Three Gorges Reservoir Region inland areas, especially with the construction of the Three Gorges Project. Furthermore, the Three Gorges Region is now and will be more and more significant for the economic progress of China. The Three Gorges Region has made its economic aims as follows. During the second phase of reservoir water storage, 25 county-level divisions were involved in the submersion of the reservoir water storage. But from 1992 up to 2002, they had changed a lot as follows. Three Gorges Reservoir Region Three Gorges Reservoir Region, including 25 county-level divisions of Chongqing municipality and Hubei province, is the region directly or indirectly
Arch dam dam stronger foundation is required as it involves overhangs at the abutment sections. The constant angle arch dam is that in which the central angles of the horizontal arch rings are of the same magnitude at all elevations. Arch dam An arch dam is a concrete dam that is curved upstream in plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, compressing and strengthening the structure as it pushes into its foundation or abutments. An arch dam is most suitable for narrow canyons or gorges with