EP2839083A1 - Drive point for a pile - Google Patents

Drive point for a pile

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Publication number
EP2839083A1
EP2839083A1 EP13716208.7A EP13716208A EP2839083A1 EP 2839083 A1 EP2839083 A1 EP 2839083A1 EP 13716208 A EP13716208 A EP 13716208A EP 2839083 A1 EP2839083 A1 EP 2839083A1
Authority
EP
European Patent Office
Prior art keywords
ramming
pile
tip
concrete
ram
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
EP13716208.7A
Other languages
German (de)
French (fr)
Other versions
EP2839083B9 (en
EP2839083B1 (en
Inventor
Jérôme COULON
Hermann Mutschlechner
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.)
Tiroler Rohre GmbH
Original Assignee
Tiroler Rohre 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=48095787&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2839083(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tiroler Rohre GmbH filed Critical Tiroler Rohre GmbH
Priority to SI201330959T priority Critical patent/SI2839083T1/en
Priority to DE502013008877.4A priority patent/DE502013008877C5/en
Priority to PL13716208T priority patent/PL2839083T3/en
Priority to HRP20180297TT priority patent/HRP20180297T1/en
Publication of EP2839083A1 publication Critical patent/EP2839083A1/en
Application granted granted Critical
Publication of EP2839083B1 publication Critical patent/EP2839083B1/en
Publication of EP2839083B9 publication Critical patent/EP2839083B9/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E02D5/72—Pile shoes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • 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

Definitions

  • the invention relates to a Rammspitze for a substantially tubular, in particular hollow cylindrical, driven pile with a pile core through which concrete can be introduced into the pile, the ram tip is attachable to a pile end of the pile, wherein on an inner wall of the Rammspitze at least a first bearing web a first bearing surface is arranged for an end face of the pile end.
  • Such Ramm facilitaten be used in the construction industry for the production of pile foundations.
  • the individual piles which are usually made of ductile cast iron and have predetermined lengths of, for example, five meters, are plugged into each other to produce a pile foundation.
  • the piles In order to facilitate the nesting of piles and thus the extension of a pile foundation, the piles usually have a conically tapered first pile end and a second pile end formed into a sleeve.
  • pile by pile can be driven into the ground, which can be produced quickly and inexpensively pile foundations of any length.
  • Piles of this type are usually produced in a centrifugal casting process with a shaping rotating mold. This results in substantially cylindrical tubular piles, which are hollow inside. Depending on the type of use, these hollow cylindrical ramming piles can be filled or encased with concrete or another suitable grout after being grounded to produce a stable foundation.
  • a ram tip is slipped onto the first driven pile, whose outer diameter is larger than the outer diameter of the driven pile.
  • an annular space can be generated during ramming, which can be filled up by a compression with the injection material or concrete.
  • a pumpable concrete mortar which usually has a grain size of up to 4 mm, is conveyed through the hollow pile core of the driven pile to the pile base and pressed into the ground at the ramming point.
  • the concrete grouting takes place simultaneously with the pile pile pile
  • the object of the invention is to provide an improved Rammspitze can be made with the pile foundations while avoiding the disadvantages described above.
  • the ramming point has, starting from the plane of the first support surface, a cavity extending at least partially in the insertion direction into which concrete can be introduced through the pile core when the driven pile is plugged in, wherein at least one concrete outlet channel is provided which carries the hollow space connects to an upper edge of the Rammspitze.
  • the Rammpfahl need not be manipulated when using a Rammspitze according to the invention, whereby no unwanted weakening of the pipe cross-section of the driven pile takes place.
  • the ram point at least partially, preferably completely, made of cast iron and has a substantially rotationally symmetrical outer shape, wherein the axis of rotation extends substantially in Einrammraum.
  • the at least one first support web is formed in cross-section to the Einrammutter as a circular segment or annulus segment. It is advantageous if a circular arc of the circular segment or annulus segment extends over less than 340 °, preferably over 40 ° to 120 °, more preferably over 70 ° to 90 °.
  • a plurality of concrete outlet channels preferably three concrete outlet channels, is or are provided.
  • two concrete outlet channels of the plurality of concrete outlet channels are arranged in cross section to the Einrammcardi along the inner wall of the Rammspitze substantially equidistantly from each other.
  • the concrete outlet channels can also be arranged along the inner wall of the Rammspitze that they have irregular distances from one another.
  • At least one radially inwardly projecting supporting device may be provided on the inner wall.
  • the at least one radially inwardly projecting support device may be formed as a plurality of support ribs.
  • first and second bearing surfaces lie in the same plane.
  • the first and second bearing surfaces can preferably lie in a plane parallel to a cross-sectional plane transversely to the direction of insertion E.
  • Fig. 1a is a longitudinal section of a proposed Rammspitze along the
  • Fig. 1 b shows a cross section along section line A-A of Rammexcellent
  • Fig. 2a shows a longitudinal section of another proposed Rammspitze with two different bearing surfaces for two piles with different outer diameters
  • FIG. 2b shows a cross section along section line AA
  • Rammspitze of Fig. 2a. 1a shows a longitudinal section of a proposed ram point 1 along a Einrammcardi E and Fig. 1 b shows a cross section along section line AA.
  • the Rammspitze 1 is made in one piece in this example and is made of ductile cast iron.
  • the outer shape of the Rammspitze 1 is rotationally symmetrical with respect to the rotation axis R formed.
  • the Rammspitze 1 has an outer diameter D which is greater than an outer diameter D P of a pinned Rammpfahls 2.
  • the outer diameter D of Rammrade 1 decreases in the direction of its end truncated cone, whereby the ramming of a pile foundation with plugged Rammspitze 1 is facilitated.
  • From the inner wall 5 of the Rammrade 1 are opposite the Einrammutter E from a plurality of first support webs 6, each having a first bearing surface 7.
  • the first bearing surfaces 7 of the first support webs 6 lie in one plane and form a defined stop for the end face 8 of a pile end 4 of a pinned Rammpfahls 2.
  • a cavity 9 is formed in the Rammspitze 1, which extends in Einrammcardi E. Between the cavity 9 and the upper edge 11 of the Rammrade 1 three concrete outlet channels 10 are formed in this example. This makes it possible that in the production of a pile foundation concrete mortar, which is introduced through the pile core 3 of the driven pile 2 and penetrates via the end face 8 in the cavity 9, passes through the concrete outlet channels 10 to the outer wall of the driven pile 2 and thus the production of a Mantelverpressung allows.
  • Fig. 1 b shows the Rammspitze 1 of Fig. 1a in a cross-sectional view along section line A-A of Fig. 1 a.
  • the stop arranged at a distance T from the upper edge 11 of the ramming tip 1 in the direction of insertion E for the end face 8 of the driven pile 2 is formed by a total of three first bearing surfaces 7.
  • Each of the three first support webs 6 is formed in cross section to the Einrammcardi E as a circular ring segment.
  • the circular arc 12 of each circular segment each extends over an angular range of 80 ° and the three circular arcs 12 are arranged distributed uniformly along an imaginary circle.
  • a concrete outlet channel 10 is arranged between each two first support webs 6, a concrete outlet channel 10 is arranged.
  • two concrete outlet channels 10 along the inner wall 5 of the Rammspitze 1 are arranged substantially at equal distances from each other.
  • each concrete outlet channel 10 extends over a Angular range of 40 °.
  • a plurality of support ribs are arranged as supporting devices 13 on the inner wall 5.
  • Fig. 2a shows a possible development of a Rammspitze 1 of FIG. 1 a.
  • this embodiment additionally has second support webs 6 'for a second driven pile 2' with a different outer diameter D P 'relative to the driven pile 2.
  • Each second support web 6 ' has a second bearing surface 7', wherein the sum of the second bearing surfaces T forms a defined stop for the end face 8 'of the second driven pile 2'.
  • the distance T of the second bearing surfaces 7 'from the edge 1 1 of the Rammrade 1 is greater than the distance T of the first bearing surfaces 7 from the edge 1 1 of Rammrade first
  • both bearing surfaces 7, 7 'to lie in the same plane. In this case, only the width of a support surface 7, 7 'in the radial direction would be so large that it is suitable for the entire bandwidth of the outer diameter Dp, Dp' of the driven piles 2, 2 'to be used.
  • FIG. 2b shows the Rammrade 1 of Fig. 2a in a cross-sectional view along section line AA. It can be seen that the bearing surfaces 7, T corresponding to the different outer diameter D P , D P 'of the driven piles 2, 2' have a different radial distance from the axis of rotation R of the ram tip 1.
  • the structural design of the Rammspitze 1 shown, however, is otherwise similar to the Rammrade 1 of Fig. 1 b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

The invention relates to a drive point (1) for a substantially tubular, in particular hollow cylindrical, driven pile (2) having a pile core (3) through which concrete can be introduced into the driven pile (2), wherein the drive point (1) can be fitted onto one end (4) of the driven pile (2), wherein at least one first supporting web (6) with a first contact surface (7) for an end face (8) of the pile end (4) is arranged on an inner wall (5) of the drive point (1), wherein starting from the plane of the first bearing surface (7) the drive point (1) has a cavity (9) which extends at least partially in the driving direction (E) and into which concrete can be introduced through the pile core (3) when the driven pile is fitted, wherein at least one concrete outlet channel (10) is provided which connects the cavity (9) to an upper edge (11) of the drive point (1).

Description

RAMMSPITZE FÜR PFAHL  RAMS TIP FOR PFAHL

Die Erfindung betrifft eine Rammspitze für einen im Wesentlichen rohrförmigen, insbesondere hohlzylindrischen, Rammpfahl mit einer Pfahlseele, durch die Beton in den Rammpfahl einbringbar ist, wobei die Rammspitze auf ein Pfahlende des Rammpfahls aufsteckbar ist, wobei an einer Innenwandung der Rammspitze wenigstens ein erster Auflagesteg mit einer ersten Auflagefläche für eine Stirnseite des Pfahlendes angeordnet ist. The invention relates to a Rammspitze for a substantially tubular, in particular hollow cylindrical, driven pile with a pile core through which concrete can be introduced into the pile, the ram tip is attachable to a pile end of the pile, wherein on an inner wall of the Rammspitze at least a first bearing web a first bearing surface is arranged for an end face of the pile end.

Derartige Rammspitzen werden in der Bauwirtschaft zur Herstellung von Pfahlgründungen eingesetzt. Die einzelnen Rammpfähle, die zumeist aus duktilem Gusseisen bestehen und vorbestimmte Längen von beispielsweise fünf Metern aufweisen, werden zum Herstellen einer Pfahlgründung ineinander gesteckt. Um das Ineinanderstecken von Rammpfählen und somit das Verlängern einer Pfahlgründung zu erleichtern, weisen die Rammpfähle üblicherweise ein sich konisch verjüngendes erstes Pfahlende und ein zu einer Muffe ausgebildetes zweites Pfahlende auf. Dadurch kann Pfahl für Pfahl in den Boden eingerammt werden, wodurch sich rasch und kostengünstig Pfahlgründungen in beliebiger Länge herstellen lassen. Rammpfähle dieser Art werden üblicherweise in einem Schleudergussverfahren mit einer formgebenden rotierenden Kokille hergestellt. Dabei entstehen im Wesentlichen zylindrische rohrförmige Pfähle, die innen hohl sind. Je nach Verwendungsart können diese hohlzylindrischen Rammpfähle für die Herstellung einer stabilen Gründung nach dem Einrammen in den Boden mit Beton oder einem anderen geeigneten Injektionsgut ausgefüllt oder ummantelt werden. Such Rammspitzen be used in the construction industry for the production of pile foundations. The individual piles, which are usually made of ductile cast iron and have predetermined lengths of, for example, five meters, are plugged into each other to produce a pile foundation. In order to facilitate the nesting of piles and thus the extension of a pile foundation, the piles usually have a conically tapered first pile end and a second pile end formed into a sleeve. As a result, pile by pile can be driven into the ground, which can be produced quickly and inexpensively pile foundations of any length. Piles of this type are usually produced in a centrifugal casting process with a shaping rotating mold. This results in substantially cylindrical tubular piles, which are hollow inside. Depending on the type of use, these hollow cylindrical ramming piles can be filled or encased with concrete or another suitable grout after being grounded to produce a stable foundation.

Zur Herstellung einer sogenannten mantelverpressten Pfahlgründung wird auf den ersten Rammpfahl eine Rammspitze aufgesteckt, deren Außendurchmesser größer ist als der Außendurchmesser des Rammpfahls. Dadurch kann während des Einrammens ein Ringraum erzeugt werden, der durch eine Verpressung mit dem Injektionsgut bzw. Beton aufgefüllt werden kann. Dazu wird während der Rammung ein pumpfähiger Betonmörtel, der üblicherweise eine Körnung von bis zu 4 mm aufweist, durch die hohle Pfahlseele des Rammpfahls zum Pfahlfuß gefördert und bei der Rammspitze in den Boden verpresst. Somit erfolgt die Betonverpressung gleichzeitig mit der Pfahlrammung To produce a so-called mantle-pressed pile foundation, a ram tip is slipped onto the first driven pile, whose outer diameter is larger than the outer diameter of the driven pile. As a result, an annular space can be generated during ramming, which can be filled up by a compression with the injection material or concrete. For this purpose, during pumping, a pumpable concrete mortar, which usually has a grain size of up to 4 mm, is conveyed through the hollow pile core of the driven pile to the pile base and pressed into the ground at the ramming point. Thus, the concrete grouting takes place simultaneously with the pile pile

BESTÄTIGUNGSKOPIE und ist bei Erreichen der Endtiefe der Pfahlgründung abgeschlossen. Durch die Mantelverpressung ist vor allem in Kiesen und Sanden eine erhebliche Steigerung der Gebrauchslast einer Pfahlgründung möglich, weil in großkörnigen Böden zwischen Verpressmantel und Boden eine wesentlich höhere Mantelreibung herrscht als zwischen dem Pfahlrohr eines unverpressten Rammpfahls und dem Boden. CONFIRMATION COPY and is completed upon reaching the final depth of the pile foundation. By Mantelverpressung a considerable increase in the working load of a pile foundation is possible, especially in gravel and sands, because in large-grained soils between the compression jacket and ground a much higher skin friction prevails as between the pile tube of a non-pressed pile and the ground.

Damit der in die Pfahlseele eines Rammpfahls eingebrachte Betonmörtel aus dem Rammpfahl austreten und um den Rammpfahl einen Verpressmantel bilden kann, ist im Stand der Technik bekannt, aus dem Rammpfahl entsprechende Öffnungen auszuschneiden. Dadurch kommt es jedoch zu einer Schwächung des Rohrquerschnittes und damit zu statischen Instabilitäten einer Pfahlgründung. So that the concrete mortar introduced into the pile core of a pile pile can exit from the pile pile and form a grouting jacket around the pile pile, it is known in the prior art to cut out corresponding openings from the pile pile. However, this leads to a weakening of the pipe cross-section and thus to static instabilities of a pile foundation.

Aufgabe der Erfindung ist es, eine verbesserte Rammspitze anzugeben, mit der Pfahlgründungen unter Vermeidung der vorbeschriebenen Nachteile hergestellt werden können. The object of the invention is to provide an improved Rammspitze can be made with the pile foundations while avoiding the disadvantages described above.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Patentansprüchen angegeben. This object is achieved by the features of claim 1. Advantageous embodiments of the invention are specified in the dependent claims.

Gemäß der Erfindung ist also vorgesehen, dass die Rammspitze ausgehend von der Ebene der ersten Auflagefläche einen sich zumindest teilweise in Einrammrichtung erstreckenden Hohlraum aufweist, in den bei aufgestecktem Rammpfahl durch die Pfahlseele Beton einbringbar ist, wobei wenigstens ein Betonaustrittskanal vorgesehen ist, der den Hohlraum mit einem oberen Rand der Rammspitze verbindet. According to the invention, it is thus provided that the ramming point has, starting from the plane of the first support surface, a cavity extending at least partially in the insertion direction into which concrete can be introduced through the pile core when the driven pile is plugged in, wherein at least one concrete outlet channel is provided which carries the hollow space connects to an upper edge of the Rammspitze.

Dadurch kann während des Einrammens Betonmörtel oder ein anderes geeignetes Injektionsgut in den Ringraum zwischen dem Außendurchmesser der Rammspitze und dem Außendurchmesser des Rammpfahls eingebracht werden, ohne dass dafür entsprechende Einschnitte oder Öffnungen im Mantel des Rammpfahls hergestellt werden müssen. Mit anderen Worten braucht der Rammpfahl bei Einsatz einer erfindungsgemäßen Rammspitze gar nicht manipuliert werden, wodurch auch keine ungewünschte Schwächung des Rohrquerschnittes des Rammpfahls erfolgt. In einer besonders bevorzugten Ausführungsform besteht die Rammspitze zumindest teilweise, vorzugsweise vollständig, aus Gusseisen und weist eine im Wesentlichen rotationssymmetrische Außenform auf, wobei die Rotationsachse im Wesentlichen in Einrammrichtung verläuft. Wenn sich ein Außendurchmesser der Rammspitze in Einrammrichtung im Wesentlichen kontinuierlich verringert, lässt sich eine Pfahlgründung mit Einsatz einer vorgeschlagenen Rammspitze besonders leicht einrammen. Selbstverständlich kann aber auch vorgesehen sein, dass der Außendurchmesser der Rammspitze entlang ihrer Erstreckung in Einrammrichtung im Wesentlichen konstant ist. As a result, concrete mortar or another suitable injection material can be introduced into the annular space between the outer diameter of the ramming tip and the outer diameter of the driven pile during ramming, without corresponding cuts or openings having to be made in the jacket of the driven pile. In other words, the Rammpfahl need not be manipulated when using a Rammspitze according to the invention, whereby no unwanted weakening of the pipe cross-section of the driven pile takes place. In a particularly preferred embodiment, the ram point at least partially, preferably completely, made of cast iron and has a substantially rotationally symmetrical outer shape, wherein the axis of rotation extends substantially in Einrammrichtung. If an outer diameter of the ram tip in the driving direction substantially continuously reduced, a pile foundation with the use of a proposed Rammspitze can be particularly easily rammed. Of course, however, it can also be provided that the outside diameter of the ram tip is essentially constant along its extension in the direction of insertion.

Da zumeist hohlzylindrische Rammpfähle eingesetzt werden, ist in einer vorteilhaften Weiterbildung der Erfindung vorgesehen, dass der wenigstens eine erste Auflagesteg im Querschnitt zur Einrammrichtung als Kreissegment oder Kreisringsegment ausgebildet ist. Günstig ist dabei, wenn sich ein Kreisbogen des Kreissegments oder Kreisringsegments über weniger als 340°, vorzugsweise über 40° bis 120°, besonders bevorzugt über 70° bis 90°, erstreckt. Since mostly hollow cylindrical piles are used, it is provided in an advantageous development of the invention that the at least one first support web is formed in cross-section to the Einrammrichtung as a circular segment or annulus segment. It is advantageous if a circular arc of the circular segment or annulus segment extends over less than 340 °, preferably over 40 ° to 120 °, more preferably over 70 ° to 90 °.

In einer besonders bevorzugten Ausführungsvariante kann vorgesehen sein, dass eine Mehrzahl von Betonaustrittskanälen, vorzugsweise drei Betonaustrittskanäle, vorgesehen ist bzw. sind. Vorzugsweise sind dabei jeweils zwei Betonaustrittskanäle der Mehrzahl von Betonaustrittskanälen im Querschnitt zur Einrammrichtung entlang der Innenwandung der Rammspitze im Wesentlichen mit gleichen Abständen zueinander angeordnet. Selbstverständlich können die Betonaustrittskanäle auch so entlang der Innenwandung der Rammspitze angeordnet sein, dass diese unregelmäßige Abstände zueinander aufweisen. In a particularly preferred embodiment, it can be provided that a plurality of concrete outlet channels, preferably three concrete outlet channels, is or are provided. Preferably, in each case two concrete outlet channels of the plurality of concrete outlet channels are arranged in cross section to the Einrammrichtung along the inner wall of the Rammspitze substantially equidistantly from each other. Of course, the concrete outlet channels can also be arranged along the inner wall of the Rammspitze that they have irregular distances from one another.

Zur Zentrierung und/oder lagestabilen Fixierung des Rammpfahls kann an der Innenwandung wenigstens eine radial nach innen ragende Stützvorrichtung vorgesehen sein. Dabei kann vorzugsweise die wenigstens eine radial nach innen ragende Stützvorrichtung als eine Mehrzahl von Stützrippen ausgebildet sein. For centering and / or positionally stable fixing of the driven pile, at least one radially inwardly projecting supporting device may be provided on the inner wall. In this case, preferably, the at least one radially inwardly projecting support device may be formed as a plurality of support ribs.

Um eine universell einsetzbare Rammspitze für eine Mehrzahl von Rammpfählen mit unterschiedlichen Außendurchmessern bereitstellen zu können, kann in einer bevorzugten Ausführungsvariante vorgesehen sein, dass an der Innenwandung der Rammspitze wenigstens ein zweiter Auflagesteg mit einer zweiten Auflagefläche für eine Stirnseite eines Pfahlendes angeordnet ist, wobei in Einrammrichtung der Abstand der zweiten Auflagefläche vom Rand der Rammspitze größer ist als der Abstand der ersten Auflagefläche vom Rand der Rammspitze. Es ist aber auch möglich, dass die ersten und zweiten Auflageflächen in derselben Ebene liegen. Generell können die ersten und zweiten Auflageflächen vorzugsweise in einer Ebene parallel zu einer Querschnittsebene quer zur Einrammrichtung E liegen. In order to be able to provide a universally usable ram tip for a plurality of ramming piles with different outside diameters, it can be provided in a preferred embodiment that on the inside wall of the ridge Rammspitze at least a second support web is arranged with a second bearing surface for an end face of a pile end, wherein in Einrammrichtung the distance of the second bearing surface from the edge of the ram tip is greater than the distance of the first bearing surface from the edge of the ram tip. But it is also possible that the first and second bearing surfaces lie in the same plane. In general, the first and second bearing surfaces can preferably lie in a plane parallel to a cross-sectional plane transversely to the direction of insertion E.

Besonders vorteilhaft ist jene Ausführungsform der Erfindung, bei der die Rammspitze einteilig ausgeführt ist. Es ist selbstverständlich aber auch möglich, dass die Rammspitze mehrteilig ausgeführt ist. Particularly advantageous is that embodiment of the invention in which the ram tip is made in one piece. It is of course also possible that the Rammspitze is designed in several parts.

Weitere Einzelheiten und Vorteile der vorliegenden Erfindung werden anhand der nachfolgenden Figurenbeschreibung erläutert. Dabei zeigt bzw. zeigen Further details and advantages of the present invention will be explained with reference to the following description of the figures. It shows or show

Fig. 1a einen Längsschnitt einer vorgeschlagenen Rammspitze entlang der Fig. 1a is a longitudinal section of a proposed Rammspitze along the

Einrammrichtung,  Einrammrichtung,

Fig. 1 b einen Querschnitt gemäß Schnittlinie A-A der Rammspitze aus  Fig. 1 b shows a cross section along section line A-A of Rammspitze

Fig. 1 a,  Fig. 1a,

Fig. 2a einen Längsschnitt einer weiteren vorgeschlagenen Rammspitze mit zwei unterschiedlichen Auflageflächen für zwei Rammpfähle mit unterschiedlichen Außendurchmessern und Fig. 2a shows a longitudinal section of another proposed Rammspitze with two different bearing surfaces for two piles with different outer diameters and

Fig. 2b einen Querschnitt gemäß Schnittlinie A-A der Rammspitze aus Fig. 2a. Fig. 1a zeigt einen Längsschnitt einer vorgeschlagenen Rammspitze 1 entlang einer Einrammrichtung E und Fig. 1 b zeigt einen Querschnitt gemäß Schnittlinie A-A. Die Rammspitze 1 ist in diesem Beispiel einteilig ausgeführt und besteht aus duktilem Gusseisen. Die Außenform der Rammspitze 1 ist rotationssymmetrisch in Bezug auf die Rotationsachse R ausgebildet. An einem oberen Rand 11 weist die Rammspitze 1 einen Außendurchmesser D auf, der größer ist als ein Außendurchmesser DP eines aufgesteckten Rammpfahls 2. In Einrammrichtung E verringert sich der Außendurchmesser D der Rammspitze 1 in Richtung ihres Endes kegelstumpfartig, wodurch das Einrammen einer Pfahlgründung mit aufgesteckter Rammspitze 1 erleichtert wird. Von der Innenwandung 5 der Rammspitze 1 stehen entgegen der Einrammrichtung E mehrere erste Auflagestege 6 ab, die jeweils eine erste Auflagefläche 7 aufweisen. Die ersten Auflageflächen 7 der ersten Auflagestege 6 liegen dabei in einer Ebene und bilden in Summe einen definierten Anschlag für die Stirnseite 8 eines Pfahlendes 4 eines aufgesteckten Rammpfahls 2. Durch diesen definierten Anschlag kann der Rammpfahl 2 in Einrammrichtung E so weit auf die Rammspitze 1 aufgesteckt werden, bis die Stirnseite 8 des Rammpfahls 2 an den ersten Auflageflächen 7 der ersten Auflagestege 6 anliegt. Die maximale Einstecktiefe des Rammpfahls 2 in Einrammrichtung E ergibt sich durch den Abstand T vom oberen Rand 11 der Rammspitze 1 bis zur Ebene der ersten Auflageflächen 7. 2b shows a cross section along section line AA Rammspitze of Fig. 2a. 1a shows a longitudinal section of a proposed ram point 1 along a Einrammrichtung E and Fig. 1 b shows a cross section along section line AA. The Rammspitze 1 is made in one piece in this example and is made of ductile cast iron. The outer shape of the Rammspitze 1 is rotationally symmetrical with respect to the rotation axis R formed. At an upper edge 11, the Rammspitze 1 has an outer diameter D which is greater than an outer diameter D P of a pinned Rammpfahls 2. In Einrammrichtung E, the outer diameter D of Rammspitze 1 decreases in the direction of its end truncated cone, whereby the ramming of a pile foundation with plugged Rammspitze 1 is facilitated. From the inner wall 5 of the Rammspitze 1 are opposite the Einrammrichtung E from a plurality of first support webs 6, each having a first bearing surface 7. The first bearing surfaces 7 of the first support webs 6 lie in one plane and form a defined stop for the end face 8 of a pile end 4 of a pinned Rammpfahls 2. By this defined stop the driven pile 2 in Einrammrichtung E so far attached to the Rammspitze 1 be until the end face 8 of the pile pile 2 rests against the first bearing surfaces 7 of the first support webs 6. The maximum insertion depth of the driven pile 2 in Einrammrichtung E results from the distance T from the upper edge 11 of the Rammspitze 1 to the plane of the first bearing surfaces. 7

Ausgehend von der Ebene der ersten Auflageflächen 7 ist in der Rammspitze 1 ein Hohlraum 9 ausgebildet, der sich in Einrammrichtung E erstreckt. Zwischen dem Hohlraum 9 und dem oberen Rand 11 der Rammspitze 1 sind in diesem Beispiel drei Betonaustrittskanäle 10 ausgebildet. Dadurch wird ermöglicht, dass bei der Herstellung einer Pfahlgründung Betonmörtel, der durch die Pfahlseele 3 des Rammpfahls 2 eingebracht wird und über die Stirnseite 8 in den Hohlraum 9 eindringt, über die Betonaustrittskanäle 10 an die Außenwandung des Rammpfahls 2 gelangt und damit die Herstellung einer Mantelverpressung ermöglicht. Starting from the plane of the first bearing surfaces 7, a cavity 9 is formed in the Rammspitze 1, which extends in Einrammrichtung E. Between the cavity 9 and the upper edge 11 of the Rammspitze 1 three concrete outlet channels 10 are formed in this example. This makes it possible that in the production of a pile foundation concrete mortar, which is introduced through the pile core 3 of the driven pile 2 and penetrates via the end face 8 in the cavity 9, passes through the concrete outlet channels 10 to the outer wall of the driven pile 2 and thus the production of a Mantelverpressung allows.

Fig. 1 b zeigt die Rammspitze 1 der Fig. 1a in einer Querschnittsdarstellung gemäß Schnittlinie A-A der Fig. 1 a. In dieser Darstellung ist deutlich zu erkennen, dass der im Abstand T vom oberen Rand 11 der Rammspitze 1 in Einrammrichtung E angeordnete Anschlag für die Stirnseite 8 des Rammpfahls 2 durch insgesamt drei erste Auflageflächen 7 gebildet ist. Jeder der drei ersten Auflagestege 6 ist dabei im Querschnitt zur Einrammrichtung E als Kreisringsegment ausgebildet. Der Kreisbogen 12 eines jeden Kreisringsegments erstreckt sich dabei jeweils über einen Winkelbereich von 80° und die drei Kreisbögen 12 sind entlang eines gedachten Kreises gleichmäßig verteilt angeordnet. Fig. 1 b shows the Rammspitze 1 of Fig. 1a in a cross-sectional view along section line A-A of Fig. 1 a. In this illustration, it can clearly be seen that the stop arranged at a distance T from the upper edge 11 of the ramming tip 1 in the direction of insertion E for the end face 8 of the driven pile 2 is formed by a total of three first bearing surfaces 7. Each of the three first support webs 6 is formed in cross section to the Einrammrichtung E as a circular ring segment. The circular arc 12 of each circular segment each extends over an angular range of 80 ° and the three circular arcs 12 are arranged distributed uniformly along an imaginary circle.

Zwischen jeweils zwei ersten Auflagestegen 6 ist ein Betonaustrittskanal 10 angeordnet. Dabei sind jeweils zwei Betonaustrittskanäle 10 entlang der Innenwandung 5 der Rammspitze 1 im Wesentlichen mit gleichen Abständen zueinander angeordnet. Entlang der Innenwandung 5 verläuft jeder Betonaustrittskanal 10 über einen Winkelbereich von 40°. Zur Zentrierung und/oder lagestabilen Fixierung des Rammpfahls 2 sind an der Innenwandung 5 mehrere Stützrippen als Stützvorrichtungen 13 angeordnet. Fig. 2a zeigt eine mögliche Weiterbildung einer Rammspitze 1 gemäß Fig. 1 a. Diese Ausführungsform weist neben ersten Auflagestegen 6 für einen ersten Rammpfahl 2 zusätzlich zweite Auflagestege 6' für einen zweiten Rammpfahl 2' mit einem unterschiedlichen Außendurchmesser DP' gegenüber dem Rammpfahl 2 auf. Jeder zweite Auflagesteg 6' weist eine zweite Auflagefläche 7' auf, wobei die Summe der zweiten Auflageflächen T einen definierten Anschlag für die Stirnseite 8' des zweiten Rammpfahls 2' bildet. In Einrammrichtung E ist der Abstand T der zweiten Auflageflächen 7' vom Rand 1 1 der Rammspitze 1 größer als der Abstand T der ersten Auflageflächen 7 vom Rand 1 1 der Rammspitze 1 . Selbstverständlich wäre es auch möglich, dass beide Auflageflächen 7, 7' in derselben Ebene liegen. Dabei bräuchte lediglich die Breite einer Auflagefläche 7, 7' in radialer Richtung so groß gewählt werden, dass sie für die gesamte Bandbreite der Außendurchmesser Dp, Dp' der zu verwendenden Rammpfähle 2, 2' geeignet ist. Between each two first support webs 6, a concrete outlet channel 10 is arranged. In each case, two concrete outlet channels 10 along the inner wall 5 of the Rammspitze 1 are arranged substantially at equal distances from each other. Along the inner wall 5, each concrete outlet channel 10 extends over a Angular range of 40 °. For centering and / or position-stable fixation of the driven pile 2, a plurality of support ribs are arranged as supporting devices 13 on the inner wall 5. Fig. 2a shows a possible development of a Rammspitze 1 of FIG. 1 a. In addition to first support webs 6 for a first driven pile 2, this embodiment additionally has second support webs 6 'for a second driven pile 2' with a different outer diameter D P 'relative to the driven pile 2. Each second support web 6 'has a second bearing surface 7', wherein the sum of the second bearing surfaces T forms a defined stop for the end face 8 'of the second driven pile 2'. In Einrammrichtung E, the distance T of the second bearing surfaces 7 'from the edge 1 1 of the Rammspitze 1 is greater than the distance T of the first bearing surfaces 7 from the edge 1 1 of Rammspitze first Of course, it would also be possible for both bearing surfaces 7, 7 'to lie in the same plane. In this case, only the width of a support surface 7, 7 'in the radial direction would be so large that it is suitable for the entire bandwidth of the outer diameter Dp, Dp' of the driven piles 2, 2 'to be used.

Fig. 2b zeigt die Rammspitze 1 der Fig. 2a in einer Querschnittsdarstellung gemäß Schnittlinie A-A. Hierbei ist zu erkennen, dass die Auflageflächen 7, T entsprechend der unterschiedlichen Außendurchmesser DP, DP' der Rammpfähle 2, 2' einen unterschiedlichen radialen Abstand zur Rotationsachse R der Rammspitze 1 aufweisen. Der konstruktive Aufbau der gezeigten Rammspitze 1 ist ansonsten jedoch ähnlich der Rammspitze 1 der Fig. 1 b. 2b shows the Rammspitze 1 of Fig. 2a in a cross-sectional view along section line AA. It can be seen that the bearing surfaces 7, T corresponding to the different outer diameter D P , D P 'of the driven piles 2, 2' have a different radial distance from the axis of rotation R of the ram tip 1. The structural design of the Rammspitze 1 shown, however, is otherwise similar to the Rammspitze 1 of Fig. 1 b.

Claims

Patentansprüche: Patent claims: Rammspitze (1) für einen im Wesentlichen rohrförmigen, insbesondere hohlzylindrischen, Rammpfahl Ramming tip (1) for a substantially tubular, in particular hollow cylindrical, ramming pile (2) mit einer Pfahlseele (2) with a pile core (3), durch die Beton in den Rammpfahl (2) einbringbar ist, wobei die Rammspitze (1 ) auf ein Pfahlende (3), through which concrete can be introduced into the driven pile (2), with the driving tip (1) on one end of the pile (4) des Rammpfahls (2) aufsteckbar ist, wobei an einer Innenwandung (4) of the driven pile (2) can be attached, being on an inner wall (5) der Rammspitze (1 ) wenigstens ein erster Auflagesteg (6) mit einer ersten Auflagefläche (7) für eine Stirnseite (8) des Pfahlendes (4) angeordnet ist, dadurch gekennzeichnet, dass die Rammspitze (1) ausgehend von der Ebene der ersten Auflagefläche (7) einen sich zumindest teilweise in Einrammrichtung (E) erstreckenden Hohlraum (9) aufweist, in den bei aufgestecktem Rammpfahl (2) durch die Pfahlseele (3) Beton einbringbar ist, wobei wenigstens ein Betonaustrittskanal (10) vorgesehen ist, der den Hohlraum (9) mit einem oberen Rand (11 ) der Rammspitze (1 ) verbindet. (5) the ram tip (1) has at least one first support web (6) with a first support surface (7) arranged for an end face (8) of the pile end (4), characterized in that the ram tip (1) starts from the plane of the The first support surface (7) has a cavity (9) which extends at least partially in the driving direction (E), into which concrete can be introduced through the pile core (3) when the driven pile (2) is attached, at least one concrete outlet channel (10) being provided connects the cavity (9) with an upper edge (11) of the ram tip (1). Rammspitze nach Anspruch 1 , dadurch gekennzeichnet, dass die Rammspitze (1 ) eine im Wesentlichen rotationssymmetrische Außenform aufweist, wobei die Rotationsachse (R) im Wesentlichen in Einrammrichtung (E) verläuft. Ramming tip according to claim 1, characterized in that the ramming tip (1) has a substantially rotationally symmetrical outer shape, with the axis of rotation (R) running essentially in the ramming direction (E). Rammspitze nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der wenigstens eine erste Auflagesteg (6) im Querschnitt zur Einrammrichtung (E) als Kreissegment oder Kreisringsegment ausgebildet ist. Ram tip according to claim 1 or 2, characterized in that the at least one first support web (6) is designed as a circular segment or circular ring segment in cross section to the ramming direction (E). Rammspitze nach Anspruch 3, dadurch gekennzeichnet, dass sich ein Kreisbogen (12) des Kreissegments oder Kreisringsegments über weniger als 340°, vorzugsweise über 40° bis 120°, besonders bevorzugt über 70° bis 90°, erstreckt. Ram tip according to claim 3, characterized in that a circular arc (12) of the circular segment or circular ring segment extends over less than 340°, preferably over 40° to 120°, particularly preferably over 70° to 90°. Rammspitze nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass eine Mehrzahl von Betonaustrittskanälen (10), vorzugsweise drei Betonaustrittskanäle (10), vorgesehen ist bzw. sind. Ram tip according to one of claims 1 to 4, characterized in that a plurality of concrete outlet channels (10), preferably three concrete outlet channels (10), is or are provided. 6. Rammspitze nach Anspruch 5, dadurch gekennzeichnet, dass jeweils zwei Betonaustrittskanäle (10) der Mehrzahl von Betonaustrittskanälen (10) im Querschnitt zur Einrammrichtung (E) entlang der Innenwandung (5) der Rammspitze (1 ) im Wesentlichen mit gleichen Abständen zueinander angeordnet sind. 6. Ramming tip according to claim 5, characterized in that two concrete outlet channels (10) of the plurality of concrete outlet channels (10) are arranged essentially at equal distances from one another in cross section to the ramming direction (E) along the inner wall (5) of the ramming tip (1). . 7. Rammspitze nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass an der Innenwandung (5) wenigstens eine radial nach innen ragende Stützvorrichtung (13) zur Zentrierung und/oder lagestabilen Fixierung des Rammpfahls (2) vorgesehen ist. 7. Ramming tip according to one of claims 1 to 6, characterized in that at least one radially inwardly projecting support device (13) is provided on the inner wall (5) for centering and / or positionally stable fixation of the driven pile (2). 8. Rammspitze nach Anspruch 7, dadurch gekennzeichnet, dass die wenigstens eine radial nach innen ragende Stützvorrichtung (13) als eine Mehrzahl von Stützrippen ausgebildet ist. 8. Ramming tip according to claim 7, characterized in that the at least one radially inwardly projecting support device (13) is designed as a plurality of support ribs. 9. Rammspitze nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass an der Innenwandung (5) der Rammspitze (1) wenigstens ein zweiter Auflagesteg (6') mit einer zweiten Auflagefläche (7') für eine Stirnseite (8') eines Pfahlendes (4') angeordnet ist, wobei in Einrammrichtung (E) der Abstand (T) der zweiten Auflagefläche (7') vom Rand (11) der Rammspitze (1) größer ist als der Abstand9. Ramming tip according to one of claims 1 to 8, characterized in that on the inner wall (5) of the ramming tip (1) there is at least one second support web (6 ') with a second support surface (7') for an end face (8'). Pile end (4 ') is arranged, the distance (T) of the second support surface (7') from the edge (11) of the ramming tip (1) being greater than the distance in the ramming direction (E). (T) der ersten Auflagefläche (7) vom Rand (11) der Rammspitze (1 ). (T) of the first support surface (7) from the edge (11) of the ram tip (1). 10. Rammspitze nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sich ein Außendurchmesser (D) der Rammspitze (1) in Einrammrichtung (E) im Wesentlichen kontinuierlich verringert. 10. Ramming tip according to one of claims 1 to 9, characterized in that an outer diameter (D) of the ramming tip (1) decreases substantially continuously in the ramming direction (E). 11. Rammspitze nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Rammspitze (1) einteilig ausgeführt ist. 11. Ramming tip according to one of claims 1 to 10, characterized in that the ramming tip (1) is made in one piece. 12. Rammspitze nach einem der Ansprüche 1 bis 11 , dadurch gekennzeichnet, dass die Rammspitze (1 ) zumindest teilweise, vorzugsweise vollständig, aus Gusseisen besteht. 12. Ramming tip according to one of claims 1 to 11, characterized in that the ramming tip (1) consists at least partially, preferably completely, of cast iron.
EP13716208.7A 2012-04-20 2013-04-12 Pile shoe Active EP2839083B9 (en)

Priority Applications (4)

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SI201330959T SI2839083T1 (en) 2012-04-20 2013-04-12 The tip was a pilot
DE502013008877.4A DE502013008877C5 (en) 2012-04-20 2013-04-12 PILE POINT
PL13716208T PL2839083T3 (en) 2012-04-20 2013-04-12 Pile shoe
HRP20180297TT HRP20180297T1 (en) 2012-04-20 2013-04-12 Pile shoe

Applications Claiming Priority (2)

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ATA485/2012A AT512161B1 (en) 2012-04-20 2012-04-20 Rammspitze for a substantially tubular, in particular hollow cylindrical, pile pile
PCT/EP2013/001069 WO2013156126A1 (en) 2012-04-20 2013-04-12 Drive point for a pile

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CN109580374A (en) * 2019-01-03 2019-04-05 同济大学 Evaluate the continuous wall trench underground of layer of sand containing artesian water Centrifugal Model Test for Stability device
DK3913143T3 (en) * 2020-05-18 2023-06-12 Rautaruukki Oyj DRIVE POINT AND ARRANGEMENT
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AT512161B1 (en) 2013-06-15
PT2839083T (en) 2018-02-26
TR201802478T4 (en) 2018-03-21
DK2839083T3 (en) 2018-02-19
EP2839083B9 (en) 2018-04-18
ES2660386T3 (en) 2018-03-22
WO2013156126A1 (en) 2013-10-24
HUE035815T2 (en) 2018-05-28
DE502013008877C5 (en) 2026-03-26
EP2839083B1 (en) 2017-11-22
US9725865B2 (en) 2017-08-08
US20150023739A1 (en) 2015-01-22
AT512161A4 (en) 2013-06-15
SI2839083T1 (en) 2018-04-30
PL2839083T3 (en) 2018-05-30
HRP20180297T1 (en) 2018-04-20

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