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Volume 22 Issue 2
Apr 2011
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Journal of Earth Science  > 2011  >  22(2): 231-240.
Shuangxi Zhang, Mengkui Li. Influence of Uneven Trace Spacing on Rayleigh Wave Dispersion. Journal of Earth Science, 2011, 22(2): 231-240. doi: 10.1007/s12583-011-0176-7
Citation: Shuangxi Zhang, Mengkui Li. Influence of Uneven Trace Spacing on Rayleigh Wave Dispersion. Journal of Earth Science, 2011, 22(2): 231-240. doi: 10.1007/s12583-011-0176-7
shu

Influence of Uneven Trace Spacing on Rayleigh Wave Dispersion

doi: 10.1007/s12583-011-0176-7
  • 1.

    School of Geodesy and Geomatics, Wuhan University, Wuhan, 430079, China

  • 2.

    The Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan, 430079, China

  • 3.

    School of Geodesy and Geomatics, Wuhan University, Wuhan, 430079, China

More Information
  • Corresponding author: Shuangxi ZHANG, shxzhang@sgg.whu.edu.cn
  • Received Date: 30 Aug 2010
  • Accepted Date: 05 Jan 2011
  • Publish Date: 01 Apr 2011
    Abstract
  • Rayleigh wave dispersion signals are significant to underground investigation. Traditionally, uniformed trace spacing is employed in surface wave surveys. In some cases, however, uneven trace spacing is often encountered because of the limitations of the site condition. In order to study the influence of uneven trace spacing on the dispersion data construction of Rayleigh waves, data acquisition is performed based on a 2.5D field layout with a linear array of geophones fixed and a mobile source. The observation direction controls the trace spacing of the measurement. The final results demonstrate that the trace nonuniformity has significant influence on the Rayleigh wave dispersion feature constructed. When the observation angle is over 45°, the dispersion image will be too distorted to extract dispersion data correctly.

     

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