Core Points - The Shaanxi Dongzhuang Water Conservancy Hub Project, the only large-scale water conservancy project in China with water diversion and sediment regulation functions, has successfully completed the full-line concrete pouring of its dam ahead of schedule by 8 months [1][3] - This project is part of the 172 major water-saving and water supply projects identified by the State Council and is located in the Jinghe River Valley in Lintong County, Shaanxi Province [3][5] - The project features a concrete double-arch dam structure with a height of 230 meters, a total reservoir capacity of 3.276 billion cubic meters, and a power station with an installed capacity of 110,000 kilowatts [3][5] Engineering Challenges and Innovations - The construction faced challenges such as narrow valley conditions, harsh weather, and complex operations, which were addressed using advanced techniques like rapid excavation of steep slopes and uncoated heavy solidification grouting [5] - The use of three 30-ton cable cranes and an intelligent temperature control system helped achieve multiple records in excavation, pouring, and dam elevation speed, reducing the linear construction period by 3 months [5] Future Impact - Upon completion, the project will enhance flood control standards in the lower Jinghe River from a 10-year return period to a 20-year return period, and will reduce the flood risk of the Weihe River from a 100-year return period to a 50-year return period [7]