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Interface Tests to Investigate Pile Skin Friction in Sands

J. T. Tabucanon / D. W. Airy

A series of direct shear tests have been performed to investigate the effects of different interface roughnesses for a dry silica sand. The implications of these results for the skin friction developed on pile shafts are considered. For each surface, roughness tests have been performed for three normal stresses and two different soil densities. The interface results are compared with the responses from conventional shear tests on the sand. It has been found that both the maximum stress ratio and the volume changes are significantly affected by the interface roughness, and also by the boundary conditions imposed by the equipment.

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Interface Tests to Investigate Pile Skin Friction in Sands

J. T. Tabucanon / D. W. Airy

A series of direct shear tests have been performed to investigate the effects of different interface roughnesses for a dry silica sand. The implications of these results for the skin friction developed on pile shafts are considered. For each surface, roughness tests have been performed for three normal stresses and two different soil densities. The interface results are compared with the responses from conventional shear tests on the sand. It has been found that both the maximum stress ratio and the volume changes are significantly affected by the interface roughness, and also by the boundary conditions imposed by the equipment.

Interface Tests to Investigate Pile Skin Friction in Sands

J. T. Tabucanon / D. W. Airy

A series of direct shear tests have been performed to investigate the effects of different interface roughnesses for a dry silica sand. The implications of these results for the skin friction developed on pile shafts are considered. For each surface, roughness tests have been performed for three normal stresses and two different soil densities. The interface results are compared with the responses from conventional shear tests on the sand. It has been found that both the maximum stress ratio and the volume changes are significantly affected by the interface roughness, and also by the boundary conditions imposed by the equipment.

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Title:

Interface Tests to Investigate Pile Skin Friction in Sands

Contributors:

J. T. Tabucanon (author) / D. W. Airy (author)

Publication date:

1992

Size:

26 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Structural Analyses , Soil & Rock Mechanics , Sands , Shear tests , Bearing capacity , Pile structures , Skin friction , Stress analysis , Soil properties , Soil pressure , Mathematical models , Roughness , Displacement , Foreign technology

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