Mine roof support
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United States of America Patent
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Jan 5, 2021
Grant Date -
Apr 30, 2020
app pub date -
Oct 24, 2019
filing date -
Oct 24, 2018
priority date (Note) -
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status (Latency Note)
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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.
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Cited Art Landscape
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