Strength of sands in wedge shear, triaxial shear, and shear box tests

Mirata, Tuerker
Erzin, Yusuf
Limited tests had indicated peak drained values of angle of internal friction (of gravelly sands measured in the cylindrical wedge shear test (cylwest) to be relatively closer to the (expected from plane strain tests than from triaxial tests. Such a difference was not obtained between the results of the prismatic wedge shear test (priswest) and the triaxial test on gravels and crushed rock. In this study, six sands with <3.35 mm particles were tested. It was seen that the main reason for the difference between the phi values from cylwests and priswests was the difference in the angle delta between the shear plane and the bedding planes. Cylwests, in which delta was nearly the same as in triaxial tests, gave results close to those expected from plane strain tests, and almost identical results to those obtained from shear box tests on specimens so prepared as to make delta the same.


Effect on measured shear strength of wedge shear box spacing
Mirata, T; Filiz, E (ASTM International, 2006-01-01)
The prismatic wedge shear test (priswest) is a relatively new test that enables the shear strength of gravels and crushed rock to be measured rapidly, using a portable frame and other simple devices. In testing which of the different methods of analysis for the wedge shear test is the more reliable for gravels, tests had previously been performed on 5-20 mm gravel with different spacing between the two halves of the priswest box; the method giving the more consistent results was proposed as the more reliabl...
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ÇABALAR, ALİ FIRAT; Dulundu, Kemal; Tuncay, Kağan (Elsevier BV, 2013-04-01)
This paper presents the result of an extensive series of experimental investigation carried out in triaxial and cyclic direct shear tests on sands having various properties, which were obtained from different locations in Turkey and in Northern Cyprus. In order to investigate the link between strength and physical properties (i.e., shape) of the sand particles, three series of triaxial tests (Consolidated-Drained, CD; Consolidated-Undrained, CU; and Unconsolidated-Undrained, UU) for each were performed unde...
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This study is aimed at comparing the seismic performance of steel chevron braced frames (CBFs) with and without fluid viscous dampers (FVDs) as a function of the characteristics of the near-fault (NF) ground motion and FVD parameters. For this purpose, comparative nonlinear time history (NLTH) analyses of single and multiple storey CBFs with and without FVDs are conducted using NF ground motions with various velocity pulse periods scaled to have small, moderate and large intensities. Additionally, NLTH anal...
Citation Formats
T. Mirata and Y. Erzin, “Strength of sands in wedge shear, triaxial shear, and shear box tests,” GEOTECHNICAL TESTING JOURNAL, pp. 152–163, 2007, Accessed: 00, 2020. [Online]. Available: