碧水安澜铸丰碑——记“共和国水电长子”刘家峡水电站

Core Viewpoint - Liujiashan Hydropower Station, a significant milestone in China's hydropower development, has evolved over 67 years, contributing to national energy security and ecological protection while showcasing innovation and resilience in overcoming challenges [1][3][5]. Group 1: Historical Development - The construction of Liujiashan Hydropower Station began on September 27, 1958, amidst challenges of energy shortages and natural disasters, marking it as the first key project in the comprehensive planning for the Yellow River [3]. - The project faced skepticism from foreign experts regarding the feasibility of building a dam on the Yellow River, yet it was successfully completed through the dedication and hard work of thousands of builders [3][5]. - The hydropower station achieved significant milestones, including the first complete operation of five units by December 18, 1974, and the overall completion on February 4, 1975 [3][5]. Group 2: Technological Innovations - Liujiashan Hydropower Station is recognized for its technological advancements, being the first large-scale hydropower station in China to conduct its own surveying, design, equipment manufacturing, construction, and commissioning [5]. - The station developed the "stratified flow" sediment discharge technology, which significantly improved sediment management and reduced wear on equipment, discharging over 10 million tons of sediment from 1973 to 1989 [7][9]. - The recent construction of the Taohekou sediment discharge tunnel and expansion project has enhanced sediment management efficiency, increasing sediment discharge during stratified flow periods from 60% to 95.3% [9]. Group 3: Environmental and Economic Impact - Liujiashan Hydropower Station has played a crucial role in ecological restoration, planting over 1 million trees and greening an area of 3,382 acres, transforming the surrounding environment [15]. - The station has established a comprehensive system for water quality monitoring and management, investing over 8 million yuan in mechanized cleaning operations, which has improved local tourism and created over 15,000 jobs [17]. - The hydropower station contributes to the "dual carbon" goals by balancing the energy supply from renewable sources, thus ensuring grid stability and supporting the development of a new energy system in Gansu [11][13].