“The ‘Olga’ tunnel boring machine (TBM) has completed its work in the zone of influence of the operating facilities of the Kaluzhskaya-Rizhskaya Line. The TBM was tunnelling the right running tunnel between the Vavilovskaya and Akademicheskaya stations of the Troitskaya metro line”, said Andrey Bochkarev, Deputy Mayor of Moscow on Urban Planning and Construction.

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

“From 3 to 5 December, the TBM covered 40 metres in the technical zone of the operating metro facilities, passing under the Akademicheskaya station of the Kaluzhsko-Rizhskaya Line and adjacent tunnels at an average speed of 12 metres per day”, said Andrey Bochkarev.

According to the Deputy Mayor, the work was completed in three days, so the traffic on the previously closed section of the orange line was opened two days earlier than scheduled.

Yuri Kravtsov, General Director of Mosinzhproekt JSC, added that all work was carried out normally, with round-the-clock monitoring of the condition of the surrounding structures to prevent the slightest possible impact on the existing transport facility.

“I would like to thank my colleagues from the Moscow Metro for their cooperation with the builders – our joint coordinated work enabled not only to meet the deadline, but also complete the difficult section ahead of schedule”, said Yuri Kravtsov.

The head of the engineering holding also said that to date, the ‘Olga’ TBM had covered more than 2.4 km, which was more than 90% of the planned route through the right running tunnel between the Vavilovskaya and Akademicheskaya stations of the Troitskaya metro line. The adjacent, left running tunnel had been completed earlier by the ‘Marina’ TBM.

“Previously, the ‘Olga’ tunnel boring machine was used to construct the Sheremetyevo airport inter-terminal passage and tunnelled the metro tunnel of the Nekrasovskaya Line”, specified Yuri Kravtsov.

In the area of responsibility of Mosinzhproekt Engineering Holding, there are nine stations of the Troitskaya Line: ZIL, Krymskaya, Akademicheskaya, Vavilovskaya, Novatorskaya, Universitet Druzhby Narodov, Generala Tyuleneva, Tyutchevskaya, and Mamyri.

Tunnelling from the Akademicheskaya and ZIL stations towards Krymskaya is underway.

The 40 km long Troitskaya metro line will connect the platforms of the Moscow Central Circle (MCC) with the city district of Troitsk, going through the Southern, South-Western, Troitsky and Novomoskovsky districts of the capital city. The expected daily passenger traffic flow is somewhat 100 thousand people per day. About 1 million people live near the new stations, and several hundred thousand more work or study nearby.