Enclosed structures of very large cross-section, such as conduit

Details Enclosed structures of very large cross-section, such as conduit Enclosed structures of very large cross-section, such as conduit

1987-06-05

1989-06-06

Corbin, David H.

Hydraulic and earth engineering

Underground passageway, e.g., tunnel

Sectional

405124, 405153, E21D 900

Patent

active

048367141

ABSTRACT:
Enclosing structures having tubular sections which are elliptical in cross-section, each section being an assembly of prefabricated components corresponding to a portion of the cross-section of the tubular section and including side components and a vault forming upper component, and optionally a base component, the side components having stabilizing members at their lowermost ends, joints being provided to integrally interconnect the components to form a unitary structure.

REFERENCES:
patent: 109886 (1870-12-01), Freeman
patent: 1004288 (1911-09-01), McAlpine
patent: 1474808 (1923-11-01), Zucco
patent: 1886707 (1932-11-01), MacPherson
patent: 3638434 (1972-02-01), Delaere
patent: 3768267 (1971-10-01), Chlumecky

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