| 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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| 01/15/2014 | CN103510968A Micro-disturbance grouting method for water-rich weak stratum shield to pass through building |
| 01/15/2014 | CN103510963A Segment positioning control system of shield tunneling machine based on multi-sensor information fusion and control method |
| 01/15/2014 | CN103510962A Soft soil stratum shield penetration building grading deformation control method |
| 01/15/2014 | CN103510961A Method for determining width and angle of blade of disc cutter of whole-section tunnel boring machine |
| 01/15/2014 | CN103510960A Sectionalized sedimentation control method for long-distance penetration of shield tunneling among building group |
| 01/15/2014 | CN103510959A Excavation technique for shallow-buried large-span small-spacing loess tunnel |
| 01/15/2014 | CN102587919B Multi-spiral self-driven walking type tunneling device and method |
| 01/15/2014 | CN102425431B Ultra-close coal layer mining roadway distributing method |
| 01/15/2014 | CN102383808B Optimized laneway arrangement structure for high gas mining work surface |
| 01/15/2014 | CN102364048B Comprehensive mechanized rock roadway tunneling machine |
| 01/15/2014 | CN102251777B Large-scale karst cavity treatment method for karst tunnel |
| 01/09/2014 | WO2014006204A2 Drilling device and method |
| 01/08/2014 | EP2682563A2 Error resilient sensor system for determining a spatial relationship between installation components under harsh environmental conditions |
| 01/08/2014 | CN203383826U Movable soil moving device |
| 01/08/2014 | CN203383825U Square cross-section cutting device of full-face tunnel boring machine |
| 01/08/2014 | CN203383824U Flow saturation resistant partitioned controlled energy saving type shield thrust hydraulic system |
| 01/08/2014 | CN203383823U Shield tunneling machine cutter head adaptable to soft layer |
| 01/08/2014 | CN103498684A Embedded type dual-liquid grouting device achieving synchronization of shield tail of shield machine |
| 01/08/2014 | CN103498682A Hauling mechanism for drill jumbo to pull drilling machine to walk |
| 01/08/2014 | CN103498681A Method for preventing hard roof large-area abnormal pressure coming from fully mechanized caving face |
| 01/08/2014 | CN103498674A Composite rotary-cut mining machine |
| 01/08/2014 | CN102587929B Earth pressure balance shield machine without cutter disk |
| 01/08/2014 | CN102587920B Tunnel entrance bias section construction method |
| 01/08/2014 | CN102337896B Roller type cutter rectangular pipe jacking machine |
| 01/03/2014 | WO2014004405A1 Tunnel boring machine with cutterhead support assembly supporting a variable number of drive systems |
| 01/03/2014 | WO2013147652A3 Subway station and method for constructing same |
| 01/01/2014 | CN203374282U Head sheave chamber arrangement structure of mine underground grounded multi-rope lifting system |
| 01/01/2014 | CN103492674A Cutter assembly for tunnel boring machine with pressure compensation |
| 01/01/2014 | CN103485793A Coal-mine deep shaft connecting chamber group structure and arrangement method thereof |
| 01/01/2014 | CN103485792A Wall concealed movable door sealing mechanism and construction method for underground continuous wall with reserved hole |
| 01/01/2014 | CN103485791A Construction method for in-situ maintenance or extension of road tunnel |
| 01/01/2014 | CN103485790A Shallow tunneling method for pipe-proof-supporting structure combined system |
| 01/01/2014 | CN103485789A TBM (tunnel boring machine) mounting room high-low step manufacturing and constructing method |
| 01/01/2014 | CN103485288A Construction process of double-layer jacking culvert penetrating through existing railway lines |
| 01/01/2014 | CN103484783A Alloy for cutter ring of disk type hobbing cutter and preparation method thereof |
| 01/01/2014 | CN102619523B Unequal-height tank whole jacking construction method |
| 01/01/2014 | CN102536255B Multilevel stepped hole-expansion cutter head for shield machine |
| 01/01/2014 | CN102392650B Non-explosive tunnel excavation construction method |
| 01/01/2014 | CN101749029B Ring body for suppressing propagation of earth pressure, its mounting structure, disc cutter and roller device |
| 12/26/2013 | US20130341998 Tunnel boring machine with cutterhead support assembly supporting a variable number of drive systems |
| 12/25/2013 | EP2675997A2 Cutter assembly for tunnel boring machine with pressure compensation |
| 12/25/2013 | CN203362175U Skip type rock loading machine |
| 12/25/2013 | CN203362174U Operation platform for coal mine roadway shed erection |
| 12/25/2013 | CN203362173U Shield machine cutter head capable of preventing edge scrapers from falling |
| 12/25/2013 | CN203362172U High-pressure water washing system of shield bunker |
| 12/25/2013 | CN203362171U Shield structure for open-type hard rock tunnel boring machine |
| 12/25/2013 | CN203362170U Shield heading machine for specially-shaped-section tunnel |
| 12/25/2013 | CN203362169U Attitude adjusting device of miniature shield machine |
| 12/25/2013 | CN203362168U 盾构掘进机 Shield tunneling machine |
| 12/25/2013 | CN203362167U 盾构掘进机 Shield tunneling machine |
| 12/25/2013 | CN203362166U Supporting work platform for heading roadway |
| 12/25/2013 | CN203360960U People and vehicle mixed traffic tunnel with safety isolation facility |
| 12/25/2013 | CN103470285A Construction device for in-situ maintenance or extension of highway tunnel |
| 12/25/2013 | CN103470269A Break joint-type efficient buffer structure of high-speed railway tunnel portal |
| 12/25/2013 | CN103470268A Zero-spacing asymmetric double-hole tunnel structure and construction method thereof |
| 12/25/2013 | CN103470267A Long tunnel fast construction process |
| 12/25/2013 | CN102434170B Air bag piston stretching device of pipe connecting device for slurry shield |
| 12/25/2013 | CN102425427B Method for constructing tunnel by utilizing shield empty-pushing crossing mine method |
| 12/19/2013 | WO2013007350A3 Tunneling and extraction machine |
| 12/18/2013 | CN203347804U Weak broken wall rock tunnel room and foundation pit support composite structure |
| 12/18/2013 | CN203347802U Single-hole double-track mining tunnel based on metro B-type automobile limit optimization design |
| 12/18/2013 | CN203347801U Large-section tunnel cross section structure |
| 12/18/2013 | CN203347800U Underground coal mine temporary refuge chamber arrangement structure |
| 12/18/2013 | CN203347799U Shield tunneling machine capable of achieving three-dimensional grouting |
| 12/18/2013 | CN203347798U Assembled type slag basin |
| 12/18/2013 | CN203347797U All-functional sludge-water balanced jacking pipe |
| 12/18/2013 | CN203347796U Oil-pressure jacking pipe synchronizing bar |
| 12/18/2013 | CN203346749U One-way slope mine tunnel capable of realizing bidirectional movement |
| 12/18/2013 | CN103452568A Horizontal transport haulageway for mid-deep and deep mining |
| 12/18/2013 | CN103452567A Hob mounting position adjusting structure of full face hard-rock tunnel boring machine |
| 12/18/2013 | CN103452566A Vertical shaft TBM device |
| 12/18/2013 | CN103452565A Hermetic water-proof device for use in shield launching and receiving |
| 12/18/2013 | CN103452564A Shield pipe piece fixing device |
| 12/18/2013 | CN103452563A Construction method applicable to drift sand or weak surrounding rock |
| 12/18/2013 | CN103452562A Mining multifunctional milling and drilling machine |
| 12/18/2013 | CN103452561A Vertical in-tunnel construction method of multilayer transverse channel of underground excavation station of metro, and construction method on east side and west side |
| 12/18/2013 | CN102296964B Method for enlarging and digging soft surrounding rock primarily-supported section of large-section tunnel |
| 12/11/2013 | EP2672057A1 Dynamic working area |
| 12/11/2013 | CN203335089U Protruding type environment-friendly tunnel portal with supports |
| 12/11/2013 | CN203335088U Horn mouth type tunnel portal structure |
| 12/11/2013 | CN203335087U Synchronous mechanical telescopic arm |
| 12/11/2013 | CN203335086U Shield end strengthening structure |
| 12/11/2013 | CN203335085U Weak surrounding rock and tunnel periphery surrounding rock excavation device |
| 12/11/2013 | CN203335072U Multifunctional comprehensive hydraulic drill loader |
| 12/11/2013 | CN103437786A Shield sludge cleansing/recycling/reusing system and method |
| 12/11/2013 | CN103437785A System for recycling slurry and water of grouting pipeline cleaning for shield machine |
| 12/11/2013 | CN103437783A Shallow-buried excavation long-span pilot tunnel arch cover combined construction method |
| 12/11/2013 | CN103437777A Coal mining roadway |
| 12/11/2013 | CN103437776A Handpiece of tunnel borer and tunnel borer with same |
| 12/11/2013 | CN103437775A Open-type full-face rock ripper |
| 12/11/2013 | CN103437774A Shield excavation machining method |
| 12/11/2013 | CN103437773A Experimental equipment for shield tail brush |
| 12/11/2013 | CN103437772A Pipe-jacking construction method of underground passage and tunnel structure |
| 12/11/2013 | CN103437771A Indoor model test device capable of simulating slurry balance shield construction and use method thereof |
| 12/11/2013 | CN103437770A Supporting method for excitation gap pressure relief soft rock roadway |
| 12/11/2013 | CN103434518A Tunnel maintenance platform |
| 12/11/2013 | CN102518439B Method for constructing tunnel with uncovered hole section in middle |
| 12/11/2013 | CN102493813B Shield tunneling machine for underground pipeline |
| 12/11/2013 | CN102418531B Tunneling construction method for directly removing overpass group piles by using shield machine |
| 12/11/2013 | CN101608547B Method and device for digging tunnel and preventing overbreak |