JP2008007936A - Snow-melting structure and construction method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a snow-melting structure capable of simplifying asphalt-layer laying work and reducing the amount of asphalt used, and a construction method for the snow-melting structure. <P>SOLUTION: This snow-melting structure 120 comprises: a pavement surface 120 in which a groove 122 is formed in a prescribed pattern; a linear heater 130 which is embedded in the groove 122; a room temperature setting asphalt agent 140 which is hardened after being filled in the groove 122; and the asphalt layer 150 which is laid on the pavement surface 120. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a snow melting structure and a method for constructing a snow melting structure.

  Snow melting structures are known for melting snow accumulated by heating elements embedded in roads, parking lots, entrance porches, etc. in snowy regions. The snow melting structure includes a heating wire type snow melting structure, a boiler type snow melting structure, a boiler heat type snow melting structure, a groundwater reduction type snow melting structure, a groundwater heat source heat pump type snow melting structure, and the like. Among these snow melting structures, the heating wire type snow melting structure is relatively inexpensive in construction and maintenance, has a characteristic that it is not easily damaged by asphalt flow, and has low noise and vibration, so it is widely used. (See, for example, Non-Patent Document 1 and Patent Documents 1 and 2.)

  FIG. 8 is a view for explaining a conventional snow melting structure 700 described in Non-Patent Document 1. In FIG. In the conventional snow melting structure 700, as shown in FIG. 8, a linear heater 720 made of heat-generating fiber, nichrome wire, or the like is laid on a roadbed 710 made of crushed stone or the like, and an ascon is further provided above the linear heater 720. The asphalt layer 730 is laid.

  FIG. 9 is a diagram for explaining a conventional snow melting structure 800 described in Patent Document 1. In FIG. In the conventional snow melting structure 800, as shown in FIG. 9, a sheet 820 with a linear heater is laid on a roadbed 810 such as concrete or gravel, and an asphalt layer 830 is further laid above the sheet 820 with a linear heater. Has the structure.

  FIG. 10 is a view for explaining a conventional snow melting structure 900 described in Patent Document 2. In FIG. In the conventional snow melting structure 900, as shown in FIG. 10, an embedded heat generating sheet 920 is laid on a roadbed 910 such as a base asphalt layer, and an asphalt layer (surface asphalt layer) 930 is further provided above the embedded heat generating sheet 920. Has a structure laid.

"Snow melting method comparison", [online], Kozuruya Co., Ltd. [Search February 16, 2006], Internet <URL: http: //www.kouzuruya.com/meltsnow/kouhouhikaku.htm> JP-A-8-120611 JP 2005-220599 A

  However, in the conventional snow melting structure 700, the conventional snow melting structure 800, or the conventional snow melting structure 900, all of the linear heater 720, the linear heater-equipped sheet 820, or the embedded heating sheet 920 laid on the roadbed. Since the asphalt layers 730, 830, and 930 are further laid on the upper side, when the asphalt layers 730, 830, and 930 are laid, the linear heater 720, the linear heater-equipped sheet 820, or the embedded heating sheet 920 is obstructive. Thus, there is a problem that the work of laying the asphalt layers 730, 830, and 930 becomes complicated.

  Moreover, in the conventional snow melting structure 700, the conventional snow melting structure 800, or the conventional snow melting structure 900, all are laid on the roadbeds 710, 810, and 910, the linear heater 720, the sheet | seat 820 with a linear heater, or embedding. Since the asphalt layers 730, 830, and 930 are further laid above the heating sheet 920, the linear heater 720, the linear heater-equipped sheet 820, or the embedded heating sheet 920 is prevented from protruding from the road surface. It is necessary to make the asphalt layers 730, 830, and 930 relatively thick. For this reason, there has been a problem that it is necessary to use a relatively large amount of asphalt.

  Accordingly, the present invention has been made to solve such a problem, and an object thereof is to provide a snow melting structure capable of simplifying the work of laying an asphalt layer and reducing the amount of asphalt used. And Moreover, it aims at providing the construction method of the snow melting structure for constructing such a snow melting structure.

(1) The snow melting structure of the present invention has a pavement surface in which grooves are formed in a predetermined pattern, linear heaters embedded in the grooves, and room temperature curing that is cured after filling the grooves. It is characterized by comprising an asphalt agent and an asphalt layer laid on the pavement surface.

  For this reason, according to the snow melting structure of the present invention, since the linear heater has a structure embedded in the groove, the linear heater does not protrude upward from the pavement surface. As a result, when the asphalt is laid, the linear heater does not get in the way and the asphalt laying operation becomes complicated, and the operation of laying the asphalt layer can be simplified.

  Further, according to the snow melting structure of the present invention, since the linear heater has a structure embedded in the groove, the linear heater does not protrude upward from the pavement surface. As a result, it is not necessary to relatively increase the thickness of the asphalt layer, and the amount of asphalt used can be reduced.

  Furthermore, according to the snow melting structure of the present invention, since the asphalt layer is laid through the cured room temperature curable asphalt agent, the high temperature asphalt directly contacts the linear heater when laying the asphalt layer. Nothing will happen. As a result, the linear heater is not deteriorated by the heat of the molten asphalt when the asphalt layer is laid. This also widens the range of selection of the linear heater to be used. For example, a linear heater having heat resistance (for example, 85 ° C.) that cannot withstand the heat of molten asphalt (for example, 160 ° C. to 170 ° C.) can be used.

  In the snow melting structure of the present invention, the pavement surface is preferably a pavement surface made of asphalt (including ascon), a pavement surface made of concrete, or the like.

  Further, in the snow melting structure of the present invention, the room temperature curable asphalt agent is a mixture of sand in which asphalt fine particles are dispersed in water (sometimes referred to as an asphalt emulsion) (this is called a road surface patch). May be preferably used. In this case, the room temperature curable asphalt agent is cured in, for example, about 1 hour after flowing into the groove.

  In the snow melting structure of the present invention, the groove width is preferably in the range of 3 mm to 10 mm, and the groove depth is in the range of 10 mm to 30 mm, depending on the type of linear heater. Is preferred.

  With this configuration, it is possible to satisfactorily embed a linear heater inside the groove.

  In the snow melting structure of the present invention, the thickness of the asphalt layer laid on the pavement surface is preferably 30 mm or more.

  With this configuration, it is possible to obtain sufficient mechanical strength and flatness.

  In the snow melting structure of the present invention, the groove interval is preferably in the range of 200 mm to 350 mm, although it depends on the type of linear heater.

  By comprising in this way, it becomes possible to melt snow uniformly with little energy.

(2) In the snow melting structure of the present invention, the linear heater is a linear heater having a flat cross section, and the linear heater is embedded in the groove so that the longitudinal direction of the cross section is along the vertical direction. It is preferable that

  By comprising in this way, since the load added to a linear heater becomes small, it becomes possible to lengthen the lifetime of a linear heater. Moreover, since it becomes easy to bend a linear heater along a groove | channel, the operation | work which embeds a linear heater in the inside of a groove | channel becomes easy.

(3) In the snow melting structure of the present invention, it is preferable that the corner portion of the groove has a structure in which the inner corner portion is removed.

  With this configuration, the radius of curvature of the linear heater at the corner of the groove can be increased (for example, 20 mm or more), and the life of the linear heater can be extended.

(4) In the snow melting structure of the present invention, the linear heater is a linear heater having a PTC (Positive Temperature Coefficient) heating element and a pair of electrodes embedded in the PTC heating element. preferable.

  With this configuration, the PTC heating element generates heat when the ambient temperature falls, and the PTC heating element does not generate heat when the ambient temperature rises. Therefore, wasteful electricity is not used and energy consumption is reduced. Is possible.

  In the snow melting structure of the present invention, the PTC heating element is a resistance change characteristic having a positive temperature coefficient (that is, the electrical resistance increases as the ambient temperature increases and decreases as the ambient temperature decreases). Characteristic) and generates heat when an AC voltage is applied to a pair of electrodes embedded in the PTC heating element.

(5) In the snow melting structure of the present invention, it is preferable to further include a controller for controlling the linear heater and an electric wire for connecting the linear heater and the controller.

  By configuring in this way, it becomes possible to perform optimal heat generation control on the snow melting structure from a place (for example, indoors) separated from the snow melting structure.

  In the snow melting structure of the present invention, it is preferable to connect the linear heater and the electric wire using a crimp terminal.

  By comprising in this way, the reliable connection between a linear heater and an electric wire is attained.

  In the snow melting structure of the present invention, it is preferable to cover a portion connecting the linear heater and the electric wire with a heat shrinkable tube (resin tube that shrinks in the radial direction by heating).

  By comprising in this way, it becomes possible to protect the part which connects a linear heater and an electric wire over a long period of time, and it becomes possible to comprise a highly reliable connection structure.

  In the snow melting structure of the present invention, it is preferable that a width of the groove in a portion connecting the linear heater and the electric wire is in a range of 30 mm to 50 mm.

  By comprising in this way, the part which connects a linear heater and an electric wire can be embedded in the inside of a groove | channel, and it becomes possible to comprise a highly reliable connection structure.

(6) In the snow melting structure of the present invention, the snow melting structure is provided with a gradient, and the controller controls the linear heater installed in a relatively low place so that the energization time is relatively short. It preferably has a function of controlling the linear heater.

  With this configuration, water generated by melting snow at a relatively high place flows toward a relatively low place, so that snow melting is performed at a relatively low place more quickly than at a relatively high place. . For this reason, energy consumption is further reduced by performing efficient snow melting by controlling the linear heater so that the energization time is relatively shortened for the linear heater installed in a relatively low place. It becomes possible.

(7) In the snow melting structure of the present invention, it is preferable that a heat insulating material is disposed at the bottom of the groove, and the linear heater is embedded above the heat insulating material.

  By comprising in this way, the heat from a linear heater becomes difficult to escape below, and it becomes possible to further reduce energy consumption.

(8) The snow melting structure construction method of the present invention is a snow melting structure construction method for constructing the snow melting structure of the present invention, the first step of forming the groove in a predetermined pattern on the pavement surface, The second step of embedding a linear heater inside the groove, the third step of pouring and curing the room temperature curable asphalt agent inside the groove, and the fourth step of laying the asphalt on the pavement surface are performed. It is characterized by including in order.

  For this reason, according to the construction method of the snow melting structure of this invention, it becomes possible to construct | assemble the above-mentioned snow melting structure of this invention.

  In this case, the snow melting structure of the present invention may be constructed using the existing road, parking lot, and entrance porch as it is, or the surface of the pavement surface in the existing road, parking lot, entrance porch is shaved by a predetermined amount. After that, the snow melting structure of the present invention may be constructed.

  In the snow melting structure construction method of the present invention, the first step of forming the groove on the pavement surface is preferably performed using a cutter.

(9) The snow melting structure construction method of the present invention is a snow melting structure construction method for constructing the snow melting structure of the present invention, and is a first step of forming the pavement surface in which the grooves are formed in a predetermined pattern. A second step of embedding a linear heater inside the groove, a third step of pouring a room temperature curable asphalt agent into the groove and curing, and a fourth step of laying asphalt on the pavement surface, Are included in this order.

  For this reason, the snow melting structure of the present invention described above can also be constructed by the snow melting structure construction method of the present invention. The construction method of the snow melting structure of the present invention is suitable when a road, a parking lot, and an entrance porch are newly constructed.

(10) In the construction method of the snow melting structure of the present invention, a linear heater having a flat cross section is used as the linear heater, and in the second step, the longitudinal direction of the cross section of the linear heater is a vertical direction. The linear heater is preferably embedded in the groove so as to be along.

  By adopting such a method, in the constructed snow melting structure, the load applied to the linear heater is reduced, so that the life of the linear heater can be extended. Moreover, since it becomes easy to bend a linear heater along a groove | channel, the operation | work which embeds a linear heater in the inside of a groove | channel becomes easy.

(11) In the construction method of the snow melting structure of the present invention, it is preferable that the corner portion of the groove has a structure in which the inner corner portion is removed.

  By adopting such a method, the radius of curvature of the linear heater at the corner of the groove can be increased (for example, 20 mm or more), and the life of the linear heater can be extended.

(12) In the construction method of the snow melting structure of the present invention, in the second step, a wire in which an electric wire for connecting the linear heater and a controller for controlling the linear heater is connected in advance. It is preferable to embed the heater in the groove.

  By setting it as such a method, the construction operation | work of a snow melting structure can be made easy as a whole by performing the connection operation | work of a linear heater and an electric wire before installation of a linear heater.

(13) In the construction method of the snow melting structure of the present invention, between the second step and the third step, an electric wire for connecting the linear heater and a controller that controls the linear heater; It is preferable that the method further includes a step of connecting the linear heater.

  By setting it as such a method, the connection operation of a linear heater and an electric wire can be flexibly performed according to the condition of the construction site of a snow melting structure.

  Hereinafter, the snow melting structure and the method for constructing the snow melting structure of the present invention will be described based on the embodiments shown in the drawings.

Embodiment 1
FIG. 1 is a view for explaining a snow melting structure 100 according to the first embodiment. FIG. 1A is a diagram illustrating a planar structure of the snow melting structure 100, and FIG. 1B is an enlarged cross-sectional view of the snow melting structure 100. FIG. 2 is a view for explaining the snow melting structure 100 according to the first embodiment. 2A is a partially enlarged view of the corner portion A of the groove 122 in the snow melting structure 100 according to the first embodiment, and FIG. 2B is a portion of the corner portion A of the groove 122 in the snow melting structure 100a of Comparative Example 1. It is an enlarged view. FIG. 3 is a view for explaining the snow melting structure 100 according to the first embodiment. FIG. 3A is a diagram showing the structure of the linear heater 130, and FIG. 3B is a longitudinal sectional view schematically showing a state in which the linear heater 130 and the controller 180 are connected by the electric wires 170. FIG. 3C is a cross-sectional view schematically showing a connection portion 160 between the linear heater 130 and the electric wire 170.

  As shown in FIG. 1, the snow melting structure 100 according to the first embodiment includes a pavement surface 120 in which grooves 122 are formed in a predetermined pattern, a linear heater 130 embedded in the grooves 122, and grooves 122. A normal temperature curable asphalt agent 140 that is hardened after being filled therein and an asphalt layer 150 laid on the pavement surface 120 are provided.

  In the snow melting structure 100 according to the first embodiment, the pavement surface 120 is a pavement surface made of asphalt (including ascon).

  Further, in the snow melting structure 100 according to the first embodiment, as the room temperature curable asphalt agent 140, a mixture of asphalt emulsion in which fine particles of asphalt are dispersed in water (sand patch) is used. As the room temperature curable asphalt agent 140, a material that cures in about one hour after being poured into the groove 122 is used.

  In the snow melting structure 100 according to the first embodiment, the width of the groove 122 is 6 mm, and the depth of the groove 122 is 20 mm.

  In the snow melting structure 100 according to the first embodiment, the thickness of the asphalt layer 150 laid on the pavement surface 120 is 30 mm.

  In the snow melting structure 100 according to the first embodiment, the interval between the grooves 120 is 300 mm.

  In the snow melting structure 100 according to the first embodiment, the linear heater 130 is a linear heater having a flat cross section as shown in FIG. 3A, and the linear heater 130 is shown in FIG. As shown, it is embedded in the groove 122 so that the longitudinal direction of the cross section is along the vertical direction.

  In the snow melting structure 100 according to the first embodiment, the corner portion A of the groove 122 has a structure 124 in which the inner corner portion is suspended as shown in FIG.

  In the snow melting structure 100 according to the first embodiment, as illustrated in FIG. 3A, the linear heater 130 includes a PTC heating element 132 and a pair of electrodes 134 embedded in the PTC heating element 132. It is a linear heater.

  The PTC heating element 132 is a heating element having a resistance change characteristic having a positive temperature coefficient (that is, a characteristic in which the electrical resistance increases when the ambient temperature increases and decreases when the ambient temperature decreases). That is, heat is generated by applying an AC voltage to a pair of electrodes 134 embedded in the PTC heating element 132.

  In the snow melting structure 100 according to the first embodiment, as shown in FIG. 3B, a controller 180 that controls the linear heater 130 and an electric wire 170 that connects the linear heater 130 and the controller 180 are provided. Further prepare.

  In the snow melting structure 100 according to the first embodiment, as illustrated in FIG. 3C, the linear heater 130 (a pair of electrodes 134) and the electric wire 170 (a pair of core wires 172) are connected using a crimp terminal 174. I am going to do that.

  In the snow melting structure 100 according to the first embodiment, the periphery of the crimp terminal 174 is covered with an insulating tape 176, and the entire portion connecting the linear heater 130 and the electric wire 170 is a heat-shrinkable tube (Sumitube manufactured by Sumitomo Electric Fine Polymer Co., Ltd. (Registered trademark of Sumitomo Electric Industries, Ltd.)) 178.

  In the snow melting structure 100 according to the first embodiment, the width of the groove 122 in the portion (connection portion 160) connecting the linear heater 130 and the electric wire 170 is wide (for example, 30 mm) as shown in FIG. .)is doing.

  According to the snow melting structure 100 according to the first embodiment configured as described above, since the linear heater 130 has a structure embedded in the groove 122, the linear heater 130 protrudes upward from the pavement surface 120. Disappears. As a result, when the asphalt layer 150 is laid, the linear heater 130 does not get in the way and the asphalt laying operation becomes complicated, and the asphalt layer laying operation can be simplified.

  Further, according to the snow melting structure 100 according to the first embodiment, since the linear heater 130 has a structure embedded in the groove 122, the linear heater 130 does not protrude upward from the pavement surface 120. As a result, it is not necessary to relatively increase the thickness of the asphalt layer 150, and the amount of asphalt used can be reduced.

  Further, according to the snow melting structure 100 according to the first embodiment, since the asphalt layer 150 is laid through the hardened room temperature curable asphalt agent 140, when the asphalt layer 150 is laid, the high-temperature asphalt is linear. There is no direct contact with the heater 130. As a result, the linear heater 130 is not deteriorated by the heat of the molten asphalt when the asphalt layer 150 is laid. This also increases the range of selection of the linear heater 130 to be used. For example, a linear heater having heat resistance (for example, 85 ° C.) that cannot withstand the heat of molten asphalt (for example, 160 ° C. to 170 ° C.) can be used.

  In the snow melting structure 100 according to the first embodiment, although depending on the type of the linear heater 130, the width of the groove 122 is set to 6 mm and the depth of the groove is set to 20 mm. It becomes possible to embed well.

  In the snow melting structure 100 according to the first embodiment, since the thickness of the asphalt layer 150 laid on the pavement surface 120 is 30 mm, sufficient mechanical strength and flatness can be obtained.

  Further, in the snow melting structure 100 according to the first embodiment, since the interval between the grooves 122 is set to 300 mm, it is possible to perform snow melting uniformly with less energy.

  Further, in the snow melting structure 100 according to the first embodiment, the linear heater 130 is a linear heater having a flat cross section, and the linear heater 130 is disposed inside the groove 122 so that the longitudinal direction of the cross section is along the vertical direction. Since the load applied to the linear heater 130 is reduced, the life of the linear heater 130 can be extended. Further, since the linear heater 130 can be easily bent along the groove 122, the work of embedding the linear heater 130 in the groove 122 is facilitated.

  Further, in the snow melting structure according to the first embodiment, since the corner portion of the groove 122 has the structure 124 in which the inner corner portion is removed, as shown in FIGS. 2 (a) and 2 (b), the groove The radius of curvature of the linear heater 130 at the corner A of 122 can be increased (for example, 20 mm or more), and the life of the linear heater 130 can be extended.

  Further, in the snow melting structure 100 according to the first embodiment, the linear heater 130 includes the PTC heating element 132 and the pair of electrodes 134 embedded in the PTC heating element 132, so that the ambient temperature decreases. When the PTC heating element 132 generates heat and the ambient temperature rises, the PTC heating element 132 does not generate heat. For this reason, it is possible to reduce energy consumption without using wasteful electricity.

  In addition, the snow melting structure 100 according to the first embodiment further includes a controller 180 that controls the linear heater 130 and an electric wire 170 that connects the linear heater 130 and the controller 180. Optimal heat generation control can be performed on the snow melting structure 100 from a remote location (for example, indoors).

  In the snow melting structure 100 according to the first embodiment, the linear heater 130 (the pair of electrodes 134) and the electric wire 170 (the pair of core wires 172) are connected using the crimp terminals 174. A reliable connection between the wire 130 and the electric wire 170 is possible.

  Further, in the snow melting structure 100 according to the first embodiment, the periphery of the crimp terminal 174 is covered with the insulating tape 176, and the entire portion connecting the linear heater 130 and the electric wire 170 is further covered with the heat shrinkable tube 178. It is possible to protect the portion connecting the linear heater 130 and the electric wire 170 for a long period of time, and it is possible to configure a highly reliable connection structure.

  Further, in the snow melting structure 100 according to the first embodiment, the width of the groove 122 in the connection portion 160 that connects the linear heater 130 and the electric wire 170 is wide (for example, 30 mm). It is possible to embed the connection portion 160 that connects to 170 in the groove 122, and it is possible to configure a highly reliable connection structure.

  Next, the construction method of the snow melting structure according to the first embodiment will be described. FIG. 4 is a view for explaining the construction method of the snow melting structure according to the first embodiment. FIG. 4A to FIG. 4E are enlarged sectional views showing each step.

  The snow melting structure 100 according to the first embodiment can be constructed by a snow melting structure construction method (the snow melting structure construction method according to the first embodiment) including the following first to fourth steps.

1. 1st process First, the groove | channel 122 is formed in the pavement surface 120 with a predetermined pattern (refer Fig.4 (a) and FIG.4 (b)). The first step is performed using a cutter.

2. Second Step Next, the linear heater 130 is embedded in the groove 122 (see FIG. 4C). In the second step, the linear heater 130 to which the electric wire 170 has been connected in advance is embedded in the groove 122. By setting it as such a method, the construction work of a snow melting structure can be made easy as a whole by performing the connection work of the linear heater 130 and the electric wire 170 before laying the linear heater 130.

3. Third Step Next, the room temperature curable asphalt agent 140 is poured into the groove 122 and cured (see FIG. 4D).

4). Fourth Step Then, an asphalt layer 150 is laid on the pavement surface 120 (see FIG. 4 (e)).

  According to the construction method of the snow melting structure as described above, the snow melting structure 100 (see FIG. 1) according to the first embodiment can be constructed by a relatively easy method.

  In addition, in the construction method of the snow melting structure according to the first embodiment, the snow melting structure 110 is constructed using the existing road, parking lot, and entrance porch as they are, but the existing road, parking lot, entrance porch is used. The snow melting structure 110 may be constructed after the surface of the pavement surface 120 is cut by a predetermined amount.

[Embodiment 2]
FIG. 5 is a view for explaining the snow melting structure 102 according to the second embodiment. FIG. 5A is a diagram illustrating a planar structure of the snow melting structure 102, and FIG. 5B is a cross-sectional view of the snow melting structure 102. In FIG. 5, the same members as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The snow melting structure 102 according to the second embodiment basically has the same structure as the snow melting structure 100 according to the first embodiment. However, as shown in FIG. 5, the snow melting structure has a gradient. This is different from the case of the snow melting structure 100 according to the first embodiment.

  As described above, in the snow melting structure 102 according to the second embodiment, since the snow melting structure is sloped, the water generated by melting snow at a relatively high place flows toward a relatively low place. In the low and high places, snow melting is performed more quickly than in the relatively high places, and energy consumption can be reduced by performing efficient snow melting as a whole.

  The snow melting structure 102 according to the second embodiment has the same configuration as that of the snow melting structure 100 according to the first embodiment except for the point that the snow melting structure is sloped. This has the corresponding effect among the effects of the snow melting structure 100 according to the present invention.

[Embodiment 3]
FIG. 6 is a view for explaining the snow melting structure 104 according to the third embodiment. FIG. 6A is a diagram showing a planar structure of the snow melting structure 104, and FIG. 6B is a cross-sectional view of the snow melting structure 104. In FIG. 6, the same members as those in FIG. 1 or FIG. 5 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The snow melting structure 104 according to the third embodiment basically has the same structure as the snow melting structure 102 according to the second embodiment. However, as shown in FIG. This is different from the structure 102. That is, in the snow melting structure 104 according to the third embodiment, although not shown, the controller 182 uses a linear heater so that the energization time is relatively shortened for the linear heater 130a installed in a relatively low place. It has a function to control 130a to 130d.

  By the way, in the snow melting structure 104 according to the third embodiment, since the snow melting structure has a gradient, the water generated by melting snow at a relatively high place flows toward a relatively low place, so that it is relatively low. Snow melting takes place more quickly in the place than in the higher places. For this reason, as in the snow melting structure 104 according to the third embodiment, the linear heaters 130a to 130d are controlled so as to relatively shorten the energization time for the linear heater 130a installed in a relatively low place. Further, it is possible to further reduce energy consumption by performing more efficient snow melting.

  The snow melting structure 104 according to the third embodiment has the same configuration as that of the snow melting structure 102 according to the second embodiment except for the function of the controller. Therefore, the snow melting structure 102 according to the second embodiment has the same structure. It has a corresponding effect among the effects.

[Embodiment 4]
FIG. 7 is a view for explaining the snow melting structure 106 according to the fourth embodiment. In FIG. 7, the same members as those in FIG. 1B are denoted by the same reference numerals, and detailed description thereof is omitted.

  The snow melting structure 106 according to the fourth embodiment basically has the same structure as the snow melting structure 100 according to the first embodiment. However, as shown in FIG. This is different from the case of the snow melting structure 100. That is, in the snow melting structure 106 according to the fourth embodiment, the linear heater 130 is embedded above the heat insulating material 142 disposed at the bottom of the groove 122.

  As described above, in the snow melting structure 106 according to the fourth embodiment, since the linear heater 130 is embedded above the heat insulating material 142 disposed at the bottom of the groove 122, the heat from the linear heater 130 is directed downward. It becomes difficult to escape and energy consumption can be reduced.

  The snow melting structure 106 according to the fourth embodiment has the same configuration as that of the snow melting structure 100 according to the first embodiment except for the internal structure of the groove. It has a corresponding effect among the effects it has.

  As mentioned above, although the snow melting structure of this invention and the construction method of the snow melting structure were demonstrated based on said each embodiment, this invention is not limited to this, It can implement in the range which does not deviate from the summary. For example, the following modifications are possible.

(1) In the construction method of the snow melting structure according to the first embodiment, the grooves 122 are formed in the pavement surface 120 in the first step, but the present invention is not limited to this. For example, in the first step, a pavement surface having grooves formed in a predetermined pattern may be formed from the beginning. Such a method for constructing a snow melting structure has good suitability when a road, a parking lot, and an entrance porch are newly constructed.

(2) In the construction method of the snow melting structure according to the first embodiment, the linear heater 130 to which the electric wire 170 is connected in advance is embedded in the groove 122 in the second step. It is not limited. For example, in the second step, the linear heater 130 to which the electric wire 170 is not connected is embedded, and a step of connecting the electric wire 170 and the linear heater 130 between the second step and the third step is further performed. It is good as well. By setting it as such a method, the connection operation | work with the linear heater 130 and the electric wire 170 can be flexibly performed according to the condition of the construction site of a snow melting structure.

It is a figure shown in order to demonstrate the snow melting structure 100 which concerns on Embodiment 1. FIG. It is a figure shown in order to demonstrate the snow melting structure 100 which concerns on Embodiment 1. FIG. It is a figure shown in order to demonstrate the snow melting structure 100 which concerns on Embodiment 1. FIG. It is a figure shown in order to demonstrate the construction method of the snow melting structure which concerns on Embodiment 1. FIG. It is a figure shown in order to demonstrate the snow melting structure 102 which concerns on Embodiment 2. FIG. It is a figure shown in order to demonstrate the snow melting structure 104 which concerns on Embodiment 3. FIG. It is a figure shown in order to demonstrate the snow melting structure 106 which concerns on Embodiment 4. FIG. It is a figure shown in order to demonstrate the conventional snow melting structure 700. FIG. It is a figure shown in order to demonstrate the conventional snow melting structure 800. It is a figure shown in order to demonstrate the conventional snow melting structure 900. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100,100a, 102,104,106 ... Snow melting structure, 110 ... Roadbed, 120 ... Pavement surface, 122 ... Groove, 124 ... Structure where internal corner part was suspended, 130, 130a, 130b, 130c, 130d ... Linear heater , 132 ... PTC heating element, 134 ... Pair of electrodes, 140 ... Room temperature curable alpha-tolerant, 142 ... Thermal insulation, 150 ... Asphalt layer, 160 ... Connection part, 170 ... Electric wire, 172 ... Pair of core wires, 174 ... Crimping Terminal, 176 ... Insulating tape, 178 ... Heat shrinkable tube, 180, 182 ... Controller, 700, 800, 900 ... Snow melting structure, 710, 810, 910 ... Roadbed, 720 ... Linear heater, 730, 830, 930 ... Asphalt layer 820 ... sheet with linear heater, 822 ... linear heater, 824 ... asphalt-impregnated sheet, 920 Burying heat generating sheet

Claims (13)

A paved surface with grooves formed in a predetermined pattern;
A linear heater embedded in the groove;
A room temperature curable asphalt agent cured after being filled in the groove;
A snow melting structure comprising: an asphalt layer laid on the pavement surface. In the snow melting structure according to claim 1,
The linear heater is a linear heater having a flat cross section.
The snow melting structure, wherein the linear heater is embedded in the groove such that the longitudinal direction of the cross section is along the vertical direction. In the snow melting structure according to claim 1 or 2,
The snow melting structure, wherein the corner portion of the groove has a structure in which an inner corner portion is removed. In the snow melting structure in any one of Claims 1-3,
The snow melting structure, wherein the linear heater is a linear heater having a PTC heating element and a pair of electrodes embedded in the PTC heating element. In the snow melting structure according to any one of claims 1 to 4,
A controller for controlling the linear heater;
A snow melting structure further comprising an electric wire for connecting the linear heater and the controller. In the snow melting structure according to claim 5,
The snow melting structure is sloped,
The snow melting structure characterized in that the controller has a function of controlling the linear heater so that the energization time is relatively shortened in a linear heater installed in a relatively low place. In the snow melting structure according to any one of claims 1 to 6,
A heat insulating material is disposed at the bottom of the groove,
The snow melting structure, wherein the linear heater is embedded above the heat insulating material. A method for constructing a snow melting structure for constructing the snow melting structure according to claim 1,
A first step of forming grooves in a predetermined pattern on the pavement surface;
A second step of embedding a linear heater inside the groove;
A third step in which a room temperature curable asphalt agent is poured into the groove and cured;
And a fourth step of laying an asphalt layer on the pavement surface in this order. A method for constructing a snow melting structure for constructing the snow melting structure according to claim 1,
A first step of forming a pavement surface with grooves formed in a predetermined pattern;
A second step of embedding a linear heater inside the groove;
A third step in which a room temperature curable asphalt agent is poured into the groove and cured;
And a fourth step of laying an asphalt layer on the pavement surface in this order. In the construction method of the snow melting structure of Claim 8 or 9,
As the linear heater, a linear heater having a flat cross section is used,
In the second step, the linear heater is embedded in the groove so that the longitudinal direction of the cross section of the linear heater is along the vertical direction. In the construction method of the snow melting structure in any one of Claims 8-10,
The method for constructing a snow melting structure, wherein the corner portion of the groove has a structure in which an inner corner portion is removed. In the construction method of the snow melting structure in any one of Claims 8-11,
In the second step, the snow melting is characterized by embedding a linear heater in which a wire for connecting the linear heater and a controller for controlling the linear heater in advance is embedded in the groove. How to build the structure. In the construction method of the snow melting structure in any one of Claims 8-11,
The method further includes a step of connecting the wire heater and the electric wire for connecting the linear heater and a controller for controlling the linear heater between the second step and the third step. A method for constructing a snow melting structure as a feature.

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