WO2003091503A1 - Procede et dispositif pour produire des colonnes de materiaux dans le sol - Google Patents

Procede et dispositif pour produire des colonnes de materiaux dans le sol Download PDF

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Publication number
WO2003091503A1
WO2003091503A1 PCT/EP2003/004209 EP0304209W WO03091503A1 WO 2003091503 A1 WO2003091503 A1 WO 2003091503A1 EP 0304209 W EP0304209 W EP 0304209W WO 03091503 A1 WO03091503 A1 WO 03091503A1
Authority
WO
WIPO (PCT)
Prior art keywords
area
vibrator
ground
arrangement
region
Prior art date
Application number
PCT/EP2003/004209
Other languages
German (de)
English (en)
Inventor
Alexander Degen
Wilhelm Degen
Original Assignee
Vibroflotation B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vibroflotation B.V. filed Critical Vibroflotation B.V.
Priority to AU2003232497A priority Critical patent/AU2003232497A1/en
Publication of WO2003091503A1 publication Critical patent/WO2003091503A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile

Definitions

  • the present invention relates to a method and a device for producing columns of material in the ground, in particular columns of material which consist of a first material, for example crushed stone or gravel, and a second material, for example concrete.
  • a known method for producing such columns is the Franki method, which is briefly explained below.
  • a metal pipe is first placed on the surface of the earth and filled with gravel up to a height of 2-3 meters.
  • a large weight usually a weight of four to five tons, is then dropped onto this gravel column several times in the pipe, causing the pipe to move into the ground together with the gravel.
  • the pipe is held in place, which means that it can no longer move into the ground, and the gravel column is driven out of the pipe into the ground by further loading with the great weight.
  • the pipe is then filled with concrete and pulled out of the ground.
  • the gravel expelled from the pipe into the soil compresses the soil in this area and is expelled both downwards and to the sides, whereby the compacted gravel area gives the subsequently created concrete column a firm contact surface and prevents the concrete column from loading can sink into the ground.
  • a disadvantage of this method for producing a combined gravel / concrete column is the great effort that is required in the production.
  • the gravel area can only be created in the lower area of the total column with this method.
  • the aim of the present invention is to produce an improved method and an apparatus for producing a column of material consisting of two different materials in the ground.
  • the method according to the invention for producing columns of material in the ground provides for a device with a deep vibrator and with a material feed line which has an outlet opening arranged in the region of a vibrator tip of the deep vibrator, at least the vibrator tip of the device being introduced into the soil and a first material for producing a first material area is brought into the ground via the material feed line.
  • This process for producing the first material area can be repeated several times, the vibrating tip displacing this first material downwards and to the side and thereby compressing it when it penetrates the first material that has already been applied.
  • the vibrator tip is introduced into this first material area, and a second material for producing a second material area, which is at least partially surrounded by the first material area, is applied.
  • the use of a deep vibrator enables the first and second material areas, which together form the material column, to be produced in a comparatively simple and rapid manner.
  • the first material area is provided only in the lower area of the later to produce material column, after the production of this first material area the deep vibrator is gradually pulled out of the ground while filling up the resulting cavity with the second material.
  • the first material is preferably crushed stone or gravel and the second material is preferably concrete, as a result of which a concrete column is produced on a gravel foundation in the ground.
  • the first material region is designed such that it extends to the surface.
  • the deep vibrator is gradually pulled upwards to the lowest point in the so-called pilgrim step process, whereby the resulting cavity is filled with the first material and the deep vibrator after the material has been dispensed again penetrates a bit into the material being dispensed to compress or to drive out into the ground to the side.
  • the deep vibrator is introduced far into the first material area, but only to the extent that it always remains within the first material area and is then pulled out of the ground while filling the resulting cavity with the second material, creating a material column arises, which has a casing made of the first material, for example gravel or gravel, and a core made of the second material, for example concrete.
  • This pillar is particularly suitable for soft soils or soils in areas prone to earthquakes.
  • metal bars, metal grids or any other metal reinforcement can be inserted into the concrete column.
  • guide sleeves or guide tubes are arranged along the extension tube and deep vibrator or the feed line, via which stabilizing bars, in particular steel reinforcements, can be introduced into the material being applied.
  • FIG. 1 shows a method according to the invention for producing a column of material in the ground during various process steps
  • FIG. 2 shows a further embodiment of a material column produced using the method according to the invention
  • FIG. 3 shows a device according to the invention for producing columns of material in the ground
  • Figure 4 shows an inventive device according to a second
  • FIG. 5 shows a cross section through the device according to FIG. 4 in the area of the deep vibrator or extension tube.
  • FIG. 1A shows a device with a deep vibrator 5, which has a vibrator tip, and with a material feed line 3, which has a material outlet opening 3A and a material feed 3B in the region of the vibrator tip 4 at an end facing away from the outlet 3A.
  • the deep vibrator 5 is attached to an extension tube 7.
  • this extension tube is attached to a rope pulley 11 in order to be able to raise and lower the device with the deep vibrator 5, the extension tube 7 and the material feed line 3 by means of a rope which is attached to a construction device in a manner not shown in detail.
  • the deep vibrator with the extension tube can be attached to any other lifting and lowering device, for example a leader or excavator, which can lower and raise the deep vibrator.
  • the deep vibrator 5 is introduced into the ground.
  • the deep vibrator 5 penetrates under its own weight with a corresponding weakening of the rope ILA favored by the shaking movements into the ground.
  • Advance of the deep vibrator 5 can be facilitated by weights attached to the deep vibrator and by introducing water via the feed line 3.
  • the deep vibrator After the deep vibrator has reached a desired deepest point, it is, as shown in FIG. 1B, via the cable 11A (or another suitable advance direction, for example an excavator or leader) is pulled a little upwards, a first material, for example crushed stone or gravel, being fed in via the material feed line 3, and this material fills a cavity 100 which is created by withdrawing the deep vibrator. Subsequently, the rope 11A is released and the deep vibrator 5, supported by its vibrating movements and its own weight and possibly an active force of an excavator or leader, penetrates into the first material introduced into the cavity 100 and drives it out to the side and downward, as is the case is shown in Figure IC. The deep vibrator 5 penetrating into the gravel or gravel compresses this material and, by expelling this material into the surrounding soil, also the surrounding soil.
  • a first material for example crushed stone or gravel
  • This process of partially withdrawing the deep vibrator 5 while discharging the first material into the ground and then penetrating the deep vibrator into the spread material in order to drive it out into the surrounding soil and compact the soil can be repeated until a desired amount of material in the soil has been introduced or until a desired expansion of the first material region 20 resulting from the introduction and subsequent compaction is reached.
  • the deep vibrator is gradually pulled up to a bottom surface 200, the deep vibrator 5 only being pulled up piece by piece and the first material being introduced into the resulting cavity via the material feed line 3, and the deep vibrator 5 then being reintroduced the spread material advances to compact it and drive out the surrounding soil.
  • This material region 20 preferably comprises a pear-shaped bulge in the lower region, which is achieved by material being overlapped several times in this region the material feed line 3 is deployed and the deep vibrator 5 penetrates the deployed material frequently accordingly in order to achieve the desired pear-shaped base of the material column 20.
  • the deep vibrator 5 After the material column 20 has been produced, after the deep vibrator 5 has been pulled completely or almost completely upwards out of the ground, the deep vibrator 5 is introduced into the material column 20, starting from the surface 200 due to its own weight and that of it generated vibrations in the material column 20 penetrates to a predetermined depth. This depth is selected so that the deep vibrator 5 only penetrates so far that it always remains within the material column 20.
  • the deep vibrator is pulled upwards, a second material, in particular concrete, being introduced into the cavity created when the arrangement is pulled up, via the material feed line 3, so as to create a second material region 30 within the to generate the first material region 20.
  • FIG. 1E shows the material column after completion of the method, after the arrangement with the deep vibrator 5 has been pulled completely out of the ground and the resulting cavity has been completely filled with the second material via the second feed line 3.
  • the arrangement with the deep vibrator 5 can be continuously pulled upwards, or the arrangement with the deep vibrator 5 can, as in the production of the material column 20 from the first material, again after the partial lifting penetrate a bit into the deployed second material in order to compress it and at least partially drive this second material out into the material column 20 made of the first material so as to achieve a higher strength of the material column consisting of the material regions 20 and 30.
  • the material column produced according to the method explained in FIG. 1 consists of a material column 20 of a first material, preferably crushed stone or gravel, within which a second material column 30, preferably made of concrete, is arranged.
  • the concrete core 30 gives this column of material a high compressive strength when loaded from above, the previously produced pebble column 20 ensuring a consolidation of the surrounding soil and, in the case of the pear-shaped configuration shown in the figures, a wide contact surface in the lower region, and thus an advantageous one Pressure distribution in the soil causes.
  • FIG. 2 shows a further exemplary embodiment of a material column produced by means of the method according to the invention, in which case the first material region 20 does not extend up to the bottom surface 200, but is only present in the lower region of the material column.
  • This material region 20 shown in FIG. 2 can be produced in that the arrangement with the deep vibrator 5 is not drawn to the bottom surface 200 while filling the cavity with the first material during the production of the first material region 20.
  • the manufacture of the column 30 from the second material works in accordance with the method explained in FIG. 1, the arrangement with the deep vibrator 5 penetrating a little way into the material region 20 produced first and then continuously or gradually filling the resulting cavity with the second Material is pulled up.
  • reinforcing elements in particular steel bars, steel grids or the like, are introduced into the second, columnar material region 30.
  • the method according to the invention can be carried out by means of conventional devices which have a deep vibrator and a material feed line.
  • the method is advantageously carried out using a special device, which is explained with reference to FIGS. 3 and 4 below.
  • Figure 3 shows a first embodiment of such
  • a damping element 6 is preferably arranged between the deep vibrator 5 and the extension tube 7.
  • the device comprises a first feed arrangement for a first material, in particular bulk material.
  • This first feed arrangement has a material chamber 18 which adjoins an end of the material feed line 3 facing away from the outlet opening 3A.
  • the material feed arrangement further comprises a material feed 10, a closure arrangement 9 with an optionally openable and closable closure 9A being arranged between the material feed 10 and the material chamber 18.
  • the material feed 10 is funnel-shaped and is open at the top for material, in particular gravel or gravel take.
  • the material feed 10 preferably comprises a vibrator which is intended to prevent the material feed 10 or the closure 9A from becoming blocked.
  • a further material supply arrangement is connected to the material supply line 3, which in the exemplary embodiment shown in FIG. 3 is designed for supplying a flowable material, for example concrete, and has a material line 15 connected to the material supply line 3, to which a pump 12 for conveying the second material connected.
  • a closure arrangement Arranged in the material chamber 18 is a closure arrangement with a hydraulic cylinder and a closure plug 13, which can be actuated by the hydraulic cylinder 14, the plug 13 being able to be brought into an opening 16 between the material chamber 18 and the material feed line 3 by means of the hydraulic cylinder 14 to close this connection opening 16 so that, on the one hand, the material flow from the material chamber 18 into the material feed line 3 can be controlled via this plug 13 and, on the other hand, when the second material is fed in via the feed line 15, this second material cannot penetrate into the material chamber 18 can be.
  • an arrangement for generating an overpressure in the material chamber 18 is connected to the material chamber 18.
  • This arrangement for generating an overpressure is preferably also not connected to the material feed line 3 in a manner not shown in detail, in order to generate an overpressure in the working area of the deep vibrator 5, in order thereby to prevent groundwater from possibly penetrating into the cavities formed when the deep vibrator is raised.
  • Generating an overpressure ensures that when the plug 13 is opened, the first material is fed into the Material supply line 3 does not result in a pressure loss in this material supply line 3.
  • FIG. 4 shows a further exemplary embodiment of a device according to the invention, which differs from that shown in FIG. 3 in the region of the first material feed arrangement.
  • the first feed arrangement shown in FIG. 4 comprises, in addition to the closure arrangement 9, a second closure arrangement 19 with an optionally openable and closable closure 19A, the first closure 9 and the second closure 19 forming a lock for the first material ,
  • This first material in particular crushed stone or gravel, reaches the material chamber 18 between the two closure arrangements 9, 19 via the material feed 9, the material coming from the material chamber 18 into the material feed line 3 via the optionally openable closure 19A.
  • the material chamber 18 is preferably connected to a device for generating an overpressure in the material chamber 18 in order to generate a pressure in the material chamber 18 which corresponds to the pressure in the material supply line 3, in order to thereby cause a pressure drop in the material supply line 3 when the second shutter 19A to prevent.
  • Figure 5 shows a cross section through the inventive device according to Figure 4 in the area of the deep vibrator or the extension tube.
  • the cross section makes it clear that guide tubes 40a, 30b are arranged between the feed line 3 and the deep vibrator or the extension tube 7, which are each circular in cross section in the example.
  • These guide tubes 40a, 40b are fastened to the deep vibrator / extension tube 5/7 and / or the feed line 3 and, in the example, extend along the feed line 3 up to the vibrator tip 4 or the outlet of the feed line.
  • the guide tubes serve to introduce reinforcing elements, for example steel reinforcements 41a, 41b, which can be introduced into the guide tubes.
  • the guide tubes 40a, 40b are open at the top for the supply of the reinforcements and at the bottom for the removal of the reinforcements, wherein they preferably have a locking device 42 shown schematically in FIG.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour produire des colonnes de matériaux dans le sol. Le procédé selon l'invention consiste à mettre à disposition un dispositif comprenant un vibreur en profondeur (5) pourvu d'une pointe (4), ainsi qu'une conduite d'amenée de matériaux (3) présentant une ouverture de sortie (3A) placée au niveau de la pointe (4) du vibreur, à introduire au moins la pointe (4) du vibreur dans le sol et amener un premier matériau dans le sol pour former une première zone de matériau (20), puis à introduire au moins la pointe (4) du vibreur dans cette première zone de matériau (20) et amener un second matériau pour former une seconde zone de matériau (30) dans le sol, cette seconde zone étant au moins partiellement entourée par la première zone de matériau (20).
PCT/EP2003/004209 2002-04-24 2003-04-23 Procede et dispositif pour produire des colonnes de materiaux dans le sol WO2003091503A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003232497A AU2003232497A1 (en) 2002-04-24 2003-04-23 Method and device for the production of subterranean material columns

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10218330.9 2002-04-24
DE2002118330 DE10218330A1 (de) 2002-04-24 2002-04-24 Verfahren und Vorrichtung zur Herstellung von Materialsäulen im Boden

Publications (1)

Publication Number Publication Date
WO2003091503A1 true WO2003091503A1 (fr) 2003-11-06

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ID=29224732

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/004209 WO2003091503A1 (fr) 2002-04-24 2003-04-23 Procede et dispositif pour produire des colonnes de materiaux dans le sol

Country Status (3)

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AU (1) AU2003232497A1 (fr)
DE (1) DE10218330A1 (fr)
WO (1) WO2003091503A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7226246B2 (en) 2000-06-15 2007-06-05 Geotechnical Reinforcement, Inc. Apparatus and method for building support piers from one or successive lifts formed in a soil matrix
WO2012119601A2 (fr) * 2011-03-09 2012-09-13 Alexander Degen Dispositif vibrateur pour la fabrication de colonnes de matière de remplissage
WO2021032596A1 (fr) * 2019-08-22 2021-02-25 Alexander Degen Procédé de formation d'une fondation dans le sol

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742717A (en) * 1971-06-30 1973-07-03 G Wey Process for ground consolidation and reinforcement of stressed anchorage piling increasing the load capacity
US4397588A (en) * 1981-01-23 1983-08-09 Vibroflotation Foundation Company Method of constructing a compacted granular or stone column in soil masses and apparatus therefor
DE4013801A1 (de) * 1990-04-28 1991-11-07 Keller Grundbau Gmbh Verfahren zum herstellung von bodenkoerpern
FR2756853A1 (fr) * 1996-12-05 1998-06-12 Keller Grundbau Gmbh Colonne de materiau dans le sol, destinee a encaisser des charges ou a compacter le sol, procede et appareil pour sa realisation
EP1081290A2 (fr) * 1999-08-31 2001-03-07 Alois Robl Dispositif et méthode pour la constitution de colonnes porteuses noyées dans le sol
DE10025966A1 (de) * 2000-05-25 2001-12-06 Bauer Spezialtiefbau Stützschlauch-Säulen

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DE2601441C3 (de) * 1976-01-16 1981-10-22 Institut gornogo dela Sibirskogo otdelenija Akademii Nauk SSSR, Novosibirsk Verfahren zur Herstellung von Ortbetonpfählen
DE2948879C2 (de) * 1979-12-05 1982-12-09 Hochtief Ag Vorm. Gebr. Helfmann, 4300 Essen Verfahren zum Herstellen von Ortbeton-Rammpfählen
DE4138443A1 (de) * 1991-11-22 1993-05-27 Vibroflotation Ag Vorrichtung zur herstellung von pfaehlen aus beton oder dergleichen in erdreich
IT1254303B (it) * 1992-02-07 1995-09-14 Procedimento per la realizzazione di un micropalo per fondazioni di edifici adatto a terreni con caratteristiche meccaniche scadenti.
DE4219150C1 (en) * 1992-06-11 1993-09-23 Bauer Spezialtiefbau Gmbh, 86529 Schrobenhausen, De Underground mortar column prodn. - by drilling with auger through which hardenable suspension is fed
DE19509088A1 (de) * 1994-03-18 1995-09-21 Franki Grundbau Gmbh Verfahren zur Herstellung eines Ortbetonrammpfahles und Einrichtung zur Durchführung des Verfahrens
DE19707687C1 (de) * 1997-02-26 1998-10-15 Wilhelm Dr Degen Vorrichtung zum Herstellen von Materialsäulen im Boden
DE10108602A1 (de) * 2001-02-22 2002-09-12 Keller Grundbau Gmbh Verfahren zum Herstellen von Säulen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742717A (en) * 1971-06-30 1973-07-03 G Wey Process for ground consolidation and reinforcement of stressed anchorage piling increasing the load capacity
US4397588A (en) * 1981-01-23 1983-08-09 Vibroflotation Foundation Company Method of constructing a compacted granular or stone column in soil masses and apparatus therefor
DE4013801A1 (de) * 1990-04-28 1991-11-07 Keller Grundbau Gmbh Verfahren zum herstellung von bodenkoerpern
FR2756853A1 (fr) * 1996-12-05 1998-06-12 Keller Grundbau Gmbh Colonne de materiau dans le sol, destinee a encaisser des charges ou a compacter le sol, procede et appareil pour sa realisation
EP1081290A2 (fr) * 1999-08-31 2001-03-07 Alois Robl Dispositif et méthode pour la constitution de colonnes porteuses noyées dans le sol
DE10025966A1 (de) * 2000-05-25 2001-12-06 Bauer Spezialtiefbau Stützschlauch-Säulen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7226246B2 (en) 2000-06-15 2007-06-05 Geotechnical Reinforcement, Inc. Apparatus and method for building support piers from one or successive lifts formed in a soil matrix
WO2012119601A2 (fr) * 2011-03-09 2012-09-13 Alexander Degen Dispositif vibrateur pour la fabrication de colonnes de matière de remplissage
WO2012119601A3 (fr) * 2011-03-09 2012-11-15 Alexander Degen Dispositif vibrateur pour la fabrication de colonnes de matière de remplissage
US9546464B2 (en) 2011-03-09 2017-01-17 Alexander Degen Vibrating arrangement for producing columns of filling material
WO2021032596A1 (fr) * 2019-08-22 2021-02-25 Alexander Degen Procédé de formation d'une fondation dans le sol

Also Published As

Publication number Publication date
AU2003232497A1 (en) 2003-11-10
DE10218330A1 (de) 2003-11-13

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