News

Subterra has expanded its machinery and this spring acquired a Volvo FH16 Tow Truck 650 8×4 with the Fassi F275 eDynamic hydraulic loading crane which is complemented by a Meusburger four-axle expandable semitrailer. The set is used for transportation of railway machinery or material, its latest employment was the reconstruction of the Poříčany station.

The Swedish daughter company SBT Sverige carries out the secondary lining of the Skärholmen highway tunnel in Stockholm. With the excavation by the Scandinavian method, the lining consists of a membrane and sprayed concrete, respectively of prefabricated wall elements. The membrane and prefabricated elements are carried by hundreds thousands anchors, manually installed into drill holes.

In Prague-Suchdol, division 4 is building a sewerage that will conduct sewage to the Central Water Treatment Plant. The sewer in Kamýcká Street, which will have about 550 meters in length, is being realized mostly by a no-dig method, the pipe is bored in a depth of more than seven meters. The construction should be completed this September.

The daughter company Subterra – Raab has completed another part of the M85 expressway in northwest Hungary that forms the bypass of the city of Sopron near the Austrian border. The most complicated part of phase IV is the Balf Junction. Subterra – Raab also participates in phase V, which should be completed in 2024.

Divison 3 is participating in the large modernization of the Žilina railway junction in Slovakia, featuring the rebuilding of four stations and the 16-kilometer-long track. Now division 3 is building noise barriers and also working on the reconstruction of tracks. The building site was taken over last December, the complete modernization will take four years.

Division 3 is participating in the modernization of the 16-kilometer-long section of the railway track between Kolín and Prague, namely on the tracks in Poříčany station. Now division 3 is working on the odd track group, for the reconstruction of the track substructure and superstructure two-way excavators, sleeper layers, automatic tamping machine and other machines are employed.

On Tuesday, February 9, there was the first blast for the Žabovřeská tramway tunnel, a part of another section of the Great Brno Ring Road. The official event featured representatives from the investor and contractors. The half-kilometer-long, one-tube tunnel under the hill of Wilson Forest is being realized by division 1, the bored part will measure 335 meters.

From April, division 1 has been working for the Swedish daughter company SBT Sverige on the concreting of the secondary lining of the Skärholmen highway tunnel in the complicated section under Mälaren Lake. Two 40-meter-long tubes will have concrete structures up to 4.5 meters thick, the casting is divided into walls and a vault. The tunnel on the Stockholm road bypass should be completed next year.

Work is continuing on the two-track railway Milochov Tunnel, which is located on the Púchov – Považská Teplá line in Slovakia. Division 1 is working on both portals, realizing the overfilled section and gabion walls at the western portal, while the front wall at the eastern one has been fully concreted. The total length of the Milochov Tunnel is 1,861 meters.