| Patents for E21D 13 - Large underground chambers; Methods or apparatus for making them (272) |
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| 04/12/1994 | US5302052 Underground work chamber assembly and method for the construction thereof |
| 09/01/1993 | CN1021986C Construction of large underground space |
| 05/18/1993 | US5211507 Method of making a huge elongated space of square or rectangular cross section under the ground |
| 04/06/1993 | US5199817 Process of providing an elongate underground cavity |
| 12/22/1992 | US5173027 Automated parking system and subassemblies therefor |
| 10/07/1992 | EP0507331A1 Method of making a huge elongated space of square or rectangular cross section under the ground |
| 06/02/1992 | US5118220 Method of building underground cavern and tunneling machine |
| 04/14/1992 | US5104259 Method for excavating rock cavities |
| 10/09/1991 | CN1055214A Construction of large underground space |
| 09/17/1991 | US5049004 Underwater building and constructing method thereof |
| 09/11/1991 | EP0445712A1 Underground circular or variable radius parking place |
| 06/19/1991 | EP0433253A1 Method for excavating rock cavities |
| 06/07/1991 | CA2031615A1 Method for excavating rock cavities |
| 02/06/1991 | CN1011524B Machine of installing supports for tunnelling |
| 10/24/1990 | EP0393197A1 Method of building underground cavern and tunnelling machine |
| 08/08/1990 | CN1044507A Construction in water and the method of constructing |
| 07/25/1990 | EP0379383A1 Method of constucting underwater buildings |
| 05/29/1990 | US4929123 Method for building large span tunnels by means of a cellular arch |
| 01/11/1990 | DE3823356A1 Apparatus for removing metal parts |
| 12/28/1989 | WO1989012729A1 Method of forming underground passage and tunnel excavator |
| 09/20/1989 | EP0332799A1 Method for building large span tunnels by means of a cellular arch |
| 07/13/1989 | DE3800046A1 Support for a crown kerf |
| 05/09/1989 | CA1253702A1 Method of excavating a storage complex in rock for storing radioactive waste |
| 03/28/1989 | CA1251805A1 Mobile service rig |
| 12/07/1988 | EP0195064B1 A rock cavity |
| 02/16/1988 | US4725164 Method of excavating a storage complex in rock for storing radioactive waste |
| 12/09/1987 | CN87103758A Machine of installing supports for tunnelling |
| 11/24/1987 | US4708523 Rock cavity |
| 10/15/1987 | DE3626755A1 Method and apparatus for producing a blind shaft or large mine opening |
| 07/16/1987 | DE3600128A1 Consolidation of face excavations |
| 05/07/1987 | DE3636907A1 Cutter-shield driving apparatus |
| 03/19/1987 | DE3532317A1 Intermediate material store in underground workings |
| 02/12/1987 | DE3631424A1 Method of disposing of harmful substances with simultaneous energy generation |
| 10/22/1986 | EP0198808A1 A method of excavating a storage complex in rock for storing radioactive waste |
| 09/24/1986 | EP0195064A1 A rock cavity. |
| 08/05/1986 | US4603910 Method of blasting rock caverns with large cross-sectional area |
| 07/22/1986 | US4601518 Method of excavating rock caverns by blasting |
| 06/04/1986 | EP0132269B1 A method of excavating underground caverns in rock |
| 03/27/1986 | WO1986001854A1 A rock cavity |
| 02/25/1986 | US4572707 Method in the excavation of underground caverns in rock |
| 02/11/1986 | US4569616 Driving process of enlarged tunnel |
| 07/23/1985 | US4530621 Shield driving process for enlargement |
| 01/30/1985 | EP0132269A1 A method of excavating underground caverns in rock. |
| 10/02/1984 | US4474506 Method for constructing in rock storage locations for liquid products, for example oil products |
| 07/19/1984 | WO1984002741A1 A method in the excavation of underground caverns in rock |
| 07/03/1984 | CA1170065A1 Process for communicating a water body with tunnels bored under the bottom of said body |
| 05/22/1984 | CA1167650A1 Building of an underground structure, and structure so produced |
| 04/03/1984 | US4440524 Process for bringing a body of water into communication with a tunnel |
| 02/14/1984 | US4431341 Construction of a concrete lined chamber |
| 12/27/1983 | US4422798 Process for construction of an underground structure and the structure thus obtained |
| 10/25/1983 | CA1155722A1 Method for providing waterproof coating for masonry walls |
| 02/17/1983 | WO1983000526A1 A method for constructing in rock storage locations for liquid products, for example oil products |
| 02/01/1983 | US4371292 Gravity structure |
| 01/11/1983 | CA1139117A1 Gravity structure |
| 12/14/1982 | US4363563 System for the storage of petroleum products and other fluids in a rock |
| 01/12/1982 | CA1115972A1 Method and device for building in the ground vertical walled structures starting from a subterranean conduit |
| 11/26/1981 | WO1981003291A1 Method of providing waterproof coating for masonry walls |
| 11/25/1981 | EP0040459A1 Method of providing waterproof coating for masonry walls |
| 11/24/1981 | CA1112884A1 Complex process and machine group for the support of underground cavities and cavity systems |
| 07/07/1981 | US4277309 Nuclear reactor installation |
| 06/16/1981 | US4273813 Method of providing waterproof coating for masonry walls |
| 03/03/1981 | CA1096644A1 System for the storage of radioactive material in rock |
| 01/20/1981 | US4245926 Welded grid, primarily for securing underground cavities, cavity systems, as well as process for making the grid |
| 12/16/1980 | CA1091458A1 Welded grid primarily for supporting underground cavities and cavity systems as well as a process |
| 03/11/1980 | US4192629 System for the storage of radioactive material in rock |
| 02/19/1980 | US4189254 System for the storage of radioactive material |
| 09/11/1979 | US4167087 Nuclear reactor installation in underground construction |
| 01/23/1979 | US4135450 Method of underground mining |
| 09/12/1978 | CA1038244A1 Formation of glass fibre reinforced unsaturated polyester resin sheets on ground surfaces |
| 04/18/1978 | US4084384 Advanced slot stress control method of underground excavation |
| 12/14/1976 | US3996751 Method of blasting and reinforcing rock cavities |
| 07/27/1976 | US3971223 Protection method |