SEALING DEVICE FOR POSITIONING POINTS IN HOLES OF PROCESS GROUTING

BOLTING RIG AND METHOD FOR ROCK REINFORCING

ROCK BOLTING RIG AND METHOD FOR ROCK REINFORCING

BOLTER

METHOD AND SYSTEM FOR AUTOMATICALLY COLLECTING MULTIPLE INFORMATION OF TUNNEL DURING CONSTRUCTION PERIOD

CONTROL APPARATUS AND METHOD FOR BUOYANCY ADJUSTMENT OF SHIELD TUNNEL SEGMENTS

Carbon Fiber Rock Bolt

DRILLING AND BOLTING TOOL

BOLTER

Bolter

METHOD AND SYSTEM FOR TEMPORARY COATING SUPPORTING AND PERMANENT BOLT SUPPORTING

Deformed hollow rock bolt

Method of no-pillar mining with gob-entry retaining adapted for fully-mechanized top coal caving in thick coal seam

Bolter

Bolter

GROUT HEAD AND METHOD FOR SUPPRESSSING LEAKS AT ROCK FACES, IN MINES, MINING AND IN CIRCUMSTANCES REQUIRING SEALING OF CRACKS AS REQUIRED TO SUPPRESS LEAKING

Anti-seismic support method for mine shaft

Umbrella-shaped anchor for quick reinforcement of rock mass, and application method

FEED APPARATUS AND METHOD FOR FEEDING CEMENT TO A CEMENT SILO

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

Anchoring apparatus and operation method thereof

Grouting anchor bolt and grouting anchor cable for supporting of large deformation and constant resistance and quantitative roadway supporting method

Rock bolt

Reaming and self-rotating anchor rod and using method thereof

Adapted rock bolt with improved installation properties

Method for rock burst prevention by active support reinforcement and active pressure relief

Pneumatic drill installed rock anchor

METHOD AND SYSTEM OF COAL MINE ROOF STABILIZATION

Full-roadway full-process full-cross-section surface deformation monitoring device and method

Grout delivery system

Tunnel construction method using pre-support and post-support and apparatus suitable for same

Radially expansible rock bolt

Ground reinforcement structure and construction method thereof

ROCK BOLT WITH ELONGATING SECTION

METHOD FOR TESTING THE BONDING STRENGTH OF ROCK BOLT-GROUT-SURROUNDING ROCK

Method of supporting a rock wall

Arrangement for rock bolts and a method for the use of the arrangement, and a reinforcement system comprising such an arrangement

End coupling for a rock bolt

Spring suspension clip

BREATHER TUBE INDICATOR

CABLE BOLT

Method and system of coal mine roof stabilization

Self-drilling rock bolt assembly and method of installation

Arrangement and method for positioning cartridges for a rock grouting equipment

Rock anchor bolt

Method and system of coal mine roof stabilization

Rock anchoring system and method

Anchor rod

Anchor, especially a rock anchor

De-duplication data bank

Rock bolt

Fully grouted mine roof bolt with expansion anchor

FRICTION STABILISER

Re-tensionable cable bolt apparatus and related method

SELF DRILLING ROCK BOLTING

PLASTIC ROCK-BOLT OR DOWEL AND METHOD OF MANUFACTURING OF THE SAME

Self-drilling fastening element

Cement silo structure for mining machine

Anchor with grout jacket

Self-drilling connection anchor

Fastening element

Re-tensionable cable bolt apparatus and related method

Extrusion device

Affixing an anchor in a drilled hole

Rock bolting system

Method for fastening anchoring means and device suitable for this purpose

Bonding anchor

Method and apparatus for testing installation quality in a grouted anchor system