Constitution Station – Brussels

Studies for structural work and finishing of the new Toots Thielemans station and tunnels (metro and tram) connecting to the existing infrastructure.

The works are as follows:

• the Toots Thielemans station (section C4A), under Avenue de Stalingrad and Boulevard du Midi, approximately 235 m in length;
• the Lemonnier station (section C3H), under Boulevard du Midi, approximately 250 m in length,
• two metro tunnel sections:
  • a metro tunnel approx. 250 m long, partially under the Palais du Midi, between the existing track under Boulevard Lemonnier and the new station,
  • a metro tunnel between the new station and the existing Midi station (approx. 275 m), under Constitution Square and Boulevard Jamar.

Features:

• tunnel bored under the water table, beneath existing buildings (optimisation of the alignment, choice of tunnel excavation methods, underpinning of the foundations of the Palais du Midi, etc.),
• preservation of the existing buildings and works (located above and close to the track Senne underground river, floodwater evacuator, existing tunnels, railway viaduct, etc.),
• limitation of impact on (pre)metro and tram operation,
• study of works phasing to limit nuisance and traffic disruption on the surface,
• deviation and/or integration of a major Vivaqua sewer node present in the tunnel right-of-way,
• coordination of the prior deviation of the utilities companies,
• appropriation of an existing tunnel for later use as a founda-tion for a multi-storey building,
• taking into account of the future platform walls.