| Patents for E21D 9 - Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries (7,097) |
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| 06/13/2012 | CN202273925U 掘进机多油箱液压系统 Boring machine tank hydraulic system |
| 06/13/2012 | CN202273687U 焊接式半外置预埋槽盾构壳体 Semi-embedded external tank welding shield case |
| 06/13/2012 | CN202273686U 多油箱掘进机 Multi-tank boring machine |
| 06/13/2012 | CN202273685U 带油箱的行走机构 With a tank of travel agencies |
| 06/13/2012 | CN202273683U 一种带控除尘功能的扒渣机 A tape control functions slag removal machine |
| 06/13/2012 | CN202273681U 矿用挖掘装岩机柴电两用液压驱动系统 Mine mining rock loader hydraulic dual diesel-electric drive system |
| 06/13/2012 | CN202273679U 滚耙料装置 Roller harrow feeding device |
| 06/13/2012 | CN102493822A Method for performing curtain grouting construction on tunnel by water rich fault influence zone |
| 06/13/2012 | CN102493817A Tunnel with opening and open cut channel structure |
| 06/13/2012 | CN102493816A Theftproof method for cable tunnel |
| 06/13/2012 | CN102493815A Drill loader working device |
| 06/13/2012 | CN102493814A Shield centre revolving joint |
| 06/13/2012 | CN102493813A Shield tunneling machine for underground pipeline |
| 06/13/2012 | CN102493812A Method for transporting through double crossovers in narrow construction space |
| 06/13/2012 | CN102493424A Prediction method for urban rail transit shield project |
| 06/13/2012 | CN101995861B Remote monitoring method and system for development machine |
| 06/12/2012 | CA2556370C Advance of pipe elements in the ground |
| 06/06/2012 | EP2122069B1 Ground-working machine |
| 06/06/2012 | CN202266274U 掘进机防干涉装置 TBM anti-interference device |
| 06/06/2012 | CN202266273U Installation structure of shaft-seat fixed-type double advancing cutters in four-cavity cutter holder |
| 06/06/2012 | CN202266272U Installing structure of shaft-seat-fixed type dual-pilot cutter in double-edged hob holder |
| 06/06/2012 | CN202266271U Mounting structure of pilot cutter of shield machine |
| 06/06/2012 | CN202266270U Double-edged hob device for semi-cylindrical hexagonal end cover of shield machine |
| 06/06/2012 | CN202266269U Installation structure for trebling-end-cover double-edged hob of shield machine in cylinder cutter box |
| 06/06/2012 | CN202266268U Double-edged hob arranged on cylindrical cutter box |
| 06/06/2012 | CN202266267U 一种偏心多轴掘进机 One kind of eccentric multi-axis boring machine |
| 06/06/2012 | CN202266266U Fixing structure of propelling hydraulic cylinder of double-hinge shield machine |
| 06/06/2012 | CN202265751U 左转和直行畅通的四个“卜”字形隧道的组合隧道 Combination tunnel turn left and go straight smooth four "Bu" shaped tunnel |
| 06/06/2012 | CN102486092A Pipe jacking machine holing-through construction method of rectangular channel construction in deep soil layer |
| 06/06/2012 | CN102486091A Construction method for oblique tunneling of rectangular pipe jacking machine in closed space |
| 06/06/2012 | CN101824990B Rock drivage process for four-arm hydraulic drill rig and breaking-loading-transporting-guniting integrated machine |
| 06/05/2012 | CA2663645C Full-cut heading machine |
| 06/05/2012 | CA2470913C Method and means for processing oil sands while excavating |
| 05/30/2012 | CN202252747U Anti-plugging automatic lubrication system for shield machine |
| 05/30/2012 | CN202250103U Middle prefabricated box culvert for shield tunnel |
| 05/30/2012 | CN202250100U Advanced grouting device of shield machine |
| 05/30/2012 | CN202250097U Tunnel decoration corrosion prevention system |
| 05/30/2012 | CN202250096U Bucket of tunnel excavator |
| 05/30/2012 | CN202250095U Forward movement propulsion device for shield machine |
| 05/30/2012 | CN202250094U Square-box tunnel boring machine |
| 05/30/2012 | CN202250093U Installing structure of shield machine shaft seat fixed type double-edged hob |
| 05/30/2012 | CN202250092U Mounting structure of double advance knives in cylindrical hobbing cutter box for shield machine |
| 05/30/2012 | CN202250091U Abrasion resistant shield cutter with double cutting edges |
| 05/30/2012 | CN202250090U Shield machine with function of crushing large boulder |
| 05/30/2012 | CN202250089U Pneumatic control continuous grouting pressure maintaining tank |
| 05/30/2012 | CN202250085U Fixing device of wheel shaft for locking rock loader and rock loader with the device |
| 05/30/2012 | CN202248024U Hopper extension sliding rail assembly mechanism with friction pieces |
| 05/30/2012 | CN101922300B Large supporting and protecting system of tunnel in hollow solution cavity |
| 05/30/2012 | CN101861435B Method of preparing air foam stabilizing liquid and method of air foam drilling work |
| 05/30/2012 | CN101781991B Double-well type reinforcement method of shield arrival or starting end and double-well type shield arrival method |
| 05/30/2012 | CN101709647B Minitype multifunctional heading machine |
| 05/29/2012 | CA2623698C Method and system for mining hydrocarbon-containing materials |
| 05/23/2012 | CN202228086U Air door-free roadway-type ventilation long and large double-track tunnel with transverse passages |
| 05/23/2012 | CN202228085U Highly abrasion-resistant disk cutter |
| 05/23/2012 | CN202228084U Bearing support fixed type double-edge hob cutter with wear indicating function |
| 05/23/2012 | CN202228083U An installing structure of an advancing cutter box in a cylindrical hobbing cutter box |
| 05/23/2012 | CN202228082U Structure for mounting pilot cutter box in cylindrical hobbing cutter box |
| 05/23/2012 | CN202228081U Propelling cylinder protection device for shield machine |
| 05/23/2012 | CN202228080U Stabilizing device for shield of shield machine |
| 05/23/2012 | CN202228078U Pick device, cutting mechanism and coal machinery |
| 05/23/2012 | CN102472100A 地下采矿 Underground Mining |
| 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 | CN102154985B Guide shield for pushing rectangular concrete frame bridge |
| 05/23/2012 | CN101871361B Method for designing mine tunnel |
| 05/23/2012 | CN101798930B Rapid construction method of high-pressure water-rich fault zone of tunnel |
| 05/16/2012 | EP2324158B1 Cutter to be mounted on an excavator, having cutting heads and a cutter chain. |
| 05/16/2012 | CN202220613U Operating platform for anchor rope and anchor bolt support of coal mine roadway |
| 05/16/2012 | CN202219253U Shield machine and grouting pipe cleaning device thereof |
| 05/16/2012 | CN102454235A Design scheme of tunnel and underground building combined type earthquake resistant structure |
| 05/16/2012 | CN101922294B Dynamic coordinate control method of full-face large-scale tunneling equipment |
| 05/10/2012 | WO2012059868A1 Apparatus for spraying liquid substances, such as paints or water, on the inner walls of tunnels |
| 05/10/2012 | WO2012058706A2 Full face tunneling machine |
| 05/09/2012 | EP2449213A1 Underground mining |
| 05/09/2012 | CN202216781U Soil pressure and grouting pressure sensor of shield tunneling machine |
| 05/09/2012 | CN202215254U Rotary table swing righting compensation device of second conveyor |
| 05/09/2012 | CN202215253U Double-blade rolling cutter with arc-shaped end covers for shield machine |
| 05/09/2012 | CN202215252U Mounting structure of shield machine triple-end cap double-edged hob in double-cylinder knife box |
| 05/09/2012 | CN202215251U Shield machine with central drill system |
| 05/09/2012 | CN202214744U Rubber crawler-type slagging-off machine |
| 05/09/2012 | CN102449264A Bit replacing device for excavating machine |
| 05/09/2012 | CN102444405A Anti-slide pile and frame arch combined structure and construction method |
| 05/09/2012 | CN101899981B Method for reducing abnormal damage of hob in tunnel excavating process of shield machine |
| 05/09/2012 | CN101882171B Method for fast establishing interactive tunnel and wall rock body three-dimensional models |
| 05/08/2012 | US8172334 Apparatus and method for monitoring tunnel boring efficiency |
| 05/02/2012 | CN202209177U Cutter head structure capable of on-line cutter change for tunnel heading |
| 05/02/2012 | CN202209176U Sealing structure for cutter head of shield excavator |
| 05/02/2012 | CN202209175U Adjustable irregularly-shaped stepping tunneling machine with soil-rock separating function |
| 05/02/2012 | CN202209174U Traveling part device based on tensioning limiting and excavator |
| 05/02/2012 | CN102434754A Airbag piston (for slurry shields) for blocking pipes |
| 05/02/2012 | CN102434174A Bentonite grouting method for construction of shield tunnel |
| 05/02/2012 | CN102434170A Air bag piston stretching device of pipe connecting device for slurry shield |
| 05/02/2012 | CN102434169A Fine tuning mechanism for pipe connecting device |
| 05/02/2012 | CN102434168A Pipe connecting device |
| 05/02/2012 | CN102434167A Air-cushion-type anti-sidetracking device for construction with rectangular tunnel boring machine |
| 05/02/2012 | CN102434166A Device and method for testing influence of tunnel excavation on existing close-distance parallel tunnels |
| 05/02/2012 | CN101713293B Method for constructing ecological tunnel |
| 04/26/2012 | WO2012052571A1 Support structure |
| 04/25/2012 | CN202202871U 隧道掘进用排渣装置 Tunneling device with slagging |
| 04/25/2012 | CN202202870U 用于异形断面切削的隧道掘进机 For complex cross-section of the tunnel boring machine cutting |
| 04/25/2012 | CN202202869U 隧道掘进旋转刀架 Tunneling rotating turret |