Design of Bridging Layers in Geosynthetic-Reinforced Column-Supported Embankments: Fid-Bau Portal

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Design of Bridging Layers in Geosynthetic-Reinforced Column-Supported Embankments

G. M. Filz / M. E. Smith

The cost of column-supported embankments depends, in part, on the spacing between the columns and the size of the columns and pile caps. Geosynthetic reinforcement is often employed in bridging layers to enhance load transfer to the columns and to increase the column spacing. The number, stiffness, and strength of geosynthetic layers are selected based on considerations of load transfer and deformation. In this research, a new method was developed for calculating the load on the geosynthetic reinforcement. The new method employs one of the existing mechanistically based approaches and combines it with consideration of the stiffness of the embankment, geosynthetic reinforcement, columns, and existing site soil. The new method was verified against the results of a large numerical parameter study, for which the numerical procedures themselves were verified against closed-form solutions for membranes, pilot-scale experiments, and field case histories.

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Design of Bridging Layers in Geosynthetic-Reinforced Column-Supported Embankments

G. M. Filz / M. E. Smith

The cost of column-supported embankments depends, in part, on the spacing between the columns and the size of the columns and pile caps. Geosynthetic reinforcement is often employed in bridging layers to enhance load transfer to the columns and to increase the column spacing. The number, stiffness, and strength of geosynthetic layers are selected based on considerations of load transfer and deformation. In this research, a new method was developed for calculating the load on the geosynthetic reinforcement. The new method employs one of the existing mechanistically based approaches and combines it with consideration of the stiffness of the embankment, geosynthetic reinforcement, columns, and existing site soil. The new method was verified against the results of a large numerical parameter study, for which the numerical procedures themselves were verified against closed-form solutions for membranes, pilot-scale experiments, and field case histories.

Design of Bridging Layers in Geosynthetic-Reinforced Column-Supported Embankments

G. M. Filz / M. E. Smith

The cost of column-supported embankments depends, in part, on the spacing between the columns and the size of the columns and pile caps. Geosynthetic reinforcement is often employed in bridging layers to enhance load transfer to the columns and to increase the column spacing. The number, stiffness, and strength of geosynthetic layers are selected based on considerations of load transfer and deformation. In this research, a new method was developed for calculating the load on the geosynthetic reinforcement. The new method employs one of the existing mechanistically based approaches and combines it with consideration of the stiffness of the embankment, geosynthetic reinforcement, columns, and existing site soil. The new method was verified against the results of a large numerical parameter study, for which the numerical procedures themselves were verified against closed-form solutions for membranes, pilot-scale experiments, and field case histories.

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Title:

Design of Bridging Layers in Geosynthetic-Reinforced Column-Supported Embankments

Contributors:

G. M. Filz (author) / M. E. Smith (author)

Publication date:

2006

Size:

56 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Highway Engineering , Soil & Rock Mechanics , Embankments , Columns(Supports) , Bridge abutments , Design , Soil structures , Reinforcements(Structures) , Pile caps , Soil stabilization , Loads(Forces) , Deformation , Pile foundations , Geotechnical engineering , Reinforcing materials

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