1 / 16

Three Gorges Project: A Project of the Century

Three Gorges Project: A Project of the Century. By: Xinyu Huang. Introduction. A dream of nearly one century: first proposed in 1920’s Site survey and geotechnic measure in 1940’s Feasibility study and design during 1950’s to 1990’s Construction phase: 1993-2009.

amara
Download Presentation

Three Gorges Project: A Project of the Century

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Three Gorges Project: A Project of the Century By: Xinyu Huang

  2. Introduction • A dream of nearly one century: first proposed in 1920’s • Site survey and geotechnic measure in 1940’s • Feasibility study and design during 1950’s to 1990’s • Construction phase: 1993-2009

  3. Yangtze River & Three Gorges

  4. Three Gorges Scenic Site Views

  5. Three Gorges Project • Capacity: 39.3 billion c. m. • Annual power generation: 84.7 billion kwhr • Length: 2,335 m • Earth work: 125 million c. m.; Concrete work: 26 million c. m.; • Residents resettle: nearly 1 million (budget: 5 billion USD) • Project volume: 6 billion USD

  6. Proposed Functions • Control the flood • Improve river transportation • Generate power • Boost economy

  7. The project construction • Three phases • 1993-1997 • 1998-2003 • 2004-2009 • Employees: 20,000~30,000

  8. The project management • Construction Manager: The Three Gorge Development Corp. • International open bid, e.g., turbine-generator contract was awarded to a Canadian-German consortium.

  9. Problems accompanying • Population resettle

  10. Problems accompanying • Submerged cities

  11. A project of great controversy • Criticism • Negative impact to ecological system • High economic cost • Potential opportunity to earthquake • Population resettlement • Safety problems • Corruption

  12. A good lesson – Aswan Dam Aswan High Dam Project

  13. Proposed benefits of Aswan Benefits • Controlling the annual floods on the Nile and prevents the damage • Providing about a half of Egypt's power supply • Improving navigation along the river by keeping the water flow consistent

  14. During construction of Aswan • About 18 years of work • Over US$1 billion • Over 90,000 Nubians were relocated • The Temple of Abu Simel was shifted

  15. Hazards brought by Aswan • Seepage and evaporation accounts for a loss of about 12-14% of the annual input into the reservoir • The sediments of the Nile have been filling the reservoir and thus decreasing its storage capacity • The Nile delta is having problems due to the lack of sediment • Poor drainage of the newly irrigated lands has led to saturation and increased salinity. • Over half of Egypt's farmland is now rated medium to poor soils.

  16. Aswan: A limited success Conclusion: As a structure Aswan project is a success, but in its effect on the ecology of the Nile Basin, most of which could have been predicted, it is a failure (Florman, 1976). It is a great mistake made by civil engineers.

More Related