JP4212601B2 - Pavement block for snowmelt road surface construction and snowmelt road surface structure - Google Patents

Description

  The present invention warms the road surface by flowing a heated heat medium through a pipe embedded in the pavement layer of the road surface to prevent snow melting or freezing of the road surface, and further, the solar water is applied to the water flowing through the pipe. The present invention relates to a technology that makes it possible to supply hot water by transmitting heat of a heated road surface.

  When a metal pipe or resin pipe is buried in the concrete or asphalt layer of the road surface paved with concrete or asphalt, and the temperature on the ground becomes low, there is a risk of snow accumulation or freezing on the road surface. A technique for heating a pavement surface from the inside by flowing hot water or other heat medium through the resin pipe and preventing the snow melting and freezing of the road surface with the heat is known.

In this conventional snowmelt road surface structure, a flat foundation surface is formed, and heat medium pipes made of metal pipes and resin pipes are arranged in a zigzag shape thereon, and an underlying concrete layer is constructed so as to be embedded, Surface pavement is applied to the top. When there is a risk of snow accumulation or freezing on the road surface, water or other heat medium heated by a boiler or the like is poured into the heat medium pipe to warm the road surface from the inside, and the heat is used to prevent snow melting and freezing on the road surface.
JP 2003-239215 A

  The conventional snow melting road surface structure as described above must be troublesome and time-consuming to position and fix the pipe when placing the heat medium pipe on the base, and after the ground concrete layer in which the heat medium pipe is embedded has hardened. In other words, there is a problem that the construction is troublesome and takes time because the rolling of the road surface cannot be performed. In addition, when the heat medium pipe is damaged due to uneven settlement of the ground or uneven elevation, there is a problem that it is very difficult to partially repair it.

  The present invention has been made to solve the above-described problems, and it is easy to install the heat medium pipe, shorten the construction time, and easily repair the road surface when the heat medium pipe is damaged. The objective is to obtain a snowmelt road surface structure that is possible.

  The present invention divides a paving block paving a road surface by laying on a base into a base block 1 (1a, 1b) and an upper cover block 2 (2a, 2b) covered thereon, and the base block 1 Is provided with a tube receiving portion 6 for defining the position of the heat medium tube disposed below the road surface, and the heat medium tube 4 disposed in a state of being fitted in the tube receiving portion is covered on the base block 1. A pavement block for constructing a snow melting road surface having a structure in which the upper lid block 2 is pressed and fixed from above is provided.

  The heat medium pipe 4 is positioned on the foundation block 1 by a pipe receiving portion 6 provided on the peripheral edge of the upper surface of the foundation block 1. The tube receiving part 6 can be formed by pins or metal fittings planted or fixed on the peripheral edge of the foundation block 1. The upper lid block 2 is formed with a concave groove 10 that is in surface contact with the peripheral surface of the heat medium pipe 4 positioned by the pipe receiving portion 6.

  The upper lid block 2 is provided with a structure that promotes heat transfer between the heat medium tubes 4. Moreover, the structure which improves heat insulation is provided to the foundation block 1 side. Thereby, the heat of the heat medium flowing through the heat medium pipe 4 is efficiently transmitted to the road surface, and the heat of the road surface by sunlight is efficiently transmitted to the heat medium flowing through the heat medium pipe.

  As a structure for imparting heat insulation to the basic block 1, for example, fine bubbles or heat insulating material is mixed in the concrete of the block, or the heat insulating material layer 26 is provided between the heat medium pipe 4. Further, by providing the heat insulating material layer and the shallow recess 27 on the bottom surface of the foundation block 1, the heat insulation between the foundation and the foundation block 1 can be enhanced. As a structure for enhancing the heat transfer property of the upper cover block 2, for example, a structure in which the upper cover block 2 is molded with concrete mixed with a good heat conductor such as metal powder, a bitumen, tar or the like on the peripheral surface of the concave groove 10 for holding the heat medium pipe 4 The structure which provides the heat-transfer material layer 30 provided with the plasticity of this can be employ | adopted. Furthermore, by embedding and molding the heat transfer plate 3 of a good heat conductor provided with an arc bent portion 11 exposed on the groove surface of the concave groove 10 that holds the heat medium tube 4, the efficiency between the heat medium tube 4 and the road surface is improved. Good heat transfer can be achieved.

  The basic block 1 and the upper lid block 2 do not necessarily have the same planar shape, but by arranging one or a plurality of types of planar shapes together, the adjacent basic blocks and the adjacent upper lid blocks as well as the basics are arranged. The shape is defined such that the positional relationship between the block 1 and the upper lid block 2 covered thereon is defined. Moreover, let the top cover block 2 be a planar shape which can be laid out without gap except a joint by the combination of 1 type or multiple types of shape.

  Adjacent base blocks and upper lid blocks are positioned by abutment or fitting of their outer peripheries. The base block 1 (1a, 1b) and the upper lid block 2 (2a, 2b) covered thereon are positioned in the horizontal direction via the heat medium pipe 4 fixed in position between the blocks.

A pavement block for building a snow melting road surface according to the invention of claim 1 of the present application includes a foundation block 1 laid on a plane, an upper lid block 2 covered by the foundation block, the foundation block 1 and the upper lid block 2, The basic block 1 includes a flat upper surface provided with a heat insulating material layer 26, and pins and fittings planted or fixed at two peripheral portions of the upper surface. a formed tube receiving portion and a pipe receiving portion 6 which defines the piping positions of the heat medium pipe 4, upper lid block 2, the peripheral of the heat medium pipe is positioning a pipe receiving portion of the two portions This is a pavement block for building a snow melting road surface provided with a concave groove 10 provided with a plastic heat transfer material layer 30 on a groove surface in contact with the surface .

The pavement block for snow melting road surface construction according to the invention of claim 2 of the present application includes a foundation block 1 laid on a plane, an upper lid block 2 covered by the foundation block, the foundation block 1 and the upper lid block 2, The basic block 1 includes a flat upper surface provided with a heat insulating material layer 26, and pins and fittings planted or fixed at two peripheral portions of the upper surface. A formed tube receiving portion and a tube receiving portion 6 for defining the piping position of the heat transfer medium tube 4, and the upper lid block 2 is provided with an arc bent portion 11 and embedded in the upper lid block. A pavement for building a snow melting road surface comprising a plate 3 and a concave groove 10 in which the arc bent portion 11 contacting the circumferential surface of the heat medium pipe positioned at the two pipe receiving portions is exposed in the groove. It is a block .

A pavement block for snow melting road surface construction according to the invention of claim 3 of the present application is a pavement block for snow melting road surface construction having the structure of claim 1 , and an upper cover block 2 is provided on the groove surface of the groove 10. The arc bent portion 11 of the heat transfer plate 3 embedded therein is exposed.

  The snow melting road surface structure according to the invention of claim 4 of the present application includes a plurality of pavement blocks for building a snow melting road surface according to the invention of the present application laid on a base surface finished in a plane, and a foundation block of the plurality of pavement blocks. 1 and a heat medium pipe 4 disposed in a state of being sandwiched between the upper lid block 2, the heat medium pipe being fitted into a pipe receiving portion 6 provided in a large number of base blocks 1, And it is the snow-melting road surface structure where the surrounding surface is contacting the ditch | groove 10 provided in many upper cover blocks 2. FIG.

  In the snow melting road surface structure of the present invention, the foundation block 1 is laid out on a base surface finished in a plane, the heat medium pipes 4 are fitted and arranged in a plurality of pipe receiving portions 6 formed thereby, and an upper cover is formed thereon. It is constructed by covering the block 2 and filling the joint 7 with mortar or the like. By using a flexible resin tube as the heat medium tube 4, the heat medium tube 4 can be arranged and positioned on the laid foundation block 1 very quickly and easily.

  The heat medium pipe 4 disposed on the base block 1 is fixed in a state in which the outer peripheral upper surface thereof is in surface contact with the peripheral surface of the concave groove 10 of the upper lid block 2. By providing the plastic heat transfer material layer 30 on the peripheral surface of the concave groove 10, good adhesion between the upper lid block 2 and the heat medium pipe 4 can be obtained. In addition, the exposed portion 11 of the heat transfer member 3 embedded in the upper lid block 2 is pressed and fixed from above. Since the outer peripheral upper surface of the heat transfer medium tube 4 and the heat transfer member 3 are in direct contact, the heat of the medium that has flowed through the heat transfer medium tube 4 is transferred to the heat transfer member 3 and diffused planarly to the upper lid block 2. .

  According to the road surface structure using the pavement block for snow melting road surface construction of the present invention, the road surface is warmed by flowing a heating medium through the heat medium pipe 4 in a cold region to prevent snow accumulation and freezing. On the other hand, in the summer, the heat of the road surface heated by solar heat can be absorbed by water flowing through the heat medium pipe 4 or other heat medium and used as a heat source such as hot water supply, and the temperature rise of the road surface is suppressed. The heat island phenomenon can be suppressed.

  In the snow melting road surface structure according to the present invention, the heat medium pipe 4 is positioned by fitting the heat medium pipe 4 into the pipe receiving portion 6 of the foundation block 1 arranged on the base. Can be performed very quickly and easily, and the upper cover block 2 can be laid immediately after the heat medium pipe 4 is installed, and it is necessary to wait for the hardening of the concrete layer in which the heat medium pipe is embedded as in the prior art. Because there is no, the construction time can be greatly reduced.

  Further, when the heat medium pipe 4 is damaged, a part of the upper cover block 2 on the road surface is removed, and if necessary, a part of the foundation block 1 is removed, and if necessary, the foundation surface is repaired. The work of laying the basic block 1 and reconnecting the cut and removed heat medium pipe 4 and laying the new upper cover block 2 has the effect of partially repairing the road surface.

  Further, by providing the plastic heat transfer material layer 30 in the concave groove 10 provided in the upper cover block 2, the upper cover block 2 and the heat medium pipe 4 are brought into close contact with each other, and good heat transfer between them can be obtained. Further, by adopting a structure in which the upper surface of the heat medium pipe 4 is pressed and fixed by the heat transfer member 3 made of a good heat conductor embedded in the upper cover block 2, the road surface and the heat medium flowing through the heat medium pipe 4 are arranged. The heat transfer efficiency can be improved to improve the heat efficiency.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial perspective view showing a part of an example of a snow melting road surface structure according to the present invention. 1a and 1b are foundation blocks, 2a and 2b are upper cover blocks, both of which are concrete secondary molded in a concrete molding factory. It is a product. FIG. 2 shows a perspective view of one upper lid block 2a as viewed from below, and FIG. 3 shows a sectional view of a part of the basic block 1a and the upper lid block 2a and the heat transfer medium pipe 4 sandwiched therebetween.

  The basic blocks 1a and 1b and the upper cover blocks 2a and 2b in the illustrated embodiment are rectangular in shape in plan view, and a recess 25 is provided at the center of the short side of the basic blocks 1a and 1b as a handle for lifting the block. Is formed. The upper surface of the foundation blocks 1a and 1b is a flat plane provided with a heat insulating material layer 26, and a shallow recess 27 in the longitudinal direction of the block to be a heat insulating air layer is formed on the lower surface. The heat insulating material layer 26 is, for example, a ceramic coating layer containing fine bubbles, a foamed resin coating layer, a resin sheet, or the like. The heat insulating material layer 26 and the recess 27 are provided to reduce heat loss caused by heat transmitted from the heat medium pipe 4 to the base blocks 1a and 1b and the road base.

  The tube receiving portion 6 for positioning the heat medium tube 4 on the foundation blocks 1a and 1b is formed by a pair of pins inserted into a pair of pin holes 28 formed on the peripheral edges of the foundation blocks 1a and 1b.

  On the lower surface of the upper lid blocks 2a and 2b, the direction along the extending direction of the heat medium pipe 4 positioned on the basic blocks 1a and 1b by the tube receiving portion 6, that is, two parallel straight lines in the upper lid block 2a. Thus, the upper lid block 2b at the end of the road surface structure is formed with two arc-shaped concave grooves 10 which are U-shaped or bent 90 degrees in directions opposite to each other.

  As shown in FIG. 3, the concave groove 10 of the embodiment shown in the drawing is a heat transfer material layer in which a bitumen or pitch or the like having plasticity is applied to the inner surface of a trapezoidal groove having a depth deeper than the diameter of the heat transfer medium tube 4. 30 is provided. In the portions facing the tube receiving portions 6 at both ends of the concave groove 10, concave portions 31 having a shape in which the groove width is widened are provided.

  Laying on the foundation blocks 1a and 1b on the foundation and placing the heat medium pipe 4 thereon, the upper lid blocks 2a and 2b are then covered in a state of being joined with mortar or the like. When the upper lid blocks 2a and 2b are covered with the base blocks 1a and 1b, the upper cover blocks 2a and 2b are positioned by fitting the concave grooves 10 to the heat medium pipes 4 positioned by the pipe receiving portions 6 of the corresponding base blocks. The When the groove 10 has a trapezoidal cross section with a heat transfer material layer 30 having plasticity, the upper lid blocks 2a and 2b can be positioned accurately.

  A protrusion 8 corresponding to the width of the joint when the block is laid can be formed on the outer side surface of the portion where the tube receiving portion 6 of the basic block 1a, 1b is provided.

  As shown in FIG. 4, the upper lid block 2 can have a structure provided with a heat transfer plate 3. The heat transfer plate 3 is provided in a state where the arc bent portion 11 is exposed on the bottom surface of the groove 10 and heat transfer blades 12 extending on both sides thereof are embedded in the upper lid block 2a.

  The heat transfer plate 3 is made of an iron plate that also serves as a reinforcement for the upper cover block 2, and an arc-shaped bent portion 11 that is in surface contact with the upper surface of the heat transfer medium tube 4 is formed at the center. It is embedded in the block 2a so that the heat of the arc bent portion 11 is transferred to the entire upper lid block 2a. The heat transfer blade 12 is provided with a number of upwardly raised cuts 13 to increase the heat transfer area to the upper surface side of the block.

  The road surface structure shown in FIG. 1 is constructed by laying foundation blocks 1a and 1b on a base that has been pressed into a flat surface with a bottom face fixed with mortar, and a heat medium pipe 4 fitted on a pipe receiving portion 6 thereon. The base block 1b on the side of the road surface structure is bent 180 degrees and U-turned, arranged in a zigzag, and the upper lid blocks 2a and 2b are joined and covered with mortar, and joints are formed in the gaps between the blocks. Built by filling mortar. The end of the heat medium pipe 4 is connected to piping to a hot water boiler or the like using a connection block similar to the conventional structure.

The partial perspective view which destroys a part and shows the snowmelt road surface structure of an Example The perspective view which looked at the upper cover block in the Example of FIG. 1 from the downward direction FIG. 1 is a partial cross-sectional view of a heat medium pipe arrangement portion of the embodiment of FIG. Cross section of upper lid block with heat transfer plate 4 is a perspective view of a heat transfer plate embedded in the upper lid block of FIG.

Explanation of symbols

1a, 1b basic block
2a, 2b Upper lid block 3 Heat transfer plate 4 Heat medium pipe 6 Tube receiving part
10 groove
11 Arc bend
26 Insulation layer
27 recess
30 Heat transfer material layer

Claims (4)

A foundation block (1) laid on a plane, an upper lid block (2) covered by the foundation block, and a heat medium pipe (4) disposed between the foundation block and the upper lid block, The basic block (1) is a tube receiving portion formed by a flat upper surface provided with a heat insulating material layer (26) and pins or metal fittings planted or fixed at two peripheral portions of the upper surface. with the heat medium pipe and (4) the tube receiving portion (6) defining a pipe position of upper lid block (2) contacts the circumferential surface of the heat medium pipe is positioning a pipe receiving portion of the two portions A pavement block for building a snow melting road surface, comprising a concave groove (10) provided with a plastic heat transfer material layer (30) on the groove surface. A foundation block (1) laid on a plane, an upper lid block (2) covered by the foundation block, and a heat medium pipe (4) disposed between the foundation block and the upper lid block, The basic block (1) is a tube receiving portion formed by a flat upper surface provided with a heat insulating material layer (26) and pins or metal fittings planted or fixed at two peripheral portions of the upper surface. And a pipe receiving part (6) for defining the piping position of the heat transfer pipe (4), and the upper lid block (2) is provided with a circular arc bent portion (11) and a heat transfer plate embedded in the upper lid block ( 3) and a concave groove (10) that exposes the arc-bent portion in contact with the circumferential surface of the heat transfer medium tube positioned at the two tube receiving portions for the purpose of building a snow melting road surface Paving blocks. Arcuate bent portion (11) is exposed, paving block for snow melting road construction according to claim 1 Symbol placement of the heat transfer plate embedded in the upper lid block groove surface of the groove (3).   A plurality of pavement blocks for building a snow melting road surface according to claim 1, 2 or 3 laid on a base surface finished in a plane, and a foundation block (1) and a top cover block (2) of the plurality of pavement blocks. A heat medium pipe (4) disposed in a sandwiched state, and the heat medium pipe is disposed by being fitted into tube receiving portions (6) provided in a number of foundation blocks (1), and A snow-melting road surface structure whose peripheral surface is in contact with a concave groove (10) provided in a number of upper lid blocks (2).

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