Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Geofoam provides lightweight fill for York Bridge in Washington
An interesting project wider way in the Seattle area is the reconstruction of the York Bridge on Northeast 116th Street north of Redmond, Wash. After the supports for the new Bridge were completed, Crews worked on the deck and approach roadways using some innovative materials this summer. Because the bridge over the Sammamish River is surrounded by deep, compressible peat and clay soils, the King County Road Services Division needed to find a lightweight fill for the approach road on the west side. Engineers on the project turned to geofoam blocks. The blocks were placed between pre-cast concrete panel walls. On top of the foam is a concrete slab - a 'load distribution slab' that secures the geofoam blocks to keep them in place and to distribute the traffic loads. Next is a layer of soil, then the asphalt layers. Using this technique made it possible to raise the road elevation. In fact, to raise it enough so that the Sammamish River Trail now runs under the new bridge instead of on the road as it was before the bridge reconstruction improving safety for trail users as well as motorists. The new bridge is scheduled to open in September.
Geofoam provides lightweight fill for York Bridge in Washington
An interesting project wider way in the Seattle area is the reconstruction of the York Bridge on Northeast 116th Street north of Redmond, Wash. After the supports for the new Bridge were completed, Crews worked on the deck and approach roadways using some innovative materials this summer. Because the bridge over the Sammamish River is surrounded by deep, compressible peat and clay soils, the King County Road Services Division needed to find a lightweight fill for the approach road on the west side. Engineers on the project turned to geofoam blocks. The blocks were placed between pre-cast concrete panel walls. On top of the foam is a concrete slab - a 'load distribution slab' that secures the geofoam blocks to keep them in place and to distribute the traffic loads. Next is a layer of soil, then the asphalt layers. Using this technique made it possible to raise the road elevation. In fact, to raise it enough so that the Sammamish River Trail now runs under the new bridge instead of on the road as it was before the bridge reconstruction improving safety for trail users as well as motorists. The new bridge is scheduled to open in September.
Geofoam provides lightweight fill for York Bridge in Washington
Geoschaum bietet leichten Füllstoff für die York-Brücke in Washington
Dusenberry, Kevin (Autor:in) / Bygness, Ron (Autor:in)
Geosynthetics ; 24 ; 36-42
2006
6 Seiten, 7 Bilder
Aufsatz (Zeitschrift)
Englisch
York Bridge Geofoam provides lightweight fill for the new York Bridge in Washington
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