Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Cut and cover
Patent
1992-02-21
1994-01-25
Reese, Randolph A.
Hydraulic and earth engineering
Underground passageway, e.g., tunnel
Cut and cover
405124, 405134, 52 89, 138105, 138116, E01F 500
Patent
active
052810534
ABSTRACT:
An underground tubular structural system capable of having a very large cross section, for the construction of urban or rural conduits, underground passages and other civil engineering installations. At least two conduits (S1) (S2), namely, a high conduit (S2) and a low conduit (S1), are superposed and at least the high conduit (S2) is formed in cross section by at least two prefabricated elements, namely a lower element (4) (6) in the shape of an inverted U capping the low conduit (S1) and bearing along two lateral sides (14) of the latter and an upper covering element (2') (5) capping the lower element (4) (6) of the high conduit and closing the section (S2) towards the top. One or more supplementary conduits can easily be added to an already existing conduit.
REFERENCES:
patent: 527597 (1894-10-01), Edwards
patent: 527871 (1894-10-01), Morrow
patent: 987398 (1911-03-01), Potter
patent: 2010484 (1935-08-01), Gunderson
patent: 4685829 (1987-01-01), Matiere
patent: 4869294 (1989-09-01), Matiere
patent: 5092710 (1992-03-01), Matiere
Olsen Arlen L.
Reese Randolph A.
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