A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Molly Ann's brook channel protection system
In 1999, the U.S. Army Corps of Engineers designed and constructed a flood protection project for Molly Ann's Brook, located mainly in Paterson and Haledon, N.J. The brook is a tributary to the Passaic River, which flows through an urban area. Communities along the 2.5-mile stretch of the brook have been subject to repetitive flooding as a result of inadequate channel capacity. Given the savings and ease of construction of a geocell system, the Corps of Engineers employed this innovative approach at two difficult locations. Two areas of the channel protection project were chosen to utilize the geocell approach to bank protection. In both areas, the Corps utilized Presto's perforated Geoweb cellular confinement system. The first area implemented the geocell system for channel lining protection. The second area applied the unprecendented use of geocells in the construction of an earth retention structure. Perforated 8-in.-deep geocell layers, filled with compacted soil or agregate, were used to construct a 400-ft-long gravity wall along th right bank of the brook. Polymeric tendons and 0.5-in. diameter steel bars were specified to anchor the geocell sections to the 1V:2H channel side slope. Perforations were required in the interior geocell walls in order to allow the concrete within the 4-in. depth to adequately bond between the cells and to increase the frictional resistance between the concrete and the cell walls. Perforations also were necessary to achieve a high factor of safety against the dislodging of individual concrete-infilled cells in this channel exposed to freeze-thaw cycles and high-velocity storm events.
Molly Ann's brook channel protection system
In 1999, the U.S. Army Corps of Engineers designed and constructed a flood protection project for Molly Ann's Brook, located mainly in Paterson and Haledon, N.J. The brook is a tributary to the Passaic River, which flows through an urban area. Communities along the 2.5-mile stretch of the brook have been subject to repetitive flooding as a result of inadequate channel capacity. Given the savings and ease of construction of a geocell system, the Corps of Engineers employed this innovative approach at two difficult locations. Two areas of the channel protection project were chosen to utilize the geocell approach to bank protection. In both areas, the Corps utilized Presto's perforated Geoweb cellular confinement system. The first area implemented the geocell system for channel lining protection. The second area applied the unprecendented use of geocells in the construction of an earth retention structure. Perforated 8-in.-deep geocell layers, filled with compacted soil or agregate, were used to construct a 400-ft-long gravity wall along th right bank of the brook. Polymeric tendons and 0.5-in. diameter steel bars were specified to anchor the geocell sections to the 1V:2H channel side slope. Perforations were required in the interior geocell walls in order to allow the concrete within the 4-in. depth to adequately bond between the cells and to increase the frictional resistance between the concrete and the cell walls. Perforations also were necessary to achieve a high factor of safety against the dislodging of individual concrete-infilled cells in this channel exposed to freeze-thaw cycles and high-velocity storm events.
Molly Ann's brook channel protection system
Ein Schutz-System für den Molly Ann's-Bach-Kanal
DePasquale, A.J. (author) / Leatherman, D. (author) / Thomas, R. (author)
Geotechnical Fabrics Report ; 19 ; 44-50
2001
6 Seiten, 5 Bilder
Article (Journal)
English
| British Library Online Contents | 2007
| Taylor & Francis Verlag | 2022
Online Contents | 1994
| Online Contents | 2011
LEGAL - Rudi Klein - Ann's fantasy world
Online Contents | 2007