Patents
Patents for E21D 9 - Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries (7,097)
08/1997
08/27/1997EP0791725A1 Method and device for automatically placing tunnel lining segments
08/27/1997EP0791724A1 Tunnel drilling machine
08/27/1997EP0630436B1 Cutting shield for digging open trenches in the ground
07/1997
07/17/1997WO1997025519A1 Trenchless underground boring system with boring tool location
07/17/1997WO1997025514A1 Improvements relating to tunnel-boring machines
07/17/1997DE19610239C1 Device for enlarging cross-section of pilot bore or for replacing old pipe
07/17/1997CA2241808A1 Trenchless underground boring system with boring tool location
07/10/1997WO1997024511A1 Device for controlling direction of auger machine
07/08/1997US5645375 Method and apparatus for grouting of tunnel liners
07/02/1997EP0781895A1 Method and apparatus of excavation for underground structures of variable cross sectional area
06/1997
06/26/1997DE19617196C1 Sealing-solidifying agent injection system in ground or rock, e.g. two-ingredient fast-reacting agent, esp. polyurethane
06/24/1997USRE35542 Pipe bursting and replacement method
06/24/1997US5641207 Boring machine
06/18/1997EP0622524B1 System for measuring excavation position of underground excavator
06/10/1997US5636972 Device for extrusion of two component synthetic resins
06/03/1997US5634692 Main-ancillary tunnel excavator
06/03/1997US5634691 Method for excavating a working face by blasting
05/1997
05/28/1997DE19537387C1 Expander station for underground pipe advancing of tunnel with circular cross=section
05/27/1997US5632575 Method and apparatus for controlled pumping of bentonite around a pipe jacked tunnel
05/22/1997DE19542828A1 Continuous miller for mining coal, minerals, ore, rock or like
05/21/1997EP0774566A1 Method for securing in advance the roof when driving tunnels
05/21/1997EP0774043A1 Driving shield
05/21/1997EP0471859B1 Method and system for detecting collapse of natural ground in shield driving method
05/15/1997DE19605514C1 Face cutting tool holder for advance shield working machine
05/14/1997EP0772730A1 Driving shield
05/06/1997US5626201 Disc cutter and method of replacing disc cutters
04/1997
04/16/1997EP0768447A1 Shield tunneling method and machine therefor
04/09/1997CN1147055A Combined self-advancing shield of sliding retaining-plate
04/01/1997US5615976 Double walled pipe, jacking method and pipe end structure of leading pipe
03/1997
03/27/1997DE19612743C1 Sealing working surface during formation of hollow space in tunnel and pipeline construction
03/26/1997EP0764761A1 Tunnel boring machine
03/18/1997US5611979 Fabrication method for a funnel liner
03/12/1997EP0761747A1 Compositions of non-ionic and ionic hydrocolloids and their use as auxiliary agent in tunnel construction
03/12/1997CN1034236C Underground trolley road construction method
03/06/1997WO1997008429A1 Method and apparatus for measuring position and attitude of tunnel boring machine
03/06/1997DE19633784A1 Shield advance machine for mining equipment
03/05/1997CN1144327A Direction detector
02/1997
02/27/1997WO1997007317A1 Mining machine
02/26/1997EP0759117A1 Device for driving a tunnel or drain pipe
02/26/1997CN1143725A Method for burying and laying pipeline
02/20/1997WO1996033335A3 Displaceable working apparatus with extensible boom
02/20/1997DE19530569A1 Tunnelling shield with powered cutting wheel and face working-chambers
02/06/1997WO1997004214A1 Disc cutter structure
02/05/1997EP0757158A1 An excavating method and apparatus for constructing the base of a tunnel
02/04/1997US5598895 Cutter assembly having a plurality of independently rotatable cutting units thereon
01/1997
01/22/1997CN1140790A Tunneler and tunnel excavating method
01/08/1997EP0752503A1 Sealing ring for gaps between multi-element constructions, in particular for underground works
01/02/1997DE19522228A1 Tunnelling through hard rock etc.
12/1996
12/27/1996WO1996041932A1 Method of roof control in an underground mine
12/27/1996EP0750095A1 Measurement and directional control of a driving apparatus in tunnel construction
12/27/1996EP0750027A1 Use of cellulose mixed ethers as additives for earth pressure shields
12/27/1996CA2224207A1 Method of roof control in an underground mine
12/19/1996DE19623653A1 Roadway driving machine with travel drive
12/18/1996EP0521157B1 Propelling system in small diameter pipe propeller
12/17/1996US5585726 Electronic guidance system and method for locating a discrete in-ground boring device
12/17/1996US5584222 Method for charging bore-holes with explosive
12/11/1996CN1033529C Method for laying well and pipe line directly on top pipe line
12/10/1996US5582467 Displaceable working apparatus with extensible boom
12/04/1996EP0745175A1 Process for removing the core of earth from a pipe laid without excavation and scraper for implementing said process
11/1996
11/28/1996WO1996037678A1 Locating a discrete in-ground boring device
11/26/1996US5577565 Compact roller cutter
11/20/1996EP0743506A2 Direction finding system
11/20/1996CN1136126A Borehole boring method and machine
11/19/1996US5575537 Tunnel drilling machine or tube-driving machine
11/19/1996CA2038793C Shield tunneling apparatus
11/13/1996EP0742346A2 Tunnel boring machine
11/13/1996EP0741834A1 System, method and cutterhead for dry full-area drilling
11/12/1996CA2021773C Shield tunnelling machine
11/06/1996EP0741227A2 Borehole boring method and machine
11/05/1996US5572318 Lead pipe configuration for underground pipe laying
10/1996
10/30/1996EP0740050A2 Installation and method of levelling for construction work related to forced-insertion methods
10/24/1996WO1996033335A2 Displaceable working apparatus with extensible boom
10/24/1996CA2217578A1 Displaceable working apparatus with extensible boom
10/23/1996EP0595971B1 Tunnelling shield with individual cutters or an enclosing casing
10/23/1996CN1133926A Devices and method to stop water inflow to underground pipe laying work area
10/17/1996DE19513448A1 Feed and extraction machine for underground mining
10/09/1996CN1132761A Gel of apolar medium, its use for preparation of water-based drilling fluids
10/03/1996WO1996030720A1 Method and apparatus for measuring position and posture of tunnel excavator
10/02/1996EP0735303A1 Process for laying underground pipes between control chambers
10/02/1996EP0735237A1 Method for shield excavating soil layer
10/02/1996EP0735231A2 Device for driving pipes, for enlarging pilot boreholes or for replacement of buried pipelines
10/02/1996CN2236544Y Inserting shield structure
09/1996
09/26/1996WO1996029505A1 Tunnel excavator
09/25/1996CN1131720A Shield tunnel boring machine
09/11/1996EP0731252A2 Boring ram for the destructive replacement of a buried pipe
09/11/1996EP0638137B1 Method for excavating tunnels, utilisation of a foaming agent and new composition
09/11/1996EP0471858B1 System for detecting the position of an underground excavator
09/04/1996EP0730084A2 Method and apparatus for controlling a tunneling advancing machine
09/04/1996EP0729555A1 Improved guided mole
08/1996
08/28/1996EP0728974A1 Buried pipe laying method
08/21/1996EP0727562A1 Improved bearing system for a boring machine
08/21/1996EP0727561A1 Method for controlling a tunnel boring machine
08/20/1996US5547260 Auxiliary cutter units of a shield machine
08/18/1996CA2169330A1 Boring machine
08/15/1996WO1996024753A1 Continuous control system for a mining or tunnelling machine
08/14/1996EP0726383A1 Injection anchor for tunnels and trenches
08/07/1996EP0725205A1 Devices and method to stop water inflow to an underground pipe laying work area
08/07/1996CN1032500C Rectangular shield excavating machine
07/1996
07/25/1996WO1996022448A1 Cutter assembly having a plurality of independently rotatable cutting units thereon
07/25/1996CA2208713A1 Cutter assembly having a plurality of independently rotatable cutting units thereon
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