The STUVA Conference has really become a must on the agenda of committed tunnellers and tunnel operators. The next STUVA Conference will be staged in Dortmund from December 1 to 3, 2015. More than...
The district of Gaziösmanpaşa is located to the north-west of Istanbul’s historic city centre. From there the quickly growing metro system for the city of 14 million will be augmented by a further 17.5 km of underground railway with 15 stations. Work on the new Mecidiyeköy–Mahmutbey Metro line began in March 2014 planned by the Yuksel Proje engineering office and executed by a joint venture comprising the turkish companies Gülermak, Kolin and Kalyon (GKK).
After 16 months of tunnelling under the Bosphorus Strait a Herrenknecht Mixshield with an excavation diameter of 13.7 m on August 22, 2015 pierced the target shaft wall of the Eurasia Tunnel on Istanbul’s European side exactly to plan. The invited guests witnessed the finale of an exceptional construction achievement. Never before has such a large tunnel been built underground under such complex and extreme conditions.
On June 11 2015 Qatar Railways Company (Qatar Rail), the company overseeing the construction of the Qatar‘s integrated railway network, announced the successful breakthrough of one of its Doha Metro...
At the end of June the Road Transport and Bridges Ministry of Bangladesh signed a 705 million US dollar deal with China Communication Construction Company Ltd (CCCCL)
to build a 3.5 km long two lane...
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.
