KR100612856B1 - Shock-absorbing structure for breast wall - Google Patents

Abstract

The present invention discloses a buffer structure for a retaining wall. According to the present invention, one of the flame retardant aluminum oxide or antimony oxide is mixed with the waste rubber powder in an appropriate ratio to have a plurality of support holes which are integrally formed by compression and are spaced vertically, but the metal pipe is integrated in each support hole. A plurality of arc-shaped buffer blocks, which are insert-molded and vertically aligned to be closely aligned with each other on the surface of the retaining wall, and a plurality of binding wires integrally supporting the buffer blocks through the support holes of the respective buffer blocks, each buffer Blocks include wire fixing means for fixing both ends of each binding wire so that the blocks are closely supported on the surface of the retaining wall. Both sides of the buffer block is provided with a flange connected to overlap with other neighboring buffer blocks, the flange of some of the buffer blocks located at regular intervals is fastened to the retaining wall with an anchor bolt to increase the bearing capacity for the retaining wall.

The present invention can be easily installed irrespective of the construction time or shape of the retaining wall, such as a firewall, thereby effectively alleviating the impact of a vehicle collision, thereby minimizing human injury and damage to the vehicle.

Concrete barrier, buffer block, shock absorbing hole, support rib, impact, tunnel, retaining wall

Description

Shock-absorbing structure for breast wall

1 is a perspective view schematically showing an overpass as an example of a road;

2 is an exploded perspective view showing a buffer structure for a retaining wall according to the present invention;

3 is a plan view showing the assembled state of FIG.

4 is an enlarged cross-sectional view showing an IV portion of FIG. 3;

5 is a cross-sectional view taken along the line VV of FIG. 4;

Figure 6 is an exploded perspective view showing another form of the buffer block of the present invention,

FIG. 7 is a partial cutaway plan view illustrating the combined state of FIG. 6; FIG.

Figure 8 is a cross-sectional view showing another form of the buffer block of the present invention,

9 is a front view showing another embodiment of the retaining wall buffer structure according to the present invention;

10 is a cross-sectional view taken along the line VII-VII of FIG. 9;

11 and 12 are front views schematically showing still another embodiment of the buffer structure for the retaining wall according to the present invention;

13 is an exploded perspective view schematically showing another embodiment of the retaining wall buffer structure according to the present invention;

14 is a front view of the engaged state of FIG.

<Description of Symbols for Main Parts of Drawings>

10: buffer block 11: space part

12: support rib 13: support hole

14: metal pipe 15: flange

16: engaging jaw 17: registration protrusion

18: matching groove 20: binding wire

30: anchor 40: anchor bolt

50: post 60: guide cover

W: Concrete Barrier R: Road

V: vehicle

The present invention is mounted on various structures on the road, such as concrete barriers or inner walls of tunnels or overpasses on elevated roads, which are installed at a suitable height on the center line of the road and on the road to prevent the vehicle from invading the center line or the road. The present invention relates to a shock absorbing structure for a retaining wall for minimizing damage to a vehicle and life by effectively absorbing a shock.

In general, various safety facilities are installed on the road to prepare for accidents such as collisions as well as traffic signs for safe driving of vehicles. Representative of these are barriers installed on both sides of the road and along the road at the center to prevent driving vehicles from leaving the road or invading the other side of the road. These barriers are usually made of steel fences or concrete blocks. .

In the case of steel fences, it is possible to expect some buffering effect due to deformation during collision using high-strength steel plates, but there is also a possibility of secondary accidents due to departure because the car is likely to break through the barrier.

Therefore, when it is necessary to actively prevent the departure of the vehicle V, such as an overpass or a highway using a bridge, a barrier made of concrete blocks in the center and both sides of the road R as shown in FIG. It is common to provide (W) at an appropriate height.

By the way, the concrete barrier wall (W) is very excellent in strength to prevent the departure of the road of the vehicle (V), but because of the lack of elasticity or extremely weak, if a collision occurs, the vehicle (V) is greatly damaged and significant impact energy There is a very high risk of being fatally injured and delivered to the passenger.

This problem is not limited to concrete barriers. For example, the same problem can occur in tunnel walls or bridge piers located on roads. It can also occur on walls of ramps.

Hereinafter, concrete barrier walls constructed on the road, and walls such as inner walls of tunnels and lamps will be collectively referred to as "retaining walls".

On the other hand, the Republic of Korea Utility Model Registration No. 00249072 and No. 0249073 by completely wrapping the concrete protection wall with an elastic sheet of rubber material or by arranging a plurality of elastic rods on the side of the concrete protection wall at regular intervals and fastened with anchor bolts (anchor bolt) Techniques have been proposed to mitigate the impact of a car crash.

However, the technology of wrapping concrete barriers with elastic sheets cannot be applied to the barriers constructed by site casting or the barriers already built, and can be applied only to new barriers on the block that are manufactured at a certain size in the factory and transported to the site. Not only there are restrictions, but it is very difficult to cover the elastic sheet to the protective block up to several hundred kilograms.

Moreover, since the elastic sheet is simply made of rubber, there is a high possibility that the elastic sheet is incinerated in the event of a fire of the vehicle due to a collision.

In addition, the technology to install the elastic rod on the side of the concrete barrier wall anchor anchor bolts are installed in the form of the anchor bolt in the formwork in the form of the construction of the wall after placing the concrete anchor bolts to each pipe There is a very complicated problem to fix with nuts.

In addition, since the elastic rods are spaced up and down and installed in the driving direction of the vehicle, it is difficult to expect a sufficient cushioning effect because a part of the vehicle may enter the neighboring elastic rods and partially hit the concrete barrier walls in a collision. .

The present invention was devised to solve the above-mentioned problems, and can be easily installed on retaining walls such as concrete barrier walls, tunnel inner walls, and piers to effectively alleviate the impact of a vehicle collision, thereby minimizing vehicle and human injury caused by the collision. It is an object of the present invention to provide a buffer structure for retaining walls.

It is another object of the present invention to cover a vehicle crashable part of the retaining wall while being easily installed regardless of the construction time or shape of the retaining wall, such as a retaining wall newly constructed as well as a retaining wall constructed with a plurality of blocks. It is to provide a retaining structure for the retaining wall that can prevent a direct collision with the retaining wall of the vehicle.

It is still another object of the present invention to provide a retaining structure for a retaining wall, which is not only easy to transport and handle as a compact and lightweight, but also does not have a risk of incineration even in the event of a fire of a vehicle due to a collision.

In order to achieve the above objects, the retaining wall buffer structure according to the present invention comprises a combination of waste rubber powder and antimony oxide, which is a flame retardant, at a proper ratio, and is integrally formed by compression molding and spaced apart vertically. A plurality of arc-shaped buffer blocks each having a hole in a horizontal direction and integrally insert-molded with a metal pipe in each of the support holes, and vertically aligned to closely contact each other on the surface of the retaining wall; A plurality of binding wires integrally supporting the buffer blocks through the support holes of the respective buffer blocks; It characterized in that it comprises a; wire fixing means for fixing both ends of each binding wire so that each buffer block is closely supported on the surface of the retaining wall.

According to one preferred feature of the present invention, by providing a plurality of support ribs on the inner surface of the buffer block at regular intervals, it is possible to suppress the excessive deformation of the shock absorbing block in a vehicle crash, thereby enabling more stable shock absorption.

According to another preferred feature of the present invention, flanges connected to overlap with other buffer blocks adjacent to both sides of the buffer block is provided, respectively, overlapping of some of the buffer blocks are located at a certain interval of the plurality of buffer blocks The flange is fastened to the retaining wall with an anchor bolt to increase the bearing capacity for the retaining wall.

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According to another preferred feature of the present invention, a reflection pipe is further provided on the binding wire between two neighboring buffer blocks to increase the driver's attention.

Accordingly, the present invention can be easily installed on various retaining walls such as concrete barriers, tunnel inner walls, or piers constructed on the road to effectively absorb and mitigate the impact of a vehicle collision, thus minimizing the damage to the vehicle and human life due to the collision. You can do it.

In addition, it can be installed easily regardless of the construction time or shape of the retaining wall, and it can cover the vehicle collision possibility area of the retaining wall as a whole to reliably prevent the possibility of direct collision of the vehicle against the retaining wall. It is also very easy and there is little fear of incineration even in a vehicle fire due to a collision.

Therefore, the present invention has a great effect on the reliability of road traffic and ensuring the running safety of the vehicle.

Such specific features and other advantages of the present invention will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

2 to 5, the retaining wall buffer structure according to the present invention includes, for example, a plurality of buffer blocks 10 arranged successively on the side of the concrete protective wall W, and these buffer blocks 10 integrally. The binding wire 20 and the buffer block 10 to support it is composed of an anchor 30 for fixing both ends of the binding wire 20 so as to be tightly supported by the concrete protection wall (W).

The buffer block 10 is configured by mixing the waste rubber powder and the flame retardant material at a predetermined ratio, for example, 70 WT% of the waste rubber powder, 30 WT% of the flame retardant material and integrally compressing the same. Preferably, the waste rubber powder is used as a crushed tire crushed hunt tire powder of the appropriate size, which uses the excellent durability and elasticity of the tire so that the buffer block 10 has a high strength and elasticity. At the same time, it is due to the recycling of waste resources.

In addition, the flame retardant is used to prevent the buffer block 10 made of rubber from being burned down in case of a fire after a collision with the vehicle. For example, aluminum oxide or antimony oxide may be used.

The buffer block 10 is configured in an arc shape having a space portion 11 therein to absorb shock energy while being properly crushed in a vehicle crash, and the space block 11 preferably includes a buffer block 10. A plurality of support ribs 12 are provided at regular intervals to suppress excessive distortion.

This is because when the shock absorbing block 10 is excessively crushed by the space 11 during vehicle collision, a small amount of shock may be applied to the vehicle or the occupant, so that the support ribs 12 appropriately suppress the impact. This is to minimize.

Such a buffer block 10 is configured in a suitable length, for example, is arranged vertically on the side of the concrete protective wall (W). At this time, the buffer block 10 may be configured to have the same length as the height of the concrete barrier wall (W), but since the collision portion of the vehicle (V) is generated in the bumper (bumper) or more approximately from the top of the concrete barrier wall (W) It may be composed of a length that can cover only up to the height.

Near the upper and lower ends of the buffer blocks 10, support holes 13 through which the binding wires 20 respectively penetrate are formed in the horizontal direction. Preferably, the support pipes 13 have metal pipes 14 formed therethrough. When the buffer block 10 is molded together, the insert is molded together and configured integrally with the buffer block 10. This is to prevent the buffer block 10 made of rubber from being damaged by the binding wire 20 that binds them and supports the concrete protective wall (W).

On the other hand, as shown in Figures 6 and 7, each side of each buffer block 10 is formed with a flange 15 which is in contact with the concrete protection wall (W) while overlapping with other neighboring buffer block 10 is formed, respectively To provide stable continuity with easy alignment of the plurality of buffer blocks 10 arranged in series to be in contact with each other.

To this end, one flange 15a extends outward from one side end of the buffer block 10, and the other flange 15b is overlapped with one flange 15a of the other buffer block 10 so as to overlap the buffer block ( At the other side end of 10) extends to the outside at a predetermined spaced apart to form the engaging jaw (16).

At this time, more preferably, as shown in Figure 8, the mating with at least one mating projection (17) fitted to each other on the contact surface of the flanges (15a, 15b) of the two buffer blocks 10 overlapping each other The groove 18 may be formed vertically or horizontally (in the figure, formed horizontally).

The binding wire 20 can be used in various ways, it is preferable to have a sufficient rigidity and tensile force, for example, a conventional metal wire made by twisting a plurality of fine wire can be used.

The anchor 30 is fixed to the concrete barrier wall (W) at both ends of the plurality of buffer blocks 10 arranged in succession, wherein the anchor 30 is a support hole (10) of the buffer block 10 from the concrete barrier wall (W) 11) has a protrusion amount less than the distance to the. Therefore, when both ends of the binding wire 20 continuously penetrating the buffer blocks 10 to the anchor 30, the buffer block 10 is pulled toward the concrete protection wall (W) by the binding wire 20 concrete barriers Closely supported by (W).

Retaining structure for the retaining wall according to the present invention having such a structural feature, the pre-fabricated buffer block 10 and the binding wire 20 and the anchor 30 to the installation site, for example to the concrete protective wall (W) After punching the anchor 30 and sewing a plurality of buffer blocks 10 to the binding wire 20 by binding both ends of the binding wire 20 to the anchor 30 installed in the concrete barrier wall (W) by strong binding. Complete the installation.

Therefore, the present invention can be easily installed in the required portion, regardless of the construction time or form of the concrete protective wall (W), and effectively alleviates the impact during a vehicle collision to minimize the damage to the vehicle and life.

In particular, since the shock absorbing block 10 having the appropriate size and weight is constructed in the concrete protection wall (W) using the binding wire 20 in the field, the installation work can be installed very simply and quickly. In addition, since the side surface of the concrete barrier wall (W) is covered without gaps between the respective buffer blocks 10, it is possible to reliably prevent the direct collision of the vehicle (V) against the concrete barrier wall (W).

In addition, since the buffer block 10 is compressed and molded by mixing the flame retardant material with the appropriate ratio in the waste rubber powder from which the used tires are crushed, it has excellent strength and elasticity, and can easily absorb shocks without being easily damaged during a vehicle crash. Of course, even if a fire occurs in the vehicle (V) due to a collision, the damage of the buffer block 10 is effectively suppressed.

Furthermore, since the buffer block 10 is configured in an arc shape having a space 11 therein, the shock absorbing block 10 is properly crushed to absorb shock energy when a vehicle collision occurs, thereby minimizing vehicle and human injury caused by a collision. It becomes possible.

Meanwhile, another embodiment of the retaining wall shock absorbing structure according to the present invention is schematically illustrated in FIGS. 9 and 10, which is a plurality of buffer blocks 10 positioned at regular intervals among the plurality of shock absorbing blocks 10. The overlapping flanges 15a and 15b of the buffer blocks 10 are configured to be further fixed to the concrete barrier wall W by the anchor bolts 40.

Embodiment of this configuration can support the buffer block 10 more firmly and stably against the concrete protection wall (W) can minimize the damage caused by the collision, in particular, the binding wire 20 is difficult to support a fairly long It can be installed at once even in the section.

On the other hand, Figure 11 in the configuration of the above-described embodiments, a structure for fixing both ends of the binding wire 20 through the buffer block 10 by installing a post 50 on the road (R) instead of the anchor 30 Is shown.

Post 50 is made of a steel pipe is fixed to the ground by the bottom end is deeply embedded in the road (R), the exposed top end is located side by side with the buffer block 10 to allow fixing of the binding wire (20).

Accordingly, when the binding wire 20 is fixed by the post 50, it is difficult to closely support the buffer block 10 to the concrete protection wall W only by the tensile force of the binding wire 20. Of the buffer block 10 is preferably fixed by a separate anchor bolt (40).

At this time, the post 50 may be located only at both ends of the buffer block 10 assembly as shown in Figure 11, or may be located at both ends and the middle of the buffer block 10 assembly as shown in FIG.

On the other hand, Figure 13 and 14, in the configuration of the above-described embodiments, the reflection pipe 60 to increase the attention of the driver for safe driving to the binding wire 20 between the two adjacent buffer block 10 is further An example embodiment is provided.

The buffer block 10 of the present invention is configured in an arc shape, and in particular, the binding wire 20 is exposed between two adjacent buffer blocks 10 when the flanges 15a and 15b are connected at both ends thereof. This is not preferable to the aesthetic view of the road, so that the reflective pipe 60 provided with a specific type of fluorescent material or retroreflective material on the surface of the binding wire 20 is provided to enhance the driver's attention while improving the aesthetics. It can be.

The reflective pipe 60 may be made of synthetic resin or rubber material, and may be integrally formed by adding a fluorescent material to the surface during molding.

In the case of such an embodiment, in particular, it greatly contributes to securing the safety of the vehicle running at high speed at night, and also contributes to the safety driving in the curved section of the road R.

In the above, the present invention has been described by taking concrete barriers as an example, but the present invention is not limited to this, but the purpose of a simple example, for example, the inner wall of the tunnel or the pier such as overpass and vehicle entrance ramp wall of various buildings Of course, it can be widely applied to the back.

In addition, the shock absorbing block has been described as an example of an arc shape, but not shown separately, it can be seen that it may be made of a square channel ("c" shaped) and the form provided with a flange on both sides of the square channel.

As described above, the retaining wall buffer structure according to the present invention can be easily installed on various retaining walls, such as concrete barriers, tunnel inner walls, or piers, which are constructed on roads, to effectively absorb and mitigate the impact of a vehicle collision. Therefore, it is possible to minimize the vehicle and human injury caused by the collision.

Regardless of the construction time or shape of the retaining wall, it can be easily installed, and it can cover the vehicle collision possible part of the retaining wall as a whole to reliably prevent the possibility of direct collision of the vehicle against the retaining wall. It is also very easy and there is little fear of incineration even in a vehicle fire due to a collision.

Therefore, the present invention has a very excellent effect that greatly contributes to the reliability of road traffic, driving safety of the vehicle, reduction of casualties, and the like.

Claims (10)

As a buffer structure for retaining walls, it is installed on retaining walls such as concrete protection walls, tunnel inner walls, and piers on roads to absorb and mitigate the impact of a vehicle crash. One of the flame retardant materials, aluminum oxide or antimony oxide, is mixed with the waste rubber powder at an appropriate ratio and is integrally formed by compression, and has a plurality of support holes spaced vertically and horizontally with metal pipes integrally formed in each support hole. A plurality of arc-shaped buffer blocks that are insert-molded and aligned in succession so as to be in close contact with each other on the surface of the retaining wall; A plurality of binding wires integrally supporting the buffer blocks through the support holes of the respective buffer blocks; Retaining wall cushioning structure comprising a; fixing means for fixing both ends of each of the binding wires so that each of the buffer blocks are in close contact with the surface of the retaining wall. The retaining wall buffer structure according to claim 1, wherein a plurality of support ribs are provided on the inner surface of the buffer block at predetermined intervals. The retaining wall cushioning structure of claim 1 or 2, wherein flanges connected to overlap with other buffer blocks adjacent to both side ends of the buffer block are provided. delete 4. The retaining wall cushioning structure as claimed in claim 3, wherein the overlapping flanges of some buffer blocks positioned at predetermined intervals among the plurality of buffer blocks are fastened to the retaining wall by anchor bolts. 4. The retaining structure of claim 3, wherein a reflection pipe is further provided on the binding wire between the two neighboring buffer blocks. 4. A retaining structure for a retaining wall according to claim 3, wherein said wire fixing means is an anchor provided on said retaining wall. 4. The retaining wall cushioning structure as claimed in claim 3, wherein the wire fixing means is a post having a lower end embedded in a road so as to be parallel to the buffer block. delete 4. The retaining wall cushioning structure as claimed in claim 3, wherein a matching protrusion and a matching groove are respectively formed for alignment with the buffer blocks adjacent to the contact surfaces of the respective buffer block flanges.

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