Let's head north

Mosmetrostroy has begun extending the Lyublinsko-Dmitrovskaya line towards Lianozovo

The legendary tunnel-boring complex “Klavdiya” will construct sections to two new LDL stations. The Metrostroevets correspondent found out which obstacle will be the most difficult for the old-time shield.

It seems that Okruzhnaya, Verkhniye Likhobory and Seligerskaya were completed quite recently. And work began again on Dmitrovskoe Highway. The company’s plans include the construction of the “800th Anniversary of Moscow Street” and “Lianozovo” stations with stages and tunnel structures.

Station complexes will be built using open-pit methods. The distillation tunnels from the ramp chamber behind Seligerskaya to Lianozovo were entrusted to a shield with extensive experience. On June 11, the Lovat-242SE TBM with the permanent name “Claudia” headed for the north of the capital.

Behind the reversible dead ends of Seligerskaya, on site No. 30, a launch chamber was prepared for Claudia. The shield began construction of the left ferry tunnel. The TPMK will transit the station “800th Anniversary of Moscow Street” to “Lianozovo”, leaving behind 2.3 km of tunnel track.

DIRECT SPEECH

Oleg Melnikov, Deputy General Director of JSC “Mosmetrostroy” When fully equipped, the machine uses a conveyor haulage, which speeds up tunneling by 30%. “Klavdiya” will reach the “Lianozovo” station, there it will be dismantled in the dismantling chamber and then will pass the right section. This will provide a connection between the Seligerskaya and Lianozovo stations through two tunnels.

Before launch, the shield was completely renewed, from the inside to the outer shell. While the protective equipment is not fully installed, the dimensions of the installation chamber do not allow it. After 130 meters of the route, “Claudia” will be equipped with a conveyor. The length of the TBM will be 90 meters, it will gain decent speed, constructing 10 meters of tunnel lining per day.

– We will carry out the tunneling at a depth of 15-20 meters. Sands and loams are expected along the way. The most difficult obstacle for the TBM will be boulders,” noted the head of section No. 2 of TO-6 Evgeniy Bachurin. It is he who supervises the work on the machine of the Canadian company Lovat.

The excavation of the left section is expected to be completed in May 2020. Ahead is the relocation of communications, which still requires approval in some areas. For the meeting, TPMK will have to prepare a foundation pit in Lianozovo.

The new stations will make life more comfortable for 170 thousand Muscovites in the Dmitrovsky, Vostochnoye Degunino, Beskudnikovsky and Lianozovo districts. In the future, LDL will go beyond the Moscow Ring Road, reaching the village of Severny. In 2023, a Fiztekh station will appear next to the complex under construction at the Moscow Institute of Physics and Technology (MIPT). This is the only car whose name has never changed. Claudia was the name of the wife of the former head of Mosmetrostroy, Yuri Koshelev.

КСТАТИ

ТПМК Lovat-242SE, названный «Клавдией», появился у Мосметро­строя в 1998 году. Это единствен­ная машина, имя которой никогда не менялось. Клавдией звали жену бывшего начальника Мосметро­строя Юрия Кошелева.

For 20 years, “Claudia” traveled more than 10.5 km near Moscow, constructing eight distillation tunnels and one collector tunnel. After the ninth penetration, the shield needed major repairs and modernization.

From the very beginning, the TBMK was in the hands of Tunnel Squad No. 6, and it was they who carried out the reconstruction of the complex. Together with the Chinese company Lovsuns, we developed and installed a new shell that allows the solution to be supplied behind the tunnel lining through the tail part of the TBM.