| 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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| 07/10/2013 | CN102269013B Method for mechanically filling gangue on single support working surface under complex coal seam condition |
| 07/10/2013 | CN102155233B Tunnel excavation construction method |
| 07/04/2013 | DE102011122578A1 Device for expanding tunnel from old lighting space limited by old tunnel roof to new lighting space in demolishing area, comprises protection unit with multiple protecting plates for protecting demolishing old tunnel roof from breaking |
| 07/03/2013 | EP2610587A1 Underground Soil Excavation |
| 07/03/2013 | EP2610586A1 Underground soil excavation |
| 07/03/2013 | CN103184877A Method for fixing shield segment |
| 07/03/2013 | CN103184876A Shield tunneling machine sinking or rising prevention method |
| 07/03/2013 | CN103184875A Method for replacing cutter of jacking type shield tunneling machine |
| 07/03/2013 | CN103184874A Plugging method for preventing collapse in shield tunneling machine jacking process |
| 07/03/2013 | CN103184873A Tunneling method for construction with water in underground pipeline |
| 07/03/2013 | CN102345461B Subsequent project and shield driving parallel construction method for long-distance railway tunnel |
| 07/03/2013 | CN102287198B Construction method for river-crossing shield tunnel crushed stratum communication channel |
| 07/03/2013 | CN102287194B Construction method of multi-span gently arc tunnel |
| 07/03/2013 | CN102242633B Method for replacing tail brush in extra large diameter shield driving under high water pressure condition |
| 07/03/2013 | CN102155236B Shield starting counter-force base |
| 06/26/2013 | CN203022765U Semicircular pipe jacking machine |
| 06/26/2013 | CN203022764U Hydraulic control system of development machine integrating dust extraction and outburst prevention |
| 06/26/2013 | CN203022763U Hydraulic control system of drill loader |
| 06/26/2013 | CN203022762U Tunnel structure capable of simultaneously meeting aerial drainage and passage requirements in tunnel diversion period |
| 06/26/2013 | CN203021884U Internal double-layer prefabricated carriageway structure of shield tunnel |
| 06/26/2013 | CN103174439A Construction method for shield tunnel slow condensing type synchronous grouting |
| 06/26/2013 | CN103174434A Dissymmetric double-linking-arch tunnel structure and construction method thereof |
| 06/26/2013 | CN103174433A Shield tunneling machine tool with compound sensor |
| 06/26/2013 | CN103174432A Cutting disc driving device used for tunnel engineering machinery |
| 06/26/2013 | CN103174431A Hob cutter ring embedded with alloy steel bars |
| 06/26/2013 | CN103174430A Shallow-buried large-span water conveying tunnel three-stage five-step digging method |
| 06/26/2013 | CN103174429A Underground cavity extra-large dome excavating construction method |
| 06/26/2013 | CN102562082B Shield machine with rolling stopper |
| 06/26/2013 | CN102071950B Method for protecting shield tail brush and preventing shield tail from seepage |
| 06/19/2013 | CN203008974U Device for detecting excavated earth volume of shield tunneling machine |
| 06/19/2013 | CN203008928U Tunnel structure for high-speed railway |
| 06/19/2013 | CN203008927U High-speed railway single-track tunnel portal buffer structure |
| 06/19/2013 | CN203008926U High-speed railway double-track tunnel portal buffer structure |
| 06/19/2013 | CN203008925U Shield barrier-free launching apparatus |
| 06/19/2013 | CN203008924U Hydraulic motor compound drive device for cutter-head motor of TBM (tunnel boring machine) |
| 06/19/2013 | CN203008923U Tilting lifting temporary supporting device |
| 06/19/2013 | CN203008922U Shield driving measuring system for prolonging station-moving distance |
| 06/19/2013 | CN203008921U Rubber curtain mounting structure for shield launching |
| 06/19/2013 | CN103161476A Mechanical shaft-forming method of shield cutterhead maintenance shaft in tunnel and underground construction |
| 06/19/2013 | CN103161474A Construction method of down hole interchange roadway |
| 06/19/2013 | CN103161473A Slurry balance push bench cutter disk drive device |
| 06/19/2013 | CN103161472A Concave cutter of slurry balance tube push bench |
| 06/19/2013 | CN103161471A Construction method in which large-diameter shield advances across air shaft in long distance |
| 06/19/2013 | CN103161470A Construction method for shield machine to penetrate through large caliber pipeline in long distance |
| 06/19/2013 | CN102322268B Protecting device of shield machine thrust oil cylinder |
| 06/19/2013 | CN102220868B Urban shallow buried large-section tunnel five-step excavating method |
| 06/19/2013 | CN101864960B Carst region double-arch road tunnel construction method |
| 06/19/2013 | CN101812990B Slurry-adding foam system |
| 06/19/2013 | CN101672184B Rice character type structure arrangement method of hobs of full section rock digging machine |
| 06/13/2013 | WO2013084543A1 Tunnel excavation device |
| 06/13/2013 | DE102011120760A1 Bracket assembly for tunnel construction machine, has a parallel guide set movable at a constant orientation and at the same angle with respect to the base, and a tool assembly indirectly and/or directly fastened to truss element |
| 06/13/2013 | DE102011120759A1 Tool device for e.g. tunnel excavator, has first tool adjusted in first position when second tool is adjusted in second position, where first tool is positioned in second position when second tool is positioned in first position |
| 06/12/2013 | CN202991718U Movable circulating cooling water pool device for multi-interval shield excavation |
| 06/12/2013 | CN202991052U Composite type earth pressure balance shield machine with front supports and rear supports |
| 06/12/2013 | CN202991051U Reinforcing structure capable of realizing shield reception without using water-stopping cord fabric |
| 06/12/2013 | CN202991050U Shield tunneling machine soil improvement device |
| 06/12/2013 | CN202991028U Heading machine |
| 06/12/2013 | CN103154434A Closed trench tunnels |
| 06/12/2013 | CN103149862A Automatic sound emission monitoring method and automatic sound emission monitoring device |
| 06/12/2013 | CN103148313A Device and method for blocking connecting place between pipes of shield tunneling machine |
| 06/12/2013 | CN103147754A Second-operation rotary table mechanism for heading machines |
| 06/12/2013 | CN103147750A Cutting part of heading machine |
| 06/12/2013 | CN102587925B Shielding earth pressure gage replacing device |
| 06/12/2013 | CN102155232B Construction method of large-span asymmetrical double-arch railway tunnel under terrain bias pressure condition |
| 06/12/2013 | CN101929337B TBM (Tunnel Boring Machine) oil cylinder propelling and arc-shaped slideway stepping method |
| 06/12/2013 | CN101864959B Method for tunneling construction of main structure of underground station |
| 06/12/2013 | CN101858223B Method for constructing structure for forming underground tunnel on boundary of rock bed |
| 06/06/2013 | WO2013079548A1 Leveling instrument for guiding a tunnel-boring machine |
| 06/06/2013 | WO2012156843A3 Mobile mining machine and method for driving tunnels, roadways or shafts, in particular in hard rock |
| 06/06/2013 | WO2012058706A3 Full face tunneling machine |
| 06/05/2013 | CN202971771U Electromechanical-hydraulic combined type tunneling machine main driving system |
| 06/05/2013 | CN202970757U Dust-proof mat with gasbag structure |
| 06/05/2013 | CN202970726U Visual micro tunnel tunneling system applicable to model test |
| 06/05/2013 | CN202970725U Knife disc drive assembly of heading machine with square section |
| 06/05/2013 | CN202970724U Grouting system protecting knife of shield tunneling machine |
| 06/05/2013 | CN202970723U Protection device of shield tunneling machine cutter head |
| 06/05/2013 | CN202970722U Double-mode shield tunneling machine |
| 06/05/2013 | CN202970721U Shield tunneling machine hanging ring |
| 06/05/2013 | CN202970720U Construction structure for reinforcing deep weak structural surface of large rock slope |
| 06/05/2013 | CN202970719U Relay chamber-free jacking construction device for ultra-long pipe roof |
| 06/05/2013 | CN103133010A Arrangement method of upper lines and lower lines in city |
| 06/05/2013 | CN103133009A Subway construction method |
| 06/05/2013 | CN103133008A Short-distance tunnel excavation device |
| 06/05/2013 | CN103133007A Shield ground compartment opening method |
| 06/05/2013 | CN103133006A Method for judging slurry-water gushing during underwater slurry-water type shield tunneling |
| 06/05/2013 | CN102226412B Underground dark mining drilling well gas extraction method |
| 06/05/2013 | CN102061923B Tunnel construction method capable of protecting existing building |
| 05/30/2013 | WO2012114249A3 A method and equipment for tunnelling |
| 05/30/2013 | WO2012058705A3 Tunneling machine |
| 05/29/2013 | DE112011102587T5 Untergrundbohrmaschine Underground drilling machine |
| 05/29/2013 | CN202954821U Novel single-fulcrum central hob device for drivaging |
| 05/29/2013 | CN202954820U Tail brush of alarming type shield tunneling machine |
| 05/29/2013 | CN103123391A Wireless navigation and positioning system and method for heading machine |
| 05/29/2013 | CN103122764A Automatic mobile type transient electromagnetic field detection method and device |
| 05/29/2013 | CN101806217B Tunneling method for three-line parallel small-distance shallow-buried and unsymmetrical-pressure tunnel groups |
| 05/29/2013 | CN101787890B Rotating control method of shield segment splicing machine |
| 05/29/2013 | CN101749028B Cross-pulling construction method for soft soil zone with high ground water level |
| 05/29/2013 | CN101749024B Pipe-pulling construction method of underground buried box culvert |
| 05/29/2013 | CN101660419B Construction method for putting tunnel shield into hole in special stratum |
| 05/29/2013 | CN101660418B Box culvert jack-in replacement rectangular pipe support method used for tunnel construction |