EP0900883B1 - Method for making a column in the ground, which can carry loads from buildings or traffic - Google Patents
Method for making a column in the ground, which can carry loads from buildings or traffic Download PDFInfo
- Publication number
- EP0900883B1 EP0900883B1 EP97115299A EP97115299A EP0900883B1 EP 0900883 B1 EP0900883 B1 EP 0900883B1 EP 97115299 A EP97115299 A EP 97115299A EP 97115299 A EP97115299 A EP 97115299A EP 0900883 B1 EP0900883 B1 EP 0900883B1
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- European Patent Office
- Prior art keywords
- ground
- sheathing
- column
- tube
- compacted
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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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
- E02D5/66—Mould-pipes or other moulds
- E02D5/665—Mould-pipes or other moulds for making piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
Definitions
- the invention relates to a method for producing a soil column for Deduction of building and traffic loads according to the preamble of the claim 1.
- a material column with great rigidity is created in the non-load-bearing floor is deposited in the stable subsurface.
- the building and traffic loads are on the one hand transferred to the load-bearing soil and on the other hand by load radiation absorbed into the surrounding soil.
- the surrounding floor is at compresses and partially solidifies the described method and is therefore able to Absorb horizontal forces.
- the known process is carried out in such a way that a casing pipe is driven into the ground and then emptied inside. Then the filter emptying covering, which is on a in Smaller inner tube diameter is inserted into the jacket tube. The granular Material is fed into the inner tube, after which the jacket tube is compressed is shaken out and then also the inner tube. Such a thing The process leads to satisfactory results, but is proportionate consuming.
- GB-A-1 315 075 describes a method for the production of concrete piles in the ground known. A downwardly open pipe is driven into the ground and then emptied. Then an envelope is entered and a reinforcement introduced. Then concrete is poured in and the pipe is gradually pulled out, whereby the concrete filling causes an expansion of the covering in the surrounding Floor into it. This results in a pear-shaped, expanded concrete pile.
- From US-A-3 805 535 is a method for producing a concrete column with a enlarged foot became known.
- a displacement pipe is placed in driven the earth.
- the tube already contains a sack-like, open at the bottom Envelope that is held to the bottom of the displacement tube.
- Concrete is poured while pulling up the displacement pipe, the closure remains in the ground. This forms an expanded concrete foot below the cladding.
- the concrete column is above the foot surrounded by the envelope even after the tube has been pulled out is.
- the invention is therefore based on the object of a method for producing a Floor pillar for the transfer of building and traffic loads to create that with a material can be carried out with less effort and too special leads to favorable results.
- a single tube is also used in the method according to the invention, which is designed as a displacement tube. It has e.g. a diameter of 0.8m. It is therefore provided with a closure during driving so that the bottom does not penetrates into the interior of the displacement tube. Displacement pipes are economical only shake into the ground up to a certain diameter.
- Displacement pipes the lower end of z. B. is closed by a flap, are known for example from DE 296 11 427.
- the bag-like covering is placed in the displacement tube introduced, the diameter of the bag-like envelope approximately corresponds to the inside diameter of the displacement pipe.
- the bag-like wrapping therefore hangs more or less deep into the displacement tube and has an irregular shape, in this case not yet expanded.
- the sack-like covering can reach the bottom of the Displacement tube, be moved forward. Further filling of the granular material leads to the bag-like wrapping gradually completely against the ground and creates the wall of the displacement pipe. If necessary, must be at the top End of the sack-like covering, which protrudes from the upper end of the casing tube, A certain amount of tension must be constantly provided so that it is not unnecessary Wrinkles are coming.
- the surrounding material By driving in the displacement tube, the surrounding material is already in to some extent partially compressed.
- By compacting the granular material in the sheathing, in particular when pulling the displacement tube, is followed by another Compression step to the extent that an equilibrium is again established between the horizontal tension of the column to the outside and the reaction forces in the surrounding ground.
- the granular material in the casing is also compacted horizontally or radial expansion of the column.
- the intensive compression of the filling material further leads to an expansion of the geotextile material, which creates an additional horizontal Expansion of the column.
- the pillars formed in this way are such that even with a horizontal one Deflection of column sections or a spreading of the columns among themselves the pillar remains intact.
- the covering consists of a suitable geotextile material, e.g. from one fabric or a lattice in combination with nonwoven and is by a circular process seamlessly made. It has a short-term strength of at least 50 kN / n.
- a displacement pipe which for example has a diameter of 0.8 m, is in a layer of soil is driven in, which consists of unsustainable material.
- the Displacement pipe is placed in a load-bearing layer below the first layer driven, for example in 1.5 m. However, the displacement pipe extends some measure above the first layer.
- the driving in takes place in a known manner with appropriate vibrators.
- a sack-like covering in the pipe is down to the level of the load-bearing layer lowered.
- the covering By simply lowering the covering, it hangs more or less unregulated inside the tube, with the end around the edge of the displacement tube laid around and held by suitable means.
- Subsequently granular, load-bearing, non-setting material is filled in.
- the Filling the first batches causes the wrapper to be under vertical tension is tensioned so that it can sag by giving in on the edge. Further filling with granular material leads to the fact that the wrapping gradually against the Bottom and the wall of the displacement pipe is pressed, by holding on the upper edge of the wrapper is made sure that this is under more or less There is tension.
- the level of the filled material is slightly below that upper edge of the displacement pipe, in any case above the level of the first Layer.
- the displacement tube is then pulled out. This happens under compression of the filled material.
- the compression can either be done exclusively by the Vibration of the drawn out displacement pipe and / or by application conventional compaction techniques. A corresponding expansion takes place the column formed in this way, with an additional expansion horizontally or happens radially in that the material of the envelope accordingly yields to its stress-strain curve.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Rod-Shaped Construction Members (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Fencing (AREA)
- Foundations (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer Bodensäule zur Abtragung von Bauwerks- und Verkehrslasten nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for producing a soil column for Deduction of building and traffic loads according to the preamble of the claim 1.
Aus DE 195 18 830 ist das eingangs genannte Verfahren zur Stabilisierung des Untergrunds und zur Abtragung von Bauwerks- und Verkehrslasten bekannt geworden, bei dem an diskreten Stellen ein säulenförmiger Bereich nicht ausreichend tragfähigen Bodenmaterials ausgehoben wird, in das ausgehobene Loch eine Ummantelung aus dehnbarem, relativ zugfestem, filterartig wirkendem Material eingebracht wird. Die Ummantelung wird mit körnigem Material gefüllt, das anschließend verdichtet wird unter Aufweitung der Ummantelung derart, daß der umgebende Boden durch Teilverfestigung die Horizontalspannung auffängt. Die Umhüllung besteht aus flachem Material, insbesondere bewehrten oder unbewehrten Geotextilien. Das körnige Material ist ein hartes kornabgestuftes Material, wie Kiessand, Gestein, Brechkkorn, Schlacken, Bergematerial, Recyclingstoffe oder dgl., dem ggf. polymeres oder hydraulisch wirkendes Bindemittel zugesetzt sein kann. Das Verdichten des eingefüllten Materials erfolgt durch Rütteln, Vibrieren oder Schlagen der Schalung, ggf. auch mit Hilfe von Rammeinrichtungen oder dgl.DE 195 18 830 describes the method mentioned at the outset for stabilizing the subsurface and for the transfer of building and traffic loads a columnar area is not sufficiently stable at discrete points Soil material is excavated, a casing from the excavated hole stretchable, relatively tensile, filter-like material is introduced. The The casing is filled with granular material, which is then compressed with widening of the casing in such a way that the surrounding soil is partially solidified absorbs the horizontal tension. The wrapper is made of flat material, especially reinforced or unreinforced geotextiles. The granular material is a hard grain graded material such as gravel sand, stone, crushed grain, slag, Recovery material, recycled materials or the like, which may be polymeric or hydraulic Binder can be added. The filled material is compacted by shaking, vibrating or hitting the formwork, if necessary also with the help of Ramming devices or the like
Im nicht tragfähigen Boden entsteht so eine Materialsäule mit großer Steifigkeit, die in den tragfähigen Untergrund abgesetzt ist. Die Bauwerks- und Verkehrslasten werden zum einen in den tragfähigen Boden übertragen und zum anderen durch Lastabstrahlung in den umgebenden Boden aufgenommen. Der umgebende Boden wird bei dem beschriebenen Verfahren verdichtet und teilverfestigt und ist daher in der Lage, Horizontalkräfte aufzunehmen.A material column with great rigidity is created in the non-load-bearing floor is deposited in the stable subsurface. The building and traffic loads are on the one hand transferred to the load-bearing soil and on the other hand by load radiation absorbed into the surrounding soil. The surrounding floor is at compresses and partially solidifies the described method and is therefore able to Absorb horizontal forces.
Zur Herstellung einer Säule wird bei dem bekannten Verfahren so vorgegangen, daß ein Mantelrohr in den Boden eingetrieben und anschließend im Inneren geleert wird. Anschließend wird die Filterleerung aufweisende Umhüllung, die sich auf einem im Durchmesser kleineren Innenrohr befindet, in das Mantelrohr eingeführt. Das körnige Material wird in das Innenrohr eingegeben, wonach dann das Mantelrohr unter Verdichtungswirkung herausgerüttelt wird und anschließend auch das Innenrohr. Ein derartiges Verfahren führt zwar zu zufriedenstellenden Ergebnissen, ist jedoch verhältnismäßig aufwendig.To produce a column, the known process is carried out in such a way that a casing pipe is driven into the ground and then emptied inside. Then the filter emptying covering, which is on a in Smaller inner tube diameter is inserted into the jacket tube. The granular Material is fed into the inner tube, after which the jacket tube is compressed is shaken out and then also the inner tube. Such a thing The process leads to satisfactory results, but is proportionate consuming.
Aus GB-A-1 315 075 ist ein Verfahren zur Herstellung von Betonpfählen im Boden bekannt geworden. Ein nach unten offenes Rohr wird in den Boden eingetrieben und anschließend geleert. Dann wird eine Umhüllung eingegeben und eine Bewehrung eingeführt. Anschließend wird Beton eingefüllt und das Rohr allmählich herausgezogen, wobei die Betonfüllung eine Erweiterung der Umhüllung bewirkt in den umgebenen Boden hinein. Hierbei ergibt sich ein birnenförmiger erweiterter Betonpfahl.GB-A-1 315 075 describes a method for the production of concrete piles in the ground known. A downwardly open pipe is driven into the ground and then emptied. Then an envelope is entered and a reinforcement introduced. Then concrete is poured in and the pipe is gradually pulled out, whereby the concrete filling causes an expansion of the covering in the surrounding Floor into it. This results in a pear-shaped, expanded concrete pile.
Aus GB-A-410 280 ist ein ähnliches Verfahren bekannt geworden, bei dem ein spezielles Rütteln des Rohres und ziehen in vertikaler Richtung stattfindet mit dem Zweck, eine nach oben kontinuierliche Säule zu erhalten. Es soll vermieden werden, daß beim Ziehen der rohrartigen Schalung das Betonmaterial an der Rohrwandung hängen bleibt.From GB-A-410 280 a similar method has become known, in which a special one Shaking the tube and pulling in the vertical direction takes place with the purpose of to get an upward continuous column. It should be avoided that the Pull the tubular formwork to hang the concrete material on the pipe wall remains.
Aus US-A-3 805 535 ist ein Verfahren zur Herstellung einer Betonsäule mit einem erweiterten Fuß bekannt geworden. Zu diesem Zweck wird ein Verdrängungsrohr in den Erdboden eingetrieben. Das Rohr enthält bereits eine sackartige, nach unten offene Umhüllung, die an dem Boden des Verdrängungsrohrs festgehalten wird. Anschließend erfolgt das Einfüllen von Beton bei gleichzeitigem Hochziehen des Verdrängungsrohr, wobei der Verschluß im Erdboden verbleibt. Dadurch bildet sich unterhalb der Umhüllung ein erweiterter Betonfuß. Oberhalb des Fußes ist die Betonsäule von der Umhüllung umgeben, auch nachdem das Rohr herausgezogen worden ist.From US-A-3 805 535 is a method for producing a concrete column with a enlarged foot became known. For this purpose, a displacement pipe is placed in driven the earth. The tube already contains a sack-like, open at the bottom Envelope that is held to the bottom of the displacement tube. Subsequently concrete is poured while pulling up the displacement pipe, the closure remains in the ground. This forms an expanded concrete foot below the cladding. The concrete column is above the foot surrounded by the envelope even after the tube has been pulled out is.
Daher liegt der Erfindung die Aufgabe zugrunde, ein Verfahren zur Herstellung einer Bodensäule zur Abtragung von Bauwerks- und Verkehrslasten zu schaffen, das mit einem geringeren Aufwand ein Material durchgeführt werden kann und zu besonders günstigen Ergebnissen führt.The invention is therefore based on the object of a method for producing a Floor pillar for the transfer of building and traffic loads to create that with a material can be carried out with less effort and too special leads to favorable results.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.This object is achieved by the features of patent claim 1.
Bei dem Verfahren nach der Erfindung wird ebenfalls ein einzelnes Rohr verwendet, das als Verdrängungsrohr ausgebildet ist. Es hat z.B. einen Durchmesser von 0,8m. Es ist daher während des Eintreibens mit einem Verschluß versehen, so daß Boden nicht in das Innere des Verdrängungsrohres eindringt. Ökonomisch lassen sich Verdrängungsrohre nur bis zu einem bestimmten Durchmesser in den Boden rütteln.A single tube is also used in the method according to the invention, which is designed as a displacement tube. It has e.g. a diameter of 0.8m. It is therefore provided with a closure during driving so that the bottom does not penetrates into the interior of the displacement tube. Displacement pipes are economical only shake into the ground up to a certain diameter.
Verdrängungsrohre, deren unteres Ende z. B. von einer Klappe verschlossen wird, sind etwa aus DE 296 11 427 bekannt.Displacement pipes, the lower end of z. B. is closed by a flap, are known for example from DE 296 11 427.
Bei dem erfindungsgemäßen Verfahren wird die sackartige Umhüllung in das Verdrängungsrohr eingeführt, wobei der Durchmesser der sackartigen Umhüllung annähernd dem Innendurchmesser des Verdrängungsrohrs entspricht. Die sackartige Umhüllung hängt daher mehr oder weniger tief in das Verdrängungsrohr hinein und hat eine unregelmäßige, in diesem Fall noch nicht aufgeweitete Gestalt. Durch Einfüllen des körnigen Materials kann die sackartige Umhüllung jedoch bis zum Boden des Verdrängungsrohres, vorbewegt werden. Weiteres Auffüllen des körnigen Materials führt dazu, daß die sackartige Umhüllung sich allmählich vollständig gegen den Boden und die Wand des Verdrängungsrohres anlegt. Gegebenenfalls muß am oberen Ende der sackartigen Umhüllung, das aus dem oberen Ende des Mantelrohres herausragt, ständig für eine gewisse Spannung gesorgt werden, damit es nicht zu unnötigen Faltenbildungen kommt. Trotz der Spannung muß jedoch für eine Nachgiebigkeit gesorgt werden, damit eine satte Anlage der Umhüllung an den Boden (Verschluß) und an der Wand des Verdrängungsrohres gewährleistet ist. Nach dem Einfüllen des körnigen Materials und dem entsprechenden Auskleiden des Verdrängungsrohres mit der Umhüllung erfolgt dann ein Verdichten und ggf. gleichzeitiges Herausrütteln des Verdrängungsrohres, wobei nunmehr das untere Ende geöffnet ist. Werden zwei ein Dach bildende Klappen eingesetzt, geschieht dies automatisch. Es kann jedoch auch daran gedacht sein, eine sog. verlorene Spitze vorzusehen, die im Erdboden verbleibt, wenn das Verdrängungsrohr gezogen wird.In the method according to the invention, the bag-like covering is placed in the displacement tube introduced, the diameter of the bag-like envelope approximately corresponds to the inside diameter of the displacement pipe. The bag-like wrapping therefore hangs more or less deep into the displacement tube and has an irregular shape, in this case not yet expanded. By filling of the granular material, however, the sack-like covering can reach the bottom of the Displacement tube, be moved forward. Further filling of the granular material leads to the bag-like wrapping gradually completely against the ground and creates the wall of the displacement pipe. If necessary, must be at the top End of the sack-like covering, which protrudes from the upper end of the casing tube, A certain amount of tension must be constantly provided so that it is not unnecessary Wrinkles are coming. In spite of the tension, however, compliance must be ensured be so that a full contact of the wrapping to the bottom (closure) and is guaranteed on the wall of the displacement pipe. After filling the granular Material and the corresponding lining of the displacement tube with the The casing is then compacted and, if necessary, simultaneously shaken out of the displacement tube, the lower end is now open. Two become one roof forming flaps used, this happens automatically. However, it can also help be intended to provide a so-called lost tip that remains in the ground when the displacement pipe is pulled.
Durch das Eintreiben des Verdrängungsrohrs wird das umgebende Material bereits in einem gewissen Maße teilverdichtet. Durch das Verdichten des kömigen Materials in der Umhüllung, insbesondere beim Ziehen des Verdrängungsrohrs, erfolgt ein weiterer Verdichtungsschritt in dem Maß, daß wiederum ein Gleichgewicht hergestellt wird zwischen der Horizontalspannung der Säule nach außen und den Reaktionskräften im umgebenden Boden. Beim Ziehen des Mantelrohres aus dem Boden und gleichzeitigem Verdichten des körnigen Materials in der Umhüllung erfolgt auch ein horizontales oder radiales Aufweiten der Säule. Das intensive Verdichten des Füllmaterials führt im weiteren zu einer Dehnung des Geotextilmaterials, was eine zusätzliche horizontale Ausdehnung der Säule zur Folge hat. Der beschriebene Vorgang führt zu einer entsprechenden Verdichtung des umgebenden, sonst nicht tragfähigen Materials, bis ein Gleichgewicht entsteht zwischen den beim Verdichten aufgebrachten horizontalen Kräften und den erzeugten Gegenkräften im umgebenden Boden, wobei ein Teil der Spannungen, die durch das Verdichten gebildet werden, von dem Material der Umhüllung aufgefangen wird. Auf diese Weise ist eine Säule geschaffen, die auch bei sehr weichen nicht tragfähigen Böden eine wirksame Abtragung von Bauwerks- und Verkehrslasten gewährleistet.By driving in the displacement tube, the surrounding material is already in to some extent partially compressed. By compacting the granular material in the sheathing, in particular when pulling the displacement tube, is followed by another Compression step to the extent that an equilibrium is again established between the horizontal tension of the column to the outside and the reaction forces in the surrounding ground. When pulling the casing pipe out of the ground and at the same time The granular material in the casing is also compacted horizontally or radial expansion of the column. The intensive compression of the filling material further leads to an expansion of the geotextile material, which creates an additional horizontal Expansion of the column. The process described leads to a appropriate compression of the surrounding, otherwise unsustainable material until a balance is created between the horizontal ones applied during compaction Forces and the counterforce generated in the surrounding soil, part of the Stresses created by compression from the material of the casing is caught. In this way, a pillar is created that also at very soft, unsustainable soils effective removal of building and Traffic loads guaranteed.
Die auf diese Weise gebildeten Säulen sind so beschaffen, daß selbst bei einer horizontalen Auslenkung von Säulenabschnitten oder auch einer Spreizung der Säulen untereinander die Säule intakt bleibt.The pillars formed in this way are such that even with a horizontal one Deflection of column sections or a spreading of the columns among themselves the pillar remains intact.
Die Umhüllung besteht aus einem geeigneten Geotextilmaterial, z.B. aus einem Gewebe oder einem Gitter im Verbund mit Vliesstoff und ist durch ein Rundverfahren nahtlos hergestellt. Sie weist eine Kurzzeitfestigkeit von mindestens 50kN/n auf. The covering consists of a suitable geotextile material, e.g. from one fabric or a lattice in combination with nonwoven and is by a circular process seamlessly made. It has a short-term strength of at least 50 kN / n.
Ein Ausführungsbeispiel des erfindungsgemäßen Verfahrens wird näher erläutert.An embodiment of the method according to the invention is explained in more detail.
Ein Verdrängungsrohr, das beispielsweise einen Durchmesser von 0,8 m hat, wird in eine Bodenschicht eingetrieben ist, die aus nicht tragfähigem Material besteht. Das Verdrängungsrohr wird bis in eine tragfähige Schicht unterhalb der ersten Schicht vorgetrieben, beispielsweise in 1,5 m. Das Verdrängungsrohr erstreckt sich jedoch ein gewisses Maß oberhalb der ersten Schicht. Das Eintreiben erfolgt in bekannter Weise durch entsprechende Rüttelgeräte.A displacement pipe, which for example has a diameter of 0.8 m, is in a layer of soil is driven in, which consists of unsustainable material. The Displacement pipe is placed in a load-bearing layer below the first layer driven, for example in 1.5 m. However, the displacement pipe extends some measure above the first layer. The driving in takes place in a known manner with appropriate vibrators.
Eine sackartige Umhüllung im Rohr wird bis auf das Niveau der tragfähigen Schicht herabgelassen. Durch einfaches Herablassen der Umhüllung hängt diese mehr oder weniger ungeregelt im Inneren des Rohrs, wobei das Ende um den Rand des Verdrängungsrohrs herumgelegt und durch geeignete Mittel festgehalten wird. Anschließend wird körniges tragfähiges nicht abbindendes Material eingefüllt. Das Einfüllen der ersten Mengen führt dazu, daß die Umhüllung unter vertikaler Spannung gespannt wird, so daß sie durch Nachgeben am Rand absacken kann. Weiteres Auffiillen mit körnigem Material führt dazu, daß die Umhüllung nach und nach gegen den Boden und die Wand des Verdrängungsrohrs angedrückt wird, wobei durch Festhalten des oberen Randes der Umhüllung dafür gesorgt wird, daß diese unter mehr oder weniger Spannung steht. Das Niveau des eingefüllten Materials ist etwas unterhalb der oberen Kante des Verdrängungsrohres, in jedem Fall oberhalb des Niveaus der ersten Schicht.A sack-like covering in the pipe is down to the level of the load-bearing layer lowered. By simply lowering the covering, it hangs more or less unregulated inside the tube, with the end around the edge of the displacement tube laid around and held by suitable means. Subsequently granular, load-bearing, non-setting material is filled in. The Filling the first batches causes the wrapper to be under vertical tension is tensioned so that it can sag by giving in on the edge. Further filling with granular material leads to the fact that the wrapping gradually against the Bottom and the wall of the displacement pipe is pressed, by holding on the upper edge of the wrapper is made sure that this is under more or less There is tension. The level of the filled material is slightly below that upper edge of the displacement pipe, in any case above the level of the first Layer.
Das Verdrängungsrohr wird dann herausgezogen. Dies geschieht unter Verdichtung des eingefüllten Materials. Die Verdichtung kann entweder ausschließlich durch die Vibration des herausgezogenen Verdrängungsrohrs erfolgen und/oder durch Anwendung herkömmlicher Verdichtungstechniken. Es erfolgt eine entsprechende Aufweitung der auf diese Weise gebildeten Säule, wobei eine zusätzliche Aufweitung horizontal oder radial dadurch geschieht, daß das Material der Umhüllung entsprechend seiner Spannungs-Dehnungs-Kennlinie nachgibt. Nach dem vollständigen Herausziehen des Verdrängungsrohrs und entsprechender Verdichtung ergibt sich eine Bodensäule, deren oberes Ende mit dem Niveau der ersten Schicht übereinstimmt. Sie dient zur Abtragung von Bauwerks- und Verkehrslasten gemeinsam mit weiteren nicht gezeigten Bodensäulen, die nach einem bestimmten Raster erstellt sind.The displacement tube is then pulled out. This happens under compression of the filled material. The compression can either be done exclusively by the Vibration of the drawn out displacement pipe and / or by application conventional compaction techniques. A corresponding expansion takes place the column formed in this way, with an additional expansion horizontally or happens radially in that the material of the envelope accordingly yields to its stress-strain curve. After pulling it out completely of the displacement pipe and the corresponding compaction results in a floor column, the upper end of which corresponds to the level of the first layer. she serves for the transfer of building and traffic loads together with others not shown Floor columns that are created according to a certain grid.
Aufgrund der Verdichtung des Materials wird eine Kraft auf das umgebende Material ausgeübt wird. Das umgebende Material wird seinerseits verdichtet und baut eine Reaktionskraft auf. Nach der endgültigen Erstellung der Säule sind die Kräfte im Gleichgewicht, wobei ein Teil der Kräfte durch die Spannung der Umhüllung aufgefangen werden kann.Due to the compression of the material, a force is exerted on the surrounding material is exercised. The surrounding material is compressed and builds a reaction force on. After the final construction of the column, the forces are in balance, some of the forces being absorbed by the tension of the casing can be.
Claims (2)
- A method for producing of a ground column to support building or travelling loads, wherein an individual tubular casing is driven into the ground into a stationary region, a sheathing made of geo-textile material is inserted into the tubular casing and is filled with a good bearing, granulated, non-setting material, the good bearing material is compacted and the formwork is removed subsequently, characterized in that a single displacement tube closed by an openable closure at the lower end is driven into the ground, in that a sack-like sheathing manufactured in a circular weaving technique having a short-term strength of at least 50 kN/m is introduced into the displacement tube, the sheathing having a diameter approximately equal to the inside diameter of the displacement tube, in that the granulated material, while the sheating is being introduced, progressively presses against the stationary supporting layer left behind and the inner wall of the tubular casing, and in that the displacement tube is pulled out subsequently by means of a vibrator while the material is undergoing compaction with the lower tube end opened, and in that the sheathing is expanded beyond its original diameter until a balance is reached with the counterforce produced by the compacted ground surrounding it wherein the material of the sheathing is such that no surrounding ground penetrates into the column thus formed.
- The method according to claim 1, characterized in that the sheathing is made from a woven cloth or scrim cloth in a composite with a non-woven cloth.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97115299A EP0900883B1 (en) | 1997-09-04 | 1997-09-04 | Method for making a column in the ground, which can carry loads from buildings or traffic |
| DE59706689T DE59706689D1 (en) | 1997-09-04 | 1997-09-04 | Process for the production of a floor pillar for the removal of building or traffic loads |
| DK97115299T DK0900883T3 (en) | 1997-09-04 | 1997-09-04 | Method of manufacturing a ground post for carrying loads from buildings and traffic |
| NL1010001A NL1010001C2 (en) | 1997-09-04 | 1998-09-02 | Method and casing for the production of a ground column for absorbing the pressure of construction and traffic works. |
| PCT/EP1998/005580 WO1999011870A1 (en) | 1997-09-04 | 1998-09-03 | Method and sheathing for producing a ground column to support building or travelling loads |
| EP98951345A EP1009884B1 (en) | 1997-09-04 | 1998-09-03 | Method and sheathing for producing a ground column to support building or travelling loads |
| DK98951345T DK1009884T3 (en) | 1997-09-04 | 1998-09-03 | Method and enclosure for producing an earth column to support building or transport loads |
| DE59801707T DE59801707D1 (en) | 1997-09-04 | 1998-09-03 | METHOD AND ENVIRONMENT FOR THE PRODUCTION OF A PILLAR FOR THE REMOVAL OF CONSTRUCTION OR TRAFFIC LOADS |
| AT98951345T ATE206787T1 (en) | 1997-09-04 | 1998-09-03 | METHOD AND COVERING FOR PRODUCING A FLOOR COLUMN TO TRANSFER STRUCTURAL OR TRAFFIC LOADS |
| AU97410/98A AU9741098A (en) | 1997-09-04 | 1998-09-03 | Method and sheathing for producing a ground column to support building or travelling loads |
| HK99103936A HK1020443A1 (en) | 1997-09-04 | 1999-09-09 | Method for making a column in the ground, which can carry loads from building or traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97115299A EP0900883B1 (en) | 1997-09-04 | 1997-09-04 | Method for making a column in the ground, which can carry loads from buildings or traffic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0900883A1 EP0900883A1 (en) | 1999-03-10 |
| EP0900883B1 true EP0900883B1 (en) | 2002-03-20 |
Family
ID=8227314
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97115299A Expired - Lifetime EP0900883B1 (en) | 1997-09-04 | 1997-09-04 | Method for making a column in the ground, which can carry loads from buildings or traffic |
| EP98951345A Expired - Lifetime EP1009884B1 (en) | 1997-09-04 | 1998-09-03 | Method and sheathing for producing a ground column to support building or travelling loads |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98951345A Expired - Lifetime EP1009884B1 (en) | 1997-09-04 | 1998-09-03 | Method and sheathing for producing a ground column to support building or travelling loads |
Country Status (8)
| Country | Link |
|---|---|
| EP (2) | EP0900883B1 (en) |
| AT (1) | ATE206787T1 (en) |
| AU (1) | AU9741098A (en) |
| DE (2) | DE59706689D1 (en) |
| DK (2) | DK0900883T3 (en) |
| HK (1) | HK1020443A1 (en) |
| NL (1) | NL1010001C2 (en) |
| WO (1) | WO1999011870A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012004980A1 (en) | 2012-02-25 | 2013-08-29 | Werner Möbius Engineering GmbH | Method for stabilizing subsoil of road and building, for use in removal of e.g. building load in stable region, involves compressing and moving jacket tube to floor material installation site, while holding sheath at lower end of soil |
| DE102012022164A1 (en) | 2012-05-09 | 2013-11-14 | Werner Möbius Engineering GmbH | Structural system for diverting vertical and horizontal loads from elongated building areas to less stable ground, has soil columns, which are covered with geotextile material and form multiple linked systems by connecting elements |
| DE102015105780B4 (en) | 2015-04-15 | 2018-08-23 | Werner Möbius Engineering GmbH | Method of stabilizing the subsurface and removing structural and traffic loads in stable areas |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1014185C2 (en) * | 2000-01-26 | 2001-07-27 | Trisoplast Int Bv | Method for applying a moisture-impermeable layer in the soil, as well as a trench obtained by such a method. |
| DE10025966C2 (en) * | 2000-05-25 | 2002-12-05 | Bauer Spezialtiefbau | Support tube columns |
| DE10108602A1 (en) | 2001-02-22 | 2002-09-12 | Keller Grundbau Gmbh | Method of making columns |
| DE20120859U1 (en) * | 2001-12-27 | 2003-05-08 | Kirchner Martin E | Apparatus for manufacturing rubble columns in the ground with textile cladding |
| DE10351956B3 (en) * | 2003-11-07 | 2005-07-14 | Josef Möbius Bau-Aktiengesellschaft | Device for extracting earth material from pipe driven into soil has flaps held by cable extending from one end of gripper pipe to other connected to actuator so this lowers cable and flaps drop to outlet position under pressure of soil |
| DE102004013275B4 (en) * | 2004-03-16 | 2007-02-15 | Josef Möbius Bau-Aktiengesellschaft | Process for the production of an interactive load-bearing system made of geotextile-coated columns of granular material and the upcoming floors for the removal of building and traffic loads with unsustainable subsoil |
| GB0414300D0 (en) * | 2004-06-25 | 2004-07-28 | Keller Ground Engineering | Method and structure for ground improvement |
| DE102006033957B4 (en) * | 2006-07-22 | 2010-04-15 | Josef Möbius Bau-Aktiengesellschaft | Method for creating geotextile coated pillars of granular or rolling material |
| CN102505682A (en) * | 2011-10-31 | 2012-06-20 | 山东鸿泰建设集团有限公司 | Building waste powder cement pile and foundation treatment method thereof |
| DE102015122202B4 (en) | 2015-10-22 | 2019-03-28 | Peter Wallis | Device for introducing a column element |
| CN112030649A (en) * | 2020-09-07 | 2020-12-04 | 中国电建市政建设集团有限公司 | CFG pile-forming construction method suitable for fluid plastic soil layer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB410280A (en) * | 1932-02-06 | 1934-05-17 | Nagel Friedrich | Improvements in and relating to the making of concrete and like piles |
| LU41005A1 (en) * | 1961-01-11 | 1962-02-23 | ||
| FR2079878A5 (en) * | 1970-02-16 | 1971-11-12 | Rhodiaceta | |
| NL140592B (en) * | 1971-06-25 | 1973-12-17 | Nederhorst Grondtechniek B V | METHOD AND EQUIPMENT FOR FORMING A BODY OF CONCRETE OR SIMILAR MATERIAL IN THE GROUND, AS WELL AS A BODY THEREFORE. |
| NL9200855A (en) * | 1992-05-14 | 1993-12-01 | Colijn Beheer Bv | METHOD FOR THE VIBRATION-FREE MANUFACTURE OF A GROUND-REPLACING FOUNDATION POLE |
| DE19518830B4 (en) * | 1994-03-10 | 2005-02-24 | Josef Möbius Bau-Gesellschaft (GmbH & Co.) | Method of stabilising underground below roads and buildings - involves column excavation replaced by geo-textile load-bearing casing for dewatering and compacting in-situ with resultant ground load absorption |
| DE4408173C5 (en) | 1994-03-10 | 2006-04-27 | Josef Möbius Bau-Gesellschaft (GmbH & Co.) | Method of stabilizing the substrate and removing structural and traffic loads |
-
1997
- 1997-09-04 EP EP97115299A patent/EP0900883B1/en not_active Expired - Lifetime
- 1997-09-04 DE DE59706689T patent/DE59706689D1/en not_active Expired - Lifetime
- 1997-09-04 DK DK97115299T patent/DK0900883T3/en active
-
1998
- 1998-09-02 NL NL1010001A patent/NL1010001C2/en not_active IP Right Cessation
- 1998-09-03 DE DE59801707T patent/DE59801707D1/en not_active Expired - Fee Related
- 1998-09-03 DK DK98951345T patent/DK1009884T3/en active
- 1998-09-03 AT AT98951345T patent/ATE206787T1/en not_active IP Right Cessation
- 1998-09-03 AU AU97410/98A patent/AU9741098A/en not_active Abandoned
- 1998-09-03 EP EP98951345A patent/EP1009884B1/en not_active Expired - Lifetime
- 1998-09-03 WO PCT/EP1998/005580 patent/WO1999011870A1/en active IP Right Grant
-
1999
- 1999-09-09 HK HK99103936A patent/HK1020443A1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012004980A1 (en) | 2012-02-25 | 2013-08-29 | Werner Möbius Engineering GmbH | Method for stabilizing subsoil of road and building, for use in removal of e.g. building load in stable region, involves compressing and moving jacket tube to floor material installation site, while holding sheath at lower end of soil |
| DE102012022164A1 (en) | 2012-05-09 | 2013-11-14 | Werner Möbius Engineering GmbH | Structural system for diverting vertical and horizontal loads from elongated building areas to less stable ground, has soil columns, which are covered with geotextile material and form multiple linked systems by connecting elements |
| DE102015105780B4 (en) | 2015-04-15 | 2018-08-23 | Werner Möbius Engineering GmbH | Method of stabilizing the subsurface and removing structural and traffic loads in stable areas |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999011870A1 (en) | 1999-03-11 |
| EP0900883A1 (en) | 1999-03-10 |
| EP1009884B1 (en) | 2001-10-10 |
| DE59801707D1 (en) | 2001-11-15 |
| AU9741098A (en) | 1999-03-22 |
| NL1010001C2 (en) | 1999-06-23 |
| ATE206787T1 (en) | 2001-10-15 |
| NL1010001A1 (en) | 1999-03-05 |
| DK0900883T3 (en) | 2002-07-15 |
| DE59706689D1 (en) | 2002-04-25 |
| EP1009884A1 (en) | 2000-06-21 |
| HK1020443A1 (en) | 2000-04-20 |
| DK1009884T3 (en) | 2001-11-19 |
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