摘要
锦屏二级水电站导流隧洞靠近河床,底板高程低于河床枯水位,岩石破碎,地质条件复杂,地下水丰富。而且导流隧洞是大江截流的控制性工程,工期极为紧张。施工过程中,根据工程特点,采取了增加施工通道减少干扰、优化塌方处理方案、优化边坡支护方案、优化出口设计方案、加强进出口段洞内支护方案、增强先进施工设备投入等一系列措施,加快了施工进度,最终提前1d实现导流目标。
The bottom plate of diversion tunnel near to river bed in Jinping Second Cascade Hydropower Station is lower than low water level of river bed. Geological condition is very complex such as broken stone and rich groundwater. Because diversion tunnel is the key engineering in river closure, construction period is very tight. During construction of the Jinping Second Cascade Hydmpower Station, some measures are taken to speed up construction schedule such as adding construction mad to reduce interference, optimizing collapse treatment scheme and slope support scheme and exit design scheme, strengthening tunnel support scheme of entrance and exit segments, buying developed construction equipments. The diversion tunnel has been complete 1 day ahead of schedule.
出处
《施工技术》
CAS
北大核心
2009年第11期118-121,共4页
Construction Technology
关键词
水电站
导流隧洞
塌方
技术方案
优化
hydropower station
diversion tunnel
collapse
technology scheme
optimize
