人民长江Issue(20)：68-71,84,5.
乌东德水电站导流隧洞施工期支护设计
Supporting design of diversion tunnels of Wudongde Hydropower Station
饶志文 1漆祖芳 1徐唐锦 1张雨霆2
作者信息
- 1. 长江勘测规划设计研究有限责任公司 施工设计处，湖北 武汉430010
- 2. 长江科学院 水利部岩土力学与工程重点实验室，湖北 武汉430010
- 折叠
摘要
Abstract
The layout of diversion tunnels of Wudongde Hydropower Station can be described as"2 left 3 right, 4 lower 1 high-er, 4 larger and 1 smaller". Especially for No. 3 and 4 tunnels at right bank, because the upstream section is located in thin dol-omite stratum characterized as broken, fissure developed, and moreover the stratum strike intersects with the tunnel axis with small-angle, so the monitored displacement increased after the supporting construction, failures were found at arch spandrel and side wall in part of the tunnel sections. Dynamic conversion calculation are carried out for the diversion tunnel by numerical anal-ysis, based on the conversion results, comprehensive reinforced measures were taken to tackle the unstable problems, such as steel truss arch, pre-consolidated grouting, pre-stress anchor bolt, anchor bar pile and anchor cable. The reinforced effects of these measures were validated by subsequent monitoring after the excavation construction.关键词
导流隧洞/施工期/支护设计/锚索/乌东德水电站Key words
diversion tunnel/construction period/supporting design/anchor cable/Wudongde Hydropower Station分类
建筑与水利引用本文复制引用
饶志文,漆祖芳,徐唐锦,张雨霆..乌东德水电站导流隧洞施工期支护设计[J].人民长江,2014,(20):68-71,84,5.
