白鹤滩水电站左岸尾水隧洞改建施工  

Reconstruction of Tailrace Tunnel on Left Bank of Baihetan Hydropower Station

作　　者：周涛 曾理 彭正良 张俊学 ZHOU Tao;ZENG Li;PENG Zheng-liang;ZHANG Jun-xue(POWERCHINA SINOHYDRO ENGINEERING BUREAU 14 CO.,LTD.,Kunming 650041,China)

机构地区：[1]中国水利水电第十四工程局有限公司,云南昆明650041

出　　处：《云南水力发电》2022年第12期143-148,共6页Yunnan Water Power

摘　　要：白鹤滩水电站左岸2号~4号尾水隧洞采用了与导流洞结合布置的设计方案,尾水隧洞和导流洞结合段分两期施工,具有施工环境复杂、相邻标段之间干扰大和工期紧张的特点。总结介绍了白鹤滩水电站左岸尾水隧洞改建施工程序、通道布置及其主要施工方法。通过采取双施工通道布置、统筹混凝土浇筑顺序、调整二期改建封堵体浇筑层高、优化冷却水管布置以及高臂钻配合台车灌浆等施工措施,满足了调整后的工程总进度计划目标要求。No. 2-4 tailrace tunnel on the left bank of Baihetan Hydropower Station adopts the design scheme combined with diversion tunnel. The combination section of tailrace tunnel and diversion tunnel is constructed in two stages, featuring complicated construction environment, large interference between adjacent bid sections and tense construction period. This paper summarizes and introduces the reconstruction construction procedure,channel arrangement and main construction methods of tailrace tunnel on Left Bank of Baihetan Hydropower Station. By adopting construction measures such as arrangement of double construction channels, overall planning of concrete placement sequence, adjusting the height of the cast layer of the second stage reconstruction plug body, optimizing the arrangement of cooling water pipes and grouting of high arm drill with trolley, etc., the target requirements of the adjusted general project schedule are met.

关 键 词：白鹤滩水电站 尾水隧洞 改建 施工技术 

分 类 号：TV554[水利工程—水利水电工程]