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Volume 40 Issue 5
Oct.  2021
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Article Navigation >  CARSOLOGICA SINICA  > 2021  >  40(5): 894-900
ZHANG Wei,LV Yong,GAN Fuping,et al.Experimental study of passive source surface wave under artificial vibration field source[J].Carsologica Sinica,2021,40(05):894-900. doi: 10.11932/karst20210514
Citation: ZHANG Wei,LV Yong,GAN Fuping,et al.Experimental study of passive source surface wave under artificial vibration field source[J].Carsologica Sinica,2021,40(05):894-900. doi: 10.11932/karst20210514
shu

Experimental study of passive source surface wave under artificial vibration field source

doi: 10.11932/karst20210514

  • Institute of Karst Geology， CAGS/Key Laboratory of Karst Dynamics，MNR & GZAR，Guilin，Guangxi 541004，China

Funds:

 DD20190022

  • Received Date: 2021-03-30
  • Publish Date: 2021-10-25
    Abstract
  • High frequency information is missing due to the excessive equalization and quietness of ambient noise in the traditional measurement of passive source surface wave. In order to broaden the frequency range of the signal of passive source surface wave， artificial vibration sources are loaded in the continuous measurement of passive source surface wave. The researchers use a linear array to observe two areas with different noise levels on the roadside and in an abandoned factory for 16 minutes. The spatial autocorrelation method（SPAC/ESPAC）is applied to the measured surface data of different ambient noise levels which are observed by controlling the vehicles on the road and in the abandoned factory. The results show that the high frequency information of the dispersion curve of surface significantly increases when vehicles passing by， compared to that of quiet environment under the same observation mode at the same position. Therefore， the author believes that the artificial loading of vibration source can broaden the high frequency information of passive source surface wave ， and it is significantly applicable to improve the resolution of shallow strata.

     

    • ZHANG Wei,LV Yong,GAN Fuping,et al.Experimental study of passive source surface wave under artificial vibration field source[J].Carsologica Sinica,2021,40(05):894-900.
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