Experimental soil dynamic force: An improvement of Standard Penetration Test (SPT) interpretation

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dc.contributor.authorLukiantchuki, J. A.
dc.contributor.authorBernardes, G. P.
dc.contributor.authorEsquivel, E. R.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2022-04-29T08:44:30Z
dc.date.available2022-04-29T08:44:30Z
dc.date.issued2013-01-01
dc.description.abstractThe Standard Penetration Test (SPT) is widely used for geotechnical subsurface investigation. It is intended to provide soil properties and foundation design parameters. Schnaid et al. (2009) proposed a rational method to assess the dynamic force (F d), corresponding to the dynamic soil reaction to the sampler penetration, based on the amount of energy delivered to the sampler. This paper presents the results of SPT tests performed with two instrumented subassemblies, one placed at top and the other one at the bottom of the string of rods. This instrumentation allowed the assessment of the amount of energy transmitted to the string of rods, at sections just below the anvil and just above the sampler. Also, dynamic soil reaction forces were estimated through measurements of normal forces at a section just above the sampler. These reaction forces were then compared to the dynamic reaction forces estimated using the equation proposed by Schnaid et al. (2009). Results showed that experimental dynamic reaction values are lower than theoretical ones. However, it is possible to correct theoretical values using a multiplying factor, which can be evaluated from the amount of energy at top and bottom of the string of rods.en
dc.description.affiliationDepartment of Geotechnical Engineering University of Sao Paulo, Sao Carlos
dc.description.affiliationDepartment of Civil Engineering State University of Sao Paulo, Guaratingueta
dc.format.extent865-872
dc.identifier.citationGeotechnical and Geophysical Site Characterization 4 - Proceedings of the 4th International Conference on Site Characterization 4, ISC-4, v. 1, p. 865-872.
dc.identifier.scopus2-s2.0-84866933800
dc.identifier.urihttp://hdl.handle.net/11449/231291
dc.language.isoeng
dc.relation.ispartofGeotechnical and Geophysical Site Characterization 4 - Proceedings of the 4th International Conference on Site Characterization 4, ISC-4
dc.sourceScopus
dc.subjectEnergy
dc.subjectSoil dynamic reaction force
dc.subjectSPT
dc.subjectStandard penetration test
dc.titleExperimental soil dynamic force: An improvement of Standard Penetration Test (SPT) interpretationen
dc.typeTrabalho apresentado em evento

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Artigos - Engenharia Civil - FEG