Abstract
The compilation and maintenance of experimental databases are of crucial importance in all research fields, allowing for researchers to develop and test new methodologies. In this work, we present a flat-file database of experimental dispersion curves and shear wave velocity profiles, mainly from active surface wave testing, but including also data from passive surface wave testing and invasive methods. The Polito Surface Wave flat-file Database (PSWD) is a gathering of experimental measurements collected within the past 25 years at different Italian sites. Discussion on the database content is reported in this paper to evaluate some statistical properties of surface wave test results. Comparisons with other methods for shear wave velocity measurements are also considered. The main novelty of this work is the homogeneity of the PSWD in terms of processing and interpretation methods. A common processing strategy and a new inversion approach were applied to all the data in the PSWD to guarantee consistency. The PSWD can be useful for further correlation studies and is made available as a reference benchmark for the validation and verification of novel interpretation procedures by other researchers.
Highlights
The compilation and maintenance of databases, in conjunction with big-data management methodologies, allow for relevant advances in research
This paper presents a flat-file database compiled for the assessment of statistical properties of surface wave tests at different sites: the Polito Surface Wave flat-file Database (PSWD)
The Polito Surface Wave flat-file Database (PSWD) includes several sites that have been investigated in Italy during the past 25 years by the Politecnico di Torino
Summary
The compilation and maintenance of databases, in conjunction with big-data management methodologies, allow for relevant advances in research. The primary attention of the Polito Surface Wave flat-file Database (PSWD) is devoted to surface wave tests (mostly active), the database structure is flexible and allows for the storage of further information, including results of additional geophysical tests (for inter-method comparisons) and/or geotechnical tests (for correlation studies). This inversion methodology led, for each site, to a homogeneous set of equivalent solutions This set was determined after the application of a one-tail statistical test (Socco and Boiero 2008) on the inversion results, propagating the experimental uncertainties into the VS profiles. For each site the data shared in the electronic supplement include the EDC (with experimental uncertainties, when available), the best fit (i.e. lowest misfit) V S profile from surface wave tests and the VS profile from invasive tests (when available). Hereafter further details on the experimental information, processing approach and inversion procedure are presented
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