| 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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| 05/17/1994 | US5312163 System for aiding operation of excavating type underground advancing machine |
| 05/17/1994 | CA2036674C Pipe bursting and replacement apparatus and method |
| 05/11/1994 | DE4237689A1 Radial-clearance measuring system between tunnelling shield and tubing exterior - uses three measuring sensors on shield with rays inclined rearwards and outwards to inner surfaces of shield and tubing |
| 05/10/1994 | US5310249 Method and apparatus for automatically controlling a mining machine |
| 05/03/1994 | US5308151 Cutter wheel assembly for mining machine |
| 04/28/1994 | WO1994009258A1 Process and machine for driving and lining an underground gallery |
| 04/28/1994 | WO1994009257A1 Shield excavator |
| 04/21/1994 | DE4335330A1 Motor driven rock drill with adjustable working dia. - rotates at right angle to and around borehole axis having adjustable stop for different diameters |
| 04/21/1994 | DE4234972A1 Roadway driving machine for opening arcuated ways - has two rollers, one on each side of holding arm in floor region with tool carrier above arm being height adjustable and laterally swivelable |
| 04/15/1994 | CA2108390A1 Excavation machine |
| 04/12/1994 | CA1328399C Process and means for measuring geological formations properties in a horizontal borehole drilled from an underground patch |
| 04/07/1994 | DE4233003A1 Mine gallery shield driving mechanism - has working head centre region with star-shaped straps, between which is left through space |
| 04/06/1994 | EP0590527A1 Method for driving a tunnel and tunnel driving machines equipped for carrying out the method |
| 04/03/1994 | CA2107536A1 Process for the driving of a tunnel and tunnel borers therefore |
| 03/30/1994 | EP0589243A2 Long hole chemical grout injector system |
| 03/24/1994 | DE4230547A1 Sealing tool for injecting liquids into e.g. holes in masonry - consists of tube with simple action spring-loaded device which expands outer sleeve after being inserted into hole to seal it |
| 03/23/1994 | EP0396742B1 Seal structure for main bearing of tunneling machine |
| 03/22/1994 | US5296915 Method and apparatus for controlling direction of excavating machine |
| 03/22/1994 | US5295734 Method and apparatus for drilling a tunnel |
| 03/22/1994 | CA1327891C Knife shield driving device and method for the excavating and/or final supporting of galleries or the like |
| 03/17/1994 | WO1994005941A1 Guided mole |
| 03/17/1994 | CA2142123A1 Guided mole |
| 03/16/1994 | CN1083897A Full-cross section planetary development machine |
| 03/16/1994 | CN1083896A Gallery supporting method for underground free digging section in coal mine |
| 03/16/1994 | CN1083895A Gallery supporting method for recovering supports and equipment on working face |
| 03/09/1994 | EP0585372A1 Mobile mining machine |
| 03/09/1994 | EP0585222A1 Injection means. |
| 03/09/1994 | EP0433440B1 Pipe connection for advance working pipes laid underground by an advance working technique |
| 03/09/1994 | CN1083563A Stabilizing compositions and methods for stabilizing subterranean formations |
| 03/03/1994 | DE4228467A1 Tunnelling or pipe driving shield - may operate in soft ground using airbag and fluid pumping system to carry away spoil |
| 03/02/1994 | EP0584183A1 A rock or concrete injection method and a device for performing the method |
| 03/01/1994 | US5290125 Tunnel lining method and apparatus suitable for the purpose |
| 03/01/1994 | CA1327351C Drill hole filling method and apparatus |
| 02/22/1994 | CA1327196C Rotary cutting tool |
| 02/16/1994 | CN1082140A Fast mucking method for digging tunnel, culvert, gallery and cavity |
| 02/10/1994 | DE4225838A1 Shield driving machine for tunnel excavation - has pressure plate and immersion plate with opening and closing shutter plate, forming excavation and ring chambers |
| 02/08/1994 | US5284403 Control method and control equipment for drilling apparatus |
| 02/03/1994 | WO1994002708A1 Device for monitoring collapse of natural ground in underground excavator |
| 02/03/1994 | DE4225121A1 Method of supporting tunnel face during shield driving excavation - involves bulkhead with high level shuttered opening and vertical partition next to face forming air pocket in between |
| 01/26/1994 | EP0580510A1 Method, equipment and device for generating and injecting foam for digging of soil |
| 01/20/1994 | DE4223461A1 Automatic measurement appts for progress of tunnelling machinery - includes computer for evaluation of images supplied by video camera trained on light boxes in machinery under propulsion |
| 01/06/1994 | WO1994000673A1 Control apparatus for excavators |
| 01/06/1994 | WO1994000672A1 Stabilizing compositions and methods for stabilizing subterranean formations |
| 01/06/1994 | CA2138030A1 Stabilizing composition and methods for stabilizing subterranean formations |
| 01/05/1994 | EP0412092B1 Method and apparatus for the production of underground pipelines |
| 01/04/1994 | US5275501 Quick opening manhole cover assembly for use with virtually any shape manhole cover |
| 12/29/1993 | EP0575708A1 Rock crusher with grid-type grate and tunneling shield equipped with this crusher |
| 12/22/1993 | CN1079793A Excavator |
| 12/15/1993 | EP0574187A1 Shield tunneling machine |
| 12/15/1993 | CN1079530A Shielding apparatus |
| 12/14/1993 | US5269628 Device for opening and supporting a headway |
| 12/12/1993 | CA2098138A1 Shield tunneling machine |
| 12/08/1993 | EP0573227A1 Shielding apparatus |
| 12/07/1993 | US5267814 Mechanism and method for continuously constructing reinforced concrete tunnel |
| 12/02/1993 | DE4208972C1 Messerschild zum Vortrieb von offenen Gräben im Boden Blade apparatus for propulsion of open trenches in the ground |
| 11/23/1993 | CA1324619C Shield tunneling machine with eccentricity accommodating seal structure |
| 11/11/1993 | WO1993022538A1 Method for excavating tunnels, utilisation of a foaming agent and new composition |
| 11/11/1993 | DE3943591C2 Control system for tunnelling appts. |
| 11/04/1993 | DE4221252C1 Stone crusher with and mutually swivelling jaws - has stone crushing jaws activated by hydraulic rams inside enclosed grating through which crushed stone is ejected |
| 11/04/1993 | DE4214689A1 Loading device for use with conveyor in conjunction with loading shovel - comprises pair of bent pivoted arms attached to swivelling plates which swing pendulum fashion towards conveyor |
| 11/04/1993 | DE4213987A1 Shield driving tunnel boring machine - has dry conveyor for removal of spoil without help of water and locking element with which it can be detached pressure tight from chamber |
| 10/26/1993 | US5255960 Tunnel drilling apparatus with drill waste removal |
| 10/19/1993 | US5253723 Ring cutter for tunnel drilling in rock |
| 10/14/1993 | WO1993020324A1 A drilling head device for a tunnel boring machine |
| 10/13/1993 | EP0565200A1 Tunnelling machine with cylindrical shield |
| 10/13/1993 | EP0564615A1 Tunnel-driving machine |
| 10/06/1993 | EP0528801A4 Pipe bursting and replacement apparatus and method |
| 09/30/1993 | WO1993019253A1 Cutting shield for digging open trenches in the ground |
| 09/30/1993 | DE4209695A1 Displacement method of excavating tunnel - mixes displaced soil with liq. and then subjects it to pressure to form tunnel wall. |
| 09/16/1993 | WO1993018275A1 Roller cutter assembly having adjustable ring cutter spacing |
| 09/01/1993 | EP0558388A1 Method for cutting rock of low cohesion, in particular for making tunnels or galleries and device for carrying out this method |
| 09/01/1993 | EP0557805A1 Tunnel excavation apparatus |
| 09/01/1993 | EP0476037B1 Device for opening and supporting a headway |
| 08/31/1993 | US5240352 Method for the mounting of underground pipelines |
| 08/31/1993 | US5240350 Apparatus for detecting position of underground excavator and magnetic field producing cable |
| 08/26/1993 | DE4209802C1 Rock or masonry sealant injection tube - has bursting disc retained by securing ring in counterbored and externally conical discharge end |
| 08/26/1993 | DE4205158A1 Roller cutter for slewing roller cutting machine - is shaped like frustrum of cone and its cutting edges are equipped with roller drills |
| 08/25/1993 | EP0557268A1 Method of making long tunnels using tubbings as lining |
| 08/24/1993 | CA1321588C Alpha-aryl-alpha-phenylethyl-1h-1,2,4-triazole-1- propanenitriles |
| 08/17/1993 | US5236284 Varying the position of center of gravity of bit unit |
| 08/10/1993 | US5234257 Mobile mining machine having tilted swing axis and method |
| 08/10/1993 | US5234064 Roller cutter assembly having adjustable ring cutter spacing |
| 08/03/1993 | US5232268 Method of breaking a full face of rock for constructing shafts and tunnels |
| 07/29/1993 | DE4208788A1 Device for placing floor seal beneath deposit in shield drive and tube rough pressing processes - involves shield sluices introduced in start and target trenches with outwardly sealable sluice chamber |
| 07/29/1993 | DE4206831A1 Verfahren fuer einen mechanischen schildvortrieb Method for a mechanical shield propulsion |
| 07/29/1993 | DE4202060A1 Device for sealing working chamber of shield drive device on delivery unit for heaping spoil - involves tight suspension introduced from outside into delivery pipe conduit which produces sealing plug |
| 07/29/1993 | DE4202013A1 Driving machine for drilling sections and tunnels - works according to back cut principle and has telescopic guides on rotating drill head for telescope arms fitted with cutting rollers |
| 07/21/1993 | EP0528917A4 Mobile continuous mining machine |
| 07/20/1993 | US5228752 Tunnel boring machine |
| 07/14/1993 | CN1021594C Intermediate pipe-jacking apparatus |
| 07/01/1993 | DE4212483C1 Laser beam arrangement for monitoring and controlling travel direction - of machines in underground mining and tunnel construction |
| 06/24/1993 | WO1993012320A1 Cutter of a boring head, hub for the cutter and method of manufacturing such a hub |
| 06/24/1993 | DE4142449A1 Tunnel driving machine - has cutting wheel with radial arms and central opening bridged by cutter comb equipped with cutters |
| 06/24/1993 | CA2125191A1 Cutter of a boring head, hub for the cutter and method of manufacturing such a hub |
| 06/22/1993 | US5221160 Subterranean connecting method for construction of shield tunnel and connecting apparatus therefor |
| 06/17/1993 | DE4213332C1 Drive for underground prodn. of conduits - comprises outer appts. area in which a striker and floor compressor are integrated |
| 06/16/1993 | EP0546411A1 Quick opening manhole cover assembly |
| 06/08/1993 | US5217235 Seal assembly |
| 05/19/1993 | EP0541804A1 System for supporting drive of excavating type underground digging machine |
| 05/19/1993 | CN1020779C Method of supporting the smectite bearing soft rock tunnel |