| 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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| 04/10/2013 | CN102587923B Center shaft type precutting trough equipment |
| 04/10/2013 | CN102322270B Shield cutter for composite ground |
| 04/10/2013 | CN102287203B Air drill working device |
| 04/10/2013 | CN102080551B Three-amplitude construction method for inverted arch of primary support of weak broken wall rock tunnel |
| 04/10/2013 | CN102003187B Construction method of under cutting excavation supporting of of deeply buried soft-rock large tunnel |
| 04/10/2013 | CN101864963B Large-section loess tunnel construction method |
| 04/10/2013 | CN101812989B Foam generating device and foam generating method |
| 04/04/2013 | WO2013048306A1 Device and method for driving tunnels, galleries or the like |
| 04/04/2013 | WO2013047025A1 Drill bit exchange device for shield tunneling machine |
| 04/04/2013 | CA2850058A1 Device and method for driving tunnels, galleries or the like |
| 04/03/2013 | CN202851064U Roadway support protection and material conveying equipment |
| 04/03/2013 | CN202851008U Tunnel boring machine in-tunnel dismounting device |
| 04/03/2013 | CN202851007U Movable type work platform used for laneway drilling and supporting |
| 04/03/2013 | CN202851006U Cutting tool pan of stone drift heading machine |
| 04/03/2013 | CN202851005U Automatic rock drilling device special for tunnel excavation |
| 04/03/2013 | CN103025999A Tunnel excavation apparatus and tunnel excavation method |
| 04/03/2013 | CN103016655A Electromechanical-hydraulic composite type main drive system of tunnel boring machine |
| 04/03/2013 | CN103016027A Tunnel or roadway excavating method under weak and broken complicated geological conditions |
| 04/03/2013 | CN103016026A Method for supporting extruded swelling rock road tunnel |
| 04/03/2013 | CN103016025A Buffer structure of double-track tunnel portal of high-speed rail |
| 04/03/2013 | CN103016024A Buffer structure of single-track tunnel portal of high-speed rail |
| 04/03/2013 | CN103016023A Bell mouth tunnel portal structure |
| 04/03/2013 | CN103016022A Self-adaptation joint for deformation joint and application of self-adaptation joint for deformation joint |
| 04/03/2013 | CN103016021A Semicircular pipe jacking heading machine |
| 04/03/2013 | CN103016020A Compound driving device of TBM cutting disc motor hydraulic motor |
| 04/03/2013 | CN103016019A Heading and anchoring integrated machine |
| 04/03/2013 | CN103016018A Closed energy-saving shield screw conveyor hydraulic system |
| 04/03/2013 | CN103016017A Variable frequency drive shield thrust hydraulic system |
| 04/03/2013 | CN103016016A Two-stage step-type cutter head system for full-face rock tunnel boring machine |
| 04/03/2013 | CN103016015A Torque-balance jacking pipe |
| 04/03/2013 | CN103016014A Cutter head driving device for shield tunneling machine and synchronous control method thereof |
| 04/03/2013 | CN103016013A Shield tail brush of alarm-type shield tunneling machine |
| 04/03/2013 | CN103016012A Freezing reinforcement method for controlling multidirectional risk in shield tunneling machine going in or out of tunnel |
| 04/03/2013 | CN103015333A Guiding structure for culvert section jacking and jacking method using guiding structure |
| 04/03/2013 | CN102220879B Mine underground transport vehicle park |
| 04/03/2013 | CN102080548B Construction method of tunnel to cross airport runway by shield method |
| 03/28/2013 | WO2012166905A3 Tunneling apparatus |
| 03/28/2013 | US20130076100 Tunnel excavation apparatus and tunnel excavation method |
| 03/28/2013 | DE102006044733C5 Mobile Einhausung mit Vortriebsaggregaten Mobile housing with propulsion units |
| 03/27/2013 | CN202832609U Resistance reduction type airbridge for coal mine |
| 03/27/2013 | CN202832567U Single or double grout injection system of shield tunneling machine |
| 03/27/2013 | CN202832559U Open type flexible device used on slag tapping tape machine of Tunnel Boring Ballistic Missile (TBM) host machine |
| 03/27/2013 | CN202832558U Side-sited type tunnel boring machine (TBM) construction transport slag car pusher |
| 03/27/2013 | CN202832557U Small-diameter open type tunnel boring machine (TBM) stepping device |
| 03/27/2013 | CN202832556U Heading machine capable of cutting arbitrary shapes of sections |
| 03/27/2013 | CN202832555U Improved first knife for shield machine |
| 03/27/2013 | CN202832554U Shield-structured type heading machine pedestrian gate pressurization-decompression system |
| 03/27/2013 | CN202832553U All-in-one milling and excavating machine for mines |
| 03/27/2013 | CN202832552U Airborne maintenance platform and development machine employing same |
| 03/27/2013 | CN102996145A Automatic erecting shed platform device of fully mechanized mining face end |
| 03/27/2013 | CN102996141A Star wheel device, insertion board comprising star wheel device and heading machine comprising insertion board |
| 03/27/2013 | CN102996140A Heading machine and body frame thereof |
| 03/27/2013 | CN102996139A Hydraulic control system of drill loader |
| 03/27/2013 | CN102996138A Hydraulic control system of dust removal and outburst prevention integrated heading machine |
| 03/27/2013 | CN102996137A S-shaped curve based method for control track of shield tunneling machine |
| 03/27/2013 | CN102996136A Deformation control method for close-range downward penetration of shield through composite-foundation building |
| 03/27/2013 | CN102996135A Construction method for crossing for complex formation of shield under ultra-deep earth |
| 03/27/2013 | CN102996134A Roadway advancing method for realizing grouting consolidation and reserving small coal pillars |
| 03/27/2013 | CN102996133A Construction method applicable to intersection between inclined shaft and slant hole of weak surrounding rock tunnel |
| 03/27/2013 | CN102121386B Star wheel device and development machine |
| 03/27/2013 | CN101802346B Method and software product for designing drilling pattern for rock cavity excavation |
| 03/27/2013 | CN101663463B Method of modifying drilling pattern, rock drilling rig, and software product |
| 03/21/2013 | WO2013039315A2 Segment structure having vertical strands and horizontal shear keys and method for constructing shield tunnel using same |
| 03/20/2013 | CN202816089U Heading machine voice alarm prompt system and heading machine |
| 03/20/2013 | CN202810866U Tunnel entering construction system for shallow burying unsymmetrical loading section |
| 03/20/2013 | CN202810865U Water-stopping device used when excavating equipment enters receiving well |
| 03/20/2013 | CN202810864U Loading and transporting mechanism and drill loader |
| 03/20/2013 | CN202810863U Rack running gear for tunnel operation |
| 03/20/2013 | CN202810862U Shield type heading machine man lock system |
| 03/20/2013 | CN202810861U Shield type heading machine transfer cabin |
| 03/20/2013 | CN202810860U Shield tunneling machine cone-shaped cutterhead |
| 03/20/2013 | CN202810859U Shield type heading machine saturation cabin |
| 03/20/2013 | CN202810858U Roadway heading machine |
| 03/20/2013 | CN202809475U Full hydraulic full-automatic control tunnel invert trestle |
| 03/20/2013 | CN202803154U Earth pressure balance shield soil mass improving and stirring device |
| 03/20/2013 | CN102979533A Underground roadway dinting device |
| 03/20/2013 | CN102979532A Development method of transportation through auxiliary slope ramp matched with rubber belt inclined shaft |
| 03/20/2013 | CN102979531A Construction method and structure for reinforcing large rock slope deep weak structural plane |
| 03/20/2013 | CN102979530A Anti-shift system for coal mine roadway excavation |
| 03/20/2013 | CN102979529A Jacking device of tunnel measuring hole and construction method thereof |
| 03/20/2013 | CN102975195A Mole-imitating excavation robot |
| 03/20/2013 | CN102278117B Parallel pipe jacking construction simulation device |
| 03/20/2013 | CN102267034B Opening repairing method of large-gear-ring gear teeth of main bearing of tunnel tunnelling machine |
| 03/20/2013 | CN102061916B Power rear-mounted telescopic arm for tunneling machine |
| 03/20/2013 | CN101886544B Hinge system for shield machine and control method thereof |
| 03/13/2013 | CN202788867U Anti-slip apparatus for cable tunnel slope segment |
| 03/13/2013 | CN202788866U Air-cushion-type gas pressure regulation system for slurry shield |
| 03/13/2013 | CN202788865U Single-yoke support type open type full-section tunnel hard rock heading machine |
| 03/13/2013 | CN202788864U Two-way rotary deslagging cutter head of TBM (tunnel boring machine) |
| 03/13/2013 | CN202788863U Heavy type tearing cutter used for shield machine |
| 03/13/2013 | CN202788862U Air pressure mode shallow-buried excavation shield tunneling machine |
| 03/13/2013 | CN202788861U Scraper back abrasion-prevention structure for shield tunneling machine |
| 03/13/2013 | CN202788860U Shield structure type tunneling machine ground saturation diving system |
| 03/13/2013 | CN202788859U Anti-twisting device for hinged type shield body |
| 03/13/2013 | CN202788858U Shield machine cooling water tank |
| 03/13/2013 | CN202788857U Tunnel excavation trolley |
| 03/13/2013 | CN202788856U Heading machine drive main shaft axial bearing drive box |
| 03/13/2013 | CN202788848U Tunneling, anchoring and protection integrated machine |
| 03/13/2013 | CN202777503U Breathing air feed and discharge system in man lock capsule of shield structure type tunneling machine |
| 03/13/2013 | CN102966365A Novel air bridge construction method |