Navigation:Home >> Business >> Tunnel And Rail
Dalian bay cross sea traffic engineering caisson t
Published:2018/2/5 9:47:11

The Dalian Bay immersed tube tunnel is a main part of the Dalian bay cross sea traffic project. It runs through the standard of two way eight Lane urban expressway, which runs through the Huang Haice Dalian Bay area, Dalian, Liaoning. The design speed is 80km/h. The total width of immersed tube structure section 43.4m, driving hole single hole span of 17.55m, belonging to the width of the structure first in Asia and third in the world, the world's first single hole span large span tunnel. The total length of the tunnel is 5140m, and the immersed tube section of the sea is 3745m, the second long immersed tunnel in the world, second only to the harbour Zhuhai Macao submarine immersed tunnel in Hong Kong. Sinking the maximum depth of nearly 32m, the largest trench excavation depth 19m, before the hard soft stratum, hydrological and geological conditions are complex, the world will be one of the most challenge of immersed tunnel engineering.