北京二道河水库开工建设 2030年底将建成全市最高大坝

Core Viewpoint - The construction of the Erdao River Reservoir in Beijing's Fangshan District is a critical project aimed at enhancing flood control capabilities in the region, with a total capacity of 76.32 million cubic meters and expected completion by the end of 2030 [1][2]. Group 1: Project Overview - The Erdao River Reservoir is designed to mitigate flood risks by controlling the peak flow of 5,300 cubic meters per second, effectively managing 75% of the mountainous watershed area of the Dashi River [2]. - The reservoir will feature Beijing's first roller-compacted concrete gravity dam, standing at 100 meters, making it the tallest dam in the city [1]. Group 2: Historical Context and Need - The Dashi River basin has a history of severe flooding, notably during the 2012 "7.21" flood and the record-breaking flood in July 2023, which significantly impacted local communities [1]. - The absence of controlling hydraulic projects in the Dashi River basin has led to substantial downstream impacts from upstream water flow, highlighting the necessity for the reservoir [2]. Group 3: Technological and Strategic Aspects - The construction will incorporate advanced technologies such as intelligent compaction and temperature control to ensure high-quality dam construction [2]. - Post-construction, a digital twin platform will be established for more scientific and intelligent management of the reservoir's operations [2]. Group 4: Broader Implications - The project is part of a larger initiative by Beijing's water management authorities to accelerate the development of major hydraulic engineering projects, enhancing the flood control infrastructure in the capital [2].