Comparing shear-wave velocity profiles inverted from multichannel surface wave with borehole measurements
Soil Dynamics and Earthquake Engineering
By: J. Xia, R. D. Miller, C.B. Park, J. A. Hunter, J. B. Harris, and J. Ivanov
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Abstract
Recent field tests illustrate the accuracy and consistency of calculating near-surface shear (S)-wave velocities using multichannel analysis of surface waves (MASW). S-wave velocity profiles (S-wave velocity vs. depth) derived from MASW compared favorably to direct borehole measurements at sites in Kansas, British Columbia, and Wyoming. Effects of changing the total number of recording channels, sampling interval, source offset, and receiver spacing on the inverted S-wave velocity were studied at a test site in Lawrence, Kansas. On the average, the difference between MASW calculated Vs and borehole measured Vs in eight wells along the Fraser River in Vancouver, Canada was less than 15%. One of the eight wells was a blind test well with the calculated overall difference between MASW and borehole measurements less than 9%. No systematic differences were observed in derived Vs values from any of the eight test sites. Surface wave analysis performed on surface data from Wyoming provided S-wave velocities in near-surface materials. Velocity profiles from MASW were confirmed by measurements based on suspension log analysis. ?? 2002 Elsevier Science Ltd. All rights reserved.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Comparing shear-wave velocity profiles inverted from multichannel surface wave with borehole measurements |
| Series title | Soil Dynamics and Earthquake Engineering |
| DOI | 10.1016/S0267-7261(02)00008-8 |
| Volume | 22 |
| Issue | 3 |
| Year Published | 2002 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Soil Dynamics and Earthquake Engineering |
| First page | 181 |
| Last page | 190 |
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