摘要
溪洛渡水电站导流隧洞按左、右岸各3条对称布置,其中1号、2号、5号、6号导流洞与尾水洞结合,过流断面均为,18m×20m(宽×高)的城门洞形,开挖断面最大达21.60m×23.60m,加之缓倾角层间、层内错动带对隧洞顶拱围岩稳定性不利,隧洞工作条件复杂,实施大洞径的导流隧洞并形成永久尾水洞的设计,对设计和施工技术均提出了更高的要求,本文对此进行了介绍。
Xiluodu Hydropower Station is the largest one on the Jinshajiang river. 3 diversion tunnels symmetrical arrangement in each abut ment, in which No. 1, No. 2, No. 5, No. 6 diversion tunnel are combined with the tailrace tunnel. Each tunnel has a flow cross - section of 18m× 20m（width x height）, the largest excavated section reaches 21.60m ×23.60m. Besides the low angle interlayer- intraformational shear zones endanger the tunnel crown surrounding rock stability, the tunnel working condition is complicated the design and construction of large-diameter diversion tunnels call for high requirements of design concept and technology.
出处
《水电站设计》
2009年第1期4-7,16,共5页
Design of Hydroelectric Power Station
关键词
导流隧洞
尾水隧洞
设计
内力分析
溪洛渡水电站
diversion tunnel
tailrace tunnel
design
inner force analysis
Xiluodu Hydropower Station
