Site report - microtunnel

Progress of work on the microtunnel at the Cheratte viaduct.

Under the responsibility of General Cable, the joint venture Vandenberg – Jan de Nul – K Boringen has completed the first major stage of the project with the construction of the waterproof secant-pile walls around the vertical shafts.

"The workers are now attacking the hard part of the ground, made up of rocks," explains Els Celens, project manager at Elia. "A drilling rig installs micropiles to form a metal cage designed to prevent any blocks from falling into the shaft."

This precision work is complete on the east side of the site (Meuse, Mercury site) but is still ongoing on the west side (behind the Carrefour supermarket). These vertical shafts are around 30 m deep. A concrete slab will need to be laid at the bottom of the shafts before work can start on the horizontal shaft – the microtunnel – which will pass beneath the River Meuse and the Albert Canal.

You can also monitor the progress of the project on our dynamic map

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