KR102435815B1 - Crescentic type permeable offshore breakwater for prevention of local beach erosion - Google Patents

Abstract

Disclosed is a permeable arc ointment for preventing localized coastal erosion. The permeable arc-type ointment for preventing local coastal erosion according to the present invention is installed in the coastal wavebreaking zone so that a part is exposed to the sea level, and is a lint agent for reducing local coastal erosion. Each base block is arranged in an open arc toward the open sea; and a plurality of sofa blocks each formed in an arc shape, stacked on top of the base block and combined, and the hollow inner space is opened in all directions by the through holes, and breaking the incident waves traveling from the open sea to the shore. It is characterized in that it reduces wave energy and disperses the refracted wave current to the shoreline.

Description

CRESENTIC TYPE PERMEABLE OFFSHORE BREAKWATER FOR PREVENTION OF LOCAL BEACH EROSION to prevent localized coastal erosion

The present invention relates to a permeable arc-shaped ointment for preventing local coastal erosion, and more particularly, to reduce the energy of high wave or swell wave by installing it in the shoreline front breaking zone where local beach erosion occurs or is expected. It relates to a permeable arc-type ointment for preventing localized coastal erosion, which can prevent and reduce beach erosion caused by waves by reducing sand loss at a beach or white sandy beach.

Recently, coastal erosion occurs frequently because of sea level rise due to monsoon winds and global warming, and wave energy that occurs continuously. The erosion of the coast due to these causes is continuously progressing, and depending on the season, the white sandy beach of the coast is eroded and the phenomenon that sedimentation occurs is seriously progressing.

Various construction methods have been proposed to prevent coastal erosion due to these causes. For example, as a construction method to prevent coastal erosion, it is a construction method that installs tetrapots, linje, stones, jamje, etc. on the shore or in the breaking zone.

Tetraport is formed in an irregular structure in the shape of a radial cone-shaped cone, and is constructed in a way that it is put into the breaking zone and laminated. there was.

On the other hand, Ianje, Jamje, etc. are installed in the coastal breaking zone to reduce the wave energy and then act on the coast to minimize coastal erosion.

Among the prior art for preventing coastal erosion, Korean Patent Registration No. 10-928429 (published on November 24, 2009) discloses a block for preventing coastal erosion. In this prior art, by assembling the front, rear, left, and right in a manner of inserting a coupling protrusion into the coupling groove, a wave is dispersed, resistance is reduced, and an entrance hole is formed that can exchange seawater.

The coastal erosion prevention block according to the prior art can be combined in multiple stages by connecting the left and right lengths suitable for the coastal environment and stacking them up and down, so that waves coming from the front can be dispersed. In addition, the sand that rushes in with the waves passes to the shore along the slope formed on the front side, and prevents the sand lost by the waves to maintain the deposited state, thereby preventing coastal erosion.

Meanwhile, as another prior art, Korean Patent Laid-Open No. 10-2007-0033400 (published on March 26, 2007) discloses a lint agent capable of selectively collecting sand and nitrate. This lint agent is a lint agent capable of preventing coastal erosion by tidal currents and waves approaching the shore, and is provided with a plurality of tubular through-holes to allow seawater to flow.

However, since the coastal erosion prevention block or riparian according to the prior art was installed parallel to the coastline with a length of about 30 - 100 m by connecting each block or riparian in a line, wave energy could not be efficiently and uniformly dispersed. did. In addition, there was a problem that erosion was aggravated at the rear of both ends of the coastal erosion prevention block (the coastal side of both ends) by generating a new beach current by concentrating the wave energy into the area at both ends of the coastal erosion prevention block. In addition, there was a problem in that the sedimentation of sand was concentrated in the central rear (the coastal side of the central area) of the coastal erosion prevention block.

. Republic of Korea Patent Registration No. 10-928429 (Announcement Date: 2009.11.24) . Republic of Korea Patent Publication No. 10-2007-0033400 (published date: 2007.03.26)

An object of the present invention is to reduce the energy of high waves or swell waves by dispersing the energy of high waves or swell waves in the radial direction of the arc by preemptively installing them in the breaking zone of the shoreline where local coastal erosion occurs or is expected, and to reduce the loss of sand at the beach or white sand beach. The purpose of this project is to provide a means to prevent and reduce beach erosion at the beach due to waves.

In addition, the problem to be solved by the present invention is not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

The above object is, according to the present invention, as a lint agent for reducing local coastal erosion by being installed in the sea breaking zone of the coast so that a part is exposed to the sea level, each formed in an arc shape and arranged in an arc shape open toward the open sea on the seabed each basic block to be; and a plurality of sofa blocks each formed in an arc shape, stacked on top of the base block and combined, and the hollow inner space is opened in all directions by the through holes, and breaking the incident waves traveling from the open sea to the shore. It is achieved by a permeable arc-type ophthalmic agent for preventing localized coastal erosion, characterized in that it reduces wave energy and disperses the refracted wave currents to the shoreline.

A fixing means for fixing the position to the seabed is provided on the bottom surface of the basic block, and the fixing means is at least two or more positioning projections protruding downward from the bottom surface of the basic block or the seabed penetrating the basic block. It may be made of a fixed pile penetrating the surface.

The sofa block may be formed in a trapezoidal shape that is narrower upward, or an outer portion facing the shore is formed vertically and an inner portion facing the outer sea may be formed to be inclined upward from the bottom.

Corners facing outward of the base block and the sofa block disposed at both ends of the eyepiece may be fillets, respectively.

The sofa block further includes a means for preventing over-wave, and the means for preventing over-breaking is made of an over-breaking block coupled to the upper surface of the sofa block by having sofa holes, or the lower end is vertically coupled to the upper surface of the sofa block, respectively. each guide rod being; and a buoyancy member that is movably coupled to the guide rod in the upper and lower portions and has buoyancy to prevent over-wave while ascending and/or descending according to the height of the wave.

The base block and the sofa block are coupled to each other by a coupling means for increasing the coupling force when stacked and coupled to each other, and the coupling means is a pair on both sides of the middle portion on the upper surface of the basic block and the sofa block, respectively a recessed coupling groove; And it may be composed of a coupling protrusion formed to protrude to be inserted into the coupling groove in each corner region of both bottom surfaces of the base block and the sofa block.

The coupling means, in a state in which the coupling protrusion is inserted into the coupling groove and stacked and coupled to each other, consists of a coupling member coupled through the sofa block and the base block, or each formed on the upper surface of the sofa block on both sides It may consist of a coupling block in which both ends are fitted into the connection groove of the .

The base block may be formed in a solid structure, or a through hole communicating with each other is formed, and the rear surface facing the shoreline may be formed in a structure having a blocking portion for blocking the outflow of soil.

The arc-shaped lint agent may be formed in an arc shape having the same or similar curvature to the curvature of the shoreline.

On the bottom of the base block, an inclined surface inclined to one side may be formed so as to be seated horizontally on the inclined sea floor.

On the upper edge and the lower edge of the inclined surface, a scour prevention part for preventing scouring by a part of the base block digging into the seabed when it is seated on the seabed may be formed extending downwardly.

At the bottom edge of the base block, a scour prevention part for preventing scouring by digging into the seabed when seated on the seabed may be formed extending downwardly.

The base block and the sofa block are arranged in one row or multiple rows, and when they are arranged in multiple rows, they may be gradually stacked lower toward the outer sea.

According to the present invention, by installing an arc-shaped permeable arc-shaped lint agent in the entire breaking zone of the shoreline where local coastal erosion is generated or expected so that the open part faces the open sea, high waves or swell waves are broken by the arc-shaped polarizer. It is possible to provide the effect that energy can be reduced.

In addition, since the wave energy is reduced as the high wave or swell wave is broken by the arc-shaped polarizer, it is possible to reduce the loss of sand at the beach or white sandy beach, and thus it is possible to prevent and reduce beach erosion at the beach due to the wave. be able to do

In addition, by constructing the same or similar arc-shaped polarizer as that of the arc-shaped sandbar (or crescent sand sandbar) on the breaking zone, the high wave or swell wave is refracted after breaking by the arc-shaped polarizer to spread uniformly and widely across the coastline. Therefore, it is possible to provide an effect of reducing the erosion phenomenon occurring on the rear surface of both ends of the linear latent agent or the breakwater according to the prior art or the deposition occurring on the rear surface. That is, it is possible to prevent and reduce beach erosion by breaking the high waves or swell waves while penetrating the arc-shaped ripples to form a radial uniform wave flow to the shoreline.

In addition, it is possible to provide an effect of minimizing the loss by preventing the soil and sand lost in the direction of the open sea by the wave flow by forming a blocking part on the base block of the arc-shaped glazing agent.

In addition, it is possible to provide an effect that can serve as a habitat for marine organisms, including benthic and swimming animals, by having an inner space and opening the inner space in all directions by passing holes. In other words, the arc-shaped underwater breakwater can serve as an artificial reef that provides habitat, spawning, and hiding places for marine creatures by forming internal spaces and passage holes.

1 is an exploded perspective view showing a permeable arc-shaped ocular agent for preventing local coastal erosion according to the present invention.
FIG. 2 is a perspective view of a combined state showing a permeable arc-shaped ocular agent for preventing local coastal erosion shown in FIG. 1 .
FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 .
4 is a cross-sectional view taken along line BB of FIG. 2 .
5 is a partially enlarged cross-sectional view showing another embodiment of the fixing means shown in FIGS. 1 and 3 .
6 (a) and (b) are a side cross-sectional view and a partially enlarged perspective view showing another embodiment of the coupling means shown in FIG.
7 is a side cross-sectional view showing another embodiment of the sofa block shown in FIG.
8 to 11 are partially enlarged cross-sectional views showing another embodiment of the base block shown in FIG.
12 is a schematic side view illustrating a state in which the permeable arc-shaped liniment agent for preventing local coastal erosion shown in FIG. 1 is arranged in multiple rows.
13 (a) and (b) are schematic cross-sectional views illustrating that the wave blocking means is provided in the sofa block shown in FIG. 1 .
14 and 15 are schematic plan views for explaining the action of the permeable arc-shaped lint agent for preventing local coastal erosion shown in FIG. It is a schematic plan view expressed, and FIG. 12 is a schematic plan view expressing the dispersion of the wave flow generated when the wave is broken by the arc-shaped Ianje.
FIG. 16 is a schematic plan view showing a state in which the permeable arc-shaped lint agent for preventing local coastal erosion shown in FIG. 1 is formed with a curvature equal to or similar to the curvature of the shoreline.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted in order to clarify the gist of the present invention.

In addition, the terms used herein are for the purpose of describing the embodiments and are not intended to limit the present invention. In this specification, the singular also includes the plural, unless specifically stated otherwise in the phrase. As used herein, 'comprises' and/or 'comprising' does not exclude the presence or addition of one or more other elements.

In addition, when it is said that a certain element is "connected" to another element, it may be directly connected to the other element, but it should be understood that another element may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle.

Among the accompanying drawings, FIG. 1 is an exploded perspective view showing a permeable arc-shaped lint agent for preventing local coastal erosion according to the present invention, and FIG. It is a perspective view showing a coupled state, and FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 . And, FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2 .

As shown in FIGS. 1 to 4 , the permeable arc-shaped ophthalmic agent 30 according to the present invention is installed in the breaking zone of the coast to break the incident wave traveling from the open sea to the coast to reduce the wave energy, and to be refracted by breaking. This is to reduce the local coastal erosion of the coast by dispersing the current wave flow to the shoreline.

The arc-shaped sand column-shaped permeable arc-shaped eye drops 30 are each formed in an arc shape and each of the base blocks 32 arranged in an arc open to the sea bottom toward the sea floor, and the base blocks 32 each formed in an arc shape. ) is stacked on top of the combined and hollow inner space (S) is opened in all directions by the through-holes (34A) and is configured to include a plurality of sofa blocks (34) whose uppermost part is partially exposed to the sea level.

The base blocks 32 and the wave block 34 constituting the permeable arc-shaped eyepiece 30 are respectively formed in an arc shape having a predetermined curvature in the horizontal direction with respect to the plane. Therefore, when the base blocks 32 and the sofa blocks 34 are stacked in the vertical direction and assembled in the horizontal direction, the linjee 30 forms an arc shape having a predetermined curvature as a whole. Therefore, the curvature size of the permeable arc-shaped eye drops 30 is determined by the curvature of each of the base blocks 32 and the wave block 34 .

These foundation blocks 32 and the sofa blocks 34 have a reinforced concrete structure.

The base block 32, which forms the basis of the linjee 30, is seated on the sea floor to have a fixed position, and the sofa blocks 34 are stacked and coupled to each other shifted at the top. This base block 32 has a structure that is opened in all directions by the through-holes 32E as shown in FIG. 3 . At this time, as shown in FIG. 8, the foundation block 32 has through-holes 32E communicating with each other, and the rear surface facing the shoreline has a blocking part 32F for blocking the outflow of soil. Can be formed. have. The aforementioned through hole 32E is for allowing the eye ophthalmic agent 30 to communicate with the inner space to have permeability, and thus the ophthalmic agent 30 may serve as a habitat for marine organisms.

Although not shown in the drawings, the basic block 32 may be formed in a solid structure with a filling inside.

On the other hand, on the bottom of the base block 32, a fixing means for fixing the position on the sea floor is provided. The fixing means is to prevent the base block 32 from being arbitrarily changed by sliding by an external force when it is installed on the seabed. This fixing means consists of a position fixing projection (32A) protruding downward from the bottom surface of the base block (32). The position fixing protrusion 32A may be formed in a conical or quadrangular pyramid shape. The position fixing protrusion 32A may be made of metal or reinforced concrete. In addition, the position fixing protrusion 32A may be formed integrally with the base block 32 or may be separately manufactured and detachably coupled. In addition, the position fixing protrusion 32A is formed to have different lengths or sizes, so that when the sea bottom is inclined toward the open sea, a long and large position fixing protrusion 32A is placed on the outer sea side to the horizontal of the base block 32 . can keep In addition, the position fixing protrusion (32A) may be provided on the entire bottom surface of the base block (32) consisting of a plurality, respectively.

Meanwhile, FIG. 5 is a partially enlarged cross-sectional view illustrating another embodiment of the fixing means shown in FIGS. 1 and 3 . As shown in Figure 5, the fixing means may be made of a fixed pile (32B) penetrating the sea floor through the base block (32). As such, the fixed pile 32B penetrates the base block 32 and penetrates the sea floor, so that the base block 32 can be more firmly fixed in position. In addition, although not shown in the drawings, the fixing means may be composed of a suction pile.

The base block 32 may have an inclined surface 32G for being stably seated in a horizontal state on the inclined seafloor. As shown in FIG. 9 , an inclined surface 32G whose bottom surface corresponds to the inclination of the sea floor may be formed. That is, the inclined surface 32G is formed on the bottom surface so that the opposite side facing the sea side is lower than the one side facing the shore side. As described above, since the inclined surface 32G is formed on the bottom surface of the foundation block 32, it is possible to seat the foundation block 32 in a stable horizontal state when the arc-shaped relief 30 is constructed on the inclined sea floor.

The base block 32 may include a scour prevention part 32G-1. As shown in FIG. 10, when the base block 32 is seated on the sea floor at the upper edge A1 and the lower edge A2 of the inclined surface 32G formed on the bottom of the base block 32, A scour prevention part 32G-1 for preventing scouring by digging into the seafloor may be formed to extend downward, respectively. The scour prevention part 32G-1 may be formed to extend curvedly inwardly or may be formed to extend directly downwardly.

The base block 32 may include a scour prevention part 32G-2 according to another embodiment. 11, at the front, rear, left and right bottom edges of the base block 32, when seated on the sea floor, a part digs into the sea floor to prevent scouring (32G-2) ) is formed extending downward. The anti-scouring portion 32G-2 may be formed to be curved inwardly or may be formed to extend directly downwardly.

In addition, although not shown in FIGS. 10 and 11 , the aforementioned fixing means are provided on the bottom surface of the base block 32 separately from the scour prevention parts 32G-1 and 32G-2, respectively.

In this way, the scour prevention parts 32G-1 and 32G-2 are provided on the bottom edge of the base block 32, respectively, so that scouring by waves, currents, currents, etc. can be prevented. That is, since the scour prevention parts 32G-1 and 32G-2 formed extending downwardly maintain a state digging deeper into the sea floor than the bottom of the foundation block 32, even if waves, currents, currents, etc. act, the basic block ( 32) and the sea floor will not be scoured.

The sofa block 34 has a reinforced concrete structure in which the hollow inner space (S) is opened in all directions by the through holes (34A) as shown in FIGS. 1 and 2, and a part of the wave passes through the holes Not only can they be broken while passing through (34A), but also the inner space (S) and the through holes (34A) can function as an aboriginal space in which marine creatures inhabit.

The sofa block 34 may be configured such that the width of the upper portion and the width of the lower portion are the same as shown in FIGS. 1 and 2, but is not limited thereto, and is formed in a trapezoidal shape that becomes narrower toward the upper portion. can In addition, the sofa block 34, as shown in FIG. 7, the outer portion 34-1 facing the shore is formed vertically and the inner portion 34-2 facing the outer sea may be formed to be inclined upward from the bottom. . In this way, by forming the cross-sectional area (or width) of the upper part smaller than the cross-sectional area (or width) of the lower part of the sofa block 34, stability can be secured when each of the sofa blocks 34 are stacked, and in particular, in high blue resistance can be improved.

1, 2, and 4, the corner (C) facing outward of the base block 32 and the sofa block 34 disposed at both ends of the eyepiece 10 is a fillet, respectively. . That is, by rounding each corner (C), it can be prevented that each corner (C: corner) is easily damaged by the wave.

The base blocks 32 and the sofa blocks 34 constituting the above-described eyepiece 10 are stacked with each other and coupled to each other by a coupling means for increasing the coupling force when coupled in a horizontal direction. As shown in Figures 1 and 3, the coupling means, the base block 32 and the upper surface of the sofa block 34 are formed in pairs in the middle of both sides, respectively recessed coupling grooves (32C, 34C), and the sofa block It is composed of engaging projections (34D) each protruding so as to be inserted into the engaging grooves (32C, 34C) in each corner area of the bottom surface of both sides (34). The coupling protrusion 34D may have a hemispherical or polygonal pyramid shape (triangular pyramid or quadrangular pyramid, etc.), and the coupling grooves 32C and 34C are formed in a shape in which the coupling protrusion 34D can be fitted. When the sofa block 34 is seated on the upper surface of the base block 32 and another sofa block 34 is stacked on the upper surface of the sofa block 34, each coupling protrusion 34D is a sofa block ( 34) by the load in the vertical direction by its own weight, it is inserted into the coupling grooves (32C, 34C) can maintain the coupled state.

On the other hand, the coupling means is, as shown in (a) of Figure 6, the coupling protrusion 34D is inserted into the coupling grooves 32C, 34C and stacked with each other in a coupled state, the sofa blocks 34 and the base block It may be composed of a coupling member 38 penetrating through (32) and penetrating the seabed. The coupling member 38 may be formed of a metal pipe, a circular or polygonal column of a reinforced concrete structure. In this way, in a state in which the sofa blocks 34 are stacked, one to four coupling members 38 are coupled through each sofa block 34, or each sofa block 34 and the base blocks 32 are connected to each other. By penetrating through and penetrating the sea floor, each of the sofa blocks 34, or each of the sofa blocks 34 and the foundation block 32 can be maintained in a solidly coupled state.

Another coupling means, as shown in (b) of FIG. 6, is a coupling block 36 having both ends fitted into each connection groove 34-3 formed on the upper surface of the sofa blocks 34 on both sides, respectively. is made up of Each of the connection grooves 34-3 has a structure that is opened upward, and has a wide inner side and a narrow outer side. And when the side surfaces of the sofa block 34 on both sides contact each other, the connection grooves 34-3 on both sides communicate with each other. Therefore, by inserting the coupling block 36 into the connecting grooves 34-3 on both sides communicating with each other, the sofa blocks 34 on both sides can maintain a firmly coupled state.

At this time, of course, the coupling means made of the coupling block 36 as shown in (b) of FIG. 6 can be equally applied to the basic blocks 32 .

On the other hand, among the accompanying drawings, (a) and (b) of Figure 13 is a schematic cross-sectional view showing that the wave blocking means provided in the sofa block shown in FIG. As shown in (a) and (b) of Figure 13, the sofa block 34 is further provided with an overpass preventing means (70).

As shown in (a) of FIG. 13, the overpass prevention means 70 is provided with a breakout hole 72A and is positioned at the top and is coupled to the upper surface of the wave block 34 exposed to the sea level. ) is made of At this time, the breaking hole (72A) of the wave block 72 may be in communication with the through hole (34A) of the breaking block (34). At this time, the overpass block 72 is composed of a reinforced concrete structure and may be manufactured integrally with the sofa block 34, or may be separately manufactured and coupled to be integrated with each other by a coupling means.

On the other hand, the over-wave preventing means 70 is, as shown in FIG. 13 (b), each guide rod (74A) in which the lower end is vertically coupled to the upper surface of the sofa block 34 stacked on the uppermost part, and, A buoyancy member (74C) that is movably coupled to the guide rods (74A) to be movable up and down, and has a buoyancy space (74D) to prevent over-wave while ascending and/or descending according to the height of the wave ( 74B). These overpass prevention means 70 are configured so that the buoyancy member 74B is guided in the vertical direction to each guide rod 74A and rises as the height of the sea level, that is, waves or waves rise, so that even if a high wave or wave occurs, each The buoyancy member 74B of the guide rod (74A) rises to the height of the sea level within the allowable range to prevent the overtaking.

And, the overbreaking block 72 or the buoyancy member 74B constituting the overtaking preventing means 70 also forms an arc shape of the same or similar curvature as the wave block 34, so the arc-shaped ointment 30 including the overtaking preventing means 70 ) will form an arc.

The foundation blocks 32 and the sofa blocks 34 configured in this way are assembled and constructed in the following way.

First, the foundation blocks 32 are seated horizontally on the sea floor. At this time, each side of the base blocks 32 are brought into close contact with each other and then connected to each other by using the above-described coupling means.

And by using a fixing means, each of the basic blocks 32 are firmly fixed to the sea floor.

Since each of the basic blocks 32 is formed in an arc shape having a predetermined curvature, when the basic blocks 32 are connected to each other, an arc shape of a predetermined size is formed. At this time, the arc formed by the base blocks 32 is arranged to open toward the sea. That is, the outer part 34-1 of the arc is disposed to face the coastline, and the inner part 34-2 is disposed to face the open sea. This is to ensure that the incident waves from the open sea are evenly distributed radially after entering the inside of the arc.

Next, the sofa blocks 34 are stacked on the upper surface of the base block 32 so as to be shifted from each other and combined. At this time, the base blocks 32 and the sofa blocks 34, each sofa block 34 is connected to each other by a coupling means to maintain the coupled state.

By the above-described process, the base blocks 32 and the sofa blocks 34 are connected to each other and coupled, thereby completing the assembly while forming the linjee 30 in an arc shape.

When the construction of the foundation blocks 32 and the sofa blocks 34 is completed, an overpass prevention means 70 is installed on the upper surface of the sofa block 34 located at the uppermost portion of the arc-shaped relief 30 as needed.

On the other hand, the arc-shaped eye drops 30 may be constructed in one row as shown in FIG. 1 or may be arranged in multiple rows as shown in FIG. 12 . In the case of being arranged in multiple rows, the height may be lowered toward the open sea. Of course, on the contrary, the height may be higher toward the open sea.

The operation of the state in which the arc-shaped linjee 30 configured as described above is installed in the breaking zone will be described.

As shown in FIG. 14, high waves or swell waves incident from the open sea collide with the arc-shaped sand pole 30 while some of them move to the coastline CL through the through holes 32E and 34A, and the rest Some collide with the foundation block 32 and the sofa block 34 and are crushed. At this time, since high waves or swell waves are uniformly broken radially after being incident on the arc-shaped eyepiece 30 having an arc shape, wave energy can be reduced in a dispersed state within the range of the arc.

In particular, as shown in FIG. 15 , the wave current W1 formed by breaking into the riparian 30 of the arc-shaped sand bar is widely dispersed on the shoreline CL, and thus beach erosion can be reduced.

And, when the sea level rises by high waves or swell waves incident from the open sea, the over-wave prevention means 70 provided in the upper sofa block 34 can prevent or reduce the over-wave. That is, since the over-wave prevention means 70 exposed to the sea level breaks the waves caused by high waves or swell waves and disperses them, over-wave can be prevented or minimized.

On the other hand, as shown in FIG. 16 , the curvature of the arc-shaped sand bar-shaped Ianje 30 may be formed to have the same or similar curvature to the curvature of the shoreline CL. In this way, by forming the curvature of the ocular material 30 to have the same or similar curvature to the curvature of the shoreline CL, the energy of the incident wave including the high wave or swell wave can be efficiently dispersed and reduced.

In addition, although not shown in the drawing, by disposing a plurality of arc-shaped eye drops 30 to each other in the direction of the open sea, energy of incident waves including high waves or swell waves can be efficiently dispersed and reduced.

In the foregoing, specific embodiments of the present invention have been described and illustrated, but it is common knowledge in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Accordingly, such modifications or variations should not be individually understood from the technical spirit or point of view of the present invention, and modified embodiments should be said to belong to the claims of the present invention.

30: Lee Anje 32: basic block
32A: position fixing protrusion 32B: fixing pile
32C, 34C: Combination groove 32E, 34A: Through hole
34: sofa block 34D: coupling protrusion
36: coupling block 38: coupling member
70: means for preventing over-wave 72: block from over-wave
74A: guide rod 74B: buoyancy member
S : interior space CL : coastline
W1: blues

Claims (12)

It is installed in the coastal breakwater so that part of it is exposed to the sea level, and as a relief agent to prevent and reduce local coastal erosion,
Each base block is formed in an arc shape, and a through hole communicating with the outside is formed, and a blocking part for blocking the outflow of soil is formed on the rear surface facing the shoreline, and each base block is arranged in an arc shape open toward the open sea on the sea floor; and a plurality of sofa blocks each formed in an arc shape, stacked on top of the base block and coupled, the inner space is opened in all directions by the through holes, and a part of the sofa blocks stacked on the upper part are exposed to the sea level,
The sofa block further includes an over-wave preventing means, wherein the over-wave preventing means is coupled to the upper surface of the sofa block by having sofa holes communicating with the passage holes of the sofa block and has an arc shape of the same or similar curvature to the sofa block. Or each of the guide rods made of a superblock formed of, or vertically coupled to the lower end of the upper surface of the sofa block; And it is coupled to the guide rod to move up and down, and having a buoyancy space therein so as to have buoyancy, and is formed in an arc shape having the same or similar curvature as the sofa block, so as to rise or fall according to the height of the wave. It consists of a buoyancy member to prevent
The base block and the sofa block are fitted to each other by a coupling means for increasing the coupling force when stacked and coupled to each other, and the coupling means is a pair in both middle portions on the upper surface of the basic block and the sofa block. each recessed coupling groove; and coupling protrusions each protruding to be inserted into the coupling grooves in each corner area of both bottom surfaces of the base block and the sofa block,
The coupling means, in a state in which the coupling protrusion is inserted into the coupling groove and stacked with each other, is made of a coupling member coupled through the sofa block and the base block, or is opened upward and the inside is wide and the outside is narrow In a shape, it further comprises a coupling block having both ends fitted into each connection groove formed on the upper surface of the sofa block, respectively,
The base block and the sofa block are arranged in one row or multiple rows, and when they are arranged in multiple rows, they are stacked gradually lower toward the open sea to break the incident waves from the open sea to the shore to reduce wave energy, Characterized in that the wave is broken and refracted to disperse the wave to the shoreline,
A permeable arc-shaped ophthalmic agent to prevent local coastal erosion. According to claim 1,
On the bottom of the base block,
A fixing means for fixing the position on the seabed is provided, and the fixing means is two or more equator fixing projections protruding downward from the bottom of the base block or a fixed pile penetrating into the sea floor through the foundation block characterized in that it consists of
A permeable arc-shaped ophthalmic agent to prevent local coastal erosion. According to claim 1,
The sofa block is
It is formed in a narrow trapezoidal shape as it goes upward, or the outer part facing the coast is formed vertically and the inner part facing the open sea is formed to be inclined upward from the bottom, characterized in that,
A permeable arc-shaped ophthalmic agent to prevent local coastal erosion. delete delete delete delete According to claim 1,
The arc-shaped ophthalmic agent,
Characterized in that it is formed in an arc shape of the same or similar curvature to the curvature of the coastline,
A permeable arc-shaped ophthalmic agent to prevent local coastal erosion. According to claim 1,
On the bottom of the base block,
Characterized in that the inclined surface inclined to one side is formed so as to be seated horizontally on the inclined seabed,
A permeable arc-shaped ophthalmic agent to prevent local coastal erosion. 10. The method of claim 9,
On the upper edge and the lower edge of the slope,
Characterized in that when the base block is seated on the sea floor, a part of the scour prevention part is formed to extend downward to prevent scouring by digging into the sea floor,
A permeable arc-shaped ophthalmic agent to prevent local coastal erosion. According to claim 1,
At the bottom edge of the base block,
Characterized in that when seated on the seabed, a part of the scour prevention part is formed to extend downward to prevent scouring by digging into the seabed,
A permeable arc-shaped ophthalmic agent to prevent local coastal erosion.


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