Tunnelling process and device

E - Fixed Constructions – 21 – D

Patent

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E21D 9/10 (2006.01)

Patent

CA 2263299

The present invention relates to a tunnelling method (10) starting from the working face in the driving direction, a bearing layer (15) being laid as the working face progresses and then carried away together with the debris. The inventive system includes at the front an excavating tool (61) capable of removing broken rock up to a certain width and a certain height, and an advancing device (68, 71) for moving forward and steering the system, and a control and setting device (65) for controlling and regulating the operation of the excavating tool (61) and the advancing device (68, 71).

Dans le procédé selon l'invention pour la construction de tunnels (10), où l'on progresse en partant du front d'abattage dans le sens du creusement avec mise en place d'une couche d'appui (15), ladite couche est installée à mesure que le front d'abattage progresse, puis évacuée avecles gravats. Le système en question présente à l'avant un outil d'excavation (61) pouvant déblayer les morts-terrains sur une certaine largeur et jusqu'à une certaine hauteur, un dispositif d'avancement (68, 71) permettant de faire avancer le système et de le diriger, et un dispositif de commande et de réglage (65) permettant de commander et de régler l'activité de l'outil de déblaiement (61) et du dispositif d'avancement (68, 71).

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