Elongate element tensioning member
AssigneeAtlas Copco MAI GmbH
InventorsAnthony Spearing, Joseph Jingle
Life of this patent
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Abstract
An adjustable yield rock bolt that comprises an elongated tensile support member that interacts with at least one gouging member and a receiving member capable of receiving the elongated tensile support member and hold the gouging member segment there between, wherein the elongated tensile support member extends beyond the receiving member a length that corresponds to a predetermined amount of yield before ultimate failure. The bolt has adjustability by allowing for controlled yield by gouging of the elongated tensile support member for any length of displacement.
Claims32
An adjustable yield rock bolt comprising:
- an elongated tensile support member;
- at least one gouging member;
- a receiving member capable of receiving the elongated tensile support member and holding the gouging member there between, wherein the elongated tensile support member extends beyond the receiving member a length that corresponds to a predetermined amount of yield before ultimate failure.
An adjustable yield rock anchor bolt comprising:
- an elongated tensile support member;
- at least one gouging member segment, wherein the gouging member segment has an interference fit with the elongated tensile support member;
- an expandable mechanical rock anchor shell that is dimensioned to receive the elongated tensile support member and having at least one retaining indent to position and hold the gouging member there between, wherein the elongated tensile support member extends beyond the expandable rock anchor shell a length that corresponds to a predetermined amount of yield before ultimate failure.
An adjustable yield rock anchor bolt comprising:
- an elongated tensile support member;
- at least one gouging member, wherein the gouging member having an interference with the elongated tensile support member, causing a gouge in the elongated tensile element the depth of the interference;
- a receiving body with a opening that is dimensioned to receive the elongated tensile support member within the opening and the opening having at least one retaining indent to position and hold the gouging member there between, wherein the elongated tensile support member extends beyond the receiving member a length that corresponds to a predetermined amount of yield and displacement before ultimate failure.
An adjustable yield rock anchor bolt comprising:
- an elongated tensile support member having a proximate end and a distal end;
- at least one gouging member segment, wherein the gouging member segment has an interference fit with the elongated tensile support member;
- a receiving body with a opening that is dimensioned to receive the elongated tensile support member at the proximate end within the opening and the opening having at least one retaining indent to position and hold the gouging member segment there between, wherein the proximate end of elongated tensile support member extends beyond the receiving body a length that corresponds to a predetermined amount of yield before ultimate failure.
Dependencies are inferred from the claim text.