WO2017051041A1 - Ponton submersible et procédé de fonctionnement - Google Patents

Ponton submersible et procédé de fonctionnement Download PDF

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Publication number
WO2017051041A1
WO2017051041A1 PCT/ES2015/070698 ES2015070698W WO2017051041A1 WO 2017051041 A1 WO2017051041 A1 WO 2017051041A1 ES 2015070698 W ES2015070698 W ES 2015070698W WO 2017051041 A1 WO2017051041 A1 WO 2017051041A1
Authority
WO
WIPO (PCT)
Prior art keywords
floating platform
float
guides
submersible pontoon
movement
Prior art date
Application number
PCT/ES2015/070698
Other languages
English (en)
Spanish (es)
Inventor
Antonio Corredor Molguero
Original Assignee
Sociedad Anónima Trabajos Y Obras
Obrascón Huarte Laín, S.A.
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 Sociedad Anónima Trabajos Y Obras, Obrascón Huarte Laín, S.A. filed Critical Sociedad Anónima Trabajos Y Obras
Priority to PCT/ES2015/070698 priority Critical patent/WO2017051041A1/fr
Priority to ES201890015A priority patent/ES2683779B1/es
Publication of WO2017051041A1 publication Critical patent/WO2017051041A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering

Definitions

  • the present invention relates to a guiding device for submersible platforms, which provides stability to the platform at the time of its sinking, preventing the platform from contacting the bottom of the sea in its sinking.
  • the system is applicable in any type of submersible platform, then it is applicable in platforms used for the construction of drawers.
  • Floating reinforced concrete drawers are a common technology for the construction of gravity works in the maritime and port areas.
  • a floating drawer is a large prismatic block, composed of a slab of slab and a set of concrete walls that make up a multicellular shaft, so that the drawer thus lightened floats in the water, allowing its handling and transport to its location definitive When the drawer has reached its final location, it is ballasted (initially with water and then with solid material) so that its total weight allows it to resist the thrusts for which the drawer has been designed.
  • the shaft is usually executed by sliding formwork, for this a formwork is placed between 1, 0 and 1, 2 m above the floor, the concrete is poured and the formwork is raised simultaneously allowing the setting of the dough before it is outside the formwork in its movement. He
  • the sliding process is executed by means of hydraulic jacks that raise a structure that in turn supports the formwork panels and the work platform. To give continuity to the process, the formwork is removed once the slide is finished to place it on the floor of the next drawer.
  • the drawer increases its weight and therefore forces the assembly formed by the drawer plus the floating platform to gradually sink to balance the thrust according to the Archimedes principle.
  • the floating platform is completely submerged, and at that moment the drawer collaborates in the thrust of the whole drawer plus floating platform.
  • the floating platform is internally divided into tanks and has ballasting systems that allow to increase its weight during the process, so that the naval stability of the drawer assembly plus floating platform is maintained at all times, so that the platform maintains an upward thrust net while necessary to ensure flotation and stability of the drawer.
  • said drawer can float and be stable by itself, without the need for the floating platform to collaborate. At this moment the floating platform sinks for its withdrawal and at the same time there is the launching of the drawer.
  • the floating platform floating towers which are floating tanks attached to the floating platform above the deck where the drawer has been manufactured, with a sufficient height so that when the floating platform sinks and allows the drawer to float , a part of the towers continues to emerge avoiding the submarine condition of the floating platform and allows the stability of the platform-tower assembly,
  • the usual way to guide the floating platform during the descent is by means of a system of cables and pulleys that prevents the rotation and forces the corners where the cables are fixed to have a parallel displacement, so that by arranging the system of cables and pulleys in the four bands of the platform (with pulleys in the corners of the same and cables that ascend in said points) the horizontality of the same in its descent is assured, maintaining the position in the same vertical.
  • the invention described discloses a device for guiding a downward movement of a submersible pontoon, the device object of the invention has a number of advantages over the known devices used.
  • the system has no limitation of strut to be manufactured
  • the submersible pontoon object of the invention comprises a floating platform and a guiding device for a vertical movement of the floating platform.
  • the device for guiding the vertical movement of the floating platform comprises at least one float, with at least two guides, at least two supports attached to the floating platform, where the guides comprise a stop element located at one end of the guide and where the guides rest on the supports so that the guides direct a vertical movement of the floating platform.
  • the guiding device comprises a single U-shaped float and in another one the guiding device It comprises two floats.
  • the floats are located on opposite sides of the floating platform. Additionally in this second embodiment the submersible pontoon comprises at least two guides in each float.
  • the submersible pontoon object of the invention comprises a synchronous guidance system of the movement of the floating platform with respect to the at least one float to direct the vertical movement of the floating platform.
  • the synchronous guidance system of the movement of the floating platform with respect to the submersible pontoon float object of the invention has three possible embodiments.
  • each pair of pulleys comprises a first pulley and a second pulley, and where each pair of pulleys is fixed on opposite sides of the floating platform, and
  • each of the two cables joins an upper end of a first guide and a lower end of a second guide and, between the joint with the first guide and the union with the second guide, it goes through a first pulley and a second pulley of different pair of pulleys, the cables being tensioned.
  • each pair of pulleys is fixed on a support, the supports with a pair of pulleys facing opposite sides of the floating platform.
  • the second embodiment of the synchronous guidance system of the movement of the floating platform with respect to the float comprises at least one winch in a float with a winch cable fixed at one end to the floating platform.
  • the third embodiment of the platform synchronous guidance system floating with respect to the float comprises at least one winch in an end zone of a float with a winch cable fixed at a fixing point in an end zone of the float opposite to that of the winch, with said winch cable running through the floating platform by the passage through two pulleys.
  • the guides can be straight linear elements or telescopic parts, or combination of the above.
  • Each support of the floating platform of the submersible pontoon object of the invention comprises at least one clamp through which a guide runs.
  • the guides are fixed rigidly and in a direction perpendicular to the float.
  • the supports comprise at least one sliding support on which the guide rests when it passes through the interior of said supports.
  • the object of the invention is also an operation procedure of a submersible pontoon comprising the following steps:
  • Figure 1 is a perspective view of a first embodiment of the pontoon object of the invention.
  • Figure 2 is a perspective view of a second embodiment of the pontoon object of the invention.
  • Figures 3.1 to 3.3 show perspective views of a sequence of the operation procedure of the device object of the invention.
  • Figure 4 shows a perspective view from the bottom in which the synchronous guidance system of the movement of the floating platform with respect to the floats is seen.
  • Figure 5 shows a front view of a modification of the synchronous guidance system of the movement of the floating platform with respect to the floats of Figure 4.
  • Figure 6 shows a perspective view of the pontoon object of the invention incorporating an embodiment of the synchronous guidance system of the movement of the floating platform with respect to the floats different from that of Figures 4 and 5, in the figure a detail is shown with the components of said synchronous guidance system of the movement of the floating platform with respect to the floats.
  • the object of the invention is a submersible pontoon comprising a floating platform (1) and a device for guiding the vertical movement of the floating platform (1).
  • the pontoon object of the invention solves the problems that arise for the descent and recovery of the floating platform (1) used in the construction of floating concrete drawers.
  • the device for guiding the downward movement of a floating platform (1) of the pontoon object of the invention has two main embodiments, in the preferred embodiment of the invention, it comprises a single U-shaped float (2) that extends on three sides of the floating platform (1) and leaves a free side, in a second embodiment the device for guiding the downward movement of a floating platform (1) comprises two floats (2) that are located on two opposite sides of the floating platform (1).
  • the U-shaped float (2) comprises two opposite branches and a branch that joins the two opposite branches. From the two opposite branches, located on two opposite sides of the floating platform (1), four guides (3) comprising a stop element (5) at its lower end arise perpendicularly and towards the bottom of the sea. And in the embodiment in which the guiding device of the downward movement of a floating platform (1) comprises two floats (2), from each float (2) four guides (3) perpendicularly and towards the bottom of the sea arise, comprising a stop element (5) at its lower end.
  • the floating platform (1) comprises a plurality of supports (4), said supports (4) in the preferred embodiment of the invention are configured as clamps through which the guides (3) run, so that the floating platform (1) ) used in the construction of drawers for ports, when it descends as the construction of the drawer evolves, it descends in a guided way since the supports (4) run through the guides (3).
  • the guided movement of the guides (3) by the supports (4) occurs until the floating platform (1) rests on the stop elements (5), once the drawer built floating by itself, which is when a ballast of the floating platform (1) occurs and is free of the weight of the drawer.
  • said supports (4) comprise sliding supports (8), which in the preferred embodiment of the invention are formed by rollers and are located inside the clamps, for the support of the guides (3).
  • the floating platform (1) With the floating platform (1) resting on the abutment elements (5) by means of the supports (4), the floating platform (1) can be extracted from under the drawer constructed by means of a controlled drag of the float (2) or floats (2) , so that the submersible pontoon is taken to a new location for the construction of a new drawer.
  • the submersible pontoon object of the invention comprises a synchronous guidance system for the movement of the floating platform (1) with respect to the float (2) or floats (2).
  • the synchronous guidance system has three different embodiments.
  • the first embodiment of the synchronous guidance system comprises two sets of parts, so that the movement of the floating platform (1) in two areas of the floating platform (1) is controlled.
  • each set of pieces comprises two pairs of pulleys (6), a first pair of pulleys (6) fixed to a support (4) of one side of the floating platform (1) and a second pair of pulleys ( 6) fixed to the opposite side of the floating platform (1), and two cables (7).
  • Each pair of pulleys (6) comprises a first pulley (6a) and a second pulley (6b).
  • each cable (7) takes the following route:
  • a first end of the cable (7) is fixed to the upper end of a first guide (3) located on a first side of the floating platform (1),
  • the cable then passes through a second pulley (6b) fixed to a second support (4) through which a second guide (3) passes, the second support (4) being on a second side that is opposite the first side of the floating platform (1), - a second end of the cable (7) is fixed to the lower end of the second guide (3), located in correspondence with the first guide (3) but on the second side.
  • the cables (7) must be tensioned.
  • the second embodiment of the synchronous guidance system comprising a winch (9) in a float (2), with the winch cable (10) fixed by the opposite end of the winch (9) at a point of attachment to the floating platform (1) located on the vertical winch (9).
  • the synchronous guidance system in the third embodiment, is formed by two devices located on the floats (2) so that they are symmetrically positioned with respect to the floating platform (1).
  • Each device comprises a winch (9) fixed in an end zone of a float (2) that picks up one end of a winch cable (10) and with the opposite end of said winch cable (10) fixed at a fixing point (11) in an opposite end zone of the same float (2), with the winch cable (10) passing through two pulleys (6c) fixed to the floating platform (1).
  • the pulleys (6c) are located in the same vertical where the ends of the winch cable (10) are fixed to the float (2).
  • the guides (3) are telescopic elements whose length can be adjusted to adapt to different openings of different ports where the pontoon object of the invention will work.
  • the floating platform (1) begins to sink, the guides (3) slide along the supports (4),
  • a final ballast of the horizontal platform (1) is produced by taking said horizontal platform (1) to the lower end of the guides (3) where it contacts the stop element (5 ), so that in this position the horizontal platform (1) is directed by the float (2) or the floats (2) from which it hangs through the guides (3) and the supports (4);
  • the horizontal platform (1) is moved by means of the drag of the float (2) or the floats (2) for its extraction from under the concrete drawer and its subsequent location in a new location to begin the construction of a new concrete drawer ;
  • the pontoon object of the invention comprises earth ties (not shown in the figures) which have the purpose of maintaining the position of the pontoon stable.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

La présente invention concerne un ponton submersible qui comprend une plateforme flottante (1) et un dispositif de guidage d'un mouvement vertical de la plateforme flottante (1), et le dispositif de guidage d'un mouvement de descente de la plateforme flottante (1) comprend au moins un flotteur (2), comportant au moins deux guides (3), au moins deux supports (4) reliés à la plateforme flottante (1), lesquels guides (3) ont un élément d'arrêt (5) situé sur une extrémité du guide (3) et les guides (3) s'appuyant dans les supports (4) de sorte que les guides (3) dirigent un mouvement vertical de la plateforme flottante (1). Dans une forme de réalisation, le dispositif de guidage d'un mouvement vertical de la plateforme flottante (1) comprend un unique flotteur (2) en forme de U et dans une autre forme de réalisation, il comprend deux flotteurs (2).
PCT/ES2015/070698 2015-09-24 2015-09-24 Ponton submersible et procédé de fonctionnement WO2017051041A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/ES2015/070698 WO2017051041A1 (fr) 2015-09-24 2015-09-24 Ponton submersible et procédé de fonctionnement
ES201890015A ES2683779B1 (es) 2015-09-24 2015-09-24 Pontona sumergible y procedimiento de funcionamiento

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2015/070698 WO2017051041A1 (fr) 2015-09-24 2015-09-24 Ponton submersible et procédé de fonctionnement

Publications (1)

Publication Number Publication Date
WO2017051041A1 true WO2017051041A1 (fr) 2017-03-30

Family

ID=58386183

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2015/070698 WO2017051041A1 (fr) 2015-09-24 2015-09-24 Ponton submersible et procédé de fonctionnement

Country Status (2)

Country Link
ES (1) ES2683779B1 (fr)
WO (1) WO2017051041A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070868A (en) * 1975-10-25 1978-01-31 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Off-shore drilling platform and method of mounting
GB2095730A (en) * 1981-03-31 1982-10-06 Babcock Anlagen Ag Support leg lifting means in an offshore structure
US6718901B1 (en) * 2002-11-12 2004-04-13 Technip France Offshore deployment of extendable draft platforms
US20050158125A1 (en) * 2002-03-22 2005-07-21 Pierre-Armand Thomas Structure for the transport, installation and dismantlement of a bridge of a fixed oil platform and method for implementing said structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070868A (en) * 1975-10-25 1978-01-31 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Off-shore drilling platform and method of mounting
GB2095730A (en) * 1981-03-31 1982-10-06 Babcock Anlagen Ag Support leg lifting means in an offshore structure
US20050158125A1 (en) * 2002-03-22 2005-07-21 Pierre-Armand Thomas Structure for the transport, installation and dismantlement of a bridge of a fixed oil platform and method for implementing said structure
US6718901B1 (en) * 2002-11-12 2004-04-13 Technip France Offshore deployment of extendable draft platforms

Also Published As

Publication number Publication date
ES2683779A1 (es) 2018-09-27
ES2683779B1 (es) 2019-07-02

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