EP0193513A1 - Verfahren zum Herstellen eines Pfahles aus Beton oder ähnlichem Material mit Hilfe eines Bohrrohres mit Flügeln und Bohrrohr dafür - Google Patents

Verfahren zum Herstellen eines Pfahles aus Beton oder ähnlichem Material mit Hilfe eines Bohrrohres mit Flügeln und Bohrrohr dafür Download PDF

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Publication number
EP0193513A1
EP0193513A1 EP86870003A EP86870003A EP0193513A1 EP 0193513 A1 EP0193513 A1 EP 0193513A1 EP 86870003 A EP86870003 A EP 86870003A EP 86870003 A EP86870003 A EP 86870003A EP 0193513 A1 EP0193513 A1 EP 0193513A1
Authority
EP
European Patent Office
Prior art keywords
tube
fins
jacking
driving
ground
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86870003A
Other languages
English (en)
French (fr)
Inventor
Petrus Johannes Cornelius M. De Kort
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.)
Compagnie Internationale des Pieux Armes Frankignoui SA
Original Assignee
Compagnie Internationale des Pieux Armes Frankignoui SA
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 Compagnie Internationale des Pieux Armes Frankignoui SA filed Critical Compagnie Internationale des Pieux Armes Frankignoui SA
Publication of EP0193513A1 publication Critical patent/EP0193513A1/de
Withdrawn legal-status Critical Current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
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • 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
    • E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes

Definitions

  • the present invention essentially relates to a method for producing a pile of concrete or similar material using a finned tube and a driving tube for its implementation.
  • a driving pile comprising fins 4 fixed or not fixed to the external surface of the tube 1. These fins are welded to a plate 3 directly or by means of a cylinder 15 forming a driving sole which is of a section larger than the section of the tube itself.
  • the drawback of such a structure lies in the fact that the driving sole offers a relatively high resistance to sinking, slowing down the driving operation.
  • the presence of the driving sole repels the earth and therefore there is no intimate mixing of the concrete or similar material with the earth near the driving tube while it is important to achieve an intimate mixing. between earth and concrete or similar material to make a very large lift pile.
  • the present invention therefore relates to the new technical problem consisting in the production of a pile of concrete or similar material of great lift even in soft soils and with great ease of penetration allowing high driving speeds.
  • the present invention relates according to a first aspect to a method of making a pile of concrete or similar material in the ground, comprising the insertion of a hollow tube in the ground provided externally with fins, allowing the injection of '' a curable fluid material, for example a mortar, around said tube as the tube is pushed in, for example by threshing, said tube being left permanently in the ground, - characterized in that a hollow tube open at least at its lower driving end, provided externally and longitudinally with at least two fins whose lower edge borders the open lower end of the tube coming into contact directly with the ground, said tube being provided at its periphery with 'openings allowing the injection of said fluid material at least on either side of each fin; and in that said fluid material is injected as and when said tube is inserted inside it under sufficient pressure to overcome the
  • this method is characterized in that transverse elements are provided which are shaped as troughs, the base of which faces towards the ground, arranged at the base of the tube substantially perpendicular to the tube, in which troughs are housed. lower edge of a fin, thereby facilitating the flow and guiding of said fluid material along the fins and at a distance from the tube.
  • a non-return valve is provided inside said tube, preferably towards its base making it possible to limit the penetration of the earth from the ground inside the tube.
  • the section of the fins is constant over most of their length.
  • a cylindrical envelope can be provided around the fins, which is preferably welded to the longitudinal edges of the fins, thereby further stiffening the structure.
  • the fins are shaped as light half-beams, preferably with a T-section.
  • the present invention relates, according to a second aspect, also to a driving tube as defined above, that is to say characterized in that it comprises a hollow tube open at least at its lower driving end, externally and longitudinally provided with at least two fins, the lower edge of which borders on the open lower end of the tube intended to come into direct contact with the ground, said tube being provided at its periphery with openings allowing the injection of a material fluid at least on either side of each fin.
  • transverse elements shaped as a trough are fixed substantially perpendicular to the tube in the vicinity of its base, the lower edge of a fin coming from lodge inside a corresponding trough, thus facilitating the flow and guiding of the material along the fins and away from the tube.
  • the fins have a constant section over most of their length.
  • the fins can be shaped into light half-beams, preferably with a T-section.
  • the tube is also preferably provided inside a non-return valve.
  • the height of the fins is two to three times the diameter of the lower end of the tube, and usually this height will be 30 to 60 cm.
  • the fins cut out the ground when driving in.
  • the friction forces are reduced by the flow of the fluid material covering the tube and the fins during sinking.
  • the soil, intimately mixed with the hardened material, such as concrete, is locked between the fins and the tube by increasing the bearing capacity of the pile thus formed.
  • the width of the fins will be such that the maximum wheelbase will be three times the diameter of the tube.
  • a sinking tube or pile designated by the general reference number 1
  • said tube is hollow and is open at least at its lower end. for driving by presenting an opening 2.
  • the tube 1 is provided externally and longitudinally with at least two fins 4, and here four fins arranged at 90 °, the lower edge of which is close to 4a. the lower open end of the tube 1 which is intended to come into direct contact with the ground.
  • said tube 1 is advantageously provided at its periphery with openings 6 cut in the mass of the tube in the vicinity of its lower end 1a so as to allow the injection of a curable fluid material such as for example mortar or a curable synthetic resin, at least on each side of each fin 4.
  • a curable fluid material such as for example mortar or a curable synthetic resin
  • the openings 6 can be made beforehand by cutting at the lower end 1a of the tube 1 and then the fins 4 will be fixed, for example by welding, so that their plane is substantially parallel to a plane of symmetry passing by a diameter of the tube, as clearly visible in Figure la, the fin being substantially arranged in the center or symmetrically relative to the opening 6 and with its lower edge 4a in the vicinity of the lower end la.
  • the fins 4 are flush with the lower end of the tube 1.
  • the section of the fins 4 is constant over most of their length, this section being decreasing towards the tube only at the end and being able to end at a some distance from the edge of the tube, as shown, so as not to end the fin at a point.
  • the height of the fins is 2 to 3 times the diameter of the tube, in particular in the vicinity of its lower end.
  • the width of the fins is such that the total wheelbase of the tube 1 with the fins 4 is at most three times the diameter of the tube.
  • curable fluid material such as a mortar or a curable synthetic resin is injected under pressure inside the tube for example by a bypass 10 and flows out. outside along the tube 6 and on either side of the fins 4 through the openings 6.
  • FIGS. 2 and 2a representing an alternative embodiment of the embodiment of FIG. 1, the same reference number has been used for the identical parts.
  • transverse elements 12 are also provided, shaped as a trough, the base of which is arranged closer to the end of the tube 1, that is to say facing the ground.
  • these trough elements are preferably arranged substantially perpendicular to the tube as clearly visible in Figure 2a.
  • these trough elements 12 are arranged so that the lower edge 4a of a fin 4 is housed inside the trough, preferably substantially in the middle of the latter as clearly visible in the figure. 2a.
  • the curable fluid material will have an easy flow and guidance along the fins 4 and at a distance from the tube 1 so as to ensure an intimate mixing of this curable fluid material. over the entire dimension of the fin.
  • the width of the trough 12 is at least equal to the width of the opening 6.
  • the resistance to sinking will only be slightly increased by the presence of these transverse elements in the shape of a trough. All the advantages of the first embodiment of FIG. 1 are thus obtained with the additional advantage indicated above of a distribution of the curable fluid material over the entire transverse dimension or width of the fins 4.
  • FIGS. 3 and 3a an alternative embodiment of the embodiment of FIG. 1 is shown for which the same reference numbers have been used for the identical parts. It can also be seen that, according to this variant, a cylindrical envelope 14 is provided around the fins 4. This cylindrical envelope is preferably welded to the fins 4, this making it possible to stiffen the device and limit the torsional forces exerted on the fins 4 .
  • a slight annular rim 16 may preferably be provided at the base of the cylindrical envelope 14 so as to minimize the forces exerted on the welding of the cylindrical envelope on the fins 4.
  • this rim 16 being of a limited dimension, the resistance to penetration will only be slightly modified compared to the first embodiment of FIG. 1.
  • the fins can be shaped into light half-beams, preferably with a T-section.
  • the driving tube can be provided inside with a non-return valve 18 formed here by the combination of a flat element 20 here substantially circular provided in its center with an opening 22 which can be closed by a closure element 24 held captive and guided by an inverted conical element 26 provided with suitable openings 28 for the correct passage of the curable fluid material.
  • this non-return valve 18 makes it possible to avoid the penetration of the ground inside the tube during the sinking of the latter.
  • the tube is preferably left permanently in the ground and is filled with hardened material, such as mortar or concrete made of synthetic resin, thus obtaining maximum bearing capacity even at shallow depths.

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)
EP86870003A 1985-01-14 1986-01-13 Verfahren zum Herstellen eines Pfahles aus Beton oder ähnlichem Material mit Hilfe eines Bohrrohres mit Flügeln und Bohrrohr dafür Withdrawn EP0193513A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8500441A FR2576049B1 (fr) 1985-01-14 1985-01-14 Procede de realisation d'un pieu en beton ou materiau similaire a l'aide d'un tube de foncage comportant des ailettes et tube de foncage pour sa mise en oeuvre
FR8500441 1985-01-14

Publications (1)

Publication Number Publication Date
EP0193513A1 true EP0193513A1 (de) 1986-09-03

Family

ID=9315236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86870003A Withdrawn EP0193513A1 (de) 1985-01-14 1986-01-13 Verfahren zum Herstellen eines Pfahles aus Beton oder ähnlichem Material mit Hilfe eines Bohrrohres mit Flügeln und Bohrrohr dafür

Country Status (2)

Country Link
EP (1) EP0193513A1 (de)
FR (1) FR2576049B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241272A (en) * 1990-02-24 1991-08-28 Michael John Turner Pile shoe
CN102304917A (zh) * 2011-07-25 2012-01-04 山东电力工程咨询院有限公司 压嵌异形灌注桩施工工艺及其设备
US20190071834A1 (en) * 2016-02-22 2019-03-07 Board of Regents of the Nevada System of Higher Education on Behalf of the University of Method and loading module to mechanically increase pile/drilled shaft end bearing stiffness
US10526764B2 (en) 2016-02-22 2020-01-07 Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Of Nevada, Reno Deep foundation porewater pressure dissipater

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362171A (en) * 1965-10-22 1968-01-09 C W Blakeslee & Sons Inc Method of forming a pile for building construction purposes and the product thereof
CH458259A (de) * 1966-02-23 1968-06-30 George Jr Bodine Albert Verfahren zum Herstellen eines länglichen Körpers aus fliessfähigem, erhärtendem Material
FR2336535A2 (fr) * 1976-05-31 1977-07-22 Leclerc Thierry Support d'effort encastre
DE2949938A1 (de) * 1979-12-12 1981-06-19 Brown, Boveri & Cie Ag, 6800 Mannheim Pfahl

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3362171A (en) * 1965-10-22 1968-01-09 C W Blakeslee & Sons Inc Method of forming a pile for building construction purposes and the product thereof
CH458259A (de) * 1966-02-23 1968-06-30 George Jr Bodine Albert Verfahren zum Herstellen eines länglichen Körpers aus fliessfähigem, erhärtendem Material
FR2336535A2 (fr) * 1976-05-31 1977-07-22 Leclerc Thierry Support d'effort encastre
DE2949938A1 (de) * 1979-12-12 1981-06-19 Brown, Boveri & Cie Ag, 6800 Mannheim Pfahl

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2241272A (en) * 1990-02-24 1991-08-28 Michael John Turner Pile shoe
CN102304917A (zh) * 2011-07-25 2012-01-04 山东电力工程咨询院有限公司 压嵌异形灌注桩施工工艺及其设备
CN102304917B (zh) * 2011-07-25 2013-05-29 山东电力工程咨询院有限公司 压嵌异形灌注桩施工工艺及其设备
US20190071834A1 (en) * 2016-02-22 2019-03-07 Board of Regents of the Nevada System of Higher Education on Behalf of the University of Method and loading module to mechanically increase pile/drilled shaft end bearing stiffness
US10407859B2 (en) * 2016-02-22 2019-09-10 Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Of Nevada, Reno Method and loading module to mechanically increase pile/drilled shaft end bearing stiffness
US10526764B2 (en) 2016-02-22 2020-01-07 Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Of Nevada, Reno Deep foundation porewater pressure dissipater

Also Published As

Publication number Publication date
FR2576049B1 (fr) 1987-01-30
FR2576049A1 (fr) 1986-07-18

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Inventor name: DE KORT, PETRUS JOHANNES CORNELIUS M.