| Issue |
MATEC Web of Conferences
Volume 11, 2014
International Congress on Materials & Structural Stability
|
|
|---|---|---|
| Article Number | 03009 | |
| Number of page(s) | 7 | |
| Section | Geotechnical & Environmental | |
| DOI | https://doi.org/10.1051/matecconf/20141103009 | |
| Published online | 28 April 2014 | |
Influence of Grain Size Coarse Soil on Shear Strength
Faculté de Technologie, Laboratoire de Génie Civil et Environnement, Sidi Bel-Abbès, Algérie
The geo- mechanical behavior of coarse soils is difficult to grasp by geotechnical methods , mainly due to the presence of large elements that disrupt or prevent the tests . Our work presents a study of the mechanical behavior of two coarse soils of different types namely Tuff MEKKEDRA and crushed gravel SIDI ALI- Benyoub west of Algeria by observing the effect of the size of diameters of the grains on the shear strength. Two aspects are considered. The first relates to a state of the art parameters which have a direct influence on the shear strength of coarse material . The second part concerns a presentation and analysis of the results of direct shear tests of materials prepared for Optimum Proctor. It is noted that the grain size affects in a significant way the properties of the shear strength. The bigger the diameter, the greater the angle of friction is important. However, the cohesion decreases with increasing grain size.
© Owned by the authors, published by EDP Sciences, 2014
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