Shear Strength and Deformation Behaviour of Glass Fibre-Reinforced Cohesive Soil with Varying Dry Unit Weight
By: Patel, Suchit Kumar
.
Contributor(s): Singh, Baleshwar.
Publisher: New York Springer 2019Edition: Vol. 49(3), June.Description: 241-254p.Subject(s): Civil EngineeringOnline resources: Click here
In:
Indian geotechnical journalSummary: Proctor compaction and consolidated undrained triaxial tests were carried out to investigate the effects of glass fibre reinforcement on the shear strength and deformation behaviour of a cohesive soil under different compaction states. The fibre diameter was 0.15 mm, varying in length from 10 to 30 mm, and in content from 0 to 4% by weight of the dry soil. The separate and joint effects of fibre content, fibre length, confining pressure and dry unit weight on the deviator stress response, pore water pressure response, deformation mode, stiffness and shear strength of the specimens were evaluated. The shear strength of the reinforced soil increases with the moulding dry unit weight, though the optimum fibre content and fibre length remain the same for all dry unit weights. Multiple-regression statistical analysis was carried out to develop an expression for predicting the major principal stress at failure of the glass fibre-reinforced cohesive soil.
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Proctor compaction and consolidated undrained triaxial tests were carried out to investigate the effects of glass fibre reinforcement on the shear strength and deformation behaviour of a cohesive soil under different compaction states. The fibre diameter was 0.15 mm, varying in length from 10 to 30 mm, and in content from 0 to 4% by weight of the dry soil. The separate and joint effects of fibre content, fibre length, confining pressure and dry unit weight on the deviator stress response, pore water pressure response, deformation mode, stiffness and shear strength of the specimens were evaluated. The shear strength of the reinforced soil increases with the moulding dry unit weight, though the optimum fibre content and fibre length remain the same for all dry unit weights. Multiple-regression statistical analysis was carried out to develop an expression for predicting the major principal stress at failure of the glass fibre-reinforced cohesive soil.
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