Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Underwater Lining of Operating Canals
To determine the feasibility of lining a canal without de-watering the canal, the Bureau of Reclamation constructed a 1.5-mile-long test section on the Coachella Canal in the Imperial Vally of southeastern California. The canal was lined with an impervious 30-mil PVC (polyvinyl chloride) geomembrane. The geomembrane lining was protected by a 3-inch-thick concrete cover. The concrete contained an AWA (anti-washout admixture), which prevented the washout of fines in the flowing water and facilitated placement. A water depth of nine feet was maintained in the canal during construction. The Coachella Canal relining project successfully demonstrated a procedure that can be used on many other unlined canals to reduce water seepage, improve flow characteristics, and facilitate maintenance operations.
Underwater Lining of Operating Canals
To determine the feasibility of lining a canal without de-watering the canal, the Bureau of Reclamation constructed a 1.5-mile-long test section on the Coachella Canal in the Imperial Vally of southeastern California. The canal was lined with an impervious 30-mil PVC (polyvinyl chloride) geomembrane. The geomembrane lining was protected by a 3-inch-thick concrete cover. The concrete contained an AWA (anti-washout admixture), which prevented the washout of fines in the flowing water and facilitated placement. A water depth of nine feet was maintained in the canal during construction. The Coachella Canal relining project successfully demonstrated a procedure that can be used on many other unlined canals to reduce water seepage, improve flow characteristics, and facilitate maintenance operations.
Underwater Lining of Operating Canals
W. F. Kepler (Autor:in) / A. I. Comer (Autor:in)
1994
86 pages
Report
Keine Angabe
Englisch
Civil Engineering , Materials Degradation & Fouling , Plastics , Canal linings , Polyvinyl chlorides , Canal construction , Geotechnical fabrics , Feasibility studies , Construction , Civil engineering , Concrete , Underwater engineering , Seepage control , Erosion , Shear , Water flow , Geomembranes , Coachella Canal , Southeast Region(California)
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