Geotechnical characterization of the upper Pleistocene–Holocene alluvial deposits of Roma (Italy) by means of multivariate geostatistics: Cross-validation results. (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Geotechnical characterization of the upper Pleistocene–Holocene alluvial deposits of Roma (Italy) by means of multivariate geostatistics: Cross-validation results. (Articolo in rivista) (literal)

Anno

• 2008-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/j.enggeo.2008.06.007 (literal)

Alternative label

• RASPA G., MOSCATELLI M., STIGLIANO F., PATERA A, MARCONI F., FOLLE D., VALLONE R., MANCINI M., CAVINATO G.P., MILLI S., LEITE COSTA J. F.C. (2008)
  Geotechnical characterization of the upper Pleistocene–Holocene alluvial deposits of Roma (Italy) by means of multivariate geostatistics: Cross-validation results.
  in Engineering geology
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• RASPA G., MOSCATELLI M., STIGLIANO F., PATERA A, MARCONI F., FOLLE D., VALLONE R., MANCINI M., CAVINATO G.P., MILLI S., LEITE COSTA J. F.C. (literal)

Pagina inizio

• 251 (literal)

Pagina fine

• 268 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 101 (literal)

Rivista

• Engineering geology (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 3-4 (literal)

Note

• Google Scholar (literal)
• Scopu (literal)
• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• RASPA G.: Dipartimento di Ingegneria Chimica, dei Materiali, delle Materie Prime e Metallurgia, Università di Roma \"La Sapienza\"; MOSCATELLI M., STIGLIANO F., PATERA A, MARCONI F., VALLONE R., MANCINI M., CAVINATO G.P.: CNR-IGAG, Istituto di Geologia Ambientale e Geoingegneria; MILLI S.: Dipartimento di Scienze della Terra, Università di Roma \"La Sapienza\"; FOLLE D., LEITE COSTA J.F.C.: Departamento de Engenharia de Minas, Universidade Federal do Rio Grande do Sul (literal)

Titolo

• Geotechnical characterization of the upper Pleistocene–Holocene alluvial deposits of Roma (Italy) by means of multivariate geostatistics: Cross-validation results. (literal)

Abstract

• We are presenting an attempt to evaluate the spatial variability of geotechnical parameters in the upper Pleistocene°VHolocene alluvial deposits of Roma (Italy) by means of multivariate geostatistics. The upper Pleistocene°VHolocene alluvial deposits of Roma are sensitive to high levels of geohazard. They occupy a sizable and significant part of the city, being the foundation for many monuments, historical neighborhoods, and archaeological areas, and the main host of the present and future subway lines. We have stored information from more than 2000 geotechnical boreholes crossing the alluvial deposits into a relational database. For the present study, only the boreholes with lithologic/textural interpretation and geotechnical information were selected. The set includes 283 boreholes and 719 samples, which have a set of geotechnical information comprising physical properties and mechanical parameters. Techniques of multivariate statistics and geostatistics were combined and compared to evaluate the estimation methods of the mechanical parameters, with special reference to the drained friction angle from direct shear test (£p°¨). Principal Component Analysis was applied to the dataset to highlight the relationships between the geotechnical parameters. Through cross-validation analysis, multiple linear regression, kriging, and cokriging were tested as estimators of £p°¨. Cross-validation demonstrates that the cokriging with granulometries as auxiliary variables is the most suitable method to estimate phi. In addition to proving that cokriging is a good estimator of phi, cross-validation demonstrates that input data are coherent and this allows us to use them for estimation of geotechnical parameters, although they come from different laboratories and different vintages. Nevertheless, to get the same good results of cross-validation in estimation, it is necessary for granulometries to be available at grid points. Since this information being not available at all grid points, it is expected that, in the future, textural information can be derived in an indirect way, i.e., from lithologic/textural spatial reconstructions. (literal)

Prodotto di

• Geologia del Quaternario, valutazioni di pericolosità geologica, sottosuolo di aree urbane. (TA.P05.025.003) (Modulo)
• Institute of environmental geology and geoengineering (IGAG) (Istituto)

Autore CNR

• FABRIZIO MARCONI (Unità di personale interno)
• MASSIMILIANO MOSCATELLI (Unità di personale interno)
• SALVATORE MILLI (Persona)
• GIAN PAOLO CAVINATO (Persona)
• FRANCESCO STIGLIANO (Persona)
• ROBERTO VALLONE (Persona)
• MARCO MANCINI (Persona)
• ANTONIO PATERA (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Geotechnical characterization of the upper Pleistocene–Holocene alluvial deposits of Roma (Italy) by means of multivariate geostatistics: Cross-validation results." (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute of environmental geology and geoengineering (IGAG) (Istituto)
• Geologia del Quaternario, valutazioni di pericolosità geologica, sottosuolo di aree urbane. (TA.P05.025.003) (Modulo)

Autore CNR di

• GIAN PAOLO CAVINATO (Persona)
• FRANCESCO STIGLIANO (Persona)
• MASSIMILIANO MOSCATELLI (Unità di personale interno)
• SALVATORE MILLI (Persona)
• ANTONIO PATERA (Unità di personale interno)
• MARCO MANCINI (Persona)
• FABRIZIO MARCONI (Unità di personale interno)
• ROBERTO VALLONE (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Engineering geology (Rivista)

Insieme di parole chiave di

• Keywords of "Geotechnical characterization of the upper Pleistocene–Holocene alluvial deposits of Roma (Italy) by means of multivariate geostatistics: Cross-validation results." (Insieme di parole chiave)