Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21D - Shafts; Tunnels; Galleries; Large underground chambers › E21D 9 - Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
Patents for E21D 9 - Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries (7,097)
08/2012
08/29/2012CN101550830B Energy-efficient shield cutterhead closed loop hydraulic control system adopting ganged accumulators
08/23/2012US20120212034 Cutter assembly for tunnel boring machine with pressure compensation
08/23/2012DE202011050146U1 Vorrichtung für die fräsende Bearbeitung von Gestein, Mineralien oder anderen Materialien Device for milling treatment of rock, minerals or other materials
08/22/2012CN202391432U Rock drilling and slagging-off dual-purpose trolley for roadway
08/22/2012CN202391431U Hard rock composite type TBM (tunnel boring machine) suitable for composite stratum
08/22/2012CN102644468A Damping device used for crossover parts of underground short-distance crossing structures
08/22/2012CN102644467A Tunnel connecting passage construction method for directly cutting segment rings through pipe jacking machine
08/22/2012CN102644466A Joist arching method for constructing ultra-shallow buried large-span underground excavated subway station in rocky stratum
08/22/2012CN102003186B Double-roadway tunneling construction process
08/22/2012CN101943002B Excavator for building tunnel type passage
08/22/2012CN101899982B Lane (tunnel) surrounding rock forming and unloading integrated device and simulation test method
08/22/2012CN101845954B Self-carrying barrier-breaking and foundation-reinforcing device of shield machine
08/22/2012CN101666232B Construction method of six-zone digging of super cross section tunnel
08/16/2012WO2012031094A3 Method and apparatus for making an expanded base pier
08/15/2012CN202381103U Semiarc tunnel
08/15/2012CN202381102U Simple drill and blast construction trolley
08/15/2012CN202381101U Screw conveyer gate safety device
08/15/2012CN202381100U Drill loader operating device
08/15/2012CN202381099U Reinforcing type hobbing cutter with air pressure balance function
08/15/2012CN202381098U Shield machine modified structure for strengthening construction of tunnel face in shield machine cabin
08/15/2012CN202381097U High-pressure water spraying and spouting device for excavation face of grid tunnel shield
08/15/2012CN202381096U Forced deviation-correcting device of grid shield
08/15/2012CN102639813A Bit-replacing device for excavator
08/15/2012CN102635367A Tunnel surrounding rock cutting mechanism
08/15/2012CN102635366A Self-positioning disc-type hob device
08/15/2012CN102635365A Construction method for holing of shield machine
08/15/2012CN102635364A Method for originating shield large-angle curve
08/15/2012CN102635363A Shield machine, and additive injection port and additive injection device for shield machine
08/15/2012CN102635362A Secondary reception constructing method for shield arrival
08/15/2012CN102635361A Construction method for holing and welling of shield machine
08/15/2012CN102635360A Freezing pipe pulling method in reinforcing process of freezing-method shield end head
08/15/2012CN101824988B Shield machine
08/15/2012CN101363319B Circle fluid cushion type side-turning prevention device for rectangular tunnel boring machine
08/09/2012US20120200139 Underground mining
08/08/2012CN202370537U Electric power tunnel
08/08/2012CN202370536U Bridge-tunnel connected tunnel structure of high speed railway
08/08/2012CN202370535U Split-type narrow center hob
08/08/2012CN202370534U Energy-saving shield hydraulic propelling system with energy storage device mounted at propelling oil inlet side
08/08/2012CN202370533U Expanding device for pipe-jacking head
08/08/2012CN202370532U High-intensity disc-shaped hobbing cutter
08/08/2012CN202370531U Extra-large planetary master-sub drill bit for tunnel shield machine
08/08/2012CN202370530U Semi-open coreless shield cutter head
08/08/2012CN202370529U Tunnel face reinforced structure inside cabin of shield machine
08/08/2012CN202370528U Machine head of mud water balance type top pipe digging machine
08/08/2012CN202369935U Adjustable flexible connecting device for box culverts and tool pipe roofs
08/08/2012CN102628365A Rectangular pipe-jacking main machine
08/08/2012CN102628364A Remote control type tunneling machine for tunnel mine
08/08/2012CN101864965B Pressure flow rate composite synchronization control energy-saving type shield propelling system
08/08/2012CN101858219B Method for determining reasonable empty-support distance of tunneling head
08/01/2012CN202360105U Gap-exciting pressure-relief soft rock roadway supporting structure
08/01/2012CN202360104U Open type hydraulic system driving screw conveyer on miniature shield machine
08/01/2012CN202360103U Large cutterhead for earth pressure balanced underground pipeline excavator
08/01/2012CN202360099U Rolling material raking device
08/01/2012CN102619532A Tunnel profile display method
08/01/2012CN102619531A Multi-step sequence construction deformation control method for shallow-buried tunnel with big cross section
08/01/2012CN102619530A Torque-balanced jacking pipe
08/01/2012CN102619529A Spiral pull and propulsion combined self-propelled tunneling device
08/01/2012CN102619528A Soil screw traction self-traveling type tunnel piercing device and piercing method
08/01/2012CN102619527A Bolted shield launching bracket
08/01/2012CN102619526A Combined sliding plate and rolling frame shield tunneling machine and construction method thereof
08/01/2012CN102619525A Method for dredging blocked mud door of slurry shield by aid of backwash and system
08/01/2012CN102619524A Construction method for opening off small-section underground chamber of coal mine rock roadway into large-section underground chamber
08/01/2012CN102619523A Unequal-height tank whole jacking construction method
08/01/2012CN102619522A Construction method for subway contact passage
07/2012
07/31/2012US8231306 Advancement of pipe elements in the ground
07/26/2012WO2012098531A1 Tunnelling apparatus and method therefor
07/25/2012CN202348289U Cutterhead structure of hard rock shield machine
07/25/2012CN202348288U End cap fixed three-blade hob with abrasion detection function
07/25/2012CN202348287U Installation structure of shield machine scraper
07/25/2012CN202348286U Inclined shield tail brush of shielding machine
07/25/2012CN202348285U Spindle driving device structure of tunneling device
07/25/2012CN202348284U Four-wheel hydraulic drive roadway milling and planing machine
07/25/2012CN102606173A Construction method for treating tunnel deformation segment and accelerating tunneling
07/25/2012CN102606166A Downhole self-moving platform
07/25/2012CN102606165A Automatic deviation rectifying system for shield machine and operating method of automatic deviation rectifying system
07/25/2012CN102606164A Foam injection system for shield machine and operating method of foam injection system
07/25/2012CN102606163A Shield tunnel construction ground settlement control method
07/25/2012CN102606162A Quick construction method for weak surrounding rock shallowly-buried easily-collapsed area of tunnel
07/25/2012CN101975068B Construction method for tunnelling small-radius curve segment of tunnel through shield method
07/25/2012CN101915099B Bidirectional U-shaped coal-mining method of thick coal bed by gateway layout along stability layer
07/24/2012CA2727949A1 Tunnel boring machine with a centre drilling device
07/19/2012WO2012017314A3 Closed trench tunnels
07/18/2012CN102588609A Emergency tail seal device for shield machine and mounting structure thereof
07/18/2012CN102587960A Arrangement method of high gas coal seam extraction working face roadway
07/18/2012CN102587931A Shielding belt conveyor
07/18/2012CN102587930A Shield declination originating technology
07/18/2012CN102587929A Earth pressure balance shield machine without cutter disk
07/18/2012CN102587928A Complete equipment for construction of annular cutting arching pre-support tunnel
07/18/2012CN102587927A Multi-edge flange-type hob
07/18/2012CN102587926A Bevel-edge cutting knife of shield machine
07/18/2012CN102587925A Shielding earth pressure gage replacing device
07/18/2012CN102587924A Construction method for shallow-buried high-water-content clayed soil tunnel
07/18/2012CN102587923A Center shaft type precutting trough equipment
07/18/2012CN102587922A Oblique-crossing inclined shaft upper arc guide top brushing construction method for soft crushed rock layer
07/18/2012CN102587921A Rectangular tunneling machine adopting swing cutting method
07/18/2012CN102587920A Tunnel entrance bias section construction method
07/18/2012CN102587919A Multi-spiral self-driven walking type tunneling device and method
07/18/2012CN102587908A Lateral narrow-array type novel slag removing machine in conveying trough mechanism
07/18/2012CN101936167B Construction method for crossing bridge pile foundation by combining bridge underpinning with shield construction
07/11/2012CN202327089U 盾构机紧急密封装置 TBM emergency sealing device
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