics,1997,277:57-81.
[8]	LEI Xing-lin, KOJI MASUDA, OSAMU NISHIZAWA, et al. Detailed analysis of acoustic emission activity during catastrophic fracture of faults in rock［J］.Journal of Structural Geology,2004,26:247-258.
[9]	国家地震局预测预防司编，地下流体地震预报方法［M］.北京:地震出版社,1997.
[10]	耿杰，张昭栋，魏焕，等.唐山地震前后地下水动态图像及其形成演化模式［J］.地震地质,1998,20(3):255-260.
[11]	林淑真，李宗仰，陈暐家.台湾地区9.21及3.31地震的地下水位异常统计与介入分析［J］.地震地质,2003,26(4):321-327.
[12]	兰双双，迟宝明.汶川地震近区深层井孔-含水层系统水位异常响应研究［J］.水文地质与工程地质,2010,37(2):1-5.
[13]	胡先明.深井水位记震能力与地震预报［J］.大地测量与地球动力学，2007,27(6):74-78.

施引文献

资源附件(0)

计量

文章访问数: 0
HTML全文浏览量: 0
PDF下载量: 0
被引次数: 0

模拟井水中接收的声发射信号波形特征

作者简介: 陈冲(1986-)，男，助理工程师，主要从事无损检测方面的研究。

计量

出版历程

Waveform Characteristics of Acoustic Emission Signals through the Simulation System of Well Water

计量

出版历程

目录

作者简介:
陈冲(1986-)，男，助理工程师，主要从事无损检测方面的研究。