新闻
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China

白鹤滩水电站主体工程全面建设 揭秘在建规模世界第一大水电站

2017-08-04 06:07:56   中国青年网

白鹤滩被称为中国乃至世界上难度最大的水电工程之一。中国三峡集团党组成员、副总经理樊启祥介绍,一方面白鹤滩水电站主要特性指标均居世界前列:拱坝坝高289米,居世界第三;300米级高坝抗震参数居世界第一;地下洞室群规模居世界第一。另一方面,水电站坝址的地质环境复杂:峡谷地形不对称、岩性复杂、高地震烈度等。在如此复杂多样的地质结构上建设“巨无霸”,其技术难度可想而知。

大坝是水电站的核心工程,白鹤滩为双曲拱坝,大坝基础为柱状节理玄武岩,很容易松弛、碎裂。如何保障大坝的坚固?樊启祥介绍,三峡集团通过多年的专题研究,找到控制其松弛变形的工程措施。从建设实际情况看,这一技术难关基本攻克。

地下洞室群是白鹤滩水电站攻克的另一个难关。据了解,地下洞室数量众多,且相互交错,洞室开挖量达2500万立方米,其中电站厂房洞长438米,顶拱跨度34米,高88.7米,为世界已建跨度最大地下厂房;8个圆筒式尾水调压室直径43—48米,为世界已建跨度最大调压室。

建造这一“地下迷宫”并非易事。专家称,这项工作就像是在一个奶油夹层的大蛋糕里掏一个洞的同时,又要保证外部不变形。设计单位采用三维设计技术、数值仿真技术,解决超大地下洞室布置、施工组织和工程安全等难题,取得多项技术创新。

单机容量世界第一,水电设备完全自主创新

发电机组是水电站的核心设备,在白鹤滩水电站的各项特性指标中,“百万机组”备受瞩目。据介绍,水电站将采用达100万千瓦水轮发电机组,单机容量居世界第一。

百万机组标志着我国水电设备的设计和制造取得质的突破,具有许多优势。中国三峡集团机电工程局局长张成平介绍,首先,提高机组容量能够进一步促进电网稳步运行;其次,机组容量越大,能量转化效率越高;第三,白鹤滩水电站位于高山峡谷,大容量机组可以减少单机组台数,优化工程布局。

世界上能够满足安装百万机组的水电站并不多。张成平介绍,从2006年开始,三峡集团牵头国内设计单位、科研院所和设备制造厂家,攻克发动机散热、新型材料等系列技术难关,实现了百万机组的完全自主创新。

上一页2/2下一页
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China

相关阅读

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170804/31033905_2.html
Server: cms-8-251
Date: 2024/12/29 02:34:42

Powered by China
China