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Modified Ring Shear Apparatus for Unsaturated Soils Testing
Geotechnical Testing Journal, 2007Abstract This paper presents the design details of an automated modified ring shear apparatus for the testing of unsaturated soils using the axis-translation technique. The components of this automated system are described, as well as the types of tests that it can be used for.
JAI Sedano, SK Vanapalli, VK Garga
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Shear Behaviors of Saturated Loess in Naturally Drained Ring-Shear Tests
2015A series of ring-shear tests was conducted on saturated loess to investigate the effects of shear rates and normal stress levels on the shear behaviors. The test results revealed that the effect of shear rate on shear strength of loess is strongly dependent on the normal stress levels.
Shun Wang +3 more
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Objective Oriented Multistage Ring Shear Test for Shear Strength of Landslide Soil
Journal of Geotechnical and Geoenvironmental Engineering, 2004Ring shear tests were conducted on five samples of different nature with a modified Imperial College type ring shear machine. The three different testing methods used, (1) individual sample testing for each normal stress, (2) increasing load multistage ring shear test, and (3) reducing load multistage ring shear test, all showed similar effective ...
Binod Tiwari, Hideaki Marui
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DETERMINATION OF RESIDUAL SHEAR STRENGTHS OF CLAYS BY RING SHEAR TESTS
2021In civil engineering determination of residual strength parameters for soils are very important. They are very important for stability verification especially slopes with preexisting slide surface and slopes that includes fissures, clayed soil. There must be very large displacements for determining residual shear strength, because of that stability of ...
ŞAKAR, Burak Bahadır, SAVAŞ, Hasan
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Constant volume ring shear test for sand.
2009A ring shear device was designed to permit constant volume tests to be performed on granular materials. Constant volume ring shear tests can be used to simulate undrained conditions of shearing. The very large deformations allowed by the ring shear device are well suited to determine the steady-state strength of granular material.
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Interface behaviours from large diameter ring shear tests
2010A series of constant load (CNL) and constant stiffness (CNS) interface tests have been performed using sand in a large 1m diameter ring shear apparatus. CNS tests were performed using silica and carbonate sands to explore effects that volume changes have on the stresses developed on rough and smooth interfaces.
Airey D.W., Kelly R.B.
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Ring Shear Tests on a Carbonate Sandy Silt
Geotechnical Testing Journal, 1999Abstract The paper describes a series of ring shear tests on a carbonate sandy silt designed to simulate soil shearing caused by pile installation and soil shearing resistance developed during pile loading. The tests were performed on the soil and on soil-steel interfaces at large displacements.
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Shear Behavior and Shear Zone Structure of Granular Materials in Naturally Drained Ring Shear Tests
2007“Sliding Surface Liquefaction” is a process causing strength loss and consequent rapid motion and long runout of certain landslides. Using a new ring shear apparatus with a transparent shear-box and digital video camera system, shear-speed-controlled tests were conducted on mixed grains (mixture of three different sizes of sand and gravel) and mixed ...
Hiroshi Fukuoka +2 more
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