Tunnel formwork gantries are essential in the construction of tunnels, providing the necessary framework for shaping concrete within tunnel excavations.

Here’s a comprehensive overview:

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What is a Tunnel Formwork Gantry?

A tunnel formwork gantry, also known as a tunnel lining gantry, is a large, adaptable mould designed to shape concrete within a tunnel. It provides the framework for wet concrete, guiding it into the desired tunnel profile.

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Types of Tunnel Formwork Gantries

There are various types of tunnel formwork gantries, including:

• Horse Shoe Gantry: Shaped like a horseshoe, suitable for specific tunnel profiles.

• Modified Horse Shoe Gantry: A variation of the horse shoe gantry with modifications to suit different requirements.

• D-Type Gantry: Designed for tunnels with a D-shaped profile.

• Bellmouth Gantry: Used for tunnels with a bellmouth shape.

• Cavern Gantry: Specialized for cavern sections within tunnels.

• Pocket Gantry: Designed for pocket sections within tunnels.

• T-Junction and Y-Junction Gantries: Used for T and Y junctions within tunnels.

 

Advantages of Using Tunnel Formwork Gantries

• Durability: Constructed from high-grade steel, ensuring long-term stability and functionality.

• Versatility: Can accommodate various tunnel shapes and sizes.

• Efficiency: Designed for quick assembly, disassembly, and movement within the tunnel, minimizing downtime.

• Safety: Provides safety benefits by reducing the need for manual labor and improving the overall quality of construction work.

 

Applications

Tunnel formwork gantries are used in various tunnelling projects, including:

• Utility Tunnels: Small tunnels for utilities like water and sewage.

• Large-Scale Infrastructure Projects: Major tunnels for transportation and other infrastructure.