Title

2-D Shear-Wave Velocity Profile along Test Segment of Interstate 1-70, St. Louis, Missouri

Abstract

Multi-channel surface-wave (MASW) seismic control was acquired along a 6400 ft segment of interstate I-70 in downtown St. Louis, Misouri. The acquired MASW data set (consisting of Rayleigh waves) was transformed into a 2-D MASW shear-wave velocity profile with a trace-spacing of 40 ft. Shear-wave velocity control extends from the surface to depths on the order of 100 ft. The interpreted depth to acoustic bedrock along the 2-D MASW profile varies between 20 ft and 44 ft. The interpreted 2-D MASW shear-wave velocity profile was compared to available borehole, cone penetrometer and seismic cone penetrometer control provided by the Missouri Department of Transportation. The 2-D MASW profile correlates very well with availablegeotechnical control, supporting the conclusion that the multi-channel surface-wave seismictechnique can be used to generate reliable and interpretable 2-D shear-wave velocity profiles of the shallow subsurface.

Meeting Name

Geo-Frontiers (2005: Jan. 24-26, Austin, TX)

Department(s)

Geosciences and Geological and Petroleum Engineering

Second Department

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Missouri Department Of Transportation (MoDOT); Multi-channel Surface-wave (MASW); Penetrometer; Seismic Cone Penetrometer (SCPT); Boreholes; Correlation Methods; Dispersion (Waves); Iterative Methods; Rayleigh Fading; Seismic Prospecting; Surface Waves

Geographic Coverage

St. Louis, Missouri

International Standard Serial Number (ISSN)

8950563

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2005 American Society of Civil Engineers (ASCE), All rights reserved.

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