| 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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| 12/30/2009 | EP2137376A1 Method of modifying drilling pattern, rock drilling rig, and software product |
| 12/30/2009 | CN201372799Y Hydraulic device for shield cutterhead |
| 12/30/2009 | CN101614127A Method for surveying river-crossing leveling during shield breakthrough construction |
| 12/30/2009 | CN101614126A Construction method for directly cutting guard post for tunnel end well by shield machine |
| 12/30/2009 | CN101614125A Construction method of V-level surrounding rock tunnel |
| 12/30/2009 | CN101614124A Method for synchronic construction of tunnelling of open-type hard rock tunnel boring machine and secondary lining |
| 12/30/2009 | CN100575717C Energy-saving type shield hydraulic pressure control system using hydraulic pressure transformer |
| 12/23/2009 | WO2009155110A2 Apparatus and method for monitoring tunnel boring efficiency |
| 12/23/2009 | CN201368314Y Shield tail grease pump |
| 12/23/2009 | CN201367906Y Screw conveyor |
| 12/23/2009 | CN101608550A Observation window device applied on shield machine |
| 12/23/2009 | CN101608549A Full-automatic multistage planet primary-secondary drill tunnel shield machine system |
| 12/23/2009 | CN101608548A Method for protecting underground structure of single round shield side face construction in close distance |
| 12/23/2009 | CN101608547A Method and device for digging tunnel and preventing overbreak |
| 12/23/2009 | CN100572752C Method and device for providing continuous information of soil quality to the driver of a tunnelling machine regarding cutting face |
| 12/23/2009 | CN100572751C Method for using shield tail sealing device of shield machine |
| 12/23/2009 | CN100572750C Shield launching construction method |
| 12/23/2009 | CA2723432A1 Apparatus and method for monitoring tunnel boring efficiency |
| 12/17/2009 | WO2009150294A1 Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock |
| 12/17/2009 | US20090309409 Full-cut heading machine |
| 12/17/2009 | CA2726930A1 Method and equipment for displaying drill holes and method for directing drill rod when holes are drilled into rock |
| 12/16/2009 | CN201363153Y Rock level mobile working platform vehicle |
| 12/16/2009 | CN201363152Y Cutter ring of disc cutter |
| 12/16/2009 | CN201363151Y Slurry leakproof elbow used for tunnel segment construction |
| 12/16/2009 | CN201363150Y Double-partition double-arch tunnel |
| 12/16/2009 | CN101603425A Variable-frequency control device used for shield construction cuttingwheel drive and control method thereof |
| 12/16/2009 | CN100570125C Horizontal rotary spray composite pipe pressure-reducing mud discharging device |
| 12/15/2009 | CA2619880C Method and apparatus for feeding a tunnel roof support system from the roof shield of a tbm |
| 12/09/2009 | CN201358793Y Mini-size push bench for underground pipe laying |
| 12/09/2009 | CN201358792Y Shaft seal cooling and improving device for shield boring machine |
| 12/09/2009 | CN101600850A Designing drilling pattern for excavating rock cavern |
| 12/09/2009 | CN101598025A Multifunctional fabricated hydraulic drive moveable trestle |
| 12/09/2009 | CN101598024A Shield cutter-head mechanism of shield tunnel boring machine |
| 12/09/2009 | CN101598023A Control method for shield tunnel axis having underground structure on adjacent side |
| 12/03/2009 | US20090297273 Apparatus and method for monitoring tunnel boring efficiency |
| 12/03/2009 | DE102007005560B4 Verfahren zum Betrieb einer Tunnelbohrmaschine, Verfahren zum Erkennen von geologischen Strukturen sowie Tunnelbohrmaschine A method of operating a tunnel boring machine, method of detecting geological structures and tunnel boring machine |
| 12/02/2009 | CN201354640Y Automatic control system for balancing shield machine excavation chamber pressure |
| 12/02/2009 | CN100564806C Method and device for extracting extraction products in underground mining |
| 12/02/2009 | CN100564803C Rock lane digging method |
| 11/25/2009 | EP2122069A1 Ground-working machine |
| 11/25/2009 | CN201351497Y Multi-cutter rectangle push bench |
| 11/25/2009 | CN201351496Y Dual-cutter large soil pressure balance shield machine |
| 11/25/2009 | CN201351495Y Slurry pipe joint device for slurry shield |
| 11/25/2009 | CN101586346A Method for constructing multi-functional metro interchange station complex |
| 11/22/2009 | CA2666039A1 A tube of fabric reinforced pvc |
| 11/18/2009 | EP2119868A1 Shield machine |
| 11/18/2009 | CN100560938C Method and composition for injection at a tunnel boring machine |
| 11/12/2009 | US20090279955 Mine Seal With Electrically Non-Conductive Ties |
| 11/11/2009 | CN201344035Y Transitional disk cutter ring with asymmetrical inner side and outer side cutting edge angles |
| 11/11/2009 | CN101578426A Full-cut heading machine |
| 11/11/2009 | CN101575978A Pressure-speed mixed control shield propulsion hydraulic system |
| 11/11/2009 | CN101575977A Hydraulic direct-regulating quick response mechanism of snap load in shield propulsion system |
| 11/11/2009 | CN101575976A Space enclosing structure convenient for opening door opening, construction method and use method thereof |
| 11/11/2009 | CN101575972A Crossed chain-cutting narrow crawler double-push liquid wedge and support type stone head development machine |
| 10/29/2009 | DE102008020691A1 Bearing producing method for pipe drive, involves using influenced press forces by pipe drive to generate sufficient bearing force, in which lateral pressure is included by lateral pressure plates and carried off into lower ground by anchor |
| 10/28/2009 | CN201333601Y Wheel bracket device used for shield machine |
| 10/28/2009 | CN101568697A Designing drilling pattern for excavating rock cavern |
| 10/28/2009 | CN101566065A Method for plane alignment arrangement of highway or city tunnel |
| 10/28/2009 | CN101566064A Large-section tunnel construction method |
| 10/28/2009 | CN101566063A Method of reinforcing soil body for inlet and outlet cave mouths of tunnel shield |
| 10/28/2009 | CN100554645C Composite balancing earth-pressure shielding machine |
| 10/28/2009 | CN100554644C Method of boring hard rock by means of tunnel boring machine containing hardened steel disc protruding from cutting head |
| 10/28/2009 | CN100554643C Construction process of pushing in long and large box culvert under taxiway in airport |
| 10/21/2009 | CN201330606Y Base for tunnel shield to enter hole |
| 10/21/2009 | CN101560882A Digging method for preventing strong or strong rock burst on active face |
| 10/21/2009 | CN101560881A Double-layer shield tunnel |
| 10/21/2009 | CN100552377C Method for monitoring laser collimation TBM tunnel clearance displacement |
| 10/20/2009 | CA2583523C Method and system for mining hydrocarbon-containing materials |
| 10/15/2009 | US20090255783 Arrangement for extracting extraction products in Underground extraction operations in caving |
| 10/14/2009 | CN201325047Y Adjustable shield machine assembly supporting body |
| 10/14/2009 | CN101555798A Reverse puncher and method for using the puncher for implementing PBA side pile construction |
| 10/14/2009 | CN100549363C Method for forming foam in foam shield driving method and foamed material for use in foam shield driving method |
| 10/07/2009 | CN101550830A Energy-efficient shield cutterhead closed loop hydraulic control system adopting ganged accumulators |
| 10/07/2009 | CN101550829A Shield whole self-propelled station-crossing construction method |
| 09/30/2009 | CN201318179Y Disk cutter capable of being mounted in forward inclining manner in full face tunnel boring machine |
| 09/30/2009 | CN201318178Y Disk cutter capable of being mounted in inward inclining manner in full face tunnel boring machine |
| 09/30/2009 | CN101545376A Execution method for feeding tiny tunnel into ultra heavy section tunnel transversally |
| 09/30/2009 | CN100545419C Pneumatic development machine for replacement of existing concrete conduit and replacing method therefor |
| 09/23/2009 | CN101539024A Integral type shield cutterhead driving device |
| 09/23/2009 | CN101539023A Shield machine belt pressure chamber opening operation construction method |
| 09/23/2009 | CN101539022A Earth pressure balance shield machine cutterhead |
| 09/23/2009 | CN101539021A Road tunnel excavation method |
| 09/23/2009 | CN100543271C Magnetic suspension tunnel internal zone dividing method |
| 09/23/2009 | CN100543270C Construction method for traversing shallow water-enriched sand layer by composite soil pressure balanced shield tunneling machine |
| 09/23/2009 | CN100543269C Method of digging for tunnel construction |
| 09/23/2009 | CN100543268C Tunneling machine |
| 09/16/2009 | EP2099390A2 Devices for forming curved or closed-loop structures |
| 09/16/2009 | CN101532386A Method and device for underpinning antifriction separator for shallow underground space construction |
| 09/10/2009 | US20090224596 Cutting Elements Disposed On A Drum |
| 09/09/2009 | CN201306170Y Disk cutter ring with unsymmetrical inside and outside bezels |
| 09/09/2009 | CN100538010C Method for laying structures of forming underground tunnel and its structure |
| 09/02/2009 | EP2094943A1 Designing drilling pattern for excavating rock cavern |
| 09/02/2009 | EP2094942A1 Designing drilling pattern for excavating rock cavern |
| 09/02/2009 | CN201301714Y Water-stopping device for procedure of exiting starting well or entering receiving well of tunneling machine tool |
| 09/02/2009 | CN101520292A Method for excavating and blasting tunnel-type anchorage cavern |
| 09/02/2009 | CN101519969A Double partition two-arch tunnel |
| 09/02/2009 | CN101519968A Hopper slag collecting pit |
| 09/02/2009 | CN100535392C Bridge type shield construction method for box type bridge |
| 09/02/2009 | CN100535391C Mechanical breaking construction method for use as shield tunneling machine reached tunnel portal |
| 08/30/2009 | CA2713937A1 A method and an apparatus for mining a material in an underground environment |