Patents for E21D 20 - Setting anchoring-bolts (3,685) |
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07/18/2012 | CN102587943A Method for quickly mounting capsule resin on separation area of top plate |
07/18/2012 | CN102587942A Preliminary supporting bag cast isolation wall and placing method thereof |
07/12/2012 | US20120177448 Grout delivery system for a rock bolt |
07/11/2012 | CN202325581U 一种适合动载的预应力锚杆支护系统 Prestressed bolting a system for dynamic load |
07/11/2012 | CN202325576U 锚固用双o型钢带 Anchor steel band with double o |
07/11/2012 | CN202325575U 隧道内长管棚 Long tube tunnels |
07/11/2012 | CN102562105A Support construction method for long anchor cable for underground mine |
07/11/2012 | CN102562089A Method for ensuring supporting pre-tightening force of anchor rod for coal laneway |
07/11/2012 | CN102561940A Mechanical single-arm type hydraulic roof-bolter |
07/10/2012 | CA2460497C Rebar insertion device |
07/07/2012 | CA2763338A1 Fully grouted mine roof bolt with expansion anchor |
07/04/2012 | CN202300890U 气动式供水增压装置 Pneumatic pressurized water supply equipment |
07/04/2012 | CN202300447U 一种注浆锚索快速安装推进器 One kind of grouting anchor Quick Install propeller |
07/04/2012 | CN202300446U 矿用分离式无尘混凝土喷浆机 Mine separate clean concrete spraying machine |
07/04/2012 | CN202300385U 综合机械化岩巷掘进机的顶帮锚杆锚索钻机 Top mechanized rock roadheader help anchor bolt rig |
07/04/2012 | CN202300205U 加强型金刚石复合全片锚杆钻头 Reinforced composite whole sheet anchor diamond drill |
07/04/2012 | CN202300199U 一种履带式全液压锚杆钻机 One kind of crawler hydraulic bolt rig |
07/04/2012 | CN102536278A Progressive yielding combined-type extensible anchor rod and construction method thereof |
07/04/2012 | CN102536277A Follower assorted supporting and anchoring system of cantilever type development machine |
07/04/2012 | CN102536229A Tunneling, protecting and anchoring parallel work system and construction technology |
07/04/2012 | CN102536117A Machine-mounted type multipurpose anchor rod drilling machine |
07/04/2012 | CN102535458A Reinforced cement-soil anchor bolt and construction method thereof |
07/04/2012 | CN102003193B Hydraulic airborne water and wind-driven drilling and anchoring device |
07/04/2012 | CN101737005B Drilling tool for sleeving anchor cable and construction method for sleeving anchor cable with simultaneous casing |
06/28/2012 | WO2012083342A1 Rock bolt |
06/28/2012 | WO2012034181A8 Drill hole plugs |
06/28/2012 | US20120163924 Friction bolt |
06/28/2012 | US20120163923 Structure supporting system |
06/28/2012 | CA2822653A1 Rock bolt |
06/27/2012 | CN102518452A Rapid and safe arch supporting method in process of passing through top-coal caving region |
06/27/2012 | CN102518451A Construction method of shotcrete support for water contained loess geological tunnel |
06/27/2012 | CN102518436A Method for controlling tectonic rock burst in coal mine tunneling |
06/27/2012 | CN102518394A Hydraulic driving two-stage feeding dovetail groove guiding asymmetrically-arranged anchor drilling machine |
06/27/2012 | CN101737006B Dry wet-type drill box of anchor rod drill carriage |
06/26/2012 | CA2523296C Method and device for rock bolting |
06/21/2012 | US20120155971 Rock Bolt |
06/21/2012 | US20120155970 Mine Roof Bolt With End Fitting |
06/21/2012 | DE102010063107A1 Chemical sliding anchor, particularly for application in mining industry, for fixing to rock in bore having fixing substance , has anchor tube and anchor nut is fixed on armature tube directly or indirectly |
06/20/2012 | EP2466066A2 Rock bolt |
06/20/2012 | CN202280465U 侧锚杆机及掘锚机 Side bolting machine and dig windlass |
06/20/2012 | CN102505950A Construction method for recycling self-feeding anchor rods and anchor rod structural components thereof |
06/20/2012 | CN102002947B Explosion expanded internal anchor head prestressed anchor cable for strengthening weak rock and anchoring method thereof |
06/19/2012 | US8202024 Partitioned film package |
06/15/2012 | CA2760164A1 Rock bolt |
06/13/2012 | CN102494082A Torque amplifier for jumbolter |
06/13/2012 | CN102493821A Support method for high stress roadway coal-rock mass |
06/13/2012 | CN102493819A Method for controlling stability of surrounding rocks of laneway in coal seam |
06/10/2012 | CA2756899A1 Seismic tool assembly for use in anchor insertion |
06/07/2012 | WO2011029111A3 Tunneling machine or extraction machine |
06/06/2012 | DE102010061006A1 Kupplung, insbesondere für das Verbinden von Ankerstangen Coupling, in particular for the connection of the anchor rods |
06/06/2012 | CN202266283U 一种锚杆支护装药器 One kind of charge is bolting |
06/06/2012 | CN202266259U 两臂顶帮锚杆锚索施工钻车升降平台上的脚踏翻板装置 Top arms flap means to help foot drill bolt and cable car construction lifting platform |
06/06/2012 | CN202266258U 一种两臂顶帮锚杆锚索施工钻车的液压锚杆钻机 One kind of arms anchor bolt in the top of the car's hydraulic bolt construction drilling rig |
05/30/2012 | CN202250134U Tunnel excavating, anchoring and supporting all-in-one machine |
05/30/2012 | CN202250124U Resin anchoring cartridge mounter |
05/30/2012 | CN202250123U Auxiliary frame for hitting anchor rod |
05/30/2012 | CN202250122U I-shaped profile steel belt for anchoring |
05/30/2012 | CN202250121U Hydraulic front clamping type anchor cable tension machine tool |
05/30/2012 | CN202250120U Rotary type cage handle anchor rod |
05/30/2012 | CN102482942A 具有分离式混合和排出头的锚杆 Bolt has a separate mixing and discharge head |
05/30/2012 | CN101824986B Coal mining process of drilling, loading, conveying and anchoring integral machine |
05/30/2012 | CN101403302B Pedrail type liftable anchor bar anchor cable construction drill rig and double-lane fast digging technique |
05/24/2012 | WO2012065878A1 Two-component mortar composition and its use |
05/24/2012 | WO2011038436A3 Advancing machine |
05/24/2012 | CA2817997A1 Two-component mortar composition and its use |
05/23/2012 | CN202228095U Hydraulic bolting machine for coal mine |
05/23/2012 | CN202228094U Anchor mesh support used for underground roadway |
05/23/2012 | CN202228093U Portable anchor wire withdrawing device |
05/23/2012 | CN202227339U Grout-stopping plug and grout-stopping system for anchor rod rope |
05/23/2012 | CN1837503B Shell-reclaimable rock-reinforcing construction method and shelling type reinforcement body and reclaiming apparatus used thereby |
05/23/2012 | CN102472103A Tensionable tubular resin anchored tubular bolt and method |
05/23/2012 | CN102465706A 倾斜层状岩体的沿脉采准巷道的开凿方法 Tilt layered rock along veins of Mining Roadway excavation methods |
05/23/2012 | CN101915112B Strong-side and strong-corner coal entry anchor rod support method |
05/23/2012 | CN101906977B Method for preventing and treating large deformation and collapse of softrock tunnel |
05/23/2012 | CN101798930B Rapid construction method of high-pressure water-rich fault zone of tunnel |
05/15/2012 | US8177458 Mechanically stabilized earth connection apparatus and method |
05/15/2012 | CA2564941C Rockbolt made of steel pipe |
05/15/2012 | CA2481311C Drilling and bolting head for bolting machine |
05/10/2012 | WO2012061842A2 Anchoring systems for mines |
05/10/2012 | CA2822568A1 Anchoring systems for mines |
05/09/2012 | CN102031873B Hydraulic tensioner of fixed-torque locking prestressed anchor |
05/08/2012 | US8172005 Cement silo structure for mining machine |
05/03/2012 | WO2012058341A1 Filling of partitioned film packages for anchoring systems for mines |
05/02/2012 | CN102434111A Hydraulically-driven two-stage-feed dovetail-groove-guide symmetrically-arranged anchor rod drilling machine |
05/02/2012 | CN102433879A Assembling unit for exerting prestress on glass fiber reinforced plastic anchor bolt and using method thereof |
05/02/2012 | CN101725362B Composite support device of dynamic pressure softrock tunnel based on steel pipe concrete bracket |
05/01/2012 | CA2653307C Improved rock bolt with ploughing anchors |
04/25/2012 | CN202202814U 金刚石复合片锚杆钻头 PDC anchor drill |
04/25/2012 | CN102425439A 预置钢绞线双向分阶段张拉的锚索加固方法 Two-way pre-staged tensioning strand anchor reinforcement method |
04/25/2012 | CN102425438A 极近距离煤层群多采空区下巷道的支护方法 More mining group Seams empty area under the roadway support method |
04/25/2012 | CN102425437A 石炭系煤层开采顺槽巷道支护方法 Carboniferous coal roadway method Crossheading |
04/25/2012 | CN102425428A 巷道迎头极破碎顶板控制方法 Roadway head pole broken roof control method |
04/25/2012 | CN101818648B 矸石充填巷旁挤压成型模板 Lane beside waste filling extruded template |
04/25/2012 | CN101694148B 锚杆钻机的马达传动部件 Roofbolter motor drive components |
04/19/2012 | WO2011116918A3 Method for the retroactive strengthening of a fastening means, and injection washer suitable for this purpose |
04/18/2012 | CN202194560U 锚杆钻机给进梁的摆动机构 Roofbolter feed beam oscillating mechanism |
04/18/2012 | CN202194135U 锚索预应力荷载补偿或卸荷装置 Prestressed anchor load compensation or unloading equipment |
04/18/2012 | CN102418540A 煤矿用液压八臂锚杆钻车 Mine eight-arm bolt hydraulic drill rig |
04/18/2012 | CN102418535A 一种地下工程揭露冻结管的封堵及注浆方法 An underground pipe works to expose freeze plugging and grouting methods |
04/18/2012 | CN101769158B 掘护锚一体化成套设备 Driving anchor integrated care equipment |