三峡大坝

Three Gorges Dam Project is composed of the dam, the hydropower stations and the navigation facility. It measures 607 feet tall and the top is 3,319 yards wide. It has taken 17 years to finish the construction of the whole project, which started in 1992 and includes three stages. The first stage took five years from 1992 to 1997. During this period, the cofferdam construction and the excavation of a diversion channel in the first stage were finished. Meanwhile, a temporary ship lock on the left bank of the river and some preparation work was also completed. The second stage lasted six years from 1998 to 2003, when the cofferdam construction was in its second stage and was undertaken at the same time as the construction of the permanent ship lock and the navigation buildings. The power station facilities construction and the installation of machinery on the left bank were also completed. The third stage of the project began in 2003 and has been completed in 2009. During this period, the installation of all machinery, the construction of the power station and the dam on the right bank are finished. Now, a 3,861 square miles canyon-reservoir dam is presented to the world.

三峡大坝工程”是短期内的水控制项目在长江三峡。它座落在西陵峡谷的中间部分(长江三峡之一)在宜昌Sandouping镇附近城市,湖北省。是世界上最大的水电工程,三峡大坝项目创造了许多“第一次”等最有效的防洪大坝,最困难的建设工作和世界上最大的移民项目。

三峡大坝工程由大坝、水电站和导航设施。它措施607英尺高,3319码宽。花了17年完成整个项目,建设始于1992年,包括三个阶段。第一阶段从1992年到1997年五年。在此期间,围堰施工的开挖一条导流渠在第一阶段完成。与此同时,一个临时船闸在河的左岸和一些准备工作也完成了。第二阶段从1998年到2003年持续了6年,围堰施工时的第二阶段,同时进行永久船闸的建设和导航建筑。电站设施建设和安装机械的左岸也完成了。第三阶段项目始于2003年,并于2009年完成。在此期间,所有的安装机械、发电站和大坝的建设银行完成。现在,一个3861平方英里canyon-reservoir大坝呈现给世界。