| 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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| 03/13/2013 | CN102966359A Working face ventilation oxidization zone roof control method |
| 03/13/2013 | CN102966358A Construction method for shield-cut reinforced concrete pile under main line of operational railway |
| 03/13/2013 | CN102966357A Earth accumulation preventing device and earth accumulation preventing method of rectangular tunnel boring machine head and rectangular tunnel boring machine |
| 03/13/2013 | CN102966356A Method for controlling upward flotation and deformation of liquefiable ground operating tunnel under action of earthquake |
| 03/13/2013 | CN102966122A Method for controlling deformation of bridge during construction of tunnel close to foundation of bridge |
| 03/13/2013 | CN102966016A Internal double-layer prefabricated traffic lane structure of shield tunnel |
| 03/13/2013 | CN102155229B Mining wall cleaner |
| 03/13/2013 | CN102146795B Explosive shield machine |
| 03/13/2013 | CN102134999B Formation simulation hydraulic multi-mode loading system for testing shield propulsion system |
| 03/13/2013 | CN102052079B Method for exchanging tool of shield machine for tunnel construction |
| 03/12/2013 | US8393828 Boring machine steering system with force multiplier |
| 03/12/2013 | CA2469247C A method and means for recovering hydrocarbons from oil sands by underground mining |
| 03/07/2013 | DE102011114830B3 Vorrichtung zum Überwachen des Drehzustandes einer Schneidrollenanordnung einer Schildvortriebsmaschine und Schneidrollenanordnung für eine Schildvortriebsmaschine Apparatus for monitoring the state of rotation of a rotary cutter arrangement of a shield tunneling machine and cutting roller assembly for a shield tunneling machine |
| 03/06/2013 | CN202769217U Roadway hanging ceiling set screw structure |
| 03/06/2013 | CN202769142U Multi-channel rotary joint |
| 03/06/2013 | CN202768009U Novel copy cutter |
| 03/06/2013 | CN202768008U Three-degree-of-freedom self-walking mini-type shield mechanism |
| 03/06/2013 | CN202768007U Variable frequency driving unit of cutterhead |
| 03/06/2013 | CN202768006U TBM stepping device for open cut lining section of inclined shaft |
| 03/06/2013 | CN202768005U Simulation system of shield tunneling machine soil cabin pressure maintaining system |
| 03/06/2013 | CN202768004U Drive unit of large torque screw machine |
| 03/06/2013 | CN202768003U Device for tunneling soft rock |
| 03/06/2013 | CN202768002U Large dip angle rail slope structure for assisting main tunnel construction |
| 03/06/2013 | CN102953735A Composite soil pressure balance shield with front support and back support |
| 03/06/2013 | CN102953734A Adjustable stepping special-shaped tunneling machine with earth and rock separation function |
| 03/06/2013 | CN102155237B Device for exchanging tail brush during shield tunneling, and construction method of device |
| 03/06/2013 | CN101798932B Application method of long drilling steel inserted in crossarm holes |
| 02/27/2013 | EP2561176A1 Device for sealing a rock wall |
| 02/27/2013 | CN202755919U Feeding device of tunnel perforating machine |
| 02/27/2013 | CN102943677A Manufacturing method for end shield of built-in grout block shield machine |
| 02/27/2013 | CN102943676A Concrete cutting advanced cutter for shield tunneling machine |
| 02/27/2013 | CN102278119B Construction method for muddy water pressurization shield of grid knife flywheel and construction equipment thereof |
| 02/27/2013 | CN101949292B Cutter head structure provided with plurality of layers of flexible spokes and capable of cutting non-round section tunnel |
| 02/27/2013 | CN101684731B Measuring method of tunnel shield posture |
| 02/21/2013 | US20130045055 Method for replacing a tunnel boring machine roller cutter, handling device and roller cutter suited to such a method |
| 02/20/2013 | CN202745880U Double-hole power tunnel |
| 02/20/2013 | CN202745879U Continuous-arch tunnel of five-layer middle wall |
| 02/20/2013 | CN202745878U Underground excavated power tunnel |
| 02/20/2013 | CN202745877U Underground excavated power tunnel |
| 02/20/2013 | CN202745876U Open cast-in-place power tunnel |
| 02/20/2013 | CN202745875U Raker trolley |
| 02/20/2013 | CN202745874U Stacked combined six-cutter structure for rectangular heading machine |
| 02/20/2013 | CN102937024A Digging and building method for water-proof gate chamber |
| 02/20/2013 | CN102268994B Water supply system of composite earth pressure balance shield machine |
| 02/20/2013 | CN102128032B Tramcar for storing and transferring rocks |
| 02/13/2013 | CN202731990U Coal mine whole-section rock drivage system |
| 02/13/2013 | CN202731933U Full-hydraulic self-propelled trestle trolley |
| 02/13/2013 | CN202731927U 隧道施工装置 Tunnel construction equipment |
| 02/13/2013 | CN202731926U Solar photovoltaic subway exit shed |
| 02/13/2013 | CN202731925U Jacking type pipeline heading machine |
| 02/13/2013 | CN202731924U Central rotary connector of slurry balance shield machine |
| 02/13/2013 | CN102926765A Cutting part anti-interference device and heading machine |
| 02/13/2013 | CN102926764A Multi-stage expansion digging full section automatic tunnel marching continuous tunneling device and method |
| 02/13/2013 | CN102926763A Air cushion type slurry shield gas pressure adjusting system |
| 02/13/2013 | CN102926762A Anti-explosion TBM (tunnel boring machine) |
| 02/13/2013 | CN102926761A Double-mode cutterhead suitable for long-distance and great-gradient inclined well tunnel construction |
| 02/13/2013 | CN102926760A Grouting device and application method thereof |
| 02/13/2013 | CN102926759A Long-distance tunneling construction method for big-diameter slurry shield underwater shallow earthing |
| 02/13/2013 | CN102926758A Roadway excavation construction method by using fully-mechanized excavation and blasting excavation combined benching method |
| 02/13/2013 | CN102926757A Construction method of two-sidestep and four-step excavation support of weak large-span tunnel of mountain ridge |
| 02/13/2013 | CN102926752A First transporter device for heading machine |
| 02/13/2013 | CN102925813A Wear-resisting and anti-cracking composite cutter ring |
| 02/13/2013 | CN102094652B Coal mine underground multifunctional stirring, loading and unloading device |
| 02/13/2013 | CN102022122B Support-type comprehensive tunneler |
| 02/13/2013 | CN101663464B Method of directing drilling pattern in curved tunnels, rock drilling rig, and software product |
| 02/11/2013 | DE202011051897U1 Schlauch zur Führung von Fluiden Hose for conducting fluids |
| 02/06/2013 | EP2554788A1 Metropolitan transport system and method |
| 02/06/2013 | CN202719365U Jacking pipe used for non-excavation construction |
| 02/06/2013 | CN202718628U Underground cavern horizontal tunneling peripheral hole frame |
| 02/06/2013 | CN102913253A Microtunnelling system and apparatus |
| 02/06/2013 | CN102913252A Self-feeding continual tunneling device and method for rock tunnel |
| 02/06/2013 | CN102913251A Replaceable mixing pile for shield tunneling machine |
| 02/06/2013 | CN102913250A Shield tunnel-entering construction method at stratum rich in water powder and soil powder sand |
| 02/06/2013 | CN102913249A Inclined shaft transverse-through positive hole single horn lifting construction method |
| 02/06/2013 | CN102226396B Non-explosive mining method of excavation, artificial group-column reconstruction, long-hole caving and subsequent filling |
| 02/06/2013 | CN102071947B Construction method for soft surrounding rock section of large-span tunnel portal |
| 02/06/2013 | CN101936168B Device for expanding adaptability of cutter head of earth pressure balancing (EPB) shield machine to soft ground |
| 01/31/2013 | DE102011107697B4 Vortriebs- und Gewinnungsmaschine Heading and extraction machine |
| 01/30/2013 | CN202708534U Automatic lubrication system and engineering machine |
| 01/30/2013 | CN202707073U Arch tunnel structure |
| 01/30/2013 | CN202707072U Brim mold plate of tunnel portal |
| 01/30/2013 | CN202707071U Unfolded type tunnel construction lining trolley |
| 01/30/2013 | CN202707070U Composite shield machine with earth pressure balance and slurry balance double modes |
| 01/30/2013 | CN202707069U Shield tunneling machine and thrust hydraulic system thereof |
| 01/30/2013 | CN202706933U Grouting drilling machine mounting device and open-type shield tunneling machine |
| 01/30/2013 | CN102900848A Shield tunneling machine under pressure warehouse entry air bag sealing device and method |
| 01/30/2013 | CN102900441A China tunnel construction method based on complete deformation control of surrounding rocks |
| 01/30/2013 | CN102898983A Shield adhesive and preparation method thereof |
| 01/30/2013 | CN102094653B Loading and conveying linkage device for heading machine |
| 01/29/2013 | CA2579530C Method and device for continuously informing the operator of a tunnelling machine on physical features of a ground to be tunnelled |
| 01/24/2013 | DE102011107918A1 Monolithic covering lid for subway in railway construction, has building auxiliary wall that is extended at underside over its width, and arranged more nearly at terminal end than supporting surface for counter bearing |
| 01/23/2013 | EP2547866A1 Drilling apparatus with shutter |
| 01/23/2013 | CN202690079U Shield construction grouting amount measuring device based on mass flow meter |
| 01/23/2013 | CN202690075U Tunnel layout structure used for obtaining deeply buried surrounding rock drive stress ratio |
| 01/23/2013 | CN202690074U Falling-rock preventing reinforced concrete open cut tunnel structure |
| 01/23/2013 | CN202690073U Water stopping structure of steel wire brush of shield tunnel portal |
| 01/23/2013 | CN202690072U Mining roadway structure capable of preventing corner gas on coal mining work face from accumulating |
| 01/23/2013 | CN202690071U Multifunctional tunnel working trolley |
| 01/23/2013 | CN202690070U Novel screw conveyor with interchangeable blades |
| 01/23/2013 | CN202690069U Electrical control system of shield tunneling machine with diameter of 2 meters |