Tunnel liner building method and building panels therefor

Details Tunnel liner building method and building panels therefor Tunnel liner building method and building panels therefor

E - Fixed Constructions

21

D

E21D 11/15 (2006.01) E04B 7/08 (2006.01) E04C 2/08 (2006.01) E21D 11/10 (2006.01)

Patent

CA 2140747

2140747 9402697 PCTABS00030 Tunnel liners are formed from panels (10) of arched, bendable sheet material. The panels include a central portion (12), inclined side portion (14, 16), wing portions (18, 20), and hook (22) and receptacle portions (28) an opposite sides of each panel (10). Panels are joined with the hook portion of one panel fitting into the receptacle portion of the other panel and are then continuously seamed from the underside, i.e., the inside of the arched assembly.

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