China's First Large Elliptical Semi-Underground Powerhouse for Pumped Storage Delivered
L'essentiel
- China's first ultra-large rock-plug hybrid pumped storage power station, the Zhejiang Huadian Quzhou Wuxijiang 298MW hybrid pumped storage power station, has officially delivered its semi-underground powerhouse.
- The station will enhance Zhejiang's power grid capacity and complement renewable energy sources.
Résumé généré par IA
Pourquoi c'est important
The Zhejiang Huadian Quzhou Wuxijiang 298MW hybrid pumped storage power station is a significant infrastructure project in China, featuring the country's first ultra-large rock-plug type, largest elliptical vertical shaft, and semi-underground powerhouse. The project aims to enhance the power grid's capacity and support renewable energy integration.
中新网西宁6月3日电(祁增蓓)记者3日从中国水利水电第四工程局有限公司(简称“水电四局”)获悉，日前，中国首座超大岩塞式混合抽蓄最大椭圆竖井半地下厂房——浙江华电衢州乌溪江298兆瓦混合式抽水蓄能电站厂房正式交付，机电设备安装工程同步开工建设。
乌溪江混合式抽水蓄能电站装机容量298兆瓦，主要承担浙江电网调峰、填谷、储能、调频及应急备用等功能。水电四局负责承建项目引水、半地下厂房、尾水、启闭机房及河道疏浚等工程。
5月20日，航拍浙江华电衢州乌溪江298兆瓦混合式抽水蓄能电站半地下厂房。 水电四局供图
项目核心竖井式主厂房既是中国首座、目前最大的椭圆形半地下厂房，亦是中国东部地区唯一全程处于柱状节理围岩的水电工程。该厂房长轴49.3米、短轴35.3米、深度70.7米，地质条件特殊、施工技术难度大。
针对工程特大断面围岩稳定性差、支护周期长、出渣效率低等施工难点，项目团队通过优化爆破参数、升级锚索注浆工艺，保障施工安全与质量。并创新采用双导井并联溜渣系统，颠覆传统单井出渣模式，将单循环出渣量由800立方米提升至1540立方米，出渣效率提升近一倍，有效缩短施工周期。
据悉，该电站投运后将接入浙江省220千伏电网，有效提升该省电网调峰填谷能力，与区域风电、光伏项目形成发电互补，助力消纳新能源。(完)
À surveiller
Perspective IA — des possibilités, pas des certitudes
The power station will improve Zhejiang's power grid stability and renewable energy absorption.
Très probable · Court terme
The equipment installation engineering will commence.
Très probable · Immédiat
Questions ouvertes
- What is the exact timeline for the full operationalization of the power station?
- What are the specific challenges anticipated during the equipment installation phase?
- How will the power station's integration with regional wind and solar projects be managed?
- What are the long-term environmental impacts of the station's operation?
