Submitted by admin on Wed, 05/30/2018 - 19:12
Photos
Placement of geosynthetic reinforcement for Column-Supported Embankment (CSE) From FHWA (2004).
Placement of select fill for CSE From FHWA (2004)
CSE fill placement to tension the geosynthetic. (Courtesy of Joel Sloan).
Placement and compaction of fill for CSE. (Courtesy of Joel Sloan).
Column-supported T-Wall installation From FHWA (2004)
Completed T-Wall column supported embankment for Rancocas Bridge approach. From FHWA (2004)
Geosynthetic placement for CSE. (Courtesy of Jim Collin).
Geosynthetic placement for a CSE with alternate roll direction from the previous layer. (Courtesy of Jim Collin).
Base layer of geosynthetic reinforcement for a CSE. (Courtesy of Jim Collin).
Overview

 

 

Photograph of steel pipe piles placed to support a load transfer platform as part of an embankment widening project.

Photograph courtesy of Rich Lamb, Foundations Engineer Mn/DOT Office of Materials

 

Columns of strong material are placed in soft ground, providing the necessary support to overlying embankments by transferring the embankment load to a firm stratum. A load transfer platform can be used at the base of the embankment to span the space between columns. Total settlement is reduced and stability of the embankment is improved through the use of CSEs. This technique is applicable to new embankments over unstable soils and roadway widening.

 

Classes
Embankments Over Soft Soils