WO2018084697A1 - Procédé de fondation, partie de colonne de fondation, et élément d'absorption de vibrations - Google Patents

Procédé de fondation, partie de colonne de fondation, et élément d'absorption de vibrations Download PDF

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Publication number
WO2018084697A1
WO2018084697A1 PCT/NL2017/050635 NL2017050635W WO2018084697A1 WO 2018084697 A1 WO2018084697 A1 WO 2018084697A1 NL 2017050635 W NL2017050635 W NL 2017050635W WO 2018084697 A1 WO2018084697 A1 WO 2018084697A1
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WO
WIPO (PCT)
Prior art keywords
vibration
foundation column
absorbing member
male
foundation
Prior art date
Application number
PCT/NL2017/050635
Other languages
English (en)
Inventor
Oskar Peter Henriëtte Pudelko
Original Assignee
Pudelko Oskar Peter Henriette
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 Pudelko Oskar Peter Henriette filed Critical Pudelko Oskar Peter Henriette
Publication of WO2018084697A1 publication Critical patent/WO2018084697A1/fr

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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
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
    • 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 a method for assem ⁇ bling a foundation column, such as an assembled foundation pile.
  • the present invention also relates to a prefab foun ⁇ dation column part for the purpose of assembling a foundation column by applying a number thereof, preferably while using at least one vibration-absorbing member.
  • the present invention further relates to a vibration-absorbing member comprising a primary vibration-absorbing member for absorbing a primary part of vibration energy to be absorbed, wherein the primary vibration-absorbing member has a substantially annular form, preferably for application around a male part of a male-female coupling.
  • the present invention provides for this purpose a method for assembling a foundation column, such as an assembled foundation pile, comprising steps for:
  • the method is characterized by steps for: - incorporating into the foundation column at least one vibration-absorbing member and/or a mastic connection by means of arranging and/or forming the at least one vibration-absorbing member or a mastic on at least one of the column parts.
  • a significant advantage of an embodiment according to the present invention is that one or more of the suc ⁇ cessively arranged foundation column parts can be arranged and/or mounted in flexible manner relative to each other. Sturdy means are hereby provided for reduced or damped transmission of vibrations in the ground to the construc ⁇ tion built on the foundation. Such a mastic can be arranged in liquid or cured form.
  • a further advantage according to the present inven- tion is that, in the case of ground subsidence relative to the building structure, adjustments to the length of the foundation column can be realized in simple manner. It is for instance relatively easy to replace the uppermost foundation column part with a longer one, where in the prior art the removal of such an element was very labour- intensive .
  • a vibration-absorbing member is incorporated between the upper two foundation column parts during forming of the foundation column. Incorporation of a vibration-absorbing member in the column is relatively easy because this aspect of the work need only be carried out once .
  • Two or more vibration-absorbing members are more preferably incorporated between three or more of the re ⁇ spective foundation column parts during forming of the foundation column.
  • a vibra ⁇ tion-absorbing effect is provided in a relatively large part of the column.
  • the vi ⁇ bration-absorbing member comprises:
  • a primary vibration-absorbing member for absorbing a primary part of vibration energy to be absorbed, wherein the primary vibration-absorbing member has a substantially annular form, preferably for application around a male part of a male-female coupling.
  • Such a primary vibration-absorbing member is prefer- ably applied on a relatively large surface area for the purpose of absorbing forces.
  • the described preference for application around a male part of a male-female coupling can likewise be embodied in a form as application on a fe ⁇ male part of a male-female coupling, for instance in an embodiment wherein the male part of the male-female cou ⁇ pling has a large surface area relative to the surface of the foundation column parts.
  • a secondary vibration-absorbing member for absorbing a secondary part of vibration energy to be absorbed, preferably for application on a male part of a male-female coupling
  • the whole vibration- absorbing member can be manufactured from one material, although provision is likewise made that the vibration- absorbing member is manufactured from a material other than the material of the connecting means, for instance from a material with a relatively high density compared to the material of the connecting means. Provision is further made to fill the space between the male-female connection with a mouldable material instead of an integrated con ⁇ struction between these components.
  • the connecting means for instance can hereby be formed during performing of the method. Such an embodiment is for instance provided in combination with a bayonet connection between respective foundation column parts.
  • the connecting means are more preferably formed for the purpose of substantially filling a space between the male-female connection of two respective foundation column parts. This provides the advantage for instance that mois ⁇ ture is hereby displaceable from this space.
  • a further aspect according to the present invention relates to a prefab foundation column part for assembling a foundation column by applying a number thereof, preferably while using at least one vibration-absorbing member, the foundation column part comprising:
  • first of the end sides comprising a first cou ⁇ pling member such as a male part of a male-female cou ⁇ pling,
  • the second of the end sides comprising a second coupling member such as a female part of a male-female coupling
  • the coupling means are formed as part of the cast body .
  • Such a foundation column part can moreover be applied in advantageous manner with vibration-damping measures.
  • Such a foundation column part can be applied in simple manner with elastic materials therefor, such as polymers, rubbers or the like.
  • the body comprises cast-in reinforcing members for strengthening a coupling member, preferably for strengthening a coupling member extending from the cast body.
  • Such reinforcing members for instance when arranged in a male part of the male-female connection, imparts a significant
  • the parts of a cast body forming the female parts can also be strength ⁇ ened in advantageous manner by means of such a reinforcing member.
  • the foundation column parts more preferably comprise two, three, four or five cast-in reinforcing mem- bers .
  • the foundation column parts preferably comprise rotation blocking means, such as a transverse pin or a bayonet member and a slide-in slot co-acting with the transverse pin or bayonet, for blocking rotation between two foundation column parts arrangeable on each other.
  • rotation blocking means such as a transverse pin or a bayonet member and a slide-in slot co-acting with the transverse pin or bayonet
  • Such a bayonet member is preferably arranged in the male-female construction, preferably cast into the male part thereof by means of a pin, and the female part there- of is preferably provided with a slot into which this pin can be pushed.
  • the pin protrudes in top view out of the male part on one or two sides and a corresponding number of slots is arranged in the female part.
  • the bayonet mem ⁇ ber or the pin is more preferably coupled to one or more of the reinforcements in the male part.
  • a further aspect according to the present invention relates to a vibration-absorbing member for use in one or more of the foregoing method claims and/or for use in a device according to one or more of the foregoing device claims, the vibration-absorbing member comprising:
  • a primary vibration-absorbing member for absorbing a primary part of vibration energy to be absorbed, wherein the primary vibration-absorbing member has a substantially annular form, preferably for application around a male part of a male-female coupling.
  • vibrations are transmitted in damped form be- tween two foundation column parts arranged successively relative to each other.
  • a secondary vibration-absorbing member for absorb- ing a secondary part of vibration energy to be absorbed, preferably for application on a male part of a male-female coupling
  • the primary vibration-absorbing member more preferably comprises an elastic material, preferably a polymer, more preferably a rubber, or a mixture of such materials, more preferably supplemented with fillers.
  • the primary vi ⁇ bration-absorbing member more preferably comprises a laminate of at least an elastic material and at least a non- elastic material such as a metal. Optimized solutions can be provided by means of these measures depending on the situation.
  • the secondary vibration-absorbing member more preferably has a similar structure.
  • the connecting means comprise an elastic mate ⁇ rial and/or a foaming, preferably open-cell or closed-cell material .
  • Fig. 1 is a cross-sectional top view and bottom view of a first preferred embodiment according to the present invention .
  • Fig. 2 is a cross-sectional top view and bottom view of a further preferred embodiment according to the present invention .
  • Fig. 3 shows two schematic cross-sectional views of a foundation column according to the present invention during use according to a preferred embodiment.
  • Fig. 4 is a cross-sectional top view and bottom view of a further preferred embodiment according to the present invention .
  • Fig. 5 is a cross-sectional top view and bottom view of a further preferred embodiment according to the present invention .
  • Fig. 6 is a cut-away schematic perspective view of a further preferred embodiment according to the present in ⁇ vention .
  • Fig. 7 is a schematic cross-sectional view of a fur ⁇ ther preferred embodiment according to the present inven ⁇ tion .
  • a first preferred embodiment (Fig. 1) relates to a foundation column part 1.
  • This comprises a substantially cylindrical cast body 2 having integrated therewith a male part 3 of a male-female coupling and a female part 4 integrated therewith of the male-female coupling.
  • Foundation column parts can hereby be stacked onto each other during arranging thereof in the ground.
  • the cast part is preferably manufactured by means of a mortar, such as comprising a type of concrete such as high-pressure concrete, polymer concrete, fibre-reinforced concrete or the like.
  • Male part 3 of the male-female coupling is formed by means of a stub extending from one of the end surfaces of the cast part, preferably having a conical form with a truncated end.
  • This stub is bounded by means of walls 12, 13 and extends from the surface 11 of the cast part.
  • a female part is formed on the other side of the cast part by means of the opening arranged in the surface of the cast part. This opening is bounded by walls 22, 23 and is formed in wall part 21 of the cast part.
  • a preferred embodiment of a vibration-absorbing member On the annular surface of the male-female coupling the vibration-absorbing member has an annular part 16. At the location of the end part of the male part of the male-female coupling the vibration- absorbing member has a disc-shaped part 17.
  • This disc ⁇ shaped part 17 can be manufactured from the same material as annular part 16, but can also comprise a filling mate ⁇ rial for the purpose of filling the space between the male parts and the female parts of the respective male-female couplings.
  • connecting part 18 extends between annular part 16 and disc-shaped part 17. Connecting part 18 is formed such that it connects to the male and the female part of the male-female coupling.
  • the preferred embodiment according to Fig. 2 is sub ⁇ stantially the same as the preferred embodiment according to Fig. 1.
  • a difference is that male part 3 of the male- female coupling is provided with a reinforcement 32, pref ⁇ erably embodied as a two-fold reinforcement, three-fold reinforcement, four-fold reinforcement or multiple rein ⁇ forcement. This reinforcement imparts additional strength to the casting material of the cast part.
  • a pin 37 is arranged protruding from the male part which is insertable into a slot 36 in the female part.
  • a pin 38 is arrangeable in al ⁇ ternative manner in opening 4 of the female part, which pin 38 is insertable into a slot 39 in male part 3 of the male-female coupling.
  • a rotation can hereby be imparted to an upper foundation column part which can thereby be transmitted to a following foundation column part and to further following foundation column parts.
  • Fig. 3 shows two foundation columns schematically. These foundation columns support a building 9.
  • Fig. 3A shows an arrangement with four foundation column parts with vibration-absorbing member 5 thereon (these parts are shown schematically) and with an upper foundation column part arranged on vibration-absorbing member 5.
  • a damping action is hereby imparted by vibration-absorbing member 5 which, because there is only a single one, can be given a relatively thick form.
  • a mastic or an adhesive is provided between the foundation column parts arranged thereunder.
  • Fig. 3B shows a foundation column with a vibration- absorbing member 5 between each two successive foundation column parts for absorbing the vibrations over the entire ⁇ ty of the column.
  • Fig. 4 shows a foundation column part with a rein- forcing element 41 incorporated in the male part of the male-female coupling.
  • This reinforcing element also serves to provide a bayonet pin 42 which couples the male part of a first foundation column part to a female part of a sec- ond foundation column part.
  • the female part is provided for this purpose with two slots into which pin 42 slides vertically.
  • This coupling provides the option of fixing the foundation column parts rotationally to each other as seen longitudinally.
  • a foundation pile can hereby be formed which can be rotated during insertion.
  • the reinforcing element can be introduced into a casting mould for the foundation element.
  • This element is hereby cast into the concrete. It hereby provides a rein ⁇ forcing effect as well as a functional effect in respect of the mutual rotational fixing of the different parts.
  • the female part comprises slots 42' or channels ex ⁇ tending downward from the top allowing pin 42 to drop therein .
  • FIG. 5 A variant of the embodiment according to Fig. 4 is shown in Fig. 5.
  • a substantially U-shaped part with a ser ⁇ if as reinforcing element is cast here into the foundation column part.
  • the serif serves as bayonet pin 52.
  • the ver ⁇ tical connections 53 and horizontal connections 54 form the reinforcement of the element.
  • the invention hereby relates to a rotatable embodi- ment without shock absorber. It is alternatively envisaged that a stackable embodiment can be applied without shock absorber .
  • a longitudinal channel is formed in the foundation column part. Following forming or during forming of the foundation pile such a channel can be applied in order to allow passage of a mor ⁇ tar from the upper side of the pile to the underside so as to create additional strengthening of the pile by means of the mortar.
  • FIG. 6 Shown in Fig. 6 is a preferred embodiment with a substantially square tube or profile 61 arranged in cast body 2 of a foundation column part.
  • a close-fitting cou- pling element 62 is arranged in the square tube or profile 61.
  • Successive cast bodies 2 are hereby coupled to each other.
  • a coupling element or a tool which can be arranged clampingly in the square tube or profile 61.
  • a reinforcement for strengthening the concrete and for strengthening the concrete around the square tube or profile 61 is provided.
  • This rein ⁇ forcement 65 preferably extends coaxially round the square tube or profile 61.
  • a radial reinforcement 64 is provided.
  • a reinforcement on the basis of fibre ma- terial is also provided.
  • Fig. 7 shows a further preferred embodiment.
  • a screw thread is arranged around the outer surface thereof close to the end parts.
  • This screw thread 72 is preferably provided in an outer surface of a tubular cast-in element 71.
  • An adjacent cast piece is provided with a tubular cast-in element 73 with an internal screw thread .
  • Two successive foundation column elements can hereby be coupled to each other.
  • rod 81 comprising a carbon fibre-reinforced resin is applied as reinforcing element which is preferably connectable by means of screw connection 82 to a rod in a foundation col- umn part lying below and/or above in the assembled founda ⁇ tion pile.
  • a sleeve 83 provid ⁇ ed with an internal screw thread 84 is incorporated in a downward oriented end surface of a foundation column part while an end of this reinforcing element co-acting there- with and provided with an external screw thread 85 is pro ⁇ vided protruding from the other end surface of the founda ⁇ tion column part.
  • This external screw thread can likewise be provided in the resin material as well as in an added element, such as an annular element with an external screw thread arranged therein.
  • a body 86 with a low density is also arranged in this foundation column part accord ⁇ ing to Fig. 8 .
  • the body being formed by means of a volume of polystyrene foam; a body formed by an air-enclosing plastic wall, such as a bottle, is however also provided.
  • a rod which is provided with a screw thread in the cavity on the upper side.
  • the rod is connected to a sleeve provided with an internal screw thread for receiving the screw thread of the oppo- site side when two foundation column parts are arranged on each other to form the foundation.
  • a sturdy coupling is hereby created which protects the foundation piles from lateral forces or ground movement.
  • a stop element 89 for provid ⁇ ing a support relative to a casting mould for manufactur ⁇ ing the foundation column part.
  • a plug 88 is also inserted into sleeve 83 with the internal screw thread in order to keep the screw thread clear during casting of the male part of the male-female coupling. After removal of plug 88 the sleeve 83 is suitable for receiving the end part of rod 81 arranged in the female part of the male-female cou- pling.
  • Two successive foundation column parts can hereby be coupled to each other by means of the screw thread.
  • the present invention relates to a method for manu ⁇ facturing a foundation column part.
  • a mould is arranged horizontally such that two vertical side walls thereof each form a respective end side of the foundation column part. This is particularly important because the distance between the two vertical side walls of the cast ⁇ ing mould hereby forms the end sides of the foundation column part. These end sides have to be flat for proper forming of the final foundation piles.
  • the length of the foundation column part is also directly determined here by the size of the casting mould. Expensive operations such as flat sawing of the end sides of the foundation column part are hereby avoided.
  • the vibration-absorbing member is optional.
  • the characterizing step is coupling of foundation column parts arrangeable on each other by means of fixing, such as screwing, respective coupling means.
  • a further alternative construction of a foundation column part according to the present invention is shown in Fig. 9.
  • a foundation column part is formed by a substan- tially annular elongate cast part 101 together with a cast part 102, a cast part 103 and a rod 81 embodied similarly to rod 81 according to Fig. 8.
  • the inner wall of elongate cast part 101 tapers for the purpose of receiving therein the cast part 102 of ex ⁇ ternally tapering form. These parts together form the female part of the male-female coupling on the upper side with the part of rod 81 protruding therein.
  • Narrow part 105 of cast part 104 forms the male part of the male-female coupling on the underside.
  • a mastic, adhesive and/or paste is provided for closing the hollow space in the interior enclosed by parts 101, 102 and 103.
  • Fig. 10 shows a detail of rod 81 with screw thread 85 and the sleeve with the internal screw thread for co- action with screw thread 85.
  • An adhesive, mastic and/or paste is likewise provided between the screw thread of the sleeve and of the rod for the purpose of sealing thereof.
  • FIG. 11 An alternative variant for providing a shock absorption on the upper side of the foundation is shown in Fig. 11.
  • Two discs 111, 112 of shock-absorbing material are arranged on the upper side of foundation pile 1. These discs 111, 112 are mutually separated by means of a plate 113, 114.
  • Fig. 12 shows a manner of attaching the discs by means of threaded ends 121 which are rotated into threaded end supports 122 of a plate 123 which can be similar to plates 113 and 114.
  • the purpose hereof is to provide an advantageous orientation of a rubber disc 124 which can be similar to discs 111, 112. It is for instance advantageous during arranging of the foundation piles that the discs which have to provide the shock absorption are positioned in correct manner relative to the foundation pile.
  • first of the end sides comprising a first cou ⁇ pling member such as a male part of a male-female cou- pling,
  • the second of the end sides comprising a second coupling member such as a female part of a male-female coupling
  • the coupling means are preferably mutually con- nectable by means of an elongate connecting member.
  • Such a prefab foundation column part also comprising a coupling member with an internal screw thread for coupling successive elongate connecting members.
  • Such a prefab foundation column part wherein an end part forming the male part of the male-female coupling is arrangeable in an end part of the body.
  • Such a prefab foundation column part wherein an end part forming the female part of the male-female coupling is arrangeable in an end part of the body.

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  • 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)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Foundations (AREA)

Abstract

La présente invention concerne un procédé d'assemblage d'une colonne de fondation, telle qu'un pieu de fondation assemblé, comprenant les étapes consistant à: - fournir un nombre de parties de colonnes de fondation pour former la colonne de fondation, - amener des parties de colonne successives dans le sol, ledit procédé étant caractérisé par les étapes: - d'incorporation dans la colonne de fondation d'au moins un élément absorbeur de vibrations et/ou d'un raccord en mastic par disposition et/ou formation dudit au moins un élément absorbeur de vibrations ou d'un mastic sur au moins une des parties de colonne. L'invention concerne également une partie de colonne de fondation pour l'assemblage d'une colonne de fondation par application d'un nombre associé, de préférence pendant l'utilisation d'au moins un élément absorbeur de vibrations. L'invention concerne aussi un élément absorbeur de vibrations comprenant un élément absorbeur de vibrations primaire pour absorber une partie primaire d'énergie de vibration à absorber, ledit élément absorbeur de vibrations primaire présentant une forme sensiblement annulaire, de préférence pour une application autour d'une pièce mâle d'un accouplement mâle-femelle.
PCT/NL2017/050635 2016-09-22 2017-09-22 Procédé de fondation, partie de colonne de fondation, et élément d'absorption de vibrations WO2018084697A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2017517A NL2017517B1 (nl) 2016-09-22 2016-09-22 Funderingwerkwijze, funderingkolomdeel en trillingabsorptie-orgaan
NL2017517 2016-09-22

Publications (1)

Publication Number Publication Date
WO2018084697A1 true WO2018084697A1 (fr) 2018-05-11

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PCT/NL2017/050635 WO2018084697A1 (fr) 2016-09-22 2017-09-22 Procédé de fondation, partie de colonne de fondation, et élément d'absorption de vibrations

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NL (2) NL2017517B1 (fr)
WO (1) WO2018084697A1 (fr)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL29578C (fr) *
US2065507A (en) * 1935-05-18 1936-12-29 Massey Concrete Products Corp Concrete pile
GB521682A (en) * 1939-03-02 1940-05-28 Victor Clarence Dudley Riches Improvements relating to concrete piles
US3199300A (en) * 1961-05-22 1965-08-10 Foundation Specialties Inc Pile construction
US3899891A (en) * 1974-01-22 1975-08-19 William F Kelly Post-tensioned prestressed pile assembly
GB1595432A (en) * 1976-11-02 1981-08-12 Gillen William F Precast concrete piling
GB2172038A (en) * 1985-03-06 1986-09-10 Roxbury Ltd Pile sections and joints
JPS61225422A (ja) * 1985-03-29 1986-10-07 Asahi Chem Ind Co Ltd コンクリ−ト杭
FR2634804A1 (fr) * 1988-07-28 1990-02-02 Soletanche Procede pour la mise en place d'un poteau prefabrique dans un forage de grande profondeur et poteau pour la mise en oeuvre de ce procede
GB2254638A (en) * 1991-04-11 1992-10-14 Roxbury Ltd Concrete pile
GB2257737A (en) * 1991-07-19 1993-01-20 Roxbury Ltd Hollow reinforced pile sections
EP0691434A1 (fr) * 1994-07-07 1996-01-10 BICC Public Limited Company Pieux en béton modulaires
EP1741838A2 (fr) * 2005-07-08 2007-01-10 Betonson B.V. Méthode de préparation d'un pieu avec éléments de remplissage ainsi que pieu

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL29578C (fr) *
US2065507A (en) * 1935-05-18 1936-12-29 Massey Concrete Products Corp Concrete pile
GB521682A (en) * 1939-03-02 1940-05-28 Victor Clarence Dudley Riches Improvements relating to concrete piles
US3199300A (en) * 1961-05-22 1965-08-10 Foundation Specialties Inc Pile construction
US3899891A (en) * 1974-01-22 1975-08-19 William F Kelly Post-tensioned prestressed pile assembly
GB1595432A (en) * 1976-11-02 1981-08-12 Gillen William F Precast concrete piling
GB2172038A (en) * 1985-03-06 1986-09-10 Roxbury Ltd Pile sections and joints
JPS61225422A (ja) * 1985-03-29 1986-10-07 Asahi Chem Ind Co Ltd コンクリ−ト杭
FR2634804A1 (fr) * 1988-07-28 1990-02-02 Soletanche Procede pour la mise en place d'un poteau prefabrique dans un forage de grande profondeur et poteau pour la mise en oeuvre de ce procede
GB2254638A (en) * 1991-04-11 1992-10-14 Roxbury Ltd Concrete pile
GB2257737A (en) * 1991-07-19 1993-01-20 Roxbury Ltd Hollow reinforced pile sections
EP0691434A1 (fr) * 1994-07-07 1996-01-10 BICC Public Limited Company Pieux en béton modulaires
EP1741838A2 (fr) * 2005-07-08 2007-01-10 Betonson B.V. Méthode de préparation d'un pieu avec éléments de remplissage ainsi que pieu

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Publication number Publication date
NL2017517A (nl) 2018-03-27
NL2019619A (nl) 2018-03-27
NL2019619B1 (nl) 2018-07-23
NL2017517B1 (nl) 2018-07-23

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