Sciences & technologie. B, Sciences de l’ingénieur
Volume 0, Numéro 21, Pages 37-44
2004-06-30
An Experimental Study Of The Behaviour Of Interface Shearing Between Fine Grained Soils And Steel
Authors : Hammoud F . Boumekik A .
Abstract
The shear strength, when large displacements occur, at the interface between two types of clays and steel has been studied in the ring shear apparatus. The results obtained indicate that the surface roughness and the average diameter of particles have a significant effect on the interfacial shear strength.. According to roughness, two shearing modes are likely to take place: shearing at the interface and shearing within the soil. For soil- soil shearing, the "pre-sheared" clay shear strength is likely to be either equal (neutral effect) or greater (positive effect) than that obtained for not pre-sheared samples. However, in interface tests, the clays tested may exhibit neutral, positive or negative effect.
Keywords
fine grained soil - residual strength - ring shear apparatus – surface roughness - interface - laboratory test - soil-structure interaction – large displacement
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