The metro system, nearly entirely underground, involves the use of dozens of mixed ground EPB TBMs: the largest simultaneous construction by TBM that has ever taken place in the city. The compact...
Three significant factors diminish the bearing capacity of the structure and hamper stability in the event of a tunnel fire:
Explosion-like spalling caused by immense heat development and the...
The drainage system of Mexcico City's metropolitan region is no longer sufficient to maintain an adequate water discharge, especially due to the increasingly unfavourable gradient of the Emisor Central wastewater tunnel, caused by the sinking process. To back up the old drainage system the construction of the Tunel Emisor Oriente (TEO), with a length of 62 km and an average diameter of 7 m began in 2008. The work schedule for the tunnel has a final completion date of June 2015.
The German company HydroWork GmbH has developed the novel mobile automation system CAIS (Compress Air Intervention System). It uses digital recording technology to record precise data required in...
An increasing number of clients are calling on contractors to carry out cover measurements in concrete for reinforced concrete elements and engineering structures. At the same time, clients too are...
From May 9th to May 15th 2014, Brazil will be the focus of the international tunnelling community. The country and the whole Latin American region have already called the world‘s attention due to the expansion in infrastructure and the number of ongoing projects involving tunnels.
The STUVA team would like to wish Prof. Martin Ziegler all the best on the occasion of his 60th birthday at the end of February. We take avail of this opportunity to thank our board chairman for the...
The execution of underground works requires an early assessment of all risks going along with the planning phase and its comprehensive control during construction to establish acceptable levels of security. This is achieved by placing a sensor network to register a series of values of the most significant parameters of the machines – TBMs and auxiliary tools – geotechnical measurements and existing structures that may be affected during progression of works.
The Südbahn represents a significant inner-Austrian railway link and is at the same time a part of the pan-European Corridor VI from the Baltic states to Upper Italy, connecting the Baltic Sea with...
The InnoTrans Fair will take place in Berlin again from September 23 to 26 and this time around there’s something to celebrate: for the 10th time the event will welcome the railway branch – but...
