Tunnelling in Germany: Statistics 2009/2010, Analysis and Outlook

1 Proportion of the various types of tunnel use (Table 1)
a) related to the driven length b) related to the excavated volume

Photo: Arge

2 Excavation and concreting work on the North-South City Line in Cologne

Photo: Arge

3 Structure of transportation tunnel construction in Germany at the turn-of-the-year 2009/2010a) Underground, urban and rapid transit systems b) total transportation tunnel construction

4 Length-related data on trenchless and cut-and-cover construction methods in conjunction with transportation tunnels under construction at turn-of-the-year

5 Course of awards for transportation tunnel construction during last 20 years

6 Contract-related and length-related data relating to clients for transportation tunnels constructed last 20 years

7 Length-related classification according to federal states (Table 3) for planned transportation tunnel projects at the turn-of-the-year 2009/2010; with the number of registered transportation tunnel projects given in brackets

8 Length-related classification of planned transportation tunnel projects (start of construction as from 2010) according to federal states (Table 4); with the number of registered transportation tunnel projects given in brackets

Photo: GTA Maschinensysteme

9 Tunnel widening during tunnel operation

Photo: GTA Maschinensysteme

For more than 30 years, the STUVA has compiled statistics on tunnelling activities in Germany in keeping with a corresponding proposal put forward by the International Tunnelling and Underground Space Association [1].

1 Statistics on Tunnels under Construction 2009/2010

As in previous years, the STUVA also undertook a survey of current tunnelling projects in Germany at the turn of the year 2009/2010. The outcome is compiled in tabular form for the month of December 2009 and subsequently assessed. The table follows up its predecessors published for the years 1978 [2] to 2009 [3]. Only tunnels and drain/sewer structures which possess an accessible (walk-in) excavated crosssection, i.e. a clear minimum diameter of 1,000 mm or, including the pipe wall, a minimum cross-section of roughly 1 m², are listed. On the...