JP5622232B2 - Heat exchange structure in pavement and water flow plate used therefor - Google Patents

Description

  The present invention relates to a heat exchange structure in a pavement such as a road or a parking lot, and also relates to a water flow plate used for the heat exchange structure. More specifically, in winter, it can be used to melt snow and prevent freezing on the surface of pavements such as road surfaces, while in summer, to mitigate the heat island phenomenon by cooling these pavement surfaces. The present invention relates to a heat exchange structure in a pavement that can be utilized. Moreover, it is related with the water flow board suitable for using for the structure of the heat exchange structure in this pavement part.

  For example, as disclosed in Japanese Patent Application Laid-Open No. 2005-282285, Japanese Patent Application Laid-Open No. 8-27716, and the like have been proposed as an example of a snow melting roadbed structure configured to melt snow on the road surface and prevent the road surface from freezing. . This type of snowmelt roadbed structure lays snowmelt panels with buried heat sinks and smooth upper and lower surfaces on the ground, and connects the ends of heatsinks of adjacent snowmelt panels with joint pipes. The road surface of the snow melting roadbed is formed by the surface of the snowmelt panel laid in this way, or the asphalt is paved on the surface of the snowmelt panel and the road surface of the snowmelt roadbed is formed by the asphalt.

  Such a snowmelt roadbed structure constructed by laying snowmelt panels side by side on the ground, when the surface of the snowmelt panels forms a road surface, the problem is likely to shift between the snowmelt panels due to the influence of automobiles traveling on the road surface, etc. was there. In addition, even if the asphalt is paved on the surface of the snow melting panel and the road surface is formed with the asphalt, the snow is melted due to the tire surface kicking or cracking on the road surface when the vehicle is running. There was a risk that the joint of the panel would shift. For this reason, the ends of the heat-dissipating pipes of the snow-melting panel cannot simply be in communication with each other, and the ends of the heat-dissipating pipes of adjacent snow-melting panels must be firmly connected by a joint pipe. It was. For this reason, the conventional snowmelt roadbed structure has a problem that construction requires a lot of time and construction efficiency is poor and the construction period is prolonged.

  Further, as a snow melting device in drainage pavement configured to melt snow on a drainage pavement or prevent freezing of the road surface, for example, a snow melting device disclosed in JP-A-2005-48359 has been proposed. However, drainage pavement has a problem that it cannot conduct snow melting on the road surface effectively because there are many voids and thermal conductivity is small.

JP 2005-282285 A JP-A-8-27716 JP-A-2005-48359

  The present invention was developed in view of the above-mentioned conventional problems, and in winter, it can effectively prevent snow melting and freezing on the surface of a pavement part such as a road or a parking lot, and in summer. The objective is to provide a heat exchange structure in the pavement that can effectively cool the surface of these pavements and contribute to the suppression of the heat island phenomenon, and can be reliably constructed with a shorter construction period. It is. It is another object of the present invention to provide a water flow plate that can constitute a heat exchange structure that can maintain such heat exchange performance over a long period of time and that can constitute a heat exchange structure that is excellent in workability.

In order to solve the above problems, the present invention employs the following means.
That is, the first aspect of the heat exchange structure in the pavement according to the present invention is a waterproof structure including an adhesive on the upper surface of a foundation layer made of a concrete layer, an asphalt layer, or the like, which is provided in a series with a smooth upper surface. With the layer interposed, the water flow plate is laid vertically and horizontally to provide the water flow plate laying layer, and the upper pavement layer is provided in a series on the upper surface of the water flow plate laying layer via the adhesive layer. A pavement is formed. The water flow plate is linearly extended from one end of the opposite end of the water flow plate body to the other inside the water flow plate body made of a flat plate made of impermeable precast concrete, A water pipe portion closed in the circumferential direction is provided, and both end openings of the water pipe portion are open on the surface of the water plate main body, and the end opening is open on the end surface of the water flow plate main body. The said water flow board by which the water flow path which consists of a water flow pipe part which connected was formed by joining the end surfaces of adjacent water flow boards in the abutting state via a water-stopping joint material so that it may mutually communicate. A laying layer is provided, and the working water supplied at one end of the water passage is discharged at the other end of the water passage. In addition, the upper and lower surfaces of the water flow plate main body are formed to be rough surfaces, and the waterproof layer is in a state of biting into the lower rough surface and the adhesive layer is in a state of biting into the upper rough surface. It is characterized by.

  In the second aspect of the heat exchange structure in the pavement according to the present invention, a waterproof layer containing an adhesive is provided on the upper surface of the foundation layer made of a concrete layer, an asphalt layer, or the like, which is provided in a series with a smooth upper surface. A water flow plate is laid vertically and horizontally to provide a water flow plate laying layer, and a drainage property comprising a porous asphalt layer, a porous concrete layer, etc. via an adhesive layer on the upper surface of the water flow plate laying layer. The pavement portion of the bridge is formed by providing the upper pavement layer as a pavement layer in a continuous state. The water flow plate is made of impervious precast concrete made of high-strength fiber reinforced concrete, inside the water flow plate main body made of a flat plate having a square shape or a rectangular shape in plan view, A water passage pipe portion that is closed in the circumferential direction is provided so as to extend linearly from one of the opposite end portions viewed in the transverse direction of the road surface to the other. Opening on the surface of the plate body, the end surfaces of the adjacent water flow plates through the water-stopping joint material so that the end openings that are open at the end surface of the water flow plate body communicate with each other. By joining in the butted state, the water flow plate laying layer is provided in which a water flow path composed of a continuous water flow pipe portion is formed, and the working water as river water supplied at one end of the water flow path is the water It is designed to be discharged at the other end of the water channel, and Rainwater permeates the drainage pavement layer is adapted to be discharged flows down the top surface of the water passage plate laid layer. In addition, the upper and lower surfaces of the water flow plate main body are formed to be rough surfaces, and the waterproof layer is in a state of biting into the lower rough surface and the adhesive layer is in a state of biting into the upper rough surface. It is characterized by.

  In the heat exchanging structure in the pavement according to the first and second aspects, the opening at both ends of the water conduit is configured, for example, as being opened at the opposing end surfaces of the water passage main body.

  In the heat exchange structure in the pavement according to the first aspect, the upper pavement layer may be configured as a drainage pavement layer composed of a porous asphalt layer, a porous concrete layer, or the like.

  In the heat exchange structure in the pavement according to the first aspect, the water flow plate main body may be configured as a flat body made of precast concrete using high-strength fiber reinforced concrete.

  The water flow plate according to the present invention has a water flow plate laid vertically and horizontally by interposing a waterproof layer containing an adhesive on the upper surface of the ground concrete layer provided in a series with a smooth upper surface. When forming the pavement by providing a laying layer and forming an upper pavement layer in a series of states on the upper surface of the water flow plate laying layer via an adhesive layer, a water flow plate constituting the water flow plate laying layer Yes, closed in the circumferential direction so as to extend linearly from one of the opposite ends of the water flow plate body to the other inside the water flow plate body made of a flat plate made of impermeable precast concrete. A water pipe is provided, and both ends of the water pipe are open at the surface of the water plate main body (for example, the opposite end surface of the water plate main body). When the surface of is formed on a rough surface for the state that the adhesive of the waterproof layer is bitten The surface above the vent water plate body is characterized in that it is formed on the rough surface to the state bites the adhesive layer.

The present invention has the following excellent effects.
(1) When using the heat exchanging structure in the pavement according to the present invention, it is possible to dissipate the heat stored in the working water to the pavement by heat conduction, so in winter, drainage pavements such as roads and parking lots. Snow melting on the surface of the layer and freezing of water on the surface can be prevented. On the other hand, in the summer, cooling the surface of the drainage pavement can contribute to alleviating the heat island phenomenon.

(2) The heat exchanging structure in the pavement according to the present invention forms a water flow plate laying layer by laying the water flow plate vertically and horizontally, so that there is no need for bar arrangements such as on-site construction, and in a short period of time. There is economy that construction is possible.

(3) In addition, since a water flow passage important for heat exchange is provided inside the water flow plate laying layer, if the joints between the water flow pipe portions shift due to the influence of the road surface running of the automobile, etc. In the heat exchange structure in the pavement according to the present invention, the upper and lower surfaces of the water plate main body are formed into rough surfaces, and the adhesive layer and the waterproof layer have digged into the upper and lower rough surfaces. It is in a state. For this reason, the ground concrete layer and the water flow plate laying layer provided in a series and the upper pavement layer provided in a series are in an integrated state and are structurally stable. Therefore, when joining the end portions of the water pipe portions, simply connecting the end surfaces of the adjacent water flow plates with the water-stopping joint material between them, and simply connecting them together, the water pipe portions communicate with each other. Is stably held. Further, the structure for supplying the working water to the water passage is stably held. Further, even when the water passage is constituted only by the water pipe portion, the structure for supplying the working water to the water passage is stably held.
For this reason, according to the present invention, a heat exchanging structure excellent in quality capable of maintaining heat exchanging performance over a long period of time can be configured, and a heat exchanging structure excellent in workability can be provided.

(4) In particular, when the upper pavement layer is a drainable pavement layer, it is possible to achieve snow melting on the road surface while ensuring drainage.

(5) Since the heat exchange structure according to the present invention can melt snow without water spraying, it can be applied to the pavement part of a bridge to prevent water on the road surface from freezing and contribute to traffic safety. it can. When the bridge is a bridge straddling a river, it is economical because abundant river water can be used in large quantities as working water, and drainage facilities can be simplified.

(6) When using the water flow plate according to the present invention, it is possible to provide a heat exchange structure excellent in quality capable of maintaining heat exchange performance over a long period of time, and to provide a heat exchange structure excellent in workability. Become.

It is a partially cutaway perspective view showing a case where the heat exchange structure according to the present invention is applied to a bridge roadway. FIG. It is the enlarged view which shows the upper part seen in the road gradient direction of the cross-sectional view. It is an enlarged view which shows the intermediate part of the cross-sectional view. It is an enlarged view which shows the lower part of the road gradient direction of the cross-sectional view. It is the fragmentary sectional view which looked at the roadway of the bridge in the longitudinal direction. It is the partially cutaway top view and partial sectional view which show a water flow board. It is the perspective view which looked at the water flow board from the upper side, and its partial enlarged view. It is the perspective view which looked at the water flow board from the lower side, and its partial enlarged view. It is a fragmentary perspective view which shows the water flow board to which end surfaces mutually adhere, and sectional drawing which shows the state which bonded the end surfaces of the water flow board so that a water flow pipe part may be connected. A partial perspective view showing a water flow plate to be joined to each other via an elastic packing material, and a cross section showing a state in which the end surfaces of the water flow plates are joined to each other through the elastic packing material so as to communicate with each other FIG. It is sectional drawing which shows the heat exchange structure applied to the sidewalk of a bridge. FIG. FIG. It is a partially notched top view which shows the other Example of a water flow board. It is a fragmentary top view which shows the paving part comprised by laying the water flow board. It is a front view which shows the other Example of a water flow board. It is a front view which shows the other Example of a water flow board. It is a front view which shows the other Example of a water flow board. It is sectional drawing which shows the other Example of a water flow board. It is sectional drawing which shows the other Example of a water flow board. It is sectional drawing which shows the other Example of a water flow board.

  1-2, a heat exchange structure (hereinafter referred to as a heat exchange structure) 1 in a pavement according to the present invention is, for example, a pavement of a roadway 3 (a road surface 6 is, for example, one lane on one side of a road) on a bridge 2 across a river. 2%) 5. Prior to the description of the heat exchange structure 1 according to the present embodiment, the development process of the invention will be described in relation to the features of the invention.

  The present inventors can pay attention to a pavement portion of a bridge in which a drainage pavement layer is provided on the upper surface of an impermeable base, and can effectively melt snow on the upper surface (hereinafter also referred to as a bridge surface). We studied snow melting means. As a means of melting snow on such a bridge surface, a water spray snow melting method that sprinkles water on the bridge surface has been used in the past. However, there was a danger that the bridge surface would freeze and easily cause a traffic accident. We studied snow melting means. As one of them, a means for melting snow by flowing river water or the like at the boundary between the water-impermeable base and the drainage pavement layer was conceived. However, snow melting efficiency was poor when using such snow melting means. This is presumably because the drainage pavement layer has many voids and low thermal conductivity.

  Therefore, the present inventors have conceived a snow melting means in which a heat generating layer is provided below the drainage pavement layer. In this snow melting means, a water flow plate is laid vertically and horizontally, a drainage pavement layer is provided on the upper surface of the water flow plate laying layer, and river water is caused to flow through a water channel provided inside the water flow plate laying layer. The heat held by the river water was dissipated to the water laying layer, and the surface of the drainage pavement layer was heated with the heat dissipated to melt the snow.

  By the way, the snow melting means for the drainage pavement layer is very effective when applied to the pavement part of a bridge with high risk of inducing a traffic accident. However, the thickness of the pavement part in the bridge is set to 60 to 80 mm. There is a construction restriction that it must be. As a result of further research, it was found that in order to construct a pavement having strength under such constraints, the water flow plate must be thin and strong. Furthermore, since a thin water flow board is lightweight, it turned out that the water flow board which comprises a water flow board laying layer must be devised so that it may not shift | deviate by the influence of the bridge surface running of a motor vehicle.

  The invention according to the present embodiment has been completed by further developing such knowledge. Hereinafter, this will be described more specifically.

  As shown in FIGS. 1 and 2 and FIGS. 3 to 6, the heat exchange structure 1 includes a waterproof layer 10 containing an adhesive on the upper surface 7 of the base layer 9 provided with a smooth upper surface 7 in a series. In addition, the water flow plate laying layer 12 is provided by laying the water flow plate 11 vertically and horizontally, and the upper pavement layer 17 is in a series state with the adhesive layer 15 interposed on the upper surface 13 of the water flow plate laying layer 12. Thus, the pavement 5 is configured.

  By the way, in the bridge, the thickness of the pavement 5 provided on the foundation layer 9 is defined as 60 to 80 mm, and a slight construction error is allowed. In the present embodiment, a waterproof layer 10 having a thickness of 5 to 15 mm, for example, about 5 mm is provided on the base layer 9, and a water flow plate laying layer 12 having a thickness of 30 to 50 mm, for example, about 35 mm is provided on the waterproof layer 10. The upper pavement layer 17 having a thickness of 30 mm or more, for example, about 40 mm is provided thereon, and the thickness of the pavement portion 5 is set to about 80 mm. The upper pavement layer 17 is a drainable pavement layer 17a in this embodiment.

  Here, the water flow plate 11 constituting the water flow plate laying layer 12 is mixed with high-strength fiber reinforced concrete (metal or organic / inorganic single fibers) as shown in FIGS. The concrete is reinforced by this.

  More specifically, the water flow plate 11 is a water flow plate main body made of precast concrete and made of a water-impermeable flat plate having a square shape or a rectangular shape (for example, a rectangular shape) in a plan view. The water flow pipe portion 20 closed in the circumferential direction so as to penetrate the central portion in the thickness direction of the 19 is linearly shaped from one end 22a of the opposite end portions 22 and 22 of the water flow plate main body 19 toward the other 22b. It is provided to extend. In the present embodiment, the opposite end faces 21 and 21 are provided so as to extend linearly from one side 21 a to the other side 21 b, and both end openings 35, 35 of the water flow pipe part 20 are provided on the water flow board body 19. Opened at the surface 23. In the present embodiment, the water passage plate main body 19 is opened at the opposed end surfaces 21a and 21b.

  The water flow plate 11 is laid so that the extending direction of the short side 25 is aligned with the transverse direction of the upper surface (road surface) 6 of the pavement portion 5, and the length L1 of the short side 25 is, for example, 1750 mm. The length L2 of the long side 27 is set to 2000 mm, for example, and the thickness is set to 35 mm, for example. In the present embodiment, the water flow pipe portion 20 is formed directly on the water flow board main body 19 without using a pipe member, and its inner diameter is set to 15 mm, for example. Further, a plurality of the water pipe portions 20 are arranged at a required interval in the extending direction of the long side 27 of the water passing plate 11, and the arrangement interval seen in the extending direction of the long side 27 is between the centers. For example, it is set to 100 mm. The upper and lower surfaces 29, 30 of the water flow plate body 19 are formed as rough surfaces 31, 32. For example, as shown in FIG. 7B, the rough surfaces 31 and 32 have a striped pattern in which a large number of grooves 33 having a depth of about 2 to 3 mm, a length of about 28 to 30 mm, and a width of about 5 to 6 mm are formed. It is formed to be scattered.

  As shown in FIGS. 1 and 2, the water flow plate 11 has a smooth top surface 7 and a base layer (concrete layer, asphalt layer, etc., concrete floor slab in this embodiment) 9 provided in a series. The water permeable plate laying layer 12 is formed on the upper surface 7 by laying it vertically and horizontally through the waterproof layer 10. At this time, the water permeable plate 11 is extended in the direction of the short side 25. Is laid in accordance with the transverse direction of the road surface 6. In order to form the pavement part 5, the two water flow plates 11 are joined with the extension direction of the water flow pipe part 20 aligned with the transverse direction of the road surface 6. As shown in FIGS. 4 (A) and 4 (B), this joining is performed so that the end portions 35 and 35 of the corresponding water pipe portions 20 and 20 extending in the transverse direction of the road surface 6 can communicate with each other. The end surfaces 21 and 21 of the eleventh and eleventh are aligned with each other.

  In this embodiment, for example, as shown in FIGS. 10A and 10B, a water-stopping joint material 36 made of, for example, an epoxy resin adhesive is provided between the end surfaces 21 and 21 of the water flow plates 11 and 11. The end surfaces 21 and 22 are bonded to each other by application, spraying, injection, or the like so as not to block the end portions 35 and 35 with a thickness of ˜2 mm. Alternatively, as shown in FIGS. 11 (A) and 11 (B), through holes (diameter 15 mm) 37 are provided in a juxtaposed manner so as to be aligned with the end openings 35, 35 of the water pipe portions 20, 20 arranged side by side. A waterproof joint material 39 made of an elastic packing material made of synthetic resin (elastic packing material such as butyl rubber or sponge rubber) is interposed between the end surfaces 21 and 21, and the end surfaces 21 and 21 are abutted against each other. It can also be performed by joining in a state. As a result, the water pipe portions 20, 20 extending in the transverse direction are connected in a straight line via the through holes 37.

  And as shown in FIG. 1, FIG. 6, the adjacent side surfaces 40 and 40 of the water flow board 11 arranged in parallel by the length direction of the road surface 6 are the water-stopping joint material 41 which consists of an epoxy resin type adhesive agent, for example. It is bonded by applying, spraying, pouring, etc. Alternatively, a waterproof joint material 41 made of an elastic packing material made of synthetic resin (a packing material such as rubber having elasticity such as butyl rubber or sponge rubber) is interposed between the side surfaces 40, 40, and the side surfaces 40, 40. In some cases, they are in contact with each other.

  As shown in FIG. 4 (B), the waterproof layer 10 is in a state where the waterproof layer 10 has bitten into the rough surface 32 under the water plate 11 laid in this manner. And integrated with the base layer 9 provided in a series. Thereby, the water flow plate laying layer 12 can be made difficult to move with respect to the base layer 9. In addition, the upper pavement layer 17 provided in a series with, for example, an epoxy resin adhesive layer 15 interposed on the upper surface 13 of the water flow plate laying layer 12 is a porous asphalt layer or a porous concrete layer in this embodiment. It is comprised as the drainage pavement layer 17a which consists of etc., and is integrated with the said water flow board laying layer 12 via the contact bonding layer 15 of the state which digged into the rough surface 31 on the said water flow board 11. FIG. Thereby, the upper pavement layer 17 can be made difficult to move with respect to the water flow plate laying layer 12.

  One end (upper end in FIGS. 2 to 3) 43 of the water passage 42 formed by communicating the water pipe portion 20 in the transverse direction is provided in the road surface extending direction at the upper end portion of the road surface 6 in the transverse direction. The water supply conduit 45 communicates with the upper communication hole 47. The other end 49 (the lower end in FIGS. 2 and 5) of the water passage 42 communicates with a drainage facility 50 as a drainage groove 50 a provided in the road surface extending direction at the lower end portion in the transverse direction of the road surface 6. ing. River water taken by a pump (not shown) is supplied to the water supply pipe 45 through a water supply pipe (not shown), so that river water as working water is supplied to the upper communication holes 47. For example, it is supplied to each of the water passages 42 in a state close to a natural flow, and flows down the water passage 42 and is discharged to the drain groove 50a.

  However, when the heat exchange structure 1 according to the present invention is used, as shown by the arrows in FIGS. 3 to 5, the rain water on the road surface 6 of the pavement 5 permeates the drainage pavement layer 17 a, It flows down the upper surface 13 of the water flow laying layer 12 and is discharged into the drainage groove 50a.

  As described above, when river water is supplied to each water passage 42, the retained heat of the river water is transferred to the water passage plate 11 by heat conduction on the inner peripheral surface 51 (FIGS. 3 to 5) of the water passage 42. The heat is transferred to the upper pavement layer 17, and the upper surface (road surface) 6 of the upper pavement layer 17 is heated. In winter, the road surface 6 is heated in this manner, so that the snow on the road surface 6 can be melted and the water on the road surface 6 can be prevented from freezing. In summer, the water flowing down the water passage 42 can absorb the heat held by the pavement 5, thereby cooling the road surface 6 and contributing to the mitigation of the heat island phenomenon. In the present embodiment, since the water passages 42 are linear in the transverse direction of the road surface 6, a large amount of river water can flow smoothly through each water passage 42. Therefore, although the river water having a relatively low temperature is used as the working water, the retained heat can be efficiently dissipated to the water plate 11, and snow melting and freezing prevention are efficiently performed. be able to.

  In the heat exchange structure 1 capable of performing such heat exchange, as described above, the upper and lower surfaces 29, 30 of the water flow plate main body 19 are formed on the rough surfaces 31, 32, as shown in FIG. As shown, the water-permeable plate laying layer 12 is integrated with the base layer 9 in the series state via the waterproof layer 10 in a state of biting into the lower rough surface 32, and the upper rough surface 31. Since the upper pavement layer 8 in a series of states is integrated with the water flow plate laying layer 12 through the adhesive layer 15 in the state of being digged into, the constructed pavement 5 is in an integrated state and structurally Is stable.

  For this reason, the road surface 6 is less likely to be rolled or cracked due to the action of the tire kicking the road surface when the vehicle is traveling, and the water passage plate 11 is not likely to be displaced. Therefore, although the water pipe portions 20 and 20 are joined in a simple butted state, the communication state between the water pipe portions 20 and 20 is stably maintained. Further, in this embodiment, as shown in FIG. 3, a configuration is adopted in which the upper end 43 of the water passage 42 is communicated with the water supply pipe 45 through the upper communication hole 47. The communication state with the communication hole 47 is also stably maintained. By such a thing, the said heat exchanges, such as snow melting of a road surface, prevention of freezing of a road surface, and cooling of a road surface, can be exhibited favorably over a long period of time. And since this invention is a thing of a non-watering system and is not the mechanism which sprinkles on a road surface and melts snow, there is no possibility of freezing the road surface of a especially dangerous bridge by watering.

  Next, characteristic features of the invention according to the present embodiment will be described as follows.

  That is, in this embodiment, since the upper pavement layer 17 is a drainable pavement layer 17a made of a porous asphalt layer, a porous concrete layer, or the like, it penetrates the upper pavement layer 17 and the impervious water passage. The water that has reached the upper surface 13 of the board laying layer 12 flows down the upper surface 13 and flows into the drainage groove 50a. However, it is possible to prevent snow melting on the road surface and freezing of the road surface while ensuring good road surface drainage. Is one of the features of the invention according to the present embodiment. In general, a drainable pavement structure is configured by providing a drainable pavement layer made of a porous asphalt layer or a porous concrete layer on the upper surface of an impervious base made of an asphalt layer or a concrete layer. Due to its low thermal conductivity, snow melting efficiency in this type of drainage pavement structure was poor. Therefore, in the invention according to the present embodiment, a configuration is adopted in which a drainable pavement layer 17a such as a porous asphalt layer or a porous concrete layer is provided on the water flow plate laying layer 12 that can also function as a heat generating layer. For this reason, snow melting on the upper surface (road surface) 6 of the drainable pavement layer 17a and freezing prevention of the road surface 6 can be performed satisfactorily.

  In this embodiment, since the water flow plate 11 is made of high-strength fiber reinforced concrete, the water flow plate 11 has a thin wall (for example, the above-mentioned approximately 1%) even in the pavement portion 5 of the bridge with restrictions on the thickness. The required heat exchange structure can be configured. Thus, even in a bridge where the thickness of the pavement 5 is limited, it is possible to achieve snow melting and freezing prevention on the road surface while ensuring good drainage of the road surface 6. One.

  Further, the water passage plate 11 having such a thin wall is inevitably light, but the upper and lower surfaces 29 and 30 of the water passage plate body 19 are used as means for preventing the light passage plate 11 from shifting. The rough surface 31, 32 is provided, and the adhesive layer 15 and the waterproof layer 10 are digged into the upper and lower rough surfaces 31, 32, so that the water-permeable plate laying layer 12, the base layer 9, and the upper pavement are provided. The entire layer 17 is integrated. Thus, even if the water flow plate 11 is lightweight, the positional deviation can be prevented. This is also one of the feature points of the invention according to the present embodiment.

  12-14 shows the case where the heat exchange structure 1 which concerns on this invention is applied to the pavement part 5 of the sidewalk 52 in the bridge over a river, The water flow pipe part 20 which the water flow board 11 has one sheet Only through this, the water passage 42 is formed.

  In the heat exchanging structure 1, a waterproof layer 10 containing an adhesive is interposed on the upper surface 7 of the base layer 9 configured in the same manner as described above, and the side surface 40, 40 of the water passage plate 11 is bonded to the adhesive or elastic. The water flow plate laying layer 12 is provided by laying in contact with the packing material, and the upper pavement layer 17 is in a series of states on the upper surface 13 of the water flow plate laying layer 12 with an adhesive layer 15 interposed therebetween. The pavement part 5 is comprised by being provided in.

  Then, the waterproof layer 10 is bitten into the rough surface 32 under the water passage plate 11 laid in this manner, and the water passage plate 11 is provided in a series through the waterproof layer 10. Further, it is integrated with the base layer 9. Further, in the present embodiment, the upper pavement layer 17 is configured as a drainable pavement layer 17a made of a porous asphalt layer, a porous concrete layer, or the like, as shown in FIG. It is integrated with the water flow plate laying layer 12 through the adhesive layer 15 in a state of biting into the rough surface 31.

  Further, one end (upper end in FIG. 13) 43 of the water flow path 42 formed only of the water flow pipe portion 20 provided on the water flow plate 11 is the road surface extension at the upper end portion in the transverse direction of the sidewalk surface (road surface) 6. It communicates with a water supply pipe 45 provided in the direction through an upper communication hole 47. Further, the other end (lower end) 49 of the water passage 42 communicates with a drainage facility 50 as a drain pipe 50 b provided in the road surface extending direction at the lower end portion in the transverse direction of the road surface 6 through a lower communication hole 55. Has been. River water taken by a pump (not shown) is supplied to the water supply pipe 45 through a water supply pipe (not shown), so that river water as working water is supplied to the upper communication holes 47. Are supplied to the respective water passages 42, flow down the water passages 42, and discharged to the drain pipe 50 b through the lower communication holes 55.

  However, when the heat exchange structure 1 according to the present invention is used, as shown by the arrows in FIGS. 13 to 14, the rain water on the road surface 6 of the pavement 5 permeates the drainage pavement layer 17 a, The water flows down the upper surface 13 of the water flow plate laying layer 12 and is discharged to the drain pipe 50b.

  As described above, when river water is supplied to each water channel 42, the retained heat of the river water is radiated to the water plate 11 by heat conduction on the inner peripheral surface 51 of the water channel 42, and the upper pavement Heat transfer to the layer 17 heats the sidewalk surface (road surface) 6 as the upper surface of the upper pavement layer 17. In winter, the road surface 6 is heated in this manner, so that the snow on the road surface 6 can be melted and the water on the road surface 6 can be prevented from freezing. In the summer, the water flowing down the water passage 42 can absorb the heat held by the pavement 5, thereby cooling the road surface (sidewalk surface) 6 and contributing to the mitigation of the heat island phenomenon. In this embodiment, since the water passages 42 are linear in the transverse direction of the road surface 6, a large amount of river water can flow smoothly through each water passage 42. Therefore, although the river water having a relatively low temperature is used as the working water, the retained heat can be efficiently released to the water plate 11 to efficiently prevent snow melting and freezing. be able to.

  In the heat exchange structure 1 capable of performing such heat exchange, as described above, the upper and lower surfaces of the water flow plate main body 19 are formed on the rough surfaces 31 and 32, and are in a state of biting into the lower rough surface 32. Through the waterproof layer 10, the water flow plate laying layer 12 is integrated with the base layer 9 in the series of states, and through the adhesive layer 15 in the state of biting into the upper rough surface 31, Since the upper pavement layer 17 in a series is integrated with the water flow plate laying layer 12, the constructed pavement 5 is in an integrated state and is structurally stable.

  For this reason, even when a vehicle such as a management vehicle or a snowplow runs on the sidewalk, the road surface 6 is unlikely to be drooped or cracked, and the water flow plate 11 is not easily displaced. Therefore, the communication state between the water passage 42 and the upper communication hole 47 is stably maintained. By such a thing, the said heat exchanges, such as snow melting of a road surface, prevention of freezing of a road surface, and cooling of a road surface, can be exhibited favorably over a long period of time. The invention according to the present embodiment is of a non-watering system and does not have a mechanism of water melting and melting snow on the road surface, so there is no fear of freezing the road surface or the like by watering.

  The present invention is by no means limited to those shown in the above-described embodiments, and it goes without saying that various design changes can be made within the scope of the claims. One example is as follows.

(1) The heat exchanging structure 1 according to the present invention can be applied to a pavement portion of a bridge other than the bridge over the river or a general road (roadway or sidewalk), and also to various pavement portions such as a parking lot. can do. The roadway may be one side multiple lanes. Further, the upper surface 13 of the pavement 5 may be in a single-flow state inclined from the upper end toward one lower end, or may be in both flows inclined from the upper end toward the left and right lower ends. Alternatively, it may be almost horizontal.
In these cases, the working water supplied at one end of the water passage 42 may be supplied by applying a certain amount of pressure in addition to the natural flow method.

(2) FIGS. 15 to 16 show the heat exchange structure 1 in which the side surfaces of adjacent water flow plates 11 and 11 are meshed with each other to improve the effect of preventing the water flow plates from shifting, and are used here. The water flow plate 11 is formed in a cross-like shape in plan view, with rectangular projections 60, 60 projecting from the center of both side edges 59, 59 of the main body plate portion 57 that has a rectangular shape in plan view. It has a form. The main body plate portion 57 is provided with a water pipe portion 20 in parallel with both side edges 59, 59 and at a necessary interval, for example, at an interval of 100 mm. Then, the end surfaces 21 and 21 of the water flow plates 11 and 11 having such a configuration are laid in abutting state in the vertical direction (the length direction of the water flow path 42), whereby the engagement protrusions 60 and 60 are engaged. A joint recess 90 is formed, and the engagement protrusion 90 of the water flow plate 11 laid in the lateral direction is engaged with the engagement recess 90 in an engaged state.

(3) The rough surfaces 31 and 32 provided on the upper and lower surfaces 29 and 30 of the water flow plate main body 19 may be linear grooves extending in one direction, bent grooves, concave parts such as a circle or a quadrangle, It may be a shaped part or the like. Furthermore, in the process of manufacturing the water flow plate main body 19, before the concrete is hardened, gravel with a diameter of 3 to 5 mm can be sprayed on the surface, and a rough surface can be formed by lightly tapping the sprayed surface. .
In short, the waterproof layer 10 is in a state of biting into the lower rough surface 32, and the adhesive layer 15 is in a state of biting into the upper rough surface 31, so that the base layer 9 and the water flow plate laying layer 12 What is necessary is just to be able to integrate the three members of the upper pavement layer 17 into a stable structure.

(4) As shown in FIG. 17, the water pipe portion 20 provided in the water plate main body 19 can be formed by embedding the pipe 61 made of steel or resin in the water plate main body 19. And this water flow pipe part 20 is not only arrange | positioned in the center part of the thickness direction of the water flow board main body 19, but may be provided in the state displaced up and down.

(5) When the water flow plate 11 is made of high-strength fiber reinforced concrete, the strength is set to, for example, about 100 to 200 N / mm ^{2 in a} roadway through which a large automobile passes, and the road width is narrow and light. For example, 60 to 100 N / mm ² can be set on a roadway through which a simple automobile passes, and about 30 to 60 N / mm ² can be set on a sidewalk.

(6) FIG. 18, FIG. 19 shows the case where the water flow board 11 is divided into upper and lower parts, and is configured as a water flow board made of concrete having a thickness of 50 to 60 mm, for example. The required water pipe part 20 is formed by combining the split pieces 63 and 65. In this case, the contact surfaces 66 and 67 of the upper and lower divided pieces 63 and 65 are preferably roughened and the corresponding contact surfaces 66 and 67 are bonded to each other.

(7) FIGS. 20 to 21 show another embodiment of the water flow pipe portion 20 provided in the water flow plate main body 19, from one end 22 a of the opposite end portions 22, 22 of the water flow plate main body 19 to the other. It is provided so as to extend linearly toward 22b. In FIG. 20, both end openings 35 a and 35 b of the water flow pipe portion 20 are opened at the upper surface 29 and the lower surface 30 of the water flow plate main body 19. The water flow plate 11 having such a configuration can be used, for example, for construction of a sidewalk, and the working water supplied through the upper end opening 35a can be discharged through the lower end opening 35b.
21 shows a case where one end 35a of both end openings 35, 35 of the water flow pipe section 20 is opened on the surface 29 on the water plate body 19 and the other 35b is opened on the end face 21 of the water plate body 19. Further, FIG. 22 shows that one end 35a of both end openings 35, 35 of the water flow pipe portion 20 is opened at the end face 21 of the water plate main body 19 and the other 35b is passed through the surface 30 below the water plate main body 19. Open.

(8) The water flow plate 11 can be formed using ordinary concrete in addition to the above-described high-strength fiber reinforced concrete.

(9) As long as the working water supplied to the water passage 42 can achieve purposes such as snow melting and freezing prevention on the road surface and the like, and cooling of the road surface, ground water, purified water, industrial wastewater, etc. in addition to the river water described above It may be.

(10) Further, the supplied working water may be supplied at the lower end and discharged at the upper end even when the water passage 42 has a constant gradient.

(11) The upper pavement layer 17 may be a simple asphalt layer or a concrete layer in addition to the porous asphalt layer or the porous concrete layer.

(12) The foundation layer 9 may be one obtained by smoothing the upper surface of an existing foundation layer such as an existing concrete slab with mortar or grout.

(13) The water-stopping joint material interposed between the end surfaces of the adjacent water flow plates 11 and 11 or between the side surfaces may be a putty interposed by application, spraying, or injection.

(14) The adhesive layer 15 provided on the upper surface 13 of the water flow plate laying layer 12 may be an emulsion having adhesiveness.

(15) As another aspect of the means for supplying the working water to the water passages 42 arranged in parallel, the discharge ports are arranged in parallel in the water supply pipes that are extended in the direction in which the water passages 42 are arranged in parallel. In addition, a configuration in which the discharge port and one end of the corresponding water passage are connected by a communication pipe can be exemplified. This connection can be performed, for example, by connecting one end of the communication pipe to the discharge port by insertion or the like and inserting the other end into one end of the water passage.
In the case of adopting the configuration in which the communication pipes are connected in this way, even when the water passage 42 has a certain gradient, the working water such as river water supplied at the lower end (the one end) is passed through the passage. The water can be supplied to the water channel without leakage, and can be discharged at the upper end of the water flow channel. The supply flow rate of the working water to the water passage 42 can be adjusted with a flow meter.

DESCRIPTION OF SYMBOLS 1 Heat exchange structure 2 Bridge 3 Roadway 5 Pavement part 6 Road surface 9 Ground layer 10 Waterproof layer 11 Water flow board 12 Water flow board laying layer 15 Adhesive layer 17 Upper pavement layer 19 Water flow board main body 20 Water flow pipe part 21 End face 23 Water flow Surface of plate main body 29 Upper surface of water flow plate main body 30 Lower surface of water flow plate main body 31 Rough surface 32 Rough surface 33 Groove portion 35 End opening 42 Water passage 45 Water supply pipe 50 Drainage facility 50a Drain groove 51 Water passage Inner peripheral surface 53 drainage pipe 55 lower communication hole 57 main body plate portion 60 engaging protrusion 61 pipe

Claims (6)

The water flow plate is laid vertically and horizontally by interposing a waterproof layer containing adhesive on the upper surface of the foundation layer made of a concrete layer, asphalt layer, etc., which is provided in a series with a smooth upper surface. A pavement part is formed by providing an upper pavement layer in a series of states via an adhesive layer on the upper surface of the water flow plate laying layer.
The water flow plate is linearly extended from one end of the opposite end of the water flow plate body to the other inside the water flow plate body made of a flat plate made of impermeable precast concrete, A water pipe portion closed in the circumferential direction is provided, and both end openings of the water pipe portion are open on the surface of the water plate main body, and the end opening is open on the end surface of the water flow plate main body. The said water flow board by which the water flow path which consists of a water flow pipe part which connected was formed by joining the end surfaces of adjacent water flow boards in the abutting state via a water-stopping joint material so that it may mutually communicate. A laying layer is provided,
The working water supplied at one end of the water passage is discharged at the other end of the water passage,
In addition, the upper and lower surfaces of the water flow plate main body are formed to be rough surfaces, and the waterproof layer is in a state of biting into the lower rough surface and the adhesive layer is in a state of biting into the upper rough surface. Heat exchange structure in pavement that features The water flow plate is laid vertically and horizontally by interposing a waterproof layer containing adhesive on the upper surface of the foundation layer made of a concrete layer, asphalt layer, etc., which is provided in a series with a smooth upper surface. The upper pavement layer as a drainage pavement layer composed of a porous asphalt layer, a porous concrete layer, or the like is provided in a continuous state via an adhesive layer on the upper surface of the water flow plate laying layer. A pavement is formed,
The water flow plate is made of impervious precast concrete made of high-strength fiber reinforced concrete, inside the water flow plate main body made of a flat plate having a square shape or a rectangular shape in plan view, A water passage pipe portion that is closed in the circumferential direction is provided so as to extend linearly from one of the opposite end portions viewed in the transverse direction of the road surface to the other. Opening is made on the surface of the plate body, and the end surfaces of the adjacent water flow plates are brought into contact with each other via a watertight joint material so that the end openings in the open state are communicated with each other. By joining in a state, the water flow plate laying layer is provided in which a water flow path composed of a continuous water flow pipe portion is formed, and the working water as river water supplied at one end of the water flow path is supplied to the water flow path. It is designed to be discharged at the other end of the water channel, Rainwater penetrates the serial drainage pavement layer is adapted to be discharged flows down the top surface of the water passage plate laid layer,
In addition, the upper and lower surfaces of the water flow plate main body are formed to be rough surfaces, and the waterproof layer is in a state of biting into the lower rough surface and the adhesive layer is in a state of biting into the upper rough surface. Heat exchange structure in pavement that features   The heat exchange structure in a pavement according to claim 1 or 2, wherein both end openings of the water flow pipe part are opened at opposite end faces of the water flow plate body.   The heat exchanging structure in a pavement according to claim 1, wherein the upper pavement layer is a drainage pavement layer made of a porous asphalt layer, a porous concrete layer, or the like.   The heat exchange structure in a pavement according to claim 1, wherein the water flow plate body is a flat plate made of precast concrete using high-strength fiber reinforced concrete. The upper surface of the ground concrete layer provided with a smooth upper surface and a series of layers is provided with a water-permeable plate laid vertically and horizontally by interposing a waterproof layer containing an adhesive, and the water-permeable plate laying layer is provided. When forming the pavement part by providing the upper pavement layer in a series of states through the adhesive layer on the upper surface of the plate laying layer, the water flow plate constituting the water permeable plate laying layer,
A water passage plate closed in the circumferential direction so as to extend linearly from one of opposite ends of the water passage plate main body to the other inside the water passage plate main body made of a flat body made of impermeable precast concrete. A water pipe portion is provided, and both end openings of the water flow pipe portion are opened on the surface of the water flow plate main body, and the lower surface of the water flow plate main body is in a state where the adhesive of the waterproof layer is engulfed In addition, the water passage plate is characterized in that the upper surface of the water passage plate main body is formed into a rough surface that bites into the adhesive layer.

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