Exploring the macro- and micro-scale response of an idealised granular material in the direct shear apparatus

Géotechnique ◽  
2006 ◽  
Vol 56 (7) ◽  
pp. 455-468 ◽  
Author(s):  
L. Cui ◽  
C. O'Sullivan
Keyword(s):  
Granular Material ◽  
Direct Shear ◽  
Micro Scale ◽  
Scale Response ◽  
Direct Shear Apparatus

A New Direct Shear Apparatus for Rock Joints Specialized in Cyclic Loading

2021 ◽  
Author(s):  
Zhen Cui ◽  
Qian Sheng ◽  
Mao-chu Zhang ◽  
Jun-feng Cao ◽  
Xian-cheng Mei ◽  
...  
Keyword(s):  
Cyclic Loading ◽  
Rock Joints ◽  
Direct Shear ◽  
Direct Shear Apparatus

scholarly journals Frictional properties between geocells filled with granular material

2021 ◽  
Vol 20 (2) ◽  
pp. 332-345
Author(s):  
Gökhan Altay ◽  
◽  
Cafer Kayadelen ◽  
Taha Taskiran ◽  
Baki Bagriacik ◽  
...  
Keyword(s):  
Granular Material ◽  
Normal Stress ◽  
Granular Materials ◽  
Direct Shear ◽  
Shear Tests ◽  
Direct Shear Tests ◽  
Frictional Properties ◽  
Geotechnical Structures ◽  
Series Of Experiments ◽  
Restricted Volume

The parameters concerning the interaction between geocell and granular materials is required for the design of many geotechnical structures. With this in mind, a series of experiments using simple direct shear tests are conducted in order to understand the frictional properties between geocells filled with granular materials. The 54 test samples are prepared by filling the geocell with granular materials having three different gradations. These samples are tested at three different relative densities under three different normal stress levels. As a result, it was observed that interface resistance between the geocells filled with granular material is found to be generally greater than in the samples without geocells. Additionally, these samples with geocells are found to be stiffer; this is due to the fact that the samples with geocell gained more cohesion because geocells confined the grains within a restricted volume.

Effect of micro-scale morphological parameters on meso-scale response of Asphalt Concrete

2014 ◽  
pp. 1775-1784 ◽  
Author(s):  
Ibrahim Onifade ◽  
Denis Jelagin ◽  
Alvaro Guarin ◽  
Björn Birgisson ◽  
Nicole Kringos
Keyword(s):  
Asphalt Concrete ◽  
Morphological Parameters ◽  
Micro Scale ◽  
Scale Response ◽  
Meso Scale

Meso and micro-scale response of post carbon removal nitrifying MBBR biofilm across carrier type and loading

2016 ◽  
Vol 91 ◽  
pp. 235-243 ◽  
Author(s):  
Bradley Young ◽  
Bahman Banihashemi ◽  
Daina Forrest ◽  
Kevin Kennedy ◽  
Alain Stintzi ◽  
...  
Keyword(s):  
Carbon Removal ◽  
Micro Scale ◽  
Scale Response

A Modified Osmotic Direct Shear Apparatus for Testing Unsaturated Soils

2012 ◽  
Vol 36 (1) ◽  
pp. 20120092 ◽  
Author(s):  
A. Hamidi ◽  
G. Habibagahi ◽  
M. Ajdari
Keyword(s):  
Unsaturated Soils ◽  
Direct Shear ◽  
Direct Shear Apparatus

Determination of the shear strength parameters of an unsaturated soil using the direct shear test

1988 ◽  
Vol 25 (3) ◽  
pp. 500-510 ◽  
Author(s):  
J. K. M. Gan ◽  
D. G. Fredlund ◽  
H. Rahardjo
Keyword(s):  
Shear Strength ◽  
Unsaturated Soils ◽  
Testing Procedure ◽  
Direct Shear ◽  
Shear Tests ◽  
Direct Shear Tests ◽  
Wide Range ◽  
Practical Engineering ◽  
Direct Shear Apparatus

Multistage direct shear tests have been performed on saturated and unsaturated specimens of a compacted glacial till. A conventional direct shear apparatus was modified in order to use the axis-translation technique for direct shear tests on unsaturated soils. The soil can be subjected to a wide range of matric suctions. The testing procedure and some typical results are presented. Nonlinearity in the failure envelope with respect to matric suction was observed. Suggestions are made as to how best to handle the nonlinearity from a practical engineering standpoint. Key words: shear strength, unsaturated soils, negative pore-water pressures, soil suction, direct shear.

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