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Dynamic testing of marine sediments at the Pelješac bridge site (CROSBI ID 556682)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Ivšić, Tomislav ; Vrkljan, Ivan ; Zlatović, Sonja ; Mavar, Ramon Dynamic testing of marine sediments at the Pelješac bridge site // Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering, The Academia & Practice of Geotechnical Engineering / Hamza, M., Shahien, M., El-Mossallamy, Yasser. (ur.). Alexandria: IOS Press, 2009. str. 344-347

Podaci o odgovornosti

Ivšić, Tomislav ; Vrkljan, Ivan ; Zlatović, Sonja ; Mavar, Ramon

engleski

Dynamic testing of marine sediments at the Pelješac bridge site

The complex geotechnical investigations were performed at the location of the long bridge at the south Adriatic. The sea depth at the location is 27 to 28m. Marine sediments, deposited in horizontal layers, are very soft to soft high plasticity clay with silt, from the sea bottom to the depth of 60m where overconsolidated clay with fragments of lime and shells was found. The depth of base lime rock varies along the bridge from the surface at the coasts to 100m under the sea bottom. Seismicity of the location is significant. Comprehensive dynamic testing was performed in order to establish the representative seismic soil profile. Vane shear, SCPT and CPTU testing (seismic cone penetrometer and piezocone) were performed to the depth of 25m, as well as down hole testing to the depth of 80m. Numerous classification tests, compressibility and strength tests were performed in the laboratory. Undisturbed specimens from the borehole for down hole measurements were tested in the resonant column apparatus, double specimen direct simple shear device (DSDSS), and in the triaxial apparatus with bender elements. Effects of mean effective stress and excitation characteristics are investigated in all tests. The compilation of basic investigation results is presented. Values of shear modulus obtained from all the laboratory tests and from wave velocity measurements are compared taking into account shear deformation which varies from 0, 00003% in resonant column tests to 3%, showing very good agreement.

geotechnical investigation; dynamic soil testing; marine sediments

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Podaci o prilogu

344-347.

2009.

objavljeno

Podaci o matičnoj publikaciji

Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering, The Academia & Practice of Geotechnical Engineering

Hamza, M., Shahien, M., El-Mossallamy, Yasser.

Alexandria: IOS Press

978-1-60750-031-5

Podaci o skupu

17th International Conference on Soil Mechanics and Geotechnical Engineering, The Academia & Practice of Geotechnical Engineering

predavanje

05.10.2009-09.10.2009

Aleksandrija, Egipat

Povezanost rada

Građevinarstvo