叶巴滩水电站

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叶巴滩水电站首批坝段浇筑到顶 预计年底全线封顶
Si Chuan Ri Bao· 2025-10-05 01:36
该工程主要建筑物包括混凝土双曲拱坝、泄洪消能设施和引水发电系统。大坝最大坝高217米,共 计27个坝段,混凝土浇筑设计总量约263万立方米。面对工期紧张、任务繁重等挑战,施工团队推动施 工工艺标准化,借助缆机轴线与大坝三维模型优化吊运路径,创下日浇筑6493.5立方米、月浇筑13万立 方米的施工纪录。目前,大坝工程累计浇筑881仓、254万立方米混凝土,已完成总浇筑量的96.6%。 叶巴滩水电站位于甘孜州白玉县与西藏自治区昌都市贡觉县交界处,水库总库容达10.80亿立方 米,总装机容量2240兆瓦,是金沙江上游川藏段装机容量最大的水电站。电站全面投运后,预计年发电 量达102.05亿千瓦时,每年可节约标准煤399万吨、减少二氧化碳排放737万吨,对推动区域经济协同发 展、助力国家实现"双碳"目标具有重要战略意义。(记者 李欣忆) 近日,国内在建海拔最高双曲拱坝电站——华电金上叶巴滩水电站首批坝段浇筑至坝顶设计高程 2894米,大坝主体结构施工取得阶段性胜利,预计年底全线封顶。 ...
我国在建海拔最高双曲拱坝电站首批坝段浇筑到顶
Zhong Guo Xin Wen Wang· 2025-09-29 13:48
中新网成都9月29日电 (张鹏 刘季松)9月29日,我国在建海拔最高双曲拱坝电站——华电金上叶巴滩水 电站首批坝段浇筑至坝顶设计高程2894米,标志着大坝主体结构施工取得阶段性成果,向着2025年底首 批机组投产发电目标稳步迈进。 大坝是水电站枢纽工程的核心建筑物,承担着挡水与泄洪的重要任务。叶巴滩水电站总装机容量224万 千瓦,坝型为混凝土双曲拱坝,最大坝高217米,坝顶弧长582米,共分为27个坝段,布置有2个导流底 孔、4个泄洪深孔和5个泄洪表孔。 叶巴滩水电站大坝设计混凝土浇筑总量约263万立方米(含置换块、贴脚等),采用4台30吨平移式缆机进 行浇筑。自2022年8月启动首仓混凝土浇筑以来,华电金沙江上游开发有限公司叶巴滩分公司推行"领导 挂帅、中层挂点、专责推进"的三人分工制及"片长制"管理模式,严格执行"日协调""一仓一总结"机 制,持续优化施工组织,推行"两浇、两备、四准备"措施,实现转仓无缝衔接,大幅提升大坝浇筑效 率,创下最高日浇筑6493.5立方米、月浇筑13万立方米的施工纪录,推动大坝混凝土浇筑工期提前6.4个 月。截至目前,已连续浇筑37个月,累计浇筑254万方混凝土,完成总浇筑量的 ...
我国在建海拔最高双曲拱坝电站首台机组转子成功吊装
Zhong Guo Xin Wen Wang· 2025-06-16 08:20
Core Points - The successful installation of the rotor for the first unit (Unit 4) of the Yebatang Hydropower Station marks the full entry into the assembly phase of the project [1][2] - The Yebatang Hydropower Station, located at an average altitude of 3000 meters, is a significant project under China's 14th Five-Year Plan, featuring a dam height of 217 meters and a total installed capacity of 2.24 million kilowatts [2] - The rotor has a diameter of 12.6 meters, a height of 3.2 meters, and a total lifting weight of 1085 tons, making it the heaviest core component in the installation process [2] - The project aims to achieve the first batch of units to be operational by the end of this year, with an average annual power generation of 10.205 billion kilowatt-hours, equivalent to saving 3.99 million tons of standard coal and reducing carbon dioxide emissions by 7.37 million tons [4] - The clean electricity generated will be transmitted to central China through the Jinshang to Hubei ±800 kV DC transmission project, contributing to the country's green and low-carbon energy transition [4]
38.10米,我国在建海拔最高双曲拱坝电站取出世界最长“芯”
Xin Jing Bao· 2025-05-12 08:10
新京报讯 据"西藏发布"微信公众号消息,5月11日,我国在建海拔最高双曲拱坝电站——华电叶巴滩水 电站大坝成功取出一根长度38.10米的混凝土芯样,打破了国内外同类坝型大坝取芯纪录,创造世界新 纪录。 叶巴滩水电站场址所在地昼夜温差明显,极端气温条件下,会出现最高温度达37.1℃,最低温度达零下 23.5℃的状况,这种气候条件下,混凝土容易产生温度裂缝。项目团队联合院士专家、高校开展科研攻 关,通过开发智能浇筑、智能温控、智能灌浆等数字管理平台,应用"全坝中热水泥混凝土施工温控技 术""特高拱坝大体积混凝土质量控制技术""冬季浇筑保温综合蓄热法"等技术,并通过优化施工组织实 现转仓无缝衔接,在国内高海拔寒冷地区首次实现大坝混凝土全年连续浇筑。 据悉,叶巴滩水电站位于西藏自治区贡觉县与四川省白玉县交界的金沙江上游干流上,海拔近3000米, 总装机容量224万千瓦,最大坝高217米,混凝土浇筑总量达251万立方米,是国家"十四五"规划的重大 工程、"西电东送"接续基地和西南水电基地建设的重大工程,也是金沙江上游川藏段装机规模最大电 站,首批机组预计将于今年底投产发电。电站全面建成后,多年平均发电量达102.05亿 ...
金沙江上游叶巴滩水电站取出逾38米混凝土芯样
Xin Hua She· 2025-05-11 07:03
Core Viewpoint - The Yebatan Hydropower Station, located in the upper reaches of the Jinsha River, has successfully extracted a concrete core sample measuring 38.10 meters, setting a record for similar dam types in China [1][2]. Group 1: Project Overview - The Yebatan Hydropower Station has a total installed capacity of 2.24 million kilowatts and is being developed by China Huadian Corporation [2]. - The dam has a maximum height of 217 meters, making it the highest hyperbolic arch dam under construction in China [2]. - The project is part of the national "14th Five-Year Plan" and serves as a significant project for the "West-East Power Transmission" initiative [6]. Group 2: Construction and Quality Control - The core sample extraction was part of a random sampling process during the dam's construction, spanning 13 pouring units and 12 horizontal construction seams [2]. - The extracted core sample was found to be complete, smooth, and dense, indicating excellent inter-layer bonding and uniform aggregate distribution [2][4]. - Advanced technologies such as intelligent pouring, temperature control, and quality control techniques were employed to mitigate the risk of cracking due to significant temperature fluctuations at the site [4]. Group 3: Environmental Impact and Energy Production - Once fully operational, the Yebatan Hydropower Station is expected to generate an average annual electricity output of 10.205 billion kilowatt-hours [6]. - The project is projected to save 3.99 million tons of standard coal annually and reduce carbon dioxide emissions by 7.37 million tons [6].