Automated Surface Wave Method: Field Testing
Publication: Journal of Geotechnical Engineering
Volume 119, Issue 7
Abstract
The spectral analysis of surface waves (SASW) method is a nondestructive in situ seismic testing method for determining shear wave velocity profiles of soil sites and stiffness profiles of pavement systems. The key steps involved are construction of an experimental dispersion curve from data collected in situ, and inversion of the dispersion curve to determine the stiffness profile. In this paper, an automated method for the construction of dispersion curves is discussed. Weighted least‐squares best‐fit solution is used to estimate the phase at each frequency with coherence as weighing function. By knowing the distance between the receivers and the phase at each frequency, phase velocity and wavelength associated with that frequency are calculated. These raw data are then combined using the least‐absolute‐valuebest‐fit criterion to construct a dispersion curve. The inversion process for determination of stiffness profile from the dispersion curve is described in a companion paper.
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References
1.
Barker, T. G., and Stevens, J. L. (1991). “Array processing of Rayleigh waves for shear structure.” Proc., 2nd Int. Conf. on Recent Advances in Geotechnical Earthquake Engrg. and Soil Dynamics, Univ. of Missouri‐Rolla, Rolla, Mo., 1393–1397.
2.
Desai, R. M. (1991). “An automated method for construction of surface wave dispersion curve,” MS thesis, The University of Texas at El Paso, El Paso, Tex.
3.
Drenvich, V. P., Kim, S. I., Alexander, D. R., and Kohn, S. (1985). “Spectral analysis of surface waves in pavement systems with random noise excitation.” Expanded abstracts; 55th Annual Meeting, Soc. of Exploration Geophysicists, Tulsa, Ok.
4.
Gucunski, N., and Woods, R. D. (1991). “Use of Rayleigh modes in interpretation of SASW test.” Proc., 2nd Int. Conf. on Recent Advances in Geotechnical Earthquake Engrg. and Soil Dynamics, 1399–1408.
5.
Heisey, J. S. (1982). “Determination of in situ shear wave velocities from spectral analysis of surface waves,” MS thesis, The University of Texas at Austin, Austin, Tex.
6.
Hiltenun, D. R. (1988). “Experimental evaluation of variables affecting the testing of pavements by the spectral‐analysis‐of‐surface‐waves method,” PhD thesis, The University of Michigan, Ann Arbor, Mich.
7.
Hossain, M. M., and Drenvich, V. P. (1989). “Numerical and optimization techniques applied to surface waves for backcalculation of layer moduli.” Nondestructive pavements and backcalculation of layer moduli; ASTM STP 1026, A. J. Bush III and G. Y. Baladi, eds., ASTM, Philadelphia, 649–669.
8.
Lawson, C. D., and Hanson, R. J. (1974). Solving least squares problems. Prentice‐Hall, Englewood Cliffs, N.J.
9.
Menke, W. (1984). Geophysical data analysis: discrete inverse theory. Academic Press, Orlando, Fla.
10.
Nazarian, S. (1984). “In situ determination of elastic moduli of soil deposits and pavement systems by spectral‐analysis‐of‐surface‐waves method,” PhD thesis, The University of Texas at Austin, Austin, Tex.
11.
Nazarian, S., and Stokoe, K. H. II (1986). “In situ determination of elastic moduli of pavement systems by spectral‐analysis‐of‐surface‐waves method (practical aspects),” Research rep. 1123‐1, Ctr. for Transp. Res., The University of Texas at Austin, Austin, Tex.
12.
Nazarian, S., and Stokoe, K. H. II (1987). “In situ determination of elastic moduli of pavements systems by spectral‐analysis‐of‐surface‐waves method (theoretical aspects).” Research rep. 437‐2, Ctr. for Transp. Res., The University of Texas at Austin, Austin, Tex.
13.
Rix, G. R. (1988). “Experimental study of factors affecting the spectral‐analysis‐of‐surface‐waves method,” PhD thesis, The University of Texas at Austin, Austin, Tex.
14.
Sanchez‐Salinero, I., Roesset, J. M., Shao, K. Y., Stokoe, K. H. II, and Rix, G. J. (1987). “Analytical evaluation of variables affecting surface wave testing of avements.” Transp. Res. Record 1136, Washington, D.C., 86–95.
15.
Satoh, T., Poran, C. J., Yamagata, K., and Rodriguez, J. A. (1991). “Soil profiling by spectral analysis of surface waves.” Proc., 2nd Int. Conf. on Recent Advances in Geotechnical Earthquake Engrg. and Soil Dynamics, 1429–1434.
16.
Sheu, J. C., Stokoe, K. H. II, and Roesset, J. M. (1987). “Effect of reflected waves on SASW testing of pavements.” Transp. Res. Record 1196, Washington, D.C., 51–61.
Information & Authors
Information
Published In
Journal of Geotechnical Engineering
Volume 119 • Issue 7 • July 1993
Pages: 1094 - 1111
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Jan 7, 1992
Published online: Jul 1, 1993
Published in print: Jul 1993
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