Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21D - Shafts; Tunnels; Galleries; Large underground chambers › E21D 20 - Setting anchoring-bolts
Patents for E21D 20 - Setting anchoring-bolts (3,685)
10/2012
10/27/2012CA2746629A1 Apparatus and method for anchor bolt grouting
10/24/2012CN202500562U Excavating, supporting and anchoring parallel operating system
10/24/2012CN102748048A Hole wall grouting anchor cable
10/24/2012CN102748045A Crank-type anchor rod fastener
10/24/2012CN101701505B Sleeve pore-fixing device and method
10/23/2012CA2707337C Method and devices for handling rod-like pieces in drilling and bolting
10/23/2012CA2533999C Improved cable bolt
10/17/2012CN202493279U Anchor rod cartridge installation machine
10/17/2012CN102733834A Roof supporting method
10/17/2012CN102733832A Support method for extra-thick broken coal seam employing nest anchored ropes
10/17/2012CN102733825A Method for concrete pipe segment lining structure capable of adapting to surrounding rock deformation
10/17/2012CN102733815A Full-face rectangular hard rock tunneling and anchoring integrated machine
10/11/2012WO2012083342A9 Rock bolt
10/11/2012WO2012013968A3 Resin system and rock anchor
10/10/2012CN202483438U Anchor rod drill rig
10/10/2012CN1791734B Controlled expansion of rock bolt
10/04/2012US20120247836 Mining machine with booms providing enhanced rib access
10/03/2012CN202467873U Grouting machine
10/03/2012CN202467664U Hollow anchor rod drill bit
10/03/2012CN102713144A Compact selective roadheader
10/03/2012CN102704970A Pre-stressed anchor rod for underground engineering model test and operation method for pre-stressed anchor rod
10/03/2012CN102704969A Recoverable anchor rod for drilling, anchoring and grouting and supporting method thereof
10/03/2012CN102704968A Structure and method for preventing large deformation slippage of lateral wall of high stress tunnel
10/03/2012CN102704967A A structure and method for preventing collapse of chamber roof with crossed big sections
10/03/2012CN102704966A Automatic anchor rope tensioning instrument
10/03/2012CN102704965A Method for preventing tunnel top plate collapse risk caused by severe mining
10/03/2012CN102704929A Digging and anchoring machine integrated with digging, anchoring and drilling
10/03/2012CN102704478A Building anchor rod construction technology
10/02/2012US8277148 Re-tensionable cable bolt apparatus and related method
09/2012
09/27/2012WO2012126042A1 Inflatable friction bolt
09/27/2012US20120243947 Rock Anchor Bolt
09/27/2012US20120243946 Filling of partitioned film packages for anchoring systems for mines
09/27/2012DE102011005960A1 Klebstoffpackung und deren Verwendung mit einem Verankerungselement Adhesive packing and their use with an anchoring element
09/27/2012DE102011005855A1 Gesteinsanker Rock bolts
09/26/2012EP2503097A2 Adhesive packaging and use of same with an anchoring element
09/26/2012EP2503096A2 Rock bolt
09/26/2012CN202451183U Operating mechanism of 180-DEG bolting jumbo for coal mine
09/26/2012CN202451165U Strengthening device for installing old tunnel electrification lifting column
09/26/2012CN202451053U 180-degree anchor rod drill carriage for coal mine
09/26/2012CN202450531U Integrated grouting machine with stirring screw rod
09/23/2012CA2772449A1 Adhesive package and use thereof with an anchoring element
09/19/2012EP2499333A2 Compact roadheader
09/19/2012CN102678145A Efficient novel construction method for resin anchor rod
09/19/2012CN102678144A Device employed to assist installation of anchoring agent
09/19/2012CN102678143A Special variable angle tensioning device for double-ring pre-stressed anchor for circular tunnel
09/19/2012CN102678142A Multi-directional inclined combination type anchoring system for horizontal lamellar surrounding rock of tunnel and mounting method thereof
09/19/2012CN102678134A Collapse and sink intrusion limit construction method for treating wind accumulated sand loess tunnel through stride shed pipe
09/19/2012CN102678121A Layered top-controlling filling mining method for residual ores in deep hole in diskless area
09/19/2012CN102678040A Drilling device and method for baseplate in coal mine roadway
09/12/2012CN202431183U Anchor rod drilling machine
09/12/2012CN102661158A Coal-rock composite roof difference scale anchor rod combined supporting method
09/12/2012CN102661157A Anchoring lock rise pressurizer for excavator
09/12/2012CN102661156A Special combined steel mold plate for anchor groove of double-ring prestressed anchor rope in round tunnel
09/12/2012CN102661144A Method for determining anchoring depth of anchor cable along deep lane wall of empty crossheading entity coal side
09/05/2012DE202011101508U1 Injektionsanker Injection anchor
09/05/2012CN202417551U Soft rock roadway supporting structure with sensors and capable of being grouted repeatedly
09/05/2012CN202417550U Soft rock roadway supporting structure capable of being grouted repeatedly
09/05/2012CN202417549U Single-action anchor cable tensioning device capable of resetting automatically
09/05/2012CN202417548U Pre-evacuated soft rock roadway support structure
09/05/2012CN102654060A Tunnel excavation staggered type supporting device
09/05/2012CN102116161B Fast moving and fixing device of anchor rod machine of roadway floor of coal mine
09/04/2012CA2472313C Carrier vehicle for drilling or rockbolting machine
08/2012
08/30/2012WO2012113976A1 Rock bolt
08/30/2012US20120219365 Rock Bolt
08/29/2012CN101929340B Coal mine underground flat inclined tunnel pipe shed pre-grouting advance support construction process
08/29/2012CN101892851B Metal mine anchor rod support method
08/23/2012WO2012109700A1 A mine bolter
08/22/2012CN202391424U Supporting type comprehensive bolter miner
08/22/2012CN102644471A Hole sealing machine and hole sealing method using hole sealing machine to perform small aperture grouting for anchoring anchor rope
08/22/2012CN102644470A General energy-saving quick anchoring method and general energy-saving quick anchor rod
08/15/2012EP2487328A2 Rock bolt
08/15/2012CN202381108U Double Z-shaped steel belt used in anchoring
08/15/2012CN102635376A Method for repairing collapsed hole of drilled hole of rock anchor rod
08/15/2012CN102635353A Double-cantilever hard rock coal roadway heading and anchoring device
08/15/2012CN101994516B Control system for anchor rod machine and anchor rod machine with same
08/14/2012US8240958 Injection bolt with a fixed static mixer
08/08/2012CN202371091U Torque amplifier for anchor rod drilling machine
08/08/2012CN202370573U Chain starting circuit structure for dust removal fan and pulp shooting machine
08/08/2012CN202370554U X-shaped steel belt for anchoring
08/08/2012CN101858219B Method for determining reasonable empty-support distance of tunneling head
08/07/2012CA2579385C Apparatus for positioning anchor bolts and method of using same
08/02/2012WO2012061842A3 Anchoring systems for mines
08/02/2012DE102011120572A1 Bohrvorrichtung zum Schlag- oder Drehschlagbohren mit Verbindungsmuffe Drilling device for percussion or rotary percussion drilling with connection socket
08/01/2012CN202360119U Soft rock roadway supporting structure with multiple spray layers of seal coats
08/01/2012CN202360118U Pressurizing type emulsion anchor cable anchor unlocking machine
08/01/2012CN202360105U Gap-exciting pressure-relief soft rock roadway supporting structure
08/01/2012CN102619474A Universal adjustable anchor bolt and rope drilling machine
07/2012
07/26/2012US20120189391 Method for Anchoring Pin Insertion
07/25/2012CN202348299U Pneumatic handheld coal sidewall roof bolt driller
07/25/2012CN202348298U Tunneling and anchoring machine
07/25/2012CN102606180A Method for supporting lamellar soft rock laneway by wire rope anchors
07/25/2012CN102606179A Grouted slurry separation machine
07/25/2012CN102606178A Special sprayer for long anchor cable support in underground mine and rapid support method
07/25/2012CN102606157A Crossbeam device for anchor driving and supporting integrated machine and anchor driving and supporting integrated machine
07/25/2012CN102606154A Coal roadway tunneling machine with double round cutter heads
07/25/2012CN102606153A Fully sealed coal roadway tunneling and anchoring synchronous machine
07/25/2012CN102606152A Novel quick digging and anchoring integrated machine for rectangular coal roadway
07/25/2012CN102135005B Method for supporting roof of roadway under coal pillar and gob transition section
07/25/2012CN102116162B Tension dispersed anchor cable for coal mine and anchoring method thereof
07/19/2012US20120183360 MSE Anchor System
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