Rock Bolt Device with Replaceable Head

Dolly for Rockbolt

A Mine Bearing Element

ROCK BOLT

TUNNEL CONSTRAINT ANCHOR CABLE AND METHOD FOR IMPROVING STABILITY OF INITIAL SUPPORT STRUCTURE

Dolly for Rockbolt

Multi-stage pressure yielding and anti-impact device for anchoring support

MINE ROOF REINFORCING SYSTEM AS LOAD INDICATOR

System and method for supporting sidewalls or ribs in coal mines

Grouting bolt-cable composite beam and supporting method for advanced support of fractured surrounding rock in deep coal mines

System and method for supporting sidewalls or ribs in coal mines

Recyclable sand-consolidated anchor head prestressed anchor, anchorage jack and its application method

Self-drilling differential grouting combined bolt and anchoring method therefor

Friction bolt

System for re-tensioning mine roof channels

Yieldable Bearing Block

Friction bolt

Anti-spalling blocking bar for large cross-section coal gallery excavation work surface and supporting method

Improved Drilling Assembly Comprising a Friction Bolt

Method of supporting a rock wall

Bolt plate magazine and centralizer

Rib strap

MULTIPLE-POINT ANCHORED ROCK BOLT

Anti-Friction Washer System

Connection means with shape memory

MACHINE AND METHOD FOR INSTALLING ROCK BOLTS

MINE ROOF AND RIB SUPPORT

Assembly for connecting rebar segments

Assembly and method for anchoring rebar to a mass

Oval Pan and Pan System for Rib and Roof Surface Control in Subterranean Excavation Applications

Mine roof bolt assembly

Alpine anchor for anchoring threaded rods in soil or rock

Tandem Plate for Friction Rock Stabilizer

Method of using a dome headed roof bolt

Fiberglass roof and rib plate

Rock anchor cable

CRIMPED CABLE BOLT HEAD AND ASSEMBLY

STACKABLE MINE ROCK SHIELDS

DOME MINE ROOF PLATE

Anchor with grout jacket

Resin Mixing and Cable Tensioning Device and Assembly for Cable Bolts

Resin Mixing and Cable Tensioning Device and Assembly for Cable Bolts

Ground anchor or rock anchor with an anchor tension member comprised of one or more individual elements with corrosion-protected anchor head design

Dome headed roof bolt

System and method for mine roof counter bore and cable bolt head securement therein

Countersink roof bit drill and method for using the same

Method for supporting a subsurface material

System and method for mine roof counter bore and cable bolt head securement therein

Bearing plate having tab

Method and device for stabilizing a cavity excavated in underground construction

Roof bolt bearing plate and method for an underground mine

Ground anchor device