| 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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| 05/23/2013 | WO2013073754A1 Tunnel excavation device |
| 05/23/2013 | WO2012058701A3 Tunneling machine |
| 05/22/2013 | CN202946181U Tunnel ventilation system based on shield tunneling machine |
| 05/22/2013 | CN202946165U Slurry type hydraulic drive jacking pipe |
| 05/22/2013 | CN103119245A Underground boring machine |
| 05/22/2013 | CN103114860A Rectangular heading machine with circular cutter disc and eccentric multiaxial cutter discs |
| 05/22/2013 | CN103114859A Mud adding type earth pressure balance tube push bench |
| 05/22/2013 | CN103114858A Ultrasonic real-time monitoring device for shield machine cutter anti-abrasion block thickness abrasion loss |
| 05/22/2013 | CN103114857A Shield tunnel construction method |
| 05/22/2013 | CN103114856A Construction method for in-situ broadening and remolding of existing double-arched tunnel |
| 05/22/2013 | CN103114672A Steel truss arc shack used for tunnel portal with permafrost in high and cold area |
| 05/22/2013 | CN103113052A High viscosity slurry for water-rich sandy gravel stratum slurry shield construction |
| 05/22/2013 | CN102251779B Shield machine with hobs abrasion display function |
| 05/16/2013 | WO2013069838A1 Tunnel reinforcement struture and tunnel construction method capable of controlling ground displacement using pressurization |
| 05/15/2013 | CN202937271U Mixing cabin structure of heading machine |
| 05/15/2013 | CN202937270U Heading machine cutter high-pressure water structure |
| 05/15/2013 | CN202937269U Cutterhead mechanism of slurry balance heading machine |
| 05/15/2013 | CN202937268U Cutter head mud inlet bin structure of development machine |
| 05/15/2013 | CN202937267U Improved center cutter for shield tunneling machine |
| 05/15/2013 | CN202937266U Hoisting box of underground jacking heading machine |
| 05/15/2013 | CN202937265U Hoisting box structure of large heading machine |
| 05/15/2013 | CN103104265A Advanced lining method and lining equipment used in construction of weak surrounding rock tunnel |
| 05/15/2013 | CN103104264A Urban interchange tunnel |
| 05/15/2013 | CN103104263A Heading machine suitable for complex stratum |
| 05/15/2013 | CN103104262A Mud water type hydraulic driving jacking pipe |
| 05/15/2013 | CN102022118B Method for realizing balanced arrival of shield machine |
| 05/14/2013 | US8439450 Tunneling apparatus including vacuum and method of use |
| 05/10/2013 | WO2013039315A3 Segment structure having vertical strands and horizontal shear keys and method for constructing shield tunnel using same |
| 05/08/2013 | CN202926342U Synchronous grouting system for shield tunneling machine |
| 05/08/2013 | CN202926336U Detachable lifting operation platform for tunnel |
| 05/08/2013 | CN202926335U Multipurpose heading machine |
| 05/08/2013 | CN202926334U Pipe jacking machine |
| 05/08/2013 | CN103089272A Method for constructing tunnel located at mountain slope toe |
| 05/08/2013 | CN103089271A Distributive girder assembly for large scale box culvert top pulling method and construction method thereof |
| 05/08/2013 | CN103089270A Excavating method suitable for large section loess tunnels |
| 05/08/2013 | CN102251747B Arc-shaped drill rack |
| 05/08/2013 | CN102155231B Quick feedback analyzing system in tunnel constructing process |
| 05/01/2013 | CN202914106U Underground tunnel dinting device |
| 05/01/2013 | CN202914105U Disc hobbing cutter ring embedded with conical head teeth |
| 05/01/2013 | CN103075162A Tunnel portal earth retaining device as well as underground pedestrian passageway construction system and method |
| 05/01/2013 | CN103075161A Quick underground obstacle clearing method for slurry shield construction |
| 05/01/2013 | CN103075160A Visual micro tunnel driving system suitable for model testing |
| 05/01/2013 | CN103075159A Shield tunneling machine cutter disc used for enriching large-particle-size boulder stratum |
| 05/01/2013 | CN103075152A Drill loader |
| 05/01/2013 | CN102287204B Slag stone cleaning device of boring machine |
| 05/01/2013 | CN102182467B Energy-saving installation method for disk-shaped hob and center hob |
| 05/01/2013 | CN102182466B Excavating method for jump-digging of double-side wall guide pit combined arch part of tunnel |
| 05/01/2013 | CN102168562B Control system for tunnel stratum loss and grouting simulation in centrifugal field |
| 05/01/2013 | CN102031974B Tubal curtain advanced support constructing method for deep mine roadway of coal mine passing through fault fracture zone |
| 05/01/2013 | CN101600850B Designing drilling pattern for excavating rock cavern |
| 04/25/2013 | WO2013057981A1 Process for dewatering slurry |
| 04/25/2013 | WO2013057442A1 Large-diameter drilling device |
| 04/24/2013 | CN202900282U Water stopping device between top pipe and tunnel opening |
| 04/24/2013 | CN103062414A Emergency sealing device for shield water burst accident rescue |
| 04/24/2013 | CN103061802A Rotating pedestrian path for shield tunneling machine |
| 04/24/2013 | CN103061778A Tunnel arch foot circumferential high pressure jet strengthening method and construction equipment |
| 04/24/2013 | CN103061777A Method for building urban underground tunnel shield cutter repairing space with preset reinforcing pile groups |
| 04/24/2013 | CN103061776A Method for repairing TBM (tunnel boring machine) cutter head in intra-tunnel high-pressure environment |
| 04/24/2013 | CN103061775A Fishtail center cutter for shield machine |
| 04/24/2013 | CN103061774A Shield tunnel construction environment simulation unit |
| 04/24/2013 | CN103061773A Up-down separating type underground excavation station construction passageway structure provided with mucking transport equipment and construction method |
| 04/24/2013 | CN103061772A Safe replacement device for soil pressure sensor |
| 04/24/2013 | CN103061771A Remining mine fully-mechanized coal mining face open-off cut tunneling process and supporting method |
| 04/24/2013 | CN103061770A Split tunneling and support method for roadways with near interlayer spacing |
| 04/24/2013 | CN103061213A Independent shield trolley sleeper and construction method thereof |
| 04/24/2013 | CN102518448B Tunnel grating system for changing speed perception of driver |
| 04/24/2013 | CN102322269B Super early receiving supporting structure of shield machine and super early receiving method |
| 04/24/2013 | CN102162362B Self-traveling mini underground pipeline tunneling machine |
| 04/23/2013 | DE202013002465U1 Ökologisch-ökonomischer Versorgungs- und Verkehrstunnel mit Hügel Ecological-economic utility and transport tunnels hill |
| 04/18/2013 | WO2013053225A1 Rescue machine for tunnel collapses |
| 04/17/2013 | CN202888909U Concentrated solar power supply system for highway tunnel |
| 04/17/2013 | CN202882953U Device used for hoisting duct piece |
| 04/17/2013 | CN202882937U Cable tunnel portal protection support |
| 04/17/2013 | CN202882936U Switching device of belt conveyer of tunnel boring machine |
| 04/17/2013 | CN202882935U Dual-mode cutter disc suitable for construction of long-distance and big-gradient deviated well tunnel |
| 04/17/2013 | CN202882934U Improved hob for shield machine |
| 04/17/2013 | CN202882933U Novel shield tunneling machine hobbing cutter |
| 04/17/2013 | CN202882932U Floating sealed reinforced hob structure |
| 04/17/2013 | CN202882931U Tearing knife provided with detection device |
| 04/17/2013 | CN103046933A Shield station-crossing tunneling and station parallel construction method |
| 04/17/2013 | CN102022121B Cutter driving device of shield machine |
| 04/11/2013 | WO2013050010A2 Device for monitoring the state of rotation of a disk cutter arrangement of a shield tunnel boring machine and disk cutter arrangement for a shield tunnel boring machine |
| 04/11/2013 | CA2848938A1 Device for monitoring the state of rotation of a disk cutter arrangement of a shield tunnel boring machine and disk cutter arrangement for a shield tunnel boring machine |
| 04/10/2013 | CN202866826U Shield tunnel working well outer end socket stratum reinforced structure |
| 04/10/2013 | CN202866815U Working face emergency lifting work platform for full-seam mining of thick coal seam |
| 04/10/2013 | CN202866814U Heading machine stepping device |
| 04/10/2013 | CN202866813U Shield-type development machine man lock gas mixture centralized control system |
| 04/10/2013 | CN202866812U Disc cutter ring for welding teeth |
| 04/10/2013 | CN202866811U Tunnel opening structure for shield tunneling machine holing |
| 04/10/2013 | CN103032081A Cross-river large-diameter slurry shield excavation and double-lining parallel construction method |
| 04/10/2013 | CN103032079A Constant annular width bevel type tunnel opening buffer structure |
| 04/10/2013 | CN103032078A Parallel construction method for shield arrival tunnel portal ring beam and shield crossing station |
| 04/10/2013 | CN103032077A Muck separating and utilizing device and method for deviation rectification and side-turning prevention of tunneling machine |
| 04/10/2013 | CN103032076A Method for correcting unconformable surface stratum shield tunneling construction |
| 04/10/2013 | CN103032075A Construction method for building ground inlet and outlet type shield tunnel |
| 04/10/2013 | CN103032074A Cutting tool for heading machine and manufacturing method thereof |
| 04/10/2013 | CN103032073A Urban subway mudstone stratum connected aisle and shield tunneling parallel construction method |
| 04/10/2013 | CN103032072A Method for disassembling, lifting and transferring closed type station shield to transferring line to be hoisted out |
| 04/10/2013 | CN103032071A Shield receiving forward-shift construction method of boulder group open excavation and embedment mutation space |
| 04/10/2013 | CN102587928B Complete equipment for construction of annular cutting arching pre-support tunnel |