Since 2012 Hamburgs elevated railway (Hamburger Hochbahn) has been gradually introducing its new vehicle generation of twin cars (DT5) for its fleet. Apart from being more comfortable, the new vehicles cause fewer sound emissions. The Hamburger Hochbahn called on the STUVA to devise and undertake technical investigation methods to be able to work out and map the resultant noise impact brought on by this advantage.
Driven through a mountainside with 600 m of cover in Central Turkey, the Kargı Kızılırmak Hydroelectric Project is one of the most challenging tunneling projects ever completed in the region. The project is located on the Kızılırmak River, near the Beypazarı district of Ankara province in Turkey.
The Boßler Tunnel is currently under construction in the planning section 2.2 “Albaufstieg” on the new line from Wendlingen to Ulm as part of the upgrading of the “Main Line for Europe” (central European west-east rail corridor). The single-pass tunnel is bored by a tunnel boring machine (EPB-TBM) and has an excavated diameter of 11.39 m. The lining of the two tunnel bores consists of 45 or 65 cm thick reinforced concrete segments. The length of each bore is 8806 m. In particular the forecast squeezing rock conditions and karst phenomena pose engineering challenges. In the first seven months of tunnelling from April to October 2015, 2959 m were driven and 1457 segment rings were installed.
140 exhibitors from no less than 16 countries presented their products and tunnelling solutions on an area exceeding 2800 m² at the Tunnel Expo Turkey in the Istanbul Expo Centre in the district of...
The Turkish Tunnelling Society (TTS) was established in August 2012 in response to a growing demand from the national tunnelling industry. Since then TTS has grown with tremendous speed: The society has 700 individual members and 47 cooperate members. On occasion of the Tunnel Expo Turkey in late August, tunnel editor Marvin Klostermeier had the chance to talk with TTS chairman Prof. Dr. Nuh Bilgin about tasks and objectives of the young tunneling society and the prospects of tunneling in Turkey over the next few years.
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...
