| 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) |
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| 02/14/1991 | DE3925583A1 Mining gallery permanent support lining - comprises flat fabric skin filled with hardening material supporter against rock until hard |
| 02/12/1991 | US4992334 Low temperature waterproofing laminates |
| 02/12/1991 | US4991999 Corrugated structural panels |
| 02/07/1991 | DE3925638A1 Permanent lining lifting device for use in mining - has swinging jib to pick up and erect lining frames and capping, and runs on overhead rails |
| 02/06/1991 | CN1011524B Machine of installing supports for tunnelling |
| 02/05/1991 | US4990027 Small diameter |
| 02/05/1991 | CA1279761C Clamps |
| 01/30/1991 | EP0410335A2 Reinforcing member for the formation of support frames in tunnelling |
| 01/30/1991 | CN1011425B Pipe line or pipe components |
| 01/29/1991 | CA1279741C Grouting composition |
| 01/24/1991 | DE3923265A1 Suspension for rails of lining machinery in mining - includes adjustable traverse pinned to vertical perforated rod and claws to attach to ribs |
| 01/23/1991 | EP0408577A1 Shelter |
| 01/10/1991 | DE3922047A1 Shaft bell for tunnel - comprises sectional frames and supports with built-in expansion devices |
| 12/19/1990 | EP0402576A1 Shield machine for use in a shield tunneling method for constructing a small diameter tunnel |
| 12/19/1990 | CN1047904A Movable framework of tunnel wall covering apparatus |
| 12/18/1990 | US4978073 Apparatus for pneumatically discharging liquified building material containing a hardener |
| 12/06/1990 | DE3931369A1 Fixing device for sealing foil over concrete tunnel lining - consists of socket embedded in concrete and profiled press stud to fix sealer |
| 12/05/1990 | EP0400814A1 Reinforced concrete lining segment incorporating nonreturn valve |
| 11/29/1990 | DE4016247A1 Sealing strips for tunnel segments - have internal bores connected by tubes to side where water is under pressure so that pressure increases efficiency of seal |
| 11/14/1990 | EP0397400A1 Seal |
| 11/14/1990 | CN1010423B Process for sealing off the water flowing in tunnels, mine entries, canals and other known subsurface ducts |
| 11/13/1990 | US4969769 Joints between elements |
| 11/07/1990 | EP0293381B1 System for the insulation of mining installations and a method for implementing the system |
| 11/06/1990 | CA1275813C Large diameter burried pipe |
| 10/31/1990 | EP0394806A1 Method and apparatus for tunnelling |
| 10/25/1990 | DE3913325A1 Municipal services conduit seal - comprises protruding rubber frame fitting in peripheral recess in cover |
| 10/11/1990 | DE3911477C1 Process for producing a sprayable, porous insulating material for underground mining |
| 10/11/1990 | DE3911398A1 Process for sealing concrete filling nozzles, and apparatus for carrying out the process |
| 10/11/1990 | DE3911397A1 Method and device for blocking formwork plates |
| 10/02/1990 | US4960348 Truss systems, components and methods for trussing arched mine roofs |
| 09/27/1990 | DE3909212A1 Apparatus for introducing concrete into tunnel shutterings |
| 09/27/1990 | DE3908968C1 Method and support elements for supporting underground tubes |
| 09/20/1990 | DE3934222C1 Underground coal mine road heading - involves movable limiting members in lagging mats to hold backfill in place |
| 09/13/1990 | DE3906750A1 Tunnel frost protection |
| 09/13/1990 | DE3902777A1 Steel-plate segment for a roadway support |
| 09/12/1990 | EP0386396A2 Composite apparatus for making galleries |
| 09/12/1990 | EP0386368A2 Improvements in or relating to joining concrete elements |
| 09/06/1990 | DE3906749A1 Tunnel frost protection |
| 09/05/1990 | EP0375738A4 Fire resistant insulation composition |
| 08/29/1990 | EP0248725B1 Method of rendering a hydraulic structure made of compacted concrete or filled earth water-tight |
| 08/23/1990 | DE4003525A1 Lattice girder for supporting freshly cut tunnels - comprises longitudinal members braced transversely and with meander strutting |
| 08/23/1990 | DE3908970C1 Support element for mine roadways and tunnels |
| 08/23/1990 | DE3905388A1 Method of constructing subterranean plane load-bearing structures |
| 08/22/1990 | EP0383456A2 Improvements relating to arch setting |
| 08/15/1990 | CN1009169B Moving mould of tunnel liner device |
| 08/09/1990 | DE3919277C1 Yielding arch support in mine - has arch segments connected by sliding system |
| 08/08/1990 | EP0381615A2 Stiffening element for a lattice girder |
| 08/08/1990 | EP0273104B1 Joint pack ring |
| 08/07/1990 | US4946315 Mine roof system |
| 08/07/1990 | US4946309 Sealing profile |
| 08/01/1990 | CA2007292A1 Stiffening element for a lattice girder |
| 07/26/1990 | DE3902128A1 Temporary roadway-support and transport system |
| 07/26/1990 | DE3901689A1 Method of constructing forepoling wire-mat lagging and devices for carrying out the method |
| 07/26/1990 | DE3901611A1 Method of filling cavities in underground mining, and apparatus |
| 07/25/1990 | EP0378972A2 Grid lagging for a tunnel lining |
| 07/18/1990 | EP0378371A1 Low temperature applicable waterproofing laminates |
| 07/12/1990 | DE3900431A1 Underground gallery support |
| 07/10/1990 | US4940360 Insulated tunnel liner and rehabilitation system |
| 07/04/1990 | EP0376896A2 Profiled panel for lining the interior walls of traffic tunnels |
| 07/04/1990 | EP0375738A1 Fire resistant insulation composition. |
| 06/27/1990 | EP0375427A1 Improvement in and relating to seals |
| 06/21/1990 | DE3842444A1 Frost protection for tunnels |
| 06/21/1990 | DE3842236A1 Device for the strutting of support frames for tunnel or roadway support in mining |
| 06/20/1990 | EP0373308A2 Tying means for concrete works below ground |
| 06/20/1990 | CN1008464B Air stream agitating and ebullient spraying technology and equipments |
| 06/19/1990 | US4934873 Mine roof support utilizing roof anchors having eye-bolt heads |
| 06/13/1990 | EP0372609A1 Universal tubbing element for lining excavations of circular shape |
| 06/13/1990 | DE3841455A1 Device for laying seals |
| 06/07/1990 | DE3840603A1 Spacers |
| 06/05/1990 | US4931098 Method for adding silica fume to dry shotcrete mixture |
| 05/31/1990 | WO1990005836A1 Process for the lagging of walls and ceilings in rock spaces and system for use in such lagging |
| 05/31/1990 | DE3937711A1 Tensioning straps and bolts for fixing lining frames - are used in mining and comprise symmetrical profiled flat bars |
| 05/31/1990 | DE3839472A1 Tunnel frost protection |
| 05/23/1990 | EP0369030A1 Articulated shield excavator |
| 05/23/1990 | DE3839002A1 Method and edge bearer for the support of an underground mining space in the roadway/face transition area |
| 05/23/1990 | DE3839001A1 Support for roadways and tunnels |
| 05/23/1990 | CN2057458U Sealing supporter specially suitable for drifting galleries |
| 05/17/1990 | WO1990005267A1 Internal pipe repair sleeve and liner |
| 05/17/1990 | DE3838630A1 Tunnel frost protection |
| 05/16/1990 | EP0368174A1 Sealing strip for tunnel segments |
| 05/15/1990 | CA1268935A1 Process for strengthening and sealing geological formations |
| 05/10/1990 | DE3936767A1 Sealing profile for tunnel lining segments - has pressure lip on water pressure side, which extends at sharp angle towards gap middle in free state |
| 05/08/1990 | US4924379 Multiprocessor system with several processors equipped with cache memories and with a common memory |
| 05/03/1990 | DE3836293A1 Frost protection for tunnels in competent rock |
| 04/19/1990 | DE3837993A1 Fastening means |
| 04/19/1990 | DE3837992A1 Spacer |
| 04/19/1990 | DE3834701A1 Composite textile mat |
| 04/17/1990 | US4917538 Tunnel lining process and apparatus therefor |
| 04/10/1990 | US4915542 Process for waterproofing surfaces |
| 04/03/1990 | US4913587 Form assembly for making covering wall of tunnel made by shield type excavator |
| 04/03/1990 | US4913583 Method for waterproofing a roller compacted concrete of rubble |
| 03/28/1990 | EP0359988A2 Sealing connection between two curved wals with transition to a straight wall |
| 03/27/1990 | US4911578 Process for making a tunnel and advancing a tunneling read with a wall-supporting shield |
| 03/22/1990 | DE3914950A1 Textile hose for mine walling - has narrowed portions formed from outside to weaken hardening material contained in hose |
| 03/20/1990 | US4909668 Movable sealing assembly for tunneling machines |
| 03/13/1990 | US4907910 Roof structure for tunnel |
| 02/28/1990 | CN2053564U Magic hand for spraying concrete |
| 02/22/1990 | WO1990001094A3 A process and device for distributing pumpable viscous materials among several lines |
| 02/15/1990 | DE3844487C1 Anchorage for shuttering panels for embedding supporting load-bearing members in concrete |
| 02/13/1990 | US4900607 Sealing profile |