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从“不可能”到“典范” 中国电建华东院打造句容抽水蓄能电站技术创新样本
Core Viewpoint - The successful commissioning of the Jurong Pumped Storage Power Station marks a significant achievement in overcoming complex geological challenges, showcasing innovative engineering solutions in the hydropower sector [1][3][9]. Group 1: Project Overview - The Jurong Pumped Storage Power Station has a total installed capacity of 1.35 million kilowatts, consisting of six reversible turbine generator units of 225,000 kilowatts each [1]. - The project took nearly six years from dam construction to water storage, with a maximum dam height of 182.3 meters, equivalent to a 60-story building [5]. - The normal water storage capacity is 17.12 million cubic meters, comparable to 1.2 times the volume of West Lake [5]. Group 2: Engineering Challenges - The project faced significant challenges due to the complex geological conditions in Jiangsu Province, which lacks favorable terrain for pumped storage power stations [3][6]. - Innovative solutions included raising the upper reservoir to create a water head difference, thus overcoming geographical limitations [3]. - The construction involved a massive fill volume of 30 million cubic meters, which is 6 to 10 times larger than typical pumped storage projects [5]. Group 3: Technological Innovations - The project introduced several industry-first technologies, such as a combined seepage prevention system using asphalt concrete panels and geotextile membranes [6][8]. - The use of TPO geotextile membranes, which have a yield elongation rate of 30%-40%, significantly outperforms conventional HDPE membranes [8]. - The underground powerhouse features a fully enclosed seepage prevention curtain and a large-diameter water intake ball valve, the largest of its kind designed domestically [8]. Group 4: Environmental Impact - The power station is expected to generate 1.35 billion kilowatt-hours of electricity annually, saving 140,000 tons of standard coal and reducing carbon dioxide emissions by 349,000 tons [11]. - It enhances the power grid's ability to manage peak and off-peak electricity demands, addressing supply shortages in Jiangsu [11]. Group 5: Industry Significance - The successful operation of the Jurong Pumped Storage Power Station serves as a model for future projects in complex geological conditions, providing valuable experience in dam deformation control and seepage technology [9]. - The project reflects the technical strength and engineering experience of China Electric Power Construction Group's East China Institute, contributing to national energy transition and regional development [11].