KR101156791B1 - Combined artificial reef and coastalc erosion protection submerged breakwater block and construction method using the same - Google Patents

Abstract

PURPOSE: A submerged block having an artificial fish bank function for preventing coastal erosion and a construction method using the same are provided to reduce waves by dispersing the direction of seawater flowing into the submerged block and reflecting the dispersed direction backward. CONSTITUTION: A submerged block having an artificial fish bank function for preventing coastal erosion comprises a box-shaped block body(12), lower front and rear block wings(14A,14B), an upper front block wing(14C), an upper hanging protrusion(16), a wedge coupling piece, and a block hanging protrusion(19). The lower front and rear block wings and the upper front block wing are located at the bottom and the corners of the front of the block body. The upper hanging protrusion is formed on one side of the top of the block body and has an upper wedge groove. The wedge coupling piece has a shape corresponding to the upper wedge groove.

Description

Combination artificial reef and coastal erosion protection submerged breakwater block and construction method using the same}

The present invention relates to a submerged block for preventing sand erosion of the coast, and more particularly, to a submerged block for preventing coastal erosion combined with artificial reefs to strengthen the coupling between the submerged blocks stacked in the height direction to stably resist wave energy. will be.

In the deeper coastal areas, disturbances in the direction of coastal flows by coastal facilities such as harbors and muzzles and coastal erosion caused by swelling waves are increasing, causing anxiety to local residents. Recently, the coastal erosion problem is expected to result in a continuous phenomenon of sea level rise due to global warming along with nervodal waves, and it is urgent to prepare a damage avoidance plan. Existing measures to rectify coastal flows using breakwaters are insufficient as measures to prevent damage to sea level rise, and new alternatives are needed.

In particular, coastal erosion is more likely in the case of sandy shoreline, and various facilities such as roads, retaining walls, and multi-family homes are located close to the shoreline, causing disruption of breaking waves and disconnection of sand.

Accordingly, measures should be taken to prevent coastal erosion by mitigating the flow of coastal streams and attenuating aquatic waves.

As a background technology of the present invention, Korean Patent Publication No. 10-2011-0049984 proposes a coastal erosion prevention block through wave attenuation. It is inclined toward the rear in a predetermined section from the front end region of the block to the other end inclined surface for guiding the wave coming; From the point where the inclined surface ends, the first arc of a constant depth toward the inside in the other end region section of the block and the first inclined wall from the first arc toward the upper side attenuate the kinetic energy of the rising and returning wave At least one wave attenuating portion; Carbon fiber and aramid fiber fixed to a predetermined thickness on the inclined surface and the surface of the wave damping portion including the first inclined wall to prevent the inclined surface, the first inclined wall and the surface of the wave damping portion from being damaged by waves; It is characterized in that the surface hardness of any one selected from the glass fiber reinforced layer.

However, the background art is installed on the retaining wall of the coast can prevent the erosion of the retaining wall, but there is a problem that the sand of the shore is taken out because it can not directly attenuate the nervous waves.

The sand block prevention block proposed as Korean Patent No. 10-1011020 (Registration date 2011.01.19) is a pair of narrow widths in a sand block prevention block for preventing sand loss. A bottom plate portion having a rectangular plate shape having a first side and a second side surface wider than the first side and vertically disposed with respect to the first side, and spaced apart from the bottom portion and disposed above. A rectangular plate having a top plate portion in the form of a rectangular plate that includes a third side surface corresponding to the plate portion and a fourth side surface corresponding to the first side surface, and a pair of side plate portions connecting the bottom portion and the top surface portion. Cylindrical body portion; A pair of supporting members extending downward along both edges of the bottom plate; A catching member extending upward along one side edge of the upper plate portion to filter sand in the current flowing from the shore; Blocking member for closing both sides of the body portion; And a filling member filled in the body part and including gravel or sandstone. However, Patent Literature 1 fails to secure the fixing force of the upper locking block when it is constructed by stacking the locking block in the height direction so that the position is shifted to the wave impact or the posture is twisted, resulting in poor construction stability. There is a problem that concerns are brought out.

Therefore, the present invention was devised in view of the above circumstances, and the strengthening of the binding force between the latent blocks is to stably resist the swelling waves, effectively attenuates the blue energy, and artificial fish that allows the habitat of the fish to occur naturally. It is an object of the present invention to provide a submerged coastal erosion prevention block and a construction method using the same.

Suitable embodiment of the artificial reef combined coastal erosion prevention block according to the present invention has a hollow penetrating in the width direction, the bottom portion located on the lower side of the hollow, the front portion placed on one side of the bottom portion, the other side of the bottom portion A box-shaped block body formed of a rear part facing the front part and positioned above the bottom part and facing each other;

A lower front block wing, a lower rear block wing, and an upper front block wing which are located at corners of the bottom and front of the block body and protrude and extend;

An upper locking piece having an upper wedge groove on one side of an upper surface of the block body;

A wedge engaging piece having the same shape as protruding downward from the bottom of the bottom of the block body and corresponding to the upper wedge groove;

And a block locking jaw formed at a portion where an inner surface of the lower rear block blade meets a bottom surface of the bottom portion.

In addition, the front portion is characterized in that the unitary vortex curved surface is formed to distribute the inflow of the current flowing into the coast from the sea side up and down.

In addition, the front portion is characterized in that the upper vortex curved surface and the lower vortex curved surface forming a vertical symmetry in order to disperse the inflow of the current flowing into the coast from the sea side up and down.

In addition, the upper surface portion is characterized in that the through hole is further formed in communication with the hollow.

In addition, the upper surface portion is characterized by having a pair of male and female recessed grooves and recessed projections having contours of the same shape on both end surfaces in the width direction.

In addition, the front portion is characterized in that the one or more current inflow hole is further formed to introduce the current flowing into the hollow.

In the construction method using the artificial reef combined coastal erosion prevention block according to the present invention, the artificial reef combined coastal erosion prevention submerged block is disposed so that the front part faces the sea side and is disposed adjacent to the sea side of the coast in the width direction and the width direction. However, the latent block layer is constructed;

Stacking the second block or more of the potential block layers in consideration of the height of the installed sea surface by arranging the same artificial reef combined coastal erosion prevention block on the upper portion of the first layer of the potential block layer;

At the forefront side of each stage of the interlocking block layer, an artificial reef combined coastal erosion prevention interlocking block having an ocean current inlet is disposed, but the current inlet is directed toward the sea side.

According to the artificial reef combined coastal erosion prevention block and the construction method using the same of the present invention, through the wedge-type binding structure and the locking step support structure, it is stably resistant to nuisance waves. In addition, the wave direction can be attenuated by dispersing the direction of the current flowing into the area of the latent block through the vortex curved surface and reflecting it in the reverse direction. In addition, the current flow hole is formed at the foremost side in the area where the latent block is constructed, and the inflow flow of the current flows into the hollow and then guides in the other direction to reduce the direct impact, thereby providing excellent safety after construction.

The following drawings, which are attached in this specification, illustrate the preferred embodiments of the present invention, and together with the detailed description thereof, serve to further understand the technical spirit of the present invention. It should not be construed as limited.
Figure 1a is a perspective view of the artificial reef combined coastal erosion prevention block according to the present invention.
FIG. 1B is a bottom perspective view of FIG. 1A; FIG.
1C is a cross-sectional view taken along the line AA of FIG. 1A.
2 is a side cross-sectional view according to a modification of FIG. 1A.
FIG. 3 is an exploded perspective view illustrating two up-and-down coupling states of the latent block of FIG. 1A; FIG.
FIG. 4 is a view illustrating a bonding state in which the interlocking blocks of FIG. 1A are stacked up and down. FIG.
5 is a view showing a state in which the locking block shown in Figure 1a coupled in the width direction.
Figure 6 is a construction state of the artificial reef combined coastal erosion prevention block according to the invention.
Figure 7a is a perspective view of the artificial reef combined coastal erosion prevention block according to the present invention.
FIG. 7B is a cross-sectional view taken along line BB of FIG. 7A. FIG.

In the following the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the embodiments presented are exemplary for a clear understanding of the present invention is not limited thereto.

The erosion and coastal erosion prevention block (hereinafter referred to as a "locking block") 10 shown in FIGS. 1A to 7B according to the present embodiment may be made of concrete using, for example, formwork.

The interlocking block 10 illustrated in FIGS. 1A to 1C has a hollow 121 penetrating in the width direction, and is located at a bottom portion 122 and a bottom portion 122 positioned at a lower side of the hollow 121. The front part 123, which is placed on the other side of the bottom part 122, is placed on the rear part 124 facing the front part 123, and the upper part 125 which is located above the bottom part 122 and faces each other. A box-shaped block body 12 is provided.

In the present embodiment, the hollow 121 has a rectangular cross section, but may be configured in a circle, oval shape, and the like, but is not necessarily limited thereto. The hollow 121 may be optionally filled with rock, gravel, sandstone, etc. for the purpose of increasing the weight of the submerged block 10.

The block body 12 is further provided with a lower front block wing 14A, a lower rear block wing 14B and an upper front block wing 14C. These lower front block blades 14A, lower rear block blades 14B, and upper front block blades 14C are located at the corners of the bottom portion 122 and the front portion 123 of the block body 12, and protrude and extend. have. The lower front block wing 14A and the lower rear block wing 14B enter the sea floor when the lock block 10 is located at the bottom layer to stabilize the installation position of the lock block 10. In addition, when the lock block 10 is stacked in the height direction as shown in FIG. 4, the lower front block blade 14A and the lower rear block blade 14B are attached onto the lower lock block 10.

One side of the upper surface portion 125 of the block body 12 is further provided with an upper engaging piece 16 having an upper wedge groove 161. The upper catching piece 16 is located on the rear side of the upper front block blade 14C. At this time, the upper engaging piece 16 is composed of a pair facing each other with the upper wedge groove 161 in the center on a straight line. The upper wedge groove 161 serves to prevent the locking block 10 of the upper portion from being pushed backward by the force of seawater that is pushed from the sea side to the land side when the locking block 10 is stacked in two stages, as shown in FIG. 4. Do it. To this end, the upper wedge groove 161 has a form in which the width of the front is gradually narrowed to the rear. Therefore, the side wall of the upper wedge groove 161 is formed to be inclined. In the present embodiment, the upper wedge groove 161 is configured as a single type, but the number thereof may be increased in the width direction according to the width length of the block body 12.

The bottom surface 122 of the block body 12 has a wedge coupling piece 18 having the same shape as protruding downward and corresponding to the upper wedge groove 161. In the present embodiment, the wedge coupling piece 18 forms the same trapezoid as the upper wedge groove 161. The height of the wedge coupling piece 18 is configured to be the same as the depth of the upper wedge groove (161). Therefore, when the locking block 10 is stacked in two stages as shown in FIGS. 3 and 4, the wedge coupling piece 18 of the upper locking block 10 has an upper wedge groove 161 of the lower locking block 10. The fit is combined.

In addition, when the locking blocks 10 are stacked in the height direction, the block locking jaw 19 is formed to be stably installed without distortion. At this time, the block catching jaw 19 is formed at a portion where the inner surface of the lower rear block blade 14B and the bottom surface of the bottom portion 122 meet.

Meanwhile, an upper vortex curved surface 123b and a lower vortex curved surface 123c may be formed on the front part 123 to vertically symmetrically disperse the inflow of the current flowing into the shore from the sea side. The upper vortex curved surface 123b and the lower vortex curved surface 123c are formed in an arc shape by the same radius of curvature. Therefore, the current flowing into the front part 123 is guided to the upper vortex curved surface 123b and the lower vortex curved surface 123c based on the center and divided into two parts to distribute the direction of the flow velocity so that the latent block 10 receives It can reduce the wave energy.

In addition, as another example, as shown in FIG. 2, a single vortex curved surface 123a may be formed on the front portion 123 of the subtraction block 10 to vertically distribute the inflow of the currents flowing from the sea side to the shore. The unitary vortex curved surface 123a is formed into an arc by one radius of curvature.

In addition, one or more through holes 125a communicating with the hollow 121 may be further formed on the upper surface 125. The through hole 125a may be used as an inlet for filling a sandstone or the like into the hollow 121 or as a distribution passage for inflow of fish and sea oil.

In addition, the upper surface portion 125 and the lower surface portion 122 may be further formed with a pair of male and female recessed grooves 126a and recessed protrusions 126b having contours of the same shape on both end surfaces in the width direction. Therefore, as shown in FIG. 5, when the interlocking blocks 10 are installed to be extended in the width direction, the neighboring recessed grooves 126a and the recessed projections 126b are coupled to thereby strengthen the binding.

7A and 7B, one or more current inflow holes 223 may be further formed in the front portion 123 of the subtraction block 10 to reduce impact from wave energy at the foremost side during construction. Although the shape of the current inflow hole 223 in the present embodiment is configured in a circular shape, it may be configured in a square or the like, but is not limited to a specific shape.

The construction state and operation of the locking block configured as described above will be described.

As shown in FIG. 6, the subtraction block 10 is disposed in the longitudinal direction, the height direction, and the width direction in consideration of the erosion area of the coast and the height of the sea surface. At this time, the front portion 123 of each of the blocking blocks 10 is disposed toward the sea side. FIG. 6 shows that the interlocking blocks 10 are stacked in two upper and lower stages, so that the first and second blocking blocks are constructed.

At this time, when looking at the structure provided in the width direction, one lower front block wing 14A between neighboring submerged blocks 10 and 10 is in contact with the other lower rear block wing 14B and the edges. In addition, looking at the structure stacked on the upper side, the wedge coupling piece 18 of the upper side locking block 10 is coupled to the upper wedge groove 161 of the lower side locking block 10. At the same time, the block latching jaw 19 of the upper side locking block 10 is supported by the surface of the upper front block blade 14a of the lower side locking block 10 by surface joining.

Here, preferably, the artificial reef combined with the coastal erosion prevention interlocking block 10 of FIG. 7A is disposed on the forefront of the first and second interlocking block layers, but the current inflow hole 223 is constructed to face the sea side.

When the blocking blocks 10 are stacked in this manner, the locking block 10 located on the upper side of the locking block 10 and the block locking jaw 19 are resistant to the wave energy. This will stabilize the overall coupling of the block 10. That is, the latent blocks 10 are constrained and resist each other by the impact of the wave force so that the posture is not misaligned or spaced apart.

In addition, the wave energy pushed to the shore is dispersed by the upper vortex curved surface 123b and the lower vortex curved surface 123c on the front part 123 side to return to form a vortex, thereby improving the ability to withstand the wave force. On the contrary, the current flowing back from the land to the sea side is blocked by the rear portion 124 of the submerged block 10, so that the flow rate is significantly reduced, thereby suppressing sand discharge and preventing coastal erosion. At this time, the lock block 10 stacked on the upper side is supported by the lower rear block wing 14B of the lock block 10 adjacent to the same layer as the upper front block wing 14C of the lower lock block 10. Flow is prevented.

In addition, the current flow inlet hole 223 is disposed at the foremost side in the area where the latent block is constructed to introduce the inflow flow of the current in the hollow into the hollow 121, and then direct the side and upper through holes 125a to reduce the direct impact. Excellent after safety.

On the other hand, voids are formed between the hollow 121 and the neighboring submerged blocks 10 to form artificial reefs, and since the artificial reefs do not directly receive the inflow of currents caused by waves, they are advantageous for the habitat of fish and the reefs. Done.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the above teachings. will be. The invention is not limited by the invention as such variations and modifications but only by the claims appended hereto.

12: block body
121: hollow
122: bottom
123: front
123a, 123b, 123c: vortex surface
223: current inflow hole
125a: through hole
14A: Lower front block wing
14B: Lower rear block wing
14C: Upper front block wing
16: upper locking piece
161: upper wedge groove
18: wedge joining piece
19: block jam

Claims (7)

It has a hollow 121 penetrated in the width direction, the bottom portion 122 located on the lower side of the hollow 121, the front portion 123, the bottom portion 122 of the bottom portion 122 of the bottom portion 122 A box-shaped block body 12 made up of the other side and having a rear portion 124 facing the front portion 123 and an upper portion 125 disposed above the bottom portion 122 and facing each other;
The lower front block wing 14A, the lower rear block wing 14B, and the upper front block wing 14C, which are located at the corners of the bottom portion 122 and the front portion 123 of the block body 12, protrude and extend. ;
An upper locking piece 16 having an upper wedge groove 161 on one side of an upper surface portion 125 of the block body 12;
A wedge engaging piece 18 having the same shape as protruding downward from the bottom of the bottom portion 122 of the block body 12 and corresponding to the upper wedge groove 161;
The artificial reef combined coastal erosion prevention blocking block, characterized in that it comprises a block engaging jaw (19) formed in a portion where the inner surface of the lower rear block wing (14B) and the bottom surface 122 meets. The method of claim 1,
The front portion 123 is a combined artificial reef combined coastal erosion prevention block block characterized in that a single vortex curved surface (123a) is formed to distribute the inflow of the current flowing into the coast from the sea side up and down. The method of claim 1,
The front portion 123 is combined with artificial reefs, characterized in that the upper vortex curved surface 123b and the lower vortex curved surface 123c forming a vertical symmetry to distribute the inflow of the current flowing into the coast from the sea side up and down Seawall Erosion Prevention Block. The method of claim 1,
The upper surface portion 125 is an artificial reef combined coastal erosion prevention blocking block, characterized in that the through hole (125a) is further formed in communication with the hollow 121. The method of claim 1,
The upper surface 125 has a pair of male and female recessed grooves 126a and recessed protrusions 126b having contours of the same shape on both end surfaces in the width direction, and the artificial erect combined coastal erosion prevention block. The method of claim 1,
The front portion 123 is one or more ocean current inlet hole 223 for introducing the current flowing into the hollow (121) flowing in the blue artificial reef combined, characterized in that the erosion prevention block block. Claim 1 to 6 of the artificial reef combined coastal erosion prevention block according to any one of claims 1 to 6 so that the front portion 123 facing the sea side is arranged adjacent to the sea side of the coast in the width direction and the width direction first However, the latent block layer is constructed;
Stacking the second block or more of the potential block layers in consideration of the height of the installed sea surface by arranging the same artificial reef combined coastal erosion prevention block on the upper portion of the first layer of the potential block layer;
Combined coastal erosion prevention interlock for artificial reefs having an ocean current inlet hole 223 on the forefront side of the submerged block layer of each stage, but combined with the artificial reefs, characterized in that the current inlet hole 223 is constructed facing the sea side Construction method using coastal erosion prevention block.

Images