Collapsible tunnel liner section and method of lining a tunnel

Details Collapsible tunnel liner section and method of lining a tunnel Collapsible tunnel liner section and method of lining a tunnel

E - Fixed Constructions

21

D

61/64

E21D 11/08 (2006.01)

Patent

CA 1125039

ABSTRACT OF THE DISCLOSURE A collapsible tunnel liner section formed from a number of arcuate segments each connected together by hinges to form a closed loop. In collapsed condition the segments are arranged in a compact stack having a cross section less in its maximum dimension than the internal diameter of the erected liner section. Typically the stack has the appearance of a figure 8, having upper and lower cavities. Expansion means are located within these cavities and are expanded to expand the collapsed tunnel liner section into its erected condition. During the expansion the liner section passes through an oversized condition before assuming its final erected condition. This ensures stability for the erected liner section. After erection, grout or other filler material is inserted between the liner section and the wall of the tunnel. - 1 -

359851

Affiliated with

Also associated with

Rating

Collapsible tunnel liner section and method of lining a tunnel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Collapsible tunnel liner section and method of lining a tunnel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collapsible tunnel liner section and method of lining a tunnel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-974327