Determination of attenuation and geometric damping on clayey sand residual soil in irregular profile using surface wave method

S. A. Rosyidi, Mohd. Raihan Taha, Z. Chik, Amiruddin Ismail

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The spectral analysis of surface wave (SASW) method is a non-destructive testing technique base on the Rayleigh wave dispersion that has been advanced in this study for the evaluation of the material properties of the soil subgrade structure in irregular profile, i.e. pavement system. The Rayleigh wave is generated by transient impact sources and then the wave motion is processed using the spectrum analyzer to obtain the amplitude spectrum of vertical displacement in the frequency domain. The objective of this study is to describe the procedure of the SASW method for determining the frequency-independent attenuation, a0 and the geometric damping ratio, D of the soil structure. Both parameters are useful for dynamic geotechnical structural design. A frequency-independent attenuation empirical coefficient (a 0) of the Bornitz equation was obtained from the auto power spectrum produced by the spectrum analyzer. Subsequently the damping ratio (D) was able to be calculated using the attenuation coefficient parameter from the Bornitz model. The damping ratio obtained by the Bornitz model was similar to the values calculated using Spectral Ratio and Transfer Function model. Good agreement was also found between the values obtained in this study compared to that of other researchers.

Original languageEnglish
Title of host publication12th International Conference on Computer Methods and Advances in Geomechanics 2008
Pages2658-2670
Number of pages13
Volume4
Publication statusPublished - 2008
Event12th International Conference on Computer Methods and Advances in Geomechanics 2008 - Goa
Duration: 1 Oct 20086 Oct 2008

Other

Other12th International Conference on Computer Methods and Advances in Geomechanics 2008
CityGoa
Period1/10/086/10/08

Fingerprint

residual soil
Surface Waves
Attenuation
Surface waves
surface wave
damping
Soil
Irregular
Damping
Rayleigh waves
Spectrum analyzers
Sand
Soils
Rayleigh Waves
Spectrum analysis
sand
Rayleigh wave
Spectral Analysis
spectral analysis
Power spectrum

Keywords

  • Frequency-independent attenuation
  • Geometric damping
  • SASW method

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Applied Mathematics

Cite this

Rosyidi, S. A., Taha, M. R., Chik, Z., & Ismail, A. (2008). Determination of attenuation and geometric damping on clayey sand residual soil in irregular profile using surface wave method. In 12th International Conference on Computer Methods and Advances in Geomechanics 2008 (Vol. 4, pp. 2658-2670)

Determination of attenuation and geometric damping on clayey sand residual soil in irregular profile using surface wave method. / Rosyidi, S. A.; Taha, Mohd. Raihan; Chik, Z.; Ismail, Amiruddin.

12th International Conference on Computer Methods and Advances in Geomechanics 2008. Vol. 4 2008. p. 2658-2670.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rosyidi, SA, Taha, MR, Chik, Z & Ismail, A 2008, Determination of attenuation and geometric damping on clayey sand residual soil in irregular profile using surface wave method. in 12th International Conference on Computer Methods and Advances in Geomechanics 2008. vol. 4, pp. 2658-2670, 12th International Conference on Computer Methods and Advances in Geomechanics 2008, Goa, 1/10/08.
Rosyidi SA, Taha MR, Chik Z, Ismail A. Determination of attenuation and geometric damping on clayey sand residual soil in irregular profile using surface wave method. In 12th International Conference on Computer Methods and Advances in Geomechanics 2008. Vol. 4. 2008. p. 2658-2670
Rosyidi, S. A. ; Taha, Mohd. Raihan ; Chik, Z. ; Ismail, Amiruddin. / Determination of attenuation and geometric damping on clayey sand residual soil in irregular profile using surface wave method. 12th International Conference on Computer Methods and Advances in Geomechanics 2008. Vol. 4 2008. pp. 2658-2670
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