| Patents for E21D 21 - Anchoring-bolts for roof, floor, or shaft-lining protection (4,377) |
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| 03/28/2012 | CN102392444A Easily-recycled anchor rod device and recycling method |
| 03/27/2012 | CA2651242C Ground anchor or rock anchor with an anchor tension member comprised of one or more individual elements with corrosion-protected anchor head design |
| 03/21/2012 | CN202170802U 一种注浆锚索 One kind of grouting anchor |
| 03/21/2012 | CN102383857A Gob-side entry retaining process for solid-filling, coal-mining and laying gangue wall |
| 03/21/2012 | CN102383813A Construction method for ultralong loess accumulative roc tunnel |
| 03/21/2012 | CN102383806A Construction technology for allowing tunnel to pass through ultra-large karst cave |
| 03/21/2012 | CN102011602B Disc anchor rod reinforcement technology computing method |
| 03/14/2012 | CN202165101U 一种水胀式锚杆 A water-expandable anchor |
| 03/14/2012 | CN202164601U 一种设有壁孔的外螺纹式复合材料中空注浆锚杆 One kind of wall hole provided externally threaded hollow grouting anchor composite materials |
| 03/14/2012 | CN102373935A Anchor rod tray and anchor rod assembly |
| 03/14/2012 | CN102373934A Glass steel anchor rod, production method thereof and anchor rod component |
| 03/14/2012 | CN102371218A Equipment and method for spraying anti static liquid on surface of glass reinforced plastic anchor rod |
| 03/13/2012 | CA2490111C Rock bolting system |
| 03/08/2012 | WO2012029012A2 A bearing plate assembly for a rock anchor |
| 03/08/2012 | WO2012027802A1 Mechanical anchor for bolt |
| 03/08/2012 | WO2011156450A3 Resin-anchored bolt with indentations |
| 03/01/2012 | US20120048009 Method, system, use of the system and reinforcement member for rock reinforcement |
| 02/29/2012 | EP2423432A2 Anchoring apparatus and method of use |
| 02/29/2012 | CN101737069B Reinforcing rock mass structure |
| 02/25/2012 | CA2740943A1 Anchoring apparatus and method of use |
| 02/23/2012 | WO2012023101A1 Anchoring device |
| 02/22/2012 | EP1888878B8 Method and device for drilling, particularly percussion drilling or rotary percussion drilling a hole in soil or rock material |
| 02/22/2012 | CN202148914U 一种用于地下矿山开采、巷道掘进的锚竹联合支护体 Bamboo anchor combined support body for underground mining, Tunneling |
| 02/22/2012 | CN202148907U 四线大跨隧道不等参初期支护构造 Four lines ranging from large span tunnel initial support structure parameters |
| 02/22/2012 | CN202148866U 一种底锚钻机 One substrate anchor rig |
| 02/22/2012 | CN202148640U 大直径钢绞线挤压套 Large diameter steel cable swaging collar |
| 02/22/2012 | CN102359386A Shearing sleeve type yielding bolt |
| 02/16/2012 | WO2012021588A2 Fully grouted cable bolt |
| 02/16/2012 | DE102010063098A1 Gesteinsanker Rock bolts |
| 02/16/2012 | CA2807061A1 Fully grouted cable bolt |
| 02/15/2012 | CN102352761A Prestressed fish-bellied steel cable combined supporting structure for coal mine laneway |
| 02/15/2012 | CN101768963B 自锁器及具有该自锁器的自锁型预应力锚索 Self-locking and self-locking prestressed anchor has the self-locking device |
| 02/09/2012 | US20120034038 Splice Tube with Wedge Retaining Caps |
| 02/09/2012 | US20120034035 Tensionable Cable Bolt with Crimped Shaft |
| 02/08/2012 | CN202140104U 等强自锁紧防松锚杆 Other strong self-locking locking bolt |
| 02/08/2012 | CN202140103U 岩爆隧道支护结构 Rock burst tunnel support structure |
| 02/08/2012 | CN202140102U 一种防腐型锚杆 One kind of anti-corrosion Bolt |
| 02/08/2012 | CN202140100U 一种地下矿山矿仓的支护结构 Supporting structure of an underground mine ore bin |
| 02/08/2012 | CN102345460A Settlement control method for shallow large-section loess tunnel |
| 02/08/2012 | CN102345447A Casting spliced diamond composite sheet anchor rod drill bit and connecting sleeve thereof |
| 02/04/2012 | CA2747895A1 Tensionable cable bolt with crimped shaft |
| 02/02/2012 | WO2012015349A1 A rock bolt and an anchoring device |
| 02/01/2012 | CN202132060U 注液防腐锚杆或锚索的锚固结构 Antiseptic liquid injection anchoring structure or anchor bolt |
| 02/01/2012 | CN1962731B 一种纤维增强树脂锚杆 A fiber-reinforced resin bolt |
| 02/01/2012 | CN1788139B 用于岩石锚杆的方法和装置 Methods and apparatus for rock bolt |
| 02/01/2012 | CN102337925A Method for enlarging, filling and supporting coal-pillar-free mining roadway for fully-mechanized top coal caving |
| 02/01/2012 | CN102337914A Welding type anchor rod with dynamic and static combination |
| 02/01/2012 | CN102337913A Novel wedge seam type anchor structure |
| 02/01/2012 | CN102337904A Method for retaining gob-side tunnel |
| 02/01/2012 | CN102337903A Method of active coupling support in time and space for control of minimum deformation of surrounding rock of deep well roadway |
| 02/01/2012 | CN101994315B 全长粘结预应力锚杆及其施工方法 Grouted prestressed anchor and construction method |
| 01/25/2012 | EP2409001A1 Friction bolt |
| 01/25/2012 | CN202125303U Box-type support beam |
| 01/25/2012 | CN202125250U Plug-in type anchor rod drill bit of diamond compact and connection sleeve of same |
| 01/24/2012 | US8100607 Rock anchor |
| 01/19/2012 | US20120014756 Yieldable cone bolt and method of manufacturing same |
| 01/18/2012 | CN202117696U Multi-corrosion-resistant shell-expansion type hollow prestressed grout injection anchor bolt |
| 01/18/2012 | CN202117695U Pressure releasing device comprising tray and assembly |
| 01/18/2012 | CN202117694U Tubular anchoring agent supporting plate |
| 01/18/2012 | CN102322281A Tunnel quick-tunneling advance support integrated device |
| 01/18/2012 | CN102322273A Anchoring-grouting integrated reinforcing method for roadway floors |
| 01/18/2012 | CN102322267A Method for preventing and controlling rock burst in soft rock of deep well |
| 01/18/2012 | CN101638989B Milling and supporting construction method of fault crushed zone of subbottom tunnel |
| 01/12/2012 | WO2011063433A3 A pressure indicating device |
| 01/11/2012 | CN202108530U Easily detachable anchor rod and anchor rope |
| 01/11/2012 | CN101694163B Determination method of deep tunnel roof support forms and support depth |
| 01/05/2012 | WO2012000016A1 An apparatus for post-grouting a cable bolt, cable bolt assembly and method of installing a cable bolt |
| 01/04/2012 | CN202100269U Crack preventing safety retainer ring for anchor rod |
| 01/04/2012 | CN202100268U Expansion anchor rod capable of being used repeatedly |
| 01/04/2012 | CN102305082A Method for relieving and cutterhead repairing of shield machine in weathering groove |
| 01/04/2012 | CN102304930A Method for detecting prestress construction quality of anchoring engineering |
| 01/04/2012 | CN102304919A Device and anchor rod capable of being arranged on anchor rod anchoring section or/ and free-section rod body |
| 01/04/2012 | CN101251021B Tensioning assembly for a cable bolt |
| 12/29/2011 | WO2011163449A1 A tensionable threaded rebar bolt |
| 12/29/2011 | CA2802913A1 A tensionable threaded rebar bolt |
| 12/28/2011 | CN202090933U 四线大跨台基复合拱形隧道衬砌构造 Four-wire Span LMH composite arched tunnel lining structure |
| 12/28/2011 | CN102296976A 大倾角煤层异形回采巷道非对称锚网索组合支护方法 Steep Coal Mining Roadway asymmetrically shaped steel mesh and anchor support method in combination |
| 12/28/2011 | CN102296975A 锚杆预紧装置 Bolt tensioners |
| 12/28/2011 | CN102296974A 采场破碎顶板快速维护方法 Fast stope broken roof maintenance methods |
| 12/28/2011 | CN101892854B 一种矿用活动吊环 One kind of mining activity rings |
| 12/28/2011 | CN101886546B 一种用于煤矿井下锚杆锚索巷道抑制顶板变形的方法 A method for inhibiting the coal mine roof bolt and cable roadway deformation |
| 12/28/2011 | CN101852083B 大变形易冒落破碎松散巷道的快速支护方法及装置 Method and apparatus for rapid support large deformation broken loose and easy to take off the roadway |
| 12/22/2011 | WO2011157850A2 Improved tension anchor made of fiber-reinforced plastic material |
| 12/22/2011 | US20110311315 Friction Bolt Assembly |
| 12/22/2011 | DE102010024352A1 Verbesserter Zuganker aus faserverstärktem Kunststoff Improved tie rod of fiber reinforced plastic |
| 12/21/2011 | EP2396512A2 Securing method for horizontal and inclined workings |
| 12/21/2011 | CN202081900U 一种锚索的安全保护装置 An anchor of safety devices |
| 12/21/2011 | CN102292520A 锚固体系及其使用方法 Anchoring system and method of use |
| 12/21/2011 | CN102287210A 一种巷道支护用让压钢绞线 One kind of roadway with the presser Strand |
| 12/15/2011 | WO2011156450A2 Resin-anchored bolt with indentations |
| 12/15/2011 | WO2011153810A1 Constant resistance and large deformation anchor rod |
| 12/14/2011 | EP2395198A1 Cable bolt |
| 12/14/2011 | CN202073583U 前后门型架迈步式锚护一体机 Moving around the gantry anchor retaining one machine |
| 12/14/2011 | CN202073581U 四线大跨隧道索拱联合初期支护构造 Four-lane cable-arch tunnel across the combined initial support structure |
| 12/14/2011 | CN202073568U Vertical shaft pipeline fixing device |
| 12/14/2011 | CN202073096U 挤密自锁快速安装锚杆 Compaction self-locking bolt quick installation |
| 12/08/2011 | US20110299940 Resin-anchored bolt with indentations |
| 12/08/2011 | US20110299939 Expandable Bolt With Shielded Tip |
| 12/08/2011 | CA2741272A1 High-strength anchor system, safe room bulkhead, and method of anchoring a support to mine strata |
| 12/07/2011 | CN202065003U 矿井巷道椭圆形双开式全自动灾害堵防装置 Mine tunnel open oval twin disasters automatic anti-blocking device |