China Activity Report PDF
The Shilin tunnel on Yungui Railway was completed in December 2013.
With total length of18,208m,it is the longest single tube double track tunnel in China and characterized by karst,sinkhole, fault, water bursting etc.
The breakthrough of the left tube of West Qinlin tunnel wasachived in November 2013, which is the second longest tunnel with 28.236km and dirven byTBM+DB method.
The element E7 of immersed tunnel of HZM link project was succesfullyimmersed and connected in December 2013.
The significant projet in planning is the Bohai StraitCrossing Project with 3 alternatives: bridge option, tunnel option and bridge+tunnel option.
Intunnel option the tunnel length will be 125km with the investment estimation of 220 billion RMB.
By the end of 2013, the railway tunnels in operation in China Mainland are 10,100 with a totallength of about 7,600 km.
The tunnels in construction are about 3,800 with a total length of about7,300 km; the tunnels in planning are 5,100 with the total length of about 10,800 km.
Thecompleted and opened traffic highway tunnels are 10,022 with a total length of 8,053 km, of whichthe long tunnels are 441 with a total length of 1,985 km.
65 urban subway lines have been opened in16 cities,with the total mileage of 1,940 km.
60 subway lines are currently under construction in 26cities, with the total mileage of 1,543 kilometers.
In addition, the construction of over 1,000 kmlong tunnels and underground works in hydropower, mining and other sectors are completed in eachyear.