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Garofalo F., Foti S., Hollender F., Bard P. Y., Cornou Cécile, Cox B. R., Dechamp A., Ohrnberger M., Perron V., Sicilia D., Teague D., Vergniault C. (2016). InterPACIFIC project : comparison of invasive and non-invasive methods for seismic site characterization. Part II : Inter-comparison between surface-wave and borehole methods. Soil Dynamics and Earthquake Engineering, 82, p. 241-254. ISSN 0267-7261.

Titre du document
InterPACIFIC project : comparison of invasive and non-invasive methods for seismic site characterization. Part II : Inter-comparison between surface-wave and borehole methods
Année de publication
2016
Type de document
Article référencé dans le Web of Science WOS:000371361300020
Auteurs
Garofalo F., Foti S., Hollender F., Bard P. Y., Cornou Cécile, Cox B. R., Dechamp A., Ohrnberger M., Perron V., Sicilia D., Teague D., Vergniault C.
Source
Soil Dynamics and Earthquake Engineering, 2016, 82, p. 241-254 ISSN 0267-7261
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.
Plan de classement
Géophysique interne [066]
Description Géographique
FRANCE ; ITALIE
Localisation
Fonds IRD [F B010066269]
Identifiant IRD
fdi:010066269
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