Mine roof support method and apparatus

Details Mine roof support method and apparatus Mine roof support method and apparatus

1978-04-26

1979-03-27

Taylor, Dennis L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

E21D 1502

Patent

active

041463498

ABSTRACT:
A support for a mine opening includes an elastic plate member with a preformed curvature across its length. Two props at each end of the plate member provide support after emplacement into a load-bearing contact with the roof stratum in a flattened or near flattened configuration to exert substantially uniform pressure against the roof stratum. Rectangular tubes form chock blocks connected to the ends of the plate member. Each chock block includes a clevis to retain the ends of the two props. A spacer maintains a small clearance between the roof and the terminal end portions of the plate member and an anchor pin connects each chock block to the plate member.

REFERENCES:
patent: 730677 (1903-06-01), Marcus
patent: 1049135 (1912-12-01), Nellen
patent: 1229323 (1917-06-01), Roby
patent: 1451840 (1923-04-01), Novotny
patent: 1858719 (1932-05-01), Queens
patent: 2036490 (1936-04-01), Nellson et al.
patent: 2371789 (1945-03-01), Batten

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