Since September 23, 2018 the Call for Papers for the World Tunnel Congress 2019 in Naples, Italy, is closed; the Scientific Committee reported the receipt of 730 papers. The number of scientific...
The equipment of infrastructure tunnels with absorbers for the extraction of heating or cooling energy is a consistent further development of the shallow geothermal hybrid systems in the field of ground engineering. The heat fluxes acting on a tunnel geothermal plant result from a complex interaction of the climatic conditions at the surface and inside the tunnel, the subsoil conditions and the operation of the geothermal plant. A prediction of possible heat extraction rates is thus only possible on the basis of transient simulations. In the article from tunnel issue 6/2018, a simulation application for the investigation of tunnel geothermal plants developed at the Institute of Geotechnical Engineering of the University of Stuttgart is presented, and the results of parameter studies regarding the heat extraction performance from a shallow urban transit tunnel are discussed.
With more than 200 guests and employees, Geoconsult Asia Singapore celebrated 20 years of successful operation in the Asia-Pacific region. On occasion of this anniversary, Geoconsult organized a...
After the first successful workshop about digitalisation in tunnel building at the Ruhr University, Bochum, the members of the Forum for Young Engineering Professionals (STUVA-YEP) met again in the...
MotivationA fire in a tunnel is not only a direct threat for people. From temperatures of about 300 °C, massive damage can also be caused to the structure itself. Due to their age, numerous tunnel...
With the involvement of STUVA, a new project started in August 2018: “Evaluation and further development of safety concepts for rail tunnels (SIKET)”. The Federal Ministry for Education and Research...
Water-permeable Annular Gap Material for Single-Shell Segment Linings
On 10 October 2018, the Austrian national committee of the International Tunnelling and Underground Space Association (ITA) awarded their innovation prize to the STUVA for the “development of a water-permeable annular gap material for single-shell drained segment linings”. During a ceremony as part of the Austrian Tunnel Day 2018, the trophy was handed to the STUVA and their research partners IMM Maidl & Maidl (Germany), Porr Bau GmbH (Österreich) and MC-Bauchemie Müller GmbH & Co. KG (Germany). The prize committee of the Austrian Tunnel Day regularly awards the prize to particularly creative developments in tunnelling.
On October 26, 2018 the Malaysian Ministry of Finance (MOF) announced that the Mass Rapid Transit Sungai Buloh-Serdang-Putrajaya (SSP) Line (MRT Line 2) project will be continued by MMC-Gamuda, after the company agreed to a larger cost reduction for the underground works. The Mass Rapid Transit (MRT) project is a strategic Government project which will increase connectivity of the Klang Valley’s public rail network.
Terratec has announced the incorporation of its business partner, JIM Technology from Japan, as shareholder of the company. Both companies have been working together for the last 8 years and delivered...
On September 18, 2018, a Robbins slurry machine, measuring 13.7 m in diameter, made its first cut into hard rock
On September 18, 2018, a Robbins slurry machine, measuring 13.7 m in diameter, made its first cut into hard rock for the Hiroshima Expressway Line 5 project in Japan. The launch at an urban jobsite was made possible by Onsite First Time Assembly (OFTA) of the TBM. The contractor, a joint venture of Obayashi-Taisei-Kosei, had a strict timeline of eight months to adhere to when it came to machine assembly. “This deadline was very important. After assembling the TBM, I think OFTA was appropriate for this project,” said Mr. Ryota Akai, Deputy Project Manager for the Obayashi JV.
