EP1519000A1 - Displacement drilling tool and method of use - Google Patents

Displacement drilling tool and method of use Download PDF

Info

Publication number
EP1519000A1
EP1519000A1 EP04020562A EP04020562A EP1519000A1 EP 1519000 A1 EP1519000 A1 EP 1519000A1 EP 04020562 A EP04020562 A EP 04020562A EP 04020562 A EP04020562 A EP 04020562A EP 1519000 A1 EP1519000 A1 EP 1519000A1
Authority
EP
European Patent Office
Prior art keywords
drill string
displacer
drilling tool
head
ground
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.)
Granted
Application number
EP04020562A
Other languages
German (de)
French (fr)
Other versions
EP1519000B1 (en
Inventor
Erwin Emil Stötzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
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 Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Publication of EP1519000A1 publication Critical patent/EP1519000A1/en
Application granted granted Critical
Publication of EP1519000B1 publication Critical patent/EP1519000B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • E02D5/72—Pile shoes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/26—Drilling without earth removal, e.g. with self-propelled burrowing devices

Definitions

  • the invention relates firstly to a drilling tool for displacement drilling in the ground, with a drill string, at the bottom End of a displacer head is releasably attached.
  • the invention a method for displacement drilling in Floor, in which a displacer, which at a lower End of a drill string is releasably secured, under displacement from soil material in the ground to a designated Depth is introduced, in which the drill string from the displacer head is released and withdrawn from the ground.
  • Such a method is also called positive displacement drilling lost displacer known.
  • the displacer remains doing so in the ground and forms the footprint for a above it produced concrete or stabilizing column. For this is generated after retraction of the drill string in the Drilling hole concrete or other contents introduced.
  • the problem is that at certain soil conditions no stable borehole wall is produced. That is, soil material can be filled before filling of the borehole produced from the borehole wall down fall. This soil material is present in the concrete or stabilizing column defects that the Detriment to the carrying capacity of the column produced.
  • the invention has for its object to provide a drilling tool and a method for positive displacement drilling in the ground, with which holes can be produced with a particularly stable borehole.
  • the drilling tool according to the invention is characterized that the lower end of the drill string as a displacement area is formed, which opposite to the adjacent Bohrstrang Scheme is widened. After loosening the displacer head can thus trained at the lower end of the drill string expanded displacement area again for smoothing contribute to the borehole wall when retracting the drill string.
  • the displacer from above displaced soil material displaced into the borehole wall become. This prevents on the one hand prevents unwanted Soil in the cavity of the borehole to be filled accumulates. On the other hand, this leads to additional displacement of soil material in the borehole wall during retraction of the drill string for additional compaction and consolidation and thus stabilization of the borehole wall.
  • the displacer area can basically have different shapes, about a purely conical or a spherical shape, have. According to the invention however, it is preferred that the displacement area a cylindrical segment which gradually, especially conical, in the adjacent drill string area passes. A cylindrical segment can be manufactured realize particularly cost-effective. In addition, over the entire length of the cylinder segment a uniform displacement effect achieved. In addition to a purely conical shape of the Transition area to the displacement area can also be another continuous curved course, such as arcuate or quarter-circular, be provided.
  • the displacer head has an outer spiral.
  • the displacer head can thereby be screwed into the ground, which a particularly good displacement effect can be achieved.
  • the displacer head can be made not only of steel but also of Plastic, fiber concrete or other suitable material be.
  • the displacement area on the drill string has an outer diameter, which equal to or smaller than the outside diameter of the outside spiral of the displacer head is.
  • the outer diameter of the displacer area by up to 10 to 20% less than the outer diameter of the outer spiral.
  • a further improvement of the compression effect is achieved according to the invention achieved in that at the drill string area, which adjoins the displacer area, a Bohrstrangchtl is trained. Through this drill string spiral can of above falling material at a corresponding rotational movement the drill string targeted promoted in the displacement become.
  • the drill string helix opposite to the outer spiral of the displacer head is winding. In this way, at an opposite Rotation of the drill string when retracting the penetration process, the desired conveying effect to the displacement be achieved.
  • the drill string for introducing a filling is tubular.
  • the contents can through the inner cavity already during retraction of the drill string be filled so that thereby a support of the Borehole wall is reached.
  • the method according to the invention is characterized that at the lower end of the drill string a displacement area is formed, with which when retracting the drill string From above coming drilling material is displaced laterally.
  • the Displacer To produce the borehole, it is preferred that on the Displacer an outer spiral is formed, wherein the Drill strand turned in one direction when placed in the ground becomes, in which the outside spiral soil material laterally and promotes upwards.
  • the displacer thus fulfills the significant compaction effect when screwed into the ground.
  • a preferred embodiment of the invention is that the displacer head by turning in opposite direction and / or by activating a release device from the drill string is solved.
  • a simple Screw connection between the displacer head and the drill string consist.
  • it can also be another connection device, such as a bayonet lock or a release device with a mechanical or electrical adjustment Block element consist, which is a reliable release of the Displacer head allowed by the drill string.
  • An additional compression is characterized according to the invention achieved that at the Bohrstrang Symposium, which at the Verdränger Symposium adjacent, a Bohrstrangplanetaryl formed is, wherein when retracting the drill string in one direction is rotated, in which the Bohrstrangplanetaryl come from above promotes the soil material in the displacement area. in this connection can come from above of the soil material also in a relative narrow gap between the displacer area and the borehole wall be pressed.
  • the generated wellbore be retracted of the drill string is filled with a filling material. In this way, the borehole wall at any time by the Drilling tool or the product itself reliably supported.
  • the single drawing shows a side view of an inventive Drilling tool 10.
  • the drilling tool 10 has a conical for positive displacement drilling Displacer 40, on the outside of an outer coil 42 is formed.
  • a conical for positive displacement drilling Displacer 40 On the outside of an outer coil 42 is formed.
  • peg-shaped Carrier 44 is formed, which in corresponding recesses 34 engage the lower end of the drill string 20.
  • the tubular drill string 20 has at its lower End of a widened displacement area 30, which via a cone 32 in an adjacent drill string area 22 having a substantially constant outer diameter passes.
  • a Bohrstranglingerl 24 formed whose maximum outer diameter about the outer diameter of the widened cylindrical trained displacer 30 corresponds.
  • the Bohrstrangchtl 24 extends to the cylindrical Range of the displacer 30 and runs in the section of the cone 32 gradually.
  • the displacer head 40 in its upper region a base cylinder 46 with a Outer diameter, which corresponds to the outer diameter of the displacement 30 corresponds.
  • the opposite projecting Outer spirals 42 of the displacer 40 produce during displacement drilling a fault zone in the borehole wall.
  • the drill string 20 After loosening from the displacer 40 at a designated final depth of Drill hole is the drill string 20 with opposite rotation slowly pulled out of the hole.
  • Soil material from the fault zone of the borehole wall is about the drill string helix 24 down to the displacer 30th promoted. Due to the outside diameter of the displacer area 30, the soil material in the borehole wall, in particular into the fault zone of the borehole wall, displaced.
  • the borehole wall is smoothed and in addition compacted. At the same time it prevents soil material accumulates on the lost displacer 40 and flaws forms in a concrete column to be produced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Piles And Underground Anchors (AREA)
  • Soil Working Implements (AREA)
  • Drilling And Boring (AREA)

Abstract

An earth drill has a helical thread and shank that widens (32) to a larger diameter section (30) that terminates in a detachable cutting tip (46). After drilling to the required depth, the shank is detached from the cutting tip and withdrawn, thereby displacing the loose soil.

Description

Die Erfindung betrifft zum einen ein Bohrwerkzeug zum Verdrängungsbohren im Boden, mit einem Bohrstrang, an dessen unterem Ende ein Verdrängerkopf lösbar befestigt ist. Zum anderen betrifft die Erfindung ein Verfahren zum Verdrängungsbohren im Boden, bei dem ein Verdrängerkopf, welcher an einem unteren Ende eines Bohrstranges lösbar befestigt ist, unter Verdrängung von Bodenmaterial in den Boden bis zu einer vorgesehenen Tiefe eingebracht wird, in welcher der Bohrstrang vom Verdrängerkopf gelöst und aus dem Boden zurückgezogen wird.The invention relates firstly to a drilling tool for displacement drilling in the ground, with a drill string, at the bottom End of a displacer head is releasably attached. On the other hand the invention a method for displacement drilling in Floor, in which a displacer, which at a lower End of a drill string is releasably secured, under displacement from soil material in the ground to a designated Depth is introduced, in which the drill string from the displacer head is released and withdrawn from the ground.

Ein derartiges Verfahren ist auch als Verdrängungsbohren mit verlorenem Verdrängerkopf bekannt. Der Verdrängerkopf verbleibt dabei im Boden und bildet die Aufstandsfläche für eine darüber hergestellte Beton- oder Stabilisierungssäule. Hierzu wird nach dem Zurückziehen des Bohrstranges in das erzeugte Bohrloch Beton oder ein anderes Füllgut eingeleitet.Such a method is also called positive displacement drilling lost displacer known. The displacer remains doing so in the ground and forms the footprint for a above it produced concrete or stabilizing column. For this is generated after retraction of the drill string in the Drilling hole concrete or other contents introduced.

Bei diesem bekannten Verfahren besteht das Problem, dass bei bestimmten Bodenverhältnissen keine stabile Bohrlochwandung erzeugt wird. Das heißt, Bodenmaterial kann vor dem Befüllen des erzeugten Bohrloches von der Bohrlochwandung nach unten fallen. Dieses Bodenmaterial stellt in der zu erzeugenden Beton- oder Stabilisierungssäule Fehlstellen dar, welche die Tragfähigkeit der erzeugten Säule beeinträchtigen.In this known method, the problem is that at certain soil conditions no stable borehole wall is produced. That is, soil material can be filled before filling of the borehole produced from the borehole wall down fall. This soil material is present in the concrete or stabilizing column defects that the Detriment to the carrying capacity of the column produced.

Der Erfindung liegt die Aufgabe zugrunde, ein Bohrwerkzeug und ein Verfahren zum Verdrängungsbohren im Boden anzugeben, mit welchen Bohrlöcher mit einer besonders stabilen Bohrlochwandung erzeugt werden können. The invention has for its object to provide a drilling tool and a method for positive displacement drilling in the ground, with which holes can be produced with a particularly stable borehole.

Die Aufgabe wird erfindungsgemäß zum einen durch ein Bohrwerkzeug mit den Merkmalen des Anspruchs 1 und zum anderen mit einem Verfahren mit den Merkmalen des Anspruchs 9 gelöst. Bevorzugte Ausführungsformen der Erfindung sind in den jeweiligen abhängigen Ansprüchen angegeben.The object is achieved on the one hand by a drilling tool with the features of claim 1 and the other with a Method solved with the features of claim 9. preferred Embodiments of the invention are in the respective specified dependent claims.

Das erfindungsgemäße Bohrwerkzeug ist dadurch gekennzeichnet, dass das untere Ende des Bohrstranges als ein Verdrängerbereich ausgebildet ist, welcher gegenüber dem angrenzenden Bohrstrangbereich aufweitet ist. Nach dem Lösen des Verdrängerkopfes kann somit der am unteren Ende des Bohrstranges ausgebildete aufgeweitete Verdrängerbereich nochmals zur Glättung der Bohrlochwandung beim Zurückziehen des Bohrstranges beitragen. Insbesondere kann durch den Verdrängerbereich von oben nachfallendes Bodenmaterial in die Bohrlochwandung verdrängt werden. Hierdurch wird einerseits verhindert, dass sich unerwünschtes Bodenmaterial im zu verfüllenden Hohlraum des Bohrloches ansammelt. Andererseits führt das zusätzliche Verdrängen von Bodenmaterial in die Bohrlochwandung beim Zurückziehen des Bohrstranges zu einer zusätzlichen Verdichtung und Verfestigung und damit Stabilisierung der Bohrlochwandung.The drilling tool according to the invention is characterized that the lower end of the drill string as a displacement area is formed, which opposite to the adjacent Bohrstrangbereich is widened. After loosening the displacer head can thus trained at the lower end of the drill string expanded displacement area again for smoothing contribute to the borehole wall when retracting the drill string. In particular, by the displacer from above displaced soil material displaced into the borehole wall become. This prevents on the one hand prevents unwanted Soil in the cavity of the borehole to be filled accumulates. On the other hand, this leads to additional displacement of soil material in the borehole wall during retraction of the drill string for additional compaction and consolidation and thus stabilization of the borehole wall.

Der Verdrängerbereich kann grundsätzlich verschiedene Formen, etwa eine rein konische oder eine ballige Form, aufweisen. Erfindungsgemäß ist es jedoch bevorzugt, dass der Verdrängerbereich ein zylindrisches Segment aufweist, welches allmählich, insbesondere konisch, in den angrenzenden Bohrstrangbereich übergeht. Ein zylindrisches Segment lässt sich fertigungstechnisch besonders kostengünstig verwirklichen. Zudem wird über die gesamte Länge des Zylindersegmentes eine gleichmäßige Verdrängungswirkung erzielt. Neben einer rein konischen Form des Übergangsbereiches zum Verdrängerbereich kann auch ein anderer stetiger kurvenförmiger Verlauf, etwa bogenförmig oder viertelkreisförmig, vorgesehen sein.The displacer area can basically have different shapes, about a purely conical or a spherical shape, have. According to the invention However, it is preferred that the displacement area a cylindrical segment which gradually, especially conical, in the adjacent drill string area passes. A cylindrical segment can be manufactured realize particularly cost-effective. In addition, over the entire length of the cylinder segment a uniform displacement effect achieved. In addition to a purely conical shape of the Transition area to the displacement area can also be another continuous curved course, such as arcuate or quarter-circular, be provided.

Für eine gute Verdrängerwirkung ist es erfindungsgemäß, dass der Verdrängerkopf eine Außenwendel aufweist. Der Verdrängerkopf kann hierdurch in den Boden eingeschraubt werden, wodurch sich eine besonders gute Verdrängungswirkung erzielen lässt. Der Verdrängerkopf kann nicht nur aus Stahl sondern auch aus Kunststoff, Faserbeton oder einem anderen geeigneten Material sein.For a good Verdrängerwirkung it is according to the invention that the displacer head has an outer spiral. The displacer head can thereby be screwed into the ground, which a particularly good displacement effect can be achieved. The displacer head can be made not only of steel but also of Plastic, fiber concrete or other suitable material be.

Nach der Erfindung ist es von Vorteil, das der Verdrängerbereich am Bohrstrang einen Außendurchmesser aufweist, welcher gleich oder kleiner als der Außendurchmesser der Außenwendel des Verdrängerkopfes ist. Vorzugsweise ist der Außendurchmesser des Verdrängerbereiches um bis zu 10 bis 20 % kleiner als der Außendurchmesser der Außenwendel. Auch bei diesem Untermaß wird eine gute Glättung und Verdichtung der Bohrlochwandung erzeugt, welche aufgrund der Einschraubbewegung des Verdrängerkopfes Ungleichmäßigkeiten aufweist. Eine besonders gute Verdichtungswirkung wird erfindungsgemäß dadurch erzielt, dass der Außendurchmesser des Verdrängerbereiches etwa dem Außendurchmesser der Außenwendel des Verdrängerkopfes entspricht.According to the invention, it is advantageous that the displacement area on the drill string has an outer diameter, which equal to or smaller than the outside diameter of the outside spiral of the displacer head is. Preferably, the outer diameter of the displacer area by up to 10 to 20% less than the outer diameter of the outer spiral. Even with this undersize will be a good smoothing and compaction of the borehole wall generated, which due to the screwing of the displacer head Has irregularities. A particularly good one Compaction effect is achieved according to the invention in that the outer diameter of the displacer area approximately the outer diameter the outer spiral of the displacer corresponds.

Eine weitere Verbesserung der Verdichtungswirkung wird erfindungsgemäß dadurch erreicht, dass an dem Bohrstrangbereich, welcher an den Verdrängerbereich angrenzt, eine Bohrstrangwendel ausgebildet ist. Durch diese Bohrstrangwendel kann von oben nachfallendes Material bei einer entsprechenden Drehbewegung des Bohrstranges gezielt in den Verdrängerbereich gefördert werden.A further improvement of the compression effect is achieved according to the invention achieved in that at the drill string area, which adjoins the displacer area, a Bohrstrangwendel is trained. Through this drill string spiral can of above falling material at a corresponding rotational movement the drill string targeted promoted in the displacement become.

Weiter ist es nach der Erfindung bevorzugt, dass die Bohrstrangwendel entgegengesetzt zur Außenwendel des Verdrängerkopfes gewunden ist. Auf diese Weise kann bei einer entgegengesetzten Drehung des Bohrstranges beim Zurückziehen gegenüber dem Eindringvorgang die gewünschte Förderwirkung zum Verdrängerbereich erzielt werden.Further, it is preferred according to the invention that the drill string helix opposite to the outer spiral of the displacer head is winding. In this way, at an opposite Rotation of the drill string when retracting the penetration process, the desired conveying effect to the displacement be achieved.

Zur Erzeugung besonders stabiler Gründungssäulen im Boden ist es erfindungsgemäß, dass an dem Verdrängerkopf Armierungselemente befestigbar sind. Dies können Stahlseile oder Metallstangen sein, welche beispielsweise in einer Betonsäule eine Armierung darstellen.To produce particularly stable foundation columns in the ground according to the invention, that at the displacer reinforcing elements are fastened. These can be steel cables or metal bars which, for example, in a concrete column a Represent reinforcement.

Zum Verfüllen des erzeugten Bohrloches ist es nach der Erfindung vorgesehen, dass der Bohrstrang zum Einleiten eines Füllgutes rohrförmig ausgebildet ist. Somit kann das Füllgut durch den inneren Hohlraum bereits beim Zurückziehen des Bohrstranges eingefüllt werden, so dass hierdurch eine Abstützung der Bohrlochwandung erreicht wird.To fill the borehole produced it is according to the invention provided that the drill string for introducing a filling is tubular. Thus, the contents can through the inner cavity already during retraction of the drill string be filled so that thereby a support of the Borehole wall is reached.

Das erfindungsgemäße Verfahren ist dadurch gekennzeichnet, dass am unteren Ende des Bohrstranges ein Verdrängerbereich ausgebildet ist, mit welchem beim Zurückziehen des Bohrstranges von oben kommendes Bohrmaterial seitlich verdrängt wird. Mit diesem Verfahren lassen sich die vorbeschriebenen Vorteile einer stabilen Bohrlochwandung erreichen.The method according to the invention is characterized that at the lower end of the drill string a displacement area is formed, with which when retracting the drill string From above coming drilling material is displaced laterally. With this method, the advantages described above can be reach a stable borehole wall.

Zur Erzeugung des Bohrloches ist es bevorzugt, dass an dem Verdrängerkopf eine Außenwendel ausgebildet ist, wobei der Bohrstrang beim Einbringen in den Boden in eine Richtung gedreht wird, in welcher die Außenwendel Bodenmaterial seitlich und nach oben fördert. Der Verdrängerkopf erfüllt somit die wesentliche Verdichtungswirkung beim Eindrehen in den Boden.To produce the borehole, it is preferred that on the Displacer an outer spiral is formed, wherein the Drill strand turned in one direction when placed in the ground becomes, in which the outside spiral soil material laterally and promotes upwards. The displacer thus fulfills the significant compaction effect when screwed into the ground.

Eine bevorzugte Weiterbildung der Erfindung besteht darin, dass der Verdrängerkopf durch Drehen in entgegengesetzte Richtung und/oder durch Aktivieren einer Löseeinrichtung vom Bohrstrang gelöst wird. Im ersteren Fall kann eine einfache Schraubverbindung zwischen dem Verdrängerkopf und dem Bohrstrang bestehen. Es kann jedoch auch eine andere Verbindungseinrichtung, etwa ein Bajonettverschluss oder eine Löseeinrichtung mit einem mechanisch oder elektrisch zu verstellenden Sperrelement bestehen, welches ein zuverlässiges Lösen des Verdrängerkopfes vom Bohrstrang erlaubt.A preferred embodiment of the invention is that the displacer head by turning in opposite direction and / or by activating a release device from the drill string is solved. In the former case, a simple Screw connection between the displacer head and the drill string consist. However, it can also be another connection device, such as a bayonet lock or a release device with a mechanical or electrical adjustment Block element consist, which is a reliable release of the Displacer head allowed by the drill string.

Eine zusätzliche Verdichtung wird nach der Erfindung dadurch erreicht, dass an dem Bohrstrangbereich, welcher an den Verdrängerbereich angrenzt, eine Bohrstrangwendel ausgebildet ist, wobei beim Zurückziehen der Bohrstrang in eine Richtung gedreht wird, in welcher die Bohrstrangwendel von oben kommen des Bodenmaterial in den Verdrängerbereich fördert. Hierbei kann von oben kommen des Bodenmaterial auch in einen relativ engen Spalt zwischen den Verdrängerbereich und der Bohrlochwandung gepresst werden.An additional compression is characterized according to the invention achieved that at the Bohrstrangbereich, which at the Verdrängerbereich adjacent, a Bohrstrangwendel formed is, wherein when retracting the drill string in one direction is rotated, in which the Bohrstrangwendel come from above promotes the soil material in the displacement area. in this connection can come from above of the soil material also in a relative narrow gap between the displacer area and the borehole wall be pressed.

Zur Herstellung armierter Säulen im Boden ist es erfindungsgemäß, dass beim Zurückziehen Armierungselemente, welche am Verdrängerkopf befestigt sind, mit nach oben geführt werden.For producing reinforced columns in the soil, it is according to the invention that upon retraction reinforcing elements, which on Displacer are attached, are led upwards.

Weiter ist es bevorzugt, dass das erzeugte Bohrloch beim Zurückziehen des Bohrstranges mit einem Füllgut verfüllt wird. Auf diese Weise wird die Bohrlochwandung jederzeit durch das Bohrwerkzeug oder das Füllgut selbst zuverlässig abgestützt.Further, it is preferred that the generated wellbore be retracted of the drill string is filled with a filling material. In this way, the borehole wall at any time by the Drilling tool or the product itself reliably supported.

Die Erfindung wird nachfolgend anhand eines bevorzugten Ausführungsbeispiels näher erläutert, welches schematisch in der beigefügten Zeichnung dargestellt ist.The invention will be described below with reference to a preferred embodiment explained in more detail, which schematically in the attached drawing is shown.

Die einzige Zeichnung zeigt eine Seitenansicht eines erfindungsgemäßen Bohrwerkzeuges 10.The single drawing shows a side view of an inventive Drilling tool 10.

Das Bohrwerkzeug 10 weist zum Verdrängungsbohren einen konischen Verdrängerkopf 40 auf, an dessen Außenseite eine Außenwendel 42 ausgebildet ist. Zum Verbinden mit einem Bohrstrang 20 sind an der Oberseite des Verdrängerkopfes 40 zapfenförmige Mitnehmer 44 ausgebildet, welche in entsprechende Ausnehmungen 34 am unteren Ende des Bohrstranges 20 eingreifen.The drilling tool 10 has a conical for positive displacement drilling Displacer 40, on the outside of an outer coil 42 is formed. For connecting to a drill string 20 are at the top of the displacer 40 peg-shaped Carrier 44 is formed, which in corresponding recesses 34 engage the lower end of the drill string 20.

Der rohrförmig ausgebildete Bohrstrang 20 weist an seinem unteren Ende einen aufgeweiteten Verdrängerbereich 30 auf, welcher über einen Konus 32 in einen angrenzenden Bohrstrangbereich 22 mit einem im Wesentlichen konstanten Außendurchmesser übergeht. Am Außenumfang des Bohrstrangbereiches 22 ist eine Bohrstrangwendel 24 ausgebildet, deren maximaler Außendurchmesser etwa dem Außendurchmesser des aufgeweiteten zylindrisch ausgebildeten Verdrängerbereiches 30 entspricht. Die Bohrstrangwendel 24 erstreckt sich bis zu dem zylindrischen Bereich des Verdrängerkopfes 30 und läuft im Abschnitt des Konus 32 allmählich aus.The tubular drill string 20 has at its lower End of a widened displacement area 30, which via a cone 32 in an adjacent drill string area 22 having a substantially constant outer diameter passes. On the outer circumference of the drill string area 22 is a Bohrstrangwendel 24 formed whose maximum outer diameter about the outer diameter of the widened cylindrical trained displacer 30 corresponds. The Bohrstrangwendel 24 extends to the cylindrical Range of the displacer 30 and runs in the section of the cone 32 gradually.

Bei der dargestellten Ausführungsform weist der Verdrängerkopf 40 in seinem oberen Bereich einen Grundzylinder 46 mit einem Außendurchmesser auf, welcher dem Außendurchmesser des Verdrängerbereichs 30 entspricht. Die demgegenüber vorstehenden Außenwendeln 42 des Verdrängerkopfes 40 erzeugen beim Verdrängungsbohren eine Störzone in der Bohrlochwandung. Nach dem Lösen vom Verdrängerkopf 40 bei einer vorgesehenen Endtiefe des Bohrloches wird der Bohrstrang 20 bei entgegengesetzter Drehung langsam aus dem Bohrloch gezogen. Von oben nachfallendes Bodenmaterial aus der Störzone der Bohrlochwandung wird über die Bohrstrangwendel 24 nach unten zum Verdrängerbereich 30 gefördert. Aufgrund des Außendurchmessers des Verdrängerbereichs 30 wird das Bodenmaterial in die Bohrlochwandung, insbesondere in die Störzone der Bohrlochwandung, verdrängt. Hierdurch wird die Bohrlochwandung geglättet und zusätzlich verdichtet. Gleichzeitig wird verhindert, dass Bodenmaterial sich auf dem verlorenen Verdrängerkopf 40 ansammelt und Fehlstellen in einer zu erzeugenden Betonsäule bildet.In the illustrated embodiment, the displacer head 40 in its upper region a base cylinder 46 with a Outer diameter, which corresponds to the outer diameter of the displacement 30 corresponds. The opposite projecting Outer spirals 42 of the displacer 40 produce during displacement drilling a fault zone in the borehole wall. After loosening from the displacer 40 at a designated final depth of Drill hole is the drill string 20 with opposite rotation slowly pulled out of the hole. From above nachfallendes Soil material from the fault zone of the borehole wall is about the drill string helix 24 down to the displacer 30th promoted. Due to the outside diameter of the displacer area 30, the soil material in the borehole wall, in particular into the fault zone of the borehole wall, displaced. As a result, the borehole wall is smoothed and in addition compacted. At the same time it prevents soil material accumulates on the lost displacer 40 and flaws forms in a concrete column to be produced.

Claims (14)

Bohrwerkzeug zum Verdrängungsbohren im Boden, mit einem Bohrstrang (20), an dessen unterem Ende ein Verdrängerkopf (40) lösbar befestigt ist,
dadurch gekennzeichnet, dass das untere Ende des Bohrstranges (20) als ein Verdrängerbereich (30) ausgebildet ist, welcher gegenüber dem angrenzenden Bohrstrangbereich (22) aufgeweitet ist.Drilling tool for positive displacement drilling in the ground, comprising a drill string (20) at the lower end of which a displacer head (40) is detachably fastened,
characterized in that the lower end of the drill string (20) is formed as a displacer portion (30) which is flared over the adjacent drill string portion (22). Bohrwerkzeug nach Anspruch 1,
dadurch gekennzeichnet, dass der Verdrängerbereich (30) ein zylindrisches Segment aufweist, welches allmählich, insbesondere konisch, in den angrenzenden Bohrstrangbereich (22) übergeht.Drilling tool according to claim 1,
characterized in that the displacer section (30) comprises a cylindrical segment which gradually, in particular conically, merges into the adjacent drill string section (22). Bohrwerkzeug nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass der Verdrängerkopf (40) eine Außenwendel (42) aufweist.Drilling tool according to claim 1 or 2,
characterized in that the displacer head (40) has an outer coil (42). Bohrwerkzeug nach Anspruch 3,
dadurch gekennzeichnet, dass der Verdrängerbereich (30) am Bohrstrang (20) einen Außendurchmesser aufweist, welcher gleich oder kleiner als der Außendurchmesser der Außenwendel (42) des Verdrängerkopfes (40) ist.Drilling tool according to claim 3,
characterized in that the displacer region (30) on the drill string (20) has an outer diameter which is equal to or smaller than the outer diameter of the outer spiral (42) of the displacer head (40). Bohrwerkzeug nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass an dem Bohrstrangbereich (22), welcher an den Verdrängerbereich (30) angrenzt, eine Bohrstrangwendel (24) ausgebildet ist. Drilling tool according to one of claims 1 to 4,
characterized in that a drill string helix (24) is formed on the drill string area (22) which adjoins the displacement area (30). Bohrwerkzeug nach Anspruch 5,
dadurch gekennzeichnet, dass die Bohrstrangwendel (24) entgegengesetzt zur Außenwendel (42) des Verdrängerkopfes (40) gewunden ist.Drilling tool according to claim 5,
characterized in that the Bohrstrangwendel (24) opposite to the outer spiral (42) of the displacer head (40) is wound. Bohrwerkzeug nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass an dem Verdrängerkopf (40) Armierungselemente befestigbar sind.Drilling tool according to one of claims 1 to 6,
characterized in that reinforcing elements can be fastened to the displacer head (40). Bohrwerkzeug nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass der Bohrstrang (20) zum Einleiten eines Füllgutes rohrförmig ausgebildet ist.Drilling tool according to one of claims 1 to 7,
characterized in that the drill string (20) is tubular for introducing a filling material. Verfahren zum Verdrängungsbohren im Boden, insbesondere mit einem Bohrwerkzeug (10) nach einem der Ansprüche 1 bis 8,
bei dem ein Verdrängerkopf (40), welcher an einem unteren Ende eines Bohrstranges (20) lösbar befestigt ist, unter Verdrängung von Bodenmaterial in den Boden bis zu einer vorgesehenen Tiefe eingebracht wird, in welcher der Bohrstrang (20) vom Verdrängerkopf (40) gelöst und aus dem Boden zurückgezogen wird,
dadurch gekennzeichnet, dass am unteren Ende des Bohrstranges (20) ein Verdrängerbereich (30) ausgebildet ist, mit welchem beim Zurückziehen des Bohrstranges (20) von oben kommendes Bodenmaterial seitlich verdrängt wird.Method for positive displacement drilling in the ground, in particular with a drilling tool (10) according to one of claims 1 to 8,
in which a displacer head (40) releasably attached to a lower end of a drill string (20) is inserted into the ground to displace soil material to a designated depth, wherein the drill string (20) is disengaged from the displacer head (40) and being withdrawn from the ground,
characterized in that at the lower end of the drill string (20) has a displacement area (30) is formed, with which when retracting the drill string (20) from above coming soil material is laterally displaced. Verfahren nach Anspruch 9,
dadurch gekennzeichnet, dass an dem Verdrängerkopf (40) eine Außenwendel (42) ausgebildet ist, wobei der Bohrstrang (20) beim Einbringen in den Boden in eine Richtung gedreht wird, in welcher die Außenwendel (42) Bodenmaterial seitlich und nach oben fördert. Method according to claim 9,
characterized in that on the displacer head (40) an outer coil (42) is formed, wherein the drill string (20) is rotated when introduced into the ground in a direction in which the outer coil (42) promotes soil laterally and upwardly. Verfahren nach Anspruch 10,
dadurch gekennzeichnet, dass der Verdrängerkopf (40) durch Drehen in entgegengesetzte Richtung und/oder durch Aktivieren einer Löseeinrichtung vom Bohrstrang (20) gelöst wird.Method according to claim 10,
characterized in that the displacer head (40) is released from the drill string (20) by rotation in the opposite direction and / or by activating a release device. Verfahren nach einem der Ansprüche 9 bis 11,
dadurch gekennzeichnet, dass an dem Bohrstrangbereich (22), welcher an den Verdrängerbereich (30) angrenzt, eine Bohrstrangwendel (24) ausgebildet ist, wobei beim Zurückziehen der Bohrstrang (20) in eine Richtung gedreht wird, in welcher die Bohrstrangwendel (22) von oben kommendes Bodenmaterial in den Verdrängerbereich (30) fördert.Method according to one of claims 9 to 11,
characterized in that a drill string coil (24) is formed on the drill string portion (22) adjacent to the positive displacement portion (30), wherein upon retraction, the drill string (20) is rotated in a direction in which the drill string coil (22) of above soil material promotes in the displacement area (30). Verfahren nach einem der Ansprüche 9 bis 12,
dadurch gekennzeichnet, dass beim Zurückziehen Armierungselemente, welche am Verdrängerkopf (40) befestigt sind, mit nach oben geführt werden.Method according to one of claims 9 to 12,
characterized in that upon retraction armor elements which are fixed to the displacer head (40) are guided upwards. Verfahren nach einem der Ansprüche 9 bis 13,
dadurch gekennzeichnet, dass das erzeugte Bohrloch beim Zurückziehen des Bohrstranges (20) mit einem Füllgut verfüllt wird.Method according to one of claims 9 to 13,
characterized in that the borehole generated when retracting the drill string (20) is filled with a filling material.
EP04020562A 2003-09-24 2004-08-30 Displacement drilling tool and method of use Not-in-force EP1519000B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10344353 2003-09-24
DE10344353A DE10344353B4 (en) 2003-09-24 2003-09-24 Drilling device and method for positive displacement drilling in the ground

Publications (2)

Publication Number Publication Date
EP1519000A1 true EP1519000A1 (en) 2005-03-30
EP1519000B1 EP1519000B1 (en) 2006-05-24

Family

ID=34177927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04020562A Not-in-force EP1519000B1 (en) 2003-09-24 2004-08-30 Displacement drilling tool and method of use

Country Status (7)

Country Link
EP (1) EP1519000B1 (en)
JP (1) JP4395037B2 (en)
CN (1) CN1320250C (en)
AT (1) ATE327406T1 (en)
DE (2) DE10344353B4 (en)
RU (1) RU2292437C2 (en)
UA (1) UA75807C2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9217293B1 (en) 2014-10-17 2015-12-22 Berkel & Company Contractors, Inc. Reversible displacement auger tool
US9512588B2 (en) 2014-10-17 2016-12-06 Berkel & Company Contractors, Inc. Reversible displacement auger tool

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9243452B2 (en) * 2011-04-22 2016-01-26 Baker Hughes Incorporated Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
JP5859079B2 (en) * 2014-09-03 2016-02-10 有限会社清和実業 Auger screw
CN104878746A (en) * 2015-06-14 2015-09-02 孔超 Bidirectional extruding short spiral pile-forming device and pile-forming method
EP3467205B1 (en) 2017-10-06 2019-12-04 BAUER Maschinen GmbH Method for creating a pile in the ground and ground processing device for same
CN110685589B (en) * 2019-09-19 2020-11-24 温州博辉新材料科技有限公司 Inner wall expands puncher for municipal works of tamping

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220976C1 (en) * 1992-06-26 1993-07-15 Delmag Maschinenfabrik Reinhold Dornfeld Gmbh & Co, 7300 Esslingen, De
US5833399A (en) * 1994-01-06 1998-11-10 Global Innovations, Llc Apparatus for use in forming piles
US6033152A (en) * 1997-04-11 2000-03-07 Berkel & Company Contractors, Inc. Pile forming apparatus
FR2826050A1 (en) * 2001-06-19 2002-12-20 Cie Du Sol Drilling tool comprises web, ending in point, with standard part and widened part, near point, with first and second truncated portions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE903965A (en) * 1985-12-31 1986-04-16 Coelus Gaspar Jozef DEVICE AND METHOD FOR CARRYING DRILLING PILES.
DE4107834A1 (en) * 1991-03-12 1992-09-17 Delmag Maschinenfabrik Hollow displacement auger - has drive shaft extending longitudinally through its centre, with pointed tip, and has anti-buckling discs fitted at intervals along drive shaft, requiring minimum torque for control
BE1010638A3 (en) * 1996-09-20 1998-11-03 Poorteman Frank Drill for making a pile in the ground and method of making the drill applying.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4220976C1 (en) * 1992-06-26 1993-07-15 Delmag Maschinenfabrik Reinhold Dornfeld Gmbh & Co, 7300 Esslingen, De
US5833399A (en) * 1994-01-06 1998-11-10 Global Innovations, Llc Apparatus for use in forming piles
US6033152A (en) * 1997-04-11 2000-03-07 Berkel & Company Contractors, Inc. Pile forming apparatus
FR2826050A1 (en) * 2001-06-19 2002-12-20 Cie Du Sol Drilling tool comprises web, ending in point, with standard part and widened part, near point, with first and second truncated portions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9217293B1 (en) 2014-10-17 2015-12-22 Berkel & Company Contractors, Inc. Reversible displacement auger tool
US9506295B1 (en) 2014-10-17 2016-11-29 Berkel & Company Contractors, Inc. Reversible displacement auger tool
US9512588B2 (en) 2014-10-17 2016-12-06 Berkel & Company Contractors, Inc. Reversible displacement auger tool

Also Published As

Publication number Publication date
EP1519000B1 (en) 2006-05-24
DE502004000614D1 (en) 2006-06-29
CN1601044A (en) 2005-03-30
CN1320250C (en) 2007-06-06
DE10344353A1 (en) 2005-05-19
RU2292437C2 (en) 2007-01-27
DE10344353B4 (en) 2005-10-06
JP4395037B2 (en) 2010-01-06
ATE327406T1 (en) 2006-06-15
RU2004127846A (en) 2006-02-20
JP2005098096A (en) 2005-04-14
UA75807C2 (en) 2006-05-15

Similar Documents

Publication Publication Date Title
DE2941769C2 (en) Procedure for setting an anchor bolt and anchor bolts
DE3501439C2 (en)
EP2133507B1 (en) Drilling device and drilling method
DE69403643T2 (en) GROUND DISPLACEMENT DRILL HEAD FOR MAKING A PILE IN THE GROUND
DE69126796T2 (en) SELF-CUTTING AND SELF-CUTTING AND SELF-DRILLING MOUNTAIN ANCHORS
AT501979B1 (en) METHOD AND DEVICE FOR DRILLING, IN PARTICULAR FITTING OR TORQUE DRILLING, A HOLE IN FLOOR OR ROCK MATERIAL
EP0588143B1 (en) Earth drill for placing a concrete pile in situ
DE69711304T2 (en) Auger bit for making a pile in the ground and method for attaching this pile
WO2005090690A1 (en) Method and device for boring a hole in soil material or rock material and for forming an anchoring
EP1519000B1 (en) Displacement drilling tool and method of use
AT392517B (en) METHOD AND DEVICE FOR SECURING NON OR. Moderately stable, non-cohesive to slightly cohesive geological formations
WO2002088523A1 (en) Method and device for drilling a hole and for securing an anchorage in a bore hole
DE3718158C2 (en) Device for producing an undercut in a cylindrical pre-drilled borehole
EP3091173B1 (en) Drilling system for generating or extending a borehole in the ground and method for controlling an advance of such a drilling system
AT509159B1 (en) METHOD AND DEVICE FOR DRILLING, IN PARTICULAR FITTING OR TORQUE DRILLING, A HOLE IN GROUND OR ROCK MATERIAL AND FOR FORMING AN ANCHORAGE IN THE HOLE
DE202020105037U1 (en) Filling tube for creating a filling material column in the ground
DE102006023799B4 (en) Device for producing foundation elements
EP2666911B1 (en) Method for producing a floor mortar wall in the floor
DE102013104773A1 (en) ground anchor
DE19503177C1 (en) Method of mfr. of concrete posts submerged in ground
DE19651586C2 (en) Drilling device for partial displacement piles
DE102004005238B3 (en) Device for producing holes in the ground for anchoring and posts comprises an endless screw having several helix cutouts arranged in a part of the screw helix surfaces arranged behind the crown
DE2111782A1 (en) Anchor bolts and procedures for their installation
EP1580323B1 (en) Auger and method of installing piles in a ground by means of said auger
EP3517688A1 (en) Ground anchor element

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK

17P Request for examination filed

Effective date: 20050411

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502004000614

Country of ref document: DE

Date of ref document: 20060629

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060725

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IE

Payment date: 20060818

Year of fee payment: 3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060824

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061024

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060825

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060824

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060830

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061125

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060524

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080831

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20130827

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140901

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20150729

Year of fee payment: 12

Ref country code: DE

Payment date: 20150826

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20150813

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20150817

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160831

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004000614

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160830

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160830