Theoretical investigation of the spectral-analysis-of-surface-waves (SASW) technique for application offshore PDF Download

Author: Mahmoud Sedighi Manesh
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 372

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Author: Brent Lyndon Rosenblad
Publisher:
ISBN:
Category : Seismic waves
Languages : en
Pages : 596

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Author: Sung-Ho Joh
Publisher:
ISBN:
Category : Ocean waves
Languages : en
Pages : 240

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Author: Sebastiano Foti
Publisher: CRC Press
ISBN: 1482266822
Category : Science
Languages : en
Pages : 482

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Develop a Greater Understanding of How and Why Surface Wave Testing WorksUsing examples and case studies directly drawn from the authors' experience, Surface Wave Methods for Near-Surface Site Characterization addresses both the experimental and theoretical aspects of surface wave propagation in both forward and inverse modeling. This book accents

Author: Barbara Aileen Luke
Publisher:
ISBN:
Category : Hydraulic models
Languages : en
Pages : 424

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Author: Robert C. Gauer
Publisher:
ISBN:
Category : Marine sediments
Languages : en
Pages : 450

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Author: Byungsik Lee
Publisher:
ISBN:
Category : Surface waves (Oceanography)
Languages : en
Pages : 333

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Author: Jeffrey D. Bertel
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages :

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The Spectral-Analysis-of-Surface-Waves (SASW) method is an accepted means of measuring shear wave velocity (VS). In some settings, SASW measurements have produced results that were inconsistent with results from other methods of measurement. The effectiveness of the SASW methodology at complex geotechnical sites was investigated to identify site conditions where the SASW approach may produce erroneous results. Analytical simulations of surface wave measurements were performed. A traditional SASW methodology (global analysis), and a more rigorous approach (array analysis) were used to generate experimental dispersion curves. The effectiveness of these approaches was evaluated by comparing the experimental results to the true dispersion curve. The global analysis yielded dispersion curves that tend to underestimate surface wave velocities at long wavelengths. The array approach worked well for both simple, gradually increasing VS profiles as well as for some complex profiles with large VS contrasts. In some cases both the global and array analysis produce an experimental dispersion curve that is not consistent with the theoretical dispersion curve, especially for soft-over-stiff profiles, a common profile encountered in the field. These results have implications for earthquake site response analysis.

Author: JM. Roesset
Publisher:
ISBN:
Category : Dynamic testing
Languages : en
Pages : 19

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The Spectral-Analysis-of-Surface-Waves (SASW) technique is a nonintrusive, nondestructive technique that employs surface waves of the Rayleigh type to determine the layer thicknesses and stiffnesses of subsurface profiles. The SASW technique has been developed and successfully used on land. This paper extends the method to sites overlaid by water. A theoretical model has been developed to study the "surface" waves that propagate along a soil-water interface using a half-space overlaid by water as an approximation. The waves at the soil-water interface are termed "Scholte" waves. Results from the theoretical model show that in "deep" water, defined as a water depth exceeding the wave length of the Scholte wave, the effect of water is to reduce the surface wave velocity slightly from the velocity for a similar surface (Rayleigh) wave with air over the surface. Results of experimental studies are also described and shown to compare well with theoretical predictions.

Author: Naser Abdul-Rahman Al-Shayea
Publisher:
ISBN:
Category : Ground penetrating radar
Languages : en
Pages : 602

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