Title

Comparison of Rayleigh Wave Dispersion Relations from Three Surface Wave Measurements in a Complex-Layered System

Document Type

Conference Proceeding

Abstract

Three widely-available surface wave measurement techniques, including two active-source methods, the Spectral Analysis of Surface Waves (SASW) method and the Multi-channel Analysis of Surface Waves (MASW) method, and one passive-source method, the Refraction Microtremor (ReMi) method, were applied at a complex-layered site. Dispersion relations were compared to one another. Outcomes from the MASW measurement reveal a fundamental and first-higher mode. All three methods agree closely in the frequency range over which only one mode is present. The dispersion curve from the SASW method, which represents a superposition of modes, shifts gradually from the fundamental mode to the first higher mode as frequency increases. The ReMi outcome tracks only the fundamental mode over its range of analysis.

Disciplines

Civil and Environmental Engineering | Environmental Sciences | Geology | Structural Engineering

Permissions

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