(19)
(11)EP 2 719 834 B1

(12)EUROPEAN PATENT SPECIFICATION

(45)Mention of the grant of the patent:
21.09.2016 Bulletin 2016/38

(21)Application number: 12796671.1

(22)Date of filing:  21.03.2012
(51)International Patent Classification (IPC): 
E02D 27/52(2006.01)
E02B 1/00(2006.01)
F24J 2/52(2006.01)
E02D 27/42(2006.01)
E02B 17/02(2006.01)
E02D 7/06(2006.01)
E02B 17/00(2006.01)
(86)International application number:
PCT/KR2012/002020
(87)International publication number:
WO 2012/169723 (13.12.2012 Gazette  2012/50)

(54)

METHOD FOR INSTALLING AN UNDERWATER SUPPORT COLUMN

VERFAHREN ZUR INSTALLATION EINER UNTERWASSER-TRAGESÄULE

PROCÉDÉ PERMETTANT D'INSTALLER UNE COLONNE DE SUPPORT SOUS-MARINE


(84)Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30)Priority: 07.06.2011 KR 20110054531

(43)Date of publication of application:
16.04.2014 Bulletin 2014/16

(73)Proprietor: Woo, Do Young
Gangwon-do 200-921 (KR)

(72)Inventor:
  • Woo, Do Young
    Gangwon-do 200-921 (KR)

(74)Representative: Adamson Jones 
BioCity Nottingham Pennyfoot Street
Nottingham NG1 1GF
Nottingham NG1 1GF (GB)


(56)References cited: : 
JP-A- 6 146 305
KR-A- 20050 075 929
US-A- 3 255 591
JP-A- 2007 239 420
KR-A- 20100 008 458
US-A- 4 222 684
  
      
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).


    Description

    Technical Field



    [0001] The present invention relates to a method for installing a support column under the water, for securely supporting a solar generating apparatus floatably installed on a surface of a river, a lake, sea or an artificial water tank placed on a land.

    Background Art



    [0002] In general, a solar generating apparatus produces electricity using solar cells generating photovoltaic power by a photoelectric effect when sunlight is irradiated.

    [0003] As shown in FIG. 1, a solar generating apparatus 100 installed on the water includes a floating plate 110 floating on the water, a solar generating apparatus (e.g., only a solar cell module 120, as illustrated in FIG. 1.) mounted on the floating plate 110, a support column 130 passing through the floating plate 110 and disposed to be perpendicular to the water surface, a first supporting unit 140 fixedly connected to a top end of the support column 130 and a second supporting unit 150 fixedly connected to a bottom end of the support column 130.

    [0004] First, the floating plate 110 positioned on the water surface is formed of a buoyant material and has a through opening 111 formed at a predetermined position, preferably at a central portion thereof.

    [0005] A solar generating apparatus, such as a solar cell module 120, a power converting apparatus or a storage battery, is installed on the floating plate 110. The construction and function of the solar generating apparatus are generally known so that and a detailed description thereon will be omitted.

    [0006] In addition, the support column 130 passes through a through opening 111 formed in the floating plate 110. A terminating end (e.g., a bottom end) of the support column 130 corresponds to a bottom, and the other terminating end (e.g., a top end) of the support column 130 protrudes to a top portion of the floating plate 110.

    [0007] The support column 130 is a steel rod having a predetermined diameter and has strength enough to support the floating plate 110.

    [0008] In the meantime, the first supporting unit 140 connected to the top end of the support column 130 includes a plurality of cables. FIG. 2 illustrates the first supporting unit 140 constituted by two cables, that is, first and second cables 141 and 142.

    [0009] The first cable 141 of the first supporting unit 140 has a first terminating end fixed to the top end of the support column 130 and a second terminating end fixed to a structure 141-1 installed on one side of opposite riverbanks. In addition, the second cable 142 of the first supporting unit 140 has the first terminating end fixed to the top end of the support column 130 and the second terminating end fixed to a structure 142-1 installed on the other side of opposite riverbanks.

    [0010] Here, the first and second cables 141 and 142 of the first supporting unit 140 are preferably arranged in a line and most preferably arranged in a direction perpendicular to the flow of the river. In addition, the first and second cables 141 and 142 are preferably perpendicular to the support column 130.

    [0011] The second terminating end of the first cable 141 is fixed to a winch 141-2 installed in the structure 141-1. Accordingly, tension of the first cable 141 may be adjusted according to actuation of the winch 142-1.

    [0012] Meanwhile, a sensor 141-3 sensing tension of a cable may be installed in the first cable 141. The sensor 141-3 transmits a signal associated with the sensed tension of the first cable 141 to a controller (not shown). The controller actuates the winch 141-2 based on the signal to wind or unwind the first cable 141.

    [0013] Here, the winch 142-2 having the terminating end of the second cable 142 fixed thereto may be installed in the structure 142-1, and a sensor 141-3 sensing tension of the second cable 142 may also be installed in the second cable 142.

    [0014] In addition, the second supporting unit 150 connected to the bottom end of the support column 130 includes a plurality of cables. FIG. 2 illustrates the second supporting unit 150 constituted by four cables, that is, first, second, third and fourth cables 151, 152, 153 and 154. The first to fourth cables 151, 152, 153 and 154 of the second supporting unit 150 have the same configuration, and will now be described with regard to only the first cable 151 by way of example.

    [0015] The first cable 151 of the second supporting unit 150 has a first terminating end fixed to the bottom end of the support column 130 and a second terminating end fixed to a bottom adjacent to one riverside. Here, various elements may be used to fix the second terminating end of the first cable 151 to the bottom adjacent to one riverside. For example, in a state in which an anchor 151-1 is fixed to the second terminating end of the first cable 151, the anchor 151-1 is fixed to the bottom, thereby fixing the second terminating end of the first cable 151 on the river floor. Alternatively, a concrete structure may be constructed on the bottom, and the second terminating end of the first cable 151 may then be fixed to the concrete structure.

    [0016] Meanwhile, the number of cables constituting the second supporting unit 150 is not limited. However, in order to effectively support the floating plate 110, that is, in order to suppress the floating plate 150 from moving to a downstream of the river or to either riverside, four cables 151, 152, 153 and 154, which are spaced apart from each other at an angular interval of 90 degrees, are preferably arranged at an angle of 45 degrees with respect to a direction of the flow of the river.

    [0017] Hereinafter, the operation of the solar generating apparatus 100 installed on the water will be described with reference to the accompanying drawings.

    [0018] In the conventional solar generating apparatus 100, the floating plate 110 may move up and down along the support column 130 as the water level of a river, a lake, a sea or an artificial water tank varies. That is to say, the floating plate 110 freely moves up and down according to the variation of water level.

    [0019] That is to say, positions of the solar generating apparatus 100, that is, positions of the floating plate 110 and the solar generating apparatus 100, are indicated by dotted lines of FIG. 2, which illustrates a state in which the floating plate 110 is lowered along the support column 130 according to the water level.

    [0020] In the conventional solar generating apparatus 100, a terminating end (i.e., a bottom end) of the support column 130 corresponds to the bottom and is allowed to stand up. The support column 130 is constructed such that it is allowed to stand up by the first supporting unit 140 and the second supporting unit 150 installed at the top and bottom ends of the support column 130.

    [0021] Therefore, in a case where the tension of a cable of one of the first supporting unit 140 and the second supporting unit 150 varies, the support column 130 in a standing state leans to one side, so that the floating plate 110 may be unstably supported. In addition, it is quite difficult to install the support column 130 under the water due to its mechanical complexity.

    [0022] JPH06146305 discloses a pile which is inserted into main columns 4 of a prefabricated pier stud 1 constituted of the main columns 4 consisting of a longer pipe at large diameter reaching the surface of the water from the base of the sea-bed 11 and a plurality of skirt columns 5 consisting of a shorter pipe at large diameter rigidly connected with a plurality of stages of connection members 22 arranged to the outside of the base of the main columns and the skirt columns 5 and is penetrated to the sea-bed ground 7. A gap between the columns and pile is filled with grout, and the insides of the main columns 4 are filled with concrete.

    [0023] JP2007239420 discloses a foundation structure for preventing floating of the structure, containing a prefabricated pile being arranged in the pile pit bored to the ground in the lower section of the structure, being extended to the pile pit in a coaxial manner to the bottom section of the pile pit so as to support the structure and having a hollow section and the anchorage body arranged in the anchor pit formed to the pile pit in the coaxial manner to the ground in the lower section of the pile pit. The structure of the foundation further contains a connecting means disposed to the hollow section and the anchor pit as the connecting means connecting the anchorage body and the structure and the fillers filled into the anchor pit and the hollow section and composed of the curable material.

    Disclosure of the Invention



    [0024] The present invention is invented to solve the above-mentioned shortcomings, an object of the present invention is to provide a method for installing a support column under the water, which facilitates construction of a solar generating apparatus and which can more firmly support a floating plate.

    [0025] According to the invention, there is provided a method for installing a support column under the water, as defined in the appended claim 1.

    [0026] The method for installing a support column under the water according to the present invention may further include the sixth step of placing an accelerating agent containing concrete or mortar into the support column and curing it.

    [0027] The method for installing a support column under the water according to the present invention may further include the step 6' of fastening a lower portion of the support column to a top surface of the supporting plate.

    [0028] As described above, in the method for installing a support column under the water, a solar generating apparatus mounted on a floating plate can be more securely supported by firmly installing a support column.

    Brief Description of the Drawings



    [0029] The objects, features and advantages of the present invention will be more apparent from the following detailed description in conjunction with the accompanying drawings, in which:

    FIG. 1 is a plan view of a conventional solar generating apparatus installed on the water (river);

    FIG. 2 is a cross-sectional view taken along the line A-A of FIG. 1;

    FIG. 3 is a plan view of a solar generating apparatus installed on the water according to an embodiment of the present invention;

    FIG. 4 is a cross-sectional view taken along the line A-A of FIG. 3;

    FIG. 5 is a partly enlarged view illustrating a process for coupling floating plates;

    FIG. 6 illustrates a coupling state of the floating plates of FIG. 5 and an operation of the coupled floating plates;

    FIG. 7 illustrates a state in which a support column is installed under the water according to an embodiment of the present invention;

    FIG. 8 is a flowchart illustrating a method of installing the support column is installed under the water according to one embodiment of the present invention;

    FIG. 9 illustrates a modified example of the installation state shown in FIG. 7;

    FIG. 10 illustrates an alternative state in which a support column is installed under the water; and

    FIG. 11 is a flowchart illustrating an alternative method of installing the support column is installed under the water.


    Best Mode for Carrying Out the Invention



    [0030] Hereinafter, a method for installing a support column under the water according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

    [0031] Before describing the present invention, it should be understood that the terms and words used in the specification and the appended claims should not be construed as limited to general and dictionary meanings, but interpreted based on the meanings and concepts corresponding to technical aspects of the present invention on the basis of the principle that the inventor is allowed to define terms appropriately for the best explanation for the invention.

    [0032] Therefore, embodiments described in the specification and the example illustrated in the accompanying drawings herein is just a mere example for the purpose of illustrations only, not intended to represent all the technical aspects of the embodiment, the scope of the invention, so it should be understood that various equivalents and modifications thereof could be made at the time of filing.

    [0033] As shown in FIGS. 3 and 4, the solar generation apparatus 1100 installed on the water according to an embodiment of the present invention includes floating plates 1110 floating on the water, a solar generating apparatus (e.g., only a solar cell module 120, as illustrated in FIGS. 3 and 4) mounted on each of the floating plates 1110, and a support column 1130 passing through each of the floating plates 1110 and disposed to be perpendicular to the water surface.

    [0034] First, the floating plates 1110 are formed of a plurality of buoyant materials and have a through opening 1111 formed at a central portion of the centrally positioned one of the floating plates 1110. In addition, the centrally positioned floating plate 1110 is stably positioned when it is connected to other arranged radially floating plates 1110 and may have an appropriate thickness and shape so as to firmly support the support column 1130.

    [0035] The floating plates 1110 according to the present invention are shaped of an rectangle of generally 2,000 to 3,000 pyeongs (Korean unit for area). Specifically, the floating plates 1110 consist of multiple rectangular units, each of which having an area of 200 to 300 pyeongs, connected to each other may be used. According to the present invention, a plate fastening unit 1160 may further be provided to connect the floating plates 1110 to each other.

    [0036] That is to say, as shown in FIG. 5, the plate fastening unit 1160 includes an insertion part 1161 installed to be supported to one side (e.g., the right side of FIG. 4) of the floating plate 1110, a receiving part 1162 installed to be supported to the other side (e.g., the left side of FIG. 4) of the floating plate 1110 and meshed with the insertion part 1161, and a fastening part 1163 passing through the insertion part 1161 and a side surface of the receiving part 1162 and connecting the insertion part 1161 and the receiving part 1162 to be rotatable with respect to each other.

    [0037] Here, the insertion part 1161 and the receiving part 1162 may be fixed on each of the floating plates 1110 to be rotatable up and down and left and right using a general connection member (not shown), which is generally known in the art and a detailed explanation thereof will be omitted.

    [0038] The plate fastening unit 1160 includes at least two plates fastening units installed on connection surfaces (side surfaces) between the floating plates 1110 to be connected to adjacent floating plates 1110 more firmly.

    [0039] Meanwhile, solar cell modules 1120 are arranged on top surfaces of the floating plates 1110. The configuration and functions of the solar generating apparatus 100 are the same as generally known in the art, and a detailed description thereof will be omitted.

    [0040] In addition, the support column 1130 passes through the through opening 1111 formed in the floating plate 1110. A terminating end (e.g., a bottom end) of the support column 1130 corresponds to a bottom of the river, and the other terminating end (e.g., a top end) of the support column 1130 protrudes to a top portion of the floating plate 1110.

    [0041] The support column 1130 may be formed of any material and may have any shape without limitation as long as the support column 1130 can support the floating plate 1110. For example, the support column 1130 may be a steel rod having a predetermined diameter.

    [0042] In particular, as shown in FIGS. 7 and 8, the method for installing a support column under the water according to one embodiment of the present invention includes the first step of installing a plurality of steel pipes 10 to stand up at regular distance on the floor F of a place with water (S110), the second step of inserting a drilling rod 20 into each of the steel pipes 10, to excavate a bedrock R with a bit 25 attached to an end portion of the drilling rod 20 and fixing the drilling rod 20 on the bedrock F (S120), and the third step of placing and curing an accelerating agent C containing concrete or mortar inside each of the steel pipes 10 (S130).

    [0043] The first step (S110) and the second step (S120) are performed using a drilling machine (not shown) used in developing underground water. The drilling machine may be transported to a drilling location through a barge (not shown).

    [0044] The general drilling machine includes a drilling rod, a bit, a bit rotation unit, a hydraulic motor, a hydraulic controller, and so on, and is widely used in the related art, and a detailed description thereof will be omitted.

    [0045] The first step (S110) and the second step (S120) may be simultaneously performed using the conventional drilling machine. That is to say, the steel pipes 10 are buried into the floor F, the drilling rod 20 is inserted into each of the steel pipes 10 and the bit 25 is exposed to a bottom portion of each of the steel pipes 10 to excavate the bedrock (R) and to fix the drilling rod 20 on the bedrock R.

    [0046] In third step (S130), concrete or mortar containing an accelerating agent (C) is placed and cured inside each of the steel pipes 10 to allow the steel pipes 10 to stand up firmly on the floor.

    [0047] Meanwhile, the method for installing a support column under the water according to an embodiment of the present invention may further include the third step of installing a supporting plate 30 which is passed through and supported by each of the steel pipes 10 and integrally fixing the steel pipes 10 on the floor (S140 and S240).

    [0048] Therefore, the plurality of steel pipes 10 are mutually supported to more firmly stand up. In addition, in order to reinforce a supporting state of the plurality of steel pipes 10 on the supporting plate 30, a steel rod I may be wound around the circumferential surface of each of the steel pipes 10.

    [0049] In addition, the method for installing a support column under the water according to an embodiment of the present invention may further include the fifth step of installing a support column 1130 accommodating the steel pipes 10 together to stand up and to be installed on the supporting plate 30 (S150) and the sixth step of placing and curing an accelerating agent (C) containing concrete or mortar into the support column 1130 (S160).

    [0050] As shown in FIG. 9, the step 6' of allowing a bottom portion of the support column 1130 (i.e., a flange 1131) to pass through the supporting plate 30 and to be fastened with the supporting plate 30 may be performed, instead of the sixth step (S160), using a fastening unit (not shown), thereby facilitating installation of the support column 1130.

    [0051] As described above, in the method for installing a support column under the water according to an embodiment of the present invention, the solar generating apparatus mounted on the floating plate 1110 can be more securely supported by allowing the support column 1130 to pass through by the floating plate 1110.

    [0052] Hereinafter, an alternative method for installing a support column under the water will be described in detail with reference to the accompanying drawings.

    [0053] As shown in FIGS. 10 and 11, the first step (S210) to the fourth step (S240) of this embodiment are the same as step 1 (S110) to step 4 (S140) of the previous embodiment, and detailed descriptions thereof will be omitted.

    [0054] The current embodiment is different from the previous embodiment in that the step 5-1 (S250) and the step 6-1 (S260) are performed, instead of the fifth and sixth steps (S150 and 160) of the previous embodiment.

    [0055] That is to say, the step 5-1 (S250), a post 50 is allowed to stand up and to be installed on the supporting plate 30. The post 50 may be installed by various methods, including vaulting, welding, placing by an accelerating agent.

    [0056] For example, as shown in FIG. 10, a flange 51 is formed at a lower portion of the post 50, and the post 50 is fastened to a top portion of the supporting plate 30 using a widely known fastening unit.

    [0057] Next, in the step 6-1 (S260), an anchor plate 60 is mounted on the post 50, and a plurality of steel pipes 10 are allowed to pass through the anchor plate 60 to then be fixed. Here, a connection loop 65 may further be installed on the top surface of the anchor plate 60 to be connected with various cables 151, 152, 153 and 154 of the conventional second supporting unit 150.

    [0058] As described above, in the method for installing a support column under the water according to another embodiment of the present invention, the cables 151, 152, 153 and 154 of the conventional second supporting unit 150 are connected to the connection loop 65 of the anchor plate 60, thereby stably supporting a bottom end of the support column 1130 installed in a non-buried manner, and ultimately more securely supporting the solar generating apparatus mounted on the floating plate 1110.

    [0059] Although exemplary embodiments of the present invention have been described in detail hereinabove, it should be understood that many variations and modifications of the basic inventive concept herein described, which may appear to those skilled in the art, will still fall within the spirit and scope of the exemplary embodiments of the present invention as defined by the appended claims.


    Claims

    1. A method for installing a support column under the water, the method comprising:

    the first step of installing a plurality of pipes (10) to stand up at regular distance on the floor of a place with water (S110);

    the second step of inserting a drilling rod (20) into each of the pipes, to excavate a bedrock (R) with a bit (25) attached to an end portion of the drilling rod (20) and fixing the drilling rod (20) on the bedrock (R) (S120);

    the third step of placing and curing an accelerating agent (C) containing concrete or mortar inside each of the pipes (10) (S130);

    the fourth step of installing a supporting plate (30) which is passed through and supported by each of the pipes (10) and integrally fixing the pipes (10) on the floor (S140); and characterised by

    the fifth step of installing a support column (1130) accommodating the pipes (10) together to stand up and to be installed on the supporting plate (30) (S150).


     
    2. The method of claim 1, further comprising the sixth step 6 of placing and curing an accelerating agent (C) containing concrete or mortar into the support column (1130) (S160).
     
    3. The method of claim 1, further comprising the step 6' of fastening a lower portion of the support column (1130) to a top surface of the supporting plate (30).
     


    Ansprüche

    1. Verfahren zum Installieren eines Stützpfeilers unter dem Wasser, wobei das Verfahren aufweist:

    den ersten Schritt eines Installierens einer Mehrzahl von Rohren (10), sodass sie in regelmäßigen Abstand auf dem Boden eines Platzes mit Wasser (S110) nach oben stehen;

    den zweiten Schritt eines Einsetzens eines Bohrgestänges (20) in jedes der Rohre, um einen Felsboden (R) mit einer Bohrspitze (25) abzutragen, die an einem Endabschnitt des Bohrgestänges (20) befestigt ist, und eines Festsetzens des Bohrgestänges (20) auf dem Felsboden (R) (S120);

    den dritten Schritt eines Platzierens eines Abbindebeschleunigers (C), der Beton oder Mörtel in jedem der Rohre (10) (S130) enthält, und des Aushärtens;

    den vierten Schritt eines Installierens einer Trägerplatte (30), die von jedem der Rohre (10) durchlaufen und von diesen getragen wird, und eines integralen Befestigens der Rohre (10) auf dem Boden (S140); und gekennzeichnet durch

    den fünften Schritt eines Installierens eines Stützpfeilers (1130), der die Rohre (10) zusammen aufnimmt, damit sie nach oben stehen und auf der Trägerplatte (30) (S150) installiert werden.


     
    2. Verfahren nach Anspruch 1, ferner aufweisend den sechsten Schritt 6 eines Platzierens eines Abbindebeschleunigers (C), der Beton oder Mörtel enthält, in den Stützpfeiler (1130) (S160), und Aushärtens.
     
    3. Verfahren nach Anspruch 1, ferner aufweisend den Schritt 6' eines Befestigens des unteren Abschnitts des Stützpfeilers (1130) an einer Oberseite der Trägerplatte (30).
     


    Revendications

    1. Procédé d'installation d'une colonne de support sous l'eau, le procédé comprenant :

    la première étape consistant à installer une pluralité de conduites (10) de sorte qu'elles soient érigées verticalement à une distance régulière au fond d'un endroit où il y a de l'eau (S110) ;

    la deuxième étape consistant à introduire une tige de forage (20) dans chacune des conduites, afin d'excaver un substratum rocheux (R) au moyen d'un trépan (25) assujetti à une partie d'extrémité de la tige de forage (20) et fixant la tige de forage (20) au substratum rocheux (R) (S120) ;

    la troisième étape consistant à placer et à faire durcir un accélérateur (C) contenant du béton ou du mortier à l'intérieur de chacune des conduites (10) (S130) ;

    la quatrième étape consistant à installer une plaque d'appui (30) que chacune des conduites (10) traverse et supporte et à fixer d'une seule pièce les conduites (10) au fond (S140) ; et caractérisé par

    la cinquième étape consistant à installer une colonne de support (1130) recevant conjointement les conduites (10) de sorte qu'elle soit érigée verticalement et qu'elle soit installée sur la plaque d'appui (30) (S150).


     
    2. Procédé selon la revendication 1, comprenant en outre la sixième étape 6 consistant à placer et à faire durcir un accélérateur (C) contenant du béton ou du mortier dans la colonne de support (1130) (S 160).
     
    3. Procédé selon la revendication 1, comprenant en outre l'étape 6' consistant à fixer une partie inférieure de la colonne de support (1130) à une surface supérieure de la plaque d'appui (30).
     




    Drawing





























    Cited references

    REFERENCES CITED IN THE DESCRIPTION



    This list of references cited by the applicant is for the reader's convenience only. It does not form part of the European patent document. Even though great care has been taken in compiling the references, errors or omissions cannot be excluded and the EPO disclaims all liability in this regard.

    Patent documents cited in the description