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US 11,536,137 B2Granted
Light weight rockbolt components and a non-metallic rockbolt
AssigneeSaltus Mining Africa (Pty) Limited
InventorsJohann Adriaan Venter, Eckardt Rocco Du Plessis, Rual Abreu
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Abstract
The various disclosed embodiments provide a split set type composite rockbolt which has a slot extending from a chamfered tip of a tubular body portion of the rockbolt and through a neck portion partway to a collar portion. The rockbolt is made of a composite material which has a resin medium with longitudinal and circumferential fibres.
Claims18
A non-metallic split type friction composite rockbolt, comprising:
- a non-metallic collar portion;
- a non-metallic tubular body having a split or a slot therein;
- and
- a non-metallic neck portion intermediate to the collar portion and the tubular body,
- wherein the rockbolt is made of one or more of a polymeric and a composite material, wherein the slot or the split extends along at least a portion of a length of the tubular body starting at one end of the tubular body and comprising a rockbolt tip as a leading edge when the rockbolt is driven into a hole, and wherein the collar portion and the neck portion meets at a zone which is frangible such that the collar portion breaks off from the neck portion in a blast.
2 more elements
Dependencies are inferred from the claim text.