EP0567507B1 - Procédé et dispositif permettant de construire et de désassembler un pont léger - Google Patents

Procédé et dispositif permettant de construire et de désassembler un pont léger Download PDF

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Publication number
EP0567507B1
EP0567507B1 EP92902877A EP92902877A EP0567507B1 EP 0567507 B1 EP0567507 B1 EP 0567507B1 EP 92902877 A EP92902877 A EP 92902877A EP 92902877 A EP92902877 A EP 92902877A EP 0567507 B1 EP0567507 B1 EP 0567507B1
Authority
EP
European Patent Office
Prior art keywords
poles
bridge
flushing
bridge section
pole
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.)
Expired - Lifetime
Application number
EP92902877A
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German (de)
English (en)
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EP0567507A1 (fr
Inventor
Frede Andresen Petersen
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Individual
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Individual
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Publication date
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Publication of EP0567507A1 publication Critical patent/EP0567507A1/fr
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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
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/24—Placing by using fluid jets
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/02—Piers; Abutments ; Protecting same against drifting ice
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/26—Devices for erecting or removing fences

Definitions

  • the present invention relates to a method of establishing light bridges or similar structures that are carried by poles mounted in the sea bottom.
  • the erection of light bridges is an age-old craft, based on the ramming down of poles and in a variety of manners using these poles as carriers for longitudinal side members which, in turn, act as carriers for some upper step surface elements such as cross boards.
  • the pole ramming work and some other mounting work is effected from the sea side, purely manually or with the aid of a sea carried ramming and working platform, when the work is done by professionals.
  • the invention is especially linked with the professional trade of establishing the light bridges, using suitable auxiliaries, so it is relevant to consider the more recent development in this field.
  • a major contribution over the past several years has been to avoid the ramming down of the poles and instead using an easier and quicker flushing down technique, whereby a flushing spear is used for easing the pole down into the ground, pressurised water being sent out through the lower end of the spear.
  • the spear which is usable for flushing down both pipe poles and wooden poles, is moved into the ground together with the pole, only with the spear point located slightly beneath the lower end of the pole, such that the material underneath the pole end is currently flushed away so as to condition a particularly easy and rapid working down of the pole.
  • the poles may be taken up by utilising their upper connector ends for connection with a hose supplied with compressed air or pressurised water, as it is then possible to take up the otherwise rigidly mounted poles with a minimum of labour and equipment, such that the bridge may be taken in for the winter and re-established by spring in a rather easy manner.
  • the invention provides for a new and advantageous bridge mounting method as specified in claim 1, enabling a single operator to build out the bridge with the use of suitably prepared poles and bridge elements and without any assistance from the sea side.
  • a simple crane structure is used for successively supporting each new bridge element at its mounting place, whereby the operator uses this element as a working platform for flushing down the proper poles therefor.
  • An inverted method can be used for the dismounting of the bridge, with the crane supporting each outermost bridge element while the poles thereof are pressed up as described above.
  • the invention comprises a relevant construction system as specified in claim 6.
  • Fig. 1 illustrates a sea bottom, in which a tubular pole 2 is flushed down by means of an upper connection hose 4 to a water pump (not shown), which may well be a centrifugal pump, as the required pressure is not particularly high.
  • a water pump (not shown), which may well be a centrifugal pump, as the required pressure is not particularly high.
  • the bottom material will pack around the pole, which will then be able to stand in a stable manner when the depth of the flushing down is reasonably large; with the use of pipes of a diameter of 5-7.5 cm (2-3 inches) the depth should of course be somewhat larger than in case of thick wooden poles, typically of the magnitude 1-3 m.
  • the use of foot plates on the poles for contacting the sea bottom will greatly stabilise the poles and ensure a high carrying capacity.
  • FIG. 2 In fig. 2 is shown such a pipe pole 2, the upper end of which is connected with the hose 4 by means of a suitable connector 6. At its lower end the pipe 2 is terminated by simple cutting, which will provide for a sufficient flushing effect for poles that should only be driven down to a depth of some 1.5 m, of course depending on the type of the bottom material. For larger depths it is recommendable to utilise a stronger flushing effect, which will not necessarily require a stronger pump, as it is obtainable merely by using a narrower nozzle opening 8 on the pipe pole 2, as shown in Fig. 2b. This opening may even be supplemented by an annular row of outwardly and downwardly directed nozzle openings 10 as shown in Fig. 2c; it has been found that poles with such a design are suitable for driving down to the depth range of 1.5 - 2.5 m.
  • pipe poles can be used, which, as shown in Figs. 2d and 2e, have a lower funnel shaped end member 12 that is vertically reciprocal on an axial guiding rod 14 relatively to the lower rigid end of the pole; hereby the said beat movements will occur in a more firm manner between the pipe pole 2 and the funnel member 12, this resulting in a still harder beat effect that is advantageous when the pole is driven down to a depth larger than e.g. 2.5 m.
  • Fig. 3 illustrates an initial building out of a bridge, by which it has been possible from the shore side to flush down the first set of pipe poles 2 for receiving a first, preferably prefabricated bridge element 16, which is fastenable to the upstanding poles by the use of any suitable type of fastening fittings.
  • the pole 2 may carry a horizontal bottom support plate 18 that will determine the intrusion depth and stabilise the pole against tilting and thus reduce the need of a deep intrusion of the pole in the ground.
  • a crane 20 is mounted on the fixed bridge element 16, the crane having a jig 22 that is usable for carrying a further bridge element 16', which, as shown in Fig. 5, will be outwardly displaced into a suspended position adjacent the end of the bridge, in which position this element is used as a working platform for the flushing down of an additional pair of pipe poles 24 by means of a water pump 26 sucking water from the lake or sea water.
  • the bridge element 16' is secured thereto, still from above and by the labour of but a single operator, and thereafter the bridge can be built further out with the use of more bridge elements as shown in Fig. 6. is

Abstract

Afin d'enfoncer des mâts légers, destinés par exemple à la construction d'un pont léger, on utilise des mâts tubulaires (2) montés au moyen d'un procédé d'enfoncement par jets de fluide dans lequel on n'utilise aucune lance à jets de fluide puisque lesdits mâts tubulaires (2) eux-mêmes constituent des lances autonomes et permanentes. De ce fait, les mâts sont faciles à remonter lorsque l'on y injecte de l'air comprimé. Le travail de construction est simplifié à un point tel que les ponts légers peuvent désormais être construits par un seul opérateur suivant un procédé prévu à cet effet.

Claims (7)

  1. Procédé pour ériger des ponts, plates-formes et structures similaires légers du type porté par mâts, comprenant la sélection ou la fourniture de pièces de mâts tubulaires (2) de longueurs requises, le montage des mâts dans le fond de la mer en utilisant le principe d'enfoncement et le montage d'éléments de ponts (16') en liaison avec les mâts,
    caractérisé par les étapes suivantes :
    - établir une première partie de pont initiale (16) faisant saillie du niveau de la mer ;
    - fixer à l'extrémité externe de cette partie de pont (16), une structure à grue (20,22) faisant saillie à la fois intérieurement et extérieurement de l'extrémité externe de la partie de pont ;
    - transporter vers ladite structure à grue une seconde partie de pont (16') et la relier à des moyens de hissage de la structure à grue (20,22) ;
    - hisser la seconde partie de pont (16') et la déplacer, suspendue à la structure à grue (20,22), vers une position juste à l'extérieur de l'extrémité libre de la première partie de pont (16) ;
    - utiliser la partie de pont ainsi déplacée (16') comme une plate-forme de travail pour l'enfoncement des mâts appropriés (2) de cette partie de pont ;
    - par ce moyen, utiliser les mâts eux-mêmes pour effectuer leur propre enfoncement en forçant l'eau d'enfoncement à travers des moyens de canal centraux ou extérieurs des mâts ;
    - fixer la même partie de pont (16') aux mâts enfoncés (2) ; et
    - déplacer la structure à grue (20,22) vers l'extrémité externe de cette partie de pont (16') pour une opération de montage renouvelée, si appropriée.
  2. Procédé selon la revendication 1, dans lequel l'extrémité interne de la nouvelle partie de pont (16') est fixée à l'extrémité externe de la première partie (16), et de nouveaux mâts (2) sont montés seulement comme une paire de mâts adjacents, à l'extrémité externe de la nouvelle partie de pont (16').
  3. Procédé selon la revendication 1 dans lequel les mâts sont de simples pièces de conduit (2) découpées à des longueurs correspondant aux exigences individuelles comme données par la profondeur d'eau à l'emplacement de montage concerné.
  4. Procédé selon la revendication 1 ou 3, dans lequel les pièces de mât (2) sont adaptées individuellement en longueur selon la profondeur d'intrusion souhaitée dans le fond de la mer et la profondeur d'eau à l'emplacement de montage concerné, et sont munies d'une plaque d'engagement transversale du fond de la mer (18) dans la position concernée sur la pièce de mât individuelle (2).
  5. Procédé correspondant à la revendication 1, mais mise en oeuvre d'une manière inverse pour une mise en place du pont, de façon successive, en remontant les mâts les plus externes (2) en utilisant leurs canaux d'enfoncement comme des conduites pour de l'air comprimé ou pour un écoulement d'eau.
  6. Système de construction pour ériger des ponts légers par le procédé revendiqué dans la revendication 1, comprenant en combinaison :
    - un nombre d'éléments de pont (16,16') à joindre bout à bout ;
    - un nombre de mâts de support (2) ayant des moyens de canal centraux ou externes pour amener de l'eau d'enfoncement dans ceux-ci du haut vers le fond du mât ;
    - une pompe à eau (26) susceptible de fonctionner pour être reliée au sommet desdits mâts (2) pour pomper l'eau d'enfoncement vers une sortie de fond de ceux-ci ; et
    - une structure à grue (20,22) susceptible d'être montée en liaison avec l'extrémité externe d'un élément de pont le plus externe (16), de façon à être capable de recevoir un nouvel élément de pont (16') et de porter cet élément vers l'extérieur vers une position devant l'élément de pont le plus externe précédent (16), avec une capacité de support suffisante pour rendre le nouvel élément de pont (16') utilisable comme une plate-forme de travail pour enfoncer les mâts concernés (2) pour être par la suite relié à cet élément (16').
  7. Système selon la revendication 6, dans lequel les mâts (2) sont pré-adaptés avec des parties concernées de longueur au-dessus et au-dessous du fond de la mer, respectivement, et sont munis de moyens à plaques de base transversale (18) situés dans des positions respectives correspondant à une position de profondeur mesurée ou attendue du fond de la mer.
EP92902877A 1991-01-14 1992-01-14 Procédé et dispositif permettant de construire et de désassembler un pont léger Expired - Lifetime EP0567507B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK6391A DK6391D0 (da) 1991-01-14 1991-01-14 Fremgangsmaade og udstyr til neddrivning og optagning af lette paele og til bygning af lette broer
DK63/91 1991-01-14
PCT/DK1992/000011 WO1992012295A1 (fr) 1991-01-14 1992-01-14 Procede et materiel permettant d'enfoncer et de remonter les mats legers destines a la construction d'un pont leger

Publications (2)

Publication Number Publication Date
EP0567507A1 EP0567507A1 (fr) 1993-11-03
EP0567507B1 true EP0567507B1 (fr) 1997-12-10

Family

ID=8089313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92902877A Expired - Lifetime EP0567507B1 (fr) 1991-01-14 1992-01-14 Procédé et dispositif permettant de construire et de désassembler un pont léger

Country Status (7)

Country Link
EP (1) EP0567507B1 (fr)
AU (1) AU1170592A (fr)
DE (1) DE69223503T2 (fr)
DK (2) DK6391D0 (fr)
ES (1) ES2112899T3 (fr)
GR (1) GR3026300T3 (fr)
WO (1) WO1992012295A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996021770A1 (fr) * 1995-01-11 1996-07-18 Frede Andresen Petersen Procede et materiel destines a l'installation de zones d'activite, preferablement temporaires, dans des villes ou a proximite de celles-ci
DE102007055109A1 (de) * 2007-11-16 2009-05-28 Bilfinger Berger Ag Verfahren und eine Vorrichtung zur Errichtung einer Brücke sowie eine Pfahlführung für die Gründung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE512785C (de) * 1930-11-17 Friedrich Wilhelm Lang Dipl In Spuelrohr mit Spuelkopf zum Einspuelen von Pfaehlen
GB398354A (en) * 1932-10-20 1933-09-14 Walter Taylor Improvements relating to steel driving piles for use in forming building foundations in water beds and the like
JPS54155607A (en) * 1978-04-06 1979-12-07 Hisaharu Nakashima Method of pile driving construction to base rock
US4637758A (en) * 1982-03-11 1987-01-20 Kabushiki Kaisha Komatsu Seisakusho Method of driving hollow piles into the ground
US4761096A (en) * 1987-02-24 1988-08-02 Lin Sheng S Universal footing with jetting system
DE3726472A1 (de) * 1987-08-08 1989-02-16 Dyckerhoff & Widmann Ag Verfahren zum absenken eines rohrfoermigen gruendungselementes sowie vorrichtung zum durchfuehren des verfahrens

Also Published As

Publication number Publication date
DE69223503T2 (de) 1998-07-09
ES2112899T3 (es) 1998-04-16
WO1992012295A1 (fr) 1992-07-23
DK0567507T3 (da) 1998-08-24
AU1170592A (en) 1992-08-17
DK6391D0 (da) 1991-01-14
DE69223503D1 (de) 1998-01-22
GR3026300T3 (en) 1998-06-30
EP0567507A1 (fr) 1993-11-03

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