Fastener and method of sealing passage
AssigneesRelborgn Pty Ltd, Triomviri Pty Ltd
InventorDeon Van Dyk
Life of this patent
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Abstract
A fastener for fastening adjacent portions of a structure requiring fastening is described. The present fastener enables delivery of grout or a sealing composition into a passage between or adjacent the portions of the structure or between adjacent parts of the structure. The portions of the structure may include tubbing rings and segments thereof. The fastener includes an inlet and at least one outlet. The inlet and at least one outlet are connected by a channel. Grout or sealing composition can be delivered into the inlet where it flows through the channel, outwardly through the at least one outlet and into the passage requiring sealing. A method of sealing a passage in a formation using the fastener is also described.
Claims15
A fastener for fastening adjacent portions of a structure requiring fastening and delivering grout or sealing composition into a passage between or adjacent the portions and/or tubbing rings to seal said passage, the fastener comprising:
- an inlet and at least one outlet, the inlet and at least one outlet being connected by a channel whereby grout or sealing composition can be delivered into the inlet where it flows through the channel, outwardly through the at least one outlet and into the passage requiring sealing;
- a shaft with a pair of plate members disposed adjacent opposing ends thereof, the inlet of the fastener being located on an end of the shaft and the at least one outlet of the fastener being located intermediate the shaft;
- a head portion;
- and
- a plurality of sealing members with each plate member including a first sealing member disposed on a surface adapted to lie adjacent a surface of a segment requiring fastening and a further sealing member disposed between the head portion of the fastener and an outer surface of the adjacent plate member.
A method of sealing a passage in a formation, wherein the formation includes at least two components that are connected with at least one fastener, the at least one fastener comprising:
- an inlet and at least one outlet, the inlet and at least one outlet being connected by a channel whereby grout or sealing composition is delivered into the inlet where it flows through the channel, outwardly through the at least one outlet and into the passage requiring sealing;
- a shaft with a pair of plate members disposed adjacent opposing ends thereof, the shaft adapted to be received by corresponding apertures in the components, the inlet of the fastener being located on an end of the shaft and the at least one outlet of the fastener being located intermediate the shaft, the inlet and at least one outlet being connected by a channel whereby grout or sealing composition is introduced into the inlet and flows through the channel and outwardly from the at least one outlet into the passage;
- a head portion;
- and
- a plurality of sealing members with each plate member including a first sealing member disposed on a surface adapted to lie adjacent a surface of a segment requiring fastening and arranged in use to sealingly abut an outer surface of one of the at least two components that are connected with at least one fastener, and a further sealing member disposed between the head portion of the fastener and an outer surface of the adjacent plate member, so as to prevent or minimise leaking of grout or sealing composition when the grout or sealing composition is introduced through the inlet and outwardly into the passage, whereby the grout or sealing composition is set or coagulated to form a seal.
Dependencies are inferred from the claim text.