| Patents for E21C 41 - Methods of underground or surface mining; Layouts therefor (2,789) |
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| 03/05/2015 | US20150061351 Detecting sump depth of a miner |
| 02/28/2015 | CA2849469A1 Mining machine management system and mining machine management method |
| 02/19/2015 | WO2015021529A1 Apparatus, system and method for material extraction in underground hard rock mining |
| 02/19/2015 | US20150048668 Method Of Mining Ore |
| 02/11/2015 | CN204152513U 能防止矿山充填采矿立式砂仓内积料的喷嘴 Can prevent vertical sand mining mine filling nozzle plot material warehouse |
| 02/11/2015 | CN104343454A 一种机械化点柱式房柱采矿方法 One kind of mechanized room and pillar mining method PILLAR |
| 02/11/2015 | CN104343453A 一种缓倾斜中厚矿床充填采矿方法 Tilt in one slow-fill mining method thick Deposits |
| 02/11/2015 | CN104343452A 一种非正常布置进路的采矿方法及其应用 An abnormal arrangement mining method approach and its application |
| 02/11/2015 | CN103321641B 一种可燃冰固态开采方法 A flammable solid ice mining methods |
| 02/11/2015 | CN102748026B 一种短壁箱式采煤法 A short-wall mining method Box |
| 02/04/2015 | CN204140076U 一种保护溜井的接井装置 An access device chute well protected |
| 02/04/2015 | CN104329092A 老空水防水煤柱留设方法 Old empty water waterproof coal pillar design methods |
| 02/03/2015 | US8947026 Self-propelled working machine with electrical drive system and processes for operating the same |
| 01/28/2015 | CN104314570A 长厚矿体帮矿回收及露天矿转地下的开采方法 Long thick ore recovery and open pit mine to help turn the underground mining method |
| 01/28/2015 | CN104314569A 一种深部孔隙卤水及低品位固体钾矿的开采方法 Mining method for deep pore potassium brine and low-grade ore solid |
| 01/28/2015 | CN104314568A 煤层上方岩层的加固方法 Seam top rock reinforcement methods |
| 01/28/2015 | CN104314567A 一种中厚矿体的采矿方法 Mining method in the thick orebody |
| 01/28/2015 | CN104314566A 急倾斜煤层斜切分段放顶煤采煤方法 Steep Seam miter sublevel caving mining method |
| 01/28/2015 | CN103206216B 一种延长地表土地使用时间的地下工作面采序优化方法 A surface land use time underground mining face in order to extend the optimization method |
| 01/22/2015 | WO2015008274A1 Underwater gas liquefaction, gas field development and processing combustible materials |
| 01/21/2015 | CN204113289U 矿石溜井高效放矿工艺系统 Ore chute efficient ore processing system |
| 01/21/2015 | CN103244122B 沿空掘巷煤柱稳定性三位一体耦合支护控制方法 Along goaf coal pillar stability control method Trinity coupling support |
| 01/20/2015 | US8936320 Method and system for solution mining |
| 01/14/2015 | CN204098909U 走向短壁刨煤式液压支架 Short wall to plow hydraulic support |
| 01/14/2015 | CN104278992A 用于在露天矿中分层地开采材料的连接带设备和使连接带设备匹配于开采进度的方法 Methods mined material in connection with the device open pit hierarchically and the connection with the device used to match the mining schedule |
| 01/14/2015 | CN103114854B 一种再造人工间柱回采矿柱的方法 An artificial column between columns back to the mining method and recycling |
| 01/13/2015 | US8931852 Method of mineral fuel beneficiation with subsequent delivery to the consumer by pipeline transportation |
| 01/13/2015 | US8931720 Method of sorting mined, to be mined or stockpiled material to achieve an upgraded material with improved economic value |
| 01/13/2015 | CA2610124C Mobile oil sands mining system |
| 01/07/2015 | CN104265298A 下向进路充填采矿方法 Under the approach fill mining method |
| 01/07/2015 | CN104265297A 一种多层易碎缓倾斜极薄矿脉的开采方法 A multilayer thin fragile gently inclined vein mining methods |
| 01/07/2015 | CN104265296A 一种利用脉外溜井出矿系统作斜坡道的缓倾斜矿脉无轨开采方法 An advantage of the external pulse ore chute system for a gently inclined ramp veins trackless mining methods |
| 01/07/2015 | CN104265295A 倾斜中厚煤层无人工巷旁充填及无煤柱沿空留巷方法 No artificial tilt in thick seam roadway next column for Gob filling method and no coal |
| 01/07/2015 | CN104265294A 大倾角煤层炮采面无煤柱开采技术 Steep seams surface without mining technology |
| 01/07/2015 | CN104265293A 矿石溜井高效放矿工艺系统 Ore chute efficient ore processing system |
| 01/07/2015 | CN104265292A 一种固体充填采煤工作面分层保留伪顶方法 A solid fill coalface stratification method retains false roof |
| 01/07/2015 | CN104265291A 急倾斜特厚煤层刨运机综合机械化采煤方法 Inclined thick coal seam transportation planing machine mechanized mining methods |
| 01/07/2015 | CN103277102B 露天转地采人工境界矿柱坡跟加固方法 Open turn to mining slope with artificial boundary pillar reinforcement method |
| 01/07/2015 | CN102979526B 中深孔分段采矿出矿堑沟充填法构筑工艺 In deep sub-ore mining method to build a trench filling process |
| 12/31/2014 | CN104251139A 采煤工作面冒落区充填开采方法 Coalface caving zone backfill mining method |
| 12/31/2014 | CN103089265B 一种地下矿山开采中深孔爆破落矿方法 An underground mining method in deep ore blast |
| 12/31/2014 | CN101876248B 用于保持长壁开采工作面对准的方法及设备 Registration method for face and longwall mining equipment to keep working |
| 12/30/2014 | US8920074 Underground mining apparatus |
| 12/24/2014 | CN104239679A 一种煤层群上行安全开采的评价方法 An up-seam group mining safety evaluation method |
| 12/24/2014 | CN104234717A 一种倾斜对角分段空场采矿方法 One kind of slant diagonally sublevel open stope mining method |
| 12/24/2014 | CN104234716A 袋装围堰充填采矿法 Bagged cofferdam filling mining method |
| 12/24/2014 | CN104234715A 大采高双综采工作面回采工艺 Large double mechanized mining height Mining Face |
| 12/24/2014 | CN104234711A 适用于7～10m厚煤层的三滚筒采煤机以及开采方法 Suitable for 7 ~ 10m thick seam mining methods and three Shearer |
| 12/24/2014 | CN102889083B 基于gis栅格单元的采煤沉陷地表土剥离时空确定方法 Topsoil stripping method for determining temporal-based coal mining subsidence gis grid cell |
| 12/24/2014 | CN102493805B 高瓦斯矿井高效井筒揭煤方法 High Gas Mine Shaft efficient method to expose coal |
| 12/17/2014 | CN204024703U 缓倾斜角度采矿结构 Gently inclined angle mining structure |
| 12/17/2014 | CN104213932A 一种突出煤层水力相变致裂石门揭煤方法 One kind of phase transition prominent seam hydraulic fracturing method Cross Cut |
| 12/17/2014 | CN104213921A 基于水力割缝的冻结式石门揭煤方法 Based slotting freeze formula method Cross Cut |
| 12/17/2014 | CN104213920A 一种悬移支架袋式充填方法 A suspended scaffold shift bag filling method |
| 12/17/2014 | CN104213919A 一种浅埋急倾斜煤层冲击地压的防治方法 An emergency control methods Shallow inclined seam rockburst |
| 12/17/2014 | CN104213918A 一种多层缓倾斜极薄矿脉回采爆破技术 A multilayer thin veins gently inclined mining blasting technology |
| 12/17/2014 | CN102966354B 一种厚煤层坚硬顶板长壁工作面无煤柱开采方法 Hard roof of thick coal seam longwall mining method without Pillar |
| 12/17/2014 | CN102817614B 一种适于地下矿山嗣后充填的采场结构布置方式 Subsequent filling of an underground mine stope structural arrangement suitable for |
| 12/17/2014 | CN102758630B 回采部分断层保护煤柱的方法 Part fault protective pillar recovery methods |
| 12/10/2014 | CN104196561A 缓倾斜角度采矿结构 Gently inclined angle mining structure |
| 12/10/2014 | CN104196536A 倾斜矿体留矿法开采的集中出矿方法 Shrinkage Method inclined ore concentrate ore mining method |
| 12/10/2014 | CN103184871B 一种保护重要水体的煤柱留设开采方法 A method of protecting important water body pillar for mining methods |
| 12/10/2014 | CN103147758B 与采动覆岩分区隔离注浆充填相匹配的采煤速度控制方法 And mining overburden grouting isolated section matches the speed control method of coal mining |
| 12/10/2014 | CN103089266B 露天转地下过渡期无底柱分段空场崩落采矿方法 Transition from open pit to underground stope Sublevel caving mining method |
| 12/10/2014 | CN102996130B 适用于模型试验的自动化微型采煤系统 Automated mining system is suitable for miniature model test |
| 12/10/2014 | CN102635392B 超前留巷施工抽采工程的无煤柱煤与瓦斯共采方法 Without Pillar stay ahead of coal and gas extraction roadway construction project co-mining method |
| 12/09/2014 | US8905486 Underground mining |
| 12/02/2014 | US8899692 Method and apparatus for mining a material in an underground environment |
| 11/20/2014 | US20140339880 Ore removal production line, twin ramps and ground support installation method |
| 11/11/2014 | US8886382 Method and system for regulating movement of an entity between zones |
| 11/11/2014 | US8882204 Apparatus and method for mining coal |
| 10/23/2014 | US20140311952 Process for treating mined oil sands deposits |
| 10/16/2014 | US20140305640 In situ thermal processing of an oil shale formation using conductive heating |
| 10/14/2014 | US8862390 Position adjustment assistance system for transportation machine |
| 10/14/2014 | US8857915 Scanning system for 3D mineralogy modelling |
| 10/02/2014 | WO2014159925A1 Drilling rig for drilling from underground tunnels |
| 10/02/2014 | WO2014159910A1 Methods and systems for drilling from underground access tunnels to develop subterranean hydrocarbon reservoirs |
| 10/02/2014 | WO2014159902A2 Closed loop drilling fluids circulation and management system |
| 10/02/2014 | WO2014159890A1 Dual underground tunnel system for hydrocarbon exploitation |
| 09/25/2014 | WO2014149114A2 High power laser tunneling mining and construction equipment and methods of use |
| 09/23/2014 | US8840190 Method of mining ore |
| 09/03/2014 | EP2771516A1 Undercut excavation method with continuous concrete floors |
| 09/02/2014 | US8820847 Block caving method |
| 08/21/2014 | US20140232168 Device machining materials by milling or drilling, and method therefor |
| 08/21/2014 | US20140231398 High power laser tunneling mining and construction equipment and methods of use |
| 08/14/2014 | US20140225416 Sorting in a mining operation |
| 08/13/2014 | CN103982186A 无底柱后退式竖向倾斜分条分段崩落采矿法 Pillarless retreat vertical tilt slitting sublevel caving mining method |
| 08/13/2014 | CN103982185A 垂直孔与水平孔协同回采的机械化分段充填采矿法 Vertical and horizontal bore hole stoping mechanized collaborative staging fill mining method |
| 08/13/2014 | CN103982184A 地下矿山无底柱崩落采矿法落下矿石定向滑落控制方法 Underground mine caving mining method without sill falling ore directional slide control method |
| 08/13/2014 | CN103982183A 一种进路分步护顶回采破碎矿体方法 A New Approach retaining the top step crushing ore mining method |
| 08/13/2014 | CN102418527B 一种缓倾斜极薄沉积型地下铁矿床开采方法 One slow-tilt thin sedimentary iron deposit underground mining methods |
| 08/06/2014 | CN203756173U 一种采后充填原巷道无煤柱沿空掘巷系统 After filling the original one kind of mining without coal pillar roadway along goaf system |
| 08/06/2014 | CN103967496A 一种适于对山谷型尾矿堆积坝坝坡尾矿进行回采的新方法 A suitable type of Tailing Dam valley slope mining tailings were new method |
| 08/06/2014 | CN103967495A 一种尾矿坝坝坡尾矿回采技术 One kind of tailings tailings dam slope Mining Technology |
| 08/06/2014 | CN103967494A 一种浅孔留矿嗣后充填采矿方法 A light hole Shrinkage subsequent filling mining method |
| 08/06/2014 | CN103967493A 一种缓倾斜薄矿体矿柱采矿法 One kind of gently inclined thin ore pillar mining method |
| 08/06/2014 | CN103967492A 一种直角三角形边角煤柱回收方法 One kind of triangle corner pillar recovery methods |
| 08/06/2014 | CN102926753B 一种人工冻结采场顶板深孔崩矿嗣后充填采矿法 An artificial freeze hole stope roof caving mining method subsequent filling |
| 07/30/2014 | CN103953348A 一种大倾角/急倾斜煤层采空区矸石协同利用控制顶板方法 One kind of big dip / Steep Seam goaf roof control method utilizing synergy Waste |
| 07/30/2014 | CN103953347A 一种急倾斜中厚煤层采煤装置及机械化方法 One kind of steeply inclined thick seam mining equipment and mechanized methods |