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US 4,798,501 AGranted
Flexible rock anchor
AssigneeRudolf Hausherr & Sohne GmbH & Co. KG
InventorKlaus Spies
Life of this patent
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AssigneeRudolf Hausherr & Sohne GmbH & Co. KG
InventorKlaus Spies
Estimating the term…
The flexible earth anchor useful for reinforcing underground structures such as a traverse is insertable in a hole in the ground to a certain depth and is attachable with the walls of the hole at its end facing the deepest portion of the hole or along its entire length. Advantageously an adhesive means is used for the attachment. The anchor is constructed from a plurality of lamella in close contact with each other and slidable against each other. Advantageously the lamella are made from sheet metal in a continuous manufacturing process and are attached together by welding. They can be spread out at their inserted end in the hole to provide a better bond to the adhesive and held together by a ring. A sleeve can be provided at the chamber end which is attached by welding to the lamella and which can be used to rotate the earth anchor during the adhesion process.
A flexible rock anchor which is insertable in a bore in the ground to a certain depth and is attachable to the walls of said bore at its end facing the deepest portion of said bore by an adhesive means, comprising:
A flexible rock anchor insertable in a bore having an open end at a surface of the ground and attachable to walls of said bore at least at a portion thereof remote from the open end by an adhesive material, comprising:
In a flexible rock anchor which is insertable in a bore in a ground structure and is attached at a portion of the bore remote from an open end of the bore by an adhesive material, the improvement wherein said anchor is formed from a multiplicity of metal strips formed into a stack and constituting respective lamellae, said lamellae having thicknesses less than the respective widths and different widths so that said stack generally has a circular cross section, the lamellae of the stack having free ends within said bore which are inclined away from one another, the lamellae being slidable against one another in axial direction and being rectangular in cross section and lying flat against one another.
Dependencies are inferred from the claim text.