KR20230047647A - Wave Dissipating Block Structure and Its Mounting Method - Google Patents

Abstract

The present invention relates to a wave dissipating block structure, which is structure preventing soil loss and including: a body part made of concrete; a plurality of first leg parts connected to one end of the body part, each extending in the longitudinal direction, and disposed on a first plane; and a plurality of second leg parts connected to the other end of the body part, each extending in the longitudinal direction, and disposed on a second plane perpendicular to the first plane. According to the present invention, the wave dissipating block structure comprises: a first reinforcement unit provided surrounding the body part where the first leg part and the second leg part are connected and protruding outward; a second reinforcement unit provided on a portion of the first leg part and protruding outward; and a water flow inducing unit provided in a channel shape set by the second reinforcement unit to guide the flow of water.

Description

Sofa block structure and its mounting method {Wave Dissipating Block Structure and Its Mounting Method}

The present invention is to prevent the leakage of soil by installing it in a place receiving external large water or large waves in order to prevent soil loss of rivers and coastal slopes, and more specifically, to improve structural fragility and interlocking, workability and It relates to a sofa block structure capable of securing stability and a mounting method thereof.

In general, slopes are installed on both sides of the river, and the slopes prevent flooding of the river to ensure the safety of residents adjacent to the river, as well as the banks formed in connection with the slope so that residents can lead a comfortable life. will help

On the slope of the river, a retaining wall is installed using concrete on the side in contact with the river, and a sidewalk is installed on the bank in contact with the slope.

However, most of the river slopes do not have countermeasures against loss in the event of a major flood, so it is our reality that the river slopes easily collapse during the rainy season, resulting in large-scale human accidents and property loss.

On the other hand, there was a problem that various filth thrown on the sidewalk flowed into the river together with rainwater, contaminating the river.

In addition, soil loss can be prevented by using a sofa block. The sofa block is installed at a place receiving a large wave of a breakwater or revetment for the purpose of dispersing or dissipating wave energy and reducing reflected waves. , mainly concrete blocks.

As a conventional sofa block, four horn-shaped tetrapods are most often used, and dolos and sealocks, which are modified tetrapods, are also widely used recently. In particular, the tetrapods are coated in a single layer or a multi-layer on the slope of the breakwater, or a plurality of them are densely formed to form one structure when constructing a coastal erosion structure such as a jammer. Breakwaters or river beds formed by stacking tetrapods disperse or dissipate wave energy by the gaps between adjacent tetrapods, the rugged shapes of the tetrapods themselves, and their intertwining.

The sofa block should have sufficient stability against wave force, have sufficient structural strength against external force or its own weight, be easy to lift and construct, and be able to obtain an appropriate porosity when stacked to attenuate wave energy. requirements are required.

On the other hand, there are two-layer covering types and random stacking methods for the method of mounting the sofa block. The two-layer covering types include upright covering types and sloped covering types. There is a one-sided covering type.

The random stack type is easy to implement and easy to install, so it has good constructability, but the appearance is not good because it is seen by the general public as a huge concrete structure piled up in a disorderly manner.

On the other hand, the two-layer covered type is advantageous in that the sofa blocks are arranged in an orderly manner and do not harm the surrounding aesthetics even when the sofa blocks, which are huge concrete structures, are arranged. There is a problem that the construction is difficult in that the direction (angle) must be adjusted.

In addition, regardless of the shape of the sofa block, it is very difficult to align the sofa block in the initial work because the conventional sofa block structure can only be stacked from the sea floor to the top surface along the slope. In other words, in order to align the sofa blocks on the seabed, many workers have to go down to the seabed and align and mount the sofa blocks in place. However, the risk of safety accidents on the seabed is also very high.

Republic of Korea Patent No. 10-0707718 Republic of Korea Patent No. 10-1560255

Therefore, the present invention has been made to solve the above problems, and the problem to be solved by the present invention is a lead-type structure that can prevent the loss of the embankment during a major flood when installed on a river embankment. It is to provide a structure and a mounting method for preventing soil loss of rivers and coastal slopes equipped with a function to increase the structural strength of the block and improve the attachability of the rope to the bridge part for stable manufacturing and construction.

In addition, another object of the present invention is the width (W) and height (h) of the reinforcing part with improved tensile stress concentration, and each curved surface and line of the leg part coupled to the body part and both ends, respectively, are installed at the junction It is to provide a structure and a mounting method for preventing soil loss of river and coastal slopes with improved interlocking and structural strength.

However, the technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clear to those skilled in the art from the description below. You will be able to understand.

The present invention was created to improve the problems of the prior art as described above, and a body portion made of concrete, a plurality of first legs connected to one end of the body portion, each extending in the longitudinal direction, and disposed on a first plane A structure for preventing soil loss including a plurality of second legs connected to the other end of the body and a plurality of second legs extending in the longitudinal direction and disposed on a second plane perpendicular to the first plane, wherein the first leg A first reinforcing part provided while surrounding the body part to which the second leg part is connected and protruding outward; a second reinforcing part provided on a part of the first leg part and protruding outward; and a water flow guide unit provided in a channel shape having a shape set by the second reinforcing unit to induce a flow of running water.

In addition, the flowing water inducing part is formed as a cross-shaped channel by the second reinforcing part around the inflection point at the center of the front of the first leg part to induce the flow of running water.

In addition, the first reinforcing part may be formed in a closed or semi-closed type.

In addition, a hoisting protrusion tapering inward in the form of a convex wedge on the extension line of the lower end of the body and the shaft of the body and the leg portion may further include.

In addition, the lifting protrusion is formed in a wedge-shaped block model, and interlocking can be strengthened by connecting upper and lower portions to each other.

In the above-described method for mounting a structure for preventing soil loss by sofa using a sofa block structure, the set position of the structure made of concrete is composed of a body part, a leg part, a reinforcing part, and a water flow guide part to prevent soil loss. Lifting projection forming step of forming at least one lifting projection on the; After passing through the lifting protrusion forming step, a structure location movement step of lifting the structure by hanging a rope on the lifting protrusions and moving the structure to a set position; A structure arrangement step of arranging the water flow guide part of the structure whose position is being moved through the structure position movement step to face the front of the river and the coast; and a structure stacking step of repeatedly stacking and mounting the structures in the manner of the structure location moving step and the structure arrangement step.

According to one embodiment of the present invention, it has sufficient stability against wave force when installed on the coast, etc., maintains structural strength against external force or its own weight, has effective curing and construction, and has a suitable porosity when laminated to attenuate wave energy. can be obtained, so it is possible to secure workability and stability when mounting the structure.

In addition, since the lifting protrusion is installed in the form of a convex wedge on the lower part of the body, the extension of the axis of the body, and the leg, it can be used without damaging the strength of the structure in the case of a convex shape, and it is safe during construction and constructed with excellent coupling In the case of a heavy structure, it is highly effective in reducing costs by preventing safety accidents and shortening the construction period.

In addition, according to the present invention, the structural strength can be increased by 1.7 to 2.3 times or more compared to the existing structures, and the interlocking function can be improved.

However, the effects obtainable in the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and together with the detailed description of the present invention serve to further understand the technical idea of the present invention, the present invention is the details described in such drawings should not be construed as limited to
1 is a perspective view of a sofa block structure according to an embodiment of the present invention.
2 is a perspective view of the structure according to another embodiment of the present invention.
3 is a view showing specific dimensions of each part of the structure.
4 is a view showing a first embodiment that is lifted through the lifting protrusion.
5 is a view showing a second example of being lifted through the lifting protrusion.
6 is a flow chart of a sofa block structure mounting method according to another embodiment of the present invention.
7 is a view showing a state in which the structures are stacked and mounted.
8 is an exemplary view showing a form in which an overpass blocking step is provided on the first leg of a sofa block structure according to an embodiment of the present invention.
9 is an exemplary view showing a form in which a locking jaw is provided on a second leg of a sofa block structure according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

The meaning of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element. It should be understood that when an element is referred to as “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Singular expressions should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to a described feature, number, step, operation, component, part, or It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

1 is a perspective view of a sofa block structure according to an embodiment of the present invention, Figure 2 is a perspective view of the structure according to another embodiment of the present invention, Figure 3 is a view showing the specific dimensions of each part of the structure 4 is a view showing a first embodiment lifted through the lifting protrusion, Figure 5 is a view showing a second embodiment lifted through the lifting protrusion, and FIG. 8 is a view according to an embodiment of the present invention. It is an exemplary view showing a form in which an overpass blocking step is provided on the first leg of the sofa block structure, and FIG. 9 is an example view showing a form in which a stopping step is provided on the second leg of the sofa block structure according to an embodiment of the present invention am.

As shown in Figures 1 to 5. A body part 110 made of concrete, a plurality of first leg parts 120 connected to one end of the body part 110 and extending in the longitudinal direction, and disposed on a first plane, and the other end of the body part 110 A structure 100 for preventing soil loss comprising a plurality of second leg parts 130 connected to and extending in the longitudinal direction and disposed on a second plane perpendicular to the first plane, the present invention is a first It may include a reinforcement part 140, a second reinforcement part 150, and a water flow guide part 160.

The first reinforcement part 140 is a wedge-shaped block model It is provided while surrounding the joint of the body part 110 to which the first leg part 120 and the second leg part 130 are connected and may protrude outward.

The first reinforcing part 140 may be formed in a closed or semi-closed type.

The second reinforcing part 150 is provided on a part of the first leg part 120 and may protrude outward. The second reinforcing part 150 is provided with four “a”-shaped wedge-shaped block models symmetrically vertically and horizontally around the inflection point of the front center of the first leg part 120, respectively, and protrudes in a cross shape, One end of each block model in the shape of an “a”-shaped wedge is connected to the first reinforcing part 140.

The first and second reinforcing parts 140 and 150 relieve the concentration of tensile stress,

W ≤ E × 0.7 - (Equation 1)

h ≤ E × 0.8 - (Equation 2).

(However, W represents the width of the reinforcement part, h represents the height of the reinforcement part, and E represents the diameter (relatively small part) of the body part, respectively.)

Specifically, the reinforcing parts 140 and 150 are composed of one body part 110 and two leg parts 120 and 130 coupled to both ends of the body part 110, respectively, and are in the form of a structural span (SPAN), Structural reinforcement of the tensile stress (compressive strength of 1/9 to 1/13) according to the structural strength is increased and the interlocking function of each structure 100 can be strengthened. In particular, in the case of the first reinforcing part 140, an open type and a half open type may be formed.

The length of each of the legs 120 and 130 is L, and the angle between the axes of each of the legs 120 and 130 is α, and α may be 30° or more and 90° or less.

The length of the leg parts 120 and 130 coupled to each other at both ends of the structure 100 is 2Lsinα, which can be expressed as 2Lsinα≥ E × 4 (Equation 3).

Specifically, by determining the length of each of the leg portions 120 and 130 of the structure 100 in the same manner as described above, the optimal number of lengths of the leg portions 120 and 130 capable of relieving tensile stress can be experimentally calculated.

Hereinafter, if actual design examples using Equations 1, 2, and 3 are calculated and shown,

design 1

α = 65°

∴ L = 1,710/sin65° = 1,887 Y = 3420, (T = 3850)

∴ M + 1,887 × 2 × cos65° = 3,850 ∴ M = 2,255

(2 × L × sinα)/E ≥ 4.0

∴ E _4.0 = 855

design 2

α = 45°

∴ L = 1,710/sin45° = 2,418 Y = 3420, (T = 3850)

∴ M + 2,418 × cos45° × 2 = 3,850 ∴ M = 430

(2 × L × sinα)/E ≥ 4.0

∴ E _4.0 = 854

<Table 1>. Based on 20 Ts

Here, through experimental data, h = 0.8 times or less of E, and w may be 0.7 times or less of E.

<Table 2>. Size of protruding part (based on 20 Ts)

The water flow guide unit 160 is provided in the shape of a channel set by the second reinforcing unit 150 to induce the flow of water through the channel.

The water flow guide part 160 is formed as a cross-shaped channel by the second reinforcing part 150 around the inflection point of the front center of the first leg part 120 to induce the flow of running water.

Specifically, the water flow guide part 160 is a cross-shaped channel by the second reinforcement part 150 protruding in a cross shape around the inflection point, and inside the second reinforcement part Formed, it is possible to induce the flow of running water up, down, left and right to sofa and to prevent loss of soil. In addition, the water flow induction unit 160 allows the second reinforcing unit 150 to be formed in a symmetric or asymmetric cross shape around the inflection point and forms an asymmetric cross channel to guide the flow of water in an irregular direction while improving sofa performance. can be further improved.

The trunk portion 110 and the leg portions 120 and 130 may have circular or polygonal cross sections. Specifically, the body portion 110 and the leg portions 120 and 130 may have various polygonal shapes, such as hexagons or octagons, in addition to general circular shapes. It is manufactured in the shape of to improve the interlocking function between the structures 100 can enhance the stability during stacking with each other.

Specifically, when each of the leg parts 120 and 130 or the body part 110 has a general cylindrical shape or has a cross section of various polygonal shapes such as tetrahedron, hexahedron, octahedron, etc., the hydraulic stability, that is, the stability coefficient (K _D ) Since can be increased, in particular, when a plurality of structures 100 are loaded, the surface contact area of one structure 100 and an adjacent structure 100 is more increased in the case of a polygonal shape than in the case of a cylindrical shape, and a plurality of stacked structures 100 The flow is prevented while the 100 are interlocked with each other. The structure 100 having a polygonal shape as above increases the contact area between the interlocking structures 100 and minimizes the flow due to wave energy through smooth interlocking. can make it

The structure for preventing soil loss of river and coastal slopes according to an embodiment of the present invention may further include lifting protrusions 170.

The lifting protrusion 170 may be a shape tapered inward in a convex wedge shape at the lower end of the body portion 110 and the extension line of the axis of the body portion 110 and the leg portions 120 and 130 .

The lifting protrusion 170 is formed in a wedge-shaped block model, and interlocking can be strengthened by connecting upper and lower parts to each other. In addition, the lifting protrusion 170 formed on the first leg portion 120 protrudes in a straight line while being formed at the lower end of the first leg portion, and the lifting protrusion 170 formed on the second leg portion 130 is formed on the second leg portion. As it is formed at one end, it is possible to form a straight line in a state in which the central part is disconnected, and the disconnected part can be connected while passing through the traction rope, so that the structure 100 can be pulled more firmly.

Specifically, the structure 100 of the present invention is a convex model for improving the tensile stress concentration. In the case of the convex shape in which the tensile stress is concentrated, the structural stability is 1.8 times greater, and the interlocking function is excellent, so that the hydraulic The stability factor is large. Here, the structural strength analysis test results refer to the Midas structural analysis program. In addition, in the case of each of the first reinforcement parts 140, an open type and a half open type, or a closed type connected to each other may be formed.

In addition, the lifting protrusion 170 is connected to the lifting rope together with the first and second reinforcing parts 140 and 150 to enhance traction for lifting the structure. In particular, as shown in FIGS. 5 and 6 , the operator can strengthen the traction force while the rope spanning the lifting protrusion 170 passes through the inside and outside of the second reinforcing part 150 to perform a solid traction work.

In the sofa block structure according to an embodiment of the present invention, the first reinforcing part 140 and the second reinforcing part 150 can be manufactured to be inclined downward so that the internal cross-sectional area gradually increases from the outside to the inside, and the first leg part Protrudes outward along the longitudinal direction of 120 and along the circumference of the first leg portion 120 along the circumference of the first protruding jaw (not shown) provided with a predetermined distance from each other along the longitudinal direction of the second leg portion 130 Second protruding jaws (not shown) protruding outward and spaced apart from each other by a predetermined distance along the circumference of the second leg portion 130 may be further included.

In addition, the first reinforcing part 140 and the first protruding jaw are connected to each other, the second reinforcing part 150 and the second protruding jaw are connected to each other, and between the first protruding jaw and the adjacent first protruding jaw, a first protrusion is formed. A first auxiliary jaw (not shown) provided along the circumference of the leg portion 120 and spaced apart from the first reinforcing portion 140 in the longitudinal direction of the first leg portion 120 and a second protrusion adjacent to the second protruding jaw. A second auxiliary jaw (not shown) provided along the circumference of the second leg part 130 between the two protruding jaws and spaced apart from the second reinforcing part 150 in the longitudinal direction of the second leg part 130 can include more.

In addition, the first auxiliary jaw connects between the first protruding jaw and the adjacent first protruding jaw, and the second auxiliary jaw connects between the second protruding jaw and the adjacent second protruding jaw, and the first protruding jaw and the second protruding jaw The jaw may be inclined downward so that the inner cross-sectional area gradually increases from the outside to the inside, and the first auxiliary jaw and the second auxiliary jaw may be manufactured to be inclined downward so that the internal cross-sectional area gradually increases from the outside to the inside.

Additionally, in the structure 100 for preventing soil loss of river and coastal slopes according to an embodiment of the present invention, the first leg portion 120 may include at least one overpass barrier 121.

At this time, the overpass blocking jaw 121 is formed to protrude from the surface of the first leg portion 120 between the connection portion leading to the body portion 110 and one end spaced apart therefrom, and provided symmetrically from side to side "a" A plurality of structures 100 that prevent soil loss of rivers and coastal slopes according to an embodiment of the present invention by being formed to be connected approximately in the transverse direction between block models of a wedge shape, waves break each other in a state where a plurality of pieces are bitten and mounted As the progress to the top is blocked by contacting the barrier 121, the wave overpassing can be suppressed, and thus damage caused by the wave overpassing can be minimized.

Here, the overpass blocking jaw 121 may form a '∧' shape or a '∨' shape by bending the middle portion between one end and the other end in the longitudinal direction, but this is only an example and may be made in other shapes such as circular or polygonal shapes.

In addition, in the structure 100 for preventing soil loss of river and coastal slopes according to an embodiment of the present invention, the second leg portion 130 may include interlocking protrusions 131 formed at intervals.

At this time, the locking jaw 131 is formed to be connected in the longitudinal direction between the connection portion leading to the body portion and one end and the other end spaced apart therefrom, and is formed to protrude from the surface of the second leg portion 130, thereby providing the convenience of the present invention. When a plurality of structures 100 for preventing soil loss of river and coastal slopes according to an embodiment are bitten and held together, a part of any one of the plurality of structures 100 forms a gap between the second leg part 130 of the other one of the plurality of structures 100. Interlocking can be further improved by interlocking since mutual engagement can be strengthened by being caught between the locking jaws 131 formed while leaving each other.

6 is a flow chart of a sofa block structure mounting method according to another embodiment of the present invention, and FIG. 7 is a view showing how the structures are stacked and mounted.

As shown in FIGS. 6 to 7, in the method for mounting a structure for preventing soil loss using the above-described sofa block structure, the present invention includes a lifting protrusion forming step (S100), a structure positioning step (S200), a structure It may include a disposing step (S300) and a structure stacking step (S400).

The lifting protrusion forming step (S100) is composed of a body 110 made of concrete, leg parts 120 and 130, reinforcing parts 140 and 150, and water flow guide part 160 to prevent soil loss (100). ) is a step of forming at least one lifting protrusion 170 at a set position. Hereinafter, the shape of the reinforcing parts 140 and 150 and the calculation of the length of the leg parts 120 and 130 are the same as those described above for the structure 100 preventing soil loss. (Equations 1, 2 and 3 are used)

Specifically, the operator can lift the structure 100 by connecting a rope or the like to the lifting protrusions 170 tapering from the outside to the inside, and then move the structure 100 to an installation location. The interlocking function can be strengthened by stacking them so that they are engaged while matching them up and down.

The structure position moving step (S200) is a step of lifting the structure 100 by hanging a rope to the lifting protrusions 170 after passing through the lifting protrusion forming step (S100) and moving it to a set position.

The structure arrangement step (S300) is a step of arranging the water flow guide part 160 of the structure 100 whose position is being moved through the structure position movement step (S200) to face the front of the river and the coast.

The structure stacking step (S400) is a step of stacking and mounting the structure 100 by repeating the structure location moving step (S200) and the structure arrangement step (S300).

According to one embodiment of the present invention, it has sufficient stability against wave force when installed on the coast, etc., maintains structural strength against external force or its own weight, has effective curing and construction, and has a suitable porosity when laminated to attenuate wave energy. It is possible to obtain workability and stability when the structure 100 is mounted.

In addition, in the present invention, since the lifting protrusions 170 are installed in the form of convex wedges on the lower end of the body 110, the extension of the axis of the body 110, and the legs 120 and 130, the convex shape increases the strength of the structure 100. It can be used without damage, it is safe during construction, and it can be constructed with excellent cohesiveness. In the case of a large weight structure 100, the cost reduction effect is great due to safety accident prevention and shortening of construction period.

In addition, according to the present invention, the structural strength can be increased by 1.7 to 2.3 times or more compared to the existing structures, and the interlocking function can be improved.

Detailed descriptions of the preferred embodiments of the present invention disclosed as described above are provided to enable those skilled in the art to implement and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the scope of the present invention. For example, those skilled in the art may use each configuration described in the above-described embodiments in a way of combining each other. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as limiting in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that do not have an explicit citation relationship in the claims may be combined to form an embodiment or may be included as new claims by amendment after filing.

100: structure
110: torso
120: first leg
130: second leg
140: first reinforcement part
150: second reinforcement part
160: flow induction unit
170: lifting protrusion

Claims (3)

A body made of concrete, connected to one end of the body and extending in the longitudinal direction, and connected to a plurality of first leg parts disposed on a first plane and the other end of the body and extending in the length direction, respectively, the first A sofa block structure including a plurality of second legs disposed on a second plane perpendicular to the plane,
a first reinforcing part provided while surrounding the body part to which the first leg part and the second leg part are connected and protruding outward;
a second reinforcing part provided on a part of the first leg part and protruding outward; and
Including; is provided in the shape of a channel set by the second reinforcing unit and induces the flow of running water;
The first reinforcement part,
A wedge-shaped block model surrounds the joint of the body and protrudes in a closed form,
The second reinforcing part,
Four “a”-shaped wedge-shaped block models are provided symmetrically in the vertical and horizontal directions around the inflection point of the front center of the first leg portion, respectively, and are formed in a cross shape,
The water flow induction unit,
A cross-shaped channel is formed on the inside of the second reinforcement part by the four "a"-shaped wedge-shaped block models centered on the inflection point of the front center of the first leg portion to induce the flow of running water,
Each block model of the "a"-shaped wedge shape is connected to the first reinforcement part at one end,
The first leg portion and the second leg portion each further include a lifting protrusion tapered inward in a convex wedge shape,
The lifting protrusion formed on the first leg,
A wedge-shaped block model is formed at the lower end of the first leg and protrudes in a straight line,
The lifting protrusion formed on the second leg,
As a wedge-shaped block model is formed at one end of the second leg portion, the center portion is cut and formed in a straight line shape,
The lifting protrusions reinforce interlocking by connecting upper and lower parts to each other,
The first leg portion protrudes from the surface between the connection portion leading to the body portion and one end spaced apart therefrom, and is formed to be connected between the block model of the "a"-shaped wedge shape provided symmetrically from side to side At least Sofa block structure characterized in that it further comprises; one overpass blocking step. According to claim 1,
The second leg portion, doedoe disposed with a gap between the connection portion leading to the body portion and one end and the other end spaced apart therefrom, and a locking jaw protruding from the surface; sofa block structure characterized in that it further comprises. According to claim 1,
The overwave blocking jaw is a sofa block structure, characterized in that the middle portion between one end and the other end in the longitudinal direction is bent to form a '∧' shape or a '∨' shape.

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