Mantianxing Hydropower Station
Second Awards of National Excellent Investigation Project
The five-circle center ultra thin arc dam is designed by earliest adoption of full stress optimization in China.
Mantianxing Hydropower Station is located in Rucheng County of Hunan Province, at downstream of Zheshui River - the secondary tributary of Xiangjiang River. It is a middle scale power station, mainly engaged in power generation. Construction of the Project started in 1992 and accomplished in 1995. The total storage capacity is 14.2million m3, concrete double curvature thin arch dam, with crest height 65m. It is one of the five circle center ultra thin arc dams by adopting full stress optimization design in China at the earliest time, with thickness & height ratio of 0.128. It has one of the thinnest arc-dam in China. It is diversion-type ground power house, with maximum head of 182m and installed capacity of 32MW (4×8MW).