Multichannel analysis of seismic waves for layer moduli evaluation of pavements

N. Ryden, P. Ulriksen, U. Ekdahl, C. B. Park, R. D. Miller

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKapitel samlingsverkForskningPeer review

Sammanfattning

Results from the application of a new seismic technique for non-destructive testing of pavement layer moduli are presented. The method is based on the multichannel analysis of surface waves (MASW) method and multichannel simulation with one receiver (MSOR). The MSOR method uses one accelerometer (receiver), a light hammer (source), and a single-channel recording device to generate a simulated multichannel record in a fast and simple manner. In the case study presented, the dispersion curve of surface waves shows different branches associated with the layers of different stiffness. From an objective observation of branches, seismic velocities, and resonant frequencies we evaluate the total number of layers with different stiffness properties, the dynamic E-modulus, Poisson's ratio, and thickness of the top asphalt layers. We propose using this information in the back-calculation of Falling Weight Deflectometer (FWD) data.

Originalspråkengelska
Titel på värdpublikationBearing Capacity Of Roads Railways and Airfields
FörlagCRC Press
Sidor705-714
Antal sidor10
ISBN (elektroniskt)9781000108101
ISBN (tryckt)9789058093967
DOI
StatusPublished - 2022 jan. 27

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