Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Cut and cover
Patent
1991-06-21
1993-04-06
Taylor, Dennis L.
Hydraulic and earth engineering
Underground passageway, e.g., tunnel
Cut and cover
405151, 405258, 52 88, E21D 900
Patent
active
051998190
ABSTRACT:
A process for the construction of a semi-buried structure for the protection of a subgrade formed on a mountainside, and the structure thus constructed. The structure consists entirely of precast concrete elements forming a succession of adjacent sections, each consisting of three precast elements, respectively an upper covering element bearing, via longitudinal articulations, on two side elements comprising, respectively, a solid wall on the uphill side and at least one pillar on the downhill side, and each provided with a widened footing enabling the element simply to be placed on the ground, and with an upper portion in the form of a stringer on which are formed longitudinal portions for the articulated bearing of the corresponding lateral edge of the covering element. The invention applies, in particular, to the protection of highways or railroad tracks in mountainous locations.
REFERENCES:
patent: 853204 (1907-05-01), Luten
patent: 2535883 (1950-12-01), Williamson
patent: 3282056 (1966-11-01), Fisher
patent: 4685829 (1987-08-01), Matiere
patent: 4798499 (1989-01-01), Yamada
patent: 4836714 (1989-06-01), Matiere
"Route de la Forclaz"-Ch. Cleusix, ing. EPF SIA, Sion-No. 6-Jun. 2, 1967.
"Ventilation"-No. 3 Mar. 11, 1974.
Olsen Arlen L.
Taylor Dennis L.
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