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Behaviour of Bridge Abutments on Clay

M. D. Bolton / S. M. Springman / H. W. Sun

Aspects of the behavior of bridge abutments on clay have been simulated in small-scale centrifuge models. Data of two contrasting tests are presented. One shows the behavior of a full-height abutment with a spread base over firm to stiff clay, during backfilling, deck loading, and subsequent clay consolidation. The other investigates the lateral loading effect of embankment surcharge on pre-driven piles, such as might be used to support an abutment on softer clay. A simplified deformation mechanism captures approximately the observed patterns of undrained lateral movements. This can form the basis of a design method which accounts properly for soil-structure interaction.

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Behaviour of Bridge Abutments on Clay

M. D. Bolton / S. M. Springman / H. W. Sun

Aspects of the behavior of bridge abutments on clay have been simulated in small-scale centrifuge models. Data of two contrasting tests are presented. One shows the behavior of a full-height abutment with a spread base over firm to stiff clay, during backfilling, deck loading, and subsequent clay consolidation. The other investigates the lateral loading effect of embankment surcharge on pre-driven piles, such as might be used to support an abutment on softer clay. A simplified deformation mechanism captures approximately the observed patterns of undrained lateral movements. This can form the basis of a design method which accounts properly for soil-structure interaction.

Behaviour of Bridge Abutments on Clay

M. D. Bolton / S. M. Springman / H. W. Sun

Aspects of the behavior of bridge abutments on clay have been simulated in small-scale centrifuge models. Data of two contrasting tests are presented. One shows the behavior of a full-height abutment with a spread base over firm to stiff clay, during backfilling, deck loading, and subsequent clay consolidation. The other investigates the lateral loading effect of embankment surcharge on pre-driven piles, such as might be used to support an abutment on softer clay. A simplified deformation mechanism captures approximately the observed patterns of undrained lateral movements. This can form the basis of a design method which accounts properly for soil-structure interaction.

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Title:

Behaviour of Bridge Abutments on Clay

Contributors:

M. D. Bolton (author) / S. M. Springman (author) / H. W. Sun (author)

Publication date:

1989

Size:

19 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Highway Engineering , Soil & Rock Mechanics , Structural Analyses , Soil mechanics , Bridge abutments , Clays , Loads(Forces) , Bridges(Structures) , Bridge foundations , Meetings , Structural analysis , Civil engineering , Subsurface structures , Test facilities , Reprints , Foreign technology

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