Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Lining
Patent
1991-08-14
1994-03-22
Reese, Randolph A.
Hydraulic and earth engineering
Underground passageway, e.g., tunnel
Lining
4051501, 52 86, 52821, E21D 508
Patent
active
052957640
ABSTRACT:
Tunnel liner plate assembly comprising a tunnel liner plate comprising an outer wall and inwardly extending side and end flanges, each having bolt holes therein, and a longitudinally extending plate metal reinforcement extending from end flange to the other and comprising a center section which abuts the outer wall of the liner plate, a pair of upstanding side section which are integrally joined to the center section along respective side edges, and laterally projecting flanges which project laterally from the upper (or inward) edges of the respective side sections. The center section and the side sections together provide a U-shaped configuration and the laterally projecting flanges, which are spaced from the outer plate of the outer wall of the tunnel liner plate and are parallel thereto, afford a marked increase in moment of inertia and section modulus with very little increase in mass. An assembly, or reinforced liner plate, according to this invention has a much greater moment of inertia and much greater section modulus than does an unreinforced liner plate of the same thickness. Correspondingly, the strength of a reinforced tunnel liner plate of this invention is appreciably greater than the strength of an unreinforced tunnel liner plate of the same thickness. Also, the weight of a tunnel liner plate assembly of this invention appreciably less than that of an equivalent unreinforced tunnel plate having the same strength.
REFERENCES:
patent: 1778606 (1930-10-01), Proctor
patent: 1967489 (1934-07-01), White
patent: 2114834 (1938-04-01), Foukal
patent: 3334007 (1967-08-01), Flagan
patent: 3357194 (1967-12-01), Fisher
patent: 3488965 (1970-01-01), Chesnov
patent: 3976269 (1976-08-01), Gupta
patent: 4070866 (1978-01-01), Juvrud
patent: 4194330 (1980-03-01), Smith
patent: 4802321 (1989-02-01), Menchetti
Soft Ground Tunneling, Aug., 1981 Commercial Shearing Inc.
Reese Randolph A.
Ricci John
WCI Steel, Inc.
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