| Patents for E21D 5 - Lining shafts; Linings therefor (494) |
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| 06/26/2013 | CN103174428A Method of implementing grouting and water plugging of shaft through chemical grout |
| 06/05/2013 | CN202970717U Auxiliary hanging scaffold for sheath wall |
| 06/05/2013 | CN103133005A Double-steel-plate locally-confined concrete shaft lining |
| 06/05/2013 | CN103133004A Technological process of ground prefabrication and installation of inner shaft wall of freezing shaft |
| 05/30/2013 | WO2013077595A1 Seabed drilling and vertical shaft construction method |
| 05/16/2013 | DE202013001799U1 Korrosionsbeständige Schachtauskleidung mit GFK Segmenten Corrosion-resistant shaft lining with GRP segments |
| 05/08/2013 | CN202926333U Hanging system of whole-circle integral upside down hanging formwork |
| 05/08/2013 | CN202926332U Whole-circle integral upside down hanging formwork |
| 05/08/2013 | CN202926331U Boring method shaft sinking well wall |
| 05/01/2013 | CN103075158A Steel plate and steel reinforced concrete well wall |
| 04/24/2013 | CN102305076B Hydraulic step type vertical shaft template supporting device |
| 04/17/2013 | CN202882929U Vertical shaft mortar distributing system |
| 04/17/2013 | CN103046932A Pre-grouting and water plugging method for permeable layer in vertical shaft |
| 04/17/2013 | CN102127984B Underground garage |
| 04/03/2013 | CN103016011A Method for blocking water by grouting wall of auxiliary vertical shaft of sandstones with medium water permeability |
| 04/03/2013 | CN102287191B Large-diameter engineering well wall back filling cementation quick slurry stirring construction method |
| 04/03/2013 | CN101858218B Shaft sinking process for expansion well completion of mine vertical shaft with boring method |
| 03/27/2013 | CN202832551U Vertical shaft pitshaft and shaft bottom water spraying prevention device |
| 03/27/2013 | CN202831344U Building block for wall body of arc-shaped well wall |
| 03/20/2013 | CN202810856U Sinking platform rubber wheel limiting device |
| 03/06/2013 | CN202768001U Arc bridge type integral supporting structure for inclined well bell mouth construction |
| 03/06/2013 | CN202768000U Large aperture manual hole digging pile retaining wall steel bar cover |
| 03/06/2013 | CN102230380B Wedge self-locking type stepping hanging scaffold |
| 02/28/2013 | US20130051918 Method of reinforcing irregular structures |
| 02/27/2013 | CN202755977U Stable plate fixing device for vertical shaft digging and building construction |
| 02/20/2013 | CN101956560B Stop-grouting plug safety separation device for subvertical ground pre-grouting engineering |
| 02/13/2013 | CN202731923U Material receiving platform for subway shaft |
| 02/13/2013 | CN202731922U Supporting device of main ore pass well |
| 02/13/2013 | CN202731921U Abrasion-resistant buffer device for shaft concrete chute |
| 02/13/2013 | CN102926767A Reinforcement treatment method of wide-angle inclined tunnel internally-sleeved steel liner location joint |
| 02/13/2013 | CN102923557A Seat hook type hoist bucket |
| 02/06/2013 | CN102913248A Whole-circle whole invertedly-hanging template and mold-erecting and demolding methods of template |
| 02/06/2013 | CN102913247A Sinking well wall using drilling method and manufacturing method thereof |
| 01/30/2013 | CN202707067U Vertical shaft wall fully-hydraulic self-movable template device |
| 01/30/2013 | CN202707066U Manual hole digging pile wall-protecting integral template |
| 01/17/2013 | US20130017022 Underground mining rib support system and method |
| 01/09/2013 | CN202659236U Circular vertical shaft sliding template convenient for detaching |
| 01/02/2013 | CN202644495U Porous vertical shaft slide mold construction device in complicated structure |
| 12/13/2012 | US20120314540 Hollow rebar for crosshole sonic logging access tubes and longitudinal concrete reinforcing in drilled shafts |
| 12/12/2012 | EP2531697A2 Mine shaft liner plate system and method |
| 12/05/2012 | CN202577952U Hydraulic automatic lifting template of vertical shaft |
| 11/21/2012 | EP2524110A1 Improved ladderway system for underground raises |
| 11/21/2012 | CN202544848U Auxiliary device for dismounting integrated climbing form in vertical shaft |
| 11/14/2012 | CN102777186A Full-hydraulic self-moving type template device of vertical shaft wall |
| 11/07/2012 | CN202520316U Suspended safety isolator used in construction of tunnel shaft |
| 11/07/2012 | CN202520315U Tunnel ventilation shaft wall lining-supporting system |
| 11/07/2012 | CN102767373A Circular shaft sliding formwork convenient to demount |
| 11/07/2012 | CN102767183A Vertical gravitational flow conveying device for concrete |
| 10/17/2012 | CN102733811A Impermeable refilling and sealing method for vertical well of underground water-sealed cavern oil storage |
| 10/17/2012 | CN102733810A Impermeable sealing method for vertical well of underground water-sealed cavern oil storage |
| 10/10/2012 | CN202483579U High-strength reducing template for shaft construction of coal mile freezing vertical shaft |
| 10/10/2012 | CN102720502A Pneumatic assembly and disassembly device for shaft construction forms in assembly |
| 09/05/2012 | CN202417505U Connecting device for grid concrete at joints of converting vertical shafts into roadways |
| 09/05/2012 | CN102108869B Grout stop pad construction method for kilometer vertical shaft grouting for water control |
| 09/05/2012 | CN102011592B Circumferentially compressible composite well wall and construction method thereof |
| 08/22/2012 | CN102644465A Backfill construction method for vertical shaft cave |
| 08/15/2012 | CN202381095U Novel concrete spraying machine used underground |
| 08/15/2012 | CN102635359A Energy-saving rapid construction method for ventilating shafts of tunnels |
| 08/15/2012 | CN101906972B Method for synchronously constructing second shaft wall lining and intermediate baffle of vertical shaft |
| 08/08/2012 | CN202370526U Simple steel beam fixing device |
| 08/08/2012 | CN202370525U Post grouting construction structure of shaft wall of weathering bed rock section of return air vertical shaft |
| 08/08/2012 | CN202370524U Water control construction structure for working face of shaft body of air return vertical shaft |
| 08/08/2012 | CN202370523U Large-fall concrete pouring buffer |
| 08/08/2012 | CN102628363A Well wall supporting method for hydraulic stepped sinking platform |
| 08/01/2012 | CN102619521A Construction method for vertical shaft bedrock section wall structure |
| 08/01/2012 | CN102619520A Method for reducing wall stress of vertical shaft |
| 08/01/2012 | CN102619254A Thermal insulation water supply well through geothermal method and construction method thereof |
| 07/18/2012 | CN102587918A High-strength reducing template for construction of coal mine freezing vertical shaft |
| 07/11/2012 | CN202325543U 预埋灌浆装置 Filling embedded devices |
| 07/11/2012 | CN202325526U 立井施工卸装混凝土装置 Shaft Concrete Construction uninstall device |
| 07/11/2012 | CN202325525U 大口径竖井模板锚固支撑用预埋套筒 Large diameter shaft template with embedded support sleeve anchor |
| 07/11/2012 | CN102562073A Telescopic boom of walking hanging scaffold |
| 07/11/2012 | CN102562072A Grille concrete connecting device on vertical well-to-gateway node |
| 07/04/2012 | CN202300407U 竖井井壁施工作业升降平台 Construction work platform lift shaft wall |
| 07/04/2012 | CN202300406U 一种新型注浆装置 A new grouting equipment |
| 07/04/2012 | CN102536248A Replacement method for filling retarded cement paste in annular space of freezing pipe |
| 07/04/2012 | CN102536247A Construction method of still-water cement grout pad |
| 07/04/2012 | CN101691832B Vertical shaft drilling-grouting parallel operation technology |
| 06/28/2012 | WO2012083400A1 Process of in situ nucleation and growth of calcium silicate-based nanocrystals in cement materials, calcium silicate-based nanocrystals and uses of said calcium silicate-based nanocrystals |
| 06/28/2012 | CA2821986A1 Nucleation process and in situ growth of nanometric calcium silicate-based crystals in cement materials, calcium silicate-based nanometric crystals, use of crystals and use of glycerin |
| 06/20/2012 | CN102505944A Water sealing method for replacing mud in freezing holes with slow setting cement grout |
| 06/13/2012 | CN102493811A Concrete loading and unloading device for vertical shaft construction |
| 06/13/2012 | CN102493810A Grouting construction process of pipeline inclined shaft engineering |
| 05/30/2012 | CN202250101U Turret-type hydraulic drive wet-spraying machine |
| 05/30/2012 | CN202250087U Semi-automatic template of small-section square concrete shaft |
| 05/23/2012 | CN101705823B Delayed coagulation well cementation method of high-pressure gas underground gas storage wells |
| 05/16/2012 | CN202220609U Shaft sinking hanging scaffold |
| 04/25/2012 | CN102425421A Novel water control method suitable for mine shafts |
| 04/18/2012 | CN102080446B 一种竖井施工升降平台 One kind of shaft construction lifting platform |
| 04/12/2012 | WO2011097201A3 Mine shaft liner plate system and method |
| 04/04/2012 | CN202181898U Special hanging scaffold for sheathing and building inner-layer well wall in vertical shaft sinking construction |
| 03/28/2012 | CN101956557B Concrete transport system |
| 03/22/2012 | WO2012035481A1 Integral hoisting cable arrangement |
| 03/15/2012 | WO2012032491A1 Remotely controllable shaft maintenance device, system and method |
| 03/14/2012 | CN202165086U 带有环槽刃脚的金属液压整体模板 Hydraulic metal template with overall foot ring groove edge |
| 03/14/2012 | CN102373928A Building method of mineshaft for exploring natural gas hydrate |
| 02/01/2012 | CN202132044U 楔块自锁式迈步吊盘 Self-locking wedge swing hanging plate |
| 01/18/2012 | CN102322265A Mechanized excavating and constructing method of surface soil freezing section of vertical shaft |
| 01/11/2012 | CN202108514U Six-layer construction hanging scaffold for installing vertical shaft equipment |
| 01/04/2012 | CN102305076A Hydraulic step type vertical shaft template supporting device |