JP2504502Y2 - Retaining wall with decoration - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention mainly relates to a retaining wall with a decorative material which is used for preventing landslides on the side of a road.

[Prior Art] Conventionally, in forest roads and the like in which landslides occur frequently, a concrete structure is buried in the ground to form a retaining wall.

As such a retaining wall, one having a natural appearance such as a stone wall by joining an appropriate decorative material on the surface is preferably used.

Conventionally, as a means for joining such a decorative material to the surface of a concrete structure, after the concrete has been poured, while the concrete is not yet hardened, gravel, rubble, tiles, etc. are stuck on the concrete surface to harden the concrete. At the same time
A method of joining and integrating these is adopted.

[Problems to be solved by the invention] However, in the retaining wall manufactured by such a method, since the decorative material is bonded only by the adhesive force of the concrete itself, the adhesive strength is long-term. There was a problem that I could not hold it. Therefore, the adhesive force is often reduced by the influence of heat or external force applied from the outside, and the peeling phenomenon of the decorative material often occurs.

In addition, since it depends only on the adhesive strength of concrete itself, it can be applied to relatively small decorative materials such as gravel, rubble, tiles, etc., but is not applicable to large decorative materials. there were.

Further, there is also a disadvantage that after the concrete is hardened, the effluent of the concrete (the bleeding of the binder in the concrete) is exposed, which causes stains on the decorative material.

The present invention has been made in view of the above circumstances,
It is an object of the present invention to provide a retaining wall with a decorative material that can maintain high adhesive strength over a long period of time and can be applied to large-sized decorative materials.

[Means for Solving the Problems] The present invention mainly comprises a concrete structure that constitutes the main body of a retaining wall and a decorative material that is joined to the surface of the concrete structure. Inside the dent formed on the surface of the body, the dry area is provided between the concrete structure and the concrete structure, and the back surface of the decorative material and the surface of the concrete structure are expanded and contracted in the thickness direction of the dry area. By means of a spring metal member that is arranged so that it is possible, an insert that is connected to one end of the spring metal member and that is embedded inside the decorative material, and an anchor bolt that is connected to the other end of the spring metal member and that is driven into the concrete structure. The solution means is that the upper and lower ends of the decorative material are connected to each other and are joined to the concrete structure through elastic members.

[Operation] According to the retaining wall with a decorative material of the present invention, the decorative material is arranged on the surface of the concrete structure with a dry area therebetween.
Since it has a heavy structure, it is unlikely to be affected by external heat or external force, and the adhesive strength of the retaining wall can be maintained for a long period of time.

Further, since the back surface of the decorative material and the front surface of the concrete structure are connected to each other through the spring metal member that is arranged so as to be capable of expanding and contracting in the thickness direction of the dry area, it is possible to prevent horizontal force applied from the outside. The horizontal expansion and contraction of the spring hardware absorbs the horizontal force, and vibration can be isolated.

Further, since the upper end portion and the lower end portion of the decorative material are respectively connected to the concrete structure through the elastic member, the vertical force is exerted by the elastic force of the elastic member against the vibration applied in the vertical direction. Can be offset and dampened.

[Examples] Hereinafter, the present invention will be described with reference to the drawings and examples.

1 and 2 show an embodiment of a retaining wall with a decorative material of the present invention, in which reference numeral 1 is a retaining wall with a decorative material. The decorative retaining wall 1 is mainly composed mainly of a concrete structure 2 that constitutes the main body of the retaining wall and a decorative material 3 that is joined to the surface of the concrete structure 2.

The concrete structure 2 is roughly composed of a base portion 2a which is embedded in the natural ground W and a wall portion 2b which stands on the base portion 2a in a wall shape and supports the natural ground W. Several joint metal fittings 4, 4, ... Are provided on the side surfaces of the base portion 2a and the wall portion 2b. These joint hardware 4 are arranged substantially flush with the side surfaces of the base portion 2a and the wall portion 2b, and a bolt hole 5 is provided at the substantially central portion thereof.
have. Then, these joint hardware 4 are provided on the side surfaces of the adjacent concrete structures 2
In a state of being combined with each other, by performing bolt fastening work from the inside of the recess 6 provided at a position facing the side surface of the base portion 2a or the wall portion 2b, each retaining wall 1, 1 ... Has become.

In addition, in this concrete structure 2, suitable drainage holes 7 and 8 are respectively provided at predetermined positions of the wall portion 2b and the base portion 2a.
However, it is arranged so as to descend from the back surface side to the front surface side at a predetermined inclination angle, and it is considered so as to be able to cope with the eflation of the concrete (exudation of the binder in the concrete).

The surface of the wall portion 2b of the concrete structure 2 is provided with a dent portion 9 having a predetermined depth and opening on the surface and both side surfaces. Within the dented portion 9, a predetermined gap (dry area 1) with the surface of the concrete structure 2 is formed.
The decorative material 3 is provided at a distance of 0).

The decorative material 3 has a substantially rectangular plate shape made of a material such as a stone material, and the surface thereof is provided with a surface decoration 11 for giving a natural appearance such as stone of a stone wall.

The dry area 10 is filled with a heat insulating material 12 such as styrofoam. The heat insulating material 12 has a decorative material 3
A material having elasticity so as to reduce the temperature gradient of the concrete structure 2 and to change the dimensions of the dry area 10 in the thickness direction and the height direction is used.

The back surface of the decorative material 3 and the wall portion 2b of the concrete structure 2
The surface of the spring metal 13 is arranged so as to be capable of expanding and contracting in the thickness direction of the dry area 10, the insert 14 connected to one end of the spring metal 13 and embedded inside the decorative material 3, and the spring metal 13 Are connected to each other by an anchor bolt 15 which is connected to the other end of the concrete structure 2 and is driven into the concrete structure 2.

The spring metal piece 13 is formed by bending a metal plate in a stepwise manner with a step substantially equal to the thickness of the dry area 10. Both ends 13a and 13b of the metal piece are formed on the back surface of the decorative material 3 and the concrete structure, respectively. It is arranged in contact with the surface of the wall portion 2b of the body 2. And this spring hardware 13
Since the bending angles of the two bent portions can be changed, the dry area 10 can be expanded and contracted in the thickness direction. Also, both ends 13a, 13b of the spring hardware 13
Spacers 16 and 16 are provided on the respective inner surfaces of the. By providing the spacers 16 and 16 in this manner, it is considered that the dry area 10 can secure a certain amount of space when the spring hardware 13 contracts in the thickness direction of the dry area 10.

An insert 14 is joined to one end 13a of the spring metal piece 13. The insert 14 is a metal fitting for connection, and is replaceably fitted in a recess 17 provided on the back surface side of the decorative material 3.

An anchor bolt 15 is joined to the other end 13b of the spring metal piece 13. The anchor bolt 15 has a tip portion 15a bent upward, and a side surface of the tip portion 15a is buried along the back surface of the wall portion 2b of the concrete structure 2 to form a concrete dice 18 It is driven into the wall portion 2b in a state of being applied to the wall.

The upper end of the decorative material 3 is joined to the concrete structure 2 via an elastic member 19. The elastic member 19 has a round bar shape with a circular cross section made of an elastic material such as rubber, and is provided in a groove 20 formed on the upper surface of the recess 9 provided in the wall 2b of the concrete structure 2. The upper half is housed and the lower surface is attached in contact with the upper end surface of the decorative material 3.

Further, the lower end portion of the decorative material 3 is also joined to the concrete structure 2 via the similar elastic member 21. An L-shaped supporting metal member 22 is attached to the dented portion 9 of the concrete structure 2 substantially along the lower surface and the surface thereof, and the round bar-shaped elastic member 21 is arranged on the supporting metal member 22 and It is attached with its upper surface abutting on the lower surface of the decorative material 3.

Next, an example of a method of manufacturing the retaining wall with a decorative material of the present embodiment will be described.

First, the concrete structure 2 having the above-described configuration, which includes the base portion 2a and the wall portion 2b, is placed. At the time of driving, a dent portion 9 is provided on the surface of the concrete structure 2, and an anchor bolt 15 is driven at a predetermined position in the concrete structure 2 so that the tip of the dent portion 9 slightly projects from the dent portion 9. .

Next, a heat insulating material 12 is arranged on the surface of the concrete structure 2 to secure a space which becomes the dry area 10, and the spring metal piece 13 having the above-mentioned configuration is joined to the tip of the anchor bolt 15 protruding from the surface of the concrete structure 2. To do.

On the other hand, prepare a decorative material 3 formed of an appropriate material,
A recess 17 for an insert is provided on the back surface thereof, and a surface decoration 11 for giving an appropriate appearance is provided on the front surface.

The insert 14 is fitted and fixed in the recess 17 provided on the back surface of the decorative material 3, and
14 is joined to the end portion 13a of the spring metal 13 so that the decorative material 3 is joined to the concrete structure 2 across the dry area 10.

In addition, on the upper surface and the lower surface of the dent portion 9 of the concrete structure 2, the elastic member 1
9, 21 are arranged, and the upper end and the lower end of the decorative material 3 are joined to the concrete structure 2 through the elastic members 19, 21, respectively.

Then, the retaining wall with decorative material 1 manufactured in this way
To the site, the side surfaces of each retaining wall 1 are joined by the joint hardware 4, the base 2a of the concrete structure 2 is buried in the ground W, and the back surface of the wall 2b is joined to the ground W to attach it. .

As described above, according to the retaining wall with a decorative material of the present embodiment, the concrete structure 2 and the decorative material 3 arranged on the concrete structure 2 with a predetermined dry area 10 therebetween are provided. Since it has a heavy structure, it is less likely to be affected by external heat and external force, and the adhesive strength can be maintained for a long period of time. Therefore, it is possible to avoid inconveniences such as the retaining wall 1 peeling off from the ground W, and to prevent the appearance of Eflo (exudation of the binder in the concrete) to prevent the decorative material from becoming dirty. be able to.

In addition, since the back surface of the decorative material 3 and the front surface of the concrete structure 2 are connected to each other via the spring metal 13 that is arranged so as to be able to expand and contract in the thickness direction of the dry area 10, a horizontal force applied from the outside is applied. On the other hand, the spring metal 13 expands and contracts in the horizontal direction to absorb the horizontal force, and vibration can be isolated. Further, since the upper end portion and the lower end portion of the decorative material 3 are connected to the concrete structure 2 through the elastic members 19 and 21, respectively, the elastic members 19 and 21 are resistant to the vibration applied in the vertical direction. The vertical deformation can be offset and attenuated by the elastic deformation of, and vibration isolation can be achieved. Since the vibration isolating structure is provided for both horizontal force and vertical force as described above, it is possible to sufficiently cope with vibrations and earthquakes caused by running of the automobile and maintain stability.

In addition, in the above-described embodiment, the insert 14 attached to the one end 13a of the spring metal 13 has a recess formed in the decorative material 3.
Since it is configured to be replaceable inside 17,
When the decorative material 3 is damaged or damaged, the decorative material 3 can be easily replaced by removing the insert 14. Therefore, the aesthetic appearance of the surface of the retaining wall 1 can always be maintained, and the surrounding scenery can be maintained.

Further, according to the retaining wall 1 with the decorative material, it can be applied to the large-sized decorative material 3 as in the above-described embodiment, and moreover, the retaining wall to which the decorative material 3 is attached can be easily installed in the factory. The wall 1 can be made.

The retaining wall with a decorative material of the present invention is not limited to the above-mentioned embodiment, and the specific constitutional requirements such as the shape, size, and material of each member can be appropriately changed in practice.

[Effects of the Invention] As described above, according to the retaining wall with a decorative material of the present invention, since the decorative structure has a double structure in which the decorative material is arranged on the surface of the concrete structure with a dry area therebetween. , Less affected by external heat and external force. Therefore, the adhesive strength of the retaining wall can be maintained for a long period of time, and the retaining wall can be prevented from peeling from the ground.

Further, the back surface of the decorative material and the surface of the concrete structure are connected to each other via a spring metal member that is arranged to be expandable and contractible in the thickness direction of the drive area, and the upper end portion and the lower end portion of the decorative material are respectively Since it is connected to the concrete structure via an elastic member, it is possible to isolate the horizontal and vertical forces applied from the outside by expanding and contracting the spring metal or elastically deforming the elastic member. You can Therefore, it is possible to sufficiently cope with the vibration of the automobile, the earthquake, and the like, and the peeling of the decorative material is not caused.

Further, the retaining wall with decorative material of the present invention is sufficiently applicable to large-sized decorative materials, and moreover, it is possible to manufacture a retaining wall to which these decorative materials are attached by a simple work in a factory. it can. In addition, since it is possible to easily join the retaining walls on-site, the work involved in manufacturing and construction can be simplified and labor can be saved, and the construction cost and construction period can be shortened.

[Brief description of drawings]

1 and 2 show an embodiment of a retaining wall with a decorative material according to the present invention. FIG. 1 is a perspective view and FIG. 2 is a sectional view. 1 ... Retaining wall with decorative material 2 ... Concrete structure 3
…… Cosmetic material, 9 …… Dent part, 10 …… Dry area, 13
...... Spring hardware, 14 …… Insert, 15 …… Anchor bolt, 19,21 …… Elastic member.

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Claims (1)

(57) [Scope of utility model registration request] 1. A concrete structure which constitutes a main body of a retaining wall, and a decorative material which is joined to the surface of the concrete structure. The decorative material is provided in a dent portion formed on the surface of the concrete structure. , A dry area is provided between the concrete structure and the back surface of the decorative material, and the surface of the concrete structure is a spring metal object that is expandable and contractible in the thickness direction of the dry area. An insert connected to one end of the spring metal object and embedded in the decorative material and an anchor bolt connected to the other end of the spring metal object and driven into the concrete structure are connected to each other, and the upper end of the decorative material The retaining wall with a decorative material, wherein the lower portion and the lower portion are respectively joined to the concrete structure through elastic members.