The dam is a composite section earth dam with rolling clay core wall, with crest elevation of 139.2m, maximum dam height of 49.2m, dam length of 1366.7m, maximum dam height of the second dam of 3 1.4m, and dam length of 327.9m The crest of both dams is equipped with breakwater walls, with dam height of/kloc. The third dam is a homogeneous earth dam with a crest elevation of 140.7m, a maximum dam height of 10m and a dam length of 85m. The main spillway is a straight chute spillway with a sill elevation of 125m and five radial gates of 10.4m×7m. The first emergency spillway is a vacuum weir with crest elevation 134m and front edge length 180m. Article 2 The emergency spillway is a broad-crested weir with crest elevation 130m and front edge length 150m. There is a self-destructive earth dam at the top of the weir, and the elevation of the dam top is 139m. The elevation of the bottom plate at the entrance of the water conveyance tunnel is 94m, the diameter of the tunnel is 6.5m, the length of the main tunnel is 25 1m, two high-pressure access doors are set at the entrance, and one tunnel and two branch tunnels are set at the end of the main tunnel. At the end of a hole, there is a hydropower station with an installed capacity of 32,000 kilowatts. Both tunnels are flood discharge tunnels, and there are two flat gates at the exit. The hub project has completed 8.742 million cubic meters of earthwork, 2.245 million cubic meters of stonework, 6.5438+0.2 million cubic meters of concrete, 278 1t of steel, 0/9249 t of cement and 80,000 cubic meters of wood. The project started in April of 1954 and was completed and put into use in September of 1958.

Since the reform and opening up, Dahuofang Reservoir, with the goal of building a harmonious reservoir and taking advanced education as an opportunity, has carried out spiritual civilization construction in all aspects of production and operation, and achieved good results in increasing cohesion at home, increasing attraction at home, improving centripetal force and developing productivity. New breakthroughs have been made in the construction of three civilizations, which has made great contributions to Liaoning's economic development and the revitalization of old industrial bases.

/kloc-for 0/0 years, the water quality of the reservoir has basically remained at the national second-class water standard. In order to fundamentally solve the problem of water shortage, the state approved the first phase of Dahuofang Reservoir water conveyance project in 20001year and the second phase in 2005. The water conveyance project of Dahuofang Reservoir has an annual regulated water volume of 654.38+0.8 billion cubic meters, with a total investment of 654.38+0.03 billion yuan, which will solve the industrial and domestic water consumption of six cities in central Liaoning, namely Fushun, Shenyang, Liaoyang, Anshan, Yingkou and Panjin. Dalian will take water from Fushun Dahuofang Reservoir from Anshan water intake, and construction is expected to start in 2007. The second phase of the project is the longest water conveyance distance, the largest water conveyance capacity and the most complicated water supply mode in China. The total design period is 42 months, and the estimated investment of the project is 4.906 billion yuan.

The water conveyance tunnel of Dahuofang Reservoir in Liaoning Province is 8m in diameter and 85.3km in continuous length, which is the longest continuous tunnel in the world. Construction began in 2003. This project has the advantages of long tunnel length, large cross-section, long driving distance by single machine, large slope of branch tunnel and bad geology (faults, caves, water gushing, etc.). ). This project adopts tunnel boring machine for construction, and continuous belt conveyor is used for slag discharge. It was completed in 2008 and officially completed in September 2009.