我国水力资源十分丰富，理论蕴藏量约6．8亿kw，其中可开发蕴藏量约3．7亿kw，居世界首位。但现开发程度仅为10％左右，近期规划开发的水电工程，大多位于西南、西北地区的大江大河的中上游河段。建国以来，我国的拱坝建设有了巨大的发展，拱坝在世界上可能是最多的。80年代以 China’s water resources are very rich, the theoretical reserves of about 680 million kw, of which reserves can be developed about 370 million kw, ranking first in the world. However, the development level is only about 10%. The hydropower projects planned and developed in the near future are mostly located in the middle and upper reaches of major rivers in the southwest and northwest regions. Since the founding of the People’s Republic of China, the construction of arch dams in our country has made tremendous development. Arch dams are possibly the most in the world. 80’s with