JP2006299530A - Concrete block for fixing support - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a precast concrete block, the size and weight of which can be reduced, and which is used for installing a support for a traffic sign, a curve mirror, a guard fence or the like. <P>SOLUTION: This concrete block for fixing the support is provided with a block body which has a support fixing hole for fixing the support for the traffic sign, the curve mirror or the like, and an elongated bottom plate which is laterally elongated from below the block body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a precast-type concrete block for installing a pillar such as a road sign, a curve mirror or a guard fence installed mainly on the side of a road.

  Conventionally, as a precast type concrete block for installing a pillar such as a sign, the upper part of the boxed part of the precast block foundation is integrally cast with the concrete of the precast block foundation, and the upper concrete is demolished when the pillar is set up. Some have built a structure such as guard fences and signs. According to this invention, the construction period can be shortened and the construction management / safety management can be made excellent, and as a result, the total cost can be reduced (see Patent Document 1).

However, this precast type concrete block was not made with special consideration for the weight reduction of the block, and was not designed to be small.
JP 2001-295299 A

  Accordingly, the present invention has been made in view of the above problems, and is a precast type concrete for installing pillars such as road signs, curve mirrors, or protective fences that can be reduced in size and weight. To provide a block.

In order to solve the problems as described above, the means taken by the invention according to claim 1 is a precast-type concrete block for installing pillars such as road signs, curve mirrors, protective fences,
A block body having on the upper surface a support fixing hole into which the support is inserted;
A concrete block for fixing columns, comprising: an extended bottom plate extending in a lateral direction below the block main body.

  Further, the means taken by the invention according to claim 2 is the support block fixing concrete block according to claim 1, wherein the extended bottom plate is provided below two adjacent side surfaces. It is.

  Further, according to a third aspect of the present invention, there is provided a concrete block for fixing a support according to claim 1, wherein the extended bottom plate is provided below the three side surfaces. .

  Further, according to a fourth aspect of the present invention, there is provided a concrete block for fixing a support according to claim 1, wherein the extended bottom plate is provided below all side surfaces. is there.

Further, the means taken by the invention according to claim 5 is the concrete block for supporting pillars according to any one of claims 1 to 4, wherein a plurality of pillar fixing holes are provided. is there.
Further, the means taken by the invention according to claim 6 is that the upper surface of the block is formed of an inclined surface having the highest periphery of the hole for fixing the support, and is for supporting the support according to any one of claims 1 to 5. A concrete block.

  Further, the means taken by the invention according to claim 7 is that the upper surface of the block is formed of an inclined surface having the highest periphery of the hole for fixing the column. A concrete block.

  According to the concrete block for fixing columns according to claim 1, since the column fixing holes are provided in advance in the block body, the columns can be erected only by fitting the columns into the columns for fixing columns. The period can be shortened. Further, it is possible to make the column fixing hole larger in diameter than the column and to put the ready concrete in a gap formed between the column fixing hole and the column to perform stronger fixing. Moreover, since the amount of ready-mixed concrete placed in the gap is small, the time until solidification can be shortened.

  The concrete block for supporting pillars according to claim 1 is provided with an extended bottom plate extending laterally below the block main body. Therefore, when the concrete block for supporting pillars is installed in the ground, the extended bottom plate The backfill soil will be placed in Therefore, the extended bottom plate, and thus the block body can be fixed by the weight of the backfilling soil placed on the extended bottom plate. Therefore, it is possible to reliably prevent the support block fixing concrete block from falling or floating. Furthermore, since the fixing force can be increased by using the weight of the backfill soil, the weight of the block body can be reduced and the volume of the block body can be reduced as compared with the conventional case. Become.

  According to the concrete block for fixing pillars according to claim 2, since the extended bottom plate is provided below the two adjacent side surfaces, there is a case where a structure exists on the two side surfaces such as a corner of an intersection. However, it can be installed in contact with these structures.

  According to the concrete block for fixing columns according to claim 3, since the extending bottom plate is provided below the three side surfaces, even if there are structures such as wall surfaces and gutter blocks on one side, these It can be installed in contact with the structure.

  According to the concrete block for fixing columns according to the fourth aspect, since the extended bottom plate is provided on all side surfaces, it is possible to provide a concrete block for fixing columns having the most stable fixing force.

  According to the concrete block for fixing columns according to the fifth aspect, since a plurality of columns for fixing columns are provided, it is possible to continuously install columns for road signs and curve mirrors. In addition, in the case of multiple installations such as protective fences, the columns of adjacent protective fences can be installed close to each other, so that the gap between the protective fences can be narrowed. It becomes like this.

  According to the support block fixing concrete block according to claim 6, since the upper surface of the block is an inclined surface where the periphery of the support fixing hole is the highest, it is possible to discharge rainwater or the like that has fallen on the upper surface toward the support side. Rain water can be prevented from accumulating. Therefore, it is possible to minimize corrosion of the support column due to rust.

  According to the concrete block for fixing pillars according to claim 7, since the block main body is produced in a rectangular parallelepiped, even when a wall surface or a side groove block is installed at a place where the block is installed, it should be placed in contact with these. Can also be installed continuously.

  The best mode for carrying out the concrete block for fixing columns of the present invention will be described. The concrete block for fixing columns of the present invention includes a block main body provided with column fixing holes for fixing the columns and an extended bottom plate for fixing the block main body by placing backfill soil.

  As the block body, concrete is used to form a cube or a substantially rectangular parallelepiped, and a column fixing hole is formed from the upper surface to the lower surface. The size of the block main body is not limited, and the ratio of the vertical, horizontal, and height is not limited. Further, the shape of the support fixing hole is not limited, and may be circular or rectangular. The size of the hole is not limited. What is necessary is just to select suitably according to the diameter of the support | pillar erected. For example, if it is provided in a circular hole having a diameter substantially the same as that of a support column to be erected, it can be erected only by inserting the column. On the other hand, as a round hole larger than the diameter of the column, a gap may be provided between the column and the column fixing hole, and raw concrete may be placed in the gap to fix the block body and the column. The length of the column fixing hole is not limited, and may be provided so as to penetrate from the top surface to the bottom surface or not. Further, the number of support fixing holes to be provided is not limited, and a plurality of support fixing holes may be provided. If a plurality are provided, a plurality of signs, curve mirrors, and the like can be installed on a single concrete block for fixing a support. Further, if two supporting hole fixing holes are provided adjacent to each other, the supporting fences can be continuously installed by standing upright supporting pillars as shown in FIG.

  The upper surface of the block may be provided on a horizontal plane, but it may be provided on an inclined surface in which the vicinity of the column fixing hole is the highest and the periphery thereof is formed low. If such an inclined surface is used, even if it rains, rain water that has fallen on the support can be flowed to the surroundings, and the support can be protected from corrosion due to rust or the like.

  On the other hand, the extended bottom plate extends from the lower side of the block main body toward the lateral outer side. This extended bottom plate is for fixing the block main body using the weight of the backfilling soil placed on the upper surface of the extended bottom plate. The shape of the extended bottom plate is preferably a rectangular flat plate having a large area, but the shape is not particularly limited. Of course, when it interferes with surrounding structures, it may be used by cutting a part of it.

  In addition, the place where the extended bottom plate is provided is preferably provided at the lower end of the block body so as to maximize the weight of the backfill soil, but is not necessarily the lower end, and is provided above the lower end depending on the installation location. You may use things. Further, the extended bottom plate is not necessarily provided on all side surfaces, and may be provided only on one side surface, or on only two side surfaces or only three side surfaces as necessary. For example, if the extended bottom plate is provided on two side surfaces, it can be installed in contact with the structure even when a structure such as a gutter block exists around the corner of the road as shown in FIG. become. Moreover, if it provides in three side surfaces, even if it is a case where structures, such as a gutter block and a retaining wall block, exist in one side surface like FIG. 8, it will come to contact | abut. By providing such a contact, the block body according to the present invention is originally formed smaller than the conventional block size, so the distance from the side surface to the column fixing hole is shorter than the conventional block, The position where the column is erected can be set close to a structure such as a gutter block.

  Furthermore, by providing an extended bottom plate, the support was conventionally supported by the weight of the block, but it was also fixed to the block main body and eventually the block main body using the weight of the backfill soil placed on the extended bottom plate. It will be possible to fix the struts. With this action, conventionally, when determining the size and weight of the block body, rather than determining the weight for the purpose of preventing cracking and breakage due to the force received from the column, from the viewpoint of preventing the block body from moving and falling Although the weight has been determined, according to the present invention, the fixing force for moving and overturning the concrete block for fixing the column can be adjusted by the length of the extended bottom plate, so that the block body prevents cracking and breakage by the column It is only necessary to produce the block body as large as possible. As a result, the block main body can be made smaller and lighter than the conventional one.

Hereinafter, the optimal example of the concrete block for supporting columns will be described with reference to the drawings. 1 is a perspective view of a concrete block 100 for fixing columns according to the first embodiment, FIG. 2 is a plan view of the concrete block 100 for fixing columns according to the first embodiment, and FIG. 3 is a concrete for fixing columns according to the first embodiment. A cross-sectional view of the block 100 is shown.

  The column fixing concrete block 100 according to the first embodiment includes a block main body 10 and an extended bottom plate 20. The block body 10 is provided in a rectangular parallelepiped having a height of 50 cm, a length of 30 cm, and a width of 40 cm. A column fixing hole 11 is provided in the center of the block main body 10 so as to penetrate from the upper surface to the lower surface. The column fixing hole 11 is formed in a circular cross section having a diameter about 6 cm larger than the diameter of the column 30. Furthermore, the upper surface of the block body 10 is provided on an inclined surface such that the periphery of the column fixing hole 11 is the highest and the periphery is low.

  On the other hand, the extended bottom plate 20 is formed in a plate shape having a thickness of 10 cm extending in the lateral direction from all side surfaces of the block body 10 and extending from the block body 10 by 15 cm. By providing this extended bottom plate 20, when it is installed in the ground beside the road, backfill soil is placed on the extended bottom plate 20, and the weight of this backfill soil is used to fix the concrete block 100 for fixing the column. Can be prevented from moving or falling. As a result, the weight of the block main body 10 can be reduced and the block main body 10 can be formed small. That is, conventionally, it was necessary to make a rectangular concrete block of 60 cm in length and 70 cm in width which is the size of the bottom plate, but as described above, if the main body part is made in a rectangular parallelepiped of 30 cm in length and 40 cm in width. It will be enough.

  The concrete block 100 for fixing columns prepared as described above excavates and smoothes the vicinity where a sign, a curve mirror, and the like are installed. Thereafter, if necessary, a foundation is prepared on the bottom by installing a bottom plate or laying crushed stones. Then, after placing the support block fixing concrete block 100, the surroundings are backfilled with backfilling soil and buried in the ground. After that, a sign or a curved mirror support 30 as necessary is fitted into the support fixing hole 11, and ready-mixed concrete is inserted into the gap between the support 30 and the support fixing hole 11 (see FIG. 4). Fix it. After that, necessary signs and curve mirrors are attached to the columns and used as road signs and curve mirrors (FIG. 5).

  FIG. 6 is a perspective view of a concrete block 101 for fixing columns according to the second embodiment. The concrete block 101 for fixing columns in Example 2 is provided with extended bottom plates 20 on three side surfaces. One side surface on which the extended bottom plate 20 is not provided is a flat surface that is flush with the side surface of the block body 10. As shown in FIG. 7, the column fixing hole 11 is formed halfway without penetrating to the bottom surface. Other configurations are the same as those in the first embodiment.

  According to the concrete block 101 for supporting columns according to the second embodiment, the side groove block or the like is laid on the road (see FIG. 8), or even when the retaining wall block is laid, The concrete block 101 for fixing the support column can be laid in a state of being in contact with the retaining wall block. Moreover, since the block main body itself is small compared with the conventional block, a support | pillar can be stood near with respect to structures, such as a gutter block and a retaining wall block.

  FIG. 9 shows a perspective view of a column fixing concrete block 102 according to the third embodiment. The concrete block 102 for fixing columns in the third embodiment is provided with an extended bottom plate 20 on two adjacent side surfaces. That is, the extended bottom plate 20 is not provided, and two side surfaces that are flush with the side surface of the block body 12 are provided adjacent to each other. Other configurations are the same as those of the second embodiment.

  According to the concrete block 102 for fixing pillars according to the third embodiment, as shown in FIG. 10, even if the side groove block or the like is refracted and laid like a corner such as an intersection, The concrete block 102 can be laid while contacting the side groove block. Moreover, compared with the conventional block, a support | pillar can be stood near with respect to structures, such as a gutter block and a retaining wall block.

  FIG. 11 shows a concrete block 103 for fixing columns according to the fourth embodiment. The concrete block 103 for fixing pillars in the fourth embodiment is obtained by providing a square section of the pillar 11 for fixing pillars to the concrete block 100 for fixing pillars described in the first embodiment. Other points are the same as in the first embodiment.

  As the support block fixing concrete block 103 according to the fourth embodiment, a sign or a curved mirror support 30 may be used, as shown in FIG. If this support | pillar 30 is installed and fitted so that it may be located in the corner | angular of the hole of a square cross section (refer FIG. 12), fresh concrete is inserted in the clearance gap between the support | pillar 30 and the support | pillar fixing hole 11, and each will be fixed mutually The support column 30 can be prevented from rotating due to a gap that may occur between the support column 30 and the solidified concrete. In addition, the support | pillar which penetrated such a rod-shaped body is not effective only in this Example 4, and it cannot be overemphasized that Examples 1-3 and 5 can be used.

  FIG. 13 shows a column fixing concrete block 104 according to the fifth embodiment. The concrete block 104 for fixing columns in the fifth embodiment is formed of a block main body having a height of 50 cm, a width of 60 cm, and a length of 30 cm. And two support | pillar fixing holes 11 which penetrate from the upper surface to the lower surface of the block main body 10 are provided in the longitudinal direction. The column fixing hole 11 is formed in a circular cross section having a diameter approximately 6 cm larger than the diameter of the column 30, and the upper surface is the highest at the periphery of the column fixing hole 11 and the periphery is low. The point provided on the inclined surface is the same as that of the first embodiment. On the other hand, the extended bottom plate 20 is a plate having a thickness of 10 cm in the lateral direction from all the side surfaces of the block main body 10 and is provided extending 15 cm.

  As shown in FIG. 14, the concrete block 104 for supporting pillars manufactured as described above is used by inserting the pillars of adjacent protective fences into the fixing holes and fixing them with ready-mixed concrete to stand upright. As described above, according to the column fixing concrete block 103 in the fifth embodiment, the adjacent columns can be installed adjacent to each other, so that the gap between the adjacent protective fences can be narrowed as compared with the conventional case. become.

1 is a perspective view illustrating a concrete block for fixing columns according to Embodiment 1. FIG. FIG. 3 is a plan view illustrating a concrete block for fixing columns according to the first embodiment. It is sectional drawing of the concrete block for support | pillar fixation which concerns on Example 1. FIG. It is a schematic diagram which shows the state which inserts ready-mixed concrete in the state which put up the support | pillar in the concrete block for support | pillar fixation which concerns on Example 1. FIG. It is a perspective view which shows the state which laid the concrete block for support | pillar fixation which concerns on Example 1 on the road. It is a perspective view showing the concrete block for pillar support concerning Example 2. FIG. It is sectional drawing of the concrete block for support | pillar fixation which concerns on Example 2. FIG. It is a perspective view which shows the state which laid the concrete block for support | pillar fixation which concerns on Example 2 on the road. FIG. 10 is a perspective view illustrating a concrete block for supporting columns according to a third embodiment. It is a perspective view which shows the state which laid the concrete block for support | pillar fixation which concerns on Example 3 on the road. FIG. 10 is a perspective view illustrating a concrete block for fixing columns according to a fourth embodiment. It is a perspective view which shows the state which laid the concrete block for support | pillar fixing which concerns on Example 4. FIG. It is a perspective view showing the concrete block for pillar fixing concerning Example 5. FIG. It is a perspective view which shows the state which laid the concrete block for support | pillar fixing which concerns on Example 4. FIG.

Explanation of symbols

100, 101, 102 Prop-fixing concrete block 10 Block body 11 Prop-fixing hole 20 Extending bottom plate 30 Prop

Claims (7)

In precast concrete blocks for installing pillars such as road signs, curve mirrors, protective fences,
A block body having on the upper surface a support fixing hole into which the support is inserted;
A concrete block for fixing columns, comprising: an extending bottom plate extending in a lateral direction below the block main body.   2. The concrete block for fixing columns according to claim 1, wherein the extended bottom plate is provided below two adjacent side surfaces.   2. The support block fixing concrete block according to claim 1, wherein the extended bottom plate is provided below the three side surfaces.   The extended bottom plate is provided below all side surfaces, and the concrete block for fixing columns according to claim 1.   The support block fixing concrete block according to any one of claims 1 to 4, wherein a plurality of support column fixing holes are provided.   The concrete block for supporting pillars according to any one of claims 1 to 5, wherein the upper surface of the block is formed of an inclined surface where the periphery of the hole for fixing pillars is highest.   The block main body is formed in a rectangular parallelepiped, and the concrete block for fixing columns according to any one of claims 1 to 6.

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