Tunnels and Shafts

ISIG (Internal Strutcture installation gantry)

Equipment for Handling and Installaion of Prefabricated Elements

The ISIG (Internal Structure Installation Gantry) is specialized equipment dedicated to the erection of prefabricated tunnel road deck segments, designed to operate in coordination with the TBM.

The machine receives the prefabricated element within its frame, lifts it, rotates it, and positions it behind the machine through controlled sequences. Operating at the rear of the TBM without interrupting its supply lines, the system is equipped with an integrated ramp for the transit of service vehicles. Each configuration is custom-developed based on the specific geometries, weights, and tunnel layout.

Gallery

Comprehensive technical and engineering support is provided throughout the entire product lifecycle. To extend the value of the equipment, revamping activities are carried out by assessing its condition and identifying targeted measures to increase service life, improve reliability, and prevent failures. This approach helps reduce environmental impact, contain costs, and return high-performance equipment to service with a significantly extended lifecycle.

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