JPH08199506A - Continuously connected snow-melting paving material - Google Patents

Abstract

PURPOSE: To facilitate the execution of works, and to improve the efficiency of snow melting by forming a plurality of single body blocks made of concrete while shaping specified clearances between the adjacent single body blocks and burying heating materials into a plurality of the single body blocks while being crossed on the clearances among the blocks in a series. CONSTITUTION: A plurality of single body blocks 2 formed in a proper shape are arranged and molded at specified clearances while heating materials 3 are buried into each single body block 2 in a series as being crossed on the clearances between the adjacent single body blocks 2, thus constituting a continuously connected snow-melting paving material 1. Consequently, each single block 2 is joined and collected by the heating material 3 in the continuously connected snow-melting paving material 1, thus allowing carrying and laying under the state, in which the blocks 2 are collected. Accordingly, the term of works of snow-melting paving can be shortened, and the efficiency of snow melting can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuously joined snow melting pavement material which can be laid on a sidewalk to melt snow in order to prevent snow from falling on the sidewalk and making it difficult to walk in a snowfall area. It is.

[0002]

2. Description of the Related Art Conventionally, in a snowfall area, in order to prevent walking on a sidewalk from becoming difficult, it is necessary to bury snow melting equipment made of electric heating material or the like in the sidewalk to melt the snow on the sidewalk. Was.

In this conventional snow melting pavement method, as shown in FIG. 7, first, a cast-in-place concrete 50 having a thickness of about 100 mm is cast as a lower subgrade, and an electric heating material 51 is placed on the cast-in-place concrete 50. In place, a cast-in-place concrete 52 having a thickness of about 30 mm is further cast so as to cover the electric heating material 51, and a block material 53 having a thickness of about 60 mm is formed one by one on the cast-in-place concrete 52 of the upper layer. They were laid and fixed at intervals, and joints such as sand were filled in the gaps between the block materials to form sidewalks.

[0004]

However, in the above-described conventional snow melting pavement method, the electric heating material 51 is embedded in the upper cast-in-place concrete 52, and the block material 53 is placed on the upper cast-in-place concrete 52. I have to arrange them one by one. Furthermore, when arranging the block members 53, it is necessary to lay each block member 53 horizontally at the same height while adjusting the joint interval between the adjacent block members 53, which is very troublesome. Had to work. In addition, since the installation of the block material 53 requires a skill, a skilled engineer called a block builder has to rely on the skilled worker. Therefore, there is a problem that the number of steps per unit area is large, the term of the process is long, and the cost is high.

Further, since the electric heating material 51 for melting the accumulated snow is buried in the cast-in-place concrete 52 in the upper layer, it is located considerably below the sidewalk surface. For this reason, in order to melt snow falling on the sidewalk, heat must be transmitted through the upper cast-in-place concrete 52 and the block material 53, and a large amount of electric power is required, and the snow melting efficiency is poor. There was also.

Accordingly, an object of the present invention is to provide a continuously joined snow melting pavement material which has been proposed in view of the above-mentioned problems of the prior art, is easy to construct, and has excellent snow melting efficiency.

[0007]

DISCLOSURE OF THE INVENTION The present invention has been proposed to achieve the above object. According to the invention of claim 1, concrete unit blocks are provided with a predetermined gap between adjacent unit blocks. It is characterized in that a plurality of vacant spaces are formed and an electric heating material is embedded in a plurality of single blocks in series while crossing the gap.

The invention described in claim 2 is characterized in that, in addition to the structure described in claim 1, a permeation coloring layer is formed on the surface of the single block.

According to a third aspect of the present invention, in addition to the structure of the first or second aspect, a connecting member is arranged so as to cross a gap between adjacent unit blocks, and the connecting member is used. It is characterized in that adjacent single blocks are connected to each other to provide flexibility between the single blocks.

According to a fourth aspect of the present invention, in addition to the structure according to the third aspect, the connecting member is made of a flexible material, and a pull-out preventing portion is provided in a portion embedded in the single block. And

According to a fifth aspect of the invention, in addition to the structure of the third or fourth aspect, the connecting member is hollow,
An electric heating material that traverses between the adjacent single blocks is inserted into the hollow portion.

[0012]

In the invention described in claim 1, the paving material constituting the upper layer of the sidewalk is assembled by joining the adjacent single blocks with the electric heating material having a plurality of single blocks embedded therein. . Therefore, it is possible to convey or lay in this assembled state. Therefore, it is possible to easily perform snow melting pavement on the sidewalk even without a skilled block worker, and it is possible to shorten the construction period of the snow melting pavement and reduce the construction cost.

Further, since the distance from the electric heating material to the sidewalk surface is short, the heat generated by the electric heating material is easily transferred to the surface. Therefore, energy saving can be promoted, and snow can be quickly melted.

According to the second aspect of the present invention, the decorativeness of the sidewalk can be enhanced by the permeation coloring layer.

Further, in the invention according to claim 3, since the adjacent single blocks are connected by the connecting member and the connecting member itself is made of a flexible material, when the paving material receives an external force. Easy to bend. Therefore,
It can be easily applied to the curved part of the way and can be surely fitted to the roadbed.

Further, in the invention according to the fourth aspect, since the connecting member has the slip-out preventing portion, the connecting between the adjacent connecting members can be made more reliable.

In the invention according to claim 5, since the electric heating material is inserted into the connecting member, the connecting member functions as a protective material for the electric heating material. Therefore, disconnection of the electric heating material can be prevented even when an external force is applied.

[0018]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a continuous joining snow melting pavement material according to the present invention, FIG. 2 is a sectional view of a sidewalk where the continuous joining pavement material is constructed, and FIG.
4 is a perspective view of a connecting member, FIG. 4 is a perspective view of a partition plate of a forming mold, FIG. 5 is a plan view of another embodiment of the connecting member, and FIG.
2 shows cross-sectional views of the connecting member shown in FIG.

The continuously-bonded snow melting pavement material 1 according to the present invention is formed by arranging a plurality of single blocks 2 ... Each having an appropriate shape with a predetermined gap therebetween, and each single block 2 has an adjacent single block. An electric heating material 3 is embedded in series while crossing the above gap between the blocks 2 and 2. In this embodiment, the electric heating material 3 is arranged in a meandering manner. However, the electric heating material 3 may be arranged in any form as long as it is a series, for example, may be arranged in a spiral shape.

The electric heating material 3 is composed of, for example, an electric heating coil 3 having a waterproof coating. In this embodiment, a series of electric heating coils 3 are arranged so as to traverse a gap between adjacent unit blocks 2 and 2. The snow-melting pavement material 1 is continuously connected. The electric heating material 3 may be any material as long as it generates heat when energized, for example, a nichrome wire,
It may be a season line.

The end portion of the electric heating coil 3 is led out to the back surface of the unit block 2 so as to be connected to the electric heating coil 3 arranged on another continuous joining snow melting pavement material 1 or a power source.
The end of the electric heating coil 3 may be left with the electric wire exposed, but a connector having a waterproof property is attached in order to facilitate connection with a power source or the like and to improve the waterproof property to prevent leakage. It is preferable.

The adjacent unit blocks 2 and 2 may be connected to each other only by the electrothermal coil 3 described above, but in order to further ensure the connection between the unit blocks 2 and 2, the adjacent unit blocks 2 and 2 are connected together. It is preferable that the connecting members 4 are spanned between the blocks 2 so that the single blocks 2 and 2 are connected and joined together via the connecting member 4.

As shown in FIG. 3, the connecting member 4 is a rod-shaped member having at least one pair of flange-shaped removal preventing portions 5 and 5 at or near both ends. Further, a hollow electric heating coil insertion hole 6 may be provided in the longitudinal direction substantially at the center of the connecting member 4. By inserting the electric heating coil 3 into the electric heating coil insertion hole 6, the electric heating coil 3 crossing the gap between the unit blocks 2 can be protected, and the electric heating coil 3 is bent and disconnected due to a load during transportation. Can be prevented.

The connecting member 4 is made of a flexible synthetic resin such as vinyl, rubber, or a metallic material such as aluminum so as to provide appropriate flexibility between the unit blocks 2 and 2. Composed of material. In addition, although the above-mentioned pull-out preventing portion 5 is one set in the illustrated embodiment, a plurality of sets may be provided or the shape may be changed appropriately. Further, when the sponge is coated on the portion embedded in the single block 2, the connecting member 4 becomes slightly swingable (swingable) with respect to the single block 2 after molding. Is a single block 2
It doesn't get out of the way. Therefore, the angle between the single block 2 and the connecting member 4 is easily changed, and the flexibility of the continuous connecting block 1 as a whole is increased.

Another embodiment of the connecting member will be described with reference to FIGS. 5 and 6. The connecting member 7 is an elongated member provided with a longitudinal opening 8 at an upper portion and an electric heating coil insertion groove 9 connected to the opening 8 inside. Further, on the outer periphery, a plurality of flange-shaped detachment preventing portions 10 are formed with a small interval therebetween. The connecting member 7 is made of a flexible synthetic resin such as vinyl, rubber, or a metallic material such as aluminum, similarly to the connecting member 4 described above.

Each of the above-mentioned individual blocks 2 is a so-called prompt mold which is immediately released from the mold by filling the mold with sand, cement, a little water, and a binder, which is mixed if necessary, and compressing it. Mold by the deconstruction method. A colored layer 10 having an appropriate color or pattern is formed on the surface (upper surface) of the single block 2. It is desirable to use a so-called permeation coloring method in which a coloring liquid is applied to the inside of a mold in advance, and the coloring pigment is penetrated into the filled concrete to color the surface portion.

Further, the mold is formed from an actual stone or provided with appropriate irregularities imitating a stone, and the surface of the demolded unit block 2 has natural stone in combination with the above-mentioned permeation coloring. A background may be formed.

In the above-mentioned continuous snow-melting pavement material 1, each single block 2 is arranged in a mosaic pattern with a predetermined gap, and the outer side of each continuous snow-melting pavement material 1 is connected to another continuous snow-melting pavement material. Because it is combined with the fused snow pavement material 1 in a mosaic pattern,
It is formed in a complementary shape with irregularities.

In order to mold the above-mentioned continuous-joining snow melting pavement material 1, a partition plate 11 is provided in the frame to form a recess for molding the unit block 2 in an appropriate shape. When the adjacent unit blocks 2 and 2 are joined by using the connecting member, as shown in FIG. 4, a groove-like connecting member for mounting the connecting member 4 (7) at a desired position of the partition plate 11 is provided. When the member mounting portion 12 is formed and the connecting member is not used, the partition plate 11 is formed with a small groove through which the electric heating coil 3 is inserted. In addition,
The connecting member mounting portion 12 is formed so as to cross the partition plate 11 because the connecting member 4 (7) crosses the gap between the single blocks 2 and joins the adjacent single blocks 2 and 2. The same applies to the groove for inserting the electric heating coil.

Further, the finished form of the formwork is, for example, 900 m so that the size and weight can be carried by an operator by hand.
It is desirable to set the inner dimension to be about mx 600 mm. Since the position of the partition plate 11 is a gap between the individual blocks 2, that is, the joint 13, the thickness of the partition plate 1 is, for example, about 5 mm.

Further, as described above, the composite pigment liquid for forming the permeation coloring layer 10 on the surface of the single block 2 is applied to the inside of the mold, that is, the bottom surface of the recess defined by the partition plate 11. .

When the unit blocks 2 and 2 are joined by the electric heating coil 3 without using the connecting member, the electric heating coil 3 is passed through the groove for inserting the electric heating coil, and when the connecting member is used, it is beforehand prepared. The connecting member 4 in which the electric heating coil 3 is inserted into the electric heating coil insertion hole 6 is attached to the mold,
The electrothermal coil 3 is inserted into the electrothermal coil insertion groove 9 of the connecting member 7 mounted on the mold, or the connecting member 4 is attached to the mold.
After mounting (7) and disposing the electric heating coil 3 separately from the connecting member 4 (7), the raw material prepared by mixing cement, sand or the like is filled in the concave portion of the form, Press the mold and apply vibration to compact it, and then demold.

As described above, by using the immediate demolition method, a substantially rectangular standardized continuous-joint snow melting pavement material 1 is completed in a short time, and the continuous-joint snow melting pavement material 1 is composed of a plurality of single blocks 2 ... The individual blocks 2 are joined together by a connecting member 4 or an electric heating coil 3.

Furthermore, the pigment penetrates into the surface layer portion of each single block 2 to form the coloring layer 10. Therefore, by adjusting the pigment, the hue of each single block 2 can be changed, or a blurring effect can be added within a single single block 2, and a single block 2 closer to natural stone can be created. . Further, in the case of permeation coloring as described above, the pigment permeates only the surface layer portion, which is also useful for saving the pigment.

The above-mentioned continuous-joining snow melting pavement material 1 has an outer portion formed in a complementary shape, but the shape of the outer portion of the continuous-joining snow melting pavement material 1 is not limited to this, and a single block 2 located at the outer portion. The outer edge may be formed as a substantially straight line and the whole shape may be formed as a substantially rectangular shape, or one side or two orthogonal sides of the outer side may be formed as a straight line. As described above, the continuously joined snow-melting pavement material 1 in which one side or two orthogonal sides is formed as a straight line is suitable for laying at the edge or corner of the sidewalk.

Next, a procedure for paving a sidewalk using the continuously-bonded snow melting pavement material 1 according to the present invention formed as described above will be described with reference to FIG. First, about 100mm thick
Is cast to form a subgrade 14, and the continuously joined snow melting pavement material 1 according to the present invention is laid on the upper surface of the subgrade 14, and is fixed with the cast-in-place concrete of the subgrade 14. Then, the end of the electric heating coil 3 is connected to a power source, or the electric heating coil 3 disposed on the adjacent joined snow melting pavement 1 is connected.
The electric heating coil 3 is connected to the end portion thereof so that power can be supplied to the electric heating coil 3. A plurality of power supply boxes serving as power supplies are installed at predetermined intervals on the sidewalk, and a power supply system wiring is drawn out of the power supply box into the ground and connected to the electric heating coil 3 of the continuously joined snow melting pavement material 1.

Since the continuous-joint snow melting pavement material 1 is formed in a complementary shape such that the adjacent continuous-joint snow melting pavement materials 1 and 1 mesh with each other in a mosaic shape, the laying work is simply performed by the continuous-joint snow melting pavement material 1 ... They can be placed side by side, and construction work is extremely easy. In addition, when the continuous-joined snow-melting pavement material 1 according to the present invention is formed to a length and width of about 900 mm × 600 mm and a thickness of about 60 mm, the weight is less than 70 kg, so that it can be sufficiently handled by two workers and transported. No machinery is required.

When the continuous-joining snow melting pavement material 1 is fixed on the roadbed 14 as described above, the adjacent continuous-joining snow melting pavement material 1,
1 and the gaps (joints 13) between the individual blocks 2 and 2 constituting the continuous joined snow melting pavement 1 are filled with sand to complete the snow melting pavement on the sidewalk. In addition, the sidewalk may be an inclined surface between the roadway and the boundary between the inclined surface and a flat portion is a curved surface. However, in the continuously-joined snow melting pavement material 1 according to the present invention, the single block 2, Since it is configured to give flexibility between the two and to bend, it is possible to bend along the curved state of the curved surface. Therefore, snow melting pavement can be easily applied not only to a flat surface but also to a curved surface.

The sidewalk provided with the continuous-joining snow melting pavement material 1 according to the present invention as described above has an appearance similar to that of natural stone, so that a natural stone-like block is provided without using natural stone. Since it is possible, it is possible to prevent the destruction of nature due to the mining of natural stone and provide an environment close to nature, and it is possible to meet the demands of the times.

In addition, according to the above-described continuous-joining snow melting pavement material 1, it is not necessary to lay small blocks one by one at the time of construction while adjusting the gaps (joints 13) one by one as in the conventional case. Therefore, since no labor is required and no special skill is required, it is possible to lay it even by ordinary workers, and it is possible to shorten the construction period and reduce the cost.

In the above-mentioned embodiment, the directly-joined pavement material 1 is laid on the roadbed 14 formed by pouring concrete. However, in sidewalks such as park sidewalks where a large load is not applied, stones, etc. It is also possible to lay sand or pebbles on the roadbed formed by laying to form an adjustment layer, and lay the continuous-joining pavement material 1 on this adjustment layer.

[0042]

Since the present invention has the above-mentioned constitution,
The following actions are achieved. According to the invention of claim 1, a plurality of concrete unit blocks are formed with a predetermined gap between adjacent unit blocks, and the electric heating material is embedded in the plurality of unit blocks while crossing the gap. , The adjacent unit blocks are joined by an electric heating material. Therefore, since it is not necessary to lay a plurality of single blocks one by one, the construction is easy and no skill is required. Therefore, it is possible to easily perform the snow melting pavement on the sidewalk even if it is not a skilled block work, and it is possible to shorten the construction period of the snow melting pavement.
The construction cost can be reduced.

Further, since the electric heating material is directly embedded in the single block, the distance from the electric heating material to the sidewalk surface is shortened, the heat transfer efficiency is improved, energy saving can be promoted, and the snow is quickly melted. be able to.

According to the second aspect of the present invention, since the permeation coloring layer is formed on the surface of the single block, not only the appearance of the paved surface is improved, but also the surface is worn, and the coloring is surely left. Will not hurt. Further, even if an expensive pigment is used, it is not necessary to color the whole, which is economical.

According to the third aspect of the invention, the adjacent single blocks are connected by the connecting member, and the connecting member itself is made of a flexible material. Therefore, when the pavement material receives an external force, the pavement material is likely to bend, and the pavement material can be easily installed even on a curved portion in the middle and can be surely fitted to the roadbed.

Further, in the invention as set forth in claim 4, since the connecting member has the slip-out preventing portion, the connecting between the adjacent connecting members can be made more reliable, and the single block can be carried out during transportation. Even if an external force such as pulling apart is applied, the single block does not separate.

Further, in the invention according to claim 5, the connecting member is hollow, and the electric heating material is inserted into the hollow portion. Therefore, it becomes easy to bury the electric heating material in the paving material. Further, even if an external force that separates the single block is applied or an external force that greatly bends acts during transportation, the electric heating material is protected by the connecting member, so that the electric heating material does not break. Moreover, since the connecting member protects the electric heating material even after the installation, the durability is improved.

[Brief description of drawings]

FIG. 1 is a plan view of a continuous joining snow melting pavement material according to the present invention.

FIG. 2 is a cross-sectional view of a sidewalk provided with a continuous-joining snow melting pavement material according to the present invention.

FIG. 3 is a perspective view of a connecting member that connects adjacent unit blocks to each other.

FIG. 4 is a perspective view showing a part of a partition plate of the formwork.

FIG. 5 is a plan view showing another embodiment of a connecting member for connecting adjacent unit blocks to each other.

FIG. 6 is a sectional view of the connecting member shown in FIG. 5;

FIG. 7 is a cross-sectional view of a sidewalk subjected to a conventional snow melting pavement construction method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Continuous joining snow melting pavement material 2 Single block 3 Electric heating material (electric heating coil) 4 Connecting member 5 Detachment prevention part 6 Electric heating coil insertion hole 7 Connecting member (other examples) 8 Opening 9 Electric heating coil insertion groove 10 Coloring layer 11 Partition Plate 12 Connecting member mounting part 13 Joint 14 Subgrade 50 Lower cast-in-place concrete 51 Electric heating material 52 Upper cast-in-place concrete 53 Block material

Claims (5)

[Claims] 1. A concrete single block is formed with a predetermined gap between adjacent single blocks, and an electric heating material is embedded in the plural single blocks in series while crossing the gap. A feature of the jointed snow melting pavement material. 2. The continuous-joining snow melting pavement material according to claim 1, wherein a permeation coloring layer is formed on the surface of the single block. 3. A connecting member is arranged so as to cross a gap between adjacent single blocks, and adjacent single blocks are connected to each other by the connecting member to provide flexibility between the single blocks. The continuous-joining snow melting pavement material according to claim 1 or 2. 4. The continuously-melting snow melting pavement material according to claim 3, wherein the connecting member is made of a flexible material, and a pull-out preventing portion is provided in a portion embedded in the single block. 5. The connecting member is hollow, and in the hollow portion,
The continuous melting snow melting pavement material according to claim 3 or 4, wherein an electric heating material that traverses between the adjacent single blocks is inserted.