EP1087062A2 - Pfahlkupplung und deren Herstellungsverfahren - Google Patents

Pfahlkupplung und deren Herstellungsverfahren Download PDF

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Publication number
EP1087062A2
EP1087062A2 EP00120839A EP00120839A EP1087062A2 EP 1087062 A2 EP1087062 A2 EP 1087062A2 EP 00120839 A EP00120839 A EP 00120839A EP 00120839 A EP00120839 A EP 00120839A EP 1087062 A2 EP1087062 A2 EP 1087062A2
Authority
EP
European Patent Office
Prior art keywords
pile
sleeve
piles
interconnecting
arrangement
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
EP00120839A
Other languages
English (en)
French (fr)
Other versions
EP1087062B1 (de
EP1087062A3 (de
Inventor
Matti Numminen
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.)
Yit-Yhtyma Oyj
Original Assignee
Yit-Yhtyma Oyj
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 Yit-Yhtyma Oyj filed Critical Yit-Yhtyma Oyj
Publication of EP1087062A2 publication Critical patent/EP1087062A2/de
Publication of EP1087062A3 publication Critical patent/EP1087062A3/de
Application granted granted Critical
Publication of EP1087062B1 publication Critical patent/EP1087062B1/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
    • E02D5/52—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 present invention relates to an arrangement in accordance with the preamble of the independent claims, especially a joint arrangement for piles or the like pieces to be driven essentially vertically into the ground, wherein the upper end of a lower pile which is intended to be extended and the lower end of a an extension pile arranged in an opposed position in relation to said lower pile are interconnected by a separate joint piece made of metal and arranged at the ends of said piles axially with respect to the longitudinal axis of said ends.
  • the invention further relates to a method for extending piles or the like pieces intended to be driven essentially vertically into the ground, wherein outer and inner connection portions intended to be axially pushed into a mutually overlapping position are used as a joint.
  • pile extensions comprise registering and fastening elements arranged at the ends of the piles, the purpose of said elements being the forming of a joint which is as straight as possible and wherein the load forces acting on the piles are directed straight in the pile direction downwards.
  • the joint should also function so that it keeps the parts of the pile together and the pile straight also at that stage where the pile is pressed or rammed, i.e. driven, down into the ground.
  • ramming is a difficult stage with respect to the pile stresses, since therein striking forces are directed to the pile from above, counter strike forces ar directed from below and between there will, above all, act different resonance forces which are directed especially to any discontinuities in the pile, i.e. to the joints.
  • a pile joint must be capable of bearing at least some tensile force, despite the fact that the main load of a pile will be compression.
  • the arrangement according to the present invention is characterized especially by the arrangement of a piece favorably made of metal, which piece functions as an interconnecting portion which is dimensioned with such a tolerance that at least some of its lateral surfaces due to a change in temperature established in at least one portion of the connection will radially drift apart from corresponding lateral surfaces at a counter piece interconnecting therewith, where said lateral surfaces under normal temperature, correspondingly, will push against each other.
  • the arrangement comprises a metal sleeve having such a tolerance, with respect to said counter piece, that an expansion caused by a heating directed to the sleeve renders possible the introduction of the counter piece into the sleeve, but which, on the other hand, in normal temperature conditions will clamp its inner surface against the outer surface of said counter piece.
  • the arrangement further comprises means for momentarily heating the sleeve in the vicinity of the pile end in order to achieve said expansion.
  • the method according to the present invention is characterized by causing the inner dimensions of an outer interconnecting portion to expand, due to a difference in temperature, to be larger than the circumferential dimension of an inner interconnecting portion, by bringing said outer and inner interconnecting portions to move, within a mutually loose fit, in the axial direction of the pile into an overlapping position, after which the interconnected parts are brought to the normal temperature of the connection in order to remove the adaptation fit caused by the temperature difference and to tighten the pieces together.
  • a sleeve favorably is used as said interconnecting portion, said sleeve being positioned around the ends of tube-shaped piles arranged in an opposite disposition, wherein the method comprises the mutual arrangement of the radial dimensions of the separate sleeve and the ends of said piles to be connected thereto from both sides, utilizing a temperature difference between said sleeve and said pile end(s), into each other for the time of implementing the connection or arranging said parts axially into said overlapping position.
  • the inner diameter of said sleeve is larger than the outer diameter of the pile by an amount at least corresponding to an adaptation tolerance, after which said sleeve and said pile end(s) arranged, respectively, in axially overlapping disposition are brought into mutual constriction by bringing all said elements to normal temperature, i.e. mainly to that temperature in which the piles essentially will prevail.
  • a pile 1 is brought down into the ground in a manner known per se , e.g., by driving or pressing with the aid of a jack.
  • said pile 1 must often be extended by the use of a second pile 2.
  • piles driven into the ground e.g., all the way to the hard ground, must be divided into several relatively quite short portions.
  • the entire pile formed by such portions will be the object of the same forces which would act on an entire pile.
  • special care must be taken with respect to the straightness of the pile entity, so that the pile not would deflect and in the worst case break.
  • said pile 1 or a part thereof will be brought by driving or pressing or some other manner into the ground so that the upper end 3 of said pile 1 still will remain over the ground surface 4.
  • the driving can also be extended deeper, but then the forming of the extension of the pile 1, i.e. the making of the connection between said pile 1 and said pile 2 in most case will be more difficult.
  • a retention ring 5 is arranged around the end 3 of said pile 1, the purpose of this mainly being the function as a retainer for the bushel or sleeve 6 included in the extension as an interconnecting portion and for preventing the movement thereof around the pile 1 to a depth which would render the connection instable.
  • said retainer 5 can be used as a gripping point for preventing the pile 1 from sinking deeper by its own weight in such situations where such a ground layer extends at the lower end of the pile which layer does not bear the load caused by the pile's own weight.
  • said retainer ring 5 favorably is constituted of two hinged ring portions, which at the side opposite to the hinge (not shown) comprise a clamping locking mechanism known per se (not shown) which appropriately facilitates an opening of the ring and its removal from around the pile also in a lateral direction.
  • said heating and attachment of said sleeve 6 can be made in one or two stages, depending on the case.
  • said sleeve 6 favorably is arranged in a cold state at the end 3 of the pile 1, suitably by means of an inclination 14 made suitably at the inner surface 7 thereof.
  • Upon heating the sleeve 6 will fall down into position around the end 13 of the pile 1 all the way to the retention ring 5. After this the inductive 12 winding is removed and the lower end 13 of the pile 2 constituting the extension is arranged within the free upper end 15 of said sleeve 6.
  • the inventive arrangement is especially favorable in connection with such piles 1 which are expressly round in section.
  • the arrangement implemented in the manner described is especially suitable for extending tubular or the like piles made of metal and especially of steel.
  • the pile tubes 1, 2 as such constitute opposite sleeves.
  • a generally dowel-like member 17 suitably provided with a retaining flange 16 is arranged into the tubes, correspondingly, which member connects said tubes, as is disclosed in a general manner in Figure 7.
  • Said dowel-like member 17 can be pushed into a pile tube 2 either so that the end 13 of said tube is heated in accordance with the above description as evident from Figure 9, in which case also the inner diameter of said tube 2 will grow and facilitate the insertion of a dowel 17a.
  • the impact, i.e. the temporary expansion of the mutual clearance caused by the temperature difference can be increased by simultaneously cooling said dowel 17a.
  • Figure 8 schematically discloses that an end provided with a dowel-like member 17 in accordance with the above, as disclosed in Figure 7, in itself is cooled in a suitable manner, e.g., by dipping said end into a vessel 18 containing fluid nitrogen.
EP00120839A 1999-09-23 2000-09-25 Pfahlkupplung und deren Herstellungsverfahren Expired - Lifetime EP1087062B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI992047A FI19992047A (fi) 1999-09-23 1999-09-23 Paalujatkos ja menetelmä sen toteuttamiseksi
FI992047 1999-09-23

Publications (3)

Publication Number Publication Date
EP1087062A2 true EP1087062A2 (de) 2001-03-28
EP1087062A3 EP1087062A3 (de) 2002-12-04
EP1087062B1 EP1087062B1 (de) 2008-07-23

Family

ID=8555343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00120839A Expired - Lifetime EP1087062B1 (de) 1999-09-23 2000-09-25 Pfahlkupplung und deren Herstellungsverfahren

Country Status (4)

Country Link
EP (1) EP1087062B1 (de)
AT (1) ATE402291T1 (de)
DE (1) DE60039563D1 (de)
FI (1) FI19992047A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1029126C2 (nl) * 2005-05-25 2006-11-28 Betonson B V Heipaal voorzien van wapeningsband.
CN103437351A (zh) * 2013-09-18 2013-12-11 浙江省岩土基础公司 灌注桩桩身偏斜及断裂补救处理方法
CN104314073A (zh) * 2014-09-28 2015-01-28 嘉兴市晋泉管桩有限公司 一种管桩组合套件

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112459052A (zh) * 2020-10-21 2021-03-09 中国一冶集团有限公司 一种预应力混凝土实心方桩接桩器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1600405A1 (de) * 1967-05-31 1970-02-05 Becorit Grubenausbau Gmbh Verfahren und Vorrichtung zum Herstellen,von Rohrleitungen,insbesondere OElleitungen
NL7602962A (en) * 1976-03-22 1977-09-26 Ultra Centrifuge Nederland Nv Fastening machine for shrink bonding tubular parts - has heated and cooled clamps and operates automatically
DE2849057A1 (de) * 1978-11-11 1980-05-14 Karl Heinz Vahlbrauk Verfahren zum verbinden zweier rohrenden aus metall
US4298221A (en) * 1977-01-26 1981-11-03 Hunting Oilfield Services (U.K.) Limited Pipe connectors
DE3121602A1 (de) * 1981-05-30 1982-12-23 Erwaeta Bohrtechnik GmbH, 2300 Kiel Muffenverbindung fuer die enden je zweier rohrschuess e
JP2000144724A (ja) * 1998-11-16 2000-05-26 Kubota Corp 杭の接続構造およびその接続に用いる加熱装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1600405A1 (de) * 1967-05-31 1970-02-05 Becorit Grubenausbau Gmbh Verfahren und Vorrichtung zum Herstellen,von Rohrleitungen,insbesondere OElleitungen
NL7602962A (en) * 1976-03-22 1977-09-26 Ultra Centrifuge Nederland Nv Fastening machine for shrink bonding tubular parts - has heated and cooled clamps and operates automatically
US4298221A (en) * 1977-01-26 1981-11-03 Hunting Oilfield Services (U.K.) Limited Pipe connectors
DE2849057A1 (de) * 1978-11-11 1980-05-14 Karl Heinz Vahlbrauk Verfahren zum verbinden zweier rohrenden aus metall
DE3121602A1 (de) * 1981-05-30 1982-12-23 Erwaeta Bohrtechnik GmbH, 2300 Kiel Muffenverbindung fuer die enden je zweier rohrschuess e
JP2000144724A (ja) * 1998-11-16 2000-05-26 Kubota Corp 杭の接続構造およびその接続に用いる加熱装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 08, 6 October 2000 (2000-10-06) -& JP 2000 144724 A (KUBOTA CORP), 26 May 2000 (2000-05-26) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1029126C2 (nl) * 2005-05-25 2006-11-28 Betonson B V Heipaal voorzien van wapeningsband.
CN103437351A (zh) * 2013-09-18 2013-12-11 浙江省岩土基础公司 灌注桩桩身偏斜及断裂补救处理方法
CN104314073A (zh) * 2014-09-28 2015-01-28 嘉兴市晋泉管桩有限公司 一种管桩组合套件
CN104314073B (zh) * 2014-09-28 2016-02-03 嘉兴市晋泉管桩有限公司 一种管桩组合套件

Also Published As

Publication number Publication date
FI19992047A (fi) 2001-03-23
DE60039563D1 (de) 2008-09-04
ATE402291T1 (de) 2008-08-15
EP1087062B1 (de) 2008-07-23
EP1087062A3 (de) 2002-12-04

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