Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Reinforcing weak subgrade with cellular confinement systems
In the spring and summer of 2000, construction was undertaken of the container storage area for berths 55/56 in the port of Oakland, Calif. By employing a 200-mm-thick layer of crushed concrete, held in place and strengthened by a geosynthetic cellular confinement system, construction crews were able to build a stable yet flexible subgrade to support construction of the base layer. This approach cut construction costs by reducing the thickness of this reinforcing layer and by using recycled on-site material as fill. The project manager recommended the use of a perforated Geoweb geocell system. This fully engineered, threedimensional cellular confinement system features expandable, polyethylene honeycomb-like cells that improve the load-support performance of infill. The system produces a stiff,flexible base that stabilizes subgrade or base materials and is designed to help distribute any localized subgrade contact pressures over a larger area and control differential and total settlements, even on low-strength subgrades like those found in this project. The engineered pattern of cellwall perforations provides frictional interlock with the infill material and improves lateral drainage, resulting in better performance in saturated soils.
Reinforcing weak subgrade with cellular confinement systems
In the spring and summer of 2000, construction was undertaken of the container storage area for berths 55/56 in the port of Oakland, Calif. By employing a 200-mm-thick layer of crushed concrete, held in place and strengthened by a geosynthetic cellular confinement system, construction crews were able to build a stable yet flexible subgrade to support construction of the base layer. This approach cut construction costs by reducing the thickness of this reinforcing layer and by using recycled on-site material as fill. The project manager recommended the use of a perforated Geoweb geocell system. This fully engineered, threedimensional cellular confinement system features expandable, polyethylene honeycomb-like cells that improve the load-support performance of infill. The system produces a stiff,flexible base that stabilizes subgrade or base materials and is designed to help distribute any localized subgrade contact pressures over a larger area and control differential and total settlements, even on low-strength subgrades like those found in this project. The engineered pattern of cellwall perforations provides frictional interlock with the infill material and improves lateral drainage, resulting in better performance in saturated soils.
Reinforcing weak subgrade with cellular confinement systems
Verfestigung eines schwachen Untergrunds mit zellenförmigen Einschlußstrukturen
Northcutt, G. (Autor:in)
Geotechnical Fabrics Report ; 20 ; 38-40
2002
3 Seiten, 3 Bilder
Aufsatz (Zeitschrift)
Englisch
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