• 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引(EI)收录期刊
  • Scopus数据库收录期刊

岩石变形破坏次声异常的能量特征研究

徐洪, 周廷强

徐洪, 周廷强. 岩石变形破坏次声异常的能量特征研究[J]. 岩土工程学报, 2016, 38(6): 1044-1050. DOI: 10.11779/CJGE201606010
引用本文: 徐洪, 周廷强. 岩石变形破坏次声异常的能量特征研究[J]. 岩土工程学报, 2016, 38(6): 1044-1050. DOI: 10.11779/CJGE201606010
XU Hong, ZHOU Ting-qiang. Energy characteristics of infrasound abnormality during rock deformation and failure of rock[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(6): 1044-1050. DOI: 10.11779/CJGE201606010
Citation: XU Hong, ZHOU Ting-qiang. Energy characteristics of infrasound abnormality during rock deformation and failure of rock[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(6): 1044-1050. DOI: 10.11779/CJGE201606010

岩石变形破坏次声异常的能量特征研究  English Version

基金项目: 国家自然科学基金项目(41202252)
详细信息
    作者简介:

    徐洪(1979- ),男,博士,高级工程师,主要从事岩土工程相关的科研工作。E-mail: njzy_fengyu@qq.com。

Energy characteristics of infrasound abnormality during rock deformation and failure of rock

  • 摘要: 采用室内试验方法,对8组砂岩试件进行了压缩破坏试验,同步记录岩石变形破坏过程中的次声信号,采用小波分析方法对异常信号的能量特征进行了分析研究。结果表明:岩石变形破坏次声异常信号能量主要集中在3.91~7.81 Hz的中频段和7.81~15.62 Hz的高频段两个频率范围内,其中中频段能量大于高频段能量,同时在低频段0~3.19 Hz内也存在一定的能量分布,通过不同频段能量分布对比,可对信号进行识别;随着岩石变形破坏程度的增加,次声异常信号的中低频段能量在相对减少,而高频段能量相对增加,在岩石临近破坏前,次声信号的中低频段能量与高频段能量的比值接近1。以上几个方面特征的发现,为岩石变形破坏的次声异常信号识别及破坏前兆预警提供了重要的依据。
    Abstract: Eight groups of axial compression tests on sandstone are conducted in laboratory. The infrasound signals of each test process are recorded synchronously, and then the energy characteristics of each specimen are analyzed using the wavelet decomposition method. The results show that the infrasound energy of rock failure is mainly concentrated in two frequency bands. One is the medium frequency band with frequency range of 3.91~7.81 Hz, and the other is the high frequency band with frequency range of 7.81~15.62 Hz. The energy of the former is higher than that of the latter. At the same time there still exists a certain amount of energy with frequency range of 0~3.91 Hz in the signal. By comparing the energy distribution in different frequency bands, the infrasound of rock deformation and failure can be recognized. With the increasing degree of rock deformation, the energy with medium and low frequency bands decreases, and the energy with high frequency band increases relatively. When rock failure is coming, the ratio of the energy in medium and low frequency bands to that in high frequency band is near 1. The discovery of the above characteristics of infrasound during deformation and failure of rock may provide an important basis for recognizing infrasound signals and failure warning of rock.
  • [1] 康玉梅, 朱万成, 白 泉, 等. 基于小波变换时频能量分析技术的岩石声发射信号延时估计[J].岩石力学与工程学报, 2010, 29(5): 1010-1016. (KANG Yu-mei, ZHU Wan-cheng, BAI Quan, et al. Time-delay estimation of acoustic emission signals of rock using time-frequency energy analysis based on wavelet transform[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(5): 1010-1016. (in Chinese))
    [2] 谢 强, CARLUOS D G, 余贤斌. 细晶花岗岩的声发射特征试验研究[J]. 岩土工程学报, 2008, 30(5): 745-749. (XIE Qiang, CARLUOS D G, YU Xian-bin. Acoustic emission behaviors of aplite granite[J]. Chinese Journal of Geotechnical Engineering, 2008, 30(5): 745-749. (in Chinese))
    [3] 李庶林, 尹贤刚, 王泳嘉, 等. 单轴受压岩石破坏全过程声发射特性研究[J]. 岩石力学与工程学报, 2004, 23(15): 2499-2503. (LI Shu-lin, YIN Xian-gang, WANG Yong-jia, et al. Studies of acoustic emission characteristics of uniaxial compressive rock failure[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(15): 2499-2503. (in Chinese))
    [4] 刘新平, 刘 英, 陈 顒. 单轴压缩条件下岩石样品声发射信号的频谱分析[J]. 声学学报, 1986, 11(2): 80-87. (LIU Xin-ping, LIU Ying, CHEN Yong. Spectral analysis of acoustic emissions of rock specimen during uniaxial compression[J]. Acta Acustica, 1986, 11(2): 80-87. (in Chinese))
    [5] 蔡美峰, 来兴平. 岩石基复合材料支护采空区动力失稳声发射特征统计分析[J]. 岩土工程学报, 2003, 25(1): 51-54. (CAI Mei-feng, LAI Xing-ping. Statistical analysis of the character of acoustic emission for nonlinear dynamical damage in mined out areas supported by composite rock materials[J]. Chinese Journal of Geotechnical Engineering, 2003, 25(1): 51-54. (in Chinese))
    [6] 陈 强, 朱宝龙, 胡厚田. 岩石Kaiser 效应测定地应力场的试验研究[J]. 岩石力学与工程学报, 2006, 25(7): 1371-1376. (CHEN Qiang, ZHU Bao-long, HU Hou-tian. Experimental research on measurement of in-situ stress field by kaiser effect[J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(7): 1371-1376. (in Chinese)
    [7] 易 武, 孟召平. 岩质边坡声发射特征及失稳预报判据研究[J]. 岩土力学, 2007, 28(12): 2530-2538. (YI Wu, MENG Zhao-ping. Study on acoustic emission feature of rock slope and its instability forecast criterion[J]. Rock and Soil Mechanics, 2007, 28(12): 2530-2538. (in Chinese))
    [8] 熊庆国. 声发射信号在岩体中传播的衰减[J]. 工业安全与防尘, 1994, 11: 38-40. (XIONG Qin-guo. The attenuation of AE signal propagation in rock body[J]. Journal of Industrial Safety and Dustproof, 1994, 11: 38-40. (in Chinese))
    [9] 李俊平, 周创兵. 岩体的声发射特征试验研究[J]. 岩土力学, 2004, 25(3): 374-378. (LI Jun-ping, ZHOU Chuang-bing. Experimental research on acoustic emission characteristics of rock mass[J]. Rock and Soil Mechanics, 2004, 24(3): 374-378. (in Chinese))
    [10] 李均之, 曹 明, 夏雅琴, 等. 岩石压缩试验与震前电磁波辐射的研究[J]. 北京工业大学学报, 1982, 4: 47-53. (LI Jun-zhi, CAO Ming, XIA Ya-qin, et al. An experimental study on rock compressing and emission of electromagnetic waves before earthquake[J]. Journal of Beijing University of Technology, 1982, 4: 47-53. (in Chinese))
    [11] BEDARD A J Jr. Infrasonic and near infrasonic atmospheric sounding and imaging[C]// Seattle: NOAA/ERL/ Environmental Technology Laboratory, 1996.
    [12] 曾小苹, 王曌燚, 蒋 璀, 等. 三峡库区2009年9月地质灾害的电磁解析初探[C]// 2009年天灾预测总结学术研讨会论文集. 北京, 2009. (ZENG Xiao-ping, WANG Zhao-yi, JIANG Cui, et al. Preliminary analysis of electromagnetism of geological disasters in the Three Gorges Reservoir Area in September 2009[C]// Proceedings of Conference on Summarizing of Disaster Prediction 2009. Beijing, 2009. (in Chinese))
    [13] ZHU Xing, XU Qiang, et al. Experimental study of infrasonic signal generation during rock fracture under uniaxial compression[J]. International Journal of Rock Mechanics & Mining Sciences, 2013, 60: 37-46.
    [14] 朱 星, 许 强, 汤明高, 等. 典型岩石破裂产生次声波实验研究[J]. 岩土力学, 2013, 34(5): 1306-1311. (ZHU Xing, XU Qiang, TANG Ming-gao, et al. Experimental study of infrasound wave generated by typical rock fracture[J]. Rock and Soil Mechanics, 2013, 34(5): 1306-1311. (in Chinese))
    [15] 朱 星, 许 强, 邓茂林, 等. 岩石次声波滤波处理新技术—Sallen-Key数学模型[J]. 煤炭学报, 2013, 38(8): 1358-1361. (ZHU Xing, XU Qiang, DENG Mao-lin, et al. A novel filter technology of rock’s infrasound: Sallen-Key numerical model[J]. Journal of China Coal Society, 2013, 38(8): 1358-1361. (in Chinese))
    [16] 金解放, 赵 奎, 王晓军, 等. 岩石声发射信号处理小波基选择的研究[J]. 矿业研究与开发, 2007, 27(2): 12-15. (JIN Jie-fang, ZHAO Kui, WANG Xiao-jun, et al. Study on selection of wavelet basis for processing of rock acoustic emission signal[J]. Mining Research and Development, 2007, 27(2): 12-15. (in Chinese))
    [17] 胡广书. 现代信号处理教程[M]. 北京: 清华大学出版社, 2004. (HU Guang-shu. Modern signal processing tutorial[M]. Beijing: Tsinghua University Press, 2004. (in Chinese))
计量
  • 文章访问数:  562
  • HTML全文浏览量:  4
  • PDF下载量:  317
  • 被引次数: 0
出版历程
  • 收稿日期:  2015-05-14
  • 发布日期:  2016-06-24

目录

    /

    返回文章
    返回