期刊
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
卷 82, 期 -, 页码 241-254出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.soildyn.2015.12.009
关键词
Surface-wave methods; V-s,V-30; Site characterization; MASW; Rayleigh waves; Geophysical methods; Cross-Hole; Down-Hole; P-S suspension logging; SDMT
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
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1261775] Funding Source: National Science Foundation
The InterPACIFIC project was aimed at assessing the reliability, resolution, and variability of geophysical methods in estimating the shear-wave velocity profile for seismic ground response analyses. Three different subsoil conditions, which can be broadly defined as soft-soil, stiff-soil, and hard-rock, were investigated. At each site, several participants performed and interpreted invasive measurements of shear wave velocity (Vs) and compression wave velocity (Vp) in the same boreholes. Additionally, participants in the project analysed a common surface-wave dataset using their preferred strategies for processing and inversion to obtain Vs profiles. The most significant difference between the invasive borehole methods and non-invasive surface wave methods is related to resolution of thin layers and abrupt contrasts, which is inherently better for invasive methods. However, similar variability is observed in the estimated invasive and non-invasive Vs profiles, underscoring the need to account for such uncertainty in site response studies. V-s,V-30 estimates are comparable between invasive and non-invasive methods, confirming that the higher resolution provided by invasive methods is quite irrelevant for computing this parameter. (C) 2015 Elsevier Ltd. All rights reserved.
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