Jack-up Gantry Lowers Tunnel Boring Machine for Paris Metro Extension

Customer

Scales SAS


Location

Paris, France


Products

JS250 Jack-up Gantry System


Challenge

The Paris Metro Line 14 South extension required the safe and precise handling of an 880-ton tunnel-boring machine within a demanding construction environment. Scales SAS needed a reliable lifting solution capable of raising and lowering the machine during the different stages of the project.


Solution

Leading French heavy lift company, Scales SAS, has used an Enerpac JS-250 Jack-up gantry system to lift and lower Koumba, a 8.9m diameter and 11.4m long tunnel-boring machine weighing 880 tons, in the latest phase of the Paris Metro extension project.


Paris Metro - Extension of Line 14 South:

Construction: L14 Sud – Lot GC04

Metro Line owner: RATP (Régie Autonome des Transports Parisiens)

Project Management: ELIOS – Groupement SETEC TPI (Mandataire) – SYSTRA

Main contractor: Groupement NGE-GC (Mandataire) – SALINI – IMPREGILO.

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