JPH0245287Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to traffic road protection equipment that protects traffic routes such as roads and railroad tracks provided on slopes in mountainous areas from falling rocks and the like.

Conventionally, as this type of traffic road protection equipment,
There is something like the one shown in the figure. In the same figure, 2
is a road provided on a slope 4, and concrete support stands 6 are partially buried in the mountain and valley sides of the road 2. Supports 8a and 8b extend upward from this support base 6.

The pillars 8a, 8b are such that the pillar 8a on the mountain side is slightly higher than the pillar 8b on the valley side, and the beam 10 is attached to the upper end of these pillars 8a, 8b so as to be inclined downward from the mountain side toward the valley side. There is.

Furthermore, a shallow box-shaped impact receiving surface 12 made of concrete, steel, etc. is fixed to the upper surface of the beam 10, and sand 14 is placed within this impact receiving surface 12.
The sand 14 absorbs the impact caused by falling objects such as stones and earth and sand falling from above the slope 4.

However, such traffic road protection equipment is
The buffering capacity differs depending on the degree of dryness of the sand 14, the type of sand 14, etc., and if the sand 14 is washed away by rainwater or the like, or if the sand 14 is compacted by falling objects, the buffering capacity will decrease significantly. There are drawbacks.

Furthermore, there is also the disadvantage that falling objects tend to accumulate on the sand 14, and extra loads are applied to the supports 8a, 8b, etc. Furthermore, when a new falling object falls on top of the accumulated falling objects, the impact is not absorbed and the impact surface 1
2. There is also the drawback that the heat is transmitted to the pillars 8a, 8b, etc.

For this reason, the pillars 8a, 8b and the beam 1
0. The strength of the impact-receiving surface 12 must be made sufficiently large, leading to an increase in cost.

This invention aims to provide a traffic road protection facility that eliminates the above-mentioned drawbacks.

Therefore, this invention provides a traffic road protection equipment having an impact receiving surface provided to cover at least an upper part of the traffic road, and a buffer provided on the impact receiving surface, in which the said buffer is an upper surface member located above the impact surface at a distance from the impact surface; and a protrusion integrally provided with the upper surface member at a distance from each other and in contact with the impact receiving surface from the lower surface of the upper surface member. The rubber-like elastic body has a through hole vertically extending through the upper surface member and the protrusion.

With this configuration, the shock caused by falling objects from above is absorbed by the shock absorber deforming so as to crush the gap or through hole between the upper surface member and the impact receiving surface, so that the shock absorption is improved. It is large and does not apply a large impact to traffic road protection equipment. In addition, since the upper surface member and the protrusion are integrally constructed, it can be quickly installed on the buffer body without taking much time to install it.

In addition, large falling objects such as falling rocks are blown away by the large repulsive force that occurs when the deformation of the gap and through hole between the upper surface member and the impact receiving surface returns to its original state, so that it does not accumulate on the upper surface of the shock absorber. Light, small, and easy-to-accumulate falling objects, such as earth and sand, do not sink into the cushioning body and are easily washed away by rain, wind, etc. Therefore, no extra static load is applied to the traffic road protection equipment.

Further, since the rubber-like body has a small change over time and the variation in its properties can be easily made sufficiently small, the variation in buffering capacity and change over time are small.

With this configuration, no extra static load is applied due to the accumulation of fallen objects, and variations in buffering capacity and changes over time are reduced, making it possible to provide traffic road protection equipment with great strength unlike conventional examples. This eliminates the need for road protection equipment, reducing the cost of road protection equipment.

The purpose of providing a space between the upper surface member and the impact-receiving surface of the shock absorber and providing a through hole in the upper surface member and the protrusion is to prevent the shock absorber from deforming significantly when a falling object collides with the shock absorber. This is because even if the same force is applied, the greater the deformation, the greater the buffering capacity.

Therefore, when the shock absorber is simply a thick plate of rubber-like material, the deformation is small, so the shock absorbing capacity is small, and it only acts as a protective material to protect the impact surface. Has buffering capacity.

Hereinafter, one embodiment of this invention will be described based on FIG. 2. In this embodiment, a plurality of thick rubber cushioning bodies 20 are installed instead of the sand 14 of the conventional example.

Each buffer body 20 includes a flat top member 22, a large number of protrusions protruding from the back side of the top member 22, for example, a cylindrical projection 24, and a structure that extends through the top member 22 and the cylindrical projection 24. A through hole 26 is provided at the center of the cylindrical projection 24, and the upper surface member 22 and the cylindrical projection 24 are integrally formed. Further, the height of the cylindrical projection 24 is approximately equal to the thickness of the upper surface member 22.

Each shock absorber 20 is manufactured to have a predetermined size and shape and undergoes quality control to ensure certain characteristics.

A plurality of shock absorbers 20 are arranged without gaps with the cylindrical protrusions 24 in contact with the bottom surface of the impact receiving surface 12, and each is fixed to the impact receiving surface 12 with bolts (not shown).

The traffic road protection equipment configured in this way can prevent the shock absorber 20 from being damaged even if the impact from a falling object is applied to the shock absorber 20.
Since the shock is absorbed by deforming greatly so as to crush the space around the through hole 26 and the cylindrical projection 24, a large shock is not applied to the columns 8a, 8b, the beam 10, etc.

In addition, large falling objects such as falling rocks are blown away by the large repulsive force of the buffer body 20, making it difficult for them to accumulate on the top surface of the buffer body 20.

Therefore, the traffic road protection equipment is not subjected to a large impact caused by falling objects or an extra static load due to the accumulation of fallen objects, so that the pillars 8a and 8b and the beam 1
0. It is no longer necessary to sufficiently increase the strength of the impact receiving surface 12, and the cost of the traffic road protection equipment can be reduced.

Furthermore, if a part of the impact receiving body 20 is damaged for some reason, it is only necessary to replace that part of the impact receiving body 20 itself, making the repair work easy.

In the above embodiment, the through-holes 26 have a circular shape, but they may have any shape such as a triangle or a quadrangle, and adjacent through-holes 26 may be connected through a communication hole.

Furthermore, in the above embodiment, the buffer body 20 is fixed to the impact receiving surface 12 with bolts, but it may also be simply fitted.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a conventional traffic road protection facility, and FIG. 2 is a cross-sectional view of a first embodiment based on this invention. {8a, 8b...post, 10...beam, 12...
Impact receiving surface} (traffic road protection equipment), 20, 20'...Buffer body, 26...Through hole.

Claims (1)

[Scope of utility model registration request] In the traffic road protection equipment, which has an impact surface provided to cover at least an upper part of the traffic road, and a buffer provided on the impact surface, the buffer is provided above the impact surface. an upper surface member located at a distance from the upper surface member; a protrusion portion integrally provided with the upper surface member at a distance from each other and in contact with the impact receiving surface from the lower surface of the upper surface member; 1. Traffic road protection equipment, characterized in that it is a rubber-like elastic body having a protrusion and a through hole provided vertically penetrating the protrusion.