In the Vienna Lainzer Tunnel scale deposits were a substantial problem in a section of the underground water drainage system. The application of hydro-mechanical cleaning methods was no longer feasible and it would have been complicated to rebuild the drainage system. This section was thus treated with a 10 % hydrochloric acid solution between November 2012 and April 2014. In this way, it was possible to remove the scale deposits to such an extent that the drainage system could be purged by conventional means. These tests were accompanied by extensive monitoring, camera inspections and water analyses. It was proved that the application of hydrochloric acid had no harmful effects on the runoff ditch.
At the end of a public tender procedure published at the European level, BBT SE awarded the contract for executive planning and works for the Isarco River Underpass to the temporary consortium made up by Salini Impregilo S.p.A., as representing company, Strabag AG, Strabag S.p.A., Consorzio Cooperative Costruzioni CCC Società Cooperativa e Collini Lavori S.p.A.
The 1076 m long Slowacki Tunnel comprises two parallel tubes with an internal diameter of 11 m, each designed for two-lane road traffic. It is the largest tunnel ever built in Poland and the...
Applications for the COSUF Award 2015 in English language must be received by the ITA secretariat by 28 February 2015. Students, young professionals or researchers (less than 35 years old) are eligible if they have in the last two years completed a research work in theory and/or practice in the area of operational safety or security of underground facilities. The winner of the award is selected by the ITA COSUF steering board.
Designed and manufactured by China Railway Engineering Equipment Group Co., Ltd. (CREG), the Tunnel Boring Machines (TBMs) CR-51 and CR-50 have successfully completed two 2814 m long tunnels in Kuala Lumpur, Malaysia. The breakthroughs of CR-51 and 50 were celebrated during the morning of October 21 and October 29, 2014 respectively at Parsar Seni Station, part of the Klang Valley Mass Rapid Transit (KVMRT) Project.
Both during the construction phase as well as during subsequent rail operations of the Brenner Base Tunnel, the ventilation shaft at the community of Patsch together with the ventilation cavern will...
The Marieholm Tunnel in Gothenburg is a road tunnel with three lanes per direction and an evacuation tunnel. It is devised for more than 100 years service life and is to be built as an immersed tunnel just like the 300 m long, two-track Söderström Tunnel. Towards this end, three part-sections each 100 m in length are constructed in a dry dock and then submerged in a trench excavated on the riverbed.
Following requests for submissions from all over Europe, the Deutsche Bahn commissioned The Tunnel Rastatt JV, with the technical management in the hands of the Ed. Züblin AG and the Hochtief AG responsible for the commercial side of things, to undertake the roughwork for the tunnel at a cost of 321 million euros. Work commenced in November 2014 with the creation of a site installation yard at Ötigheim and the building of the north groundwater trough, the access to the tunnel’s north portal.
Within the scope of the EU Guidelines 2008/43/EG and 2012/4/EU businesses dealing with explosives are committed as from April 5, 2015 to assure complete traceability of explosives that are stored and...
The Austrian village of Vent is located 1900 m high in the Ötztal Alps. The only road connection passes through the narrow VenterValley with a number of gallery constructions providing protection...
