| 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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| 09/18/2013 | CN103306681A Tunneling sector rotation construction method |
| 09/18/2013 | CN103306680A Construction method for extending single-track tunnel to multi-track tunnel |
| 09/18/2013 | CN102425426B Energy-saving shield hydraulic feeding system for energy accumulator mounted on side of feeding oil inlet |
| 09/18/2013 | CN102383806B Construction technology for allowing tunnel to pass through ultra-large karst cave |
| 09/18/2013 | CN102345462B Method for determining stopping sight distance in small-radius spiral tunnel on expressway and method for widening tunnel section |
| 09/18/2013 | CN102278121B Blockage-preventing multi-way joint for injecting slurry |
| 09/18/2013 | CN102278118B 挖掘装置 Mining equipment |
| 09/18/2013 | CN102242632B System and method for walking type shield structure translation to transit |
| 09/18/2013 | CN102121394B Method for uncovering outburst coal seam by using pseudo lithosphere on laneway |
| 09/18/2013 | CN101929338B Hydraulic fan-shaped support system for controlling steel frame deformation in tunnel construction |
| 09/18/2013 | CN101749021B Receiving method for pipe pusher obliquely entering narrow receiving well in underground pipe pushing construction |
| 09/17/2013 | US8534765 Method for introducing a vertical shaft and shaft driving machine |
| 09/12/2013 | WO2013133546A1 Method for constructing underground tunnel |
| 09/11/2013 | CN203189061U Ground transportation hole used in mining work |
| 09/11/2013 | CN103299033A Tunneling machine |
| 09/11/2013 | CN103291317A Construction method for old tunnel segment detaching and tunnel expanding and tunnel expanding machine |
| 09/11/2013 | CN103291316A Large-scale underground cavern group arrangement design method |
| 09/11/2013 | CN103291315A Mine-car-gap-following waste rock distribution device under rock roadway continuous waste rock discharge |
| 09/11/2013 | CN103291314A Flow-saturation resistant zone-control energy-saving type shield thrust hydraulic system |
| 09/11/2013 | CN103291313A Arch crown pressure supporting system of excavation of earth pressure shield and construction method thereof |
| 09/11/2013 | CN103291312A Shield tunneling machine capable of realizing three-dimensional grouting |
| 09/11/2013 | CN103291311A Treating method for transverse penetrating of main chambers of water-sealed cave storage on unfavorable geologic structure plane |
| 09/11/2013 | CN103291310A Method for treating unfavorable geology at position where main chamber of water-sealed cave and vertical shaft are connected |
| 09/11/2013 | CN103291309A Treating method for unfavorable geologic body on one side of axis of main chamber of water sealed cave storage |
| 09/11/2013 | CN103291308A Boom-type roadheader for tunnel construction and tunnel construction method |
| 09/11/2013 | CN103291307A Advanced drainage method by aid of drilled holes for water-rich rock strata |
| 09/11/2013 | CN103291306A Tunneling machine |
| 09/11/2013 | CN103291291A Rolling friction or suspension friction impact excavating method and antiabrasion impact excavator for implementing the same |
| 09/11/2013 | CN102352755B 方箱盾构机 Square box shield machine |
| 09/11/2013 | CN102305091B Support structure for hard rock large-section tunnel construction, and construction method for support structure |
| 09/10/2013 | CA2487523C Mine ventilation panel system |
| 09/06/2013 | WO2013127517A1 Support structure for drive or return stations used in underground mining |
| 09/04/2013 | CN203181446U Operation room for shield tunneling machine |
| 09/04/2013 | CN203175572U Fore-lining equipment used for construction of weak surrounding rock tunnel |
| 09/04/2013 | CN203175569U Steel tube piece tunnel portal water-proof sealing structure in shield-driven tunnel breakthrough |
| 09/04/2013 | CN203175568U Internal sludge feeding and discharging control mechanism of pipe-jacking heading machine for cable tunnel |
| 09/04/2013 | CN203175567U Energy-saving type shield segment assembling positioning electrohydraulic control system adopting load-sensitive technology |
| 09/04/2013 | CN203175566U Hard alloy head of rotatable tearing cutter for shield tunneling machine |
| 09/04/2013 | CN203175565U Explosion-proof tunnel boring machine |
| 09/04/2013 | CN203175564U Fishing and clearing device of fallen metal objects in shield machine soil bin |
| 09/04/2013 | CN203175563U Connecting structure of shield machine counterforce frame and partial segment |
| 09/04/2013 | CN203175560U First conveyor of heading machine |
| 09/04/2013 | CN203175559U Secondary conveying turntable mechanism of heading machine |
| 09/04/2013 | CN203175555U Cutting unit of heading machine |
| 09/04/2013 | CN103277628A Flexible joint protecting device based on muddy water pipeline in muddy water shield |
| 09/04/2013 | CN103277113A Measuring device and control method applicable to evacuation platforms in subway tunnels |
| 09/04/2013 | CN103277112A Tunnel engineering train type rapid lifting and folding working platform |
| 09/04/2013 | CN103277111A Operating platform for mine heading face |
| 09/04/2013 | CN103277110A Construction method of overlapped shield tunnel |
| 09/04/2013 | CN103277109A Shield excavation construction method used for big-stickiness soil layer |
| 09/04/2013 | CN103277108A Slurry shield tunneling machine underwater arrival construction method |
| 09/04/2013 | CN103277107A Shield type roadway heading machine |
| 09/04/2013 | CN103277106A Highway tunnel three-step five-procedure excavation construction method |
| 09/04/2013 | CN103277105A Construction method for microseisms monitoring and stress relieving of strong rockburst tunnel |
| 09/04/2013 | CN101985883B Cavern protection method |
| 09/03/2013 | US8523288 Bit replacing device for excavating machine |
| 08/28/2013 | EP2631424A1 Support structure |
| 08/28/2013 | CN203161243U Tunnel structure located at mountain slope toe |
| 08/28/2013 | CN203161242U Auxiliary device for near-cliff tunnel construction |
| 08/28/2013 | CN203161241U Trench full-hydraulic injecting-drilling integral device for coal mine |
| 08/28/2013 | CN203161240U Cutting device of tube-pushing machine for cable tunnel |
| 08/28/2013 | CN203161239U Shield tunneling machine |
| 08/28/2013 | CN203161238U Grouting device for long-distance curved top pipe in cable tunnel |
| 08/28/2013 | CN103270246A Drain system of shield tunnel lining and method for constructing shield tunnel using same |
| 08/28/2013 | CN103266904A Anchor bolt support device and heading machine with same |
| 08/28/2013 | CN103266898A Shield tunnel portal sealing device and shield tunnel portal sealing method |
| 08/28/2013 | CN103266897A Slag-overturning bucket of tunnel boring machine |
| 08/28/2013 | CN103266896A Construction method for shield tunneling machine retaining structure taking position firstly and being constructed secondly and for shield shaft excavation |
| 08/28/2013 | CN102425430B Protection control method for resisting longitudinal deformation through shield tunnel structure in soft soil stratum |
| 08/28/2013 | CN102400690B Shield machine pushing turn-around method in construction subway tunnel by using shield method |
| 08/21/2013 | CN203145953U Tunnel portal earth-retaining device and pedestrian underpass construction system |
| 08/21/2013 | CN203145952U Working framework adapting to different heights and different gradient roadway work |
| 08/21/2013 | CN203145951U Cutter disk driving device of slurry balance tube push bench |
| 08/21/2013 | CN203145950U Support for monolithic horizontal movement station-crossing of shield tunneling machine |
| 08/21/2013 | CN203145949U Rock layer tunneling machine |
| 08/21/2013 | CN203145936U Split cutting head of cantilever longitudinal axis heading machine |
| 08/21/2013 | CN103256059A Natural lighting and ventilation integrated device for tunnel and manufacturing method thereof |
| 08/21/2013 | CN103256058A Numerical control full-automatic full-section rock shield tunneling machine |
| 08/21/2013 | CN103256057A Replacing device and method for disc cutters of tool head |
| 08/21/2013 | CN103256056A Model shield tunneling machine starting device capable of achieving self-balancing of counter-force |
| 08/21/2013 | CN103256055A Bearing type rotary table for bottom cleaning machine |
| 08/21/2013 | CN103256054A Tunneling machine trailer traveling wheel mechanism adapted to curve rail |
| 08/21/2013 | CN103256053A Excavation and construction method of underground cavity ball coronary dome |
| 08/21/2013 | CN103256052A Construction method for integral straight middle wall type double-arch tunnel |
| 08/21/2013 | CN103255991A Slurry door for slurry shield tunneling machine and filling system of same |
| 08/21/2013 | CN102322272B Hard rock tunnel tunneling method |
| 08/21/2013 | CN102155235B Method for constructing large through tower in mountain rock mass and section superposing method thereof |
| 08/20/2013 | CA2553002C Automated drill string position survey |
| 08/14/2013 | CN203130093U 80kmh tunnel widening limitation structure form |
| 08/14/2013 | CN203130092U Large-span unsymmetrical double-arch three-way tunnel in shallow-buried and bias-pressed section of high-speed railway |
| 08/14/2013 | CN203130091U Side wall and base plate structure of railway tunnel |
| 08/14/2013 | CN203130090U Railway tunnel groove structure |
| 08/14/2013 | CN203130089U Skip loading chamber |
| 08/14/2013 | CN203130088U Telescopic mechanism for master drive of full-face tunnel boring machine |
| 08/14/2013 | CN203130087U Cutter head driving device for tunnel engineering machinery |
| 08/14/2013 | CN203130086U Excavating structure without pilot tunnel of double-linked-arch tunnel |
| 08/14/2013 | CN103244169A Water spray fire-proof rolling shutter device fire extinguishing system special for tunnels |
| 08/14/2013 | CN103244143A Underground engineering tunneling construction method and underground station |
| 08/14/2013 | CN103244140A Method for arranging drilling chamber in backfill mining |
| 08/14/2013 | CN103244139A Rectangular-section pipe jacking tunneling machine |