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7381013 |
Rock bolt post grouting apparatus
An apparatus ( 100 ) for post-grouting a rock bolt ( 1 ) has an elongate sleeve ( 101 ) adapted to receive a rock bolt ( 1 ) with a first end ( 1 a ) thereof extending beyond the sleeve first end (...
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7377724 |
Method and device for installing a self-drilling expandable rock bolt and a self-drilling rock bolt
In a method and a device for installing, in a rock wall or roof, a self-drilling expandable rock bolt ( 2 ) having a drill bit portion ( 5 ), an expansion portion ( 9 ) and a connecting portion (...
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7338234 |
Rock bolt
A rock bolt ( 1 ) comprises a tubular body ( 4 ) defining a tubular bore ( 5 ) for receiving an adhesive or cement filled cartridge ( 18 ). A plug ( 8 ) is mounted in the bore ( 5 ). The plug ( 8 )...
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7338233 |
Soil nail and method of installing a subsurface support
A subsurface support includes a soil nail of two-piece construction. The body of the soil nail is constructed of fiberglass. The tip of the soil nail is constructed of a machined metal piece that...
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7318689 |
Method and device for rock bolting
Method and device for rock bolting, wherein a tubular bolt ( 2 ) with closed cross-section is inserted and expanded for anchoring inside a bore hole ( 12 ), wherein the tubular bolt is expanded to...
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7296950 |
Point anchor coated mine roof bolt
A resin bonded mine roof bolt having an elongated rod with a first end and a second end. A segmented resin compression layer covers a portion of the rod below the first end. When installed in a...
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7284932 |
Pressing-out apparatus
A pressing-out apparatus ( 4 ) for pressing out a mass from a self-drilling, chemical composite anchor ( 2 ) for mining and tunnel construction has a pressing device arranged in a housing ( 21 )....
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7226650 |
Wrapped highly viscous chemical anchoring adhesive
A film wrapper for use in storing slugs and ropes of chemical anchoring adhesive includes an outer metallized polymer layer and a heat seal layer. The metallized polymer layer protects the chemical...
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7226247 |
Method and apparatus for creating soil or rock subsurface support
A subsurface support includes a protective outer member that encases an interior support member. The inner support member may typically be a steel or iron rod which is held within the outer tube as...
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7147404 |
Elongate element tensioning member
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...
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7076924 |
Ovalized concrete block-out tube with tear away nailing flange
A block-out tube for use in joining together pre-cast concrete members, the block-out tube having an ovalized cross-section, an integral elongate imperforate hollow tubular body with smoothly...
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7073981 |
Rock stabilizer
A rock stabilizer includes a metal tube with a tapered distal end and a flanged proximal end capable of being positioned within a bore in a mine wall. A slit runs substantially the entire length...
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7037058 |
Resin embedded rock bolt
A resin embedded rock bolt dimensioned to be inserted into a hole drilled in a rock body with a clearance fit between the bolt and hole, the bolt having a shank which is plastically deformed by the...
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7037046 |
Yielding strata bolt
The present invention discloses a rock bolt having a tendon ( 1, 201 ) which is able to yield and thereby control movement of unstable rock strata into which the bolt is installed. The tendon has a...
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7033117 |
Rock anchor
A self-drilling rock anchor includes an anchor tube ( 2 ), a drill head ( 6 ) provided at the first end ( 5 ), an outer thread ( 8 ) provided at least in a region of the second, free end ( 7 ) of...
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7025538 |
Bonding anchor
An anchor ( 1 ) comprising an anchor tube ( 2 ) and an inner tube ( 3 ) arranged in the anchor tube ( 2 ) for receiving a dispensable chemical mass ( 4 ). The anchor tube ( 2 ) has a first end ( 5...
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6984091 |
Yielding rock bolt
A yielding rock bolt arranged to be inserted into a hole in a rock surface. The rock bolt comprises a shaft having a widened portion adjacent a first end thereof, arranged, in use, adjacent an...
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6955504 |
Attachment element
An attachment element ( 1;51 ), includes a boring head ( 5 ), a hollow cylindrical receiving body ( 2; 53 ) having, at its end ( 4 ) facing in a setting direction (S) of the attachment element ( 1;...
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6837018 |
Connection and method for setting a composite anchor with an apertured screen in a substrate
A connection, and a method of forming a connection, that adhesively fixes and bonds a fastening element or anchor in bore hole, particularly in a soft substrate or substrate with an interior cavity...
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6802674 |
Arrangement for feeding soldering material
An arrangement for feeding soldering material into a space between a bolt and rock includes a sleeve-like nozzle which can be pushed tightly against a feed chamber on the rock bolt so that a feed...
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6793445 |
Method and apparatus for insertion of rock bolts
A drill head capable of attachment to a drilling machine for insertion of rock bolts into rock strata. The drill head comprising: a base block adapted to facilitate attachment to the drilling...
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6779950 |
Reinforcing member
A reinforcing member such as a cable bolt is formed of a multiplicity of helically stranded wires wound around a straight core or king wire. At least the outer wires are formed with a plurality of...
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6742966 |
Expansion shell assembly
An expansion shell assembly for mine roof bolts includes an expansion member threaded onto an associated mine roof bolt. A support device is annularly disposed around the associated roof bolt. An...
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6719498 |
Slope stabilizer
A slope stabilizer in which both a ground anchorage and a soil nail are located in a single borehole. The ground anchorage includes a plurality of ground anchorages, each including a tensile member...
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6705804 |
Anchor
An anchor, which is secured in a bore with a mortar, has an anchor member ( 12 ) located in the bore, a load application member ( 11 ) projecting out of the bore, at least one mixing element ( 13,...
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6698980 |
Rock stabilizing apparatus and method
A rock stabilizing apparatus and method for use with adhesion materials has a tensionable reinforcing member having a threaded portion at one end and an opposite end. The member-threaded portion...
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6672806 |
Device for drilling and anchoring and process for placing grout anchors
A drilling and anchoring device comprises a drilling pipe ( 8 ), a drilling tool ( 12 ) mounted at the end of the pipe, and one or several cables ( 4 ) and/or other anchoring reinforcements. The...
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6645340 |
Curable two-component mortar composition and its use
A curable, two-component mortar composition is described, which is based on a curable epoxide resin, at least one reactive diluent for the epoxide resin, an amine curing agent and one or more...
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6637980 |
Method and apparatus for re-tensioning a roof bolt in an underground mine
A method and apparatus of re-tightening or retensioning a roof bolt in an underground mine serves the purpose of enabling the operator to place tension between the head of a permanent,...
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6626610 |
Cable bolt apparatus and method of installation for mines
Cable bolt wedge barrel, installation apparatus and method, for cable bolt installation in a mine borehole provided an interior resin system, wherein the wedge barrel of the cable bolt employed,...
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6612783 |
Cable bolt with mixing delay device
A mixing delay device for use with tensionable cable bolts wherein the mixing delay device compresses or is uncompressed in response to a compression force applied to the mixing delay device,...
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6599059 |
Three-prong shell
An expansion assembly configured to be attached to a mine roof bolt, wherein the expansion assembly may include a plug defining an interior cavity and an outer surface and an expansion shell having...
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6578329 |
Anchoring device for fixing a structural cable to a building element
An anchoring device for fixing a structural cable to a building element, the cable comprising a plurality of strands each comprising wires which are themselves enclosed together in a protective...
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6565288 |
Soil nail apparatus
A method and a structure for stabilizing a formation of natural substrate having a substantially vertical face. A tendon is inserted into a hole in the formation. A heading device includes a plate,...
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6533503 |
Mortar composition, curable by frontal polymerization, and a method for fastening tie bars
A mortar composition, curable by frontal polymerization after heat initiation, is described, wherein are contained a) at least one polymerizable monomer and/or at least one curable resin, b) at...
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6527482 |
Grit surface cable products
A mine roof bolt, preferably one inch or less in diameter, having an external coating configured with particles which mix resin as the mine roof bolt is rotated in a mine roof bore hole.
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6514013 |
Anchor rod with surface areas and friction
In an anchor rod ( 1 ) for a synthetic resin adhesive anchor having a shaft ( 2 ) with a plurality of area segments ( 4 ) arranged in axial succession, the surface of which is low-friction with...
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6513300 |
Wall cladding anchorage
A wall cladding anchorage has a rod with ends loosely enveloped by fabric sleeves. The wall is drilled to receive one end and the cladding is drilled, or otherwise formed with a cavity, to receive...
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6499267 |
Rods secured in anchorage by at least one of organic and inorganic mortar composition
A tie rod, for insertion into an anchorage where it is secured by at least one of an organic and inorganic mortar composition has an axially extending shaft ( 2 ) with an axially extending...
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6491478 |
Tubular anchor
A tubular anchor including a tubular member ( 1 ) having, at its one end, a crown-shaped drilling head ( 2 ) and, at its opposite end, a load application element a substantially cylindrical hollow...
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6484471 |
Adhesive fixed anchors
An anchoring member is provided for anchoring an object to a supporting surface having a bore for receiving the anchoring member. The anchoring member comprises an elongate cylindrical body having...
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6474910 |
Rockbolt assembly
A rockbolt assembly for securement within a borehole generally comprising a rockbolt, an anchor, a hollow tube assembly, a faceplate and a nut. The rockbolt has a threaded free end and a second end...
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6468010 |
Fastening element
A fastening element including a cylindrical body ( 1 ) having, in its end portion remote from an end facing in a setting direction, a longitudinal bore ( 22 ) for receiving a mortar mass, and...
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6447228 |
Rock bolt and method of forming a rock bolt
Improvements to a rock bolt and a method of forming a rock bolt are disclosed. The rock bolt includes at least one paddle section that is formed by applying an eccentric shear force to the shank of...
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6447210 |
Resin nozzle positioner
A resin nozzle positioner for a rock bolter, having a frame supporting feed tracks traversed by a drill and a bolt driver, has a resin nozzle that guides a resin sausage into a hole drilled along a...
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6428243 |
Cable bolt
A cable bolt ( 10 ) for use in mining excavations comprising a plurality of generally closely spaced wires or strands ( 11 ) which have a first end for fitting into a bore hole ( 21 ) formed in an...
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6420458 |
Solid amine-cured anchoring adhesive
A chemical anchoring adhesive having a solid, putty-like consistency includes two parts in direct contact with each other along an interface. The first part includes about 20-45% by weight of an...
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6416256 |
Method of making and applying chemical anchoring adhesive
A method of making and applying a chemical anchoring adhesive in the form of a highly viscous, self-contained rope or slug is provided. The rope or slug has an average cross-sectional area...
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6402434 |
Method of applying chemical anchoring adhesive
A method of applying a chemical anchoring adhesive to the interior of a borehole includes the steps of providing a highly viscous, self-contained slug of chemical anchoring adhesive, inserting the...
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6397957 |
Jacket tube for a drilling and anchoring device
A jacket tube for a device for drilling holes and forming an anchorage in the earth or rock. The jacket tube is coupled with a drill pipe and/or a drill bit or a drill hammer and is configured with...
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