| 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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| 12/12/2012 | CN202596733U Novel air pressure balance shield machine |
| 12/12/2012 | CN102817619A Combined advanced drilling exploration method for detecting water-free dissolving cavity and water dissolving cavity in tunnel |
| 12/12/2012 | CN102817618A Double strand chain saw of tunnel construction pre-grooving tester |
| 12/12/2012 | CN102817617A Novel inhaul cable type shield originating backrest substrate system |
| 12/12/2012 | CN102817616A Construction device and construction method for tunneling soft rock |
| 12/12/2012 | CN102817610A Tunneling, anchoring and supporting integrated machine |
| 12/12/2012 | CN102817378A Construction method of extra-large diameter shield tunnel penetrating through urban overhead pile foundations in close range |
| 12/12/2012 | CN102162364B Layout method for underground dense-medium shallow-slot coal preparation in coal mine |
| 12/12/2012 | CN101967980B Cutterhead closed type hydraulic drive system adopting revolving speed-variable and displacement-variable compound control |
| 12/12/2012 | CN101892845B Five-hole and four-path railway underwater tunnel and construction method thereof |
| 12/12/2012 | CN101824987B Method for constructing structure for underground tunnel |
| 12/11/2012 | US8328293 Shield machine |
| 12/06/2012 | WO2012166905A2 Tunneling apparatus |
| 12/06/2012 | WO2012162908A1 Method for preventing shield casing catching due to too large frictional resistance in earth pressure balance shield |
| 12/06/2012 | US20120308162 Media Editing |
| 12/05/2012 | EP2530237A1 Sludge treatment plant associated with a tunnel boring machine with a pressurised heading face and method for managing such a plant. |
| 12/05/2012 | EP2529081A1 Method and device for working rock |
| 12/05/2012 | CN202578705U Shield tunneling machine entrance portal structure |
| 12/05/2012 | CN202578704U Tunnel entrance transition cover |
| 12/05/2012 | CN202578703U Trough precutting test model machine for tunnel construction |
| 12/05/2012 | CN202578702U Movable continuous support system for shield-overlapped tunnel construction |
| 12/05/2012 | CN202578701U Split-structured pressure balancing cavity for inlet tunnel portals of shield tunneling machines |
| 12/05/2012 | CN202578700U Excavating structure of mountain tunnel |
| 12/05/2012 | CN202578699U Soil-engineering centrifugal machine hole-digging mechanical arm |
| 12/05/2012 | CN102808633A Shield tunneling machine and duct piece conveying device thereof |
| 12/05/2012 | CN102808628A Construction method of passage of large-section tunnel by water diversion fault |
| 12/05/2012 | CN102808627A Underground excavation construction method of steel pipe shed |
| 12/05/2012 | CN102168563B Static pressure jack-in method of pipe sheds or small ducts |
| 12/05/2012 | CN102121385B Tunnel excavation method for extending existing single-hole tunnel into double-arch tunnel |
| 12/05/2012 | CN102086767B Mud water balanced-type ring-shaped shield machine |
| 12/05/2012 | CN102076914B Worksite avoidance system |
| 12/05/2012 | CN102071944B Simulation detection system for surface subsidence of shield tunnel construction |
| 12/05/2012 | CN102061924B Transverse construction method for gate roadway head-on turning |
| 12/05/2012 | CN102031968B Tunnelling and shoring integrated machine and telescopic boom thereof |
| 12/05/2012 | CN101975069B Automatic telescopic crushing device for tunnelling machine |
| 11/28/2012 | EP2526551A1 Improvement in media editing |
| 11/28/2012 | CN202561053U Thrust cylinder of slurry shield heading machine |
| 11/28/2012 | CN202561047U Sealed mounting structure for shield tunneling machine |
| 11/28/2012 | CN202560321U Shield fission starting pipe line synchronous move device |
| 11/28/2012 | CN202560239U Lifting type drilling and blasting trolley |
| 11/28/2012 | CN202560238U Soft and hard rock mode conversion heading machine |
| 11/28/2012 | CN202560237U Machine tail anti-rotation device for shield machine |
| 11/28/2012 | CN202560236U Combination type sliding plate rolling paving frame shield tunneling machine |
| 11/28/2012 | CN202560235U Dismantling device for lower segment of forming shield tunnel |
| 11/28/2012 | CN202560234U Astylar long-span underground space structure |
| 11/28/2012 | CN202560232U Rear-mounted anchoring guider in hole |
| 11/28/2012 | CN102797475A Rake loading trolley |
| 11/28/2012 | CN102797474A Three-degree-of-freedom self-walking minitype shield machine |
| 11/28/2012 | CN102797473A Device for arranging shield in station |
| 11/28/2012 | CN102797472A Method for controlling construction posture of tunnel boring machine (TBM) in downhill inclined shaft |
| 11/28/2012 | CN102797471A TBM (tunnel boring machine) stepping method for open cutting of tunnel lining section in inclined shaft |
| 11/28/2012 | CN102797470A Construction method capable of eliminating influences of large-deformation stratum in process of constructing inclined shaft by shield method |
| 11/28/2012 | CN102797469A Method for constructing inclined shaft by applying TBM (Tunnel Boring Machine) with earth pressure balancing function |
| 11/28/2012 | CN102797468A Minimum over-burden originating method for shield tunnel |
| 11/28/2012 | CN102797467A Automatic rock drilling device special for tunnel excavation |
| 11/28/2012 | CN102322853B Tunnel back break control laser lofting device |
| 11/28/2012 | CN102174790B Assembled tie for shield construction and construction method thereof |
| 11/28/2012 | CN102140924B Double-shell coupling supporting method of deep soft rock tunnel |
| 11/28/2012 | CN102102521B Method for broadening and rebuilding soft soil shallow tunnel in operation state |
| 11/28/2012 | CN102071945B Method for driving-in and driving-out construction in built structure closed in three sides for shield |
| 11/28/2012 | CN102042020B Construction device and construction method for preventing push bench and pipeline from sinking |
| 11/28/2012 | CN101899977B Ultra-shallow earth-covered subway shield traversing operation tunnel construction method of |
| 11/28/2012 | CN101749025B Improved construction method of soil mass of extra-large-diameter soil pressure balancing shield on soft soil stratum |
| 11/28/2012 | CN101705827B Muddy water and air balance shield pressure control method and device |
| 11/28/2012 | CN101595272B Microtunnelling system and apparatus |
| 11/22/2012 | WO2012115858A3 Cutter assembly for tunnel boring machine with pressure compensation |
| 11/22/2012 | US20120294680 Device and method for anchoring a cable bolt |
| 11/22/2012 | CA2835295A1 Mobile mining machine and method for driving tunnels, roadways or shafts, in particular in hard rock |
| 11/21/2012 | CN202545827U Shield tail emergency sealing device for shield machine and mounting structure thereof |
| 11/21/2012 | CN202544891U Venting opening structure for municipal common ditch |
| 11/21/2012 | CN202544852U Ceiling turning structure for high-altitude manned operating platform of tunnel equipment |
| 11/21/2012 | CN202544851U Assembled rectangular pipe jacking machine |
| 11/21/2012 | CN202544850U Inclined edge cutter of shield machine |
| 11/21/2012 | CN202544849U Profile modeling cutter device |
| 11/21/2012 | CN102787847A Roadway tunneling machine |
| 11/21/2012 | CN102787846A Upper-blocking and lower-draining construction method for undersea tunnel fault fracture zone |
| 11/21/2012 | CN102787845A Segmented construction method of extra-long tunnels by adopting development machines to construct inclined shafts and headings first |
| 11/21/2012 | CN102787844A Tunnel building method for heading pilot tunnel and inclined shaft on super long tunnel with small-diameter heading machine |
| 11/21/2012 | CN101975067B Light-section mud shield powder fine sand layer receiving method |
| 11/21/2012 | CN101839138B Development machine |
| 11/21/2012 | CN101798929B Tunnel wall structure for reducing strong reflection propagation multipath effect of millimeter waves |
| 11/15/2012 | DE202012103593U1 Bedienerfreundliche Sensorik zum Ermitteln einer mechanischen Belastung eines Abbauwerkzeugs einer Tunnelbohrmaschine User-friendly sensor for detecting a mechanical loading of a mining tool of a tunnel boring machine |
| 11/14/2012 | CN202531188U Protection block for cutter of cutter head of shield machine |
| 11/14/2012 | CN202531187U Medium-sized soft soil shield machine |
| 11/14/2012 | CN202531186U Hard rock shield tunneling machine of trapezoid shaft hobbing cutter |
| 11/14/2012 | CN202531185U Dead-beat mounting structure of shaft seat stationary type claw knife on shield tunneling machine cutterhead |
| 11/14/2012 | CN202531184U Fixing structure of scraping knife of shield machine |
| 11/14/2012 | CN202531183U Dual independent drive system for shield machine |
| 11/14/2012 | CN202531182U End cover fixed type three-edge hob with abrasion indication function |
| 11/14/2012 | CN202531181U Central cutter individual drive system of shield machine |
| 11/14/2012 | CN202531180U Hard rock shield machine tool pan structure |
| 11/14/2012 | CN202531179U Structure for mounting advanced cutter and cavel-shaped cutter for shielding machine in cylindrical cutter box |
| 11/14/2012 | CN202531178U Hard rock shielding machine cutter structure provided with square bearing block fixed hob |
| 11/14/2012 | CN202531177U Cutter head structure of hard rock shield machine, used for mounting fixed hob with square bearing seats |
| 11/14/2012 | CN202531176U Pressure balancing cavity for tunnel entrance of shield machine |
| 11/14/2012 | CN202531175U Manhole structure of shield machine |
| 11/14/2012 | CN202531174U Compound double actively hinging devices of shield machine |
| 11/14/2012 | CN202531170U Drive device for conveyor of tunneling machine |
| 11/14/2012 | CN102777190A Opening structure of tunnel of shield method |
| 11/14/2012 | CN102777189A Intermediate-jacking-station-free jacking construction device of ultra-long pipe roof and method thereof |