Bouygues Travaux Publics

Quentin Marie Christophe Bonnemaison

Antoine Thierry Charles Surmont

Pierre-Marie Pascal Tierce

Bastien Simon Papot

Vincent Stephane Laurent Viallet

Vincent Stéphane Laurent Viallet

The invention relates to a cutting wheel of a tunnel boring machine comprising at least one material discharge opening (), said discharge opening () being delimited by a circumferential wall (),

Unclogging of a discharge opening of a tunnel boring machine by ultrasonic waves

A trailer of a backup train of a tunnel boring machine includes a rolling means configured to allow movement of the trailer on a circulation route, a chassis including a lower portion including the rolling means and an upper portion, opposite to the rolling means, conveying means, fixed in the lower portion of the chassis, the conveying means being configured to move at least one support along the trailer, the support being configured to transport at least one arch segment along the chassis.

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Bourg la Reine, France

Quentin Marie Christophe Bonnemaison