JPH0721170B2 - Road curb molding method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road curb forming method for constructing a curb when constructing a median strip of a road.

[0002]

2. Description of the Related Art Various road divisions such as a median strip are constructed during road construction and renovation work, but it is usually necessary to surround the periphery with curbs. Figure 5 shows the construction method of this curb
Will be described with reference to. First, the road surface on which the curbstone 24 is to be installed is dug down to form the first foundation 21 which is generally permeable mackerel soil and crushed stone. Then, concrete mixed with crushed stone is laid on the expanded first foundation 21 to form the second foundation 22. Furthermore, along with the intended line and while adjusting the level with the mortar 23, concrete curbs 24 are arranged in series, and joints such as mortar are evenly applied between adjacent curbs 24. . And
After the mortar 23 is solidified and the curb stones 24 are fixed, concrete pouring (or spreading pressure of asphalt) is performed to embed the lower portion of the curb stones 24 with the pavement layer 25 to complete the construction. In addition, as another example, a simple construction method of simply adhering a ready-made concrete curb to the surface of the road with mortar, or a curb is molded with concrete by installing a formwork before paving work. There is a construction method etc.

[0003]

In the above-mentioned prior art, since the ready-made concrete curb has a weight of 30 kg or more, it is not easy to carry or arrange, and there is an adjustment work which is not suitable for mechanization. There is a problem that construction requires heavy labor and requires skill.
In addition, the road pavement work must be performed after the curb is constructed, and since the foundation work of the curb is carried out twice, the process management becomes complicated, the construction period becomes long, and the entire road construction is large. There is a problem of affecting. In addition, in the above-mentioned simple construction method, since the lower part of the curb is not embedded in the road, the mounting strength may be insufficient, and it may rise (peel off) due to expansion and contraction of the road surface layer directly affected by vibration and climate. ) Phenomenon occurs and it cannot be said that the function is sufficient. Furthermore, the method of installing the formwork and forming the curb with concrete further complicates the work of the foundation part and prolongs the entire road construction, which can be said to be against the request for simplification of construction.

Therefore, the present invention is a technical problem to be solved in that the workability of the curbstone construction is improved by eliminating the handling of heavy objects by the operator and the construction period is shortened by simplifying the construction of the foundation portion. It is an issue.

[0005]

[Means for Solving the Problems] For this purpose, the following road curb forming method was created. That is, after the road surface is dug down to form a foundation surface, a curb-shaped frame body which is formed to be able to be filled with a fluid material such as ready-mixed concrete and has openings in at least an upper portion and a lower portion is formed from the foundation surface through a supporting member. It is characterized in that it is placed at a desired position in a floating state, and then the fluid material is flowed on the foundation surface and the frame body to form a portion to be a road surface and a curb.

[0006]

In the method for forming a road curb having the above-described structure, the curb-shaped frame body is arranged in a state of being floated by the support member at an intended position on the foundation surface of the road. Then, a fluid material such as ready-mixed concrete is poured into the foundation surface and the curb-shaped frame. Since the curb-shaped frame body has openings in the upper and lower portions, it can be poured into the frame body through the upper opening. The fluid material filled in the frame is connected to the fluid material on the base surface at the lower opening. If the thickness of the fluid material on the foundation surface is larger than the floating height of the curb-shaped frame body, the lower end outer peripheral portion of the curb-shaped frame body is covered with the fluid material. Then, solidification of the fluid material forms a road curb integrated with the road surface.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. First, a curb-shaped frame body (hereinafter, simply referred to as a frame body) and a support member used for constructing the curb of this embodiment will be described. As shown in FIGS. 1 and 2, the frame 1 is made of synthetic resin or the like and has a transverse U-shaped cross section, and an injection port (a rectangular shape) for filling fresh concrete is formed in the upper part of the frame ( (Also referred to as an opening) 2 and a mounting hole 3 to which a reflection plate or the like can be mounted are provided, and a connecting hole 5 for connecting bolts and a communicating window 6 for connecting the frame bodies 1 in series to each other at a side end portion. An end plate 4 on which is formed is provided. Also,
Collar-shaped legs 8 having engaging holes 7 for engaging a supporting member 10 described below are provided on both sides of the lower end so as to extend in the longitudinal direction. Further, a lower opening 9 is provided in the frame body 1, and the lower side is opened over almost the entire surface.

The support member 10 has a steel rod body 11 whose lower end is sharply formed in a conical shape, and whose upper end is formed with a male screw and is screwed with a nut 12 having a washer. Then, the rod body 1 is inserted into the engagement hole 7 of the frame body 1.
Insert the upper end of No. 1 into the upper and lower nuts with washers 12, 1
The engagement position can be adjusted by tightening the leg portion 8 of the frame body 1 at 2. A method of forming a road curb using the frame 1 and the support member 10 will be described below.

As shown in FIG. 1, first, a road surface on which a curb is to be installed is dug down, a permeable mackerel soil and crushed stone are spread, and the foundation surface 14 is formed by appropriately expanding the pressure. On this foundation surface 14, a plurality of frame bodies 1 are provided on the intended line for installing curbs.
In order to center and arrange the above, the required number of support members 10 are vertically driven in the positions corresponding to the engagement holes 7 (see FIG. 2) of the frame body 1. Next, the rod body 11 of the support member 10 is inserted into the engagement hole 7 of the frame body 1 to mount the frame body 1 on the support member 10, and the adjacent frame bodies 1 are inserted into the connection hole 5 to be connected. It is integrated by connecting with bolts (not shown).
Then, the nut 1 with a washer attached to the support member 10
2 is screwed to adjust the level of the frame 1. At this time,
Using the rattling (play) between the engaging hole 7 and the supporting member 10 of the frame body 1 shown in FIG. 2, the surface deviation between the side surfaces of the adjacent frame bodies 1 is finely adjusted. In this way, at the stage when the arrangement of the frame body 1 at the intended position where the curb should be installed, the frame body 1 is supported in a state of floating from the foundation surface 14.

Next, concrete (green concrete) 16 is poured onto the foundation surface 14 to form a pavement layer 15 whose surface layer surface (road surface) is at a level for embedding the lower end outer peripheral portion of the frame 1. At this time, the concrete 16 is poured into the frame body 1 through the filling port 2 to simultaneously form the road surface and the curb. The road curb formed as described above has extremely high strength because the frame body 1 is filled with concrete 16 and integrated with the pavement layer 15. Although not shown, over the plurality of frame bodies 1,
By providing a reinforcing bar penetrating the communication window 6, the road curb can be formed more firmly.

Next, another example of the frame 1 will be described. Figure 3
On the frame body 1a shown in (1), one side surface 17 which is a surface vertical to the road surface is formed. Since the other configurations are the same as those of the frame body 1, the same reference numerals are given and the description thereof will be omitted.
Therefore, the frame body 1a is suitable for use in a place where the one side surface 17 is filled with earth and the like, and the left and right sides of the road curb are formed in different steps. Further, the frame body 1b shown in FIG. 4 is configured such that one end portion in the longitudinal direction is closed to form an inclined end surface 18, and the other configurations are similar to those of the frame body 1. Therefore, it is convenient to use at the end (rise) of the road curb.

[0012]

According to the method for forming a road curb according to the present invention,
The curb-shaped frame is lighter than conventional ready-made concrete curbs, so it can be easily stored and transported, and the curbstone can be easily placed at the desired position on the foundation surface. Since it can be performed, the work content does not require heavy labor to the worker, and the work content does not require a high degree of skill. In addition, since the foundation surface only needs to be created once, and at the stage where the multiple curb-shaped frame bodies have been connected and placed, concrete can be poured simultaneously on the foundation surface and the frame body, which simplifies the foundation work and reduces the construction period. It can be shortened. These things have a great effect on the progress of road construction as a whole.

[Brief description of drawings]

FIG. 1 is a cross-sectional view for explaining a curb floating method of an embodiment.

FIG. 2 is an exploded perspective view showing a frame body and a supporting member of the embodiment.

FIG. 3 is a perspective view showing another example of the frame body of the embodiment.

FIG. 4 is a perspective view showing another example of the frame body of the embodiment.

FIG. 5 is a cross-sectional view for explaining the construction of a conventional curbstone.

[Explanation of symbols]

 1 frame (curbstone frame) 2 inlet (opening) 7 engaging hole 8 leg 9 lower opening 10 support member 14 foundation surface

Claims (1)

[Claims] 1. After digging down the road surface to create a foundation surface,
Arranged at a desired position in a state in which a curb-shaped frame body that is formed to be able to be filled with a flowable material such as fresh concrete and has openings in at least upper and lower portions is floated from the foundation surface through a support member, and then, A method for forming a road curb, characterized in that the fluid material is flowed on the base surface and the frame to form a portion that forms a road surface and a curb.