Mine roof support
AssigneeCrosscut Enterprises LLC
InventorsDavid A. Hussey, George A. Watson
Life of this patent
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Abstract
A system or method for a structural mine roof support includes a roof support apparatus that includes a cylindrical cladding defining a hollow interior, a plurality of bamboo sections disposed in the hollow interior and coaxial with an axis of the cylinder. Also, a roof support apparatus with a cylindrical cladding defining a hollow interior, a plurality of bamboo sections disposed in the hollow interior and coaxial with an axis of the cylinder, and voids between adjacent bamboo sections, the voids being injected with a filler material, e.g., polyurethane foam, to maintain axial positioning of the bamboo sections when under load. The support apparatus configured to load and to yield in a predetermined fashion to control a mine roof from sudden failure.
Claims20
A roof support apparatus comprising a cylindrical cladding defining a hollow interior, a plurality of bamboo sections disposed in the hollow interior;
- the bamboo sections extending coaxial with an axis of the cylinder;
- wherein each of the plurality bamboo sections comprises a hollow core;
- and wherein the hollow core having PUR foam filler therein to provide additional strength.
A roof support apparatus comprising a cylindrical cladding defining a hollow interior, a plurality of bamboo sections disposed in the hollow interior and positioned within the cladding substantially coaxial with an axis of the cladding, wherein the adjacent bamboo sections define a plurality of voids therebetween;
- wherein each of the plurality bamboo sections comprises a hollow core;
- and wherein the hollow core having PUR foam filler therein to provide additional strength.
A roof support apparatus comprising a cylindrical cladding defining a hollow interior, a plurality of bamboo sections disposed in the hollow interior and positioned within the cladding substantially coaxial with an axis of the cladding, wherein the adjacent bamboo sections define a plurality of voids therebetween;
- and a plurality of lumber sections placed within the cylindrical casing of the roof support adjacent one or more of the plurality of bamboo sections.
Dependencies are inferred from the claim text.