KR101529252B1 - Submerged breakwater block with the function of artificial fish-reef - Google Patents

Abstract

The present invention relates to a submerged breakwater block capable of preventing the erosion and sand loss of the seashore. The front and rear surfaces (10, 20) of the block are an arc curved surface recessed inward in a vertical direction while the upper part of the curved surface obliquely heads to seabed, and the lower part of the curved surface obliquely heads to the sea surface. One or more independent seawater flowing holes (11, 21) are penetrated from the front and rear surface (10, 20) of the block to the top surface (30) of the block. A rope groove (31) in which a nursery rope is inserted is formed on the top surface (30) of the block. A coupling protrusion (50a) is formed on one among the left and right surfaces of the block, and a coupled groove (50b) in which the coupling protrusion (50a) is inserted is formed on the other surface thereof. A subsidence prevention protrusion (60) to control the insertion degree of the coupling protrusion (50a) is formed in the lower part of the coupling protrusion (50a).

Description

Submerged breakwater block with the function of artificial fish-reef}

The present invention relates to a coastal structure for preventing coastal erosion and sand loss, and more particularly, to a coastal structure for preventing seawater exchange, To prevent the environment from being hindered and to actively improve the environment by improving the environment.

The supply of the river sediment to the coast is decreasing due to the continuous construction of the river structure and the irregular collection of the aggregate. On the other hand, due to the environmental change such as global warming, the frequency of invasion of the large typhoon, And coastal erosion is serious, and coastal erosion causes damage to the natural environment as well as disaster that collapses the hinterland.

In order to protect such a hinterland, a high breakwater is built or a sofa block is built up high. However, a breakwater such as a breakwater or a sofa block protruding above the sea surface is a factor that hinders the external view to the coastline, .

Recently, a study on the submerged structure which can prevent the erosion of the coast by preventing sand loss without affecting the landscape has been continuously carried out.

1 is a 'fractional coastal submergence structure' disclosed in Patent Publication No. 10-1145257, which includes a rectangular parallelepiped-shaped submerged body, and the submerged body is designed to firstly attenuate the horizontal wave passing over the corresponding body (110c, 130) protruded so as to form a sofa slot (150) between the front and rear of the upper portion of the main body And a vertical conversion waveguide passage (170) vertically extending outside the column (130) and guiding wave to the outside along these paths, wherein a peripheral portion of the vertical conversion waveguide passage (170) in the front side of the submerged body The wave is curved so that it is easy to obtain.

In the 'fractional-type coastal submerged structure', the wave received in the front portion is guided in the vertical direction using the vertical conversion waveguide passage 170 to blow out the wave passing horizontally through the upper portion of the submerged body, Thereby canceling the horizontal flow.

However, the above-mentioned 'fractional coastal submerged structure' has problems such as poor efficiency of wave crushing in the following points.

I) Although the front part is curved so as to facilitate entry of wave into the inflow part 170a on the front surface of the submerged structure according to the related art, the curved front part is formed with the horizontal extension part 170 in the submerged body. The wave received through the inlet portion 170a is not rapidly changed to the outlet 170c formed at a right angle after passing through the horizontal extending portion 170b so that the outlet portion 170c ), The water pressure ejected in the vertical direction becomes very weak, so that the horizontal flow of the wave can not be effectively canceled out.

Ii) As shown in FIG. 1 (b), a plurality of tetra-ports are installed at the front and rear sides of the submerged structure in order to support the prior art submerged structure, So that the increase in cost can not be avoided.

Iii) In the prior art, there is no consideration of return flow at all, and when they are spaced apart, there is a loss of sand due to the return flow in the space, In the case of continuous installation without separating the seawater, there is a problem in that the exchange of the seawater is not convenient and the seawater on the coast side may be contaminated.

Iv) Although the self-weight of the submerged structure according to the prior art is very large, there is no consideration of settlement of the submerged structure due to the local cave which can lose its function.

KR 10-1145257 B1 KR 10-1266152 B1

The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide a submerged structure capable of preventing the erosion of the coast by lowering the wave propagated to the coast by effectively reducing the wave energy of the cross- The present invention has been made in view of the above problems.

Another object of the present invention is to provide a submerged block in which seawater exchange can be facilitated by facilitating recirculation, thereby preventing marine pollution and preventing loss of sand.

Another object of the present invention is to provide a submerged block in which the function of the submerged structure can be continuously maintained by having a stable structure in which the submerged structure can be prevented from sinking.

Another object of the present invention is to provide a submerged block capable of contributing to the maintenance and restoration of a marine ecosystem as well as reducing the flow rate of the sea ice by making it possible to form a sea bed

According to a most preferred embodiment of the present invention for solving the above problems, each of the front and rear surfaces of the block for constructing the submerged structure has an arc-shaped curved surface concaved inward with respect to the vertical direction, and the upper portion of the curved surface is inclined One or more independent seawater flow holes penetrating from the front and rear surfaces of the block to the upper surface of the block are formed while facing the seabed and the lower portion of the curved surface facing the sea surface obliquely; A rope groove for inserting the seedling rope is formed on the upper surface of the block; The damper block is provided with an engaging protrusion protruding along the longitudinal direction at the center of one side of the engaging block and a relief preventing protrusion protruding along the width direction at the lowermost part of one surface of the engaging block having the engaging protrusion formed thereon, A coupling groove having a shape corresponding to a coupling protrusion of the block and a sinking prevention protrusion and a sinking prevention groove are provided; And an upper end surface of the coupling protrusion and the coupling groove is inclined downward from the upper surface of the block so that the coupling protrusion and the coupling groove are engaged with each other, Lt; RTI ID = 0.0 > a < / RTI >

According to another embodiment of the present invention, the inflow hole provided on the front and rear surfaces of the seawater circulation public block is formed so as to be inclined upward in the block, and the discharge hole provided on the upper side of the block while communicating with the inflow hole, The inflow hole formed on the front side of the block located on the far side is located on the upper side of the curved surface and the inflow hole formed on the rear side of the block located on the coast side is located below the inflow hole of the front side A submerged block having a feature of the reverberation function is provided.

According to another embodiment of the present invention, the engaging projection and the engaging groove are formed in an inverted trapezoidal shape after the electro-optical convergence.

According to another embodiment of the present invention, the cross-section of the engaging projection may be formed to be smaller than the cross-section of the engaging groove so that the engaging projection may be pivoted in the left-right direction while being inserted into the engaging groove. / RTI >

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According to another embodiment of the present invention, there is provided a submerged block having a fish-playing function, characterized in that protruding jaws are formed on each rim of the block bottom surface to form a closed space together with the bottom surface.

The present invention can prevent the erosion of the coast by crushing the wave of the oceanic wave that invades the coast, and effectively prevent the loss of the sand on the coast due to the reversion, and also the seawater can be smoothly exchanged and the sea water To prevent contamination and to maintain and restore the environment.

In addition, the present invention simplifies installation and construction of a submerged structure to reduce construction costs, and also improves durability and minimizes maintenance costs since it is structurally stable and does not easily sink.

1 is a perspective view and a use state view of a conventional damper structure.
2 is a perspective view showing an example of construction of a submerged structure using a submerged block according to an embodiment of the present invention.
3 is a perspective view and a cross-sectional view of a submerged block according to an embodiment of the present invention.
4 is a conceptual diagram for explaining an operation relationship of the forced wave breaking and the sand loss prevention of incident wave by the submerged block according to the present invention.
FIG. 5 is a cross-sectional view illustrating various embodiments of the seawater circulation hole provided in the submerged block of the present invention.
6 is a cross-sectional view illustrating one embodiment of the engaging means of the submerged block of the present invention.
7 and 8 are a perspective view and a cross-sectional view of a submerged block according to another embodiment of the present invention in which the coupling means is modified to form a seawater communication channel.
9 is a perspective view showing an example in which a submerged block of the present invention is provided with a projecting step on its bottom face.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in order to obscure or obscure the technical idea of the present invention due to the detailed description of the known structure in describing the present invention, the description of the structure of the above known structure will be omitted.

FIG. 2 is a perspective view showing an example in which a submerged structure S is applied using a submerged block B according to an embodiment of the present invention, FIG. 3 is a view showing the submerged block B as a whole, (B) is a perspective view seen from the other side of the block, and (c) is a cross-sectional view of a block for showing the shape of the seawater flow holes 11 and 21. FIG.

As shown in FIG. 3, the submerged block B according to the present invention has an arc-shaped curved surface inwardly and rearwardly recessed inwardly in the up-and-down direction so that the upper portion of the curved surface is directed obliquely to the sea floor The bottom of the curved surface is configured to face the sea level at an angle.

The front and rear surfaces 10 and 20 of the block having such a concavely arcuate curved surface are viewed from the distance or the coast. The arcuate curved surface of the block located on the far side forms an upward vortex so as to pass through the upper part of the submerged structure S, And the incident wave can be easily introduced into the seawater circulation hole 11 provided on the far side surface (hereinafter referred to as 'front side') to be described later, so that the incident wave To serve as another means for forced breaking.

In addition, the arc-shaped curved surface of the block located on the coastal side also forms an upward vortex so that the sand trapped by the seawater is prevented from being lost to the opposite side of the submerged structure (S), that is, to the far side, (Hereinafter referred to as the "rear surface") of the water surface (the rear surface). This is explained in detail later.

Accordingly, the curvatures of the curved surfaces formed on the front and rear surfaces 10 and 20 of the block may be different from each other. In other words, while the block 20 is not intended to obstruct the flow of backward flow, the front face 10 of the block is intended to reduce the flow rate of the flow of the core flow, so that the curvature of the upper and lower portions may be changed to constitute a strong vortex have.

Fig. 4 schematically illustrates an operation in which the incident wave is forcibly broken and the loss of sand on the coast is prevented by the shape of the concave curved front and rear faces 10 and 20 as described above.

In each of the front and rear faces 10 and 20 having arc-shaped curved surfaces as described above, one or more independent sea water flow holes 11 and 21 penetrating through the block upper surface 30 are provided.

5 is a cross-sectional view illustrating various embodiments of the seawater circulation holes 11 and 21 provided in the submerged block (B) of the present invention.

The seawater circulation holes 11 and 21 are formed with inlet holes 11a and 21a on the front surface 10 or the rear surface 20 of the block, respectively, as shown in FIG. 3 (c) The discharge holes 11b and 21b communicated with the inflow holes 11a and 21a do not differ from each other in that the discharge holes 11b and 21b are vertically formed in the block toward the upper side 30 of the block.

The seawater circulation hole 11 formed in the front surface 10 of the block is intended to provide the forced wave breaking of the incident wave as well as the action of the concave curved surface of the front surface 10, The formed seawater circulation hole (21) enables smooth exchange of seawater.

That is, the seawater circulation hole 11 of the block front surface 10 allows the seawater introduced therefrom to be blown upward through the discharge hole 11b of the upper surface 30 of the block, And the seawater circulation hole 21 of the block rear surface 20 inflow seawater on the bottom surface of the clogged flow by the submerged structure S so as to return to the top of the submerged structure S, Along with the flow, to the far sea.

Therefore, the seawater circulation holes 11 and 21 may be formed in the same shape as shown in FIG. 3 (c), but in order to efficiently perform each function, (10) and the rear face (20) as shown in Fig. 2 (b).

5 (a) and 5 (b), it is preferable that the inflow holes 11a and 21a into which the seawater flows are inclined upwards so that the inflow of seawater is performed well. The positions of the inflow holes 11a and 21a and the verticality of the discharge holes 11b and 21b and the length of the discharge holes 11b and 21b may be configured according to respective functions.

For example, in the case of the seawater circulation hole 11 of the block front surface 10 for interrupting the flow of the aromatic flow, the discharge hole 11b may be formed vertically or vertically, or in a direction opposite to the flow of the aromatic flow, And the length of the seawater circulation hole 11 can be shortened by positioning the inflow hole 11a at the upper part of the curved surface so that the water pressure blown up through the discharge hole 11b is largely generated.

Since the inflow hole 11a, which is located above the curved surface and is inclined upward, has a passage in a direction similar to that of the vortex and has a shorter passage length, the water pressure of the seawater discharged from the discharge hole 11b is weakened So that it can be minimized.

On the other hand, in the case of the sea water flow hole 21 of the block rear surface 20, the seawater on the seabed surface is mixed with the seawater on the upper surface of the submerged structure S, The discharge hole 21b formed in the upper and lower parts inside the block may be inclined slightly toward the far side so that the sand swept along with the seawater through the inflow hole 21a can be lowered again by its own weight, the inflow hole 21a is positioned below the inflow hole 11a of the block front surface 10 as shown in Fig. 5B so that the length of the seawater flow hole 21, especially the length of the discharge hole 21b (l) can be made longer.

On the other hand, the vortex generated by the concave arcuate curved surfaces of the block front and rear faces 10, 20 floats the nutrients and the like accumulated on the sea floor, so that the upper surface 30 makes a good habitat environment such as seaweed. When seaweeds and the like are present on the upper surface 30 of the block, these seaweeds exhibit the effect of reducing the wave energy of the aromatic flow.

Therefore, the submerged block (B) of the present invention is configured so as to serve also as a function of an assortment capable of forming a sea bed. For this purpose, a rope groove 31 is formed in the upper surface 30 of the block in which the seedling rope is inserted so that a seedling rope in which a fluid such as seaweed is previously mixed can be installed.

The seedling rope inserted into the rope groove 31 can be easily fixed to the block using a takafune or the like.

A plurality of subbing blocks (B) according to the present invention are connected to form one submerged structure (S). To this end, coupling means (50) are provided which can have a stable connection structure by only fitting on the left and right sides of the block.

The engaging means 50 includes an engaging projection 50a formed on one side of the left and right sides of the block and an engaging groove 50b formed on the other side of the block to receive the engaging projection 50a of the adjacent engaging block B.

The engaging projections 50a and the engaging grooves 50b are formed in an inverted trapezoidal shape after forwarding so that they can not be easily separated by an external force after they are fitted to each other. Therefore, no fastening means such as bolts for structurally connecting the adjacent submerged blocks B are required, and only the engaging protrusions 50a are inserted into the engaging grooves 50b while moving the submerged block B downward So that the construction is very simple and stable.

The cross section of the engaging projection 50a and the engaging recess 50b may have the same shape and size, but it is preferable that the cross section of the engaging projection 50a is formed in the same direction as that of the engaging recess 50b Section so that the engaging projection 50a can be pivoted laterally in a state of being inserted into the engaging groove 50b.

The structure in which the engaging protrusion 50a inserted in the engaging groove 50b is rotatable in the right and left direction can cope with the irregular shape of the shoreline and the sea bottom surface appropriately so that the versatility of the submerged block B according to the present invention can be improved Greatly increase.

The submerged block (B) according to the present invention is one of important technical features that the submerging preventing chin (60) is further provided below the engaging projection (50a).

Local scour can be generated around some of the submerged block (B) due to the self weight of the submerged structure (S) and the flow of seawater. Such local scour disrupts the entire structure while sinking or buried the submerged block (B) The sinking block 60 limits the extent to which the engaging protrusion 50a is inserted into the engaging groove 50b of the adjacent submerged block B so that the submerged block B can be inserted into the submerged block B, So that they are structurally stable.
More specifically, as shown in FIG. 3, an engaging projection 50a is formed at the center of one side of the submerged block B along the longitudinal direction, The bottom surface of the submerged block B is provided with a submerging protrusion 60 protruding from the bottom of the bottom surface of the submerged block B at the bottom of the submerged block B, The engaging groove 50b having the corresponding shape and the subsidence preventing groove (not shown in the drawing) are provided so that the engaging projection 50a of the one side submerged block B is fitted into the engaging groove 50b of the other side submerged block B The submerging preventing tongues 60 of the one submerged block B and the submerging preventing grooves of the other submerged block B are engaged with each other and the other submerged block B can not be individually submerged.

Fig. 7 shows another embodiment of the submerged block (B) according to the present invention. 7, the upper end surfaces 51a and 51b of the engaging projection 50a and the engaging recess 50b, which are the engaging means 50 connecting the subbing blocks B, And is spaced apart from the upper surface 30 of the block by a predetermined distance. Therefore, when the engaging protrusion 50a having the upward inclined engaging upper surfaces 51a and 51b and the engaging groove 50b are engaged, the inclined water communication passage 70 is formed at the upper portion of the engaging portion.

7 (c) is a cross-sectional view of the submerged structure S taken along the longitudinal direction to show the sea water communication passage 70 described above.

The seawater communication passage 70 smoothly exchanges the seawater with the seawater circulation hole 21 of the block rear surface 20 described above and returns to the lower Prevent contamination of seawater located.

In addition, the configuration in which the lower surface of the sea water communication passage 70 is inclined upwards toward the far side prevents the loss of sand on the coast by the return flow. In order to enhance the effect of preventing the sand leakage, a sand plate 71 protruding upward as shown in FIG. 8 is further provided at the end of the sea water communication passage 70, that is, at the far end of the coupling groove 50b .

On the other hand, the sand movement under the submerged structure (S) acts as another factor of settlement or deformation of the submerged structure (S). Therefore, as shown in FIG. 9, the submerged block B according to another embodiment of the present invention has a protruding step 41 formed on each edge of the bottom surface 40 to form a closed space together with the bottom surface And the closed space prevents the sand in the lower portion of the submerged block (B) from moving, so that the submerging structure (S) can not easily sink.

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 invention is not limited to the disclosed embodiments, but, on the contrary, It is obvious that it will be possible to carry out various modifications thereof. It is therefore intended that such modifications are within the scope of the invention as set forth in the claims.

10; Block fronts 11 and 21; Seawater distributor
11a, 21a; The inflow holes 11b and 21b; Discharge hole
20; Block rear surface 30; Block top surface
31; Rope grooves 40; Block bottom
41; Protruding chin 50; Coupling means
50a; Engaging projections 50b; Coupling groove
51a, 51b; A mating top surface 60; Sink
70; Sea water communication channel 71; Sand board
S; Submerged structure B; Submerged block

Claims (7)

In the submerged block (B) for construction of the submerged structure (S)
Each of the front and rear faces 10 and 20 of the block has an arcuate curved surface concaved inward with respect to the vertical direction so that the upper portion of the curved surface is obliquely directed to the sea floor and the lower portion of the curved surface is directed obliquely to the sea level, At least one independent sea water flow hole (11, 21) penetrating from the front and rear faces (10, 20) to the block upper face (30)
The block top surface 30 is formed with a rope groove 31 into which a seedling rope is inserted,
A coupling protrusion 50a protruding from the central portion of one side of the submerged block B along the lengthwise direction and a protrusion 50b protruding from the bottom of the submerged block B having the coupling protrusion 50a formed along the width direction A coupling groove 50b having a shape corresponding to the coupling projection 50a of the adjacent submerged block B and the submerging preventing chin 60 and a coupling groove 50b having a shape corresponding to the submerging preventing chin 60 are formed on the other surface of the submerging block B, ; The engaging upper surfaces 51a and 51b of the engaging protrusions 50a and the engaging grooves 50b are spaced downward from the block upper surface 30 with a shape inclined upwards toward the far side so that the engaging protrusions 50a, (70) is formed at an upper portion of the joint portion when the joint portion (50b) is fastened. The water treatment system according to claim 1, wherein the inflow holes (11a, 21a) provided in the block front and rear faces (10, 20) of the seawater flow holes (11, 21) are formed to be inclined upward in the block, The discharge holes 11b and 21b provided in the block upper surface 30 are formed vertically to the block upper surface 30 in the block and are formed in the block front surface 10 located at the far side, Characterized in that the inflow hole (21a) formed on the rear surface (20) of the block located on the coast side is located below the inflow hole (11a) of the front surface (10) Submerged block with function. 2. The submerged block according to claim 1, wherein the engaging projection (50a) and the engaging groove (50b) are formed in an inverted trapezoidal shape after forwarding. The connector according to claim 3, wherein the cross-section of the engaging projection (50a) is smaller than the cross-section of the engaging groove (50b) so that the engaging projection (50a) A submerged block with a reverb function. delete The submerged block according to claim 1, further comprising a sand plate (71) protruding upward from the far end of the coupling groove (50b). 2. The submerged block according to claim 1, wherein a protruding step (41) is formed on each edge of the block bottom surface (40) to form a closed space together with the bottom surface.

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