The holding uses technology that ensures minimal impact on the urban environment

“Being discussed at the conference of the Russian Tunnelling Association at the 100 + TechnoBuild 2021 International Construction Forum, the most advanced technologies of underground construction and tunnelling are used in the construction of new stations and metro lines of the capital”, said Yuri Kravtsov, General Director of Mosinzhproekt JSC. Mosinzhproekt Engineering Holding is the operator of the Moscow Metro Development Program.

“Over the past decades, Mosinzhproekt Holding acts as a management company for the construction of new lines and stations of the Moscow Metro, the work is carried out throughout the city, including in the restrained urban conditions of its historical part, in technically challenging and unique conditions,” said Yuri Kravtsov.

According to him, under these conditions, namely due to an abundance of utility systems, highways, railroads, operating metro facilities, vibration-sensitive buildings, historical and cultural monuments in the construction zone, it is necessary to minimize the impact on the geo-ecological environment.

During the conference of the Russian Tunnelling Association, Dmitry Konyukhov, head of construction research and technical maintenance department, Mosinzhproekt JSC, said that the company develops, implements, and applies advanced technologies of underground construction, ensuring minimum impact on the natural and technogenic urban environment, interactive methods of managing technological parameters of mining and construction machines based on the results of geotechnical monitoring and innovative ways of geotechnical risk management.

“Over the past seven years, the holding’s specialists took part in the development of five federal regulations for the design and construction of underground structures. In addition, at all stages of tunnelling and construction of stations, their supervision, round-the-clock automated geodetic monitoring, soil mass surveying and quality control of work are performed,” specified Dmitry Konyukhov.

Nikolay Ostrovskiy, head of the mechanised tunnelling and special work department, Mosinzhproekt JSC, specified during his speech that the company uses cutting edge 6 and 10-meter diameter TBMs. The last is designed for the construction of double-track tunnels, which allows avoiding constructing additional structures and reduce the cost of construction while making the metro safer for passengers.

“The efficiency and safety of tunnel construction are also increased by continuous monitoring of the technological parameters of tunnelling complexes using remote access to their visualization in the tunnelling control center,” added Nikolay Ostrovskiy.

According to the company’s experts, thanks to the combination of measures undertaken and technological innovations used, the timely commissioning of lengthy sections of the Moscow Metro is ensured.

Over the past ten years, more than 105 kilometres of metro lines, 51 metro stations and 11 electric depots were built and commissioned in Moscow with the participation of Mosinzhproekt. The Big Circle Line is a key mega project in the development of the Moscow Metro. There will be 31 stations included on the BCL, 12 of which have already been functioning for passengers.