摘要：To date,the three gorges project is the largest hydro junction in the *** is the key project for the integrated water resource management and development of the Changjiang *** technology of the project,with its huge scale and comprehensive benefits,is extremely complicated,and the design difficulty is greater than that of any other hydro project in the world.A series of new design theories and methods have been proposed and applied in the design and research *** key technological problems regarding hydraulic structures have been overcome,such as a gravity dam with multi-layer large discharge orifices,a hydropower station of giant generating units,and a giant continual multi-step ship lock with a high water head.

摘要：The dam of three gorges project is a concrete gravity dam with the crest elevation of 185 m,the maximum height of 181 m and dam axis length of 2 309.5 *** dam consists of spillway,powerhouse,non-over flow,ship-lift,temporary ship-lock,left diversion wall and longitudinal cofferdam *** key techniques relating to dam structure design are presented,including hydraulics of flood discharge structure,dam joint design,layout and structural type of penstock,deep anti-sliding stability of dam foundation,reconstruction of temporary ship-lock and closed drainage and pumping of dam foundation.

摘要：The dam of three gorges project is characterized by large flood discharge capacity,more outlets,complicated flood discharge and energy dissipation structure,and the stability of the bank powerhouse dam foundation is endangered by large gentle-dip structural plane of the bedrock due to the deep excavation of powerhouse at the *** the dam body concrete,the durability requirement is high and the temperature control and crack prevention are *** practical experience which could be used for reference in the design and construction of asphalt concrete core wall for Maopingxi protective earth-rock dam is *** power station operates with high water head and large head *** type selection of penstock and intake as well as the embedding way of spiral case are complicated in technique,and the tailrace tunnel with sloping ceiling of underground power plant is arranged instead of traditional tailrace surge *** the double-line five-step ship-lock,the design of fully lined ship-lock,high head delivery system and large-sized miter gates and hoists is very challenging due to high operation head,complicated delivery conditions and building in deep excavated *** preferred solutions,optimal schemes and technical measures for various structures,as well as the innovation achievements proved by practice are highlighted.

摘要：The world-famous three gorges project (TGP) is the largest hydropower station in the world and the largest water resources and hydropower project constructed in *** impoundment of three gorges Reservoir reached the design water level of 175 m for the first time on October 26,2010,which indicated that the project had met design requirements of various functionalities of flood control,power generation and *** complete the project it took nearly 100 years for conception,demonstration,design and construction of the *** was the conception of TGP proposed? What kind of role should it be? What were the different opinions? How was the project demonstrated? What was the conclusion of demonstration? Those are the issues that many people care and don't know *** memorize the realization of the century dream of Chinese people and to record the history of development of TGP,the author presents a compendious introduction to the project.

摘要：The general design and layout of the double-line five-step ship-lock,the water delivery technique for high head ship-lock,the key technical problems of fully lined ship-lock and the monitoring techniques for large-scale miter gates and hoisting equipment under complicated operation conditions of three gorges project (TGP) are *** the operation of ship-lock in 2003,the operation practice has proved that the design techniques are advanced,rational and *** design and construction of the fully lined ship-lock promotes the development of design theory and practice of ship-lock projects,which makes the construction technology of ship-lock in the world reach a new level.

摘要：The construction of three gorges project (TGP) is characterized by large construction scale,high construction intensity and complexity in *** view of various technical difficulties such as navigation in construction period,two river closures,high-intensity concrete and earth-rock construction,high-intensity construction and demolition of RCC (roller compacted concrete) cofferdam in stage III and immediate navigation of double-line five-step shiplock after impoundment of reservoir,the scheme of river diversion during construction is adopted,namely "diversion in 3 stages,open channel navigation and cofferdam power generation".The practice and innovation achievements in river diversion during construction as well as earth-rock and concrete construction are presented emphatically.