A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Case Study of EPS Geofoam Lightweight Fill for Settlement Control at Bridge Approach Embankment
Expanded Polystyrene Geofoam lightweight fill was used to mitigate settlement of bridge approach embankments constructed over compressible silty clay soils. Three settlement mitigation alternatives were considered: no mitigation measures; wick drains with surcharge; and EPS geofoam lightweight fill. Lightweight fill was selected in order to meet the very aggressive project schedule. The lightweight material was proportioned to limit post-construction differential settlements to 6 inches between the pile-supported bridge and earth-supported approach embankments, and to 3 inches or less from one side to the other of the 30-foot wide approach slab. An HDPE protective membrane system was installed to protect the geofoam from fuel spills. Settlements measured using conventional settlement platforms are compared to estimated settlements.
Case Study of EPS Geofoam Lightweight Fill for Settlement Control at Bridge Approach Embankment
Expanded Polystyrene Geofoam lightweight fill was used to mitigate settlement of bridge approach embankments constructed over compressible silty clay soils. Three settlement mitigation alternatives were considered: no mitigation measures; wick drains with surcharge; and EPS geofoam lightweight fill. Lightweight fill was selected in order to meet the very aggressive project schedule. The lightweight material was proportioned to limit post-construction differential settlements to 6 inches between the pile-supported bridge and earth-supported approach embankments, and to 3 inches or less from one side to the other of the 30-foot wide approach slab. An HDPE protective membrane system was installed to protect the geofoam from fuel spills. Settlements measured using conventional settlement platforms are compared to estimated settlements.
Case Study of EPS Geofoam Lightweight Fill for Settlement Control at Bridge Approach Embankment
Snow, Christopher L. (author) / Nickerson, Charles R. (author)
GeoTrans 2004 ; 2004 ; Los Angeles, California, United States
2004-07-21
Conference paper
Electronic Resource
English
Case Study of EPS Geofoam Lightweight Fill for Settlement Control at Bridge Approach Embankment
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