Lining or relining of tunnels

Details Lining or relining of tunnels Lining or relining of tunnels

1980-08-05

1982-08-31

Corbin, David H.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Lining

138 97, 29451, 29460, E21D 1100, F16L 5518, B23P 1904

Patent

active

043470181

ABSTRACT:
A method of lining or relining a tunnel comprises the steps of deforming a collar for insertion into the tunnel, reforming the collar to locate it in the tunnel, overlapping the edges of a pipe having a single longitudinal split to reduce its cross-sectional area for insertion into the tunnel, re-aligning the edges and expanding the pipe in the tunnel for engagement with the sleeve, and securing the edges together to retain the pipe in its expanded form.

REFERENCES:
patent: 3406724 (1968-10-01), Carlstrom et al.
patent: 3878320 (1975-04-01), Mixon, Jr. et al.
patent: 3894328 (1975-07-01), Jansson
patent: 4109684 (1978-08-01), Fernandez
patent: 4170248 (1979-10-01), Bennett et al.
patent: 4207130 (1980-06-01), Barber

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