EP4273327A1 - Procede pour fournir un pieu en beton et un pieu en beton - Google Patents

Procede pour fournir un pieu en beton et un pieu en beton Download PDF

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Publication number
EP4273327A1
EP4273327A1 EP23171385.0A EP23171385A EP4273327A1 EP 4273327 A1 EP4273327 A1 EP 4273327A1 EP 23171385 A EP23171385 A EP 23171385A EP 4273327 A1 EP4273327 A1 EP 4273327A1
Authority
EP
European Patent Office
Prior art keywords
pile
concrete
section
bottom section
hollow
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.)
Pending
Application number
EP23171385.0A
Other languages
German (de)
English (en)
Inventor
Martien Willem KOOL
Johannes Maria Veenman
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.)
Hpschroefpaal Beheer BV
Original Assignee
Hpschroefpaal Beheer BV
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 Hpschroefpaal Beheer BV filed Critical Hpschroefpaal Beheer BV
Publication of EP4273327A1 publication Critical patent/EP4273327A1/fr
Pending 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
    • E02D5/24—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
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving

Definitions

  • the present invention relates to a method for providing a reinforced hollow concrete pile for pile driving.
  • Concrete piles are used as part of a foundation in order to be able to build a building on ground that is for example soft or wet.
  • the foundation provides support for the building on the ground and transfers loads of the building to the ground.
  • a method according to the preamble is characterized in that the method comprises the steps of: providing a concrete beam having a hollow core,
  • a volume of the hollow core is for example 20 or 30% of a total volume of the pile, thus saving concrete, weight and costs.
  • the concrete mixture comprises water, sand and cement in such proportions that the hollow concrete pile does not collapse.
  • Removing a portion of concrete from a pile head section and/or the pile bottom section can be removing concrete from a side of the beam in the pile head section and/or bottom head section, thereby exposing the hollow core of the beam. It can also be removing all concrete from the pile head section and/or pile bottom section of the beam.
  • the concrete pile having a hollow core is provided by a wet casting method, a slip forming method or an extrusion method.
  • the concrete pile having a hollow core is provided by an extrusion method.
  • GB 994578 describes such an extrusion method for providing reinforced hollow concrete sections.
  • the concrete pile having a hollow core comprises rebars or tendon wires extending in a longitudinal direction of the pile.
  • the rebars or tendon wires provide the concrete pile with additional strength, so the piler may better withstand the impact of a hammer head during pile driving.
  • the reinforcement can be placed such that the rebars or tendon wires are located within a circumference of the reinforcement, or such that the rebars or tendon wires are located outside the circumference of the reinforcement.
  • the second concrete mixture is compacted after filling the pile head section and/or the pile bottom section with a second concrete mixture.
  • Compacting the second concrete mixture results in a stronger piler head and/or bottom, so the piler may better withstand the impact of a hammer head during pile driving.
  • Compacting may for example be performed by shaking or vibration.
  • setting of the first concrete mixture and the second concrete mixture is facilitated by heating.
  • Heating the first and second concrete mixtures assists in accelerating setting of the concrete mixtures, so the piler may be produced faster.
  • the heating is for example provided by a heating conduit extending along the setting piler.
  • the reinforcement comprises a metal helix.
  • a helix is easily introduced in the hollow core or wrapped around tendion wires, and a pitch of the helix may be adapted to a desired number to provide the required reinforcement.
  • the helix of the pile head section may for example comprise 3-12 windings having a pitch of 1-10 cm.
  • the helix comprises 5-9 windings having a pitch of 4-5 cm.
  • the reinforced hollow concrete beam is cut transversally at the level of the pile head section and/or pile bottom section.
  • the reinforced concrete pile is cut transversely at the level of the pile head section and/or pile bottom section such that mutiple reinforced hollow concrete piles are obtained from one concrete beam.
  • the present invention relates to a reinforced hollow concrete pile for pile driving, wherein the pile extends in a first direction and comprises
  • the concrete pile having a hollow core comprises rebars or tendon wires extending in a longitudinal direction of the pile.
  • the rebars or tendon wires provide the concrete pile with additional strength, so the piler may better withstand the impact of a hammer head during pile driving.
  • the reinforcement can be placed such that the rebars or tendon wires are located within a circumference of the reinforcement, or such that the rebars or tendon wires are located outside the circumference of the reinforcement.
  • the reinforcement is in the form of a metal spiral.
  • a spiral is easily introduced in the hollow core or wrapped around tendon wires, and a pitch of the spiral may be adapted to a desired number to provide the required reinforcement.
  • the helix of the pile head section may for example comprise 3-12 windings having a pitch of 1-10 cm.
  • the helix comprises 5-9 windings having a pitch of 4-5 cm.
  • the pile head section extends over a length of 30-100 cm, preferably over a length of 40-70 cm, such as 60 cm.
  • the pile bottom section extends over a length of 10-50 cm, preferably over a length of 20-40 cm, such as 30 cm.
  • a diameter of the hollow core is 40-70% of a width of the reinforced hollow concrete pile, preferably 50-60%.
  • Fig. 1A shows a cross sectional view of a multitude of tendon wires 100 that extend in a longitudinal direction.
  • the tendon wires 100 are provided above a supporting surface 110, under which heating conduits 120 extend.
  • the tendon wires 100 are arranged in sets of four tendon wires 100, such that of each set a first and a second tendon wire 100 are provided in a first plane substantially parallel to the supporting surface, and a third and a fourth tendon wire 100 are provided in a second plane substantially parallel to the supporting surface 110.
  • the first and the third tendon wire 100 are provided in a third plane substantially perpendicular to the supporting surface 110, and the second and the fourth tendon wire 100 in a fourth plane substantially perpendicular to the supporting surface 110.
  • Fig. 1B shows a cross section of the bottom part of a device 130 for providing a first concrete mixture 153.
  • the device 130 is an concrete extruder 130 provided with wheels 131 which enable the extruder 130 to drive in the longitudinal direction over the support surface 110 while extruding concrete.
  • the extruder 130 comprises four screws 132.
  • the extruder 130 is aligned such that each screw 132 is positioned substantially centered with respect to the four tendon wires 100 of each set of tendon wires 100.
  • the first concrete mixture 153 is extruded by means of four sets of dies and mandrels which are shaped to produce the required cross section as shown in Fig. 1C .
  • the four tendon wires 100 of a set of tendon wires 100 are embedded in the first concrete mixture.
  • the extruder is furthermore provided with guiding surfaces 140 which are aligned with the upright side walls of the dies, that guide the first concrete mixture being extruded and assist in shaping a concrete profiled hollow beam 150 having a hollow core 151 as shown in Fig. 1C .
  • Fig. 1D shows a cross section of the concrete hollow beam 150 having a hollow core 151 at the level of a pile head and bottom section 152.
  • a portion of concrete in the upper wall of the beam is removed from one or more pile head/bottom sections, such that the hollow core 151 of the concrete hollow beam 150 is exposed.
  • One or more reinforcements 200 are then placed in the hollow core 151, and the hollow core 151 and the space of the removed wall part of the pile head/bottom section 152 is filled with a second concrete mixture 154, as shown in Figs. 2A and 2C .
  • the concrete beam 150 is then heated by means of the heating conduits 120 and allowed to set to yield the reinforced hollow concrete beam 150.
  • the beam 150 is then cut through at the locations of the reinforcement 200 in the pile head/bottom section(s), whereby multiple hollow reinforced piles are obtained having a reinforced head and a reinforced bottom.
  • Fig. 2A shows a longitudinal cross section of an end part of the finished reinforced hollow concrete pile 250 for pile driving.
  • Fig. 2B shows a cross section A-A of the reinforced hollow concrete pile 250 for pile driving at the level of a middle section between the pile head section 152 and a pile bottom section.
  • Fig. 2C shows a cross section C-C of the reinforced hollow concrete pile 250 for pile driving at the level of the pile head.
  • the pile head section 152 comprises the reinforcement 200 which extends in the longitudinal direction of the concrete pile 250 and which in this embodiment is in the form of a reinforcing metal helical wire 201 which is fixed in shape by means of wires 202 extending in the axial direction of the helix, and which are fixed to the helical wire 201.
  • the hollow core 151 is filled with the second concrete mixture 154, resulting in the reinforcing metal helix 200 being embedded in the concrete mixture.
  • the middle section comprises the hollow core 151 extending between the pile head section 152 and the pile bottom section 152.

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)
EP23171385.0A 2022-05-05 2023-05-03 Procede pour fournir un pieu en beton et un pieu en beton Pending EP4273327A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2031784A NL2031784B1 (en) 2022-05-05 2022-05-05 A method for providing a concrete pile and a concrete pile

Publications (1)

Publication Number Publication Date
EP4273327A1 true EP4273327A1 (fr) 2023-11-08

Family

ID=82850535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23171385.0A Pending EP4273327A1 (fr) 2022-05-05 2023-05-03 Procede pour fournir un pieu en beton et un pieu en beton

Country Status (2)

Country Link
EP (1) EP4273327A1 (fr)
NL (1) NL2031784B1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB994578A (en) 1963-01-25 1965-06-10 Spiroll Corp Ltd A machine for extruding a hollow cored concrete product
WO2010147306A2 (fr) * 2009-06-19 2010-12-23 (주)하경엔지니어링 Pieu en phc synthétique, procédé de fabrication d'un pieu en phc synthétique et procédé de construction d'un pieu en phc synthétique
KR101777760B1 (ko) * 2016-11-03 2017-09-26 한국도로공사 보강용 나선철근이 포함된 매입형 원심력 철근 콘크리트 파일 및 이를 이용하여 콘크리트 파일을 매입 시공하는 방법
CN111472352A (zh) * 2020-05-18 2020-07-31 天津大学建筑设计研究院 分离式配筋管桩及其配筋方法、施工方法
CN211898332U (zh) * 2020-02-28 2020-11-10 许顺良 一种预制建筑结构
CN114045822A (zh) * 2021-11-19 2022-02-15 无锡市大筑岩土技术有限公司 一种抗拔空心桩及其施工方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1031876C2 (nl) * 2005-05-25 2007-01-04 Betonson B V Heipaal voorzien van wapeningsband.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB994578A (en) 1963-01-25 1965-06-10 Spiroll Corp Ltd A machine for extruding a hollow cored concrete product
WO2010147306A2 (fr) * 2009-06-19 2010-12-23 (주)하경엔지니어링 Pieu en phc synthétique, procédé de fabrication d'un pieu en phc synthétique et procédé de construction d'un pieu en phc synthétique
KR101777760B1 (ko) * 2016-11-03 2017-09-26 한국도로공사 보강용 나선철근이 포함된 매입형 원심력 철근 콘크리트 파일 및 이를 이용하여 콘크리트 파일을 매입 시공하는 방법
CN211898332U (zh) * 2020-02-28 2020-11-10 许顺良 一种预制建筑结构
CN111472352A (zh) * 2020-05-18 2020-07-31 天津大学建筑设计研究院 分离式配筋管桩及其配筋方法、施工方法
CN114045822A (zh) * 2021-11-19 2022-02-15 无锡市大筑岩土技术有限公司 一种抗拔空心桩及其施工方法

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NL2031784B1 (en) 2023-11-14

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