摘要
由三坝一堰四洞组成的莱索托调水一期工程2004年3月竣工,年调水7.8亿m3。引水坝址平均调水比例73％。185 m高的Katse混凝土双曲拱坝为非洲最高坝,145 m高.Mohale坝为非洲最高的面板堆石坝。隧洞总长度119.6 km,最大埋深1 200 m,单洞最长45 km,全断面掘进机(TBM)施工。属跨国调水工程。
The Lesotho Highland Water Project is composed of 3 dams, one weir and four tunnels. It is completed in March, 2004. The mean ratio of diversion versus naturai annual inflows is 73%. The 185m high, double curvature concrete arch Katse Dam is the highest dam in Africa. Mo-hale Dam is the highest rock fill dam on the African Continent. The total length of the tunnels is 119. 6km, mostly excavated by TBM. the maxi-mum rock cover is l 200 m thick.
出处
《南水北调与水利科技》
CAS
CSCD
2004年第4期53-56,共4页
South-to-North Water Transfers and Water Science & Technology
关键词
莱索托调水工程
设计与施工
TBM
Lesotho Highland Water Project
design and construction
TBM
