Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Integrated automation erects Three Gorges Dam
More than 200 times in the past 2,000 years floods have ravaged the Yangtze (Changjiang) River basin in the People's Republic of China. To control flood waters in the middle and lower reaches of the Yangtze and provide electricity for the country's central and eastern regions, in 1994 China commenced building the Three Gorges Dam, the world's largest hydroelectric project ever undertaken. When it is completed in 2009 and full power generation begins, it will reach 607 feet skyward and span 7,054 feet across the Yangtze. To keep commerce flowing, there will be five locks, each 918 feet long and 114 feet wide, for barges up to 10,000 tons and a one-stage vertical lift for passenger or cargo vessels up to 3,000 tons. Two huge power stations will flank the dam's central spillway. Twenty-six 700-megawatt (MW) generators will produce 18,200 MW (nearly 85 billion kilowatt hours) of total generating capacity, which is one-eighth of China's total energy requirements. Construction would be impossible, however, without an automatically controlled system to continuously produce, convey, and pour concrete. The author looks at how fieldbus, PLCs, dynamic drives, and intelligent controls are being used to construct the dam.
Integrated automation erects Three Gorges Dam
More than 200 times in the past 2,000 years floods have ravaged the Yangtze (Changjiang) River basin in the People's Republic of China. To control flood waters in the middle and lower reaches of the Yangtze and provide electricity for the country's central and eastern regions, in 1994 China commenced building the Three Gorges Dam, the world's largest hydroelectric project ever undertaken. When it is completed in 2009 and full power generation begins, it will reach 607 feet skyward and span 7,054 feet across the Yangtze. To keep commerce flowing, there will be five locks, each 918 feet long and 114 feet wide, for barges up to 10,000 tons and a one-stage vertical lift for passenger or cargo vessels up to 3,000 tons. Two huge power stations will flank the dam's central spillway. Twenty-six 700-megawatt (MW) generators will produce 18,200 MW (nearly 85 billion kilowatt hours) of total generating capacity, which is one-eighth of China's total energy requirements. Construction would be impossible, however, without an automatically controlled system to continuously produce, convey, and pour concrete. The author looks at how fieldbus, PLCs, dynamic drives, and intelligent controls are being used to construct the dam.
Integrated automation erects Three Gorges Dam
Ruggles, M. (Autor:in)
InTech ; 47 ; 54-58
2000
5 Seiten
Aufsatz (Zeitschrift)
Englisch
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