EP0465767B1 - Gründungspfahl aus armiertem Beton - Google Patents

Gründungspfahl aus armiertem Beton Download PDF

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Publication number
EP0465767B1
EP0465767B1 EP91104416A EP91104416A EP0465767B1 EP 0465767 B1 EP0465767 B1 EP 0465767B1 EP 91104416 A EP91104416 A EP 91104416A EP 91104416 A EP91104416 A EP 91104416A EP 0465767 B1 EP0465767 B1 EP 0465767B1
Authority
EP
European Patent Office
Prior art keywords
flat steel
foundation pile
reinforced concrete
steel profiles
concrete foundation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91104416A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0465767A1 (de
Inventor
Richard F. Dipl.-Ing. Forster
Friedemann A. Dipl.-Ing. Rudersdorf
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.)
Pfleiderer Verkehrstechnik GmbH and Co KG
Original Assignee
Pfleiderer Verkehrstechnik GmbH and Co KG
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 Pfleiderer Verkehrstechnik GmbH and Co KG filed Critical Pfleiderer Verkehrstechnik GmbH and Co KG
Publication of EP0465767A1 publication Critical patent/EP0465767A1/de
Application granted granted Critical
Publication of EP0465767B1 publication Critical patent/EP0465767B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
    • 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
    • E02D5/56—Screw 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
    • E02D5/58—Prestressed concrete piles

Definitions

  • the invention is directed to a foundation pile made of reinforced, primarily prestressed concrete with external threads and an internal cavity for engaging the drill pipe applying the torsional force (see e.g. EP-A-0 127221).
  • the endeavor is therefore aimed at designing foundation piles of the type described at the outset in such a way that they can be produced using the known centrifugal technology in a cost-saving manner and in a quality which cannot be achieved with the production methods used hitherto. It is all about the quality of the piles to improve in that the surface quality is significantly improved and a high degree of crack freedom is achieved.
  • At least two flat steel profiles are fastened axially parallel in such a foundation pile in the pile wall at approximately the same angular distance, which project freely with about half their width into the inner cavity serving to engage the drill pipe.
  • the measure according to the invention assumes that such flat steel profiles can be precisely fixed in the centrifugal shape without major difficulties, so that when the mast is ejected, the interior of a perfectly circular cross section practically arises by itself, the flat steel profiles being anchored in the pile wall in such a way that they are anchored are anchored in the wall at about half their width and protrude into the inner cavity of the pile with the other half of their width.
  • a mast made in this way has all the advantages of centrifugal technology. It is practically crack-free and has a particularly high surface quality.
  • the threads can also be formed in a centrifugal shape of a quality not previously known.
  • the invention opens up the possibility in a simple manner of arranging the flat steel profiles in the area bearing the outer threads. In this way, as is known, the torsional forces can be transferred particularly well to the pile.
  • Another alternative is that the flat steel profiles are arranged in the upper end region of the pile. This configuration enables better handling when screwing in and allows the use of a shorter drill pipe.
  • a further embodiment of the invention are on the flat steel profiles in the area of their upper end in the inside protruding part recesses arranged for engagement of outer lugs attached to the drill pipe.
  • the drill pipe is inserted into the inner cavity of the pile until the lugs of the drill pipe face each other in recesses in the flat steel profiles.
  • the lugs engage in the recesses and, to a certain extent, lead to a connection between the drill pipe and flat steel profiles according to the bayonet lock principle.
  • tensile forces can also be transmitted from the drill pipe to the foundation pile in order to prevent the pile from being over-tightened when the torsional force is applied.
  • the drill pipe is designed such that it approximately fills the inner cavity of the pile and has longitudinal incisions for engaging the flat steel profiles. It goes without saying that these cuts and their arrangement correspond to the number and position of the flat iron profiles in the inner cavity of the pile. In this embodiment, the torsional force acts over a considerable length of the pile.
  • An alternative embodiment provides that the diameter of the drill pipe is smaller than the radial distance between the flat steel profiles and that external drivers for tangential attack on and / or for engagement in the recesses of the flat steel profiles are arranged on the drill pipe. In the former case, there is a kind of point Attack of the drill pipe on the flat steel profiles anchored in the wall of the pile.
  • the invention provides that the flat steel profiles embedded in the wall are fixed on their outer circumference by a plurality of connecting rings spaced apart in the axial direction.
  • the foundation pile 1 consists of a shaft 2 made of concrete. It is manufactured using the centrifugal process and has an external thread 4 in the area of its lower end 3 and a base plate 5 at its lower end, to which cutting knives or the like 6 can be attached.
  • two eyelets 32 are attached to the head 31 of the pile 1 and are used to handle the pile 1.
  • the wall 7 of the pile 1 has a thickness 8 which, in the embodiment shown in the drawing, projects beyond the threads 4 on the outside in the region of the lower end 3 becomes.
  • the wall 7 is provided with a reinforcement 9.
  • two flat steel profiles 10 are attached so that they are embedded with their outer half 11 in the wall 7, while their inner half 12 by the width 13 in the inner cavity 14 of the pile 1 protrudes.
  • the flat steel profiles 10 are welded to the base plate 5 at their lower end 15 in the embodiment shown here. They are also connected by three steel rings 16, 17, 18 arranged at a distance from one another and thus fixed against one another.
  • the angular spacing of the two flat steel profiles 10 is in each case 180 ° in the embodiments shown in the drawing.
  • a torque is applied to the foundation pile 1 through the drill string 20, which approximately fills the inner cavity 14 in the embodiment shown in FIG. 4.
  • the drill pipe is provided with a notch 21, which runs in the longitudinal direction and is brought into alignment with the flat steel profiles 10 when the drill pipe 20 is retracted, so that the profiles 10 when the drill pipe 20 is lowered into the notches 21 of the Intervene in the drill pipe.
  • a much thinner drill pipe 22 is used, on the outer wall 23 of which two opposing outer lugs 24 are fastened which, after the drill pipe 22 has been retracted accordingly, act on the flat steel profiles 10 during its rotation and apply their torsional force to them Profiles 10 and thus can be transferred to the shaft 2 of the pile 1.
  • the diameter 25 of this drill pipe 22 is slightly smaller than the distance 26 between the two flat steel profiles 10.
  • FIG. 6 shows an embodiment in which, in the area of the upper end 27 of the flat steel profiles 10, incisions 28 are made in an opposite arrangement in the part 12 of the flat steel profiles 10 projecting into the inner cavity.
  • outer lugs 29 are fastened, which are intended to engage in the incisions 28 in order to be able to transmit a corresponding tensile force in the direction of arrow 30 to the pile 1 from the drill string.

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)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Foundations (AREA)
EP91104416A 1990-06-29 1991-03-21 Gründungspfahl aus armiertem Beton Expired - Lifetime EP0465767B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4020757 1990-06-29
DE4020757A DE4020757C2 (de) 1990-06-29 1990-06-29 Gründungspfahl aus armiertem Beton sowie Verfahren zu seiner Herstellung

Publications (2)

Publication Number Publication Date
EP0465767A1 EP0465767A1 (de) 1992-01-15
EP0465767B1 true EP0465767B1 (de) 1993-09-15

Family

ID=6409351

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91104416A Expired - Lifetime EP0465767B1 (de) 1990-06-29 1991-03-21 Gründungspfahl aus armiertem Beton

Country Status (10)

Country Link
US (1) US5188485A (enrdf_load_stackoverflow)
EP (1) EP0465767B1 (enrdf_load_stackoverflow)
AT (1) ATE94600T1 (enrdf_load_stackoverflow)
AU (1) AU634067B2 (enrdf_load_stackoverflow)
DE (3) DE4020757C2 (enrdf_load_stackoverflow)
DK (1) DK0465767T3 (enrdf_load_stackoverflow)
ES (1) ES2044637T3 (enrdf_load_stackoverflow)
MY (1) MY106382A (enrdf_load_stackoverflow)
NZ (1) NZ238737A (enrdf_load_stackoverflow)
YU (1) YU107991A (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5374140A (en) * 1990-07-03 1994-12-20 Standish; Peter N. Drillable ground support bolt
US6019549A (en) * 1996-06-11 2000-02-01 Corrosion Control International Llc Vortex shedding strake wraps for submerged pilings and pipes
DE19743415A1 (de) * 1997-10-01 1999-06-10 Josef Dipl Ing Behrens Selbstbohrender Betonpfahl
US6030150A (en) * 1998-02-25 2000-02-29 Dana A. Schmednecht Method and apparatus for constructing subterranean walls comprised of granular material
CN1298939C (zh) 1998-03-10 2007-02-07 新日本制铁株式会社 旋转埋设桩
US6951437B2 (en) * 2004-02-20 2005-10-04 Hall David B Foundation support system and method
CN100447346C (zh) * 2005-01-18 2008-12-31 周兆弟 筋状管桩
CN115030213B (zh) * 2022-05-26 2023-04-11 上海勘测设计研究院有限公司 一种适用于海上风电基桩的工装以及应用方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US137744A (en) * 1873-04-08 Ichabod m
US1907811A (en) * 1931-07-01 1933-05-09 August A Hollos Anchor post
US2080181A (en) * 1935-04-02 1937-05-11 Gideon D Miller Coal undercutting machine
US2088759A (en) * 1937-02-04 1937-08-03 Central Mine Equipment Co Mining drill
FR843499A (fr) * 1938-09-15 1939-07-04 Pieu-taraud tubulaire en béton armé à pointe indépendante amovible et dispositifpar rotation et frappe combinées
US2210296A (en) * 1939-09-23 1940-08-06 Hardsocg Mfg Company Means for connecting miners' extension drills
US2372269A (en) * 1942-03-12 1945-03-27 Emil V Lapezenski Theft resisting nut and wrench combination
US3295572A (en) * 1959-05-18 1967-01-03 Hi Shear Corp Screw and screw driver coupling
US3178210A (en) * 1963-12-11 1965-04-13 Mobile Drilling Co Inc Hollow auger
US3369441A (en) * 1966-05-04 1968-02-20 Anchor Engineering Co Fastener with tapered tool engaging surfaces
US4239419A (en) * 1977-10-27 1980-12-16 Gillen William F Jr Precast concrete threaded pilings
JPS5854211B2 (ja) * 1979-10-31 1983-12-03 日本サミコン株式会社 ねじり貫入式ｐｃらせん杭
GB2067633B (en) * 1980-01-14 1983-07-27 Lee P Concrete foundation pile
IT1147107B (it) * 1981-04-17 1986-11-19 Fondedile Spa Procedimento per l'esecuzione di cavi anulari per scopi diversi, tra i quali, costruzione di pali di fondazione ad anima cava ed attrezzo relativo
NL8301556A (nl) * 1983-05-03 1984-12-03 Pieter Faber Betonnen funderingspaal, inrichting voor het vervaardigen en inrichting voor het in de grond drijven daarvan.
US4543015A (en) * 1983-09-14 1985-09-24 Kruse William E Pile having wedge former
JPS60246923A (ja) * 1984-05-18 1985-12-06 Daido Concrete Kogyo Kk 基礎くいの回転装置
IL76557A0 (en) * 1985-10-03 1986-02-28 Lipsker Eng Method relating to pile arrangement
DE3617025A1 (de) * 1986-05-21 1987-11-26 Delmag Maschinenfabrik Vorgefertigter betonpfahl sowie verfahren und vorrichtung zu seinem einbringen ins erdreich
DE3624943A1 (de) * 1986-07-23 1988-01-28 Delmag Maschinenfabrik Vorgefertigtes betonteil sowie verfahren zum einbringen eines solchen in das erdreich

Also Published As

Publication number Publication date
NZ238737A (en) 1993-05-26
DE4020757C1 (enrdf_load_stackoverflow) 1991-12-12
DK0465767T3 (da) 1994-01-03
ATE94600T1 (de) 1993-10-15
DE4020757C2 (de) 1996-08-01
ES2044637T3 (es) 1994-01-01
DE59100377D1 (de) 1993-10-21
AU7825791A (en) 1992-01-02
YU107991A (sh) 1995-03-27
MY106382A (en) 1995-05-30
US5188485A (en) 1993-02-23
DE9007428U1 (de) 1991-09-19
EP0465767A1 (de) 1992-01-15
AU634067B2 (en) 1993-02-11

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