KR20220167360A - Concrete retaining wall - Google Patents

Abstract

The present invention relates to a concrete retaining wall, wherein any one concrete retaining wall and an adjacent concrete retaining wall are doubly connected to each other so as to increase the binding force in connecting a plurality of concrete retaining walls. The concrete retaining wall of the present invention comprises a base member and a wall member extending from the base member, wherein the base member and the wall member have a first base member side part and a first wall member side part formed on one side thereof and a second base member side part and a second wall member side part formed on the other side thereof, a base member coupling groove and a wall member coupling projection are respectively formed in the first base member side part and the first wall member side part, and a base member coupling projection and a wall member coupling groove are respectively formed in the second base member side part and the second wall member side part, so that the concrete retaining wall is doubly connected to a base member and a wall member of an adjacent concrete retaining wall.

Description

Concrete retaining wall {Concrete retaining wall}

The present invention relates to a concrete retaining wall, and more particularly, to a concrete retaining wall in which one concrete retaining wall and an adjacent concrete retaining wall are double bound to each other so that the binding force is increased in the process of connecting a plurality of concrete retaining walls.

In general, a concrete retaining wall refers to a concrete structure for reinforcing a slope to prevent collapse of a slope in forming a road by cutting a mountain. In addition, the concrete retaining wall is also used to prevent flooding by constructing the wall side of the river, and the concrete retaining wall serves to fix the accumulated ground so that it does not collapse when building a house on a slope, raising the ground to form a flat land. do.

As the form of such a concrete retaining wall, most generally, one made of a wall member and a floor member that supports the wall member so that it can be supported without collapsing may be mentioned. Since soil rises and carries weight on the floor member, the wall member can be maintained without inclining to one side.

As an example of a concrete retaining wall, Korean Patent Registration No. 10-1407968 discloses a precast concrete panel for a retaining wall having a transversely bound structure and a transverse linearly variable structure, a slope reinforcement method using the same, and a waterway retaining wall construction method, which are , A precast concrete panel made of a precast concrete plate member to form a retaining wall supporting the soil on the back side, on one transverse side, a curved shear key convex portion protruding in the panel direction while having a convex curve shape is the precast concrete panel. It is formed long in the vertical direction, and on the other side of the opposite side, the curved shear key concave portion formed in a curved shape so that the curved shear key convex portion is inserted is formed long in the vertical direction, so that the neighboring precast concrete panels have the transverse side When arranged next to each other in the transverse direction so that they are continuous with each other, the curved shear key convex portion is fitted into the curved shear key concave portion, so that the transverse side surfaces are closely arranged adjacent to each other, but the curved surface of the curved shear key convex portion and the curved shear key concave portion It can be bent along, so that the angle successive in the transverse direction can be changed; The precast concrete panel is formed with a transverse horizontal through hole penetrating the panel in the transverse direction, so when a plurality of precast concrete panels are adjacent to each other in the transverse direction, a plurality of precast binding wires in the transverse horizontal through hole It has a structure that is disposed through the concrete panel and is integrally bound by fixing both ends to the transverse side, but the convex portion of the precast concrete panel in which the end of the binding wire is fixed or the concave portion of the curved shear key Fixing the binding wire A concave fixing groove is formed so that the end of the binding wire is fixed in the fixing groove so that the curved end does not protrude to the surface of the convex portion of the curved shear key or the concave portion of the curved shear key; It relates to a precast concrete panel for a retaining wall, characterized in that a frontal through hole is formed through which the end of the earth anchor is fixed.

However, the conventional precast concrete panels for retaining walls of the transverse fastening structure and the transverse linear variable structure have convex portions and concave portions formed in only one direction, so the strength to withstand the load of soil is weak. To compensate for this, There were inconvenient problems in construction, such as the need to connect each concrete panel with a binding wire. Accordingly, the need for a concrete retaining wall of a new structure having a binding force comparable to that without the construction process of connecting with a binding wire has increased.

Republic of Korea Patent Registration No. 10-1407968 (2014.06.17. Announcement), "Precast concrete panel for retaining wall with lateral binding structure and horizontal linear variable structure, slope reinforcement method and waterway retaining wall construction method using the same"

In order to solve the above problems, the present invention has a floor member coupling groove and a wall member coupling protrusion formed on the side of a concrete retaining wall, and a floor member coupling protrusion and a wall member coupling groove formed on the side of an adjacent concrete retaining wall, so that each other is doubled. An object of the present invention is to provide a concrete retaining wall in which the binding force is increased in the process of connecting a plurality of concrete retaining walls by being bound by.

In order to achieve the above object, the present invention consists of a floor member and a wall member extending from the floor member, and a first floor member side portion and a first wall member side portion are formed on one side of the floor member and the wall member. And, on the other side, a second floor member side surface portion and a second wall member side portion are formed, and a floor member coupling groove portion and a wall member recombination protrusion are formed on the first floor member side portion and the first wall member side portion, respectively. A floor member coupling protrusion and a wall member coupling groove are formed on the side surface of the floor member and the side portion of the second wall member, respectively, to provide a concrete retaining wall characterized in that it is double bound to the floor member and wall member of the adjacent concrete retaining wall.

In addition, the floor member coupling groove and the wall member coupling protrusion are formed on the same side of one side of the floor member and the wall member, and the floor member coupling protrusion and the wall member coupling groove are formed on the same side of the other side of the floor member and the wall member. to be characterized

In addition, it is characterized in that a plurality of frictional force increasing grooves are formed on the bottom surface of the floor member.

In addition, it is characterized in that the floor member perforated pipe groove is formed on the upper surface of the floor member in which the perforated pipe can be installed.

In addition, it is characterized in that the wall member perforated pipe groove is formed on the upper surface of the wall member in which the perforated pipe can be installed.

In the concrete retaining wall according to the present invention, a floor member coupling groove and a wall member coupling protrusion are formed on the side of one concrete retaining wall, and a floor member coupling protrusion and a wall member coupling groove are formed on the side of an adjacent concrete retaining wall, so that they are double bound to each other This has the effect of increasing the binding force in the process of connecting a plurality of concrete retaining walls.

1 and 2 are perspective views showing the basic structure of a concrete retaining wall.
3 and 4 are perspective views of a concrete retaining wall according to an embodiment of the present invention.
5 is a top view of a concrete retaining wall according to an embodiment of the present invention.
6 is a bottom view of a concrete retaining wall according to an embodiment of the present invention.
7 is an exemplary view showing a state in which concrete retaining walls are bound to each other according to an embodiment of the present invention.
8 is a perspective view of a concrete retaining wall according to another embodiment of the present invention.

The detailed description of the present invention below refers to the accompanying drawings shown as examples of embodiments in which the present invention can be practiced. These embodiments are described in detail so that those skilled in the art will be able to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in one embodiment in another embodiment without departing from the spirit and scope of the invention. Additionally, it should be understood that the location or arrangement of individual components within each described embodiment may be changed without departing from the spirit and scope of the invention.

Accordingly, the detailed description set forth below is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all equivalents as claimed by those claims. Like reference numbers in the drawings indicate the same or similar function throughout the various aspects.

The terms used in the present invention have been selected from general terms that are currently widely used as much as possible while considering the functions in the present invention, but these may vary depending on the intention of a person skilled in the art or precedent, the emergence of new technologies, and the like. In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, not simply the name of the term.

In the present invention, when a part "includes" a certain component, it means that it may further include other components, not excluding other components, unless otherwise stated.

Hereinafter, the concrete retaining wall according to the present invention will be described in detail with reference to the accompanying drawings.

The concrete retaining wall according to the present invention is composed of a floor member 100 and a wall member 200 extending from the floor member 100, and one side of the floor member 100 and the wall member 200 has a first The bottom member side portion 110 and the first wall member side portion 210 are formed, the second bottom member side portion 120 and the second wall member side portion 220 are formed on the other side, and the first bottom member side portion ( 110) and the first wall member side portion 210, the floor member coupling groove 111 and the wall member coupling protrusion 211 are formed, respectively, and the second bottom member side portion 120 and the second wall member side portion 220 A floor member coupling protrusion 121 and a wall member coupling groove 221 are formed, respectively, characterized in that they are double bound to the floor member 100 and the wall member 200 of the adjacent concrete retaining wall.

As shown in FIGS. 1 and 2 , the basic structure of the concrete retaining wall according to the present invention is composed of a floor member 100 and a wall member 200 extending from the floor member 100 .

The floor member 100 and the wall member 200 are preferably molded using concrete, and reinforcing bars holding the structures of the floor member 100 and the wall member 200 are positioned inside.

The shape of the floor member 100 and the wall member 200 is most preferably a rectangular parallelepiped shape, but this is not particularly limited.

On the other hand, as shown in Figure 3, the wall member 200 is formed in the drainage hole 202 to discharge the water of the soil accumulated on the concrete retaining wall. In addition, the drain hole 202 may be used to transport the concrete retaining wall by tying it with a wire during construction of the concrete retaining wall. A PVC pipe or the like may be formed in the drain hole 202 .

The wall member 200 is preferably formed extending upward from the upper surface of the floor member 100.

Preferably, the wall member 200 starts to extend from either end of the floor member 100. For example, it is preferable that the floor member 100 and the wall member 200 are connected to each other to have an 'L' shape.

This is to load the earth and sand on the floor member 100, which is generally piled up on the upper surface of the floor member 100 in the process of constructing a concrete retaining wall. This is because, when formed at one end, the area in which soil can be piled on the upper part of the floor member 100 is widened, so that the construction of the concrete retaining wall can be stably performed.

According to the process of constructing the concrete retaining wall, when the floor member 100 is positioned to face the cut surface of the slope or river and soil is piled up on the floor member 100, the wall member 200 is exposed to the outside.

Meanwhile, as shown in FIG. 1 , a first bottom member side portion 110 is formed on one side of the bottom member 100 .

In addition, on one side of the wall member 200, as shown in FIG. 1, a first wall member side portion 210 is formed.

The first floor member side portion 110 and the first wall member side portion 210 are formed on the same surface of the concrete retaining wall.

In addition, as shown in FIG. 2, the second bottom member side portion 120 is formed on the other side of the floor member 100, that is, on the opposite side of the first bottom member side portion 110.

In addition, the second wall member side portion 220 is formed on the other side of the wall member 200, that is, on the opposite side of the first wall member side portion 210.

The second floor member side portion 120 and the second wall member side portion 220 are formed on the same surface of the concrete retaining wall.

More specifically, when viewed from a position where the wall member 200 is exposed to the outside by constructing a concrete retaining wall, that is, the first floor member side portion 110 And the first wall member side portion 210 may be formed on the right side of the concrete retaining wall, and the second bottom member side portion 120 and the second wall member side portion 220 may be formed on the left side of the concrete retaining wall .

Based on the basic structure as described above, the configuration of the concrete retaining wall according to the present invention will be described in detail.

3 and 4 are perspective views of a concrete retaining wall according to an embodiment of the present invention, Figure 5 is a top view of the concrete retaining wall according to an embodiment of the present invention, Figure 6 is a bottom view of the concrete retaining wall according to an embodiment of the present invention to be.

As shown in FIGS. 3 to 6, the concrete retaining wall according to the embodiment of the present invention has protrusions and grooves for binding between one concrete retaining wall and another adjacent concrete retaining wall along each side.

First, as shown in FIGS. 3 and 4, a floor member coupling groove 111 and a wall member coupling protrusion 211 are formed on the first floor member side portion 110 and the first wall member side portion 210, respectively. do.

That is, the bottom member coupling groove 111 is formed on the first floor member side surface portion 110, and the wall member coupling protrusion 211 is formed on the first wall member side surface portion 210.

The bottom member coupling groove 111 is most preferably formed on the side surface of the floor member 100 on which soil is piled up.

In addition, it is preferable that the wall member recombination protrusion 211 extends from the bottom end to the upper end along the longitudinal direction of the first wall member side portion 210 most appropriately.

In addition, the second floor member side surface portion 120 and the second wall member side surface portion 220 are formed with floor member coupling protrusions 121 and wall member coupling grooves 221, respectively.

That is, the bottom member coupling protrusion 121 is formed on the second floor member side surface portion 120, and the wall member coupling groove portion 221 is formed on the second wall member side surface portion 220.

The bottom member coupling protrusion 121 is preferably formed on the side surface of the floor member 100 on which soil is piled up. In addition, it is preferable that the wall member recombination groove 221 extends from the bottom end to the upper end along the longitudinal direction of the second wall member side portion 220 most appropriately.

To summarize this, the floor member coupling groove 111 and the wall member coupling protrusion 121 are formed on the same side of one side of the floor member 100 and the wall member 200, and the floor member coupling protrusion 211 and the wall member The member coupling groove 221 may be preferably formed on the same surface on the other side of the floor member 100 and the wall member 200.

More specifically, when viewed from a position where the wall member 200 is exposed to the outside by constructing a concrete retaining wall, that is, on the other side of the accumulation of soil on the top of the floor member 100, the bottom member coupling groove 111 and The wall member coupling protrusion 121 is formed on the right side of the floor member 100 and the wall member 200, the floor member coupling protrusion 211 and the wall member coupling groove 221 are the bottom member 100 and the wall member ( 200) would be most appropriate.

However, this is not limited thereto, and grooves and protrusions are formed on the same side of one side of the floor member 100 and the wall member 200 at the same time, and on the same side of the other side of the floor member 100 and the wall member 200. If each groove and protrusion are formed at the same time, all various implementations will be possible.

On the other hand, it is preferable that the shape of the floor member coupling groove 111 and the wall member coupling protrusion 211, the bottom member coupling protrusion 121 and the wall member coupling groove 221 are angular. It doesn't matter if they are formed to be round, but if they are formed to be angled, they will be able to withstand more soil loads. When the floor member coupling groove 111 and the wall member coupling protrusion 211 and the floor member coupling protrusion 121 and the wall member coupling groove 221 are curved surfaces, adjacent concrete retaining walls may slide or flow with each other by external force, but , In the case of forming an angle, the angled parts can be fixed so that they do not slip each other while being engaged.

In addition, it is preferable that the bottom member coupling groove 111 and the floor member coupling protrusion 121 are formed in a shape corresponding to each other, so that the sum matches each other. This is because the floor member coupling groove 111 of one concrete retaining wall is bound to the floor member coupling protrusion 121 of the adjacent concrete retaining wall, and if they have a corresponding shape, they can better withstand the load of soil on the hillside because there is

In addition, it is preferable that the wall member recombination protrusion 211 and the wall member recombination groove 221 are also formed in a shape corresponding to each other, so that the sum matches each other. This is because the wall member recombination protrusion 211 of one concrete retaining wall is bound to the wall member recombination groove 221 of the adjacent concrete retaining wall, and if they have a corresponding shape, they can better withstand the load of soil on the hillside. to be.

Through the floor member coupling groove 111, the floor member coupling protrusion 121, the wall member coupling protrusion 211, and the wall member coupling groove 221, the concrete retaining wall according to the present invention is combined with other adjacent concrete retaining walls. The relationship will be described in more detail with reference to the accompanying drawings.

7 is an exemplary view showing a state in which concrete retaining walls are bound to each other according to an embodiment of the present invention.

As shown in FIG. 7, the concrete retaining wall according to the present invention can be bound to another adjacent concrete retaining wall, and both are concrete retaining walls having the same structure.

First, the wall member recombination groove 221 formed in the wall member 200 of the concrete retaining wall according to the present invention is coupled with the wall member recombination protrusion 211' formed in the wall member 200' of the adjacent concrete retaining wall, At the same time, the floor member coupling grooves 111' formed in the floor member 100' of the adjacent concrete retaining wall are bound to the floor member coupling protrusion 121 formed on the floor member 100 of the concrete retaining wall according to the present invention, so that the double can be bound with

In this way, the wall member 200' and the floor member 100' of another concrete retaining wall adjacent to the wall member 200'' and the floor member 100'' of another concrete retaining wall, and the other concrete retaining wall A long barrier can be constructed by continuously connecting the wall member 200''' and the floor member 100''', and the concrete retaining wall according to the present invention is one component forming the long barrier.

On the other hand, the bottom member 100 of the concrete retaining wall disposed at the bent portion of the concrete retaining wall according to the present invention may not have a rectangular parallelepiped shape, but may have a tapered shape at one side. This is to ensure that when the barrier is built with a concrete retaining wall, it is naturally connected to other concrete retaining walls adjacent to the curved section. If one side of the floor member 100 has a tapered shape, it is easy to adjust the angle of the bent part when the barrier is stacked in a row with a plurality of concrete retaining walls.

Hereinafter, a concrete retaining wall according to another embodiment of the present invention will be described in detail.

8 is a perspective view of a concrete retaining wall according to another embodiment of the present invention.

As shown in FIG. 8, a concrete retaining wall according to another embodiment of the present invention is composed of a floor member 100 and a wall member 200 extending from the floor member 100, but the floor member 100 ) And the first floor member side surface portion 110 and the first wall member side portion 210 are formed on one side of the wall member 200, and the second floor member side portion 120 and the second wall member side surface portion ( 220) is formed, and a floor member coupling groove 111 and a wall member coupling protrusion 211 are formed on the first floor member side portion 110 and the first wall member side portion 210, respectively, and the second floor member A floor member coupling protrusion 121 and a wall member coupling groove 221 are formed on the side portion 120 and the second wall member side portion 220, respectively, to the floor member 100 and the wall member 200 of the adjacent concrete retaining wall. It is double bound, but a plurality of friction increasing grooves 102 are formed on the bottom surface of the floor member 100, and the floor member perforated pipe groove in which a perforated pipe can be installed on the upper surface of the floor member 100. 104 is formed on the upper surface of the wall member 200, the wall member perforated pipe groove 204 into which the perforated pipe can be installed.

The frictional force increasing groove 102 is formed on the bottom surface of the floor member 100, and is formed from the first floor member side surface portion 110 and extends long to the second floor member side surface portion 120.

The frictional force increasing groove 102 is formed to increase the frictional force with the floor on which the concrete retaining wall is installed, and soil or stones are introduced into the frictional force increasing groove to widen the contact area with the floor. It is possible to alleviate the phenomenon of slipping due to the load of

For example, the frictional force increasing groove 102 is to prevent the concrete retaining wall from slipping by increasing the frictional force with the floor in a similar principle to protrusions or grooves formed on the bottom of a shoe.

Soil may flow into the frictional force increasing groove 102 to further increase the frictional force. In order to facilitate soil inflow, both ends of the frictional force increasing groove 102 may be tapered upward.

On the other hand, the concrete retaining wall according to the present invention may be formed with a floor member perforated pipe groove 104 and a wall member perforated pipe groove 204 for discharge of groundwater descending a hillside.

Here, the perforated pipe refers to a pipe formed in which fine holes are formed on the outer circumferential surface of the pipe to prevent the inflow of soil and to allow only the inflow of water, so that groundwater can be discharged to the outside.

The perforated pipe groove 104 of the floor member is preferably formed on the upper surface of the floor member 100.

The floor member perforated pipe groove 104 is formed on the upper surface of the floor member 100 and extends from the first floor member side surface portion 110 to the second bottom member side surface portion 120.

Through this, the perforated pipe groove 104 of the floor member is matched and connected to the perforated pipe groove 104 of the floor member of another adjacent concrete retaining wall.

Therefore, the perforated pipe groove 104 of the floor member continues to extend in the longitudinal direction in the long concrete barrier composed of a plurality of concrete retaining walls, so that a long perforated pipe can be installed in the perforated pipe groove 104 of the floor member, and the water inside the soil It flows into the perforated pipe installed in the perforated pipe groove 104 of the bottom member of the concrete retaining wall, flows inside the perforated pipe, and is discharged to the outside at both ends of the long concrete barrier.

Meanwhile, a perforated pipe groove 204 in which a perforated pipe can be installed may also be formed on the upper surface of the wall member 200.

The wall member perforated pipe groove 204 is formed on the upper surface of the wall member 200 and extends from the first wall member side portion 210 to the second wall member side portion 220.

Through this, the wall member perforated pipe groove 204 coincides with the wall member perforated pipe groove 204 of another adjacent concrete retaining wall.

A perforated pipe is installed in the perforated pipe groove 204 of the wall member to absorb water coming down the hillside, and as the perforated pipe installed in the perforated pipe groove 204 of the wall member absorbs water, the soil sand mixed with the water and floating down The flow also stops, which in turn alleviates the messy roads caused by hillside mud overflowing the roads.

Like the floor member perforated pipe groove 104, the wall member perforated pipe groove 204 also continues to extend in the longitudinal direction in the long concrete barrier composed of a plurality of concrete retaining walls, so that the long perforated pipe in the wall member perforated pipe groove 204 It can be installed, and the water coming down the hillside is introduced into the perforated pipe installed in the wall member perforated pipe groove 204 of the concrete retaining wall, flows inside the perforated pipe, and is discharged to the outside at both ends of the long concrete barrier.

Hereinafter, the effect of the concrete retaining wall according to the present invention will be described through the following examples, comparative examples and experimental examples.

Example 1. Fabrication of a concrete retaining wall according to an embodiment of the present invention.

Consisting of a floor member and a wall member extending from the floor member, a first floor member side portion and a first wall member side portion are formed on one side of the floor member and the wall member, and a second floor member side portion and a second floor member side portion are formed on the other side. A second wall member side portion is formed, a bottom member coupling groove portion and a wall member coupling protrusion are formed on the first floor member side portion and the first wall member side portion, respectively, and the second floor member side portion and the second wall member side portion are formed with a floor. A number of concrete retaining walls were manufactured so that member coupling protrusions and wall member coupling grooves were formed, respectively.

Comparative Example 1. Manufacture of a concrete retaining wall in which only wall member recombination grooves and wall member recombination protrusions are formed.

It consists of a floor member and a wall member extending from the floor member, a first wall member side surface portion is formed on one side of the wall member, and a second wall member side surface portion is formed on the other side, and the first wall member side surface portion is formed. A plurality of concrete retaining walls were manufactured so that wall member recombination protrusions were formed, and wall member recombination grooves were formed on the side of the second wall member.

Comparative Example 2. Manufacturing of a concrete retaining wall formed with only floor member coupling grooves and floor member coupling protrusions.

Consisting of a floor member and a wall member extending from the floor member, a first floor member side surface portion is formed on one side of the floor member, and a second floor member side surface portion is formed on the other side, and the first floor member side surface portion is formed. A plurality of concrete retaining walls were manufactured so that bottom member coupling grooves were formed, and floor member coupling protrusions were formed on the side of the second floor member.

Comparative Example 3. Manufacturing of a concrete retaining wall so that the floor member coupling groove and the wall member coupling groove are formed on the same surface, and the floor member coupling protrusion and the wall member coupling protrusion are formed on the same side.

Consisting of a floor member and a wall member extending from the floor member, a first floor member side portion and a first wall member side portion are formed on one side of the floor member and the wall member, and a second floor member side portion and a second floor member side portion are formed on the other side. A second wall member side portion is formed, a floor member coupling protrusion and a wall member coupling protrusion are formed on the first floor member side portion and the first wall member side portion, respectively, and the second bottom member side portion and the second wall member side portion are formed with a floor. A number of concrete retaining walls were manufactured so that member coupling grooves and wall member recombination grooves were formed, respectively.

Experimental Example 1. Measurement of the time when the concrete retaining wall spreads according to the load of soil

For the concrete retaining walls of Example 1 and Comparative Examples 1 to 3, the time at which the concrete retaining walls spread according to the load of soil was measured.

Three concrete retaining walls of Examples 1 to 2 and Comparative Examples 1 to 3 were connected to each other to construct a concrete barrier, and soil was piled up to extend from the end of the wall member to the end of the floor member. Then, a force was applied to the retaining wall in the direction of 45°, and the force applied was gradually increased by 0.1 ton to measure the load that widened the gap between the concrete retaining walls.

Load (t) opening gaps between concrete retaining walls

Example 1

3.8
Comparative Example 1

1.4
Comparative Example 2

1.6
Comparative Example 3

3.2

As a result, the barriers connected to the concrete retaining walls of Example 1 had the highest load at 3.8 t to widen the gap between the concrete retaining walls. Comparative Example 1 in which only wall members were connected and Comparative Example 2 in which only floor members were connected showed significantly lower values of 1.4t and 1.6t, respectively. Comparative Example 3, in which the part was formed, endured the load better than Comparative Example 1 and Comparative Example 2, but did not reach the value of Example 1. As the member and the wall member are formed on the same surface on one side, and the floor member coupling protrusion and the wall member coupling groove are formed on the same surface on the other side of the floor member and the wall member, the wall member and the floor member are grooves and protrusions in different directions, respectively. It can be inferred that it is the result of being bound by .

That is, a concrete retaining wall and an adjacent concrete retaining wall are bound to each other. At this time, the protrusion of one concrete retaining wall is inserted into the groove of the adjacent concrete retaining wall, and at the same time, the protrusion of the adjacent concrete retaining wall is inserted into the groove of the concrete retaining wall As it is double bound in different directions, the binding force can be further increased.

Therefore, the present invention has a floor member coupling groove and a wall member coupling protrusion formed on the side of a concrete retaining wall, and a floor member coupling protrusion and a wall member recombination groove formed on the side of an adjacent concrete retaining wall, so that a plurality of In the process of connecting concrete retaining walls, it is specified that a concrete retaining wall with a new structure was invented to increase the coherence between each concrete retaining wall.

Although the present invention has been described with the accompanying drawings, this is only one example of various embodiments including the gist of the present invention, and is intended to be easily practiced by those skilled in the art. As an object, it is clear that the present invention is not limited to the embodiments described above. Therefore, the protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range by change, substitution, substitution, etc. will be included In addition, it is clear that some configurations in the drawings are provided exaggerated or reduced than the actual ones to more clearly explain the configuration.

100: bottom member 102: frictional force increasing groove
104: bottom member perforated pipe groove 110: first bottom member side portion
111: bottom member coupling groove portion 120: second bottom member side portion
121: floor member coupling protrusion 200: wall member
202: drain hole 204: wall member perforated pipe groove
210: first wall member side portion 211: wall member recombination protrusion
220: second wall member side portion 221: wall member recombination groove

Claims (1)

Consisting of a floor member and a wall member extending from the floor member,
When a concrete retaining wall is constructed and viewed from a position where the wall member 200 is exposed to the outside, a first floor member side portion and a first wall member side portion are formed on the right side of the floor member and the wall member, and the second floor member is formed on the left side A side portion and a second wall member side portion are formed,
A bottom member coupling groove 111 is formed on the first floor member side surface portion 110, and a wall member coupling protrusion 211 is formed on the first wall member side surface portion 210 in the longitudinal direction of the first wall member side surface portion 210. It extends from the bottom end to the upper end along the bottom end, and the bottom member coupling protrusion 121 is formed on the second floor member side surface portion 120, and the wall member coupling groove portion 221 is formed on the second wall member side portion 220. Is formed extending from the bottom end to the upper end along the longitudinal direction of the second wall member side portion 220, and is double bound to the floor member and wall member of the adjacent concrete retaining wall,
The floor member coupling groove and the wall member coupling protrusion are formed on the same side of one side of the floor member and the wall member, and the floor member coupling protrusion and the wall member coupling groove are formed on the same side of the other side of the floor member and the wall member,
A plurality of frictional force increasing grooves 102 are formed on the bottom surface of the floor member 100, both ends of the frictional force increasing grooves 102 are tapered upward,
On the upper surface of the floor member 100, a floor member perforated pipe groove 104 in which a perforated pipe can be installed is formed,
A wall member perforated pipe groove 204 in which a perforated pipe can be installed is formed on the upper surface of the wall member 200, and the wall member perforated pipe groove 204 is formed from the first wall member side surface portion 210 to the second wall member side surface portion ( 220), characterized in that the concrete retaining wall.

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