JP2021102885A - Sidewalk-roadway boundary block - Google Patents

Abstract

To make the width from the edge of a curb on a road side to the edge of a guard fence on a sidewalk side as small as possible when a guard fence is erected on the sidewalk side along the curb in a sidewalk-roadway boundary block 1 including a foundation arranged below the ground and a curb part placed on the foundation and protruding above the ground.SOLUTION: In a sidewalk-roadway boundary block 1 of the present invention, a hollow part 3h is formed through which a support post P, erected in a substantially vertical direction of a guard fence installed so as to extend along the sidewalk-roadway boundary block, is inserted at a part of an edge of a curb part 3 in a direction perpendicular to its extending direction.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 the sidewalk and the roadway, and more particularly to a pedestrian roadway boundary block accompanied by a guard fence or the like.

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. 2C, 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, at the boundary of the pedestrian road, vehicles such as guardrails and guard pipes often enter the sidewalk or pedestrians jump out to the roadway, as schematically shown in FIG. 2 (A). A guardrail will be installed adjacent to the curb to prevent this from happening. In such a guard fence, as shown in the figure, usually, on the sidewalk side of the pedestrian road boundary, a rail or a pipe R is provided at the pedestrian road boundary with respect to the columns P which are erected substantially vertically on the ground at appropriate intervals. It has a structure that is attached and supported so as to extend along the line, and the support column P is inserted by a support base B whose lower end is buried in the ground, as schematically shown in FIG. 2 (B). It is built in the same state as it was. Regarding the construction of such a protective fence, when the electric wire cable or the like is not stored inside the curb as in the conventional curb, the width of the curb is relatively narrow, and therefore, the support base is adjacent to the curb. Even if B is buried and the pillar P of the guard fence is erected, the width w from the edge of the curb on the road side to the edge of the guard fence on the sidewalk side does not become so large, as shown in FIG. 2 (B). In the case of a configuration in which the electric wire cable 4 and the like are housed inside the curb portion 3 of the pedestrian road boundary block 1, the width of the curb portion 3 is larger than before (the curb portion and the foundation portion are the curb stones of the vehicle). It is formed to be large enough to prevent destruction and overturning due to collision with the curb.) If the support base B is buried there and the support fence support P is erected, from the edge of the curb on the road side. The width w to the edge of the guard fence on the sidewalk side becomes relatively large, and the width of the sidewalk is narrowed accordingly. Therefore, in the case of a curb that houses electric wires and cables inside, when the support fence support P is erected, the width from the edge of the curb on the road side to the edge of the guard fence on the sidewalk side should be as small as possible. Therefore, it is advantageous if there is a configuration that can secure a large width of the sidewalk.

Thus, one problem of the present invention is that in the above-mentioned pedestrian road boundary block, when a guard fence is erected on the sidewalk side along the curb, from the edge of the curb on the sidewalk side to the edge of the guard rail on the sidewalk side. Is to provide a new configuration that minimizes the width of.

According to the present invention, the above-mentioned problem is a pedestrian road boundary block including a foundation portion arranged below the ground and a curb portion placed on the foundation portion and protruding above the ground. At a part of the edge of the curb portion in the direction perpendicular to the extending direction, a column erected in a substantially vertical direction of a guard fence installed so as to extend along the pedestrian road boundary block is inserted. Achieved by the pedestrian road boundary block where the lightened portion is formed.

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, and in the present invention, it is a structure. A "foundation" arranged below the ground so as to extend along the pedestrian road boundary, and above it, arranged so as to project above the ground and extend along the pedestrian road boundary. Including the "curb part". 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. Further, the curb portion is formed in a substantially U shape that opens downward in the cross section, and a hollow space is formed inside the curb portion in a state where the curb portion is placed on the foundation portion, and the hollow space is formed. An electric wire cable, such as a power cable or a communication cable, which was previously supported on a utility pole, may be arranged in this area. The electric wire cable may be a group of cables composed of a plurality of cables.

In such a "pedestrian road boundary block", in the present invention, as described above, a vehicle such as a guardrail, a guard pipe, etc. enters the sidewalk or walks so as to extend along the pedestrian road boundary block. Where a "guard rail" is installed to prevent a person from jumping out onto the roadway, it is perpendicular to the extension direction of the curb in order to insert a support that can be erected in the approximately vertical direction of the guard rail. A lightened portion is formed at a part of the edge in the same direction, and a support fence support is inserted through the lightened portion. As one of the specific aspects of the lightened part of the curb part, in the foundation part arranged under the curb part, the support that receives the support at the part that contacts the edge of the curb part on the upper surface thereof. A receiving hole is formed, and at the edge of the curb portion, the material of the portion through which the strut to be inserted into the strut receiving hole on the upper surface of the foundation portion passes is removed, for example, along the outer contour of the strut. Good. Alternatively, in another aspect, a part of the edge of the curbstone portion may be perforated (may be lightened) so that a strut receiving hole for receiving the strut is formed on the edge of the curbstone portion itself.

According to this configuration, the foundation or curb of the pedestrian road boundary block functions as a support base for the support of the guard rail, and the support extends substantially vertically across the edge of the guard rail. The width from the edge of the curb on the road side to the edge of the guard rail on the sidewalk side can be reduced compared to the configuration in which the support base of the pillar is buried adjacent to the pedestrian road boundary block as a separate body. Therefore, the width of the sidewalk can be widened.

Thus, according to the above-described configuration of the present invention, the support base of the guard rail support is integrally formed with the pedestrian road boundary block, whereby the pedestrian road boundary block is installed to support the guard rail support. Since the support base will also be installed, the labor for installation and construction will be reduced. The configuration of the present invention is particularly advantageous for a configuration in which an electric wire cable or the like is housed inside the curb and the width of the curb is increased by that amount, but the electric wire cable is arranged inside the curb. It may be applied if not, and it should be understood that such cases also fall within the scope of the present invention.

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

1 (A) to 1 (D) are a schematic cross-sectional view and a top view of a pedestrian road boundary block according to the present embodiment. (A) is a cross-sectional view in the case where a support hole for receiving the support of the guard fence is formed in the foundation portion, and (B) is a top view thereof. (C) is a cross-sectional view in the case where a support hole for receiving the support of the guard fence is formed in the curb portion, and (D) is a top view thereof. FIG. 2A is a schematic view illustrating a state in which guardrails, guard pipes, and other guard fences are installed along the curb at the boundary of the pedestrian road. FIG. 2B is a schematic cross-sectional view of the vicinity of the curbstone on which the support fence columns are built adjacent to each other, and FIG. 2C is the curbstone portion of the pedestrian road boundary block 1. 3 is a schematic cross-sectional view of the vicinity of the pedestrian road boundary block 1 when the columns of the guard fence are installed adjacent to each other in the configuration in which the electric wire cable 4 and the like are housed inside the 3.

1 ... Pedestrian road boundary block 2 ... Foundation 2h ... Support hole 3 ... Curb 3h ... Notch for receiving support or support hole 4 ... Electric wire cable 5 ... Anchor bolt P ... Support R ... Guard pipe or guardrail B ... Support base for columns

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 Pedestrian Road Boundary Block The pedestrian road boundary block of the present embodiment is arranged along the boundary between the roadway and the sidewalk on the road. With reference to FIGS. 1 (A) to 1 (D), in the configuration of the pedestrian road boundary block 1, specifically, a paved surface (paved portion) on the ground along the boundary between the road and the sidewalk. Is due to pavement applied in a normal manner such as asphalt.) A foundation portion 2 is arranged in the ground below the pavement, and the upper surface of the foundation portion 2 projects upward from the pavement surface. The rim stone portion 3 to be used may be arranged. As shown in the figure, in the present embodiment, the curb portion 3 has a substantially U-shaped cross-sectional structure that opens downward, and is arranged in contact with the upper surface of the foundation portion 2. , A hollow region is formed between the upper surface of the foundation portion 2 and the curb portion 3, and in the hollow region of the curb, an electric wire cable 4 which was previously supported on a utility pole such as a power cable or a communication cable is arranged. It's okay. 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 a hollow region inside the curb portion 3, so that the electric wire cable 4 extends in the conduit. It may be. Fixation of the curb portion 3 to the upper surface of the foundation portion 2 is achieved by penetrating the anchor bolt 5 through the bolt hole drilled in the edge of the curb portion 3 and fastening the anchor bolt 5 to the bolt hole drilled in the upper surface of the foundation portion 2. However, it is not limited to this (see FIGS. 1B and 1D). 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. .. The foundation portion 2 is preferably formed so that the total weight is, for example, about 0.5 ton / m or more so as not to tip over due to an external force acting on the curb. 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.

Configuration of support for the support of the support fence of the guard fence In the above-mentioned pedestrian road boundary block 1, a guard fence such as a guardrail or a guard pipe is further attached to the pedestrian road boundary as in the case illustrated in FIG. 2 (A). It will be installed on the sidewalk side. Such a guard fence is composed of a support column P that stands upright in a substantially vertical direction at an appropriate interval, and a pipe material R that extends in a substantially horizontal direction along the pedestrian road boundary at the support column P. The member stretched between the columns P may be a rail material, a chain, a rope, a plate material, or the like. Previously, the support fence support P was supported by being inserted through a support base B buried on the sidewalk side of the pedestrian road boundary block 1 as shown in FIGS. 2 (B) and 2 (C). In the present embodiment, a hole (support receiving hole) for receiving the support column P is formed in the base portion 2 or the curb portion 3 of the pedestrian road boundary block 1, and the support column P is the support receiving hole. It is supported through the insertion and stands upright.

Specifically, in one embodiment, as shown in FIGS. 1A and 1B, the foundation portion 2 is formed so as to extend to the sidewalk side from the placement area of the curb portion 3. (Left in the figure), a support receiving hole 2h is formed in the upper surface of the expanded portion, and a support column P is inserted through the support receiving hole 2h to support the support so as to stand upright. Here, the support receiving hole 2h may be formed at a portion where the edge of the curb portion 3 abuts, and in that case, the material of the portion overlapping the support receiving hole 2h at the edge of the curb portion 3 is removed and cut. The notch 3h may be formed. In the notch 3h, the material may be cut along the outer contour of the support column P received in the support receiving hole 2h (the cross-sectional shape of the support column P is not limited to a circle, but may be a triangle or a quadrangle. .). Further, in another aspect of supporting the support column P, as shown in FIGS. 1C and 1D, the sidewalk-side edge of the curb portion 3 is formed by expanding in the horizontal direction and the vertical direction. (Left in the figure), a support receiving hole 3h may be formed in the upper surface of the expanded portion, and a support column P may be inserted through the support receiving hole 3h so as to be supported so as to stand upright.

According to the configuration in which a support receiving hole is formed in the base portion 2 or the curb portion 3 of the pedestrian road boundary block 1 as described above and the support column P is supported so as to stand upright there, the pedestrian road boundary block 1 is a support base. It will also have the function of B, and the width from the edge of the curb on the road side to the edge of the guard fence on the sidewalk side will be narrower than when the support base B is buried separately from the pedestrian road boundary block 1. It is possible to make the width of the sidewalk wider by that amount. As shown in the figure, such a configuration is advantageously applied to a configuration in which an electric wire cable or the like is housed inside the curb and the width of the curb is increased, but it may be applied to a solid curb. It should be understood that the case also belongs to the scope of the present invention.

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 portion arranged below the ground and a curb portion placed on the foundation portion and protruding above the ground, in the extending direction of the curb portion. At a part of the vertical edge, a lightened portion is formed through which a column standing substantially vertically of the guard fence installed so as to extend along the pedestrian road boundary block is inserted. Pedestrian road boundary block.

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