| Patents for E21D 20 - Setting anchoring-bolts (3,685) |
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| 03/12/2014 | CN203476367U Rapid underground anchor pole installer |
| 03/12/2014 | CN203476347U Preliminary bracing device for collapsible loess tunnel |
| 03/12/2014 | CN103628903A Roadway full-fracture-surface anchoring-rod and anchoring-rope integrated parallel installation method and device |
| 03/06/2014 | WO2014035317A1 Method pertaining to a rock bolting configuration, a rock bolting configuration, a vehicle comprising a rock bolting configuration and a computer program product |
| 03/06/2014 | WO2014035316A1 Method, device and vehicle for rock bolt setting as well as computer program product |
| 03/05/2014 | CN203463124U Length-measurable grouting pipe |
| 03/05/2014 | CN203463123U Pushing expansion grouting-stop plug for hollow grouting anchor cable |
| 03/05/2014 | CN103615273A Square steel confined concrete arch center wall back filling bolting-grouting support system and construction method |
| 03/05/2014 | CN103615272A Hollow anchor rod with rebar framework and construction method of hollow anchor rod |
| 03/05/2014 | CN103615265A Horizontal whirl spraying construction method of soft rock tunnel |
| 03/05/2014 | CN103613322A Composite resin anchoring agent and anchoring method thereof |
| 03/05/2014 | CN102587943B Method for quickly mounting capsule resin on separation area of top plate |
| 02/27/2014 | WO2014028973A1 A packing plug |
| 02/27/2014 | WO2014028966A1 A cable bolt assembly |
| 02/27/2014 | WO2013110104A3 Tunnelling or extraction machine with an anchor-setting device and support manipulator or supporting device |
| 02/26/2014 | CN203452802U Layer supporting structure for extra-large section of coal mine |
| 02/26/2014 | CN203452643U Anchor rod drill carriage for coal mines |
| 02/26/2014 | CN103603684A Large-deformation pre-stressed anchor bolt |
| 02/26/2014 | CN103603683A Bag type grouting anchoring device and anchoring method |
| 02/26/2014 | CN103603675A Supporting method of permeable soft broken rock stratum roadway |
| 02/26/2014 | CN102562105B Support construction method for long anchor cable for underground mine |
| 02/19/2014 | CN203441512U Air leg air drill type resin anchor bolt feeding device for tunnel supporting |
| 02/19/2014 | CN103590843A Full-thread anchor rod pre-tightening force exertion device capable of rapidly hauling off anchor rod and operation method |
| 02/19/2014 | CN103590842A Full-thread anchor rod pre-tightening force exerting device capable of achieving automatic anchor unloading and operation method |
| 02/18/2014 | US8651769 Friction bolt |
| 02/13/2014 | DE102012107238A1 Method for chemical anchoring of anchor rod into anchor hole in mooring bed, involves bonding closure to opening of anchor hole that surrounds edge of substrate such that rotor mass is inserted into anchor hole through closure |
| 02/12/2014 | CN203430540U Anchoring agent injecting plug |
| 02/12/2014 | CN203430527U Shield type continuous tunneling and anchoring machine |
| 02/12/2014 | CN103573280A Method for supporting porous ooze invasion compound roof roadway |
| 02/12/2014 | CN103573279A Mining telescopic energy adsorption anti-impact viscous damping anchor rod and supporting method thereof |
| 02/12/2014 | CN103573278A Gantry self-traveling type anchor supporting machine |
| 02/12/2014 | CN103572757A Multi-level back-grasp-type hollow anchor rod and construction method thereof |
| 02/12/2014 | CN102317573B Yielding bolt and assembly |
| 02/12/2014 | CN102031982B Tunneling construction technology by adopting composite tooth support through mining method |
| 02/11/2014 | US8647020 Plastic cable bolt button |
| 02/05/2014 | CN203420721U Grouting anchor rod grout-stopping tray for tunnel |
| 02/05/2014 | CN103562499A Anchoring systems for mines |
| 02/05/2014 | CN103562498A A mine bolter |
| 02/05/2014 | CN103557019A Bolting machine regulating rack |
| 02/05/2014 | CN103557018A Multifunctional rock tunnel borer jumbolter rotation rack |
| 02/05/2014 | CN103557008A Thin-walled metal structure and tunnel anchoring surrounding rock coupled anti-scour supporting structure |
| 01/30/2014 | US20140030030 Mine bolter |
| 01/29/2014 | CN203412603U Deep roadway large-torque two-side high-prestress anchor rod mounting machine |
| 01/29/2014 | CN203412602U Deep roadway large-torque top plate high-prestress anchor rod mounting machine |
| 01/29/2014 | CN203412509U Base plate anchoring drilling machine |
| 01/29/2014 | CN103541739A Shallow-buried long-span small-clear-distance loess tunnel supporting system |
| 01/29/2014 | CN102425439B Method for reinforcing bidirectional staged stretched anchor cable of preset steel strand |
| 01/28/2014 | US8636083 Rock drilling device |
| 01/22/2014 | CN203403899U Mining resin anchor bolt box |
| 01/22/2014 | CN203403898U Anchor rod positioning device and anchor rod |
| 01/22/2014 | CN203403815U Drilling rig slide platform of hydraulic anchor rod drill carriage for coal mine |
| 01/22/2014 | CN103527231A Preparation method of analog simulation model used for roadway supporting test |
| 01/22/2014 | CN103527230A Anchor bolt recycling device |
| 01/22/2014 | CN103527229A Anchoring agent protecting and breaking device of anchor rope and anchoring method |
| 01/22/2014 | CN103527228A Self-propelled type temporary support and anchor support machine for coal mine roadway |
| 01/22/2014 | CN103527199A Gob-side entry driving surrounding rock deformation control method for island mining face narrow coal pillar |
| 01/21/2014 | US8632281 Mechanically stabilized earth system and method |
| 01/21/2014 | US8632280 Mechanically stabilized earth welded wire facing connection system and method |
| 01/21/2014 | US8632278 Mechanically stabilized earth welded wire facing connection system and method |
| 01/16/2014 | WO2014011100A1 Method and rock bolting rig for installation of a rock bolt |
| 01/16/2014 | WO2014011028A1 Method for stabilizing soil |
| 01/15/2014 | CN203394554U Sticky composite assembled recoverable anchor rod |
| 01/15/2014 | CN203394553U Universal type mining anchor-rope anchor winding and unwinding device |
| 01/15/2014 | CN203394535U Folding gripper |
| 01/15/2014 | CN102606154B Coal roadway tunneling machine with double round cutter heads |
| 01/15/2014 | CN102606153B Fully sealed coal roadway tunneling and anchoring synchronous machine |
| 01/15/2014 | CN102606152B Novel quick digging and anchoring integrated machine for rectangular coal roadway |
| 01/15/2014 | CN102364048B Comprehensive mechanized rock roadway tunneling machine |
| 01/15/2014 | CN102003194B Rapid installation process of resin anchor bar and device thereof |
| 01/09/2014 | US20140010598 Rock Bolt |
| 01/08/2014 | CN103498690A Double-anchor-cable combination locking device and method thereof |
| 01/08/2014 | CN103498689A Anchor cable slip casting hole packer |
| 01/08/2014 | CN103498688A Anchor rod slip casting hole packer |
| 01/08/2014 | CN103498687A Device and method for hole sealing of grouting anchor rod |
| 01/08/2014 | CN102678121B Layered top-controlling filling mining method for residual ores in deep hole in diskless area |
| 01/08/2014 | CN102518436B Method for controlling tectonic rock burst in coal mine tunneling |
| 01/08/2014 | CN102364054B Side anchor rod machine and heading-anchoring machine |
| 01/01/2014 | EP2678528A1 Rock bolt |
| 01/01/2014 | CN203374284U Soft rock roadway totally-closed fracture surface arching support |
| 01/01/2014 | CN203374283U Pipe-jacking structure applied in tunnel engineering |
| 01/01/2014 | CN103485810A Anchor rope anchoring end device with reverse grab and anchoring method |
| 01/01/2014 | CN103485808A Electro-osmosis home position modified roadway anchoring method of underground swelling soft rock |
| 01/01/2014 | CN103485717A Fully-hydraulic four-arm anchor rod/anchor cable drill carriage |
| 12/25/2013 | EP2675998A1 A mine bolter |
| 12/25/2013 | CN203362193U Uniform tensioning device for anchor cable |
| 12/25/2013 | CN203362192U Resin anchor bolt feeding device and resin anchor bolt clamp |
| 12/25/2013 | CN203362191U Rock bolting jumbo propulsion device |
| 12/25/2013 | CN103470287A Sounding grouting pipe and sounding method |
| 12/25/2013 | CN103470286A Gob-side entry retaining method realizing support by intercepting self-slip gangue through strip reinforcing steel bar mesh |
| 12/25/2013 | CN103470275A Method for excavating and supporting large-span level-crossing fork of underground chamber |
| 12/25/2013 | CN102606178B Special sprayer for long anchor cable support in underground mine and rapid support method |
| 12/24/2013 | US8613572 Self-venting chemical anchoring assembly with splash guard |
| 12/18/2013 | CN103452585A Monorail crane with anchor protection mechanism |
| 12/11/2013 | CN203335741U Torque amplifier for jumbolter |
| 12/11/2013 | CN103437796A Zero-torque anchor rod pre-tightening machine tool |
| 12/11/2013 | CN103437795A Rapid advance support method for longitudinal and circumferential anchor block combination |
| 12/10/2013 | US8602690 Sleeved cable bolt |
| 12/04/2013 | CN203321554U Leg type roofbolter |
| 12/04/2013 | CN203321553U Anchor net clasp joint spanner |
| 12/04/2013 | CN203321541U Soft rock roadway supporting device |