KR20180131179A - Caisson for Tidal Current Pwer Generator and Construction Method of the Same - Google Patents

Abstract

Disclosed are a caisson for a tidal current power generator and a construction method thereof. The caisson includes a disc-shaped pre-case (PC) part having an inner space and at least one concrete introducing hole communicating with the inner space; an inner concrete unit formed by introducing concrete into the inner space through the concrete introducing hole; and a cylindrical tower engaged to a center of an upper portion of the PC part, with an upper end being engaged to a turbine of the tidal current power generator. After the PC part is disposed on a seabed, the concrete is disposed in the inner space of the PC part, thereby easily installing the caisson for the tidal current power generator on the seabed. Also, a horizontal level can be easily adjusted by adjusting a height of a hydraulic jack.

Description

Technical Field [0001] The present invention relates to a support structure for a tidal current generator,

The present invention relates to a support structure for an alga power generator and a method of installing the same, and more particularly, to a structure for supporting a tidal current To a power generating support structure and a method of installing the same.

Unlike tidal power generation, where a breakwater is installed on the coast by using a difference in tidal currents, the tidal current generation (tidal current generation) uses currents without the installation of dams and breakwaters in the waters where rapid currents of sea water appear It is a power generation system that turns a turbine installed in the sea.

These tidal currents are considered to be environmentally friendly because they do not require the construction of breakwaters, they are less expensive than tidal power, they do not limit the movement of ships, they do not interfere with the movement of fishes, they do not affect the surrounding ecosystem have.

In such a tidal power generation, a tidal power generation turbine is used in order to obtain energy from the tidal current. Such a tidal power generation turbine includes a nacelle portion corresponding to the body and a propeller- And the like.

On the other hand, the tidal turbine constructed in this way is inevitably large in scale for efficient use of algae, and the installation thereof is very difficult due to the characteristics of the heavy weight and the installation position where the algae should be installed at a fast position There is nothing.

For this reason, a method of installing a tidal power generation turbine on a support structure installed after a support structure is fixedly installed on the seabed is generally used.

On the other hand, the support structure installed on the seabed by such a method has to be very large in weight in order to secure the installation stability, and accordingly, there are various difficulties in installing the weight supporting structure on the seabed come.

Korean Patent No. 10-1098148 (December 16, 2011)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a support structure for algae power generation that can be easily installed on the seabed by placing underwater concrete in the interior of a pre- And the like.

A support structure for an alga power generator according to the present invention comprises: a disc-shaped PC (Pre-Cast) portion having an inner space formed therein and having at least one concrete injection hole communicated with the inner space; An inner concrete part formed by injecting concrete into the inner space through the concrete injection hole; And a tower part having a cylindrical shape coupled to an upper center of the PC (Pre-Cast) part and having a turbine for algae generation coupled to an upper end thereof.

The support structure for an alga power generator according to the present invention is provided with a ring shape along the lower edge of the PC (Pre-Cast) portion, and prevents leakage of concrete of a highly elastic sponge material which prevents the concrete from flowing out from the inner space Member; < / RTI >

The support structure for an alga power generator according to the present invention may further include a barrier mat provided below the inner space to prevent the concrete injected into the inner space from escaping downward.

The support structure for an alga power generator according to the present invention is detachably connected to an outer periphery of the PC (Pre-Cast) portion to adjust the height of the PC (Pre-Cast) And a plurality of hydraulic jacks.

In the support structure for an alga power generator according to the present invention, the PC (Pre-Cast) part may include a plurality of hydraulic jack mounting parts protruding radially outwardly and provided at the lower part so that the plurality of hydraulic jacks are respectively detachable.

In the support structure for an alga power generator according to the present invention, the plurality of hydraulic jack mounting portions each include a mounting channel at the lower end thereof, and the plurality of hydraulic jacks are provided with a rectangular flat plate- .

In the support structure for an alga power generator according to the present invention, the pair of installation wing portions may be provided with a plurality of rollers which are rotatable to facilitate insertion of the slits into the installation channel of the phase.

In the support structure for an alga power generator according to the present invention, the pair of installation channels are bolted to a radially outer end so that the installation wing is not separated from the installation wing in a state where the installation wing is slidingly coupled to the installation channel Preventing bolts.

In the support structure for an alga power generator according to the present invention, the plurality of hydraulic jacks may each include at least one rope connecting ring.

In the support structure for an alga power generator according to the present invention, the plurality of hydraulic jacks can be adjustable in height remotely.

A method of installing a support structure for an alga power generator according to the present invention includes a disk-shaped PC (Pre-Cast) portion having an inner space formed therein and having at least one concrete injection hole communicated with the inner space, A hypothetical installation step of installing a hypothetical structure for underwater concrete pouring onto the upper part of a structure including a tower part provided in a cylindrical shape at the upper center of a PC (Pre-Cast) part; A structure constructing step of constructing the structure having the hypothetical structure for underwater concrete pouring on the seabed; And placing the underwater concrete in the inner space through the concrete injection hole using the hypothetical construction for underwater concrete pouring.

The method for installing a support structure for an alga power generator according to the present invention includes the steps of installing a plurality of hydraulic jacks on the outer side of the PC (Pre-Cast) And a horizontal adjustment step of adjusting the height of the plurality of hydraulic jacks to adjust a horizontal position of the PC (Pre-Cast) part, wherein the hydraulic jack is installed before the structure lowering step, It can be done after the structure landing step.

The method of installing a support structure for an alga power generator according to the present invention may further include a hydraulic jack recovery step of recovering the plurality of hydraulic jacks after the underwater concrete pouring step.

The method for installing a support structure for an alga power generator according to the present invention may further include a temporary demolition step of demolishing the hypothetical structure for underwater concrete pouring after the submerged concrete pouring step.

In the method for installing a support structure for an alga power generator according to the present invention, the step of constructing the structure may be a step of making the structure on the seabed so that the upper end of the hypothetical structure for underwater concrete pouring is raised above the sea level.

According to the support structure for algae power generation and the method for installing the same, the PC (Pre-Cast) portion can be placed on the seabed after the placing of the underwater concrete.

In addition, according to the support structure for alga power generation and the method of installing the same according to the present invention, horizontal adjustment can be easily performed by adjusting the height of the hydraulic jack by adjusting the height of the hydraulic jack.

1 is a perspective view of a support structure for an alga power generator according to an embodiment of the present invention;
2 is a plan view of a support structure for an alga power generator according to an embodiment of the present invention.
3 is a cross-sectional view taken along line A-A 'in Fig.
4 is a schematic side view showing a state in which a hydraulic jack is installed in a hydraulic jack installation portion;
5 is a perspective view for explaining that a hydraulic jack is installed in a hydraulic jack installation portion;
FIG. 6 is a reference view showing that a supporting structure for underwater concrete is installed on a support structure for algae generation. FIG.
FIG. 7 is a flowchart of a method for installing a bird's power generator support structure according to an embodiment of the present invention. FIG.
FIG. 8 to FIG. 14 are reference views for explaining respective steps of a method for installing a bird's power generator support structure according to one embodiment of the present invention;

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventive concept. Other embodiments falling within the scope of the inventive concept may readily be suggested, but are also considered to be within the scope of the invention.

In the following description, the same reference numerals are used to designate the same components in the same reference numerals in the drawings.

FIG. 1 is a perspective view of a support structure 100 for an alga power generator according to an embodiment of the present invention. FIG. 2 is a plan view of a support structure 100 for an alga power generator according to an embodiment of the present invention. Is a cross-sectional view taken along line A-A 'in Fig.

1 to 3, a support structure 100 for an alga power generator according to an embodiment of the present invention includes a substantially disc-shaped PC (Pre-Cast) 110 having an inner space, A plurality of hydraulic jacks 120 provided at an outer portion of a pre-cast portion of the PC, an inner concrete portion 130 formed by injecting concrete into the inner space, A concrete outflow preventing member 150 provided in a ring shape along a lower edge of the PC (pre-cast) portion 110, and a blocking mattress (not shown) provided below the inner space, 160 < / RTI >

The PC (Pre-Cast) unit 110 may constitute the lower appearance of the support structure 100 for the tidal power generator according to an embodiment of the present invention, and the inner space 111 may be provided.

Here, the PC (Pre-Cast) unit 110 is a structure having an internal space 111 and is not relatively heavy in weight, so it is easy to move to the installation point of the support structure for algae generation 100 .

After the PC (Pre-Cast) part 110 is installed at the installation point, the inner space 111 is filled with the inner concrete part 130 generated by underwater concrete pouring. Therefore, The weight is increased enough to stably hold and hold the hull 100 on the seabed.

For this purpose, the PC (pre-cast) unit 110 may have at least one concrete injection hole 112 provided on the upper side so as to communicate with the internal space 111.

That is, after the PC (Pre-Cast) unit 110 is installed at the installation point, the underwater concrete can be injected into the internal space 111 through the concrete injection hole 112.

In addition, the PC (pre-cast) unit 110 may have a worker access port 113 provided on the upper side to communicate with the internal space 111, if necessary, for smooth movement of the worker.

The PC (Pre-Cast) part 110 may be provided in a substantially disc shape, and may have a slope section 114 in which a thickness gradually decreases toward a radially outer side in a predetermined section of a radially outer end .

Accordingly, it is possible to minimize the resistance due to the rapid flow velocity and to stably maintain the support structure for alga power generation 100.

On the other hand, the PC (pre-cast) unit 110 may include a plurality of hydraulic jack mounting portions 115 protruding outward in the radial direction and provided to be detachable from the hydraulic jack 120, Three or four hydraulic jack mounting portions 115 may be provided.

At this time, the lower surface of the hydraulic jack mounting part 115 may be located above the lowermost end surface of the PC (pre-cast) part 110.

4 is a schematic side view showing a state in which the hydraulic jack 120 is installed in the hydraulic jack installation part 115 and FIG. 5 is a reference perspective view for explaining that the hydraulic jack 120 is installed in the hydraulic jack installation part 115.

Referring to FIGS. 4 and 5, the plurality of hydraulic jack mounting portions 115 may include a mounting channel 115a at the lower end thereof.

As shown in FIG. 5, the installation channel 115a may be provided such that bars having an L-shaped cross section face each other.

The hydraulic jack 120 is installed at the lower end of the hydraulic jack installation part 115 by inserting the installation wing part 123 having a rectangular flat plate shape provided at the upper part of the hydraulic jack 120 into the installation channel 115a .

Meanwhile, as shown in FIG. 4, the escape prevention bolt 115b may be fastened to the radially outer end of the installation channel 115a.

The detachment prevention bolt 115b prevents the installation wing portion 123 from escaping from the installation channel 115a in a state where the installation wing portion 123 is inserted into the installation channel 115a, 120 can be prevented from being separated from the hydraulic jack mounting portion 115.

The hydraulic jack 120 includes a cylindrical body portion 121, a height adjusting portion 122 provided below the body portion 121 to be drawn into or drawn out from the body portion 121 by hydraulic pressure, And a mounting wing portion 123 provided at the upper end of the main body 121 in a rectangular flat plate shape.

That is, the hydraulic jack 120 is installed under the plurality of hydraulic jack mounting portions 115, and the height can be adjusted by pulling in or pulling the height adjusting portion 122 by hydraulic pressure, -Cast < / RTI >

As described above, the hydraulic jack 120 can be installed in the hydraulic jack installation part 115 by slidingly inserting the installation wing part 123 into the installation channel 115a. The installation wing part 123 may be provided with a plurality of rollers 123a which are rotatable to facilitate the insertion of the slider.

In addition, the hydraulic jack 120 may include at least one rope connecting ring 121a on the outer circumferential surface of the body 121.

This is for the purpose of recovering the hydraulic jack 120 by connecting the rope to the rope connection ring 121a and pulling the rope after the support structure for algae power generation 100 is completed.

The inner concrete part 130 may be formed by underwater concrete pouring into the inner space 111 through the concrete injection hole 112.

In other words, the inner concrete part 130 may be formed of concrete laid in water after the PC (pre-cast) part 110 moves to the installation point.

Here, in order to form the inner concrete part 130, that is, to pour underwater concrete through the concrete injection hole 112, the hypothetical example 200 for underwater concrete casting can be used.

6 is a reference view showing that a supporting structure for an aquarium power generation 100 is provided with a hypothetical structure 200 for placing concrete underwater.

Referring to FIG. 6, the hypothetical specimen for pouring underwater concrete 200 includes a plurality of concrete injection pipes 210 inserted into the concrete injection holes 112, a plurality of concrete injection pipes 210 interconnecting the injected concrete injection pipes 210, And a truss member 220 having a truss structure.

In the meantime, the hypothetical construction for underwater concrete pouring 200 is performed on the ground before lifting the structure in which the PC (pre-cast) part 110 and the tower part 140 are assembled, -Cast) portion 110, it is possible to improve the workability by lifting it together with water.

In addition, the upper end of the hypothetical specimen 200 for placing underwater concrete can be positioned on the sea surface when the PC (pre-cast) unit 110 is seated on the seabed.

Through this, the concrete can be injected into the inner space 111 of the PC (pre-cast) part 110 through the plurality of concrete injection pipes 210 without underwater operation to form the inner concrete part 130 have.

The tower unit 140 may be coupled to the upper center of the PC (pre-cast) unit 110 to have a columnar shape.

In addition, a turbine (not shown) for tidal power generation may be coupled to the upper portion of the tower unit 140.

Here, the tower part 140 may be lifted together with the PC (pre-cast) part 110 after being combined with the PC (terrestrial) part 110 on the land.

In other words, the PC (Pre-Cast) part 110, the tower part 140, and the hypothetical work for placing the underwater concrete 200 can be lifted in the state of being integrally assembled.

The concrete leakage preventing member 150 may be formed in a ring shape along the lower edge of the PC (pre-cast) portion 110.

Accordingly, the concrete flow-out preventing member 150 can prevent the concrete introduced into the inner space 111 from flowing out to the outside when the concrete is poured into the inner space 111.

At this time, the concrete leakage preventing member 150 may be made of a coarse sponge material to prevent the concrete from flowing out more efficiently.

The blocking mats 160 are provided below the inner space 111 to prevent the concrete injected into the inner space 111 from escaping downward.

As described above, according to the support structure 100 for an alga power generator according to an embodiment of the present invention, after the PC (pre-cast) unit 110 is seated on the sea floor, It is possible to reduce the weight of the structure to be lifted in the water, thereby facilitating transportation and lifting, and can be installed at an accurate position.

In addition, the support structure 100 for a bird's power generator according to an embodiment of the present invention can horizontally adjust the height of the plurality of hydraulic jacks 120, and after the installation is completed, And can be reused.

Hereinafter, a method of installing the alga power generator support structure S100 according to an embodiment of the present invention will be described in detail.

FIG. 7 is a flowchart of a method for installing a tidal power generator supporting structure (S100) according to an embodiment of the present invention, and FIGS. 8 to 14 illustrate a method of installing a tidal power generator supporting structure (S100) according to an embodiment of the present invention. It is a reference diagram for explaining each step.

Referring to FIG. 7, the method for installing the alga power generator support structure S100 according to an embodiment of the present invention includes a provisional installation step S110, a hydraulic jack installation step S120, a structure building step S130, A concrete pouring step S140, a concrete pouring step S150, a temporary pouring step S160, and a hydraulic jack recovering step S170.

The provisional installation step S110 may be a step of installing a hypothetical concrete 200 for placing concrete in a structure in which a PC (Pre-Cast) unit 110 and a tower unit 140 are combined.

9, the concrete injection pipe 210 is inserted into the concrete injection hole 112 provided in the PC (pre-cast) unit 110. In the concrete installation step S110, (200) for placing the underwater concrete in the upper part of the PC (Pre-Cast) part 110 in the form of a metal plate.

At this time, the provisional installation step (S110) may be performed on land or on a work line instead of underwater, thereby improving the workability.

The hydraulic jack installation step S120 may be a step of installing a plurality of hydraulic jacks 120, each of which is adjustable in height, on the outside of the PC (pre-cast)

At this time, as shown in FIG. 10, the hydraulic jack installation step (S120) includes an installation channel 115a provided at the lower end of the hydraulic jack installation part 115 provided in the PC (pre-cast) And installing the plurality of hydraulic jacks 120 in the plurality of hydraulic jack mounting portions 115 by inserting the installation wing portions 123 into the plurality of hydraulic jacks.

In the hydraulic jack installation step S120, after the installation wing portion 123 is inserted into the installation channel 115a, the release bolt 115b is fastened to the radially outer end of the installation channel 115a Thus, it is possible to prevent the hydraulic jack 120 from being disengaged by preventing the inserted installation wing 123 from being disengaged.

The structure building step S130 is a step of placing the PC (Pre-Cast) part 110, the tower part 140, and the structure in which the hypothetical concrete for hatching underwater 200 is coupled, It may be a step of setting.

11, the upper end of the hypothetical specimen 200 for placing underwater concrete is placed in the PC (Pre-Cast) portion (not shown) so as to be positioned above the sea surface 110) to the seabed.

In this way, the operation of injecting the concrete into the concrete injection pipe 210 in the below-described underwater concrete pouring step S150 is performed on the sea surface, thereby improving workability.

On the other hand, the constructing step S130 may be carried out by a crane (not shown).

The horizontal adjustment step S140 may be a step of adjusting the level of the PC (pre-cast) part 110 by adjusting the height of the plurality of hydraulic jacks 120, as shown in FIG. 12 .

That is, the horizontal adjustment step S140 adjusts the height of each of the hydraulic jacks 120 by pulling in or pulling out the height adjusting portions 122 of the plurality of hydraulic jacks 120, (110). ≪ / RTI >

In addition, the horizontal adjustment step (S140) may be a step of remotely adjusting the height of the plurality of hydraulic jacks 120.

Accordingly, there is no need to input a diver or the like for leveling, and workability can be improved remarkably.

The underwater concrete pouring step S150 may be a step of pouring concrete into the inner space 111 of the PC (pre-cast) part 110 to form the inner concrete part 130.

More specifically, as shown in FIG. 13, the concrete pouring step (S150) includes pouring concrete through a concrete pouring pipe 210 provided in the hypothetical pouring concrete for pouring underwater concrete 200, So that the inner concrete part 130 is formed by being injected into the inner space 111 through the concrete injection hole 112.

The temporary removal step S160 may be a step of removing the hypothetical construction 200 for placing the underwater concrete as shown in FIG.

In other words, the hypothetical demolition step S160 may be a step of separating the hypothetical specimen for placing underwater concrete 200 from the PC (pre-cast)

The hydraulic jack recovery step S170 may be a step of recovering a plurality of hydraulic jacks 120 provided in the plurality of hydraulic jack mounting portions 115, respectively.

15, the hydraulic jack recovery step S170 may include a step of connecting the rope R to the rope connecting ring 121a provided on the body 121 of the hydraulic jack 120, So that the installation wing 123 slides from the installation channel 115a and is released, thereby recovering the hydraulic jack 120.

As described above, according to the method (S100) for installing a support structure for algae generation according to an embodiment of the present invention, after the PC (Pre-Cast) unit 110 is seated on the sea floor, The weight of the structure lifted in the water can be reduced, so that the transportation and lifting of the water can be facilitated and the concrete concrete part 130 can be installed in a precise position.

Further, since the concrete injection operation is performed above the sea level by using the hypothetical structure 200 for placing underwater concrete, workability can be improved.

In addition, according to the method (S100) for installing a support structure for an alga power generator according to an embodiment of the present invention, it is possible to horizontally adjust the height of the plurality of hydraulic jacks 120, ) Can be recovered and reused.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the present invention is not limited to the disclosed exemplary embodiments, but various changes and modifications may be made without departing from the scope of the invention. And will be apparent to those skilled in the art.

100: Support structure for alga power generator according to one embodiment of the present invention
110: PC (pre-cast) unit 111: inner space
112: concrete injection hole 114: slope section
115: Hydraulic jack installation part 115a: Installation channel
120: Hydraulic jack 121: Body part
121a: rope connecting ring 122: height adjusting portion
123: installation wing portion 123a: roller
130: inner concrete part 140: tower part
150: concrete leakage preventing member 160: blocking mats
200: Hollow for concrete underwater 210: Concrete injection pipe
220: truss member
S100: Method of installing a support structure for an alga power generator according to an embodiment of the present invention
S110: Provisional installation step S120: Hydraulic jack installation step
S130: Structuring step S140: Leveling step
S150: concrete pouring step S160: temporary pouring step
S170: Hydraulic jack recovery step

Claims (15)

A PC (Pre-Cast) portion having an inner space formed therein and having at least one concrete injection hole communicated with the inner space on an upper side thereof;
An inner concrete part formed by injecting concrete into the inner space through the concrete injection hole; And
And a tower portion having a cylindrical shape coupled to an upper center of the PC (Pre-Cast) portion and having a turbine for algae generation coupled to an upper end thereof.
The method according to claim 1,
And a concrete spill preventing member made of a high-elasticity sponge that is provided in a ring shape along a lower edge of the PC (Pre-Cast) portion to prevent the concrete from flowing out from the inner space. Supporting structures for devices.
The method according to claim 1,
And a barrier mat provided below the inner space to prevent the concrete injected into the inner space from escaping downward.
The method according to claim 1,
And a plurality of hydraulic jacks connected to the outer circumference of the PC (Pre-Cast) portion so as to be detachable so as to be horizontally adjustable in the PC (Pre-Cast) portion by adjusting the height of each of the hydraulic jacks Support structures for algae generators.
5. The method of claim 4,
Wherein the PC (Pre-Cast) portion includes a plurality of hydraulic jack mounting portions protruding outward in the radial direction so that the plurality of hydraulic jacks are detachably attached to a lower portion thereof.
6. The method of claim 5,
Wherein the plurality of hydraulic jack mounting portions each have a mounting channel at a lower end thereof,
Wherein the plurality of hydraulic jacks each have a rectangular flat plate-shaped mounting wing portion slidably inserted into the installation channel at an upper end thereof.
The method according to claim 6,
Wherein the pair of installation wing portions are provided with a plurality of rollers that are rotatable to facilitate insertion of the slits into the installation channels of the phase.
The method according to claim 6,
And the pair of installation channels include bolts for preventing the installation wings from being detached in a state where the installation wings are fastened to the radially outer ends in the form of bolts and the installation wings are slidably coupled to the installation channels. Support structures for algae power generation.
5. The method of claim 4,
Wherein the plurality of hydraulic jacks each include at least one rope connecting ring.
5. The method of claim 4,
Wherein the plurality of hydraulic jacks are adjustable in height and height remotely.
A PC (Pre-Cast) portion having an inner space formed therein and having at least one concrete injection hole communicated with the inner space on the upper side, and a cylindrical A step of installing a hypothetical structure for underwater concrete pouring on the upper side of the structure including the tower part;
A structure constructing step of constructing the structure having the hypothetical structure for underwater concrete pouring on the seabed; And
And placing the underwater concrete in the inner space through the concrete injection hole using the hypothetical construction for underwater concrete pouring.
12. The method of claim 11,
A hydraulic jack mounting step of installing a plurality of hydraulic jacks on the outer side of the PC (Pre-Cast) portion, the height of which can be adjusted respectively; And
And adjusting a height of the plurality of hydraulic jacks to adjust a level of the PC (Pre-Cast) portion,
Wherein the step of installing the hydraulic jack is performed before the step of mounting the structure,
Wherein the leveling step is performed after the structure building step.
13. The method of claim 12,
Further comprising a hydraulic jack recovery step of recovering the plurality of hydraulic jacks after the underwater concrete pouring step.
12. The method of claim 11,
Further comprising the step of removing the hypothetical structure for underwater concrete pouring after the step of pouring the underwater concrete.
12. The method of claim 11,
Wherein the substructure assembling step is a step of making the structure on the seabed so that the upper end of the hypothetical structure for underwater concrete piling is raised above the sea level.

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