JP2021102888A - Pedestrian road boundary block - Google Patents

Abstract

To provide a pedestrian road boundary block 1 that includes a foundation part 2 on which electric wire cables 4 are placed on the upper face thereof and a curb part 3 of generally U shape with the lower side open in the cross section placed on the upper face of the foundation part to cover the electric wire cables, which has a configuration that water does not easily enter the mounting area of the electric wire cable 4, even if water w reaches between the upper surface of the foundation part and the lower surface of the curb edge, and has a configuration that facilitates positioning of the curb part 3 with respect to the upper surface of the foundation part 2.SOLUTION: A disclosed pedestrian road boundary block 1 has a foundation part the upper face of which has a convex region 2a protruding upward from the peripheral edge at the portion of the curb part facing the lower opening. Electric wire cables 4 are placed on the convex region and the lower opening of curb part 3 fits into the convex region 2a.SELECTED DRAWING: Figure 1

Description

The present invention relates to a pedestrian road boundary block including a curb that is installed so as to extend to the boundary between a sidewalk and a roadway, and more specifically, a pedestrian road boundary block in which an electric wire cable such as a power cable or a communication cable is stored inside. Related to.

In recent years, in the national and local governments, to improve the landscape, improve the safety and comfort of the passage space by expanding the effective width of the sidewalk, and traffic due to the collapse of utility poles in the event of a disaster such as an earthquake, tornado, or typhoon. In order to prevent the damage caused by the earthquake, the elimination of utility poles that support the electric wires and cables on the ground is being promoted. As one of the measures to eliminate utility poles, it has been proposed to store the electric wires and cables supported on the utility poles in the pedestrian road boundary block. For example, Patent Document 1 proposes to form a curb in a hollow space so that a power transmission line, a telephone line, a water pipe, or the like can be stored in the hollow space. In Patent Documents 2 and 3, a gutter block (trough) is formed along the boundary as a pedestrian road boundary block, and an insole member that separates an upper space and a lower space along the extending direction is arranged in the gutter block. However, a structure has been proposed in which an electric wire cable is housed in the lower space of the gutter block, and the upper space is a drainage channel on the road. In Patent Document 4, in the pedestrian road boundary block, a trough with a lid for accommodating an electric wire cable and a curb are arranged on the lid of the trough, and a drainage passage is formed in a foundation portion of a lower portion of the curb. The structure has been proposed. Patent Document 5 describes a structure in which a drainage channel is integrally formed on a curb arranged at a boundary of a pedestrian road, and Patent Document 6 describes a structure in which an apron is formed on a curb for the purpose of drainage. ing.

JP 2006-97450 JP 2012-136887 JP 2012-158983 JP 2016-36220 JP 2015-108218 JP 2006-291683

When adopting a method of laying electric wires and cables on the ground or burying them in the ground as one of the measures to eliminate electric poles, pipes such as gas pipes, water and sewage pipes, and drain pipes are already buried in the ground. Therefore, it is desirable that the electric wires and cables can be laid so as not to affect the pipes buried in the ground or to move the pipes. Therefore, in Japanese Patent Application No. 2019-223517, which has not been published at the time of filing the application, the applicant of the present application forms a hollow curb portion protruding above the ground of the pedestrian road boundary block, and arranges an electric wire cable in the space inside the curb stone. Proposed a configuration to do. As schematically depicted in FIG. 3A, the pedestrian road boundary block 1 is more specifically a wire cable 4 (plurality) on a foundation portion 2 buried below the pavement surface. The structure is such that a substantially U-shaped curb portion 3 having an opening on the lower side in the cross section is arranged so as to cover the electric wire cable 4. Normally, existing pipes such as gas pipes are not provided under the rim stone, and therefore, according to this configuration, the electric wire cable 4 is arranged without interfering with the existing pipes in the ground. Moreover, since the electric wire cable 4 is arranged in the edge stone portion 3 protruding above the ground, the electric wire cable 4 can be accessed only by removing the pavement portion and removing the edge stone portion 3. This is possible, and an advantage such as easy maintenance of the electric wire cable 4 can be obtained.

By the way, as described above, the electric wire cable 4 is placed on the upper surface of the foundation portion 2 arranged under the ground of the pedestrian road boundary block 1, and the electric wire cable 4 is placed on the curb portion having a substantially U shape in the cross section. In the structure covered by 3, as shown in FIG. 3A, the portion where the electric wire cable is placed on the upper surface of the foundation portion 2 and the portion where the edge of the curb portion 3 is fixed are on the same surface. When the water w reaches between the upper surface of the foundation portion and the lower surface of the edge of the curb portion, the water w may easily infiltrate into the mounting area of the electric wire cable 4. Since it should be avoided that the electric wire cable 4 comes into contact with water or is flooded in such a way, appropriate water stopping measures are required for the mounting area of the electric wire cable. Further, typically, the curb portion 3 covers the electric wire cable 4 and fastens the anchor bolt 5 to the bolt hole 5b in the base portion 2 through the bolt hole 5a drilled in the edge of the curb portion 3. As a result, when the curb portion 3 is placed on the upper surface of the foundation portion 2 where it is fixed to the upper surface of the foundation portion 2, if the upper surface of the foundation portion 2 is a single surface, the electric wire cable 4 is attached to the upper surface of the foundation portion 2. Arranging the curb holes 3 so as to be housed in the portion 3 and aligning the bolt holes 5a of the curb portion 3 with the bolt holes 5b of the base portion 2 can be troublesome and time-consuming work. Therefore, it is advantageous if there is a configuration that enables positioning of the curb with respect to the foundation so as to facilitate the arrangement of the electric wire cable 4 and the alignment of the bolt holes of the curb 3 and the foundation 2.

Thus, one subject of the present invention is the pedestrian road boundary block as described above, in which an electric wire cable is placed on the upper surface of the foundation portion, and a curb having a substantially U-shape in cross section is placed so as to cover the electric wire cable. In the structure in which the opening portion is facing downward and placed on the upper surface of the foundation portion, even if water reaches between the upper surface of the foundation portion and the lower surface of the edge of the curb, the water can easily be placed in the electric wire cable placement area. It is intended to provide a configuration that does not infiltrate into the wire and facilitates the positioning of the curb with respect to the upper surface of the foundation portion.

According to the present invention, the above-mentioned problem is a substantially U-shape having an opening on the lower side in a cross section arranged on the upper surface of the foundation portion on which the electric wire cable is placed and the upper surface of the foundation portion so as to cover the electric wire cable. A pedestrian road boundary block including a curb portion having a shape, wherein the upper surface of the foundation portion has a convex region that protrudes upward from the peripheral portion at a portion facing the lower opening portion of the curb portion. It is achieved by the pedestrian road boundary block in which the electric wire cable is placed on the convex region and the lower opening portion of the curb portion is fitted in the convex region.

In the above, the "pedestrian road boundary block" is a structure that is arranged and installed along the boundary between the road and the sidewalk on the road to provide a curb. In the present invention, the pedestrian road boundary block is provided on a "foundation portion" arranged so as to extend along the pedestrian road boundary in the ground under the ground or a paved surface, and on the upper surface of the foundation portion. The "curb portion" includes a "curb portion" that protrudes upward from the ground or the pavement surface and is arranged so as to extend along the pedestrian road boundary, and the "curb portion" has a substantially U opening on the lower side in the cross section. It is formed in a shape, and with the curb part resting on the foundation part, the electric wire cable, which was previously supported on the electric pole, such as a power cable and a communication cable, is arranged in the hollow area between them. The electric wire cable may be a group of cables composed of a plurality of cables. The curb portion may typically be secured to the top surface of the foundation portion by fastening anchor bolts to the bolt holes in the foundation portion through bolt holes drilled in the edges of the curb portion. Further, the foundation portion and the curb portion may be formed of reinforced concrete.

Then, in the above-mentioned "pedestrian road boundary block", in the present invention, the portion of the upper surface of the foundation portion facing the lower opening portion of the curb portion protrudes upward from the peripheral portion, and the curb stone is formed. A convex region is formed in the cross section so as to fit into the lower opening of the portion. According to this configuration, when the substantially U-shaped curb portion is arranged on the upper surface of the foundation portion with the opening portion facing downward, the opening portion of the curb portion is fitted into the convex region on the upper surface of the foundation portion. The positioning of the curb portion with respect to the upper surface of the foundation portion can be easily achieved. Therefore, by arranging the electric wire cable on the convex region on the upper surface of the foundation portion, it is possible to easily accommodate the electric wire cable inside the substantially U-shape of the curb portion. Further, by fitting the opening portion of the curb portion into the convex region on the upper surface of the foundation portion, the position of the edge of the curb portion is automatically determined with respect to the peripheral edge of the convex region on the upper surface of the foundation portion. Since they will come into contact with each other, by drilling a bolt hole for fastening the anchor bolt to the peripheral edge of the convex region on the upper surface of the foundation that abuts on the edge of the curb, the bolt hole on the edge of the curb and the upper surface of the foundation are formed. Alignment of bolt holes is also easy. Further, since the convex region on which the electric wire cable is placed exists above the contact surface between the edge of the curb portion and the upper surface of the foundation portion, water reaches the upper surface of the foundation portion through the pavement surface. Even if it penetrates between the edge of the curb and the upper surface of the foundation, it is difficult to easily enter the convex area where the electric wire cable is placed, and the water blocking effect on the electric wire cable can be obtained to some extent. There is expected.

Thus, according to the above-described configuration of the present invention, in the pedestrian road boundary block in which the electric wire cable is housed inside the hollow curb, a convex region is formed on the upper surface of the foundation portion. Positioning of the electric wire cable on the upper surface of the foundation portion becomes easy, and when the curb portion is placed on the upper surface of the foundation portion, the convex region of the upper surface of the foundation portion fits into the opening portion of the curb portion, so that the upper surface of the foundation portion is fitted. The curb part can be easily positioned with respect to the ground, and even if water reaches the contact surface between the upper surface of the foundation and the edge of the curb, the water does not easily enter the mounting area of the electric wire cable. Will be obtained. In particular, the foundation and curb are made of heavy materials such as reinforced concrete so that they will not be easily damaged or moved even if they come into contact with the vehicle. The ease of positioning is expected to improve workability in the installation of the pedestrian road boundary block.

Other objects and advantages of the present invention will be apparent from the following description of preferred embodiments of the present invention.

FIG. 1 is a schematic cross-sectional view of a pedestrian road boundary block according to the present embodiment. 2A and 2B are schematic cross-sectional views of the pedestrian road boundary block for explaining the procedure for assembling the pedestrian road boundary block according to the present embodiment. FIG. 3A is a schematic cross-sectional view of a pedestrian road boundary block in which an electric wire cable is housed inside a hollow curb, and the upper surface of the foundation portion is formed on a single surface. FIG. 3B is a diagram schematically showing a state when a curb portion is placed on the upper surface of the foundation portion in a configuration in which the upper surface of the foundation portion is formed by a single surface.

1 ... Pedestrian road boundary block 2 ... Foundation 2a ... Convex area on the upper surface of the foundation 3 ... Curb 3a ... Inside the curb 3b ... Edge of the curb 4 ... Electric wire cable 5 ... Anchor bolt 5a ... Through bolt hole of the curb 5b ... Fastening bolt hole of the foundation part S ... Contact surface between the upper surface of the foundation part and the edge of the curb part w ... Water

Some preferred embodiments of the present invention will be described in detail below with reference to the accompanying figures. In the figure, the same reference numerals indicate the same parts.

Configuration of the Pedestrian Road Boundary Block The pedestrian road boundary block 1 of the present embodiment is arranged along the boundary between the roadway and the sidewalk on the road. In the configuration of the pedestrian road boundary block 1, specifically, along the boundary between the roadway and the sidewalk, the pavement surface (the pavement portion is a pavement applied in a normal manner such as asphalt). The foundation portion 2 is arranged in the ground below the foundation portion 2, and the curb portion 3 protruding upward from the pavement surface is arranged on the upper surface of the foundation portion 2. As shown in the figure, the curb portion 3 of the present embodiment has a structure having a substantially U-shaped cross section that opens downward, and is arranged in contact with the upper surface of the foundation portion 2, whereby the foundation portion 2 has a structure. A hollow region is formed between the upper surface and the curb portion 3. That is, in the pedestrian road boundary block 1 of the present embodiment, the curb is formed hollow. Then, in the hollow region of the curb, an electric wire cable 4 such as a power cable or a communication cable, which was previously supported on a utility pole, is arranged. As shown in the drawing, the electric wire cable 4 may be a bundle composed of a plurality of electric wires, and a conduit is laid in the hollow region of the inner side 3a of the curb portion 3, and the electric wire cable 4 is placed in the conduit. It may be extended. The curb portion 3 is fixed to the upper surface of the foundation portion 2 by penetrating the anchor bolt 5 through the bolt hole 5a drilled in the edge of the curb portion 3 and fastening the anchor bolt 5 to the bolt hole 5b drilled in the upper surface of the foundation portion 2. May be achieved. Typically, the foundation portion 2 and the curb portion 3 may be made of reinforced concrete or the like having reinforcing bars inside so that the foundation portion 2 and the curb portion 3 are not easily moved or damaged even if they come into contact with each other in the installed state. .. Further, the pedestrian road boundary block 1 is prepared in advance at the factory for both the foundation portion 2 and the curb portion 3, and the finished products thereof are transferred to the site where the pedestrian road boundary block 1 is installed, where the pedestrian road boundary block 1 is installed. It may be installed by the method assembled as 1 (precast method). According to the precast method, it is only necessary to install the foundation portion 2 and the curb portion 3 at the installation site of the pedestrian road boundary block 1, which is significantly more than the case where the concrete or cement is hardened on the spot and the curb stone is installed. It is advantageous in that the construction period is shortened and the pedestrian road boundary can be used quickly on the road.

In the pedestrian road boundary block 1 of the present embodiment, the curb portion 3 is arranged so as to cover the electric wire cable 4 on the upper surface of the foundation portion 2, as illustrated in FIG. 3 (A). If the upper surface of the foundation portion 2 is a single surface, the mounting position of the electric wire cable 4 tends to be uncertain when there is no mark on the upper surface of the foundation portion 2, as shown in FIG. 3 (B). , The mounting position of the electric wire cable 4 expands in the lateral direction, and when the curbstone portion 3 is mounted, it may take labor to accommodate the electric wire cable 4 in the hollow region inside the curbstone portion 3. Further, the position of the curb portion 3 with respect to the upper surface of the foundation portion 2 may be easily displaced in the horizontal direction perpendicular to the extending direction of the pedestrian road boundary block 1, and labor is required to position the curb portion 3. Can occur. Further, when fixing the curb portion 3 to the foundation portion 2 by fastening the anchor bolts 5, it is necessary to align the bolt holes 5a drilled in the edge of the curb portion 3 with the bolt holes 5b on the upper surface of the foundation portion 2. At one point, the curb portion 3 is made of reinforced concrete and has a large weight, so that labor is required for the work for aligning the bolt holes 5a and 5b. Then, if the upper surface of the foundation portion 2 is a single surface, as illustrated in FIG. 3A, after the pedestrian road boundary block 1 is installed, the upper surface of the foundation portion 2 and the edge of the curb portion 3 are in contact with each other. When water w reaches the contact surface S and infiltrates between the upper surface of the foundation portion 2 and the edge of the curb portion 3, water may easily infiltrate into the mounting area of the electric wire cable as it is.

Therefore, in the present embodiment, as described above, in order to reduce the labor required for arranging the curb portion 3 on the upper surface of the foundation portion 2, and to obtain the effect of stopping water in the mounting area of the electric wire cable 4 after installation. As shown in FIG. 1, a convex region 2a is formed on the upper surface of the foundation portion 2 so that a portion facing the lower opening portion of the curb portion 3 projects upward from the peripheral portion thereof. Will be done. The convex region 2a is preferably formed so as to fit into the lower opening portion of the curb portion 3. The convex region 2a may be formed in a substantially central portion of the foundation portion 2 in a cross section along a horizontal direction perpendicular to the extending direction thereof, but the present invention is not limited to this (in the cross section, the convex region 2a of the convex region 2a). The widths of the edges on both sides may be different.)

When the convex region 2a is formed on the upper surface of the foundation portion 2 as described above, first, water w on the pavement surface is drawn along the curb portion 3 on the upper surface of the foundation portion 2 as schematically shown in FIG. Even if the contact surface S between the wire and the edge of the curb portion 3 is reached and penetrates between the upper surface of the foundation portion 2 and the edge of the curb portion 3, the mounting area of the electric wire cable 4 is upward in the convex region 2a. Since it is lifted to, it is easy to obtain a water stopping effect that water w does not infiltrate into the mounting area of the electric wire cable 4 (wX).

Further, when the curb portion 3 is arranged, the convex region 2a is fitted into the opening portion of the curb portion 3. Therefore, by arranging the electric wire cable 4 on the upper surface of the convex region 2a, the convex region 2a With the fitting into the opening portion of the curb portion 3, the electric wire cable 4 is automatically accommodated in the hollow region in the curb portion 3, and the labor for accommodating the electric wire cable 4 in the hollow region of the curb portion 3 is reduced. Further, when the convex region 2a is fitted into the opening portion of the curb portion 3, the edge of the curb portion 3 is automatically aligned with the circumference of the convex region 2a. When aligning with the bolt holes 5b, it is expected that there is almost no need to adjust the position of the curb portion 3 in the horizontal direction perpendicular to the extending direction of the curb portion 3, and the bolt holes 5a and 5b are aligned. The effort spent on the work will also be reduced.

Installation of the pedestrian road boundary block In the installation of the pedestrian road boundary block of the present embodiment with reference to FIG. 2 (A), first, the ground serving as the pedestrian road boundary is dug to form a groove, and the groove is formed. The base portion 2 is arranged with the side with the convex region 2a facing upward. After that, the electric wire cable 4 is placed on the upper surface of the convex region 2a, the curb portion 3 is arranged so as to cover the electric wire cable 4 with the opening portion facing downward, and the convex region 2a is placed on the opening portion of the curb portion 3. Fit in. Then, the position of the curb portion 3 in the extending direction with respect to the foundation portion 2 is adjusted to align the positions of the bolt holes 5a and the bolt holes 5b through which the anchor bolts 5 pass, and thus the bolt holes 5a and the bolt holes. Anchor bolts 5 are passed through 5b and fastened to determine the position of the curb portion 3 with respect to the foundation portion 2 (FIG. 2 (B)). The distance between the bolt holes 5a and the distance between the bolt holes 5b in the extending direction of the curb may be formed in advance so that their positions are aligned with each other. According to this configuration, the positions of the bolt holes 5a with respect to the bolt holes 5b are aligned when the convex region 2a is fitted into the opening portion of the curb portion 3 in the horizontal direction perpendicular to the extending direction of the curb. Is expected, and the position of the bolt hole may be adjusted in the extending direction of the curb, so that the labor required for aligning the bolt hole is also reduced.

Although the above description has been made in connection with the embodiments of the present invention, many modifications and modifications can be easily made by those skilled in the art, and the present invention is limited to the embodiments exemplified above. It will be clear that it is not limited and is applied to various devices without departing from the concept of the present invention.

Claims (1)

A pedestrian road boundary block including a foundation on which an electric wire cable is placed and a substantially U-shaped curb portion having an open lower side in a cross section arranged on the upper surface of the foundation portion so as to cover the electric wire cable. The upper surface of the foundation portion has a convex region that protrudes upward from the peripheral edge portion at a portion facing the lower opening portion of the curb portion, and the electric wire cable is placed on the convex region. A pedestrian road boundary block that is placed and in which an opening portion on the lower side of the curb portion fits into the convex region.

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