Truss systems, components and methods for trussing arched mine r

Details Truss systems, components and methods for trussing arched mine r Truss systems, components and methods for trussing arched mine r

1988-12-08

1990-10-02

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Rock or earth bolt or anchor

405288, E21D 2000

Patent

active

049603485

ABSTRACT:
A truss structure, components, and method for trussing arched roofs in mines and the like. The truss structure includes, in addition to specially designed brackets and tensioned elongate connectors, one or more medially positioned upstanding post brackets for upwardly abuting against central portions of an arched mine roof. The method and concept includes, in a preferred form, applying obtuse-angle-oriented elongate connectors such as tie rods, secured to a lower portion of a post bracket concerned such that, when said elongate connectors are tensioned, an upward thrust is applied to said post brackets, whereby to produce an increased compression zone in the roof rock above the arched roof. Like-constructed interlocking roof truss structures are also provided for both longitudinally and also tranversely trussing an arched mine roof.

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