白鹤滩水电站

白鹤滩水电站 Baihetan Hydropower Station for the lower reaches of the Jinsha River four water lift of Wudongde, Baihetan, Xiluodu and Xiangjiaba in second steps, the dam is located in the territory of Sichuan province and Ningnan County Yunnan province Qiaojia County, upstream from the Qiaojia county about 41km, about 182km from the Wudongde dam; downstream from Xiluodu Hydropower Station is about 195km. From the city of Yibin River mileage of about 380km. The dam site controls the basin area of 430 thousand and 300 km, accounting for 91% of the basin area above the Jinsha River. Station from Kunming highway mileage 306km, to Chongqing, Chengdu, Guiyang distance is around 400km, distance to Guangzhou is about 1150km, the linear distance to Wuhan in Central China is about 1200km, to the east area of Shanghai straight-line distance of about 1850km. According to a brief report of "comprehensive planning of the Yangtze River Basin (1990 Revision)" on the project requirements, considering the characteristics of the project itself and the "west to East" in the strategic position, determine the development task of Baihetan Hydropower Station is mainly for power generation, flood control and care, and promote local economic and social development people out of poverty and immigration. After the completion of the project, there are also comprehensive utilization benefits such as sand storage, development of navigation in the reservoir area and improvement of navigation conditions in the lower reaches. It is one of the backbone power supply points for "west to East power transmission". Baihetan Hydropower Station installed capacity of 14000MW, ensure the output of 5500MW, the average generating capacity of 64 billion 95 million kW h, the dry period (12 ~ May) the generating capacity of 30 billion 265 million kW h, is the Jinsha River hydropower development backbone project, following the Yangtze River Three Gorges hydropower station and Xiluodu hydropower station after the ten million kW giant hydropower project and after the completion of the main power supply in East China power grid, central China Power Grid and southern power grid, and taking into account the local power grid electricity needs. At the same time, can increase the Xiluodu, Xiangjiaba, Three Gorges, Gezhouba Dam cascade hydropower stations annual generating capacity of 2 billion 430 million kW h, and can increase the downstream cascade dry period (12 ~ May) the generating capacity of 9 billion 210 million kW h, significantly improve the downstream of the cascade power quality, generating huge benefits. The normal water storage level of Baihe hydropower station is 825m cubic meters. The total storage capacity of the reservoir is 20 billion 600 million cubic meters. The storage capacity is 10 billion 400 million cubic meters, and the storage capacity of the flood control system is 7 billion 500 million cubic meters. Baihetan Hydropower Station, 3D effect graph of Baihetan Hydropower Station Hub hub from the dam, flood discharge and energy dissipation of the main building facilities, water diversion and power generation system. A concrete hyperbolic arch dam crest elevation of 834m, the maximum dam height of 289m. The flood discharge structure consists of 6 surfaces of the dam body, 7 deep holes, a water cushion pond behind the dam, and 3 unconfined flood discharge straight holes on the left bank. Diversion tunnel using single shaft hole layout, layout of tail water system using 2 machines share a tailrace tunnel, the layout of the 4 sides of tailrace tunnel, the left and right with 3 combined with 2 diversion tunnel layout. 7 1000MW vertical hydro generators are arranged in the underground powerhouse of the left and right banks. The total construction period is 144 months. The scope of land requisition for the construction of Baihe hydropower station includes the influence scope of reservoir inundation, the scope of land requisition for the construction of key projects and the scope of land expropriation in new town. After investigation, the Baihetan Hydropower Station construction land involving six counties of Sichuan, Yunnan two provinces (regions) 1 Industrial Parks (Sichuan Ningnan County, Huidong County; Yunnan Qiaojia County, Huize County, Dongchuan District, Tangdian Industrial Park, Luquan county) 39 townships and 110 villages along the Yangtze River region. Reservoir area economy is backward, people's living standard is low, poverty is big, among them, Yunnan and Qiaojia are state-level poverty counties, forming great contrast with the level of economic development of the whole country. The total number of immigrants in the planning year is 110296, of which 3280 are in the construction area