期刊
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
卷 82, 期 -, 页码 222-240出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.soildyn.2015.12.010
关键词
Surface-wave methods; Dispersion curve; Inversion; V-s,V-30; Site characterization; MASW; Microtremors; Rayleigh waves; Geophysical methods
资金
- Research and Development Program SIGMA - EdF (France)
- Research and Development Program SIGMA - Areva (France)
- Research and Development Program SIGMA - CEA (France)
- Research and Development Program SIGMA - ENEL (Italy)
- CASHIMA project - CEA (France)
- CASHIMA project - ILL (France)
- CASHIMA project - ITER (France)
- Politecnico di Torino
- Italian Civil Protection Agency
- University of Texas
- U.S. National Science Foundation (NSF) Grant [CMMI-1261775]
- ReLUIS 2 project
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1261775] Funding Source: National Science Foundation
The main scope of the InterPACIFIC (Intercomparison of methods for site parameter and velocity profile characterization) project is to assess the reliability of in-hole and surface-wave methods, used for estimating shear wave velocity. Three test-sites with different subsurface conditions were chosen: a soft soil, a stiff soil and a rock outcrop. This paper reports the surface-wave methods results. Specifically 14 teams of expert users analysed the same experimental surface-wave datasets, consisting of both passive and active data. Each team adopted their own strategy to retrieve the dispersion curve and the shear-wave velocity profile at each site. Despite different approaches, the dispersion curves are quite in agreement with each other. Conversely, the shear-wave velocity profiles show a certain variability that increases in correspondence of major stratigraphic interfaces. This larger variability is mainly due to non-uniqueness of the solution and lateral variability. As expected, the observed variability in V-s,V-30 estimatesis small, as solution non-uniqueness plays a limited role. (C) 2015 Elsevier Ltd. All rights reserved.
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