Safe escape routes thanks to strong bolt anchors

fischer heavy-duty fixings for railway tunnel in Mexico

Safe escape routes thanks to strong bolt anchors
References
The first high-speed railway line is being built in Mexico. Steel anchors from the fischer group of companies are used in tunnel work to secure the escape routes for future passengers.
In order to reduce traffic congestion in Mexico City and shift traffic from road to rail, the Secretaría de Comunicaciones y Transportes (SCT) (the government's political secretariat for communication and transport in Mexico) has been building the new line since 2014. The connection runs between the capital and Toluca City, a city with about half a million inhabitants, about 65 kilometres southwest of Mexico City.
In addition to the "Secretaría de Comunicaciones y Transportes (SCT)", the "Secretaría de Energía (SENER)" (Secretariat/Ministry of Energy) is also responsible for the planning. The project managers awarded the contract for the construction and equipping of the line to a consortium of several companies.
Almost the entire line runs above ground, with the route supported on concrete pillars. Only a section of 4.7 kilometres in length runs underground through the tunneled mountain landscape of the Sierra de las Cruces. A two-tube tunnel is being built for this purpose. Its two tubes consist of prefabricated concrete elements. To meet the safety criteria, the planners have provided emergency walkways in the tunnel. These lead passengers to the emergency exits. This makes it possible for people in dangerous situations to leave the tunnel. These walkways were reinforced with steel plates, which are securely fixed in concrete with fischer FAZ II bolt anchors in size 20/60.

Object profile

Object type:
Railway line
Route length:
58 km
What was fixed with fischer products?
Steel plates reinforcing emergency walkways inside the tunnel
Maximum speed:
160 km/h
Completion:
2023
The fischer FAZ II bolt anchor can be used to fix heavy loads in cracked concrete. The steel anchor can be used particularly flexibly and installed easily and securely. When the nut is tightened, the conical bolt is pulled into the expansion clip and braces it firmly against the wall of the drilled hole. In this way, the bolt anchor safely transfers the loads into the concrete and enables the highest load-bearing capacity.

Ecological aspects played an important role in the planning of the route and the construction work. For example, those responsible replaced the initially planned lateral supports for the concrete route with central supports. This saved thousands of trees from being felled. The only tunnel on the new line was also built with the intention of preserving the natural mountain landscape of the Sierra de las Cruces.

Our products used

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