KR20080098219A - Road speed bump panel and construction method using the same - Google Patents

Abstract

The present invention relates to a speed bump panel for preventing speeding on a road and a construction method using the speed bump, and includes a surface layer for dispersing concentration of stress occurring at a distal end of an asphalt surface and a discontinuous surface of the speed bump panel. It relates to a speed bump plate for the road and a construction method using the same. The speed bumps panel for preventing the speed of the vehicle according to the present invention is manufactured by forming a curved plate having a flat surface toward the other surface having a raised speed preventing curved portion that is curved upwards to the center by mixing aggregate and modified asphalt. It features.

Description

Speed bumps for road and construction method using the same {speed bump for road and how to construct one}

1 is a cross-sectional view of an asphalt road showing a speed bump panel according to the prior art.

Figure 2 is a perspective view of the speed bump plate having a speed preventing curved surface portion according to the present invention.

Figure 3 is a procedure showing the construction process of the road precast speed bump panel according to the invention.

Figure 4 is a cross-sectional view of the asphalt road for the section in which the speed bump panel according to an embodiment of the present invention is installed.

<Code Description of Main Parts of Drawing>

11: speed bumper panel,

12: surface,

13: Middle layer,

21: Connection part of the speed bump panel.

111: Precast speed bump panel.

111a: The lower surface of the speed bump panel,

111b: top surface of the speed bump panel,

111c: Side of the speed bump panel.

The present invention relates to a speed bump panel for preventing speeding on a road and a construction method using the same. In particular, the present invention relates to a speed bump panel for an excellent road construction and easy installation, and a construction method using the same.

Roads have good resistance to compressive stress but are vulnerable to shear stress. Due to these characteristics, the asphalt or concrete layer on which the road is based is generally composed of materials having good compressive strength but weak shear strength.

The existing invention mainly prevents overspeed by developing materials that can absorb the stresses transmitted from the vehicle, or by lowering the speed while the vehicle avoids them. It is true that he was focused on doing so.

However, the former has a fatal weakness that is gradually hardened when the material that forms the surface layer is a fiber material such as rubber. In the latter case, the indirect method is used to steal the eyes of a driving vehicle. This is just a system to prevent overspeed, and the reality is that the driver who wants a more comfortable driving environment has a limit that cannot be permanent measures.

Normally, the breakage caused by shear stress is determined by the size and distribution of pores in a single material. In general materials, when one large pore exists in the composition, the external shear stress is 1 The effect of aggregating on the tip of the large pores of s is generated, which causes the crack to advance. This is called fracture due to concentration of stress. In the case of metal, it has a mechanism that can absorb external shear stress by dislocation multiplication, but materials such as asphalt pavement or concrete cannot absorb such shear stress. I don't have a device to do it.

In this way, when the material is deformed after plastic deformation, the material is deformed, and it is called rupture, and when the external stress cannot be absorbed, fracture occurs without plastic deformation of the material. It is called (fracture). However, if the material composed of metal showing ductile fracture is composed of the lower layer of the road, the destruction does not occur, but the deformation of the material occurs badly and the road becomes unevenly changed.

If the speed bumps are made of a material having ductility, the speed bumps can be prevented from being destroyed while the vehicle is running, but the speed bumps are a unique feature of the difference between the speed bumps and the normal road. A fatal disadvantage arises that cannot be realized.

In order to make up for these drawbacks, it has been the conventional invention to construct the asphalt surface and the speed bumps with different materials. Or even if it is made of a composition such as diarrhea due to the difference in the time interval between the speed bumps 11 and the surface layer 12 of the asphalt road to generate a time discontinuous surface (11a).

1 is a cross-sectional view of an asphalt pavement showing a speed bump panel according to the prior art. However, as shown in FIG. 1, when the speed bumps panel 11 and the surface layer 12 are configured with different materials or time differences, the force A and the surface layer (for the speed bumps panel 11 transmitted from the traveling vehicle) The force B acting in 12 acts as a shear stress at the tip between the surface layer 12 and the speed bumper panel 11, causing a stress concentration phenomenon at the P point. In this case, a phenomenon in which the cracks, etc. existing at the P point are moved forward occurs, and the speed bump panel 11 installed may be damaged without performing a proper function or may cause enormous damage to a vehicle driving on the road.

The present invention has been made in order to solve the above problems, to prevent the weakening of the function as a stress absorbing layer due to the curing of the speed bumps panel, and consists of a curved plate body including the surface layer to disperse the force by the traffic of the vehicle to speed This is to prevent separation of the jaw panel and to ensure smooth running of the road.

 In addition, it is another object of the present invention to provide a construction method for ensuring the simplicity of construction and fast running performance by providing in a precast form having a plate body form is mixed with aggregate and asphalt.

The speed bumps panel for preventing speed on the road according to the present invention is aggregated with the modified asphalt and is curved to the one side (111b) in the center upward and has a raised speed preventing curved portion flat to the other side (111a, c). It is characterized by being molded into a curved plate having a surface.

2 is a perspective view of a curved plate body installed on the surface layer surface of an asphalt road. The curved plate is 2m (W) x 3m (L) in size and 4 to 9 cm in thickness, and has a speed preventing curved surface portion which is curved upward to the one side (111b).

 The curved plate body as described above, but one surface side (111b) is curved, but the other surface side (111a, c) should be in a planar shape because it should be easy to adhere to the road or other curved plate body. In addition, the adhesive surface should be smooth and well-finished for easy installation, and the installation work will proceed easily.

The road speed bumps panel 111 should be composed of aggregate and modified asphalt. The aggregate is composed of aggregate of 13mm or more and less than 19mm in diameter, and the modified asphalt is chemical additive, waste tire, SBR (Styrene Butadiene Rubber), PBSC ( Polymer Bitumen Stabilizer with Cellulous Fiber) and Gilsonite (Natural Asphalt). Since these compounding ratios are well-known techniques, detailed descriptions are omitted.

Such a road speed bumps panel 111 is prepared in advance in the form of the formwork in the factory and after the curing process of the general asphalt concrete, it is possible to manufacture a precast speed bumps panel 111 having a shape as shown in FIG.

It is clear that such a precast speed bump panel 111 may be manufactured in various lengths in some cases. However, if the height is higher than a certain level, there is a possibility of causing a problem in the progress of the driving vehicle, and the road traffic regulations restrict the upper limit.

Figure 3 is a procedure showing the construction process for the road precast speed bump panel for road.

Hereinafter, the construction process of the precast speed bumps panel 111 will be described in detail. The speed bumps panel 111 according to the present invention should have a precast form prepared in advance. In other words, it should be ready to be installed on-site immediately, which must be properly installed in the section requiring construction after undergoing its molding production in advance (S10).

When the preparation for the panel is completed, the cutting operation for the section requiring the installation of the precast speed bumps panel 111 should be performed (S20). At this time, the surface layer 22 is cut using an asphalt cutter (not shown). First, the part to be cut by the scale mark should be selected. When the selection is completed, the surface layer 12 is cut. The coating treatment is performed on the portion from which the surface layer 12 is removed (S20).

In this way, the speed bumps panel 111 prepared on the surface of which the surface layer 12 is rolled out is inserted, and an operation of attaching with an emulsion asphalt, resin, epoxy resin, or sealant is performed (S30). The attaching operation may be performed by fusing a portion of the speed bumper panel 111 by heating means instead of attaching it with an emulsified asphalt, resin, epoxy resin or sealant (S30).

Emulsified asphalt refers to asphalt made of fine particles and dispersed in water. The emulsified asphalt does not occur in phase separation in water, and requires an emulsifier to maintain the dispersed state. If the emulsifier is charged with positive charge (+), it is called anion emulsion emulsion, and if it is charged with negative charge (-), it is called anion emulsion emulsion. Most of domestic products are cationic emulsion asphalt. When the emulsified asphalt is inserted between the precast speed bumps panel 111 and the cutting surface, the adhesion force with the speed bumps panel 111 is good and thus absorbs the shear stress from the outside.

Epoxy resins are mainly used for internal and external surface coating, steel protective coating, insulation parts for automobile parts, resistors and capacitors to prevent corrosion of water pipes. In addition, since epoxy resins vary in the types of curing agents that can be cured, the choice of curing agent is very important because the reaction rate and the physical and chemical properties of the cured coating film vary greatly depending on the type of curing agent.

The most widely used form of epoxy resin is prepared by reacting bisphenol-A (bisphenol-A) and epichlorohydrin prepared from phenol and acetone in the presence of sodium hydroxide or other catalysts at 60 to 120 ° C.

Epoxy resins have a very small reaction shrinkage rate, no volatiles, and excellent mechanical properties and electrical insulation when compared with resins such as polyester resins, phenol resins, urea resins, and melamine resins.

Another adhesive, sealant is one of the adhesives that need to be appropriately selected according to the type of adherend. In order to secure the adhesive force between the speed bumper panel 111 and the sealant to be used, the adhesive force between the speed bumper panel 111 and the cutting surface is applied. In order to secure the surface and the adhesive surface of the speed bumper panel 111 must be clean. If this is not the case, since the adhesive force of the speed bumper panel 111 and the adhesive surface is lowered, it is sufficient to perform the pre-operation and then attach it.

As another construction method, a method of heating the boundary surface of the speed bumper panel 111 by heating means and bonding it by partial fusion is used. In other words, when the boundary of the precast speed bump panel 111 is heated by heating means instead of using an emulsion asphalt, resin, epoxy resin, sealant, etc., partial melting occurs due to the characteristics of asphalt concrete. After the construction is done by bonding to each other.

As such, when the attachment work is completed on the side surface 111c of the portion where the precast speed bump plate 111 is installed, the construction is completed.

4 is a cross-sectional view of the asphalt pavement showing that the precast speed bump panel according to the present invention is installed.

As shown in the figure, when the surface layer 11 and the speed bump panel of the asphalt are formed of a material having a uniform composition, it is possible to minimize the occurrence of cracks due to the discontinuous surface 11a. In addition, there is no clear boundary line between the asphalt surface layer 12 and the speed bump panel, so even if the shear stress is transmitted, various forces are distributed to prevent the crack from moving forward as shown in FIG. 1. do. That is, the stress which is transmitted to the point P of the tip of the speed bumps panel 11 and the surface layer 12 of FIG. 1 is transmitted to the connection portion 21 between the speed bumps panel and the cut surface of the road to distribute the force. You can get it.

The speed bump jaw panel 111 is aggregated with modified asphalt, and is curved upward to the one side 111b, so as not to impede the traffic on the road, and to prevent the speed of the driving vehicle. . On the other hand, the other surface side 111a, 111c is a curved plate body which has a flat surface, and is easy to cut | attach with a cut surface of a road.

In the case of the road manufactured by separating the speed bumps panel and the surface layer as in the previous invention, there was a disadvantage in that stress is concentrated at the distal end of the connection portion between the surface layer 12 and the speed bumps panel 11. However, when the speed bumps panel 11 is manufactured by further including the surface layer 12 corresponding to the thickness of the surface layer 12 of the asphalt, the shear stress of the outside is dispersed and thus the protection of the speed bumps panel 111 and It is possible to obtain a protective effect of a driving vehicle.

In addition, since the precast speed bump panel according to the present invention is pre-fabricated in the factory, it is prepared in advance to enable rapid construction, and further includes a surface layer 12 corresponding to the thickness of the surface layer 12 of asphalt. Phosphorus use is possible.

Claims (5)

In the speed bump panel 111 for preventing speed on the road, Aggregate and modified asphalt are blended and curving upwards at one surface side 111b to form a curved plate having a flat surface on the other surface side 111a and c. Bump panel. The method of claim 1, The curved plate body road speed bumps panel characterized in that it further comprises a surface layer 12 corresponding to the thickness of the surface layer 12 of the asphalt. In the method for constructing the road speed bumps panel 111, (a) The speed bumper panel 111 is formed of a curved plate having a flat surface on the other surface side 111a and c, having aggregated and modified asphalt compounded on one surface side 111b, which is bent upwardly to the center. Molding step (S10) and; (b) removing the surface layer 12 of the asphalt pavement (S20); (c) attaching the speed bumps panel 111 to the upper surface of the intermediate layer 13 (S30); and installing the speed bumps panel 111 on the surface layer 12 of the asphalt pavement road. Construction method of speed bump panel 111 on the pavement. The method of claim 3, wherein The speed bumps panel 111 and the intermediate layer 13 is a method of constructing a speed bumps panel, characterized in that bonded to any one selected from the group consisting of asphalt, resin, epoxy, sealant, and the like. The method of claim 3, wherein The speed bumps panel 111 and the intermediate layer 13 is heated by heating means, the construction method of the speed bumps panel, characterized in that fusion bonding.

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