FOUR TUNNELLINGS ARE UNDERWAY ON THE CENTRAL SECTION OF THE TROITSKAYA LINE

“Following the completion of the first tunnelling in the central section of the prospective Troitskaya Line, the construction of four more tunnels is underway”, said Andrey Bochkarev, Deputy Mayor of Moscow on Urban Planning and Construction.

Mosinzhproekt Group of Companies is a general designer and general contractor to build new lines and stations of the Moscow Metro.

“The central section of the prospective Troitskaya line is about nine kilometres long with the ZIL, Krymskaya, Akademicheskaya and Vavilovskaya stations. It is under active construction, with four TBMs, tunnel boring machines, working here”, said Andrey Bochkarev.

According to the Deputy Mayor, they are the “Lyudmila” TBM approaching the finish line in the left running tunnel between Vavilovskaya and Novatorskaya, the “Alexandra” TBM, which has recently started from the ZIL station to the Krymskaya platform, and the ‘Marina’ and ‘Olga’ tunnel boring machines connecting Vavilovskaya and Akademicheskaya: they have overcome in total about two thirds of the planned path.

Yuri Kravtsov, General Director of Mosinzhproekt JSC, added that the TBM is also being assembled for the construction of the tunnel towards Krymskaya at the assembly chamber of the station complex of the future Akademicheskaya station, which will be an interchange to the same name platform of the Kaluzhsko-Rizhskaya Line. Yuri Kravtsov explained that the construction of the station’s main structure will start after the tunneling between Akademicheskaya and Vavilovskaya is completed.

“In-situ concreting is underway at the neighbouring Vavilovskaya: about 2,000 cubic metres of concrete have been poured here”, said Yuri Kravtsov.

The head of the engineering holding said that the relocation of utilities and preparatory work for the main construction phase are underway at Krymskaya, while the retaining walls and excavation are underway at the ZIL station, where tunneling has recently started to Krymskaya.

Total distance of the Troitskaya Line is 40 km. It will link the Southern, South-Western, Troitsk and Novomoskovsk districts of Moscow and will enable to change to the platforms of the Moscow Central Circle (MCC) and other lines of the Moscow Metro. About 1 million people live near the new stations, and several hundred thousand more work or study nearby. All of them will get a metro within walking distance.