Characterization of peak shear strength of rough rock joints using limited displacement multi-stage direct shear (LDMDS) tests [PDF]
Current standard direct shear test methods for rock joints do not account for damage to the specimens' asperity profiles; tests require shearing of a single specimen to large displacements under successive normal stresses (the multistage test), or the ...
MacLaughlin Mary+4 more
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An Apparatus for In Situ Direct Shear Tests on Snow [PDF]
The article presents a prototype of a new device for measuring the shear strength of snow specimens in situ. The resistance to sliding of a snow slab on a mountain slope is a key parameter in snow mechanics. The proposed apparatus acts as a sampler, to obtain a nearly undisturbed specimen, and as a shear box, similar to those used in the laboratory ...
BARBERO, Monica+3 more
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Direct shear testing of flowability of food powders [PDF]
The flow properties were determined for two groups of food powders used in industry: cereal powders and non-starch powders. Materials were different in mean sizes of particles d* ranging from 0.033 mm for potato flour to 4.449 mm for oatmeal. Experiments were performed in 60 mm in diameter direct shear tester (Jenike shear tester) for four values of ...
M. Molenda, M. Stasiak
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Application of in situ direct shear device to shear strength measurement of rockfill materials
A simplified in situ direct shear test (DST) was developed for measuring the shear strength of soils in fields. In this test, a latticed shearing frame replaces the upper half of the shear box used in the conventional direct shear box test.
Si-hong Liu
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Shear strength of an unsaturated silty sand [PDF]
This paper presents a series of direct shear tests performed on a silty sand at three different gravimetric water contents. The soil was sampled from test pits south of Ruedlingen in North East Switzerland, where a landslide triggering experiment was ...
Casini, F, Minder, P, Springman, S
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Direct interface shear tests on Dunkirk sand [PDF]
After a field test campaign conducted in Dunkirk (north of France) on open-ended steel piles aiming to study the ageing phenomenon, laboratory scale shear tests were designed to study the behaviour of the sand-steel interface. In order to carry out this laboratory investigation, the direct interface shear apparatus was used for characterizing Dunkirk ...
Imane Salama, Christophe Dano
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The effect of grain size, surface roughness, and joint compressive strength on shear strength along discontinuities of Hungarian sandstones [PDF]
In this study, the joint shear strength of low-strength Hungarian sandstones of different grain size and surface roughness was investigated. The direct shear tests along discontinuities were performed under constant normal load.
Alina Vattai+23 more
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Interface shear characteristics of dredger fill and concrete using large size direct shear test
A large-size direct shear test was conducted to test the interface of dredger fill and concrete. The effect that concrete strength and the density of dredger fill have on the properties of interface is then analyzed.
Ping Yang+3 more
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In order to probe into one simplified method to predict the shear strength of Shaoxing unsaturated silty clay, the test method combining unsaturated soil consolidation instrument and conventional direct shear instrument is used to study the shear ...
Ruiqian Wu+5 more
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Recent research on composite beams with demountable shear connectors [PDF]
YesThis paper presents experimental and numerical investigation on an innovative composite floor system with deconstructability. In this system, a composite slab formed with metal profiled decking is connected to a steel beam using demountable shear ...
Allwood+10 more
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