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Monster of a dam blast
07 June 2006
CHINA blew up the last temporary wall protecting the Three Gorges Dam yesterday, using enough explosives to bring down 400 10-storey buildings.
The 580m long, 140m high, coffer dam connected to the southern bank of the Yangtze River was destroyed in 12 seconds.
More than 190 tonnes of explosives planted beneath the water were set off in a series of explosions, the Xinhua news agency said.
The blast sprayed almost 190,000 cubic metres of concrete fragments into China's longest river, Xinhua said.
Engineers declared the operation a success, and claimed the blast would not trigger earthquakes.
"Blasting away the concrete coffer dam . . . will spark off no severe geological disasters," said Li Yong'an, general manager of China Yangtze River Three Gorges Development Corporation.
Removal of the coffer dam, a watertight chamber that allows building work under water, means the world's largest dam had effectively begun flood control two years ahead of schedule, Xinhua said.
Construction of the Three Gorges Dam -- the world's largest hydroelectricity project -- was completed last month after work began in 1997.
More than 100 people died during the $33.5 billion construction project, state media reported.
More than 1.3 million people have been, or are yet to be, moved.
REUTERS
07 June 2006
CHINA blew up the last temporary wall protecting the Three Gorges Dam yesterday, using enough explosives to bring down 400 10-storey buildings.
The 580m long, 140m high, coffer dam connected to the southern bank of the Yangtze River was destroyed in 12 seconds.
More than 190 tonnes of explosives planted beneath the water were set off in a series of explosions, the Xinhua news agency said.
The blast sprayed almost 190,000 cubic metres of concrete fragments into China's longest river, Xinhua said.
Engineers declared the operation a success, and claimed the blast would not trigger earthquakes.
"Blasting away the concrete coffer dam . . . will spark off no severe geological disasters," said Li Yong'an, general manager of China Yangtze River Three Gorges Development Corporation.
Removal of the coffer dam, a watertight chamber that allows building work under water, means the world's largest dam had effectively begun flood control two years ahead of schedule, Xinhua said.
Construction of the Three Gorges Dam -- the world's largest hydroelectricity project -- was completed last month after work began in 1997.
More than 100 people died during the $33.5 billion construction project, state media reported.
More than 1.3 million people have been, or are yet to be, moved.
REUTERS
