责任编辑： 郭栩汝 10月30日上午，随着导流洞闸门缓缓落下，我省"十四五"时期启动的首个国家级重大水利工程——袁湾水库 正式下闸蓄水，标志着袁湾水库开始发挥防洪减灾效益，淮河上游防洪工程治理翻开崭新一页。 袁湾水库工程自2022年3月正式开工，同年10月13日成功实现截流，全面转入主体工程施工阶段。今年3月31 日，工程建设再传捷报——土坝主坝提前45天填筑至设计高程，大坝顺利封顶，为下闸蓄水奠定了坚实基 础。 作为国家150项重大水利工程项目之一，袁湾水库工程总投资55.16亿元，是一座以防洪为主，结合供水、灌 溉，兼顾发电、改善生态等综合功能的大（2）型水库。这座横亘在光山县潢河上游的"巨龙"，总库容达2.43 亿立方米，控制流域面积480平方公里，它的建成将改变淮河上游的防洪格局。 "袁湾水库是淮河上游防洪工程体系的关键一环。"袁湾水库工程建设方负责人表示，水库建成后，可与淮河 上游现有大型水库及规划工程联合运用，使淮河干流王家坝以上圩区的防洪标准由10年一遇提高到20年一 遇，将淮河干流淮滨站20年一遇设计流量控制在7000立方米每秒以内，显著提升淮河流域防洪保安能力。 除了防洪这一首要功能，袁湾水 ...

Core Points - The Yuanwan Reservoir is a key project in the national water conservancy initiative, aimed at enhancing flood control and water supply in the Huai River basin [1][2] - The construction of the reservoir is nearing completion, with significant milestones achieved, including the completion of the dam and the installation of key infrastructure [2] - The reservoir is designed to hold 2.43 billion cubic meters of water, significantly improving flood control standards from once every ten years to once every twenty years [3][4] Group 1: Construction and Engineering - The Yuanwan Reservoir is part of 150 major national water conservancy projects, serving as a critical component of the Huai River flood control system [1] - The construction process includes a rigorous quality assurance system, ensuring that all materials and processes are collectively recognized and documented [1] - The dam's flood control measures have been tested during the initial flood season, demonstrating its structural integrity and emergency response capabilities [3] Group 2: Flood Control Measures - Real-time data integration from the reservoir and upstream hydrological stations enhances flood management and response [3] - The reservoir has a well-stocked supply of emergency materials and equipment, ensuring readiness for flood events [3] - The monitoring of the dam's settlement during heavy rainfall has shown that it remains within design limits, confirming the quality of construction [3] Group 3: Benefits and Impact - The reservoir will provide 50.4 million cubic meters of water annually for industrial and domestic use, and irrigate 116,000 acres of farmland [4] - It is expected to generate 2.74 million kilowatt-hours of clean electricity, benefiting local communities [4] - The reservoir's capacity will help manage the flow of the Huai River, contributing to regional water security and disaster prevention [3][4]