Switches set for more mobility

fischer bolt anchors secure Metro in Moscow

Switches set for more mobility
References
According to information from the traffic provider Inrix, drivers in Moscow spent around 210 hours stuck in traffic jams last year. The average speed was only 18 km/h. The construction of the new metro tunnel, planned by the Lenmetrogiprotrans Institute and led by the construction company Mosinzhproekt (both Russian), is intended to help more commuters switch from road to rail. Against this background, Russia attaches great importance to the project, which started in April and whose first phase is expected to be completed by the end of 2019. Technological solutions are being used that are completely new for the Moscow metro.
Image: Mirko Vitali / 123 rf
This also includes the ventilation system. Thus, the tunnel ventilation for the removal of pollutants, smoke extraction in case of fire, as well as fresh air supply meets the latest technical standards. Safe and durable, yet at the same time fast and economical, the ventilation and exhaust systems are secured with fischer FAZ II bolt anchors. In this process, the Russian national subsidiary of the fischer group has developed a solution in close cooperation with VIP Systems, one of its distribution partners, and proposed it to Lenmetrogiprotrans, which optimizes the fastening design both technically and economically. A total of around 30,000 FAZ II 24/30 and about 18,000 FAZ II 12/10 – both versions made of stainless steel (A4) – secure the ventilation system.

Property Fact Sheet

Object Type
Metro Tunnel
Location
Moscow, Russia
Construction phase
April- December 2019
„Initially, it was planned to secure the systems to the tunnel tubes with four anchors per unit due to high loads, each with a diameter of 24 millimeters,“ reports Andrey Egorov, Managing Director of fischer Russia. „In this case, we offered a significantly more economical fastening solution while maintaining high safety,“ emphasizes the expert and explains: „With our fischer FAZ II 24/30 A4, the number of fastening points could be reduced from four to two while ensuring the required load capacity.“ This avoided errors when fastening the ventilation and exhaust systems in the highly dense reinforced concrete of the railway tunnel, as well as reduced material costs and labor time.
Image: fischer
Two FAZ II 24/30 A4 bolt anchors secure the main units of the ventilation system to the tunnel tubes. Two FAZ II 12/10 A4 additionally secure secondary supporting structures. Overall, the bolt anchor is a preferred solution for fastening devices such as fans in tunnels. With its proven expansion clip, it safely transfers loads into the concrete and enables very high load capacity. The FAZ II 24/30 and 12/10 in A4 have an ETA (European Technical Approval) and an ICC approval, ensuring they meet European and international standards, are made of stainless steel, and are demonstrably resistant to fire and seismic effects. "In addition to the optimal fastening solution, we also impressed our client with our service offerings, through which we support the metro construction across all project phases from planning and calculation to training and on-site support during construction up to completion," emphasizes Andrey Egorov.
With our fischer FAZ II 24/30 A4, the number of fastening points could be reduced from four to two while ensuring the required load capacity.
Andrey Egorov, Managing Director of fischer Russia

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