| 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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| 05/18/1993 | US5211507 Method of making a huge elongated space of square or rectangular cross section under the ground |
| 05/13/1993 | WO1993009333A1 Tunnel-driving machine |
| 05/13/1993 | DE4136642A1 Spoil shifting loader in tunnel construction - consists of telescopic swinging arms which clear spoil arising from the excavation on to inclined loading platform |
| 05/11/1993 | CA1317450C Process for strengthening geological formations |
| 05/11/1993 | CA1317449C Process for strengthening geological formations |
| 05/04/1993 | US5208538 Apparatus having a pair of magnetic field generating cables for measuring position of an underground excavator |
| 04/29/1993 | WO1993008370A1 Shield tail seal |
| 04/28/1993 | EP0538718A1 Improvements in a tunnel lining method and apparatus suitable for the purpose |
| 04/28/1993 | EP0368887B1 Selectively phased water supply of a cutter head |
| 04/27/1993 | US5205613 Tunnel boring machine with continuous forward propulsion |
| 04/27/1993 | US5205612 Transport apparatus and method of forming same |
| 04/27/1993 | CA1316960C Thrust transmitting device |
| 04/22/1993 | DE4234264A1 Schildschwanzdichtung Shield tail seal |
| 04/20/1993 | US5203614 Tunneling machine having liquid balance low flow slurry system |
| 04/15/1993 | WO1993007359A1 Mobile mining machine having tilted swing axis |
| 04/15/1993 | DE4136059C1 Retrievable jacking tube with variable dia. - has profiled stiffening rings for elastically deformable tube jacket |
| 04/15/1993 | CA2121044A1 Mobile mining machine having tilted swing axis |
| 04/14/1993 | CN1070980A Self-propelling circle face shield structure body |
| 04/08/1993 | DE4229015A1 Striker, milling, drilling roller for surface levelling of rock, ore and the like - is eccentrically activated, balanced, self-rotating or remotely driven. |
| 04/06/1993 | US5199823 Increased storage stability; adding hydroxysodalite or zeolite to mealmine(or urea)-formaldehyde resin |
| 04/06/1993 | US5199818 Method and apparatus for detecting collapse of natural ground in shield driving method |
| 03/31/1993 | EP0534922A2 A transportation system for continuous tunnel construction work |
| 03/31/1993 | EP0534338A2 Control system for a tunnel boring machine |
| 03/30/1993 | CA1315273C Method for boring hole in the ground and apparatus therefor |
| 03/25/1993 | DE4131132A1 Roadway or tunnel driving machine - has jibs of length and swivel action for tool cut surfaces intersecting at specified angle |
| 03/18/1993 | DE4130293A1 Mining machine spherical bearing - has damper formed by silicon oil in chamber between outer rings carried by hydraulic cylinder |
| 03/16/1993 | US5193938 Method and apparatus for laying pipe |
| 03/09/1993 | US5192116 Gantry-type mobile mining machine |
| 03/09/1993 | US5192115 Tramming mobile mining machine |
| 03/04/1993 | DE4114904A1 Drive for cladding into tunnel face - is activated by hydraulic or pneumatic rams attached to guide rails anchored fore and aft to supports |
| 03/03/1993 | EP0528917A1 Mobile continuous mining machine |
| 03/03/1993 | EP0528801A1 Pipe bursting and replacement apparatus and method |
| 03/02/1993 | US5190705 Method for lining large-diameter pipes |
| 03/02/1993 | US5190407 Rectangular shield excavating machine |
| 02/25/1993 | DE4127992A1 Beton-kunststoff-verbundrohr, verfahren zu seiner herstellung und seine verwendung als vortriebsrohr Concrete-plastic composite pipe, process for its production and its use as a power-tube |
| 02/18/1993 | DE4226324A1 Verfahren und einrichtung zum abbau eines untertage-vorkommens Method and device for decomposing an underground-occurrence |
| 02/16/1993 | US5186579 Apparatus for controlling direction of underground excavator |
| 02/10/1993 | CN1068887A Method and apparatus for controlling direction of excavating machine |
| 02/09/1993 | US5184918 Recoverable tunnelling machine |
| 02/04/1993 | WO1993002276A1 Tunnelling shield with individual cutters or an enclosing casing |
| 02/04/1993 | WO1993002275A1 Radial-control unit for the cutters of a tunnelling shield |
| 02/04/1993 | DE4136864C1 Mining shield grouting tubes - has steel castings welded to tail of shield to form oval-section piping |
| 02/04/1993 | DE4125343A1 Mixing reactive components for consolidation of underground rock - using system which discharges them from drums using filtered and dried compressed air so that they only meet at final output pump |
| 02/02/1993 | CA1313382C Cutter bit |
| 01/28/1993 | DE4124420A1 Aus einem vortriebsschild mit einzelnen messern oder einem geschlossenen schildmantel gebildeter vortriebsschild From a power-shield formed with diameters individual or a closed shield, coat jacking shield |
| 01/28/1993 | DE4124419A1 Radialsteuerung von messern einer messerschildvortriebsvorrichtung Radial control of knives knife-shield propulsion device |
| 01/27/1993 | EP0524577A1 Shield tunneling device |
| 01/27/1993 | EP0524226A1 Injection bore anchor with conveyor screw. |
| 01/27/1993 | EP0524223A1 Injection drilling anchor. |
| 01/26/1993 | US5181577 Device for fixing disk cutter to tunnel excavator |
| 01/20/1993 | EP0523907A2 Method and apparatus for controlling direction of excavating machine |
| 01/20/1993 | EP0523093A1 Ring clamp for a cutter ring in a tunnel drilling machine. |
| 01/19/1993 | US5180252 Earth pressure system shield process |
| 01/14/1993 | DE4123031A1 Shield drive for mining machine - has pair of excavator arms fixed to cutting head with which heaped material is cleared away from pivot range of arms and fed to loader |
| 01/07/1993 | EP0521157A1 Propelling system in small diameter pipe propeller |
| 12/30/1992 | EP0520909A1 Tunnelling machine having a cutting head, the position of which can be controlled |
| 12/29/1992 | US5174683 For digging tunnels |
| 12/24/1992 | DE4128993C1 Method of reducing level of mining roadway - has horizontally swinging arm pivoted for movement ahead of skids to carry tools |
| 12/23/1992 | WO1992022732A1 Tunneling machine having liquid balance low flow slurry system |
| 12/23/1992 | WO1992022731A1 Driving shield with hydraulically supported facing, and a device for providing temporary mechanical support |
| 12/23/1992 | WO1992022730A1 Tunnel boring machine with continuous forward propulsion |
| 12/16/1992 | EP0518705A1 Crushing apparatus |
| 12/16/1992 | EP0517946A1 Tunnel driving method |
| 12/15/1992 | CA1311505C Selectively phased water supply of a cutter head |
| 12/10/1992 | WO1992021855A1 Gantry-type mobile mining machine |
| 12/10/1992 | WO1992021854A1 Mobile mining machine |
| 12/10/1992 | WO1992021852A1 Method and drilling apparatus for line drilling |
| 12/10/1992 | CA2109921A1 Mobile mining machine |
| 12/09/1992 | CN1066907A Underground pipe making machine and its working method |
| 12/02/1992 | EP0515912A2 Tunnel-structure to suppress propagation of pressure disturbances generated by travelling of high-speed trains |
| 12/01/1992 | US5167468 System for the robotic fabrication of pipelines and tunnels along unlimited three-dimensional curvilinear paths |
| 11/26/1992 | WO1992020902A1 A rock or concrete injection method and a device for performing the method |
| 11/26/1992 | WO1992020901A1 Injection means |
| 11/24/1992 | US5165822 Pipe joint for driving pipes laid underground by the driving technique |
| 11/24/1992 | US5165490 Boring tool having electromagnetic wave generation capability |
| 11/12/1992 | DE4142800A1 Tunnel excavating machine - can undercut walls of tunnel without first boring plain hole, using two swinging adjustable arms |
| 11/12/1992 | DE4119305C1 Forming tight connection between concrete pipe and embedded steel sleeve - uses sealing ring fixed at inner periphery of steel sleeve and subsequently deformed by applied force |
| 11/12/1992 | DE4114859A1 Procedure and device for replacement of brick built sewers - old sewer demolishes and spoil removed and new concrete sewer lining introduced |
| 11/11/1992 | WO1992020614A1 Displaceable working platform with extensible boom |
| 11/11/1992 | EP0511954A1 Ring cutter for tunnel drilling in rock |
| 11/11/1992 | CA2102124A1 Displaceable working platform with extensible boom |
| 10/29/1992 | WO1992018751A1 Tunnel-driving machine |
| 10/29/1992 | DE4114232A1 Sleeve connector for pipes - has outer seals and inner seals held in position by holder extending into gap between pipe ends |
| 10/29/1992 | DE4113662A1 Transportband-aufhaengung an einer teilschnittmaschine Conveyor-suspension on a part-cut machine |
| 10/29/1992 | DE4113208A1 Tunnelvortriebsmaschine TBM |
| 10/28/1992 | EP0510959A1 A seal assembly |
| 10/26/1992 | CA2067009A1 Seal assembly |
| 10/20/1992 | US5156490 Shield tunnelling apparatus |
| 10/15/1992 | WO1992017685A1 Hopper and hood combination for tunneling machine |
| 10/15/1992 | WO1992017684A1 Tunnel boring machine and method |
| 10/07/1992 | EP0507331A1 Method of making a huge elongated space of square or rectangular cross section under the ground |
| 10/06/1992 | US5152638 Process and apparatus for excavating tunnels |
| 10/01/1992 | WO1992016720A1 System for measuring excavation position of underground excavator |
| 10/01/1992 | DE4109871A1 Rohrvorpresseinrichtung und rohrvorpressverfahren zum verlegen von rohrleitungen mit nicht-begehbarem innendurchmesser im erdboden Pipe rough-pressing and rohrvorpressverfahren to the laying of pipelines with non-walk-in internal diameter in the ground |
| 09/23/1992 | EP0504181A1 Improved process for stabilising rock and/or filling hollows, e.g. in tunnel building and mining |
| 09/22/1992 | US5150056 Method and device for locating the longitudinal axis of a branch pipe from a main pipe |
| 09/17/1992 | WO1992014035A3 Auxiliary cutter for a mining machine with coaxial cutting drums |
| 09/16/1992 | CN1018272B Well drilling and finishing process for radial wells inside well |
| 08/27/1992 | DE4105253A1 Shield advance drive arrangement for cutting mining galleries with arched profile - has propulsion machine fitted in blade shield and drill cutting pre-bore hole in core of rock wall breast, together with pivotable cutting arms |
| 08/27/1992 | DE4105252A1 Propulsion machine for gallery and tunnel prepn. - has drill head with drill cutting pre-drill, hole and pivotable cutting arms widening pre-drill hole to gallery profile |