1887
Volume 21, Issue 1-2
  • ISSN: 0812-3985
  • E-ISSN: 1834-7533

Abstract

S-wave velocities in soils to depths of 60 m typically range from 50 to 1200 m/s. These velocities may be correlated with the results of other engineering tests, such as the standard penetration test (SPT), in order to provide an independent assessment of the dynamic elastic properties of shallow earth materials. Reliable S-wave velocities in soils may be obtained in cased boreholes by vertical seismic shear-wave profiling (VSSP), which employs a surface linear traction SH-wave seismic source, downhole multi-component geophones pneumatically packed against the hole wall, and special field procedures involving reversal of the source polarization, which are designed to enhance SH waves and assist their identification.

Liquefaction assessment of alluvial materials under earthquake loading may be made independently using both SPT and VSSP. The problems of interpretation when both direct S waves travelling through the alluvial material and refracted S waves arising from the steeply dipping bedrock interface arrive at similar times can be resolved using refraction interpretation techniques.

The S-wave velocities obtained from a dam site in the Solomon Islands suggested that the sandy gravels at the site were mainly in a medium dense state, not in a dense state as was expected from the SPT. The VSSP tests indicated that these materials may be subject to liquefaction under typical earthquake loadings likely to occur in the region.

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1990-03-01
2026-01-20

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References

  1. ASTM (1979). Designation: D3441, American Society for Testing and Materials, standard method for deep quasi-static cone and friction-cone penetration tests of soil.
  2. Campanella, R. G., and Robertson, P. K. (1981). Applied cone research symposium on cone penetration testing and experience.’ Geotechnical Eng. Div., American Society of Civil Engineers, 343-362.
  3. Douglas, D. J. (1983). The standard penetration test,’ in ln-situ testing for geotechnical investigations, M. C. Ervin (ed.). A. A. Balkema, 21-33.
  4. Edelmann, H. A. K. (1985). ‘Shear wave energy sources,’ in Seismic shear waves, part B: applications. G. Dohr (ed.). Geophysical Press, 134-174.
  5. Gibbs, H. J., and Holz, W. (1957). ‘Research on determining the density of sands by spoon penetration testing.’ Proc. 4th Int. Conf.on Soil Mech. and Foundation. Eng., 1, 35-39.
  6. Hardage, B. A. (1985). ‘Vertical seismic profiling.’ 2nd. Edn. Geophysical Press.
  7. Imai, T., and Yoshimura, M. (1975). ‘The relation of mechanical properties of soils to P and S-wave velocities for soil ground in Japan.’ OYO Corp. Urawa Res. Inst. paper RP-447.
  8. Imai, T, Fumoto, H., and Yokota, K. (1976). ‘P and S-wave velocities in subsurface layers of ground in Japan.’ OYO Corp., Urawa Res. Inst., RP-460. Imai, T. (1977). ‘P and S-wave velocities of the ground in Japan.’ Proc.9th Int. Conf. on Soil Mech. and Foundation Eng. Tokyo 2, 257-260.
  9. Lew, M., and Campbell, K. W. (1985). ‘Relationship between shear wave velocity and depth of overburden.’ in Measurement and use of shear wave velocity, R. D. Woods (ed.), American Society of Civil Engineers, 64-76.
  10. Mooney, H. M. (1974). ‘Seismic shear waves in engineering.’ American Society of Civil engineers Geotech. Aug., 905-923.
  11. Nixon, I. K. (1982). ‘Standard penetration test – state of the art report.’ Proc. of the European Symposium on Penetration Testing Conf.Amsterdam, Balkema.
  12. Onda, I., and Komaki, S. (1968). ‘Waves generated from a linear horizontal traction with finite source length on the surface of a semi-infinite elastic medium, with special remarks on shear wave generator.’ Bull. Earthquake Res. Inst. 46, 1-23.
  13. Robertson, P. K., Campanella, R. G., Gillespie, D., and Rice, A. (1985). ‘Seismic CPT to measure in-situ shear wave velocity.’ in Measurement and use of shear wave velocity for evaluating dynamic soil properties, R. D. Woods (ed.), American Society of Civil Engineers, 35-49.
  14. Seed, H. B., Lee, K. L., Idriss, I. M., and Makdist, F. (1973). ‘Analysis of the slides in the San Fernando Dams during the earthquake of Feb. 9.’ Earthquake Eng. Res. Center Rept. EERC-73-2.
  15. Shima, E., and Ohta, Y. (1967). ‘Experimental study on generation and propagation of S-waves: 1 Designing of SH-wave generator and its field tests.’ Bull. Earthquake Res. Inst. 45, 19-31.
  16. Stokoe, K. H., and Nazarian, S. (1985). ‘Use of Rayleigh waves in liquefaction studies,’ in Measurement and use of shear wave velocity, R. D. Woods (ed.). American Society of Civil Engineers, 1-17.
  17. Sutcliffe, G., and Waterton, C. (1983). ‘Quasi-static penetration testing.’ in In-situ testing for geotechnical investigations, M. C. Ervin (ed.), Balkema, 33-48.
  18. White, E. J. (1965). ‘Seismic waves, radiation, transmission and attenuation. McGraw-Hill.
  19. Whiteley, R. J. (1983). ‘Recent developments in the application of geophysics to geotechnical investigations.’ in In-situ testing for geotechnical investigations, M. C. Ervin (ed.). Balkema, 37-110.
  20. Wilson, R. C, Warwick, R. E., and Bennett, M. J. (1978). ‘Seismic velocities in the San Francisco Bay shore sediments.’ Proc. Geotech. Specialty Conf. on Earthquake Engineering and Soil Dynamics. American Society of Civil Engineers.
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  • Article Type: Research Article
Keyword(s): down-hole geophysics; S waves; soils; Solomon Islands; standard penetration test; vertical seismic profiling

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