| Patents for E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining protection (4,377) |
|---|
| 03/06/2013 | CN102953744A Hollow grouting yielding anchor rod |
| 03/06/2013 | CN102953743A Intelligent control resistance increasing large-deformation anchor rod and application method thereof |
| 03/06/2013 | CN102953377A Pressure-release anchor cable |
| 03/06/2013 | CN101849084B Powder-actuated mechanical lock concrete anchor |
| 03/05/2013 | CA2682804C Mine roof bolt with resin control surface |
| 02/28/2013 | WO2013028754A1 Self-drilling friction bolt |
| 02/28/2013 | CA2846097A1 Self-drilling friction bolt |
| 02/28/2013 | CA2751278A1 Strain measuring and monitoring device |
| 02/27/2013 | CN202755999U Hydraulic anchor rod retracting device |
| 02/27/2013 | CN202755998U Root pile type support device combined by locking steel pipe and hollow grouted anchor bolt |
| 02/27/2013 | CN202755997U Water expansion anchor and connector matched with water expansion anchor |
| 02/27/2013 | CN202755996U Easily detachable anchor rod with no anchor tail |
| 02/27/2013 | CN202755980U Tunnel supporting structure suitable for warm permafrost region |
| 02/27/2013 | CN102943681A Method and device for supporting weak adhesion bond soft rock roadway |
| 02/20/2013 | CN202745913U Pressure-proof air door for underground coal mines |
| 02/20/2013 | CN202745900U Improved steel bar ladder beam |
| 02/20/2013 | CN202745899U Cage-handle anchor rod |
| 02/20/2013 | CN202745898U Deep soft rock tunnel tensile reinforced concrete spraying body supporting structure |
| 02/20/2013 | CN102937030A Bolting-grouting integrated support method for zonal disintegration of deep roadway surrounding rock |
| 02/20/2013 | CN102937029A Ultralong hollow spiral grouting anchor rod connection piece |
| 02/14/2013 | DE102012015673A1 Vorrichtung für eine Stützsäule für ein nicht tragfähiges Erdreich Device for a support pillar for a non-viable soil |
| 02/13/2013 | CN202731994U Coal mine tunnel top layer pressure detecting system |
| 02/13/2013 | CN202731958U Mine thermoplastic antiseptic anchor rod support device |
| 02/13/2013 | CN202731957U Mine controllable air pressure support auxiliary device |
| 02/13/2013 | CN202731956U Deviation preventing anchor rod |
| 02/13/2013 | CN202731955U Device for preventing roof of crossed great section cave dwelling room from collapsing |
| 02/13/2013 | CN202731954U Truss capable of preventing cusp stress concentration |
| 02/13/2013 | CN102926776A Continuous and multilayer pre-support method of short downward anchor cable |
| 02/12/2013 | CA2541803C Anchor assembly |
| 02/12/2013 | CA2518290C Apparatus and method for manufacturing a rock bolt |
| 02/06/2013 | CN202718693U Ring-shaped pressure-buffering shock-absorbing device for support of anchor stock or anchor cable |
| 02/06/2013 | CN102913256A Pentagram-shaped support structure for granite residual soil tunnel and method therefor |
| 01/31/2013 | US20130028667 Anchor tendon with selectively deformable portions |
| 01/30/2013 | CN202707098U Anticorrosion anchor cable for mine |
| 01/30/2013 | CN202707097U Pipe seam type deformation anchor rod |
| 01/30/2013 | CN202707075U Long-span subway station main structure constructed based on column and arch method |
| 01/30/2013 | CN102900449A Support method for underground goaf roof of coal mine |
| 01/30/2013 | CN102900448A Anti-self-locking anchor-bolt support plate |
| 01/30/2013 | CN102140796B Intelligent fiber reinforced plastic (FRP) anchor rod |
| 01/30/2013 | CN101824996B Expansion shell type anchoring head and anchor rod with the same |
| 01/29/2013 | CA2530323C Rock bolt |
| 01/23/2013 | EP2547867A1 A yielding spiral bolt appendage for a rock bolt |
| 01/23/2013 | CN202690096U Fiber bragg grating force-measuring anchor rod |
| 01/23/2013 | CN202690095U Pre-stress anchor rod for underground engineering model test |
| 01/23/2013 | CN202690089U Forepoling bar type temporary support device used in anchor bolt support roadway construction |
| 01/23/2013 | CN202690082U Combined steel frame structure for preventing deformation and subsidence of tunnel |
| 01/23/2013 | CN102071955B Soft outburst coal seam tunneling reserved coal body reinforcement and outburst-proof method |
| 01/22/2013 | CA2690916C A grouted friction stabiliser |
| 01/16/2013 | CN202673311U Anchor cable combined support device for keeping loose and broken top coal separation layer of full coal roadway stable |
| 01/16/2013 | CN202673310U Novel steel belt |
| 01/16/2013 | CN202673309U Combination type high-strength grouting anchor cable |
| 01/16/2013 | CN202673299U Double-layer mold constructing composite lining supporting structure of weak surrounding rock tunnel |
| 01/16/2013 | CN202673229U High-pressure filling hole sealing device |
| 01/16/2013 | CN102877871A Yield anchor cable spherical rotating and aligning device |
| 01/16/2013 | CN102877870A Static and dynamic combined intelligent pre-warning anchor rod |
| 01/16/2013 | CN102877869A Grout plugging yielding tray for grouting anchor rod or anchor cable and usage method thereof |
| 01/16/2013 | CN102877868A Novel expansion-type yielding prestress grouting anchor rope and using method thereof |
| 01/16/2013 | CN102877867A Novel inflatable yielding pre-stress grouting anchor rod and usage method thereof |
| 01/16/2013 | CN102877858A Reinforcing method for crushed top plate of coal face |
| 01/16/2013 | CN102877854A Double-layer molded composite lining for weak surrounding rock tunnel |
| 01/16/2013 | CN102200019B Tunnel boring machine middle-plate stepping reinforcing support mechanism and construction method thereof |
| 01/16/2013 | CN102108198B Manufacturing method of compound material supporting plate |
| 01/10/2013 | US20130011205 Strand anchor |
| 01/10/2013 | DE102011078767A1 Litzenanker Strand |
| 01/09/2013 | EP2543817A2 Strand anchor |
| 01/09/2013 | CN202659265U Anchor bolt support structure of steeply inclined small-intersection-angle layered surrounding rock tunnel |
| 01/09/2013 | CN202659264U Wall-caving-resistant structure of coal mine anchor rod for supporting and protecting coal roadway driving work face |
| 01/09/2013 | CN202659251U Reinforcing connecting device of tunnel soft-weak/loess surrounding rock steel arch and locking foot anchor pipe |
| 01/09/2013 | CN202659246U Combined structure of duct piece lining structure and anchor rods |
| 01/09/2013 | CN102865088A Tension and compression coupling type high-strength and high-deformation anchor rod and method for using same |
| 01/08/2013 | CA2542261C Method and device for installing a self-drilling expandable rock bolt and a self-drilling expandable rock bolt |
| 01/03/2013 | WO2013002711A1 Expandable mine bolt |
| 01/03/2013 | CA2840168A1 Expandable rock bolt |
| 01/02/2013 | CN202645606U Cantilever type heading machine vehicle-mounted matched supporting and anchoring system |
| 01/02/2013 | CN202645604U Double-layer anchor tray |
| 01/02/2013 | CN202645603U Recoverable anchor rod for grouting |
| 01/02/2013 | CN202645599U Adjustable combined member for surface protection |
| 01/02/2013 | CN102852539A Resin bolting ejector anchor net roadway support method |
| 01/02/2013 | CN102852533A High-strength three-dimensional support system of yielding type restriction concrete lagging jack |
| 01/02/2013 | CN102852528A Method for controlling floor heave through inverted arch anchoring beam |
| 12/26/2012 | CN202628141U Anchor rod anchoring terminal |
| 12/26/2012 | CN202628140U Anchor rod system matched with digging and anchoring integral machine |
| 12/26/2012 | CN202628139U 钻孔锚杆 Drilling anchor |
| 12/26/2012 | CN202628138U L-shaped connecting piece for steel support and feet-lock anchor rod |
| 12/26/2012 | CN202628137U Anchor bolt with pressure releasing device |
| 12/26/2012 | CN202628136U Enhanced fiber reinforced plastic anchor rod |
| 12/26/2012 | CN202628135U Fiber reinforced plastic anchor bolt with thin film |
| 12/26/2012 | CN202628134U High-strength metallic thick-tail yielding anchor rod |
| 12/26/2012 | CN202628133U Anchor rod stirring sleeve tube for anchor rod drilling machine |
| 12/26/2012 | CN202628132U Spiral fin grouting anchor rope assembly with self-adjustable angle |
| 12/26/2012 | CN202628131U High-strength anchor-assistant supporting plate |
| 12/26/2012 | CN202628130U Self-propelled type anchor drill rod |
| 12/26/2012 | CN202628123U Large-section fault fracture zone tunnel mud burst processing structure |
| 12/26/2012 | CN202626983U Top arch tube type anchor rod |
| 12/26/2012 | CN102839984A Oversized-section underground supporting structure |
| 12/26/2012 | CN102839981A Backfilling stand shoring system of three-dimensional prestress wire of deep soft rock roadway |
| 12/26/2012 | CN102128035B Construction method of bilateral biased small-clear distance tunnel |
| 12/25/2012 | US8337120 Deformable rock bolt |
| 12/20/2012 | WO2012171155A1 Constant-resistance and large deformation anchor cable and constant-resistance device |
| 12/19/2012 | CN202611730U Detachable lock plate |