All Keller Holding catalogues and technical brochures

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Deep Vibro TechniquesBrochure 10-02 E

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Deep vibro techniques present flexible solutions for soil improvement.They are mainly used under foundations of structures that are to be constructed on soils of low bearing capacity.Keller developed the depth vibrator (patented in 1934), which was originally...

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3 1008060402000,60,0020,0060,020,066,020600,22,0100806040200Overview of deep vibro techniquesThe subsoilUsually the soil conditions are described in a soil investigation report. If the properties of the existing soil cannot fulfil the requirements set...

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4The Vibro Compaction process in granular soilsEquipment and executionThe compaction of granular soils is most economically attained with vibrators oscillating at a comparatively low frequency to achieve optimum compaction of the soil particles.The vibrator...

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50–1–2–3–4–5–6–7–8–9–32–31–33–34–35–48–49–50Natural or man made deposits of sand and gravel are frequently not dense enough or are too inhomogeneous...

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Brochure 67-03 EThe Soilcrete® –Jet GroutingProcess

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Contents3 History4 Soilcrete® –Jet Grouting Process6 Process Variations7 Construction Forms8 Construction Sequences10 Stabilisation11 Sealing12 Addresses

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3Small scale underpinning works were thebeginnings of an unusual way of jet grouting.To reach todays state of the art, additionaldevelopment was necessary.• The process was modified to suit differenttypes of soils.• The application was developed...

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41008060402000,002 0,006 0,02 0,06 0,2 0,6 2,0 6,0 20 60Soilcrete – Jet Grouting ProcessThe jet grouting processThe jet grouting process “Soilcrete” is recognisedas a cement soil stabilisation. With theaid of high pressure cutting jets...

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5500100%0,002 0,06 2,0 60 7 28250 14 21 425075100The Soilcrete – propertiesSoilcrete acts in the ground according to thespecification either as a stabilisation or as asealing structure. A combination of bothproperties is increasingly required.The...

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The Soilfrac®ProcessBrochure 61- 02 E

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CONTENTSSoilfrac®-today . . . . . . . . . . . . . . . . 2Soilfrac-Process Description . . . . . . . . 4Soilfrac-Foundation Restoration . . . . . 6Soilfrac-Lifting of Structures . . . . . . . 8Soilfrac-Protection of Structures . . . . 10

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DevelopmentOriginally the Soilfracturing process was used in the oil industry tofrac sub soils to create paths for the oil to flow toward the oil wells.In the sixties, Keller engineers adapted this process and developedseveral solutions to problems in...

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Process4uneconomicalfavourableInstallation pointbasementInstallation point shaft Installation point groundsurfaceProcessSoilfrac®Soilcrete-Jet Grouting®Compaction GroutingSynthetic SolutionsSodium Silicate Solutions (lv)Silicate Gel (hv)Ultrafine...

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1 2 312453Construction siteinstallationInstallation point3 Multiple groutingThe sleeves along thegrout pipe may begrouted once – orseveral times- accordingto the technicalrequirements. The groutquantity, the max. groutpressure – and in caseof...

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Brochure 66-01ECompactionGrouting

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2ContentsThe method on the market ...... 3Process description ..................... 4Soil improvement ........................ 6Foundation rehabilitation ........... 8Cavity grouting ........................... 10

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3DevelopmentThe compaction grouting process, which was first applied in the USA during the 1950ies and furtherdeveloped, mainly by engineers of Hayward Baker Inc., is gaining more and more acceptance in Europesince the beginning of the 1990ies.When Keller...

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1008060402000,002 0,006 0,02 0,06 0,2 0,6 2,0 6,0 20 601 2 34T E C H N I Q U EThe Compaction Grouting ProcessWhen applying the compaction grouting process usually a stiff to plastic grout is injectedinto the soil under pressure. It expands in the soil...

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1 2 3100020003000400000 5 10 15 20 0 10 20 30 40 0 200 400 6000 10 20 30 401121311102345679852 Compaction GroutingThe grout paste is prepared in the mixingplant and pressed into the soil by means ofa custom-built grout pump.While gradually pulling or...

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GeotechnicalSolutions

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2 1. . . . . . . . . . . . . . . . . . . . . . . . 3. . . . . . . . . . . . . . . . . . 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7. . . . . . . . . . . . . . . . . . . . ....

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35324Soil InvestigationOur strength lies in carrying out large soilinvestigation programs for infrastructureprojects, industrial plants, dams and landfillsites.BoreholesRotary drillingPercussion drillingWire line drillingDrilling with grabsAugeringReverse...

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4 123 4 5 6 7Typical layout of a Soilcrete sealing slab consisting of intersecting columns.Precise survey systems ensure effective sealing.

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5Ground Water SealingAs lowering the ground water level withdeep wells is subjected to more and morerestrictions, Keller is able to offer its sealingwall and slab technologies as alternatives.Whether it’s an excavation or an embankment,Keller provides...