The Pandaoling tunnel is the longest non-pressure diversiontunnel of the main channel from Datong river to water irrigation project at Qinwangchuan region.
盘道岭隧洞是引大入秦灌溉工程总干渠上最长的无压引水隧洞。
2
The diversiontunnel of Geheyan Project on the Qingjiang river is one of successfully excavated large-scale underground cavities in the carbonate rock regions in China at present.
清江隔河岩水利枢纽导流隧洞是我国目前在碳酸盐岩地区开挖大跨度地下洞室的成功工程之一。
3
The Pandaoling tunnel is the longest non-pressure diversiontunnel of the main channel of theDatong River to Qinwangchuan region water transferring irrigation project.