摘要
向家坝工程右岸地下电站尾水管扩散段开挖体形巨大,唯一的施工通道位于其底部,存在约24 m的高差,使其顶部开挖困难,同时,主厂房施工关键线路对其提出了工期要求。基于工程实际情况,采用洞内"折线形楼梯"爬坡方案解决以上问题,体现出地下工程施工组织"平面多工序、立体多层次"的思想精髓,在工程所处边界条件下不失为最优方案,其经验可供类似工程参考。
The draft tube diffuser in the right bank underground power station of Xiangjiaba Project is very huge.The only construction access is located at the bottom,and there is a height difference of about 24m,so the top excavation is very difficult,and the construction period is strictly limited.The program with ＂broken-lined stairs＂ was adopted to solve the problem in the excavation of draft tube diffuser.The experiences can be as reference for other similar project.
出处
《水力发电》
北大核心
2010年第4期50-53,共4页
Water Power
关键词
地下工程
开挖
方案研究
向家坝工程
underground engineering
excavation
program study
Xiangjiaba Project
