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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08/27/1997 | EP0791725A1 Method and device for automatically placing tunnel lining segments |
08/27/1997 | EP0791724A1 Tunnel drilling machine |
08/27/1997 | EP0630436B1 Cutting shield for digging open trenches in the ground |
07/17/1997 | WO1997025519A1 Trenchless underground boring system with boring tool location |
07/17/1997 | WO1997025514A1 Improvements relating to tunnel-boring machines |
07/17/1997 | DE19610239C1 Device for enlarging cross-section of pilot bore or for replacing old pipe |
07/17/1997 | CA2241808A1 Trenchless underground boring system with boring tool location |
07/10/1997 | WO1997024511A1 Device for controlling direction of auger machine |
07/08/1997 | US5645375 Method and apparatus for grouting of tunnel liners |
07/02/1997 | EP0781895A1 Method and apparatus of excavation for underground structures of variable cross sectional area |
06/26/1997 | DE19617196C1 Sealing-solidifying agent injection system in ground or rock, e.g. two-ingredient fast-reacting agent, esp. polyurethane |
06/24/1997 | USRE35542 Pipe bursting and replacement method |
06/24/1997 | US5641207 Boring machine |
06/18/1997 | EP0622524B1 System for measuring excavation position of underground excavator |
06/10/1997 | US5636972 Device for extrusion of two component synthetic resins |
06/03/1997 | US5634692 Main-ancillary tunnel excavator |
06/03/1997 | US5634691 Method for excavating a working face by blasting |
05/28/1997 | DE19537387C1 Expander station for underground pipe advancing of tunnel with circular cross=section |
05/27/1997 | US5632575 Method and apparatus for controlled pumping of bentonite around a pipe jacked tunnel |
05/22/1997 | DE19542828A1 Continuous miller for mining coal, minerals, ore, rock or like |
05/21/1997 | EP0774566A1 Method for securing in advance the roof when driving tunnels |
05/21/1997 | EP0774043A1 Driving shield |
05/21/1997 | EP0471859B1 Method and system for detecting collapse of natural ground in shield driving method |
05/15/1997 | DE19605514C1 Face cutting tool holder for advance shield working machine |
05/14/1997 | EP0772730A1 Driving shield |
05/06/1997 | US5626201 Disc cutter and method of replacing disc cutters |
04/16/1997 | EP0768447A1 Shield tunneling method and machine therefor |
04/09/1997 | CN1147055A Combined self-advancing shield of sliding retaining-plate |
04/01/1997 | US5615976 Double walled pipe, jacking method and pipe end structure of leading pipe |
03/27/1997 | DE19612743C1 Sealing working surface during formation of hollow space in tunnel and pipeline construction |
03/26/1997 | EP0764761A1 Tunnel boring machine |
03/18/1997 | US5611979 Fabrication method for a funnel liner |
03/12/1997 | EP0761747A1 Compositions of non-ionic and ionic hydrocolloids and their use as auxiliary agent in tunnel construction |
03/12/1997 | CN1034236C Underground trolley road construction method |
03/06/1997 | WO1997008429A1 Method and apparatus for measuring position and attitude of tunnel boring machine |
03/06/1997 | DE19633784A1 Shield advance machine for mining equipment |
03/05/1997 | CN1144327A Direction detector |
02/27/1997 | WO1997007317A1 Mining machine |
02/26/1997 | EP0759117A1 Device for driving a tunnel or drain pipe |
02/26/1997 | CN1143725A Method for burying and laying pipeline |
02/20/1997 | WO1996033335A3 Displaceable working apparatus with extensible boom |
02/20/1997 | DE19530569A1 Tunnelling shield with powered cutting wheel and face working-chambers |
02/06/1997 | WO1997004214A1 Disc cutter structure |
02/05/1997 | EP0757158A1 An excavating method and apparatus for constructing the base of a tunnel |
02/04/1997 | US5598895 Cutter assembly having a plurality of independently rotatable cutting units thereon |
01/22/1997 | CN1140790A Tunneler and tunnel excavating method |
01/08/1997 | EP0752503A1 Sealing ring for gaps between multi-element constructions, in particular for underground works |
01/02/1997 | DE19522228A1 Tunnelling through hard rock etc. |
12/27/1996 | WO1996041932A1 Method of roof control in an underground mine |
12/27/1996 | EP0750095A1 Measurement and directional control of a driving apparatus in tunnel construction |
12/27/1996 | EP0750027A1 Use of cellulose mixed ethers as additives for earth pressure shields |
12/27/1996 | CA2224207A1 Method of roof control in an underground mine |
12/19/1996 | DE19623653A1 Roadway driving machine with travel drive |
12/18/1996 | EP0521157B1 Propelling system in small diameter pipe propeller |
12/17/1996 | US5585726 Electronic guidance system and method for locating a discrete in-ground boring device |
12/17/1996 | US5584222 Method for charging bore-holes with explosive |
12/11/1996 | CN1033529C Method for laying well and pipe line directly on top pipe line |
12/10/1996 | US5582467 Displaceable working apparatus with extensible boom |
12/04/1996 | EP0745175A1 Process for removing the core of earth from a pipe laid without excavation and scraper for implementing said process |
11/28/1996 | WO1996037678A1 Locating a discrete in-ground boring device |
11/26/1996 | US5577565 Compact roller cutter |
11/20/1996 | EP0743506A2 Direction finding system |
11/20/1996 | CN1136126A Borehole boring method and machine |
11/19/1996 | US5575537 Tunnel drilling machine or tube-driving machine |
11/19/1996 | CA2038793C Shield tunneling apparatus |
11/13/1996 | EP0742346A2 Tunnel boring machine |
11/13/1996 | EP0741834A1 System, method and cutterhead for dry full-area drilling |
11/12/1996 | CA2021773C Shield tunnelling machine |
11/06/1996 | EP0741227A2 Borehole boring method and machine |
11/05/1996 | US5572318 Lead pipe configuration for underground pipe laying |
10/30/1996 | EP0740050A2 Installation and method of levelling for construction work related to forced-insertion methods |
10/24/1996 | WO1996033335A2 Displaceable working apparatus with extensible boom |
10/24/1996 | CA2217578A1 Displaceable working apparatus with extensible boom |
10/23/1996 | EP0595971B1 Tunnelling shield with individual cutters or an enclosing casing |
10/23/1996 | CN1133926A Devices and method to stop water inflow to underground pipe laying work area |
10/17/1996 | DE19513448A1 Feed and extraction machine for underground mining |
10/09/1996 | CN1132761A Gel of apolar medium, its use for preparation of water-based drilling fluids |
10/03/1996 | WO1996030720A1 Method and apparatus for measuring position and posture of tunnel excavator |
10/02/1996 | EP0735303A1 Process for laying underground pipes between control chambers |
10/02/1996 | EP0735237A1 Method for shield excavating soil layer |
10/02/1996 | EP0735231A2 Device for driving pipes, for enlarging pilot boreholes or for replacement of buried pipelines |
10/02/1996 | CN2236544Y Inserting shield structure |
09/26/1996 | WO1996029505A1 Tunnel excavator |
09/25/1996 | CN1131720A Shield tunnel boring machine |
09/11/1996 | EP0731252A2 Boring ram for the destructive replacement of a buried pipe |
09/11/1996 | EP0638137B1 Method for excavating tunnels, utilisation of a foaming agent and new composition |
09/11/1996 | EP0471858B1 System for detecting the position of an underground excavator |
09/04/1996 | EP0730084A2 Method and apparatus for controlling a tunneling advancing machine |
09/04/1996 | EP0729555A1 Improved guided mole |
08/28/1996 | EP0728974A1 Buried pipe laying method |
08/21/1996 | EP0727562A1 Improved bearing system for a boring machine |
08/21/1996 | EP0727561A1 Method for controlling a tunnel boring machine |
08/20/1996 | US5547260 Auxiliary cutter units of a shield machine |
08/18/1996 | CA2169330A1 Boring machine |
08/15/1996 | WO1996024753A1 Continuous control system for a mining or tunnelling machine |
08/14/1996 | EP0726383A1 Injection anchor for tunnels and trenches |
08/07/1996 | EP0725205A1 Devices and method to stop water inflow to an underground pipe laying work area |
08/07/1996 | CN1032500C Rectangular shield excavating machine |
07/25/1996 | WO1996022448A1 Cutter assembly having a plurality of independently rotatable cutting units thereon |
07/25/1996 | CA2208713A1 Cutter assembly having a plurality of independently rotatable cutting units thereon |