| Patents for E02D 3 - Improving or preserving soil or rock, e.g. preserving permafrost soil (8,968) |
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| 11/29/1990 | WO1990014322A1 Method and plant for the production of injectable cement mixtures |
| 11/28/1990 | EP0399672A1 Soil nailing |
| 11/27/1990 | US4973811 In situ decontamination of spills and landfills by radio frequency induction heating |
| 11/20/1990 | US4971480 Ground hardening material injector |
| 11/14/1990 | CN1046923A Dry grouting agent and method of producing same |
| 11/07/1990 | EP0179924B1 Unit marine structure |
| 10/30/1990 | US4966499 Vibratory compactor |
| 10/30/1990 | US4966493 Process and apparatus for cleaning contaminated soil |
| 10/24/1990 | CN2064375U Powder metering jet-stir machine |
| 10/23/1990 | US4965292 Forming polyurethane plastics; polysiloxane added as antifoam agent |
| 10/23/1990 | US4964918 Grouting composition |
| 10/23/1990 | US4964753 Three roll compactor |
| 10/18/1990 | DE3912277A1 Hydraulic machine suitable for regulating circuit - has revolution rate measurement arrangement with pulse generator and sensor inside requiring no external elements |
| 10/18/1990 | DE3912140A1 Tamping tool for compacting loose material - is used with pipelines and has surfaces inclined at angle of between 60 and 90 deg. |
| 10/09/1990 | US4961463 Thermosyphon condensate return device |
| 10/09/1990 | CA1275024A1 Industrial textile fabric |
| 10/09/1990 | CA1274977A1 Method of producing artificial ground |
| 10/02/1990 | US4960524 Method for soil consolidation |
| 09/26/1990 | CN1009727B Tripping device of book |
| 09/25/1990 | US4958962 Methods of modifying the structural integrity of subterranean earth situs |
| 09/19/1990 | EP0388276A1 Apparatus for making reinforced-earth zones constituted by a mixture of granular material and textile yarns |
| 09/18/1990 | US4957393 In situ heating to detoxify organic-contaminated soils |
| 09/13/1990 | DE3906956A1 Apparatus for compacting roadways, soils and the like |
| 09/12/1990 | EP0221068B1 Method to manufacture compactor and compactor manufactured by the method, and compactor series |
| 09/11/1990 | US4956535 Electrode systems for in situ vitrification |
| 09/05/1990 | EP0385557A1 Soil improving material based on polyurethane |
| 09/01/1990 | CA2011134A1 Compacting vibrating roller |
| 08/28/1990 | US4952450 Foam panel and block constructions |
| 08/22/1990 | CN2060787U Reinforcing soft-founction of drain well by copper slag in bags |
| 08/22/1990 | CN1044839A Infiltration-draining method for underground structure |
| 08/21/1990 | US4950102 Wheel compaction unit |
| 08/21/1990 | CA1272964A1 Air-borne and footstep noise insulating panel for floating plaster floors or floating wooden floors |
| 08/14/1990 | US4948298 Process for restoring channels threatening to collapse, in particular profiled channels |
| 08/09/1990 | WO1990008855A1 A process for building a concrete structure in loose matter, from ground level, and equipment for carrying out said process |
| 08/01/1990 | EP0379743A1 Method for cleaning soil by conducting through a heated medium |
| 08/01/1990 | CN1044317A Surface stabilisation process for soils |
| 07/25/1990 | EP0378961A1 Unit comprising mesh combined with geotextile |
| 07/25/1990 | CN1008924B Spiral quincux pile to increase ground supporting force to foundation |
| 07/25/1990 | CN1008923B Combined treatment method with vacuum discharging and blade type extrusion installation |
| 07/17/1990 | WO1990008226A1 Method for stabilizing loose ground |
| 07/17/1990 | CA2024706A1 Unconsolidated soil stabilization process |
| 07/12/1990 | WO1990007611A1 Civil engineering device which can be used, in particular, for laying vertical drains |
| 07/10/1990 | US4940366 Method of treating backfill |
| 06/26/1990 | US4936711 Process for preparing vegetation bedrock and muddy borrow soil base material blasting nozzle used therefor |
| 06/14/1990 | WO1990006480A1 Closed cryogenic barrier for containment of hazardous material in the earth |
| 06/14/1990 | WO1990006402A1 Initiating in-situ vitrification using an imgregnated cord |
| 06/13/1990 | EP0258324B1 Process for restoring channels threatening to collapse, in particular profiled channels |
| 06/13/1990 | CN2058187U Heavy rammer |
| 06/13/1990 | CN1008372B High-permeability furan-epoxy chemical grouting material |
| 06/08/1990 | CA2004688A1 Method for initiating in-situ vitrification using an impregnated cord |
| 06/06/1990 | EP0371463A2 Method for installing an anchor and injection drill anchoring for performing the method |
| 06/05/1990 | CA1269853A1 Process and installation for freezing soils |
| 06/05/1990 | CA1269852A1 Process and installation for freezing soils by means of a cryogenic liquid |
| 05/29/1990 | CA2003979A1 Method of and arrangement for setting anchors in loose rock ranging from cohesion-poor to non-cohesion rock |
| 05/23/1990 | CN1008111B Injection material with urea and acrylic acid as host agent |
| 05/22/1990 | US4927289 Vibratory mechanism for a compaction roller |
| 05/17/1990 | DE3920800C1 Detoxifying soil in-situ - by introducing cleansing medium and vibrating using cylindrical chamber with 3 radial plate carrying tubes |
| 05/09/1990 | EP0366708A1 Probe for optically monitoring progress of in-situ vitrification of soil |
| 04/24/1990 | US4919566 Fill and compaction roller using readily replaceable cleat assemblies |
| 04/11/1990 | EP0362856A2 Process and apparatus for purifiying polluted soils |
| 04/03/1990 | CA1267275A1 Reinforced soil and method |
| 03/29/1990 | DE3831544A1 Use of organo-mineral products for consolidating and/or sealing formations which are exposed to increased high-energy radiation |
| 03/28/1990 | EP0359961A1 Hydrophobic material used for drainage of culvert |
| 03/28/1990 | CN1007365B Soil-stabilising apparatus |
| 03/27/1990 | US4911584 Method for soil injection |
| 03/27/1990 | US4911248 Earth compacting apparatus and method |
| 03/27/1990 | CA1267023A1 Walk behind soil compacter having a double vibratory drum and an artificial frame |
| 03/20/1990 | US4909848 Silicon coated cement particles |
| 03/06/1990 | US4906142 Side cutting blades for multi-shaft auger system and improved soil mixing wall formation process |
| 02/28/1990 | EP0355101A1 A method for arranging the cooling in a compactor and a cooling system for the realization of the method. |
| 02/28/1990 | CN1006993B Injection agent system for making soil |
| 02/27/1990 | US4904125 Process for strengthening geological formations |
| 02/20/1990 | US4902172 Multi-rods type apparatus for ground improvement |
| 02/13/1990 | US4900194 Portable machine and process for forming ground structures reinforced with textile threads |
| 02/13/1990 | CA1265679A1 Device for stabilizing bulk material, especially soil masses |
| 01/30/1990 | US4897119 Addition polymer containing acrylic acid, unneutralized or salt of alkali metal or ammonia; chemical resistance; nontoxic; grouting |
| 01/25/1990 | WO1989009664A3 In situ heating to detoxify organic-contaminated soils |
| 01/24/1990 | CN1006563B Method and apparatus of forming underground solidification structures |
| 01/23/1990 | CA1264536A1 Process for consolidating soils |
| 01/17/1990 | EP0351229A2 Improvements relating to soil reinforcement |
| 01/17/1990 | CN1038854A Wet-clay thickener |
| 01/10/1990 | CN1038681A Complex cloth without spinning |
| 01/04/1990 | DE3821899A1 Method for the removal of contaminated heterogeneous mixtures from landfill sites or the like |
| 01/03/1990 | CN1038477A Cinder pile and its special construction apparatus |
| 12/28/1989 | DE3920316A1 Vibrationsmechanismus fuer eine verdichtungswalze Vibration mechanism for a compaction roller |
| 12/13/1989 | EP0345324A1 Process for making soil impermeable to water, in particular for repairing leaking underground tubes or for improving the durability of structures |
| 12/12/1989 | US4886400 Side cutting blades for multi-shaft auger system and improved soil mixing wall formation process |
| 11/30/1989 | DE3817691A1 Method of removing special waste from a deposit site |
| 11/28/1989 | US4883589 System for removing contaminants from ground water |
| 11/15/1989 | EP0341500A2 Method for consolidating geological formations |
| 11/09/1989 | DE3814170A1 Method of decontaminating soils |
| 11/07/1989 | US4878781 Moisture control system for a foundation |
| 11/07/1989 | US4878544 Compaction roller |
| 11/02/1989 | EP0339785A1 Settling or compacting granular material |
| 10/25/1989 | EP0338829A2 Multilayer non-woven fabric |
| 10/25/1989 | EP0338039A1 Process for sealing soil formations, in particular for creating waste disposal sites |
| 10/25/1989 | CN2046511U Water draining, tamping and slope consolidating device fro earth |
| 10/19/1989 | WO1989009664A2 In situ heating to detoxify organic-contaminated soils |
| 10/17/1989 | US4874641 Applying a biodegradable foam comprising an aqueous synergistic mixture of an organic sulfate or sulfonate salt and an acid salt |
| 10/11/1989 | EP0336825A1 Injectable product for sealing and/or consolidating ground and constructional material and operation process |