行走江河看中国｜智慧引领、精准调控 东庄水利枢纽“以坝御洪”护佑黄河安澜

Core Viewpoint - The construction of the Dongzhuang Water Conservancy Hub is a significant development project aimed at enhancing flood control, sediment management, and regional water supply in Shaanxi Province, contributing to the ecological protection and sustainable development of the Yellow River basin [1][3][4]. Group 1: Flood Control and Sediment Management - The Dongzhuang Water Conservancy Hub will improve flood control standards from a 10-year to a 20-year frequency, reducing the impact of 100-year floods to 50-year floods in the Weihe River downstream [3]. - The project is expected to intercept 3.051 billion tons of sediment from the Jing River and 2.5 billion tons from the Yellow River, significantly alleviating the sediment burden on the downstream waterways [3]. Group 2: Water Supply and Irrigation - Upon completion, the hub will provide an annual water supply of 435 million cubic meters to urban and industrial areas, achieving a water supply guarantee rate of 95% [4]. - The irrigation guarantee rate for the Jinghui Canal irrigation area will increase from 30% to 50%, supporting regional agricultural development [4]. Group 3: Power Generation and Environmental Impact - The hub will feature four mixed-flow generating units with a total capacity of 110 megawatts, generating an average of 285 million kilowatt-hours annually, saving 90,000 tons of coal and reducing carbon dioxide emissions by approximately 250,000 tons [4]. - The project will create a 97-kilometer long water surface area, improving local microclimates and providing better habitats for fish and migratory birds [5]. Group 4: Technological Innovations and Milestones - The planning and construction of the Dongzhuang Water Conservancy Hub have involved overcoming significant technical challenges, leading to the development of advanced systems such as digital twin technology and visual monitoring platforms [6]. - The project is recognized for several world-first achievements, including being the first high arch dam built primarily for flood control and sediment reduction [6].