Cutter structure for shield machine

Details Cutter structure for shield machine Cutter structure for shield machine

E - Fixed Constructions

21

D

E21D 9/08 (2006.01) E21D 3/00 (2006.01) E21D 9/11 (2006.01)

Patent

CA 2397444

In a cutter structure for a shield machine which advances by boring through a tunnel wall from inside an existing tunnel, the shape of an excavating surface on a work face formed by a cutter is set so as to have a smaller curvature than or an equal curvature to the curve of a surface to be excavated on the outer face of the tunnel wall to be excavated. Since the shape of the excavating surface on the work face formed by the cutter is set by a curvature, upon advance of the shield machine by boring through the tunnel wall, the tunnel wall to be excavated, the shape of which is cylindrical, can be cut into by opening a hole which extends diametrically outward from the central portion of the cutter. As a result, the sections that are not cut into remain connected to the existing tunnel and will not enter the cutter chamber in lumps.

Affiliated with

Also associated with

Rating

Cutter structure for shield machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cutter structure for shield machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cutter structure for shield machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1916969