| Patents for E21D 20 - Setting anchoring-bolts (3,685) |
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| 02/16/2011 | CN101169036B Pedrail type lifting top slope anchor shaft anchor cable construction drilling machine and single-alley fast tunneling technique |
| 02/15/2011 | US7887263 Ground anchor |
| 02/14/2011 | CA2713057A1 Anchoring sleeve |
| 02/10/2011 | WO2011016826A1 Tensionable tubular resin anchored tubular bolt and method |
| 02/10/2011 | US20110033246 Tensionable tubular resin anchored tubular bolt and method |
| 02/10/2011 | CA2763179A1 Tensionable tubular resin anchored tubular bolt and method |
| 02/09/2011 | CN101967989A Crawler travel anchor transporting machine |
| 02/09/2011 | CN101967984A Deep well tunnel cable anchor rigid-flexible coupling support and surrounding rock overall reinforced support method |
| 02/09/2011 | CN101967983A Method for over-dredging, anchoring, backfilling and controlling deep well rock roadway floor heave |
| 02/08/2011 | CA2432835C Yielding strata bolt |
| 02/02/2011 | CN201730539U Anchor rod machine |
| 01/26/2011 | CN101956561A Expanding grouting bolt |
| 01/26/2011 | CN101956560A Stop-grouting plug safety separation device for subvertical ground pre-grouting engineering |
| 01/26/2011 | CN101395342B Spray nozzle for resin |
| 01/19/2011 | CN201714407U Metering machine for hole washing and water pressing of prestressed anchor cable |
| 01/19/2011 | CN201714406U Tray box of energy accumulating and impact preventing anchor rod |
| 01/19/2011 | CN101949295A Method for reinforcing laneway |
| 01/19/2011 | CN101949294A Prestressed full-length anchorage support method |
| 01/19/2011 | CN101250983B Single tube all-directional drilling injection slip-casting drilling bit capable of fluid-control starting and stopping auxiliary slip-casting hole |
| 01/12/2011 | CN201705373U Truss combined tray used for digging and mining working face |
| 01/12/2011 | CN101943013A Dynamic/static combined support method for rock burst of roadway |
| 01/12/2011 | CN101943012A Torque-adjustable multiplier |
| 01/12/2011 | CN101942837A Artificial drilling clamp |
| 01/12/2011 | CN101338679B Deep well great section loose wall rock laneway support method |
| 01/06/2011 | WO2011000024A1 A plug |
| 01/06/2011 | US20110002746 Method of Assessing a Multilayer Strata for Rock Bolt Installation |
| 01/05/2011 | EP1546508B1 Rock bolt post grouting apparatus |
| 01/05/2011 | CN201696069U Device for avoiding wall caving and roof cutting |
| 01/05/2011 | CN201696068U Cage-shaped mining anchor cable |
| 01/05/2011 | CN201696065U Forepole bar for driving face anchor bolt support |
| 01/05/2011 | CN201695944U Side motor arrangement type high-efficiency pneumatic jumbolter |
| 01/05/2011 | CN201695940U Side motor arrangement type pneumatic jumbolter |
| 01/05/2011 | CN101936174A Synchronous clamping device driven by floating single cylinder |
| 01/05/2011 | CN101936173A Roof bolting cable bolt feeding device |
| 12/29/2010 | WO2010148421A1 Grout plug |
| 12/29/2010 | CN201687495U Truss interlocker |
| 12/29/2010 | CN201687494U Reducing anchor rod |
| 12/29/2010 | CN101929340A Coal mine underground flat inclined tunnel pipe shed pre-grouting advance support construction process |
| 12/22/2010 | CN101925721A Anchor tube and method for production thereof |
| 12/22/2010 | CN101925720A Injection spigot |
| 12/15/2010 | CN201671538U Anchor drill |
| 12/15/2010 | CN101915112A Strong-side and strong-corner coal entry anchor rod support method |
| 12/15/2010 | CN101915111A Engagement head for tensioning assembly |
| 12/15/2010 | CN101915108A Method for controlling floor heave of dynamic pressure tunnel |
| 12/15/2010 | CN101915097A Machine-mounted tunneling, drilling and anchoring comprehensive integrated operation device |
| 12/15/2010 | CN101389827B Injection bolt with a fixed static mixer and its production method |
| 12/09/2010 | US20100310323 Rock bolt assembly |
| 12/09/2010 | US20100310322 Mechanically stabilized earth connection apparatus |
| 12/09/2010 | DE102010009106A1 Klebanker mit integrierter Klebsäule und im Ankerrohr verschiebbarem Auspresskolben Adhering anchor with integrated Klebsäule and sliding in the anchor pipe extrusion piston |
| 12/08/2010 | CN201666162U Anchor pile limiter |
| 12/08/2010 | CN101910560A Steel pipe for reinforcing foundation, method of reinforcing foundation using the same, and method of reinforcing structure |
| 12/08/2010 | CN101910558A Advancing machine |
| 12/08/2010 | CN101906981A Wall caving and crest truncation prevention device |
| 12/08/2010 | CN101906980A Arm-power type thread fastening piece tightening device |
| 12/08/2010 | CN101906977A Method for preventing and treating large deformation and collapse of softrock tunnel |
| 12/08/2010 | CN101476466B Giant heavy laver land slide pre-stress anchor cable antiskid tunnel construction method and novel prevention structure |
| 12/02/2010 | DE102009026478A1 Befestigungselement mit einem Grundkörper für den Einsatz im Berg- und Tunnelbau Fastener having a body for use in mining and tunneling |
| 12/01/2010 | CN201661310U Waste rock roadside filling extruded formwork |
| 12/01/2010 | CN201661305U Friction type anchor rod capable of being recovered |
| 12/01/2010 | CN201661303U Force-measuring supporting plate |
| 12/01/2010 | CN201661302U Auxiliary anchor rope installing system |
| 12/01/2010 | CN101903614A Method and devices for handling rod-like pieces in drilling and bolting |
| 12/01/2010 | CN101899987A Coal mine roadway deep support construction method |
| 12/01/2010 | CN101041745B Water-resistant type resin anchoring agent |
| 11/30/2010 | US7841803 Device for rock bolting and for automized rock bolting and rock bolting method |
| 11/25/2010 | WO2010133883A2 Rock bolt with separate mixing-and discharge head |
| 11/25/2010 | DE102010004926A1 Gebirgsanker (Klebanker) mit gesondertem Misch- und Austragskopf Rock bolts (glue) with separate mixing and discharge head |
| 11/25/2010 | DE10106695B4 Bohrkrone für einen Bohr- oder Injektionsanker Drill bit for drilling or injection anchor |
| 11/24/2010 | CN201650320U Hollow rapid hardening resin capsule used for grouted anchor bar sealing |
| 11/24/2010 | CN201650319U Angle installer for anchor bolt |
| 11/24/2010 | CN201650122U Anchor rod drill with composite sheet |
| 11/24/2010 | CN201650113U Pneumatic anchor drill |
| 11/24/2010 | CN101892853A Lithification reinforcing structure and lithification reinforcing method thereof |
| 11/24/2010 | CN101892852A Self-anchored emergency anchor rod and installation method thereof |
| 11/24/2010 | CN101892851A Metal mine anchor rod support method |
| 11/18/2010 | US20100290841 Method for fixing a cable or tendon |
| 11/17/2010 | EP2251526A2 Self-drilling anchoring element |
| 11/17/2010 | CN201635750U Novel resin anchor-rod installer |
| 11/17/2010 | CN201635749U Torque amplifier |
| 11/17/2010 | CN201635656U Side-propping anchor rod-anchor cable construction drill carriage with three movable arms |
| 11/17/2010 | CN201635655U Side-propping anchor rod-anchor cable construction drill carriage with two movable arms |
| 11/17/2010 | CN101886519A Anchor rod drilling machine capable of monitoring working state of drill hole, and monitoring device thereof |
| 11/17/2010 | CN101463722B Roof bolter mechanism |
| 11/11/2010 | WO2010128943A1 Method, system, use of the system and reinforcement member for rock reinforcement |
| 11/11/2010 | US20100282513 Method and device for drilling a hole in ground or rock material and forming a brace |
| 11/11/2010 | DE112008002251T5 Gesteinsbolzen mit mechanischem Anker The rock bolt with mechanical anchors |
| 11/11/2010 | DE102009002951A1 Selbstbohrendes Befestigungselement Self-drilling fastener |
| 11/11/2010 | CA2761021A1 Method, system, use of the system and reinforcement member for rock reinforcement |
| 11/10/2010 | CN201627595U Mixing stopper for anchor cable |
| 11/10/2010 | CN201627539U Narrow multi-angle drill rig device |
| 11/08/2010 | CA2703432A1 Self-drilling fastening element |
| 11/03/2010 | CN201620901U Novel nut for supporting anchor rod |
| 11/03/2010 | CN101876246A Coal road high-speed drivage single-arm outburst-preventing drilling anchor machine of high gas and outburst mine |
| 11/02/2010 | CA2553344C Rockbolts made of high-strength steel pipes and method of manufacturing thereof |
| 10/27/2010 | CN201614887U 一种履带式钻锚机 One kind of crawler drill windlass |
| 10/27/2010 | CN101871353A Method for soft rock roadway grouting and full-length prestress baseboard anchor cable comprehensive support |
| 10/27/2010 | CN101871317A Anchor rod drilling machine |
| 10/26/2010 | US7819609 Automated, low profile drilling/bolting module with single button operation |
| 10/26/2010 | CA2494781C Rock bolt post grouting apparatus |
| 10/26/2010 | CA2456583C A grouted friction stabiliser |