JP2017002591A - Foundation block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a concrete foundation block which facilitates smooth installation of a road related facility.SOLUTION: A foundation block comprises: a precast concrete block body buried in the ground to support a road related facility; and an installation section which is mounted on the block body and used for fixing the road related facility to the block body. The road related facility to be fixed to the foundation block includes traffic signs and cameras. Also, the foundation block facilitates smooth installation of the road related facility.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a concrete product used when installing road-related equipment.

  Conventionally, various road-related facilities are provided along the road (see, for example, Patent Document 1). Particularly on highways, camera systems and electronic bulletin boards used as signs are installed more frequently. And on highways, road-related equipment is constantly updated or added in order to make the traffic state smoother. In particular, in recent years, not only signs but also a camera system that controls a part of the network system, and many road-related facilities equipped with various sensors tend to be installed.

  In order to maintain a stable installation state, these road-related equipments are rigidly connected to foundation concrete placed on-site at a position where it cannot interfere with the road (see, for example, Patent Document 2).

  When installing these road-related facilities, it is customary to block the road near the installation location or block the passage of vehicles in some lanes.

JP 2004-316224 A JP 2011-256663 A

  However, the road-related facilities tend to become larger due to the above-mentioned circumstances, especially on the road with a large traffic volume, but on the other hand, the construction must be completed in a limited period such as a certain time at night in view of traffic conditions. Explaining in detail, although it takes a lot of time to place the foundation concrete that increases in size according to the road-related facilities that increase in size, it is necessary to shorten the construction time in order to respond to the traffic situation of the installation location. There is a problem at present. Such a problem appears remarkably on an expressway where it is difficult to provide a detour path at the time of closing.

  The present invention pays attention to such inconveniences and aims to promptly install road-related equipment.

  In order to achieve such an object, the present invention takes the following measures. That is, the basic block according to the present invention includes a block body made of precast concrete embedded in the ground to support the road-related equipment, and a mounting portion provided on the block body for fixing the road-related equipment. It is characterized by becoming.

  Here, “road-related equipment” means road signs, signal lights, street signboards, signs equipped with electric bulletin boards with a function to display various information, as well as the speed of traffic and the length of traffic jams. It is not limited to equipment installed along the lane or in the median strip such as various cameras installed. That is, it includes a quick charging facility for charging an electric vehicle and various other facilities installed to support good traffic of the vehicle.

  If it is such, the placement of the block main body, which is a concrete product, can be performed in advance at a manufacturing factory provided at a different location, not at the installation site of the road-related equipment. Therefore, the installation work of the road-related equipment can eliminate the time for placing and curing the concrete at the installation site, and as a result, contributes to the faster installation of the road-related equipment at the installation site. That is, according to the present invention, it is possible to provide a concrete foundation block capable of quickly installing road-related equipment. In addition, by eliminating the use of ready-mixed concrete at the installation site by applying the present invention, it also eliminates the labor necessary for the management associated with the use of the ready-mixed concrete and the trouble associated with the management, It also contributes to effectively reducing the work scale from manufacturing to installation.

  In addition, regarding the installation of road-related equipment, in order to effectively reduce the work time at the installation site, it is desirable to integrate the block body at the manufacturing stage.

  In addition, in order to facilitate the transportation of the block body and to implement construction according to the situation at the installation site, the block body shall be divided into multiple parts at the manufacturing stage, and those parts should be assembled on site It is desirable to make it. Thereby, a smaller thing can be used for heavy machinery, such as a crane used at an installation site, and a transportation vehicle. As a result, handling of heavy machinery at the installation site is facilitated, contributing to speeding up the construction. In addition, a reduction in the work scale due to the use of miniaturized heavy machinery also produces a synergistic effect such as fuel saving.

  Here, “assembling on site” is not necessarily limited to an aspect of assembling at an installation location. That is, a mode in which a plurality of parts are assembled and integrated in the vicinity of the installation location and then accurately installed at the installation location by a crane or the like is naturally included. Of course, a mode in which the plurality of parts are assembled in advance at the manufacturing plant in which the plurality of parts are installed is also included.

  And in order to be able to perform the operation | work which joins a some part more simply, it is preferable that the block main body shall be provided with the some part divided | segmented up and down or right and left.

  On the other hand, if the block main body includes a core portion provided with a mounting portion and a cover portion that is externally fitted to the core portion with the mounting portion exposed to the outside, a plurality of portions can be simplified. It can join firmly by structure.

  In particular, in order to more reliably perform the fitting between the core portion and the cover portion with a simple configuration, it is desirable that the block body is taper-fitted between the core portion and the cover portion.

  Further, in order to more surely connect the plurality of parts, it is desirable to connect the block main body in a state where the plurality of parts are tightened with PC steel.

  Here, in general, the “PC steel material” is, of course, a PC steel rod mainly composed of a single steel and a PC twisted wire mainly composed of a plurality of steel wires, so-called steel wires. included.

  As one aspect for fixing the road-related equipment to the mounting portion more accurately and firmly, the mounting portion is screwed to the screw rod and a screw rod embedded in the block main body and having a male screw protruding from the block main body. The aspect which has a nut can be mentioned.

  ADVANTAGE OF THE INVENTION According to this invention, the concrete-made foundation block which can install road-related equipment quickly can be provided.

The front view which concerns on 1st embodiment of this invention. The same side view. AA sectional drawing concerning FIG. The other front view which concerns on the same embodiment. Same as above. The figure corresponding to FIG. 2 which concerns on 2nd embodiment of this invention. Explanatory drawing which concerns on 3rd embodiment of this invention. Same as above. Same as above. Same as above. Same as above. Same as above. Explanatory drawing which concerns on 4th embodiment of this invention. The external view which concerns on the same embodiment. The figure shown corresponding to FIG. 2 which concerns on the same embodiment. The other external view which concerns on the same embodiment. Same as above. The side view which concerns on 5th embodiment of this invention. The figure which shows the other side surface which concerns on the embodiment, expanding the principal part. The other side view which concerns on the same embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

<First embodiment>
As shown in FIGS. 1 to 3, the basic block according to the present embodiment is for supporting a road-related facility 3 installed along a road including a central separation zone of an expressway, for example. As the road-related equipment 3, for example, various things such as signs, vehicle speed measuring devices, signals, illumination lights, etc. are applicable. In FIG. The camera equipment which can image | photograph a vehicle with the CCTV camera 31 from the height of 8 m or more is illustrated. And the basic block which concerns on this embodiment has the attachment plate 35 provided in the support | pillar 34 lower side which supports the CCTV camera 31 typically shown in FIG. It is for fixing firmly.

  Therefore, the foundation block according to the present embodiment fixes a block body 1 made of precast concrete embedded in the ground to support the road-related equipment 3 and the road-related equipment 3 provided in the block body 1. It is characterized by comprising the attachment part 2 for doing.

  Hereinafter, a specific configuration of the basic block will be described.

  As shown in the figure, the block main body 1 has a side surface in a state where the upper surface 1a is substantially horizontal by placing the bottom surface 1b on the crushed stone layer S provided in the ground. It is arranged so that substantially the entire area of 1c is buried in the earth and sand D. In addition, in this specification, illustration and description of the bed mortar arranged on the crushed stone layer S are omitted. The block main body 1 is appropriately set so that the road-related equipment 3 has a weight that cannot be laid down under any conditions in consideration of the shape and weight of the road-related equipment 3 to be supported. . The block main body 1 is integrated in advance at the manufacturing stage, and after the concrete has been placed and cured at the manufacturing factory, it is carried into the installation site. The block main body 1 includes a reinforcing bar for maintaining strength together with a part of the mounting portion 2 in a lattice shape, for example. In this specification, for convenience of explanation, the reinforcing bars are arranged in the concrete. All illustrations and detailed descriptions of the reinforcing bars are omitted.

  The attachment portion 2 is mainly composed of an anchor member 21 embedded in advance so as to be integrally formed when the block main body 1 is manufactured in a manufacturing factory. In this embodiment, the mounting portion 2 employs an anchor bolt 21a in which an external thread is processed only on the upper end portion of a cylindrical rod-shaped rod body as the anchor member 21. In addition to the anchor bolt 21a, the mounting portion 2 includes a cord pipe 22 for inserting and protecting various cords including a power cord for connecting to the road-related equipment 3 from below the support column 34, and a block. An anchor frame 23 embedded in the main body 1 for positioning the relative positions of the plurality of anchor bolts 21a, a lower nut 24 screwed or inserted into the male screw portion of the anchor bolt 21a, and a total of two pieces per male screw portion are arranged. A washer 26, a double nut 25 disposed at the top, and a horizontal mortar 27 that is placed between the mounting plate 35 and the upper surface 1 a of the block body 1. have. In this embodiment, the anchor frame 23 is a rectangular frame-shaped metal plate that is arranged in two upper and lower positions so as to position the anchor bolts 21 a at eight locations along a square shape in plan view. A plurality of the anchor frames 23 are arranged in the vertical direction, thereby prohibiting an unnecessary inclination of the anchor bolt 21a. The screwing position with respect to the anchor bolt 21a is finely adjusted at the installation site so that the lower nut 24 is positioned in a state where the height position of the lower nut 24 is adjusted. In this embodiment, the washers 26 are arranged one by one above and below the attachment plate 35 and are provided between the lower nut 24 and the attachment plate 35 and between the double nut 25 and the attachment plate 35, respectively. The double nut 25 is applied with an existing configuration that can be removed as appropriate during replacement or maintenance of the road-related equipment 3 while being firmly screwed from above the mounting plate 35 via the washer 26.

  Next, a procedure for fixing the column 34 for the CCTV camera 31 while keeping the level precisely with respect to the mounting portion 2 will be described. First, the lower nut 24 and one washer 26 are attached to each of the plurality of anchor bolts 21a. Then, by adjusting the vertical position of the lower nut 24, fine adjustment is performed so that the upper surface of the washer 26 on the lower nut 24 takes the same height position. This step can be performed while, for example, an adjustment plate (not shown) provided with eight holes through which the anchor bolt 21a can be inserted is placed on the washer 26 and an existing level device is installed on the plate. . Of course, this step is not limited to the illustrated procedure, and can be performed through other existing procedures. When the position of each lower nut 24 is determined, the mounting plate 35 is placed on the washer 26 from above so that the mounting hole 35a is inserted through the anchor bolt 21a. Thereafter, a single washer 26 and double nut 25 are attached to the anchor bolt 21a from above the mounting plate 35.

  After that, for example, a work such as mounting a rectangular mold around the mounting plate 35 is performed, and the mortar is poured into the upper surface 1a of the block body 1 inside the mold. The mortar becomes a horizontal mortar 27 by being poured to the position of the lower washer 26. Since the horizontal mortar 27 extends right below the mounting plate 35, the horizontal mortar 27 does not interfere with the work of removing the mounting plate 35 after installation. Unlike the above procedure, the horizontal mortar 27 may be provided in advance before the mounting plate 35 is installed.

  On the other hand, as shown in FIG. 4, the mode of the mounting portion 2 according to the present embodiment is not necessarily limited to a mode in which the horizontal mortar 27 or the like is essential. That is, FIG. 4 shows a mode in which an NW camera (network camera) 32 for photographing a vehicle from a height of about 2 m from the ground is installed as the road-related equipment 3 using the basic block according to the present embodiment. . That is, in the figure, in a state where the bottom surface 1b of the block main body 1 is placed on the crushed stone layer S, a state is shown in which the top surface 1a is already kept horizontal with sufficient and sufficient precision.

  As shown in the figure, the mounting portion 2 is arranged with the four anchor bolts 21 a positioned on the anchor frame 23 in accordance with the specifications of the column 34. In the same figure, the mounting plate 35 is placed directly on the upper surface 1a of the block main body 1 that is kept horizontal, and one piece of the male screw portion of the anchor bolt 21a inserted through the mounting hole 35a of the mounting plate 35 is provided. A washer 26 and a double nut 25 are attached. That is, in the figure, the installation of the lower nut 24 and the one washer 26 and the horizontal mortar 27 which ride on the lower nut 24 is omitted. Even in such a case, the road-related equipment 3 can be firmly attached. Moreover, since the use of mortar is excluded as a structure of the attachment part 2 in the aspect of the figure, it contributes to quicker installation of the road-related equipment 3.

  On the other hand, although only the road-related equipment 3 installed along the road is disclosed in FIGS. 1 to 4, as shown in FIG. 5, for example, road-related equipment that can be suitably used in the service area and parking area of an expressway 3 can also be installed by the foundation block which concerns on this embodiment. The figure shows a mode in which a quick charging facility 33 for charging an electric vehicle is installed as the road-related facility 3. As shown in the figure, by appropriately setting the arrangement of the anchor member 21, the anchor frame 23, and the cord pipe 22 with broken lines, it can be suitably adapted to the mode of the road-related equipment 3 to be supported.

  By setting it as the above structures, the basic block which concerns on this embodiment is not the installation site of the road related equipment 3, but the manufacturing plant provided in the different location in place of the block main body 1 which is a concrete product Therefore, it is possible to eliminate the time for placing and curing concrete at the installation site. As a result, the road-related equipment 3 can be installed more quickly at the installation site. That is, according to this embodiment, provision of the concrete foundation block which can perform the installation of the road-related equipment 3 quickly is realized. In particular, in this embodiment, by using the foundation block as a precast product and eliminating the use of ready-mixed concrete at the installation site, the labor necessary for the management accompanying the use of the ready-mixed concrete and the labor associated with the management are also eliminated. This contributes to effectively reducing the work scale from manufacturing to installation.

  In the present embodiment, the block body 1 is integrated at the manufacturing stage in order to effectively reduce the working time at the installation site. As a result, the work time required for transportation from the manufacturing factory to the installation site and installation work at the installation site is reduced.

<Second embodiment>
Hereinafter, other embodiments of the present invention will be described. About each embodiment described below, while attaching the same code | symbol to what corresponds to the component of the said embodiment, the detailed description is abbreviate | omitted. Also in the following embodiments, the same reference numerals are given to the components already described in the previous embodiment, and detailed description thereof is omitted.

  In the basic block according to the above embodiment, the block body 1 is integrated at the manufacturing stage, but of course, the aspect of the block body 1 according to the present invention is not limited to the above embodiment.

  That is, as shown in FIG. 6, in the basic block according to the second embodiment of the present invention, the block main body 1 is divided into a plurality of parts at the manufacturing stage. Then, the upper block 11 and the lower block 12 which are the plurality of parts are assembled at any stage from the site, that is, from the manufacturing plant where the concrete is placed to the installation site where the road-related equipment 3 is installed. It is a thing.

  As shown in FIG. 6, the block main body 1 has an upper block 11 and a lower block 12 which are divided into upper and lower portions with substantially the same dimensions. The upper block 11 is provided with a mounting portion 2 similar to the above embodiment. The lower block 12 is firmly joined from the lower side of the upper block 11 exclusively to give the block body 1 a necessary and sufficient weight.

  Therefore, in this embodiment, the connecting means 4 is provided between the upper block 11 and the lower block 12. The upper block 11 and the lower block 12 are firmly joined by the connecting means 4. In this embodiment, as shown in the figure, the connecting means 4 are intermittently provided, for example, five in the longitudinal direction and two in the short direction, that is, a total of 14 positions, as shown on the side surface 1c of the block body 1. ing.

  The connecting means 4 includes a connecting portion 41 formed in advance on the upper block 11 and the lower block 12, and a connecting bolt 42 and a connecting nut 43 for joining and fixing the blocks 11 and 12 using the connecting portion 41. I have it. The connecting portion 41 includes a connecting hole 41a formed by recessing the side surface 1c, and a plate-like bracket 41b provided in the connecting hole 41a, for example, having an opening. In addition to such a mode, the connection means 4 can apply various existing joining directions such as connection using different connection fittings or mechanical joints. Therefore, in this embodiment, description and illustration of the specific structure and joining method of the connecting means 4 are omitted.

  As described above, in the present embodiment, the block main body 1 is divided into the upper block 11 and the lower block 12 which are a plurality of portions, so that the weight and dimensions are large when the block main body 1 is integrated. In such a case, when it is expected that the transportation to the installation site or the work on the installation site will be hindered, the embodiment can be applied to perform a smooth operation. That is, according to this embodiment, it is possible to use a smaller heavy machine such as a crane or a transportation vehicle used at the installation site. As a result, handling of heavy machinery at the installation site is facilitated, contributing to speeding up the construction. In addition, there are further effects such as saving fuel by using miniaturized heavy machinery.

<Third embodiment>
In the second embodiment, the block main body 1 is configured by firmly connecting a plurality of portions by different means, but of course, it can be firmly connected by the shapes of the plurality of portions.

  That is, the basic block according to the third embodiment of the present invention includes, as shown in FIG. 7, a core block 13 that is a core portion provided with the attachment portion 2, and the core block 13 with the attachment portion 2 exposed to the outside. And a cover block 14 that is a cover portion that is externally fitted. In this embodiment, the core block 13 and the cover block 14 are firmly connected by pouring mortar (not shown) into an annular gap formed between the core block 13 and the cover block 14.

  As shown in FIG. 7, the core block 13 has a support surface 13 a that arranges the mounting portion 2 upward and abuts and supports the cover block 14.

  The cover block 14 is set to a shape that can be externally fitted to the core block 13. It has the pressing surface 14a which presses the core block 13 from upper direction in the state assembled | attached to the core block 13, and the exposed part 14b which can expose the attaching part 2 upwards.

  As shown in an exploded view of the main part in FIG. 8, the attachment portion 2 is an anchor main body 21 b embedded in the core block 13 and a male screw attached to a nut hole 21 d provided in the anchor main body 21 b and protruding from the core block 13. It mainly has an anchor member 21 having a bar 21c and a double nut 25 which is a nut screwed to the male screw bar 21c.

  More specifically, the mounting portion 2 includes an anchor member 21, an intermediate block 28 having a block hole 28a through which the anchor member 21 is inserted, and a washer 26 through which the anchor member 21 is further inserted. The horizontal plate 29 having the plate hole 29a is sequentially placed from the lower side in such a manner that a plurality of screw rods pass therethrough. A washer 26 and a double nut 25 are disposed on the upper side of the horizontal plate 29, and the horizontal plate 29 is configured such that the upper surface thereof is horizontal. In the drawing, the illustration of the mounting plate 35 of the road-related equipment 3 placed on the horizontal plate 29 is omitted. That is, the mounting plate 35 is sandwiched between the lower horizontal plate 29 and the upper washer 26.

  The horizontal plate 29 is adjusted so that the upper surface thereof is horizontal by adjusting the number of washers 26 provided below for each male threaded rod 21c. Accordingly, the upper surface of the horizontal plate 29 can be accurately set horizontally by finely adjusting the thickness dimension of the washer 26 for each of the plurality of male threaded rods 21c in units of millimeters.

  The basic block according to the present embodiment may be configured as follows. The base block shown in FIG. 9 is configured to support a cylindrical cover block 14 with the upper surface of the portion where the lower end of the core block 13 protrudes in the lateral direction as a support surface 13a. That is, the cover block 14 has a lower end surface that is a pressing surface 14 a that comes into contact with the support surface 13 a of the core block 13, and an inner surface that is set as an exposed portion 14 b that exposes the attachment portion 2. In this embodiment, as described above, the core block 13 and the cover block 14 are firmly connected by pouring mortar (not shown) into the annular gap 1 s formed between the core block 13 and the cover block 14. ing.

  Also, as shown in FIG. 10, by making the lower end of the core block 13 protrude further than the aspect shown in FIG. 9, the base end side of the upper surface of the protruded portion is made the same support surface 13a as above, As an urging surface 13c that can support the road-related equipment 3 by using the weight of the earth and sand D by covering the upper surface of the urging portion 13b that protrudes toward the tip side from the cover block 14 with the earth and sand D from above. Yes.

  And the block main body 1 is good also as what made the core block 13 and the cover block 14 taper-fit like the aspect shown in FIG. That is, in the embodiment shown in the figure, the taper support surface 13d is formed by forming the lateral side of the core block 13 in a substantially quadrangular pyramid shape so that the core block 13 and the cover block 14 are tapered. And the aspect which formed the taper press surface 14d which can be fitted in the said taper support surface 13d in the inside of the cover block 14, and formed the exposed part 14b in the upper end of the taper press surface 14d is applied. Moreover, the aspect shown to the same figure is providing the protrusion part 13b and the protrusion surface 13c similarly to the aspect shown in the said FIG.

  As shown in FIG. 12, when the core block 13 and the cover block 14 shown in FIG. 11 are taper-fitted, the lower end surface of the cover block 14 and the core block 13 are arranged so that the taper fitting occurs more firmly when the cover block 14 is free. A gap 1 s is provided between the lower end of the projection surface, that is, the proximal end side of the ejection surface 13 c, even if slightly in the vertical direction. In the embodiment shown in FIG. 12, for example, when the mortar is poured between the exposed portion 14b and the taper support surface 13d and the taper pressing surface 14d in a state where the gap 1s is sealed, the taper fitting is reliably performed. The amount is kept small.

  As described above, in the present embodiment, the block main body 1 is a core block 13 that is a core portion provided with the attachment portion 2 and a cover that is externally fitted to the core block 13 with the attachment portion 2 exposed to the outside. By providing the cover block 14 as a part, the block main body 1 in which the core block 13 and the cover block 14 are firmly joined with a simple configuration is realized.

  In particular, in the present embodiment, as shown in FIGS. 11 and 12, the core block 13 and the cover block 14 are provided with a simple configuration and more reliably so that the core block 13 and the cover block 14 can be fitted. A taper support surface 13d and a taper pressing surface 14d for taper fitting are provided.

<Fourth embodiment>
In each of the above embodiments, the block main body 1 is formed integrally or has two parts. Of course, the number of block main bodies 1 to be divided, in other words, the block main body 1 should be configured. The number of parts to be joined is not limited.

  In 4th embodiment of this invention, the aspect at the time of parting the block main body 1 is shown. First, in FIG. 13, each part which can comprise the block main body 1 is illustrated. That is, the block main body 1 includes a main block 15 having a mounting portion 2 that is the same as the first and second embodiments, a weight block 17 made exclusively of concrete, and a cord from the main block 15 of the mounting portion 2. If the pipe-equipped block 16 having the cord pipe 22 that can be connected to the work pipe 22 is used, various modes can be realized by combining them together.

  The pipe-equipped block 16 is not necessarily essential to the block body 1. That is, as shown in FIG. 14, the main block 15 and the weight block 17 alone can constitute the block body 1. In the figure, a configuration in which weight blocks 17 are arranged on both sides of the main block 15 is shown. In addition, as an aspect which joins these blocks in this embodiment, the aspect etc. which apply the connection means 4 shown in said 2nd embodiment can be mentioned, for example.

  FIG. 15 shows a block main body 1 having the same size as the block main body 1 according to the second embodiment, for example, by connecting the main block 15, the pipe-attached block 16 and the weight block 17 according to the same embodiment in the lateral direction. The realized aspect is shown. In the same figure, the coupling | bonding means 4 similar to the said FIG. 6 has shown the aspect connected by providing over the upper surface 1a and the side surface 1c of the block main body 1. FIG.

  Moreover, the block main body 1 which concerns on this invention is not restricted to the aspect which joins a some part to the up-down direction and the left-right direction in a line. That is, FIG. 16 uses a main block 15 and a block 16 with pipes one by one, and seven weight blocks 17 are joined around the main block 15 and three parts in the left and right direction and the front and rear direction. Thus, a mode in which the block body 1 is configured is shown.

  FIG. 17 shows a mode in which the block main body 1 is configured by a total of eighteen blocks, that is, by adding nine weight blocks 17 in the downward direction and joining them in addition to the mode shown in FIG. Yes.

  As described above, the number of parts formed by dividing the block body 1 is not limited at all. On the contrary, by appropriately adjusting the joining direction and number of the parts constituting the block main body 1, the dimensions and weight of the block main body 1 and the outer shape can be freely adjusted according to the size of the road-related equipment 3 and the environment of the installation location. Can be set.

<Fifth embodiment>
In each said embodiment, when attaching the road related equipment 3 in the attachment part 2, the anchor member 21 with which one part was embed | buried under the block main body 1 was used, However, The aspect of the attachment part 2 is not restricted to the thing of the said embodiment. . In FIG. 18, as a mode of fixing the mounting plate 35 in the mounting portion 2, a mode of fixing by the fastening means 5 using the unbonded PC steel material 51 is shown.

  In the present embodiment, the fastening means 5 uses an unbonded PC steel material 51 previously set when the single block main body 1 is placed, as shown in the figure, and pulls the mounting plate 35 toward the upper surface 1a of the block main body 1. In addition, prestress for compressing the block main body 1 and the horizontal mortar 27 in the vertical direction is introduced. 18 to 20 which are the same drawing and the subsequent drawings, the inside of the fastening hole 52 for attaching the fastening means 5 is shown to be exposed to the outside. After the non-shrinking mortar is filled, the tightening means 5 is concealed from the outside to prevent intrusion of earth and sand D and rainwater by applying a predetermined process such as applying an epoxy resin to the surface.

  In the drawing, the fastening means 5 includes the unbonded PC steel material 51, and a fastening hole 52 formed by denting the block main body 1 on the bottom surface 1b exposing the end of the unbonded PC steel material 51 in the block main body 1. It has mainly. In addition to the unbonded PC steel material 51 and the tightening hole 52, the tightening means 5 includes an anchor plate 54 disposed in the tightening hole 52 and a tightening member that is inserted into the end of the unbonded PC steel material 51 to press the anchor plate 54. A washer 56 and a tightening nut 55 screwed to the end of the unbonded PC steel material 51 are provided.

  The unbonded PC steel material 51 has a configuration in which a steel material having a surface coated with grease, asphalt polymer, or the like is covered with a tubular sheath (not shown) in the block body 1. And it arrange | positions so that only the said steel material may be exposed in the edge part of the unbonded PC steel material 51, ie, the location exposed inside the fastening hole 52, and the exterior of the block main body 1. FIG. Of course, the end of the steel material is processed with a male thread. The unbonded PC steel material 51 covered with the sheath allows the inner steel material to slide relative to the sheath along the axial direction, that is, the extending direction. Here, in general, in the unbonded PC steel material 51, in addition to the above-mentioned slide movement, there are those that can rotate around the axis within the sheath and those that cannot rotate. In this embodiment, you may use what cannot rotate. Further, in the present embodiment, the anchor plate 54 is embedded in advance when the block main body 1 is placed, but of course, the anchor plate 54 may be retrofitted to the tightening hole 52 after the block main body 1 is placed. As shown in the figure, the mounting plate 35 of the road-related equipment 3 has a structure that also serves as a plate to be fastened to the unbonded PC steel material 51.

  As shown in FIG. 19, the upper block 11 and the lower block 12 can be connected using the tightening means 5 in the same manner as the embodiment shown in FIG. 6 in the second embodiment. In the same figure, the lower block 12 shows the structure in which the unbonded PC steel material 51 is arranged in the same manner as in FIG. 18, and the PC steel material 50 that is not the unbonded PC steel material 51 is arranged in the duct 53 inside the upper block 11. The end portions of the unbonded PC steel material 51 and the PC steel material 50 are connected to each other by a coupler 57 in a space where the fastening holes 52 provided in the upper block 11 and the lower block 12 are continuous, and an anchor plate provided in the upper block 11. 54 is provided with a grout hole 54a, as shown in the enlarged view of part B. By using the grout hole 54a, a grout (not shown) is filled in a space in which the duct 53 containing the PC steel material 50 and the tightening hole 52 are vertically continuous. In the center of the figure (not shown), the duct 53 containing the PC steel material 50 that fixes the mounting plate 35 and the space in which the fastening holes 52 are vertically connected are grouted before the horizontal mortar 27 is placed, for example. It may be injected.

  Further, as shown in FIG. 20, the main block 15, the pipe-attached block 16, and the weight block 17 can be connected using the tightening means 5 in the same manner as the embodiment shown in FIG. 15 in the fourth embodiment. In the figure, tightening holes 52 and ducts 53 are provided in these blocks 15, 16, and 17, respectively, and anchor plates 54 having grout holes 54a are disposed in the tightening holes 52 at both ends in the figure. At the installation site, the PC steel materials 50 are arranged in these ducts 53, respectively, and these are connected by two couplers 57, and fastening washers 56 and fastening nuts 55 are attached from both ends and tightened. In addition, a grout (not shown) is injected from a grout hole 54a provided in one of the anchor plates 54 until it is ejected from the grout hole 54a on the other anchor plate 54 side. In this way, the grout is filled into the internal duct 53 and the tightening hole 52. As described above, the tightening holes 52 exposed at both ends are subjected to predetermined processing such as epoxy resin applied to the surface after filling with shrink mortar.

  However, in the case of connecting the blocks 15, 16, and 17 as shown in the figure, the PC steel material 50 arranged in each of the blocks 15, 16, and 17 is a separate body, and they are connected by a coupler 57 or the like. It is not limited to. That is, it is possible to adopt a mode in which a long continuous PC steel material 50 that is not divided into left and right is arranged so as to penetrate each of the blocks 15, 16, and 17. In that case, the coupler 57 for connecting the PC steel material 50 and the tightening hole 52 in the intermediate portion shown in the figure used for arranging the coupler 57 are not necessary.

  As described above, in this embodiment, the block main body 1 is divided into the upper block 11 and the lower block 12, or the main block 15, the block with a pipe, which are a plurality of portions, in order to more surely combine the plurality of portions. 16 and the weight block 17 are connected in a tightened state by a PC steel material 50 and / or an unbonded PC steel material 51, respectively.

  Although the embodiment of the present invention has been described above, the specific configuration of each unit is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, an aspect in which an electric cord for power supply is arranged as one aspect of the mounting portion is disclosed. Of course, this electric cord is not only a power supply to road-related facilities, but also a wired data communication network. Various wiring that governs the system is also included. Moreover, although each said embodiment disclosed the aspect of the attachment part which attaches one road related equipment per one foundation block, of course, the aspect which has several attachment parts in order to attach a some road related equipment per one foundation block Correspondence between the block main body and the mounting part, such as a block main body and a supporting part that can support one road-related facility by a plurality of basic blocks, or a single mounting part configured across a plurality of block main bodies The relationship can be variously selected depending on the situation. Further, the specific modes of the tightening means and the connecting means, and the detailed dimensions and shapes of the block main body are not limited to those of the above-described embodiment, and various modes including the existing ones are applied. Can do.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  The present invention can be used as a concrete product used when installing road-related equipment.

DESCRIPTION OF SYMBOLS 1 ... Block main body 11 ... Upper block 12 ... Lower block 13 ... Core part (core block)
14 ... Cover part (cover block)
DESCRIPTION OF SYMBOLS 2 ... Mounting part 3 ... Road-related equipment 31 ... CCTV camera 32 ... NW camera 33 ... Rapid charging equipment 4 ... Connection means 50 ... PC steel 51 ... Unbonded PC steel

Claims (8)

A block body made of precast concrete buried in the ground to support road-related equipment,
A base block comprising an attachment portion provided on the block body for fixing the road-related equipment. The basic block according to claim 1, wherein the block body is integrated in a manufacturing stage. The basic block according to claim 1, wherein the block main body is divided into a plurality of parts at a manufacturing stage, and those parts are assembled on site. The basic block according to claim 3, wherein the block main body includes a plurality of parts divided vertically and horizontally. The foundation according to claim 3, wherein the block main body includes a core portion provided with the attachment portion, and a cover portion that is externally fitted to the core portion in a state where the attachment portion is exposed to the outside. block. The foundation block according to claim 5, wherein the block main body is a taper fit between the core portion and the cover portion. The basic block according to claim 3, 4, 5, or 6, wherein the block main body is formed by connecting the plurality of portions in a state of being tightened with a PC steel material. The mounting portion includes a screw rod embedded in the block main body and having a male screw protruding from the block main body, and a nut screwed into the screw rod. The basic block according to 5, 6 or 7.

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