On July 13, 2015 IL & FS Transportation Networks Limited (ITNL) celebrated the breakthrough in the last section of India’s longest road tunnel between Chenani (South End) and Nashri (North End) in the state of Jammu and Kashmir. The Chenani Nashri Tunnel Project is part of the ambitious 286 km long four-lane widening of the Jammu-Srinagar National Highway.
On July 17, 2015, the Italian construction contractor CMC and TBM manufacturer CREG signed a procurement contract of supplying two Gripper TBMs with a diameter of 3.5 m each for the LB-Greater Beirut...
The 4.8 km long Steinbühl Tunnel, which is being constructed by the shotcrete method for the Alb ascent Albaufstieg on the new railway line from Wendlingen to Ulm, will see the breakthrough celebrations of its main drives this year. With more than 86 % completed as of June 2015, it is now possible to report on the special features of the tunnelling works.
In tunnel issue 4/2015 we comprehensively informed you about the most important aspects of the 41st Annual Meeting of the International Tunnelling and Underground Space Association (ITA) and the 2015 World Tunnel Congress (WTC), held from May 22 to 27, 2015 in Dubrovnik, Croatia. In tunnel issue 6/2015 you can learn more about the activities of the 13 Working Groups the four Committees and ITA’s Young Members.
In mechanised tunnelling, the sensor system on the tunnel boring machine (TBM) and its control system (navigation) as well as surveying and precast segment production all record a great amount of varied data. The analysis, visualisation and monitoring of this data represents an important instrument for efficient control of mechanised tunnelling.
The Gotthard axis is to be extended to become a 4 metre corridor. This will assist freight traffic crossing the Alps to be relocated from road to rail. The biggest part-project of this scheme is to replace the Bözberg Tunnel with a new 2.6 km long two track tunnel.
In its first phase the Lötschberg Base Tunnel was built in abbreviated form for financial political reasons and began operating in 2007. Of the 34.6 tunnel km, 21 km in the Frutigen-Ferden section are only single-track. The BLS AG invited tenders for planning the further development of the Lötschberg Base Tunnel on August 17, 2015. The planning work is due to start in 2016. It will embrace the double-track development from Ferden–Mitholz and the complete development of Ferden–Frutigen as an option.
Based on the state treaty between Austria and former Yugoslavia dating from 1977, the Austrian and Slovenian motorway operators, ASFINAG and DARS agreed in mid-April 2015 to jointly finance and execute the complete redevelopment of the almost 7.9 km long Karawanken Tunnel on the Karawanken Motorway (A11).
In September 2015 the ASFINAG embarked on the general redevelopment of the Oswaldiberg Tunnel on the A10 Tauern Motorway. In July the Austrian contractor STRABAG had been commissioned to tackle this...
The “Förbifart Stockholm” bypass is creating a new north-south link on the edge of Sweden’s capital. The Swiss construction and construction services company Implenia is to handle the first...
