EP2148011A1 - Elément de poteau - Google Patents

Elément de poteau Download PDF

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Publication number
EP2148011A1
EP2148011A1 EP08013462A EP08013462A EP2148011A1 EP 2148011 A1 EP2148011 A1 EP 2148011A1 EP 08013462 A EP08013462 A EP 08013462A EP 08013462 A EP08013462 A EP 08013462A EP 2148011 A1 EP2148011 A1 EP 2148011A1
Authority
EP
European Patent Office
Prior art keywords
pile
pile element
sleeve
element according
shaft
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.)
Withdrawn
Application number
EP08013462A
Other languages
German (de)
English (en)
Inventor
Erich Ing. Steinlechner
Hermann Bmstr.Dipl.-HTL-Ing. Schrattenthaler
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 Spezialtiefbau GmbH
Original Assignee
Bauer Spezialtiefbau 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 Spezialtiefbau GmbH filed Critical Bauer Spezialtiefbau GmbH
Priority to EP08013462A priority Critical patent/EP2148011A1/fr
Publication of EP2148011A1 publication Critical patent/EP2148011A1/fr
Withdrawn legal-status Critical Current

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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
    • E02D5/22—Piles
    • E02D5/24—Prefabricated piles
    • 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
    • E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
    • E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments

Definitions

  • the invention relates to a pile element for constructing a driven pile with a shank, a foot part which is provided at the lower end of the shank, and a head part which is arranged at the upper end of the shank and which has a sleeve-shaped receptacle for receiving a foot part of an adjacent pile element Preamble of claim 1.
  • Such pile elements serve for a modular construction of a pile pile, wherein first a first pile element is driven into the ground by means of a piling device. According to the desired length another pile element is inserted with its foot in the head part of the already driven pile element. Then, the patch pile element is also driven with the pile driver in the ground, the lower pile element is further lowered. This process can be repeated with additional pile elements until a pile pile of the desired length is formed.
  • Such pile elements are made to ensure the necessary strength for the ramming as metal castings from a ductile cast iron, such as ductile iron, so that the specially shaped head and foot parts are stable. Due to the casting technology-related need to avoid larger wall thickness jumps the freedom of design is limited in the formation of the pile element. Overall, this leads to a relatively complex production of such a metal pile element.
  • the invention has for its object to provide a pile element, which is particularly stable and at the same time efficiently produced.
  • the shank is formed of a concrete material and that the head part is at least partially formed of metal.
  • a basic idea of the invention can be seen in producing a pile element no more than a one-piece cast metal pile but as a composite part.
  • individual areas of the pile element can be formed from a respective material corresponding to the requirements.
  • the production of the rod-shaped shaft made of a concrete material is particularly suitable for the absorption of compressive forces.
  • the head part which is also subject to tensile and bending stresses due to its function, is formed partially or completely from metal.
  • such a particularly stable pile element can be produced, which is also efficient and inexpensive to produce, since no complex metal casting process for a relatively large pile element is more necessary.
  • a preferred embodiment of the pile element according to the invention is that the sleeve-shaped receptacle of the head part has an opening which is conical, is formed to open upwards, and that the foot part is formed correspondingly conical for insertion into the opening of the receptacle.
  • the sleeve-shaped receptacle can have the same outer diameter as the adjacent shaft part.
  • the head part is funnel-shaped overall in the region of the receptacle, so that an approximately constant wall thickness remains in the region of the conical receiving opening.
  • This conical opening within the sleeve-shaped receptacle is formed so that the correspondingly formed, pointed or wedge-shaped downwardly tapering foot can fit, to form a frictional connection, can be added.
  • the inclination of the conical surface may be preferably 1:10 to 1:25, whereby a good clamping effect is achieved.
  • a particularly stable design of the pile element is achieved according to the invention in that a sleeve made of metal is provided for forming the head part.
  • This sleeve may preferably form the entire head part or only areas thereof, the remaining areas may also be formed of concrete material.
  • This sleeve can be made in a simple manner as a cast or forged cast iron, steel or other metal, since the head part forms only a relatively small part of the pile element, which usually has a length between 2 to 8 m.
  • the sleeve has an annular inner shoulder on its inner side and that the foot part has an annular abutment surface, which is designed to contact the inner shoulder.
  • the annular inner shoulder on the head part serves as a stop which limits the maximum insertion depth of the adjacent foot part in the sleeve-shaped receptacle.
  • the risk of destroying the sleeve-shaped receptacle is largely excluded by excessive clamping forces.
  • the sleeve-shaped receptacle has an annular Umschnürungswandung and / or a tensile reinforcement for connection to the shaft of the concrete material.
  • the annular Umschnürungswandung can be the metal sleeve on the head part, which encloses and stabilizes an inner sleeve made of concrete.
  • the Umschnürungswandung may alternatively or additionally be arranged in the transition region of the metal part on the head part, where this merges into the shank of concrete. This also increases the stability of the pile element.
  • a tensile reinforcement also called a tensile tensile reinforcement
  • This splitting tensile reinforcement may be an annularly arranged perforated plate, a helix, a steel grid or a tube which extends concentrically to the center axis of the pile element in the region of the shank made of concrete.
  • the tensile reinforcement can be welded to the sleeve or attached in any other way. This tensile reinforcement on the one hand creates a particularly stable connection to the concrete material and ensures on the other hand, a good and gentle power transmission of the ramming forces from the head part in the shaft of the pile element.
  • an outer sleeve made of metal is provided on the foot part.
  • This outer sleeve is in particular conically shaped and forms the contact and / or clamping surface when inserted into a head portion of an adjacent pile element.
  • this longitudinal ribs and grooves may be provided in the two adjacent head or foot parts, so that defined Vermoslagen or anti-rotation are guaranteed.
  • holes for fastening screws or retaining bolts may be provided in the head and / or foot parts.
  • the concrete material is a high-strength concrete, in particular a UHPC concrete.
  • High-strength concrete materials provide sufficient stability even with larger ramming forces.
  • Strength values of 100 to 800 MPa or N / mm 2 can be achieved in particular with a UHPC (Ultra High Performance Concrete) concrete, ie an ultra-high-strength concrete.
  • UHPC Ultra High Performance Concrete
  • This allows the use of the pile elements in a comparable manner as the conventional metal casting piles.
  • a particular advantage is that concrete is easier and more energy-efficient to process than a metal casting material.
  • the strength of the concrete shank part is further increased according to the invention in that the concrete material fibers, preferably in a proportion of 0.5 to 5 vol .-%, comprises.
  • the fibers may in particular be formed from steel, carbon, plastic, glass, etc., and preferably have a length of 5 to 50 mm and a diameter of 0.01 to 0.5 mm.
  • reinforcing elements are provided in the concrete material.
  • the shaft can be formed as a solid material part.
  • the shaft is tubular with a preferred wall thickness between 10 mm to 200 mm. So it is sufficient for a tubular shaft with an internal cavity for stability while saving weight.
  • the shaft can be formed on its inside or outside in cross-section circular or angular, in particular four or polygonal. An angular design of the concrete shaft and possibly the adjacent header and footer is both from a technical view and to achieve an additional anti-rotation of the Pile in the soil advantageous.
  • the stem may be shaped as a straight rod or tube or slightly conical, tapering downwards.
  • a holder for a pile tip is formed on the foot part.
  • the pile tip which may be made of metal or concrete, is provided for the construction of the pile pile on the first or lowermost pile element.
  • the holder may be a simple receiving opening on the underside of the foot part.
  • the holder In a tubular shaft, the holder is formed in a simple manner through the interior of the tubular body.
  • the pile tip can have outlet openings, so that a liquid or a suspension is introduced through the continuous interior space inside the pile element through the pile tip into the soil.
  • a cement paste, a mortar / concrete or another hardening suspension can be introduced into the surrounding soil via the pile tip.
  • This suspension can act during the introduction as a kind of lubricant, so that you can work with lower ramming forces. After the ramming pile has been lowered, this suspension, in particular the cement paste, can harden, so that the skin friction of the pile pile increases towards the ground.
  • the invention also includes a foundation piling pile having at least one of the pile members described above.
  • a pile pile can be modularly constructed from a plurality of the described pile elements, so that in a simple and economical way, a piling pile with any length can be created.
  • the individual pile elements can each have the same length.
  • the lowermost or the uppermost pile element may have a different dimensioning or design according to a predetermined total length of the pile pile.
  • a shaft 20 is tubular with a continuous cylindrical interior 22 formed of a high strength concrete material. Integral with the shaft 20, the foot part 30 is formed, through which the outer diameter of the shaft 20 is gradually tapered. As a result, an outer cone surface 36 is created, which tapers downwardly to a horizontally extending annular stop surface 32.
  • a head part 40 with a sleeve-shaped receptacle 42 is formed from a metal material.
  • the upper part of the head part 40 comprises a conically shaped sleeve 46 with an opening 44, wherein on the inside of the sleeve 46, an inner cone surface 45 is formed.
  • the inner cone surface 45 of the head part 40 is formed to fit the outer cone surface 36 of the foot part 30, so that a further pile element 10 can be connected to a foot part 30 by clamping with the head part 40 to form a modular piling pile.
  • the inner cone surface 45 is closed on its underside by an annular inner shoulder 48 which projects radially inwardly from the sleeve 46.
  • the radial extent of the inner shoulder 48 is adapted to the wall thickness of the tubular shaft 20.
  • a metallic cylinder is attached as a tensile reinforcement 54 by means of a welded joint 58.
  • the tensile reinforcement 54 serves to increase the contact area between the head portion 40 made of metal and the molded shank of concrete material, so that a stable connection between the two parts is formed.
  • the cylinder forming the tension reinforcement 54 can additionally be provided with through-holes or formed from a perforated plate.
  • the second embodiment of a pile element 10 according to the invention Fig. 2 is largely according to the pile element 10 of Fig. 1 educated.
  • the head part 40 has a lower Umschnürungswandung 52 below adjacent to the inner shoulder 48. This is formed integrally with the metallic sleeve 46, such as by casting from a ductile cast iron or by forging.
  • the lower Umschnürungswandung 52 stabilizes the transition region between the larger diameter head portion 40 and the shaft 20.
  • the lower Umschnürungswandung 52 has the same outer diameter as the shaft 20.
  • the wall thickness of the annular lower Umschnürungswandung 52 is formed so that on the other hand, radially inwardly projecting inner shoulder 48, a tensile reinforcement 54 can be welded.
  • a tensile reinforcement 54 can be welded.
  • contour elements 56 on the lower Umschnürungswandung are provided as contour elements 56 on the lower Umschnürungswandung.
  • FIG. 2 An insertable pile tip 70 is also shown, which is usually used in the production of a modular pile pile in the first or lowermost pile element 10.
  • the pile tip 70 has a conical tip portion 71 which widened up to an outer diameter which corresponds approximately to the outer diameter of the annular abutment surface 32 of the foot portion 30, but may also be larger in diameter. Adjacent to the tip portion 71, a cylindrical tip shaft 74 is provided, the outer diameter of which is formed to match the inner diameter of the inner cavity 22 of the tubular shaft 20. In particular, a slight interference fit may be provided. Due to the diameter jump between the tip shaft 74 and the tip portion 71 an outer shoulder 72 is formed through which the pile tip 70 is held when driving the pile element 10 to the annular abutment surface 32 of the foot part 30.
  • the pile tip 70 which is preferably formed from a cast metal or a concrete casting material, has an injection channel 76, through which during or after ramming a hardening suspension, in particular cement paste, through the pile element 10 into the ground below the pile tip 70 can be introduced is.
  • the tip 70 could also be designed such that suspension exits laterally between the tip 70 and the shaft 20 at the end of the shaft 20. This suspension is used for lubricating the ramming of the pile 10 and to increase the skin friction after curing of the suspension.
  • the third embodiment of a pile element 10 according to the invention Fig. 3 is largely according to the pile element 10 of Fig. 2 educated. In a modification to this is in the embodiment according to Fig. 3
  • the foot part 30 is reinforced and it can in principle higher clamping forces when mating of two pile elements 10 can be achieved.
  • the pile element 10 according to Fig. 4 are shaft 20 and foot part 30 as in the pile element 10 of Fig. 3 educated. Also, the shape of the head portion 40 of the pile element 10 according to Fig. 4 corresponds to that of the pile element 10 of Fig. 3 , but a different choice of material is provided.
  • the sleeve-shaped, conical receptacle 42, the annular shoulder 48 and the lower Umschnürungswandung 52 of the head part 40 are also formed of a high-strength concrete material, wherein on the funnel-shaped receptacle 42, a metallic sleeve 46 is provided, which is arranged on an upper Umschnürungswandung 50.
  • the sleeve-shaped upper Umschnürungswandung 50 is firmly integrated together with the cylindrical tensile reinforcement 54 made of metal by casting with the concrete material in the head part 40.
  • the head part 40 could also by a Bonded with cement paste or by screw fasteners to the shaft 20 are connected.
  • the concrete part of the head part 40 can also be cast integrally with the shaft 20.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)
EP08013462A 2008-07-25 2008-07-25 Elément de poteau Withdrawn EP2148011A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08013462A EP2148011A1 (fr) 2008-07-25 2008-07-25 Elément de poteau

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08013462A EP2148011A1 (fr) 2008-07-25 2008-07-25 Elément de poteau

Publications (1)

Publication Number Publication Date
EP2148011A1 true EP2148011A1 (fr) 2010-01-27

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ID=40042642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08013462A Withdrawn EP2148011A1 (fr) 2008-07-25 2008-07-25 Elément de poteau

Country Status (1)

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EP (1) EP2148011A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014100395A1 (de) 2014-01-15 2015-07-16 König Gmbh Bohrspitze aus ultrahochfestem Beton für Pfahlgründung
WO2016142540A1 (fr) * 2015-03-12 2016-09-15 Conseil Service Investissements Procédé de moulage d'éléments tubulaires en matériau comportant du ciment et pieu ainsi obtenu
US10047490B2 (en) * 2016-06-28 2018-08-14 Tiroler Rohre GmbH Drive point for a pile
CN111364451A (zh) * 2020-04-13 2020-07-03 上海市城市建设设计研究总院（集团）有限公司 无筋超高性能混凝土预制管桩及施工方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167499A (en) 1966-08-16 1969-10-15 Bermingham Construction Ltd Sectional Pile Joint
JPS57130626A (en) * 1981-02-06 1982-08-13 Nippon Samikon Kk Manufacture of tortional penetration type pc spiral pile and its structure
CH671257A5 (en) 1987-07-17 1989-08-15 Sacac Schleuderbetonwerk Ag Mechanical connection for concrete foundation post sections - consists of conical mating surfaces in terminal rings accelerating assembly
EP0691434A1 (fr) * 1994-07-07 1996-01-10 BICC Public Limited Company Pieux en béton modulaires

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1167499A (en) 1966-08-16 1969-10-15 Bermingham Construction Ltd Sectional Pile Joint
JPS57130626A (en) * 1981-02-06 1982-08-13 Nippon Samikon Kk Manufacture of tortional penetration type pc spiral pile and its structure
CH671257A5 (en) 1987-07-17 1989-08-15 Sacac Schleuderbetonwerk Ag Mechanical connection for concrete foundation post sections - consists of conical mating surfaces in terminal rings accelerating assembly
EP0691434A1 (fr) * 1994-07-07 1996-01-10 BICC Public Limited Company Pieux en béton modulaires

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014100395A1 (de) 2014-01-15 2015-07-16 König Gmbh Bohrspitze aus ultrahochfestem Beton für Pfahlgründung
WO2016142540A1 (fr) * 2015-03-12 2016-09-15 Conseil Service Investissements Procédé de moulage d'éléments tubulaires en matériau comportant du ciment et pieu ainsi obtenu
FR3033514A1 (fr) * 2015-03-12 2016-09-16 Conseil Service Investissements Procede de moulage d'elements tubulaires en materiau comportant du ciment et pieu ainsi obtenu
US10047490B2 (en) * 2016-06-28 2018-08-14 Tiroler Rohre GmbH Drive point for a pile
CN111364451A (zh) * 2020-04-13 2020-07-03 上海市城市建设设计研究总院（集团）有限公司 无筋超高性能混凝土预制管桩及施工方法

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