雙語科技百科(近現代成就) 第122期:三峽工程

The Three Gorges Project

長江三峽工程

The Three Gorges Project (TGP) is located in Sandouping of the Xiling Gorge, consisting of a large dam across a river, hydroelectric power station and navigation structures. It is an exceptionally large water conservancy scheme possessing enormous, comprehensive utilization benefits for flood control, power generation, navigation, breeding of aquatic products and water supply.

三峽工程位於長江三峽之一的西陵峽的中段，壩址在宜昌市的三鬥坪。三峽工程建築由大壩、水電站廠房和通航建築物三大部分組成。作爲世界上最大的水利樞紐工程，三峽工程在防洪、發電、航運、養殖等方面均有巨大效益。

Initial Timetable :

三峽工程分三期

1993-1997 : The Yangtze River was diverted after four years in November 1997 1998-2003: The first group of generators began to generate power in 2003, and a permanent ship lock opened for navigation the same year.

從1992年開工，到2009年竣工，總工期17年。一期工程5年(1992-1997)，主要工程除準備工作外，主要進行一期圍堰填築，導流明渠開挖。二期工程6年(1998—2003)，工程主要任務是修築二期圍堰，左岸大壩的電站設施建設及機組安裝，同時繼續進行並完成永久特級船閘，升船機的施工。

2004-2009 : The entire project is to be completed by 2009,when all 26 generators ( with a combined generating capacity of 18. 2 million kw)will be able to gen- erate 84.7 billion kwh of electricity annually.

三期工程6年( 2003-2009)，本期進行的右岸大壩和電站的施工，並繼續完成全部機組安裝。屆時，水電站總裝機容量爲1820萬千瓦，年發電量847億千瓦時。

May 20, 2006 was a historical day for the famous Three Gorges Hydro-electric Project on Yangtze River: the Three Gorges Dam was officially opened except the ship lift, nearly 10 months earlier than scheduled. As the largest reinforced concrete dam in the world, the main dam has concrete poured t0 185 meters above sea level, and is 2309 meters long. The construction of the Three Gorges Project was begun in 1994 and the Yangtze River was completely blocked on Nov. 8, 1997 at the Three Gorges when the opening in the diversion canal of the Dam Project was e the natural flow of the mighty river at the Three Gorges is cut. The construction of the Three Gorges Project entered the next stage: the construction of the Three Gorges Three Gorges Project is the largest hydro-electric power station in the world, with a combined generating capacity of 18.2 million kw and an annual electricity generation of 84.7 billion kwh.

2006年5月20日，舉世矚目的長江三峽水利樞紐工程迎來了歷史性一刻：三峽大壩建成！三峽大壩全線澆築達到海拔185米高程，比原計劃提前近10個月。主體工程三峽大壩全長2309米，是世界上規模最大的混凝土重力壩。長江三峽水利樞紐工程於1994年底正式動工。1997年11月8日，長江三峽工程在湖北宜昌西陵峽江面順利實施了大江截流，達標誌着三峽工程在本世紀內走出了關鍵性的一步，新一輪工程施工，主體工程三峽大壩，進入實質性階段。建成後的三峽工袒是迄今世界上最大的水利樞紐，其1820萬千瓦的裝機容量和847億千瓦時的年發電量均居世界第一。