Patents
Patents for E21D 11 - Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling (7,167)
08/1993
08/24/1993US5238329 Mine roof support system
08/19/1993DE4221656A1 Pliable backfill for passage construction in mining - comprises strong concrete and deformable pipe sections inserted in each other
08/11/1993CN2139991Y Automatic spraying forming device for mine tunnel concrete support
08/05/1993WO1993014917A1 Process and device for making the corners of sealing frames
08/04/1993EP0553723A1 Sealing joint for construction elements in contact, especially for concrete elements
08/03/1993US5232302 Fixing means for connecting components
07/1993
07/29/1993DE4301981A1 Moulding tool for injecting corners into sealing frames - comprises inner and outer tool, injection gate in outer tool and inserts acting as end plugs for profiles located in inner tool
07/29/1993DE4104798A1 Steel V=shaped clamping elements and arrangement - has curved steel body with end of each arm bulged having shoulder with concave, and convex parts
07/22/1993WO1993014297A1 Process for preventing a profiled jointing strip from moving in relation to a tunnel structural component and profiled jointing strip produced thereby
07/08/1993DE4200007A1 Tunnel sealing material - comprises layered textile material with pliability and a structure to take rock movement without damage
07/07/1993EP0549595A1 Method of manufacturing a hollow self-supporting concrete structure, means for performing said method and structures obtained by means of the method.
07/06/1993US5224654 Apparatus for pneumatically discharging liquified building material containing a hardener
06/1993
06/29/1993US5222837 Mine roof channel clamp
06/24/1993DE4140722A1 Permanent formwork for structural fill lining or insulation in mining - consists of flexible water permeable crack resistant plastic fibre fleece one half millimetre thick and with surface weight of one hundred grams per square metre
06/17/1993DE4239338A1 Layered capacitor element winder with pivotable pressure roller - takes up two superimposed layers of raw material on plate rotating in contact with sliding roller
06/10/1993WO1993011341A1 Grid composite for longwall shield recovery in underground coal and trona mines
06/10/1993CA2125150A1 Grid composite for longwall shield recovery in underground coal and trona mines
05/1993
05/19/1993EP0541681A1 Frost-protection lining for traffic tunnels in cold climates
05/05/1993CN2131978Y Lining-building platform car for tunnel construction
05/04/1993US5207038 Reinforced earth structures and method of construction thereof
04/1993
04/29/1993WO1993008370A1 Shield tail seal
04/28/1993EP0538718A1 Improvements in a tunnel lining method and apparatus suitable for the purpose
04/22/1993DE4234264A1 Schildschwanzdichtung Shield tail seal
04/07/1993EP0535041A1 Method for mine support and composition
04/07/1993CN2129341Y Hydraulic-grab additive machine
04/06/1993US5199825 Grid composite for longwall shield recovery in underground coal and trona mines
04/01/1993DE4132528A1 Plastics fixing device for attaching sealing foil to tunnel walls - comprises two concentric discs with concentric recessed metal plate which is nailed to the tunnel walls
04/01/1993DE4131370A1 Supports for mining roadway - comprise arch sections formed into polygon and secured by bolted end plates and lockable hinges
04/01/1993DE4130450C1 Support system in transition region between roadway and face - has longitudinal fittings inserted into trough sections of support system
03/1993
03/31/1993EP0534277A1 Sealing strip for tunnel lining segments
03/17/1993EP0426709B1 A process and device for distributing pumpable viscous materials among several lines
03/16/1993US5193960 Washer with elastic water-swellable rubber
03/16/1993US5193940 Mine roof support system
03/11/1993DE4125083A1 Supporting tunnel excavation regardless of tunnel profile - involves hollow plastics or metal tubbing joined by tongued=and=groove joints and subsequently filled with mortar
03/11/1993DE3844776C2 Roof support for mining gallery
03/04/1993DE4130161C1 Roadway arch support reinforcement - uses endless reinforcing cables, extending in roadway longitudinal direction, distributed over arch periphery
03/04/1993DE4129171A1 Flexible segmental tubular supports for tunnel construction - are connected by modular joints to form polygon frame filled subsequently with building material
02/1993
02/24/1993CN1019937C Double-locating type cable band and its mfg. method
02/18/1993DE4226214A1 Sealing of concrete lined tunnel excavation - is achieved by double layer of plastics foil fused onto fixings and distance pieces enclosing sealed void
02/11/1993DE4225883A1 Schutzhaut, insbesondere fuer gewoelbebauwerke Protective skin, especially for gewoelbebauwerke
02/04/1993DE4136060C1 Folding tunnel tube for mine - has two halves which are joined by hinge running along axis of tube
02/02/1993US5183356 Method and device for distributing pumpable thick matter into several delivery pipes
01/1993
01/27/1993EP0524919A1 Lining of tunnels or galleries
01/21/1993WO1993001237A1 Flexible formo-phenolic resins and uses thereof for obtaining flexible foams
01/20/1993WO1993002264A1 Method of manufacturing a hollow self-supporting concrete structure, means for performing said method and structures obtained by means of the method
01/20/1993EP0523363A1 Method for lining tunnels or the like
01/19/1993US5180270 Water flow patch
01/19/1993US5180253 Arrangement of prestressing tendons in a pressure tunnel
01/13/1993EP0522917A1 Soft phenolformaldehyde resins and their use for soft foams
01/13/1993EP0522912A1 Profiled sealing strip for tunnel lining segments made from elastomer
01/12/1993CA1312472C Expandable retaining frame and placing process and apparatus
01/05/1993US5176473 Mine roof truss and components
12/1992
12/23/1992EP0519155A2 Process of manufacturing of sprayable concrete and morton by using an additive
12/23/1992CN2125703U Connecting plate elastic cleaning unit
12/22/1992US5172919 Appliance for preventing water from leaking through joint
12/15/1992US5171105 Process and device for lining tunnels and ducts having circular and non-circular cross-sections, especially for canal and tunnel construction
12/09/1992EP0413693B1 Reinforced concrete construction for road tunnels
12/09/1992CN1066907A Underground pipe making machine and its working method
12/03/1992DE4117927A1 Loosening rusty collar nuts on sliding roadway arches in mine - using clamp to hold nut while explosive charge drives wedge into nut
12/02/1992EP0515549A1 Lining of rock-faces such as tunnels and the like, and a method to provide the lining
12/01/1992US5167474 Form for making a permanent concrete mine stopping
12/01/1992US5167468 System for the robotic fabrication of pipelines and tunnels along unlimited three-dimensional curvilinear paths
11/1992
11/26/1992WO1992020901A1 Injection means
11/26/1992WO1992020879A1 Process and element for sealing a joint in a building element
11/19/1992EP0513083A1 Automatically advancing supporting and sliding form for introducing an in-situ concrete lining.
11/19/1992DE4116267A1 Verfahren und mittel zum abdichten einer fuge in einem baukoerper Method and medium for sealing a fuge in a building
11/18/1992CA2051301A1 Cap shoe
10/1992
10/28/1992EP0510501A1 Fastening anchor
10/28/1992EP0510089A1 Method for lining the inside of an accessible pipe and tunnel ring for implementing same.
10/28/1992CN1065699A Shape selfchanging steel die system
10/21/1992CN1018750B Movable framework of tunnel wall covering apparatus
10/14/1992EP0508719A1 Sealing composition
10/13/1992US5154936 Apparatus for everting a tube
10/06/1992CA1308267C Improvements in or relating to joints between concrete elements
10/01/1992DE4109880A1 Protection against rock fall in mine - comprises corrugated arched plates located across gallery just under roof, fixed to sidewalls on anchored brackets
09/1992
09/22/1992US5149044 Cap shoe
09/08/1992US5145281 Method of renovating and/or protecting sewers or pipes
09/03/1992DE4138506A1 High performance textile mat for civil engineering use - has longitudinal and cross strips locked against each other at crossover points
09/03/1992DE4106678A1 Support system for intersection of longwall and roadway in mine - includes trimmer beam supported by hydraulic jack with profiled cap to catch respective ends of longwall and roadway supports
09/02/1992EP0501897A1 Shuttering lattice arch
08/1992
08/27/1992DE4102266C1 Multilayer resilient roadway or tunnel lining - has temporary lining reinforced by heavy duty textile fabric roller mats
08/25/1992US5141363 Mobile train for backfilling tunnel liners with cement grout
08/20/1992DE4104705A1 Multi-layer seal for railway tunnel - incorporates ventilated chambers which are vacuum tested and where leaking can be filled
08/20/1992DE4104298A1 Profiled mat reinforcement used in permanent lining in mining roads - comprise corrugated mesh of wires combined with fine wire net and overlaid with rod reinforcement
08/19/1992EP0498807A1 An arrangement in a tunnel vault.
08/12/1992EP0498786A2 Method for limiting subsidence during the excavation of underground cavities
08/12/1992CN2112689U Slurry making machine from clay
08/11/1992CA1306113C Tunnel lining process and apparatus therefor
08/04/1992US5135326 Articulated shield tunneling machine
07/1992
07/23/1992DE4101476A1 Steel profiled support member used in mining gallery - has stirrup shaped cross=section and is laid end on end with lapped ends
07/23/1992DE4101349A1 Flexible concrete construction segments for tunnel building - are joined to form rings by tongues and sockets with foam material infill
07/16/1992DE4101633A1 Process of fixing cushioned sealing membrane to tunnel walls - involves using compressed air plant to inflate it through hoses attached to it
07/15/1992CN1017465B Closed supports
07/07/1992US5127429 Method and device for distributing pumpable thick matter into several delivery pipes
07/02/1992DE4104726C1 Mined roadway support with spaced support arches - has reinforcement mats, in support stowing space, and underpinning lintel
06/1992
06/25/1992DE4105431C1 Roof support for mine galleries of spaced arches - has end slab as integral part of lagging mat, whose fold forms slab proper
06/17/1992DE4133577A1 Method of reducing or eliminating dynamic effect on permanent lining of mine tunnel - involves installation of cushioning layer simultaneously with drainage and sealing processes
05/1992
05/27/1992EP0486869A1 Washer with elastic water-swollen rubber
05/27/1992DE4037074A1 Method of supported mining tunnels - involves endless fabric tubing unwound from drum and filled under pressure and presed against rock face
05/14/1992DE4035659A1 Channel-profile mine extension arches - are extracted by release harness comprising stop claw and clamp wedge
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