Abstract：
The immersed tunnel of the south extension line in Foshan is the first immersed tunnel to be built in the middle and upper reaches of an inland river, and the largest scale road-metro combined immersed tunnel. Because of the tunnel's sensitive location, adverse geological and environmental conditions, a short construction timeframe, and its complex structure, there are many technical difficulties to be solved. This paper describes the characteristics of and key techniques for the immersed tunnel of the south extension in terms of the cross section design, dry dock scheme, trench excavation, and covering of the immersed tunnel.
.Discussion of the Characteristics of and Key Techniques for the Immersed Tunnel of the South Extension Line in Fosan[J] MODERN TUNNELLING TECHNOLOGY, 2012,V49(5): 85-90
2012, Vol. 49 