| 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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| 03/30/2011 | CN201778821U Super-wear-resistant shield cutter |
| 03/30/2011 | CN101995861A Remote monitoring method and system for development machine |
| 03/30/2011 | CN101994513A Method for constructing tunnel by finishing full section curtain grouting from upper-half section |
| 03/24/2011 | WO2010134731A9 Top-down construction method using a branch-type steel frame with channels for the continuous construction of an underground retaining wall |
| 03/23/2011 | CN201771514U Concealed tunneling structure with pile foundation |
| 03/23/2011 | CN201771513U Cutter ring of composite hob cutter |
| 03/23/2011 | CN201771512U Hydraulic control system of active articulated cylinder in shield machine |
| 03/23/2011 | CN201771495U 轮廓截割装置 Contour cutting device |
| 03/23/2011 | CN1924293B Rotary replaceable earth pressure cell for shield machine |
| 03/23/2011 | CN101555798B Reverse puncher and method for using the puncher for implementing PBA side pile construction |
| 03/16/2011 | EP2295705A2 Abrasion detecting apparatus detecting abrasion of component of cutter head and tunnel boring machine including abrasion detecting apparatus |
| 03/16/2011 | CN201763354U Deviated well ballast-unloading platform |
| 03/16/2011 | CN201763353U Hob cutter ring of shield machine |
| 03/16/2011 | CN201763352U Alloy block for shield machine hob ring |
| 03/16/2011 | CN201763351U Cable extension alarm device for shield machine |
| 03/16/2011 | CN201763350U Pulling jack device for underground concealed box culvert or pipe construction |
| 03/16/2011 | CN201763349U Two-liquid grouting device |
| 03/16/2011 | CN201763348U Slip casting tube |
| 03/16/2011 | CN201763339U Fixing apparatus for guide wheels of pickers |
| 03/16/2011 | CN201762651U Tunnel inverted arch trestle bridge |
| 03/16/2011 | CN1936270B Multilayer enclosing-rock cement-grouting consolidation ring tunnel bearing structure and its construction method |
| 03/16/2011 | CN101985883A Cavern protection method |
| 03/16/2011 | CN101775796B Unplugging-free freezer |
| 03/16/2011 | CN101550829B Shield whole self-propelled station-crossing construction method |
| 03/09/2011 | CN201756967U Single track railway shield tunnel longitudinal rigidity reinforcing structure |
| 03/09/2011 | CN201756966U Three-hole double-line railway underwater tunnel |
| 03/09/2011 | CN201756965U Three-hole double-line railway underwater tunnel |
| 03/09/2011 | CN201756964U Shield machine hob ring |
| 03/02/2011 | CN201753605U Protection knife for scraper seat of subway tunnel shield machine |
| 03/02/2011 | CN201753604U Wear-resisting ring of cutter head of subway tunnel shield machine |
| 03/02/2011 | CN101982646A Intelligent travelling escape trunk for mine |
| 02/23/2011 | CN201751534U Hobbing cutter of hard rock tunneller |
| 02/23/2011 | CN201751533U Cutter ring of positive hobbing cutter used when hard rock tunneller passes though broken granite layer |
| 02/23/2011 | CN101981273A A method and an apparatus for mining a material in an underground environment |
| 02/17/2011 | DE112006003436B4 Vortriebs- und Gewinnungsmaschine Heading and extraction machine |
| 02/16/2011 | EP2284360A1 Thrust method |
| 02/16/2011 | CN201747382U Operating platform of excavating equipment |
| 02/16/2011 | CN201747381U Compound TBM novel auxiliary steering device |
| 02/16/2011 | CN201747380U Shield and TBM cutter head new wedge-shaped installation cutter rest |
| 02/16/2011 | CN201747379U Shield independent watering system |
| 02/16/2011 | CN101975084A Spiral conveyer for earth pressure balance push bench |
| 02/16/2011 | CN101975069A Automatic telescopic crushing device for development machine |
| 02/16/2011 | CN101975068A Construction method for tunnelling small-radius curve segment of tunnel through shield method |
| 02/16/2011 | CN101975067A Light-section mud shield powder fine sand layer receiving method |
| 02/16/2011 | CN101975066A Coal-rock drift quick tunnelling method |
| 02/16/2011 | CN101975065A Method for measuring mining stress of coal mine tunnel |
| 02/16/2011 | CN101974909A Method for directly building tailing ponds without filling positions above goaf |
| 02/16/2011 | CN101270666B Tunnel influence geological condition section-expanding horizontal drilling estimation and prediction method |
| 02/09/2011 | EP2282007A1 Supporting arrangement |
| 02/09/2011 | CN201738932U Support structure of loess tunnel with extra-large cross-section |
| 02/09/2011 | CN201738931U Shield remote monitoring system |
| 02/09/2011 | CN201738930U Shield machine control system |
| 02/09/2011 | CN201738929U Cutter arm crushing type tube push bench |
| 02/09/2011 | CN201738928U Oil tank anti-damaging device for slurry shield crasher |
| 02/09/2011 | CN201738369U Novel hydraulic device of cantilever-type tunneling machine |
| 02/09/2011 | CN201738363U Novel machine-loaded automatic oil supplementing device of digging machine |
| 02/09/2011 | CN201738254U Buffering structure for buffering micro-pressure wave at high-speed railway tunnel portal |
| 02/09/2011 | CN1973113B Method for detecting and controlling thrust and eccentricity of pipe elements in the ground |
| 02/09/2011 | CN101970797A An apparatus for forming an underground tunnel |
| 02/09/2011 | CN101967981A Copy cutting system of tunneling machine |
| 02/09/2011 | CN101967980A Cutterhead closed type hydraulic drive system adopting revolving speed-variable and displacement-variable compound control |
| 02/09/2011 | CN101967979A Profiling rectangular cutting device of pipe jacking machine |
| 02/09/2011 | CN101967978A Construction method for improving shield soil in composite sand gravel stratum |
| 02/09/2011 | CN101967977A Construction method for controlling rock pillar type rock burst in process of double-head tunneling deep-buried tunnel transfixion |
| 02/09/2011 | CN101566063B Method of reinforcing soil body for inlet and outlet cave mouths of tunnel shield |
| 02/02/2011 | CN201731882U Central line determinator |
| 02/02/2011 | CN201730624U Construction work vehicle for subway region tunnel |
| 02/02/2011 | CN201730623U Shield forward detection radar protecting structure |
| 02/02/2011 | CN201730547U Multifunctional rapid drilling machine |
| 02/02/2011 | CN101963507A Shield segment center detection system and shield posture determination method |
| 02/02/2011 | CN101963061A Construction method for underground box culvert of existing railway line |
| 02/02/2011 | CN101963060A Tunnel construction method based on steel tube arch-rib supporting structure |
| 01/27/2011 | WO2010134731A3 Top-down construction method using a branch-type steel frame with channels for the continuous construction of an underground retaining wall |
| 01/27/2011 | US20110020066 Reinforced Soil Arch |
| 01/26/2011 | CN201723229U Chain type mud cleaning machine special for subway tunnel |
| 01/26/2011 | CN201723228U Supporting device for wholly lifting shield machine in turnabout period |
| 01/26/2011 | CN201723227U Full-automatic multistage planetary child-mother drilling bit tunnel shield machine system |
| 01/26/2011 | CN201722263U Slurry shield mud preparing device |
| 01/26/2011 | CN101781989B High-gas mine crossheading echelon short-drainage rapid tunneling process |
| 01/26/2011 | CN101598024B Shield cutter-head mechanism of shield tunnel boring machine |
| 01/19/2011 | CN201714394U Cutter head of slurry balance pipe-jacking development machine |
| 01/19/2011 | CN201714393U Multifunctional full-section tunnel excavator |
| 01/19/2011 | CN201714392U Rock drilling device |
| 01/19/2011 | CN201714391U Excavating equipment body |
| 01/19/2011 | CN201714390U Hard rock hydraulic crushing type boring machine |
| 01/19/2011 | CN201714389U Rock breaking device |
| 01/19/2011 | CN201714388U Rock drill bracket special for digging a tunnel |
| 01/19/2011 | CN101949292A Cutter head structure provided with plurality of layers of flexible spokes and capable of cutting non-round section tunnel |
| 01/13/2011 | US20110008107 Tail seals |
| 01/13/2011 | US20110006586 Longwall mining roof supports |
| 01/12/2011 | CN201707040U Hydraulic wear detection tool for shield machine |
| 01/12/2011 | CN201705363U Roadway intersection transportation steering platform |
| 01/12/2011 | CN201705362U Shield center cutting device separated from shield cutter head body |
| 01/12/2011 | CN201705361U Replaceable pilot cutter mounting device for shield machine |
| 01/12/2011 | CN201705360U Shield machine |
| 01/12/2011 | CN201705359U Tail shield sealed water-proof structure of shield machine |
| 01/12/2011 | CN201705358U Shield machine and detector for thrusting speed and stroke of cylinder |
| 01/12/2011 | CN101946061A Heading work machine having drill head made of disk tools |
| 01/12/2011 | CN101943003A Shield construction system based on ground penetrating radar |
| 01/12/2011 | CN101943002A Excavator for building tunnel type passage |