| 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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| 10/23/2013 | CN203248164U Drive grease pipe of cutterhead drive device |
| 10/23/2013 | CN203248163U Assembled type shield operating system |
| 10/23/2013 | CN203248162U Foam oil filling device |
| 10/23/2013 | CN103364218A Miniature TBM (Tunnel Boring Machine) excavation system for tunnel excavation in physical simulation test |
| 10/23/2013 | CN103362520A Marking method for three-centred arch roadway excavation contour line |
| 10/23/2013 | CN103362519A Safe and quick coal roadway tunneling method |
| 10/23/2013 | CN103362518A Multi-head pipe-jacking device |
| 10/23/2013 | CN103362517A Assembled jacking pipe |
| 10/23/2013 | CN103362516A Combined type shield tunneling machine |
| 10/23/2013 | CN103362515A High-pressure water washing system for soil chamber of shield tunneling machine |
| 10/23/2013 | CN103362514A Speedy tunneling method for gas drainage roadway |
| 10/23/2013 | CN103362513A Transformation and construction method for existing cavity in underground excavation region |
| 10/23/2013 | CN103362512A Method for controlling drawing of excavation outline in three-centered arch and fork construction of sinking and driving engineering |
| 10/23/2013 | CN102359379B Tunnel construction method |
| 10/23/2013 | CN102312673B Construction method for allowing shield to pass through operated subway tunnel in short distance under complex working conditions |
| 10/23/2013 | CN102305095B Flat guide ventilation operation system of extra-long deeply-buried road tunnel |
| 10/23/2013 | CN102305086B Multifunctional mobile operating platform for coal mine tunnel |
| 10/23/2013 | CN102305082B Method for relieving and cutterhead repairing of shield machine in weathering groove |
| 10/23/2013 | CN102296963B Construction method for ultra-long deep-buried road tunnel |
| 10/23/2013 | CN102268993B Method for excavating tunnel in high liquid limit soil |
| 10/22/2013 | US8562254 Door arrangement for a tunneling machine |
| 10/16/2013 | CN203239373U Multifunctional operation trolley for tunnel construction |
| 10/16/2013 | CN203239355U Jacking type cable sleeve channel structure |
| 10/16/2013 | CN203239354U Arranging structure utilizing large-tunnel construction space comprehensively |
| 10/16/2013 | CN203239353U Mining gantry type reversed loader |
| 10/16/2013 | CN203239352U Bearing and gear ring type rotary table for bottom ripping machine |
| 10/16/2013 | CN203239351U Bearing type rotary table for bottom ripping machine |
| 10/16/2013 | CN203239346U Auxiliary power equipment of heading machine |
| 10/16/2013 | CN103352706A Method for designing center bigeminal hobs of heading machine |
| 10/16/2013 | CN103352705A Computing method for thrust of shield tunneling machine cutter head system |
| 10/16/2013 | CN103352704A Construction method for enabling tunnel shield to pass through vertical shaft structure |
| 10/16/2013 | CN103352703A Mud draining construction method of thick muddy water of shield tunneling machine |
| 10/16/2013 | CN103352702A Receiving constructing method in shield tunnel |
| 10/16/2013 | CN103352701A Shield propelling constructing method of shield tunneling machine |
| 10/16/2013 | CN102434174B Bentonite grouting method for construction of shield tunnel |
| 10/16/2013 | CN102312674B Tunneling rotary knife rest |
| 10/16/2013 | CN102052080B Mechanical drive dual-disc development device for development machine |
| 10/10/2013 | WO2013151954A1 Cutting head tool for tunnel boring machine |
| 10/10/2013 | US20130264860 Cutting Head Tool for Tunnel Boring Machine |
| 10/10/2013 | US20130264420 Adaptable airport system with industrial zones and clean energy generation |
| 10/09/2013 | EP2647769A1 Milling head for use on a work machine |
| 10/09/2013 | CN203230431U Tunnel structure |
| 10/09/2013 | CN203230430U Large-span high-backfill open cut tunnel structure |
| 10/09/2013 | CN203230429U Constant annular width beveling-type tunnel opening buffer structure |
| 10/09/2013 | CN203230428U Brim beveling-type tunnel opening buffer structure |
| 10/09/2013 | CN203230427U Constant annular width beveling-type tunnel portal structure |
| 10/09/2013 | CN203230426U Driving box of shield machine |
| 10/09/2013 | CN103344154A Carbonaceous schist tunnel blasting method and construction method |
| 10/09/2013 | CN103343693A Design method for telescopic multiple-cutting-edge expanding excavation hob partition cutting cutterhead |
| 10/09/2013 | CN103343692A Radar antenna mounting device for cutter head of shield tunneling machine |
| 10/09/2013 | CN103343691A Posture adjusting device of minitype shield tunneling machine |
| 10/09/2013 | CN103343690A Shaft antiseep structure used when large section of inclined shaft passes through aquifer and construction method thereof |
| 10/09/2013 | CN103343689A Full-functional slurry balance push pipe |
| 10/08/2013 | CA2639170C Mining machine with driven disc cutters |
| 10/02/2013 | CN203223227U Novel safety tunnel capable of overcoming black-hole effect |
| 10/02/2013 | CN203223226U Screw conveyor for shield tunneling machine applied to clay geological condition |
| 10/02/2013 | CN203223225U Drilling device additionally installed on hard rock tunneling machine |
| 10/02/2013 | CN203223224U Drilling and blasting device additionally arranged on hard rock heading machine |
| 10/02/2013 | CN203223223U Hydraulic impact hammer device additionally installed on hard rock tunneling machine |
| 10/02/2013 | CN203223219U Arch operation platform device suitable for heading machine |
| 10/02/2013 | CN103335568A Method for improving light exposure quality effect of coal mine tunnel periphery hole |
| 10/02/2013 | CN103334778A Construction technology of step temporary support and partial double side walls |
| 10/02/2013 | CN103334768A Method for designing shading transition facility for road tunnel entrance |
| 10/02/2013 | CN103334767A Synchronous mechanical telescopic boom |
| 10/02/2013 | CN103334766A Cutterhead motor and inertia flywheel compound driving device of TBM |
| 10/02/2013 | CN103334765A Shield cutter head driving device with cam ring motor |
| 10/02/2013 | CN103334764A Method for designing rock breaking cutterhead combined by flexible expanding excavation hobbing cutters and water jets |
| 10/02/2013 | CN103334763A Method for controlling influence on adjacent pile foundation in case that shield penetrates through hard rock stratum |
| 10/02/2013 | CN103334762A Oil-pressure top pipe synchronous rod |
| 10/02/2013 | CN103334761A Method of constructing shallow tunnel underground passage variable-cross section cross mid-partition wall |
| 10/01/2013 | US8548609 Method and software product for designing drilling pattern for rock cavity excavation |
| 09/26/2013 | WO2013139141A1 Self-walking and tunnelling apparatus combining spiral pull and propulsion |
| 09/26/2013 | WO2013139069A1 Earth pressure balance shield machine without cutter disk |
| 09/25/2013 | CN203214069U Foam injecting device of cutter of shield tunneling machine |
| 09/25/2013 | CN203214068U Long-arm frame-suspension-type comprehensive mechanized tunneling machine |
| 09/25/2013 | CN203214067U Construction device preventing tube push bench and tube coupling from receding |
| 09/25/2013 | CN103321652A Telescopic arm with hanging basket |
| 09/25/2013 | CN103321651A Global-function slurry balance jacking pipe |
| 09/25/2013 | CN103321650A Elliptical tunnel boring machine |
| 09/25/2013 | CN103321649A Octagonal tunnel boring machine |
| 09/25/2013 | CN103321648A Method and device for rotating and controlling segment erector of tunneling machine |
| 09/25/2013 | CN103321647A 盾构刀盘及其制造方法 Shield cutter and its manufacturing method |
| 09/25/2013 | CN103321646A Ground pass shield tunneling machine |
| 09/25/2013 | CN103321645A Anterior shield body of shield and processing method thereof |
| 09/25/2013 | CN103321644A Mechanical mode and control blasting combined tunneling method |
| 09/25/2013 | CN103321643A Excavating method for ox-nose shaped roadway |
| 09/25/2013 | CN103321642A Gob-side entry retaining adjoining rock stabilizing method based on lateral rock formation pre-splitting control |
| 09/25/2013 | CN102425416B Coal mine high stress area roadway driving face impact ground pressure control method |
| 09/25/2013 | CN102162361B Mechanically-driven hard-rock double-head tunneling machine |
| 09/24/2013 | US8540319 Bit replacing device for excavating machine |
| 09/19/2013 | WO2013135076A1 Vibration damping device and engineering mechanical equipment |
| 09/18/2013 | CN203201562U Shield tunneling machine initial counter-force frame convenient to detach, install and transport |
| 09/18/2013 | CN203201553U High pressure water pump device of coal mine heading machine |
| 09/18/2013 | CN103314183A Method and related devices for carrying out TBM excavation and expansion blasting by using blast protector and cart |
| 09/18/2013 | CN103306688A Construction method of synchronous grouting process for ground in-out shield-driven tunnel |
| 09/18/2013 | CN103306686A Tunnel structure and method for preventing volcanic eruption |
| 09/18/2013 | CN103306685A Shield segment structure and shield tunnel |
| 09/18/2013 | CN103306684A Process for grouting on back of shield segment |
| 09/18/2013 | CN103306683A Construction method for comprehensive precipitation in hole in deep-buried tunnel excavation process |
| 09/18/2013 | CN103306682A Long-span and high-side-wall underground space building and excavation support method thereof |