KR100549495B1 - 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, a plurality of cushioning blocks are disposed in a vertical direction on the surface of the retaining wall with a plurality of support holes, in which the waste rubber powder and the flame retardant are mixed at an appropriate ratio, are integrally formed by compression and spaced apart from each other in a horizontal direction. And a plurality of binding wires for integrally supporting the buffer blocks by passing through the support holes of the respective buffer blocks, and wire fixing means for fixing both ends of each of the binding wires so that the respective buffer blocks are tightly supported on the surface of the retaining wall. do. Preferably, some of the buffer blocks positioned at a predetermined interval among the plurality of buffer blocks are fastened to the retaining wall with anchor bolts 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.

Road, concrete barrier, buffer block, collision, 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 an exploded perspective view showing an extract of another embodiment of the present invention a buffer block;

Figure 6 is a partial cut plan view showing an extract of the combined state of Figure 5,

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

8 is a cross-sectional view taken along the line VII-VII of FIG. 7;

Figure 9 is a perspective view showing another form of the buffer block of the present invention,

10 to 12 are plan views showing various use examples of the buffer block shown in FIG.

13A and 13B are excerpted plan views showing other forms of the buffer block shown in FIG. 9;

14 is an exploded perspective view showing another embodiment of the buffer block shown in FIG.

15 and 16 are front views schematically showing still another embodiment of the retaining wall buffer structure according to the present invention;

Figure 17 is a schematic front view schematically showing another embodiment of the retaining wall buffer structure according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10: buffer block 11: support hole

12: metal pipe 13: matching protrusion

14: matching groove 15: fastening groove

20: binding wire 30: anchor

40: anchor bolt 41: nut

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 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, as shown in FIG. 1, a concrete block is formed at the center and both sides of the road R as shown in FIG. It is common to provide the firewall 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 rod is spaced up and down and installed in the driving direction of the vehicle, it is difficult to expect a sufficient shock absorbing effect because a part of the vehicle may enter the neighboring elastic rods and partially hit the concrete protective wall during 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 is a waste rubber powder and a flame retardant mixed at an appropriate ratio, and is integrally compressed and integrally compressed, and a plurality of support holes are vertically spaced to communicate with each other in a horizontal direction. A plurality of buffer blocks arranged vertically 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, some of the buffer blocks positioned at a certain interval of the plurality of buffer blocks are fastened to the retaining wall with an anchor bolt to increase the bearing capacity for the retaining wall.

According to another preferred feature of the present invention, a metal pipe is insert molded into the support hole of the buffer block to prevent damage of the buffer block by the binding wires.

According to still another preferred feature of the present invention, matching protrusions and matching grooves are formed at the front and rear ends of each buffer block, respectively, to facilitate alignment with neighboring buffer blocks, and at the same time, It also increases the bonding force.

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.

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 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 4, the retaining wall buffer structure according to the present invention comprises, for example, a plurality of buffer blocks 10 arranged successively on the side of the concrete barrier 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 integrally compression molded by mixing the waste rubber powder and the flame retardant in a certain ratio, for example, the waste rubber powder 70 WT%, the flame retardant 30WT%. 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 composed of a rectangular block having a rectangular cross section having an appropriate length and is disposed 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 11 through which the binding wires 20 respectively penetrate are formed in a horizontal direction. Preferably, metal pipes 12 are formed in the support holes 11, respectively. 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 5 and 6, in the middle of the front end of each buffer block 10, the matching projection 13 is fitted to the matching groove 14 formed in the rear end of the other adjacent buffer block 10 is A plurality of buffers are formed vertically, and in the middle of the rear end thereof, the matching grooves 14 into which the matching protrusions 13 formed at the front end of the neighboring other buffer blocks 10 are fitted, are also formed vertically, and are arranged to be in contact with each other. It provides a stable continuity with easy alignment of the blocks 10.

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 of the buffer block 10 from the concrete barrier wall (W) It has a protrusion amount smaller than the distance to (11). 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.

On the other hand, Figure 7 and Figure 8 schematically shows another embodiment of the retaining wall buffer structure according to the present invention, which is, in the configuration of the above-described embodiment, a plurality of buffer blocks 10 located at regular intervals The buffer block 10 is configured to be further fixed to the anchor bolt 40 to the concrete protection wall (W).

At this time, although the anchor bolt 40 may be fastened so as to completely pass through the buffer block 10, preferably, the anchor bolt is formed by forming fastening grooves 15 at the top and bottom of some of the buffer blocks 10 as shown. 40 and the nut 41 is configured not to protrude from the surface of the buffer block (10).

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.

9 shows another form of the buffer block 10a according to the present invention, which is such that the buffer block 10a has a trapezoidal cross section in the above-described configuration.

In this case, as shown in Fig. 10, each of the buffer blocks 10a may be alternately arranged in the opposite direction to be installed on the planar protection wall W, or as shown in FIG. 10a) can be arranged in the same direction so that the protective wall W on the curved surface can be installed without a gap, and as shown in FIG. 12, the protective wall W can be easily installed on the continuous surface and the curved surface.

In addition, even when the buffer block 10a has a trapezoidal cross-section as described above, as shown in FIGS. 13A and 13B, the matching protrusions 13 and the matching grooves 14 corresponding to both inclined surfaces of the buffer block 10a are formed. It is desirable to provide an increase in the bonding force with their easy alignment.

And as shown in Figure 14 by forming a fastening groove 15 in the upper and lower ends of some of the buffer block (10a), buffer bolts (10a) positioned at a predetermined interval anchor bolt 40 to the concrete protection wall (W) Of course it can be fixed firmly.

On the other hand, Figure 15 and Figure 16, in the configuration of the above-described embodiments, to fix the 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) The configuration 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 15, 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 17, in the configuration of the above-described embodiment, a plurality of buffer blocks (10) guided to guide the driver's gaze in the direction of progress for safe driving on the surface of the buffer block assembly (1) arranged in series (60) The embodiment is further formed with ().

The induction mark 60 is continuously formed at a predetermined angle to the surface of the buffer block assembly 1 at an inclined angle, and is made of, for example, a yellow reflector for excellent visibility. The reflector may be configured by attaching a conventional retroreflective paper to the surface of the buffer block assembly 1, or may be configured by adding a fluorescent material to the corresponding portion during molding of the buffer block (10).

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 as an example of a concrete barrier, but this is merely for the purpose of illustration, the present invention is not limited to this, 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.

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. A plurality of buffer blocks in which the waste rubber powder and the flame retardant are mixed at an appropriate ratio and are integrally molded by compression, having a plurality of support holes spaced apart from each other vertically and vertically connected to 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 cushioning structure of claim 1, wherein some of the plurality of buffer blocks positioned at predetermined intervals among the plurality of buffer blocks are fastened to the retaining wall by anchor bolts. The retaining structure for a retaining wall according to claim 2, wherein a metal pipe is inserted into a support hole of the buffer block. The retaining wall buffer structure according to any one of claims 1 to 3, wherein a matching protrusion and a matching groove are respectively formed to align with the buffer blocks adjacent to the front and rear ends of the respective buffer blocks. . The retaining structure for a retaining wall according to any one of claims 1 to 3, wherein the buffer block is configured to have a trapezoidal cross section. 6. The retaining wall cushioning structure as claimed in claim 5, wherein a matching protrusion and a matching groove are respectively formed to align with the buffer blocks adjacent to the front and rear ends of the respective buffer blocks. The retaining structure for a retaining wall according to claim 1, wherein the wire fixing means is an anchor provided on the retaining wall. The retaining structure of claim 1, wherein the wire fixing means is a post having a lower end embedded in a road so that the wire fixing means is parallel to the buffer block. The retaining wall buffer structure according to claim 1, wherein the flame retardant is one of aluminum oxide and antimony oxide. According to any one of claims 1 to 3, wherein the plurality of buffer blocks, the surface of the buffer block assembly arranged in succession to the binding wire, the inductive sign made of a reflector to guide the driver's gaze in the direction of travel is constant Retaining wall buffer structure, characterized in that further formed at intervals.

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