EP0253988A1 - Pièce en béton préfabriqué et méthode pour introduire une telle pièce dans le sol - Google Patents

Pièce en béton préfabriqué et méthode pour introduire une telle pièce dans le sol Download PDF

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Publication number
EP0253988A1
EP0253988A1 EP87107458A EP87107458A EP0253988A1 EP 0253988 A1 EP0253988 A1 EP 0253988A1 EP 87107458 A EP87107458 A EP 87107458A EP 87107458 A EP87107458 A EP 87107458A EP 0253988 A1 EP0253988 A1 EP 0253988A1
Authority
EP
European Patent Office
Prior art keywords
concrete part
tool
segments
concrete
recess
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Withdrawn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
EP87107458A
Other languages
German (de)
English (en)
Inventor
Magnus Dipl.-Ing. Mauch
Hans Von Dobbeler
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.)
Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
Original Assignee
Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
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 Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co filed Critical Delmag Maschinenfabrik Reinhold Dornfeld GmbH and Co
Publication of EP0253988A1 publication Critical patent/EP0253988A1/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Withdrawn legal-status Critical Current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
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/22—Placing by screwing down
    • 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

Definitions

  • the invention relates to a prefabricated pile or tubular concrete part and a method for introducing such into the ground.
  • a concrete part still has to withstand high loads after penetrating the soil, e.g. when it is a hollow concrete pile, which essentially serves only as a lost formwork, into which in-situ concrete and the necessary reinforcement is placed, or when a hollow concrete part is to serve as a section of a pipeline.
  • the concrete part would then have to receive an expensive reinforcement, which is only required during the screwing into the ground, but is oversized or even completely unnecessary for the intended permanent use of the pile.
  • the present invention is intended to develop a prefabricated concrete part in accordance with the preamble of claim 1 in such a way that it is buried in the ground without expensive reinforcement can be screwed in richly.
  • a screwing tool is inserted into the non-circular cross-section in the central axial recess, which can be subjected to high torsion. Since this tool is used repeatedly, higher tool costs can be accepted.
  • the development of the invention according to claim 2 is advantageous with regard to avoiding linear contact between the screwing tool and the concrete part, with regard to an edge-free inner surface of the concrete part and with regard to a good absorption of ring stresses.
  • the development of the invention according to claim 5 is advantageous with regard to a low weight, easy handling and low manufacturing costs of the insertion tool.
  • part of the displaced ground can be taken up via the interior of the screwing tool.
  • a dam 10 is indicated in FIG. 1, through which a pipeline having a large diameter is to be laid. This is done using a prefabricated concrete pipe, generally designated 12, which positively receives a screwing tool, generally designated 14, which is rotated around its axis (arrow 18) using an only schematically indicated drive head 16 and is advanced along its axis (arrow 20) .
  • the concrete pipe 12 has an essentially cylindrical outer surface 22, on which a helical rib 24 is formed.
  • the latter has an essentially triangular cross section and gives the concrete pipe 12 the property of a self-tapping screw in the ground.
  • the concrete pipe At its front end, located on the right in FIG. 1, the concrete pipe has a tip 26 which displaces the soil and which - as shown - can be provided with a cutting edge 28.
  • the concrete pipe 12 has an internal axial recess 30 which extends from the rear end of the concrete pipe 12 in FIG. 1 to the tip 26 thereof.
  • the recess 30 has a cross-sectional area that is delimited by an ellipse.
  • the ratio of the ellipse half axes is between 0.7 and 0.9.
  • the outer contour of the transverse cross-sectional area of the screw-in tool 14 corresponds to a small clearance fit, taking into account the usual surface roughness of prefabricated concrete parts and the dirt on the surface of the screw-in tool 14 which cannot be avoided in practice. This means that the outer surface of the screwing tool 14 comes into substantial flat contact with the inner wall of the recess 30 after rotation by a small angle. In this way, the power transmission between the screwing tool 14 and the concrete pile 12 is distributed in the circumferential direction, and mainly ring stresses and radial loads are generated in the material of the concrete pipe 12, which the concrete pipe 12 can absorb due to its shape.
  • the screwing tool 14 is in turn a hollow cylinder with an elliptical cross section, the wall thickness of the screwing tool 14 being chosen so large that the torque transmission to the tip of the concrete pipe 12 takes place predominantly or exclusively via the screwing tool. In this way, the various sections of the concrete pipe 12 lying axially one behind the other are largely freed from the task of torque transmission.
  • the insertion tool 14 is hollow, not only is its weight kept small, which is advantageous both in terms of ease of use and in view of low manufacturing costs, and one can also pass through the interior of the insertion tool 14 from the top of the concrete pipe Take up 12 accumulating soil when the concrete pipe 12 is formed with an open end in a modification of the embodiment shown in Figure 1.
  • the drive head 16 can be moved along the desired tube axis by a corresponding slide.
  • the dam 10 When the concrete pipe 12 is screwed into the ground, in the exemplary embodiment considered here the dam 10, the angular speed and the feed speed of the drive head 16 are coordinated with one another in a manner corresponding to the slope of the rib 24. If the concrete pipe 12 has been screwed into the ground to the desired length, in the exemplary embodiment considered here, it has been completely screwed through the dam 10, then the rotary movement of the drive head 16 is terminated and the screwing tool 14 is removed from the concrete pipe in the opposite direction by arrows 20 in the opposite direction 12 pulled out. After removal of the tip 26, one then has a piece of pipeline crossing the dam 10, which can be connected to conventional external lines. As can be seen from FIG. 2, this piece of pipeline then has a smooth internal cross section, which is well suited for the conveyance of contaminated liquids.
  • FIG. 3 shows a transverse section through a modified concrete pipe, in which the inner axial recess 30 has a hexagonal cross section.
  • This modified concrete pipe is used together with a correspondingly modified screwing-in tool which has a hexagonal cross section matching the recess 30.
  • the screwing-in tool is expediently composed of segments of the same length, which in turn are held together via torque-transmitting, releasable connections and are each applied in accordance with the progress of the introduction of the segments.
  • axially somewhat deformable compensating elements are preferably inserted between the individual pile or tube segments, while cooperating stops on the successive tool segments ensure that the successive segment outer surfaces are exactly aligned with one another, so that the entire insertion tool is unhindered from the several segments composite pile or tube can be pulled out.

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)
EP87107458A 1986-07-23 1987-05-22 Pièce en béton préfabriqué et méthode pour introduire une telle pièce dans le sol Withdrawn EP0253988A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3624943 1986-07-23
DE19863624943 DE3624943A1 (de) 1986-07-23 1986-07-23 Vorgefertigtes betonteil sowie verfahren zum einbringen eines solchen in das erdreich

Publications (1)

Publication Number Publication Date
EP0253988A1 true EP0253988A1 (fr) 1988-01-27

Family

ID=6305827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87107458A Withdrawn EP0253988A1 (fr) 1986-07-23 1987-05-22 Pièce en béton préfabriqué et méthode pour introduire une telle pièce dans le sol

Country Status (2)

Country Link
EP (1) EP0253988A1 (fr)
DE (1) DE3624943A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220689A (en) * 1988-07-15 1990-01-17 Helix Reinforcements Soil reinforcement
DE4020757C1 (fr) * 1990-06-29 1991-12-12 Pfleiderer Verkehrstechnik Gmbh & Co Kg, 8430 Neumarkt, De
CN109630040A (zh) * 2018-12-10 2019-04-16 李健 一种新型长螺旋钻杆及混凝土螺纹桩施工方法
EP3936670A1 (fr) * 2020-07-07 2022-01-12 Alphabeton AG Pieu en béton et procédé d'accouplement de deux pieux en béton

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369388A1 (fr) * 1976-11-02 1978-05-26 Gillen William F Pieux a vis en beton, moules d'avance
EP0127221A1 (fr) * 1983-05-03 1984-12-05 Pieter Faber Pieu de fondation en béton et dispositif pour enfoncer celui-ci dans le sol
JPS60102416A (ja) * 1983-11-07 1985-06-06 Masukawa Kensetsu Kk ねじ込み杭

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR843499A (fr) * 1938-09-15 1939-07-04 Pieu-taraud tubulaire en béton armé à pointe indépendante amovible et dispositifpar rotation et frappe combinées
GB849413A (en) * 1957-02-13 1960-09-28 Gustave Grimaud Improved foundation pile
US3277968A (en) * 1963-06-28 1966-10-11 Wood Marc Sa Screw piles
US3842608A (en) * 1972-11-28 1974-10-22 L Turzillo Method and means for installing load bearing piles in situ
NL7712013A (nl) * 1976-11-02 1978-05-05 William F Gillen Jr Gewapende betonpaal.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2369388A1 (fr) * 1976-11-02 1978-05-26 Gillen William F Pieux a vis en beton, moules d'avance
EP0127221A1 (fr) * 1983-05-03 1984-12-05 Pieter Faber Pieu de fondation en béton et dispositif pour enfoncer celui-ci dans le sol
JPS60102416A (ja) * 1983-11-07 1985-06-06 Masukawa Kensetsu Kk ねじ込み杭

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 252 (M-420)[1975], 9. Oktober 1985; & JP-A-60 102 416 (MASUKAWA KENSETSU K.K.) 06-06-1985 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220689A (en) * 1988-07-15 1990-01-17 Helix Reinforcements Soil reinforcement
DE4020757C1 (fr) * 1990-06-29 1991-12-12 Pfleiderer Verkehrstechnik Gmbh & Co Kg, 8430 Neumarkt, De
CN109630040A (zh) * 2018-12-10 2019-04-16 李健 一种新型长螺旋钻杆及混凝土螺纹桩施工方法
EP3936670A1 (fr) * 2020-07-07 2022-01-12 Alphabeton AG Pieu en béton et procédé d'accouplement de deux pieux en béton
CH717618A1 (de) * 2020-07-07 2022-01-14 Kibag Bauleistungen Ag Betonpfahlelement sowie Verfahren zum Zusammenkuppeln zweier Betonpfahlelemente.

Also Published As

Publication number Publication date
DE3624943A1 (de) 1988-01-28

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Inventor name: MAUCH, MAGNUS, DIPL.-ING.

Inventor name: VON DOBBELER, HANS