JP2021011693A - Block with fence and construction method thereof - Google Patents

Abstract

To provide a block with fences capable of adapting to a construction of a rectangular tree-planting band in plan view, and capable of easily assembling and constructing block units and a fence body transported to the site, and a construction method thereof.SOLUTION: A block with fences 1 of the present invention is rectangle in plan view. A plurality of linear concrete units 2A, 2B having burying holes 20 are disposed on right and left ends of a front end of a tree-planting band 9. Trapezoidal corner concretes in plan view 3 are disposed on left and right end of the tree-planting band 9, and a support portion 4 surrounding the tree-planting band 9 is formed. A fence body portion 8 is formed by vertical rods 5 erected in the holes 20 of the linear concrete units 2A, 2B, horizontal rods 6 extending laterally from upper ends of the vertical rods 5, and connection rods 7 connecting the two horizontal rods 6, 6 disposed in a crossed-shape. The horizontal rods 6 or the connection rods 7 of the fence body portion 8 are disposed above all of the concrete units 2A, 2B and 3 forming the support portion 4.SELECTED DRAWING: Figure 1

Description

The present invention relates to a block with a fence, which can be applied to the construction of a tree planting zone having a rectangular shape in a plan view, and can easily assemble and construct a block unit and a fence body transported to the site, and a construction method thereof.

The "tree planting zone" installed on the border of the sidewalk is a curb for planting trees with the main purpose of "improving a good road traffic environment or ensuring a good living environment along the road". It is defined as "a strip of road that is divided by lines, fences, and other similar structures."
The current construction method for this tree planting zone is as follows.
First, install a row of trees (tree planting zone block).
Next, a protective fence is attached and a foundation block is installed (digging about 40 to 50 cm of soil and embedding the block).
After that, a protective fence is put in a predetermined hole and mortar is poured.
In addition, a method of assembling the formwork and placing concrete at the site was also adopted. For example, if the formwork is assembled in advance at different construction sites and concrete is supplied (cast) to different construction sites one after another using a mixer truck or the like, a wide range of tree planting zones can be formed almost at the same time. is there.

However, the method of constructing the tree-planting zone has a problem that the tree-planting zone block and the protective fence are separately installed.
In addition, the method of placing concrete using a mixer truck or the like requires a large heavy machine, so it is necessary to maintain the state in which the formwork is installed at different construction sites, and moreover, multiple construction sites. Was a construction method that had to be close. That is, this construction method requires road regulation and late-night work, and although it can be said to be effective under the above-mentioned special conditions, it has not been widely applicable under various conditions.

In recent years, a construction method of transporting a concrete unit surrounding a tree planting zone produced in a factory or the like to a site has already been carried out, and there is an advantage that it can be constructed with a relatively small heavy machine.
However, in this method, each concrete unit is formed in an arc shape in a plan view and is used for a tree planting zone having a circular shape in a plan view, and cannot correspond to a tree planting zone having various plan views. It was. Moreover, although the foundation part surrounding the tree planting zone is formed by a plurality of concrete units, in order to construct the fence, a post-construction work of digging a hole and attaching the fence body was required.

Therefore, the present invention proposes a block with a fence, which can be applied to the construction of a tree-planting zone having a rectangular shape in a plan view, and a block unit and a fence body transported to the site can be easily assembled and constructed, and a construction method thereof. The purpose is.

The present invention has been proposed in view of the above. A plurality of linear concrete units having a rectangular shape in a plan view and having holes for burying are arranged at the front end and the side end of the tree planting zone, and the plan view is trapezoidal. The corner concrete units are arranged at the left and right ends of the front end of the tree-planting zone to form a support portion surrounding the tree-planting zone, and a vertical rod standing in a hole of the linear concrete unit and an upper end of the vertical rod. A fence body portion is formed by a horizontal rod extending laterally from the side and a connecting rod connecting two horizontal rods arranged in an intersecting manner, and the fence is above all the concrete units forming the support portion. It relates to a block with a fence, which is characterized in that a horizontal concrete or a connecting concrete of a body part is arranged.
Hereinafter, the concrete unit is simply referred to as a unit.

Further, in the present invention, in the block with a fence, a connecting groove into which a connecting plate can be inserted is formed on the end faces of the linear unit and the corner unit, and the linear units and the linear unit are formed. We also propose a block with a fence, which is characterized in that the square unit and the corner unit are joined by the connecting plate and the adhesive to be filled.

Further, the present invention is a method of constructing a block with a fence, in which the linear unit is arranged so as to abut along the front end and the side end of the tree planting zone on the base forming the tree planting zone. The first step of arranging the corner units at the left and right ends of the front end of the tree planting zone, and the second step of joining the linear units to each other and the linear unit and the corner unit. A vertical rod is erected (inserted) in a hole for burying the linear concrete unit so that a horizontal rod or a connecting rod of the fence body portion is arranged above each unit of the formed support portion. It also proposes a method of constructing a block with a fence, which is characterized by performing a third step of fixing the concrete.

In the block with a fence of the present invention, both the linear unit and the square unit forming the support portion have a simple configuration, and the vertical rod, the horizontal rod, and the connecting rod forming the fence body portion each have a simple configuration. , The construction material can be easily produced. Further, in the construction of erection of the fence body portion on the support portion, since only a vertical rod is erected in the burial hole of the linear unit, it is extremely easy to integrally attach the fence to the plan view. A tree-planting zone of the shape can be constructed.
By increasing or decreasing the number of linear units arranged, the width of the tree-planting zone to be constructed can be easily expanded (= horizontally long) and reduced. Therefore, it can be appropriately used for new construction and repair work of various tree-planting zones. it can.

Further, a connecting groove into which a connecting plate can be inserted is formed on the end faces of the linear unit and the corner unit, and the linear units and the linear unit and the corner unit are bonded to each other and filled with the connecting plate. When joining with materials, the units can be easily and firmly connected to each other.

Further, the method for constructing a block with a fence of the present invention can easily perform new construction and repair of various rectangular tree planting zones in a plan view as described above.

(A) A plan view schematically showing a support portion of the fenced block according to the first embodiment of the present invention, (b) a plan view schematically showing a state in which the fence body portion is attached to the support portion, (c). A plan view showing two types of linear units, (d) a plan view showing a square unit, (e) a front view showing a vertical rod and a horizontal rod erected on the linear unit (two types), (f). It is a plan view which shows the connecting rod, and (g) is the enlarged sectional view which shows typically the connecting part which connects the linear units. (A) A plan view schematically showing a part other than the fence body portion of the fenced block according to the second embodiment of the present invention, (b) an enlarged front view showing the linear unit (No. 1 block) used, and a side view thereof. , (C) An enlarged front view showing the linear unit (No. 2 block) used, and a side view thereof, (d) an enlarged plan view showing the corner unit used, and a side view thereof.

In the fenced block of the present invention, a plurality of linear units having a rectangular shape in a plan view and having holes for burying are arranged at the front end and the side end of the tree planting zone, and a square unit having a trapezoidal view in a plan view is provided. , A support portion surrounding the tree-planting zone is formed at the left and right ends of the front end of the tree-planting zone, and a vertical rod standing in the hole of the linear unit and extending laterally from the upper end of the vertical rod. A fence body portion is formed by a horizontal rod and a connecting rod connecting two horizontal rods arranged in a cross shape, and the horizontal rod or the connecting rod of the fence body portion is above all the units forming the supporting portion. Is placed.

As described above, the linear unit forming the support portion in the present invention has a rectangular shape in a plan view and has a hole for burying, and is a concrete unit arranged at the front end and the side end of the tree planting zone. Therefore, the concrete composition is not particularly limited. The buried hole is a hole for burying the lower end of the vertical rod of the fence body, and may have a circular hole shape or a rectangular hole shape.
As the linear unit, it is desirable to prepare two types having different dimensions as shown in the illustrated examples described later. The linear unit in the illustrated embodiment has a prismatic shape in which the connecting end face is formed in a substantially rectangular shape (the upper surface, the lower surface, and the side surface are horizontally long rectangular shapes), but may be cylindrical, for example, and is not particularly limited. Absent. The connecting end face in this linear unit refers to the end face in the length direction.

Next, the corner unit forming the support portion in the present invention is a concrete unit having a trapezoidal shape in a plan view and arranged at the left and right ends of the front end of the tree planting zone, and the concrete composition is particularly limited. is not it. As described above, the horn units are arranged at the left and right ends of the front end of the tree planting zone, but one type may be prepared (can also be used) by forming them symmetrically. The connection end face in this corner unit refers to an end face corresponding to the hypotenuse in a trapezoidal plan view.

When the tree planting zone is U-shaped, the support portion is formed by a plurality of linear units and two corner units. If the tree-planting zone is square-shaped, four square units are required, but since they can also be used as described above, each can be handled by one type. Further, it is desirable to prepare two types of linear units having different dimensions as described above, and if the dimensions are too small than necessary, it is necessary to arrange a large number of linear units, which is troublesome for construction. Is increased and is not desirable in terms of stability.

The support portion is formed by joining the linear units and the linear unit and the corner unit.
When a connecting groove into which a connecting plate can be inserted is formed on the connecting end surface of each unit, a connecting plate (for example, an iron plate) is interposed in the connecting groove and filled with an epoxy adhesive to strengthen the connection. Can be connected.

Further, the vertical rod in the fence body portion in the present invention is erected in the buried hole of the linear unit, and is not particularly limited, but is vertically as shown in the illustrated embodiment described later. An extending vertical rod is desirable, and it may be pipe-shaped or rod-shaped.

Further, the horizontal rod in the fence body portion in the present invention extends laterally from the upper end of the vertical rod, and is not particularly limited, but is horizontally as shown in the illustrated embodiment described later. An extending horizontal rod is desirable, and it may be pipe-shaped or rod-shaped.
Since the horizontal rod extends laterally from the upper end of the vertical rod as described above, it may be integrally formed so as to be formed at the upper end of the vertical rod. In this case, as shown in the illustrated embodiment, the horizontal rods are connected to the upper ends of the two vertical rods, and the shape is a torii-shaped structure (that is, the pillars correspond to the vertical rods and the Kasagi corresponds to the horizontal rods). ..
Further, the horizontal rods are not only arranged at the upper end of the vertical rod, but may be formed in parallel with the horizontal rod at the upper end. In this case, since the horizontal rod extends from the upper end and the middle of the vertical rod in advance, for example, the shape in which the horizontal rod extends from the upper end and the middle of the two vertical rods, and the shape of the torii (that is, the pillar) Is equivalent to a vertical rod, and Kasagi and Kan are equivalent to a horizontal rod).

Further, the connecting rod in the fence body portion in the present invention connects two horizontal rods arranged in a cross shape, and is not particularly limited, but is horizontally as shown in the illustrated embodiment described later. An extending connecting rod is desirable, and it may be pipe-shaped or rod-shaped. In addition, "arranged in a cross shape" refers to a state in which two horizontal rods are connected in a cross shape if there is no connecting rod, but are connected via this connecting rod, which will be described later. In the illustrated embodiment, the two horizontal rods are arranged orthogonally, but they do not necessarily have to be orthogonal (crossed at right angles).
The connecting rod may be formed only from a portion extending in an inclined shape, or a short rod portion extending in parallel with the front end of the tree-planting zone is planted at one end of the inclined portion and a tree is planted at the other end. A short rod portion extending parallel to the side edge of the band may be formed.

The fence body portion may be assembled entirely or partially in advance and attached to the fence body portion before being integrated with the support portion portion. For example, as described above, a horizontal rod integrally formed at the upper end of the vertical rod is formed, and this is connected to the connecting rod so that the fence body portion is attached to the linear unit. May be good. Regarding the connection between the rods, for example, one may be formed to have a slightly larger diameter and the other to have a slightly smaller diameter, and these may be connected. For example, welding may be performed using a handy type welding tool or the like. It may be connected.

The fenced block of the present invention having the above structure can be easily constructed by the following procedure.
First, as a first step, the linear unit is arranged so as to abut along the front end and the side end of the tree planting zone on the base for forming the tree planting zone, and the corner unit is placed on the tree planting zone. It is arranged at the left and right ends of the front end of.
Next, as a second step, the linear units and the linear unit and the corner unit are joined to each other.
Then, as a subsequent third step, a vertical rod is erected in the buried hole of the linear unit so that the horizontal rod or the connecting rod of the fence body portion is arranged above each unit of the formed support portion. Install and fix.

The procedure is conditioned on the condition that it is not necessary to remove the existing tree planting zone, and if necessary, the work of removing the existing tree planting zone is performed in advance.
In the first step, a linear unit and a corner unit, which are precast concrete blocks manufactured in a factory or the like, are brought to the site, and the front end of the tree planting zone is brought into the field according to the size and shape of the rectangular tree planting zone in a plan view. , And the linear units are arranged so as to abut along the side ends, and the corner units are arranged at the left and right ends of the front end of the tree planting zone.
The arrangement of each unit in the first step can be easily performed by a small heavy machine or the like, and the work can be easily performed.

In the second step, the arranged linear units or the linear units and the corner units are joined to each other, but a fixing tool may be driven into the end faces (arranged so as to face each other) so as to abut each other. However, it may be bonded by interposing an adhesive or the like, and the joining means is not particularly limited. In particular, when a connecting groove into which a connecting plate can be inserted is formed on the end face as described above, a connecting plate (for example, an iron plate) is interposed in the connecting groove and filled with an epoxy-based adhesive. , Can be firmly connected.

Subsequently, in the third step, the fence body portion is arranged above the formed support portion, but the fence body portion may be constructed in advance, or the fence may be constructed in order. You may try to form a body part.
Regarding the connection between the horizontal rods constituting the fence body part and the connection between the horizontal rods and the connecting rods, any connection may be made using a known connection structure of the rod-shaped bodies, and there is no limitation. It's not something to do. Incidentally, the same applies to the connection between the vertical rod and the horizontal rod.

As described above, the fenced block of the present invention has a simple structure for both the linear unit and the square unit forming the support portion, and the vertical rod, the horizontal rod, and the connecting rod forming the fence body portion are also simple. Since it has a simple structure, it is possible to easily manufacture a construction material. Further, in the construction of erection of the fence body portion on the support portion, since a vertical rod is only erected in the burial hole of the linear unit, it is extremely easy to construct a tree planting zone having a rectangular shape in a plan view. Can be done.
Since either the horizontal rod or the connecting rod of the fence body portion is arranged above all the concrete units, accidental intrusion into the tree planting zone is prevented (prevented) by this fence body portion. To. Therefore, it is possible to enjoy it as one of the living environment areas while protecting the trees planted in the tree-planting zone while leaning against the fence body portion or holding hands.
By increasing or decreasing the number of linear units arranged, the width of the tree-planting zone to be constructed can be easily expanded (= horizontally long) or reduced, so that various tree-planting zones can be newly constructed or repaired. It can be used for construction as appropriate.

The present invention will be described with reference to examples in the drawings. The present invention is not limited to the examples, and can be carried out in any way as long as the configuration described in the claims is not changed.

The fenced block 1 of the first embodiment of the present invention has a rectangular shape in a plan view as shown in FIG. 1 (a), and includes a hole (buried hole) 20 for burying shown in FIG. 1 (c). A plurality of linear units 2A and 2B are arranged at the front end and the side end of the tree planting zone 9, and the square unit 3 having a trapezoidal plan view shown in FIG. 1 (d) is the left and right ends of the front end of the tree planting zone 9. A support portion 4 surrounding the tree planting zone 9 is formed. The tree planting zone 9 is a planting area shown in FIG. 1 (b).
Further, as shown in FIG. 1B, the fence body portion 8 attached from above the support portion 4 has a vertical vertical rod 5 and a horizontal rod 6 extending laterally from the upper end of the vertical rod 5. And, it is formed by a connecting rod 7 connecting two horizontal rods 6 and 6 arranged at right angles.

In the support portion 4, in the embodiment, two linear units 2B are arranged in series at the front end of the tree planting zone 9, and the linear units 2A are arranged at the side ends of the tree planting zone 9, respectively. By arranging the corner units 3 at the left and right ends of the front end of the tree planting zone 9, a support portion 4 surrounding the tree planting zone 9 is formed.
In this way, since the support portion 4 is composed of two types of linear units 2A and 2B and a type of square unit 3, it is easy to manufacture at a factory or the like, and its management and transportation are also easy. Is.

Regarding the connection of the linear units 2B and 2B, as shown in FIG. 1 (g), a connecting groove 21 formed on the end face is formed, and a space formed between the connecting grooves 21 and 21 formed by abutting against each other. A connecting plate 10 such as an iron plate is inserted into the structure, and an epoxy-based adhesive (adhesive filler) 11 is filled around the connecting plate 10 to join the linear units 2B and 2B to each other.
Then, the linear unit 2B and the square unit 3 were joined, and the square unit 3 and the linear unit 2A were joined in exactly the same manner as the linear units 2B and 2B were joined.

The fence body portion 8 includes two types in which a vertical rod 5 and a horizontal rod 6 are assembled and integrated in a torii shape without a penetration shown in FIG. 1 (e), and a connecting rod 7 shown in FIG. 1 (f). It is formed in combination.
The connecting rod 7 of the illustrated embodiment is provided with connecting portions 72 and 73 extending horizontally and vertically at both ends of the inclined rod 71. Therefore, the horizontally arranged horizontal rods 6 may be connected to the horizontal connecting portion 72, and the vertically arranged horizontal rods 6 may be connected to the vertical connecting portion 73. Here, the horizontal and vertical shapes are the explanations on the drawings in FIGS. 1 (a) and 1 (b) which are plan views, and are different from the vertical rods 5 which are actually arranged vertically.

The fenced block 1 can be easily constructed in the following first to third steps.
As the first step, the linear units 2B and 2A are abutted against the base forming the tree planting zone 9 along the front end (left end in the drawing) and the side end (upper and lower ends in the drawing) of the tree planting zone 9. The corner units 3 are arranged at the left and right ends of the front end of the tree planting zone.
As a second step, the linear units 2B and 2B are joined to each other, and the linear units 2A and 2B and the corner unit 3 are joined to each other.
Then, as a subsequent third step, the horizontal rod 6 or the connecting rod 7 constituting the fence body portion 8 is arranged above the units 2A, 2B, 3 constituting the formed support portion 4. A vertical rod 5 is erected and fixed in the buried holes 20 of the linear units 2A and 2B.

In the block 1 with a fence of the present invention constructed in this way, both the linear units 2A and 2B forming the support portion 4 and the corner unit 3 have a simple configuration, and the vertical rod 5 forming the fence body portion 8 is formed. Since each of the horizontal rod 6 and the connecting rod 7 has a simple structure, a construction material can be easily produced. Further, the construction of erection of the fence body portion 8 on the support portion 4 is also extremely easy because the vertical rod 5 is erected in the buried holes 20 of the linear units 2A and 2B. Tree planting zone 9 can be constructed.
By increasing or decreasing the number of linear units 2A and 2B arranged, the width of the tree planting zone to be constructed can be easily expanded (= horizontally long) and reduced, so that it is appropriate for new construction and repair work of various tree planting zones 9. Can be used for.

For example, the number of linear units to be used may be appropriately selected according to the size of the planting area (tree planting zone) to be constructed, and by using a small heavy machine, road regulation or midnight work can be performed. Construction can be done easily without the need for.

In the second embodiment shown in FIG. 2, the support portion excluding the fence body portion is shown in FIG. 2 (a), but the basic configuration of the three types of concrete blocks used is the same as that in the first embodiment. ..
A plurality of linear units 2A'and 2B' having a hole (buried hole) 20 for burying shown in FIGS. 2B and 2C, and a corner unit having no burying hole shown in FIG. 2D. The numbers shown in italics in 3'have the dimensions shown in Table 1 below.

1 Block with fence 2A, 2B Straight (concrete) unit 20 Buried hole 21 Connecting groove 3 Corner (concrete) unit 4 Supporting part 5 Vertical rod 6 Horizontal rod 7 Connecting rod 8 Fence body part 9 Planting area (tree planting zone)
10 Connecting plate 11 Adhesive filler

Claims (3)

A plurality of linear concrete units having a rectangular shape in a plan view and having holes for burying are arranged at the front end and the side end of the tree planting zone, and a square concrete unit having a trapezoidal plan view is located at the front end of the tree planting zone. A support portion is formed at the left and right ends to surround the tree planting zone, and intersects with a vertical rod standing in a hole of the linear concrete unit and a horizontal rod extending laterally from the upper end of the vertical rod. A fence body portion is formed by a connecting rod connecting two horizontal rods arranged in a shape, and a horizontal rod or a connecting rod of the fence body portion is arranged above all concrete units forming the supporting portion. A block with a fence that is characterized by being present. A connecting groove into which a connecting plate can be inserted is formed on the connecting end face of the straight concrete unit and the corner concrete unit, and the straight concrete units, the straight concrete unit, and the corner concrete unit The fenced block according to claim 1, wherein the concrete blocks are joined by the connecting plate and the adhesive to be filled. A method of constructing a block with a fence according to claim 1 or 2.
The linear concrete unit is arranged so as to abut along the front end and the side end of the tree planting zone on the base forming the tree planting zone, and the corner concrete unit is placed on the left and right ends of the front end of the tree planting zone. The first step of arranging and
A second step of joining the linear units, and the linear concrete unit and the corner concrete unit,
The vertical rod is erected and fixed in a hole for burying the linear concrete unit so that a horizontal rod or a connecting rod of the fence body portion is arranged above each concrete unit of the formed support portion. The third step to do
A method of constructing a block with a fence, which is characterized by performing.

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