Tunnel liners and methods of making the same

Details Tunnel liners and methods of making the same Tunnel liners and methods of making the same

1975-10-08

1978-01-31

Taylor, Dennis L.

Pipes and tubular conduits

Repairing

52245, 61 41R, 138155, 138DIG11, E21D 508

Patent

active

040708667

ABSTRACT:
A tunnel liner and segment are provided for simplifying changes in direction. The segment comprises a pair of liner plates each having a curved elongated skin with spaced parallel dependent sidewalls bent at an angle thereto, said liner plates being in spaced side-by-side relationship, spaced apart a selected greater distance at one end than at the other end, a pair of wedge shaped gusset plates in spaced parallel planes fixed to the sidewalls between said liner plates adjacent the top and bottom respectively of the adjacent sidewalls and an end plate at each end of said pairs of liner plates extending the remote sidewalls of each segment and connected to the sidewalls, gusset plates and skins to form a unitary whole.

REFERENCES:
patent: 1304521 (1919-05-01), Baker
patent: 1923006 (1933-08-01), Proctor
patent: 2366961 (1945-01-01), Fine et al.
patent: 3429588 (1969-02-01), Nelson
patent: 3677015 (1972-07-01), Chlumecky
patent: 3737179 (1973-06-01), White
patent: 3820292 (1974-06-01), Fitzpatrick

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