JP3237012B2 - Anti-freezing groove and anti-icing device on pavement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to the prevention of freezing of a pavement road surface having a road surface gradient, particularly freezing of a pavement road surface (hereinafter referred to as "road surface") in a snowy cold region or a mountainous region. When spraying a deicing agent to prevent the freezing of the pavement road surface, to prevent the solution containing the antifreezing agent from flowing out, and to further improve the sustainability of the effect of preventing the freezing of the pavement road surface, a retention groove and Also, the present invention relates to an antifreezing groove and an antifreezing device for a pavement road surface, which are provided with a guide groove.

[0002]

2. Description of the Related Art Conventionally, as a countermeasure to prevent freezing of a pavement road surface such as a road surface, a liquid / pulverization method for preventing freezing of a pavement road surface has been used.
2. Description of the Related Art A method of spraying a powdery or granular antifreeze agent on a pavement road surface (hereinafter referred to as a "drug spraying method") has been performed. In particular, in recent years, a method of spraying a solution containing the anti-freezing agent on a pavement road (hereinafter referred to as a “solution spraying method”) is simple in handling as a measure for preventing freezing of a pavement road and is excellent in immediate effect and economical efficiency. , Is being widely used. As such a solution spraying method, when spraying a solution containing an antifreezing agent on a pavement road, moving spraying such as manual spraying or spraying by a machine such as a solution spraying car has been performed. Stationary spraying by a stationary type solution spraying device has been put to practical use in places or important places on road traffic.

[0003] In the above-mentioned chemical spraying method, a liquid, powdery, granular, or other antifreezing agent is sprayed on the pavement road surface. And will be present on the pavement. In the solution spraying method, on the pavement road surface, a `` solution containing an antifreezing agent '' in which the antifreezing agent is previously dissolved in a solvent such as water is sprayed, and the `` solution containing an antifreezing agent '' is applied. It will be on the pavement. In the following, the “solution containing the antifreezing agent” may be simply referred to as “solution”.

[0004]

However, on a pavement road surface having a road surface gradient (for example, a road surface), the road surface is present on the pavement road surface due to the road surface gradient or running of a passing vehicle (hereinafter referred to as “road surface gradient or the like”). The solution that flows out of the pavement road surface early (for example, the road shoulder) is lost, and the solution itself present on the pavement road surface decreases or the concentration of the solution decreases, so that the antifreezing effect decreases, There is a problem that the cost is increased due to an increase in the frequency of replenishment of the solution, and the influence of the flowing out solution on the surrounding soil environment is increased.

In view of the above, the present invention aims at effectively utilizing the solution on a pavement road surface having a road surface gradient, thereby maintaining the effect of preventing the freezing of the pavement road surface. It is another object of the present invention to further improve the performance and reduce the frequency of replenishment of the solution and the influence on the surrounding soil environment.

[0006]

In order to solve the above-mentioned problems,
According to the present invention, a solution containing a deicing agent that tends to flow out of a pavement due to a slope or the like on a pavement having a road surface gradient can be retained on the pavement surface. A stagnation groove formed by cutting a pavement road surface, and a solution containing a deicing agent that tends to flow out of the pavement road surface due to a road surface gradient or the like, in a direction that can be guided to return the pavement road surface to the pavement road surface. It is provided with at least one of the guide grooves formed by cutting, the retention groove and or
In the middle of the guide groove, caulk material is partially poured.
Solidify and store the solution flowing down the interior of the groove.
The anti-freeze groove on the pavement road surface, further improving the sustainability of the effect of preventing the pavement road surface from freezing. ] Is provided.

According to a second aspect of the present invention (for example, FIG. 1 or FIG. 2), when the slope of the pavement is a cross slope, the solution is paved by the slope. In a direction substantially perpendicular to the direction in which it is likely to flow out of the road surface, substantially parallel to the extension direction of the pavement road surface,
In the case where the road surface gradient of the pavement road surface is a composite gradient of a transverse gradient and a vertical gradient, the extending direction of the pavement road surface is set so as to be substantially perpendicular to the direction in which the solution is going to flow out of the pavement road surface due to the road surface gradient. It is desirably formed by cutting a pavement road surface in a diagonal direction with a single groove or a plurality of grooves substantially in parallel, so that the solution can stay on the pavement road surface. "

According to a third aspect (for example, FIG. 5 ), it is provided that "the pavement road surface is a road surface and the road surface is
When the road surface gradient is a slope with a vertical gradient
On the road surface near the position where the wheels of the passing vehicle run.
Around the position where the wheels of the passing vehicle travel,
It was formed by cutting the road surface almost parallel to the transverse direction
With the retention groove as the base, extending from both ends of the retention groove,
The gap between both grooves increases from low to high gradients
The road in a direction diagonal to the direction of extension of the road surface.
The guide grooves formed by cutting the road surface are both hypotenuses,
The cup-shaped groove on the road surface is in the direction of extension of the road surface
Formed at one or more locations,
The solution that is about to flow out to the shoulder
Can be collected on the road surface near where the wheels run "
It can also be configured.

According to a fourth aspect (for example, FIG. 3 or FIG. 4 ), the following description is made on a pavement having a road surface gradient.
Prevention of freezing that tends to flow out of pavement due to surface gradient
Pavement in a direction that allows the solution containing the agent to stay on the pavement
Due to stagnant grooves formed by cutting the road surface,
Solution containing anti-freezing agent that tries to flow off the pavement
The pavement in a direction that can be guided back on the pavement
At least one of the guide grooves formed by cutting the surface
The guide groove is provided so that the slope of the pavement
If the gradient is a composite gradient of
The solution tries to flow out of the pavement due to surface gradient
From low to high cross slope,
From the highest slope to the lowest, and
Therefore, a pavement surface enough for the solution to flow down the inside of the groove
The upper plane angle and the direction of extension of the pavement
In a diagonal direction, a single groove or a plurality of grooves are almost parallel,
It is formed by cutting a pavement road surface, and the solution is placed on the pavement road surface.
Be able to guide them back to prevent freezing of the pavement
Characterized by further improving the sustainability of the stopping effect
Anti-freeze groove on the pavement. ] Can also be provided
You.

[0010] Further, as described in claim 5 , in claim 4
In the anti-freeze groove on the pavement road surface described in the description, "In the middle of the retaining groove and or the guide groove , a caulking material is
The solution that partially infuses and solidifies and flows down the inside of the groove
Can be stored . "

Further, as shown in claim 6 (for example, FIG. 6 (c) ), "the dimensions of the retaining groove and / or the guide groove"
Has a width of 2 to 20 mm and a depth of 2 to 30 mm,
The retaining groove when the grooves are formed substantially in parallel and
Alternatively, the center interval of the guide grooves is 10 to 150 m in pitch.
m ”.

Further, as set forth in claim 7 (for example, FIG. 7), "a storage device for storing a solution containing an anti-freezing agent for preventing freezing of a pavement road surface; 7. A stationary solution spraying device comprising a spraying nozzle to be sprayed, a supply device for supplying the solution from the storage device to the spraying nozzle, and freezing prevention of a pavement road surface according to any one of claims 1 to 6. An apparatus for preventing freezing of a pavement road surface, comprising: a groove; ] Can also be provided.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1. Overall configuration and operation of the present invention The anti-freeze groove of the pavement road surface according to the present invention is provided on a pavement road surface having a road surface gradient, by including at least one of a retaining groove and a guide groove formed by cutting the pavement road surface. ,
A solution containing an anti-freezing agent that tends to flow out of the pavement road due to the road surface gradient or the like is retained on the pavement road surface for a longer time to further improve the sustainability of the effect of preventing the pavement road surface from freezing. is there.

That is, when a retaining groove is formed in a direction in which the solution can be retained on the pavement road surface, the solution can be directly retained on the pavement road surface for a longer time. In addition, when a guide groove formed in a direction that can guide the solution to return to the pavement road surface is provided, a certain time is required until the solution returned to the pavement road surface flows out of the pavement road surface again. The requirement allows, indirectly, the solution to stay longer on the pavement. Furthermore, in the case where both the retaining groove and the guide groove are provided, the respective actions of both grooves are combined, so that the solution can be synergistically retained longer on the pavement road surface. Become. In addition, the freezing prevention groove on the pavement road surface according to the present invention also includes one groove (remaining guide groove) that performs each of the above-described functions performed by both the retaining groove and the guide groove.

Here, "road slope" means, for example, when a pavement road is a road, a vertical slope such as a slope for drainage, a cross slope such as a bank of a curved section, a slope such as a slope of a slope, and the like. Composite gradient.
The “paved road surface” refers to the surface of a pavement constructed on the ground or the like. That is, the pavement road surface includes a road surface of a road on which asphalt pavement is applied, a pavement surface of a pavement ground on which concrete pavement is applied, and the like. In the following, a description will be given only of a case where the pavement surface is a road surface (straight road / curved road). However, unless otherwise specified (the invention according to claim 3 : see FIG. 5), The present invention is also applicable to the case of a pavement road surface.

[0017] The "outflow to the outside of a pavement road due to a road surface gradient or the like" refers to a pavement road surface due to, for example, the road surface gradient or running of a passing vehicle (road surface gradient or the like) when the pavement road surface is a road surface. It means that the solution present on the road surface flows to the shoulder, which is off the paved road surface. further,
The “anti-freezing agent” includes an anti-freezing agent that prevents freezing of the pavement road surface, a snow melting agent that melts snow on the pavement road surface, and the like. Furthermore, the “solution containing a cryoprotectant” includes
Unless otherwise specified (the invention according to claim 7: see FIG. 7), a liquid, powdery, granular, etc. antifreeze is sprayed and dissolved in the water on the pavement road surface, and the antifreeze is added to water in advance. And the like, but both are contained, and this may be simply referred to as “solution”. The spraying includes manual spraying, mechanical spraying, moving spraying or stationary spraying, unless otherwise specified (the invention according to claim 7: see FIG. 7).

2. Configuration and operation of each part of the present invention The anti-freeze groove on the pavement road surface according to the present invention is the “retaining groove”
And the above-mentioned "guide groove" as main components, and a combination thereof, and further added with other components. Hereinafter, the configuration and operation of each unit will be described.

(1) Retaining Grooves (See FIGS. 1 and 2) The retaining grooves 10 and 20 are formed by cutting the road surface 2 in a direction in which the solution to flow to the road shoulder 4 can be retained on the road surface 2. Is formed.

For example, as shown in FIG. 1, when the road surface gradient of the road surface 2 of the straight road 1 is the crossing gradient θ1 which decreases from the center line 3 (high side) to the road shoulder 4 (low side), The retaining groove 10 cuts the road surface 2 substantially parallel to the extending direction of the road surface 2 so as to be substantially perpendicular to the arrow Y1 indicating the direction in which the solution is about to flow to the road shoulder 4 due to the road surface gradient. It is formed. In the illustrated embodiment, the plurality of retaining grooves 10 are formed substantially in parallel, but may be a single groove.

For example, as shown in FIG. 2, the road surface gradient of the road surface 2 of the straight road 1 is equal to the cross gradient θ1 and the vertical gradient from the upper side (higher side) to the lower side (lower side) of the figure. When θ2 is a synthetic gradient, the retention groove 20 is substantially perpendicular to an arrow Y2 indicating a direction in which the solution is about to flow to the road shoulder 4 due to the road surface gradient.
In a direction oblique to the direction in which the road surface 2 extends, that is, with a plane angle θ3 with respect to the transverse direction of the road surface 2, the road surface 2
Formed by cutting. In the illustrated embodiment, the plurality of retaining grooves 20 are formed substantially in parallel, but may be a single groove.

As described above, due to the road surface gradient, the solution is
In the direction substantially parallel to or oblique to the direction in which the road surface extends, so as to be substantially perpendicular to the direction in which
By forming 0 and 20, when the flowing solution reaches the retaining grooves 10 and 20, the solution stays inside the grooves, so that the solution can stay longer on the road surface 2.

(2) Guide Grooves (See FIGS. 3 and 4) The guide grooves 30 and 40 extend the road surface 2 in a direction in which the solution to be discharged to the road shoulder 4 can be guided to return to the road surface 2. It is formed by cutting.

For example, as shown in FIG. 3, when the road surface gradient of the road surface 2 of the straight road 1 is a composite gradient of the cross gradient θ1 and the vertical gradient θ2, the guiding groove 30
In response to an arrow Y2 indicating the direction in which the solution is about to flow out to the road shoulder 4 due to the road surface gradient, the direction from the low side (road shoulder 4 side) of the transverse gradient θ1 to the high side (center line 3 side) and the vertical gradient θ2 A plane angle on the road surface 2 from the higher side (upper side of the drawing) to the lower side (lower side of the drawing), and the solution can flow down the inside of the groove by the vertical gradient θ2;
And, in a direction oblique to the extension direction of the road surface 2, that is,
The road surface 2 is formed by cutting the road surface 2 at a plane angle θ4 with respect to the transverse direction of the road surface 2. In the illustrated embodiment,
Although the plurality of guide grooves 30 are formed substantially in parallel, a single groove may be used. Further, the retaining groove 10 may be formed together.

Here, when the plane angle θ3 of the retaining groove 20 is compared with the plane angle θ4 of the guide groove 30, the plane angle θ4 has a larger inclination angle than the plane angle θ3. This is because the retention groove 20 forming the plane angle θ3 is formed by the longitudinal gradient θ2.
This is because the guide groove 30 having a plane angle θ4 allows the solution to flow down inside the groove by using the longitudinal gradient θ2, while the solution stays inside the groove opposite to the above. Therefore, the guide groove 30 is not established on the road surface 2 having no longitudinal gradient θ2.

As shown in FIG. 4, for example, the road surface gradient of the road surface 2 of the curved road 1 'is changed to the road shoulder 4' outside the curve.
In the case of a composite gradient of the transverse gradient θ1 ′ descending from the (higher side) toward the road shoulder 4 (lower side) inside the curve and the longitudinal gradient θ2, the guide groove 40 is formed by the guide groove 40 due to the road gradient. With respect to an arrow Y3 indicating a direction to flow to the shoulder 4 inside the curve, the arrow goes from the low side (the shoulder 4 inside the curve) to the high side (the shoulder 4 'outside the curve) of the cross slope θ1', and From the higher (upper part in the drawing) to the lower part (lower part in the drawing) of the vertical gradient θ2, the plane angle on the road surface 2 such that the solution can flow down the inside of the groove by the vertical gradient θ2, and the road surface 2 is formed by cutting the road surface 2 in a direction oblique to the extension direction of the road surface 2. In the illustrated embodiment, the plurality of guide grooves 40 are formed substantially in parallel, but may be a single groove. Further, the retaining groove 10 may be formed together.

The guide groove 40 may be a guide groove 40 'having a bow shape in plan view, as well as the guide groove 40 having a linear shape in plan view as described above. This is due to the fact that the road surface gradient of the road surface 2 of the curved road 1 'changes sequentially in the direction of extension of the road surface 2 according to the curve, and the direction of the arrow Y3 changes accordingly. It is formed based on the idea of always following the direction of the arrow Y3.

As described above, due to the road surface gradient, the solution becomes
, The transverse gradients θ1 and θ1 '
From the lower side to the higher side, and from the higher of the longitudinal gradient θ2 to the lower one, the plane angle is such that the solution can flow down the inside of the groove by the longitudinal gradient θ2, and
In a direction oblique to the extension direction of the road surface 2, the guide groove 30,
By forming 40, the flowing solution is formed in the guide groove 3.
When it reaches 0,40, the solution flows down inside the groove,
It will be possible to guide the solution back onto the road surface 2.
Therefore, since a certain time is required until the solution returned on the road surface 2 flows out to the road shoulder 4 again, the solution can be retained on the road surface 2 longer.

Further, when the retaining groove 10 is formed, the solution guided by the guiding grooves 30 and 40 is retained in the retaining groove 10, so that the solution is retained on the road surface 2 longer. Will be able to do it.

(3) Cup-shaped groove (see FIG. 5) The cup-shaped groove 50 is used especially in a slope where the road surface 2 has a steep vertical gradient θ2 ′.
The installation positions of the retaining groove and the guide groove are viewed in a plan view so that the solution that is about to flow out to the road shoulder 4 due to the road surface gradient can be collected on the road surface 2 ′ near the position where the wheels 55 a of the passing vehicle 55 run. It is formed by cutting the road surface 2 in combination with a cup shape.

For example, as shown in FIG. 5, when the road surface 2 of the straight road 1 is on a slope having a steep vertical gradient θ2 ', the vicinity of the position where the wheels 55a of the passing vehicle 55 travel is near. On the road surface 2 ', the retaining groove is
0a, the guide groove is a left oblique side 50b and a right oblique side 50c.
Are formed in the extension direction. Here, the cup-shaped groove 50
Is to diffuse the solution collected on the road surface 2 'near the position where the wheels 55a of the passing vehicle 55 run in the traveling direction of the passing vehicle 55 by the wheels 55a of the passing vehicle 55 running there. Therefore, the present invention is particularly suitable for a sloping road having a steep vertical gradient θ2 ′. In the illustrated embodiment, the cup-shaped groove 50 is formed at a plurality of locations, but may be formed at a single location. In addition, it may be the case where the above-mentioned cross slope θ1 is provided.

Here, the bottom 50a, which is the retaining groove,
Around the position where the wheel 55a of the passing vehicle 55 runs,
It is formed by cutting the road surface 2 substantially in parallel with the transverse direction of the road surface 2. Here, “near the position where the wheel 55a of the passing vehicle 55 travels” refers to the deviation of the traveling position of the passing vehicle 55 in the left-right direction, the width of the wheel 55a that varies depending on the type of the passing vehicle 55, and the like. Is appropriately determined. In addition, the left oblique side 50b and the right oblique side 5b, which are the guide grooves,
0c extends from both ends of the bottom side 50a, which is a retaining groove, and extends in the direction of extension of the road surface 2 so that the interval between both grooves increases from the lower (lower drawing) to the higher (upper drawing) longitudinal gradient θ2. And is formed by cutting the road surface 2 in a direction oblique to the road surface.

As described above, by forming the cup-shaped groove 50, the solution flowing down along the arrow Y4 indicating the direction in which the solution tends to flow out to the road shoulder 4 due to the road surface gradient is formed on the left oblique side 50b as the guide groove and When the solution reaches the right oblique side 50c, the solution flows down inside the groove, stays inside the bottom side 50a which is a staying groove communicating with them, and the wheel 55a of the passing vehicle 55
Are collected on the road surface 2 'near the position where the vehicle travels. Accordingly, the collected solution is diffused in the traveling direction of the passing vehicle 55 by the wheels 55a of the passing vehicle 55 traveling there, and can exert an antifreezing effect over a wide area on the road surface 2 and is spread. The solution is collected in the cup-shaped groove 50 again, so that the solution can stay longer on the road surface 2.

(4) Dimension of Groove (See FIG. 6C) Here, the stay groove and / or the guide groove are formed by cutting the road surface 2 by cutting with a cutter or the like. The dimensions of the retaining groove and / or the guiding groove, for example, the width w, the depth d, and the pitch p as shown in FIG. 6C can be determined as appropriate. It is preferable that the pitch d is 2 to 30 mm, and the pitch p, which is the center interval of the grooves when a plurality of grooves are formed substantially in parallel, is 10 to 150 mm. The size of such a groove depends on the ability of the solution to stay and guide,
This is selected in consideration of the durability of the groove, prevention of corner chipping, and the like.

(5) Caulking material (see FIG. 6) The retaining groove and / or the guide groove are formed by cutting the road surface 2 to a desired length according to the purpose of each groove. is there. In the middle of the retaining groove and / or the guide groove, for example, as shown in FIG. 6, a caulking material 60 is partially injected and solidified, and a solution flowing down the inside of the groove can be stored. Can also. That is,
For example, by forming a kind of weir in the middle of each groove using a caulking material 60 having a water stopping effect made of a material such as an epoxy-based, thiochol-based, or urea-based resin, the solution flowing down along the arrow Y is When reaching the grooves and flowing down the inside of each groove, the solution can be consciously dammed and stored. In addition, the material which comprises the caulking material 60 is not limited to said each material.

3. Configuration and Operation of Application Example of the Present Invention As an application example of the anti-freeze groove on the pavement road surface according to the present invention, a “pavement road surface anti-freeze device” combined with a stationary solution spraying device can be configured. Hereinafter, the configuration and operation of the application example will be described.

As shown in FIG. 7, for example, as shown in FIG. 7, the antifreezing device for a pavement road is provided near a road surface 2, which is a pavement road, and contains a deicing agent previously dissolved in a solvent such as water. It comprises a stationary solution spraying device 70 that “sprays” the “solution” by mechanical spraying and stationary spraying, and an antifreeze groove on a pavement road surface according to any one of claims 1 to 6. Things.

The solution spraying device 70 includes a storage device 71 for storing a solution containing an anti-freezing agent for preventing the road surface 2 from freezing, and a spray nozzle embedded in the road surface 2 and spraying the solution to the road surface 2. 72, and a supply device 73 that supplies the solution from the storage device 71 to the spray nozzle 72. For example, one example is a "spreading device for a road surface deicing agent and a snow melting agent" described in JP-A-8-81929 proposed by the present applicant.

The storage device 71 is disposed underground near the road surface 2 and stores a solution therein. The solution reduced by spraying is replenished manually. The spray nozzle 72 is disposed in a direction transverse to the road surface 2 or the center line 3.
Are buried in the road surface 2 along the road, and the supplied solution is sprayed on the road surface 2. The supply device 73 is disposed at a position near the road surface 2, and includes a pump 73 a that supplies a solution from the storage device 71 to the pipe 73 b, and a spray nozzle 7.
Buried in the road surface 2 below the pipe 2 and distributes the solution supplied from the pump 73a to the plurality of spray nozzles 72
b.

As described above, by combining the solution spraying device 70 and the anti-freezing groove, accurate and easy solution spraying can be performed, and the solution to be sprayed is retained and guided, so that the solution is spread on the road surface. 2 can be retained longer. Therefore, since the solution can be effectively used, it is particularly significant that the frequency of replenishment of the solution can be reduced.

4. Other application examples of the present invention Further, as another application example of the anti-freeze groove and anti-freeze device of the pavement road surface according to the present invention, a target that is going to flow out of the pavement road surface due to a road surface gradient or the like, uses an anti-freeze agent. An application in the case of a “liquid having another function” other than the solution containing it can be considered. That is, on a paved road surface having a road surface gradient, the `` liquid having another function '' which tends to flow out of the paved road surface due to the road surface gradient or the like is retained on the paved road surface by the retaining groove and / or is guided on the paved road surface by the guide groove. By guiding in the returning direction, the sustainability of the function can be further improved. For example, in the case of spraying a liquid having a cooling function, for example, in summer when the temperature on the pavement road surface rises, it is possible to cause the liquid to stay longer on the pavement road surface by the action of the retaining groove and / or the guide groove. As a result, the temperature rise on the pavement road surface can be suppressed, and the hot air emitted from the pavement road surface can be reduced.

[0042]

As described above, the anti-freeze groove on the pavement road surface according to the present invention has the above-mentioned staying groove and / or the above-mentioned guiding groove, and the constitution of each part is devised. Because it is combined with a spraying device,
On a pavement surface having a road surface gradient, by allowing the solution containing the anti-freezing agent to stay longer on the road surface, aiming for effective use of the solution and further improving the sustainability of the effect of preventing the freezing of the pavement road surface. Thus, it is possible to reduce the frequency of replenishment of the solution and reduce the influence on the surrounding soil environment.

That is, the freezing prevention groove on the pavement road surface according to the present invention is not limited to simply forming a groove on the pavement road surface, and the solution can stay on the pavement road surface and be guided by the groove. It is particularly significant in preventing the road from freezing.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a retaining groove when a road surface gradient of a road surface of a straight road is a transverse gradient θ1, and FIG.
Is a perspective view, and (b) is a plan view.

FIGS. 2A and 2B are diagrams showing a configuration of a stay groove in a case where a road surface gradient of a road surface of a straight road is a composite gradient of a transverse gradient θ1 and a vertical gradient θ2, wherein FIG. 2A is a perspective view and FIG. It is.

3A and 3B are diagrams illustrating configurations of a guide groove and a retaining groove in a case where a road surface gradient of a road surface of a straight road is a combined gradient of a transverse gradient θ1 and a vertical gradient θ2, where FIG. 3A is a perspective view and FIG.
Is a plan view.

FIG. 4 shows a road surface gradient of a curved road having a cross slope θ1 ′.
It is a figure which shows the structure of the guide groove | channel and the retention groove | channel when it is a composite gradient of the vertical gradient (theta) 2, (a) is a perspective view,
(B) is a plan view.

FIG. 5 shows that the road surface gradient of a straight road is a vertical gradient θ2 ′.
It is a figure which shows the structure of the cup-shaped groove | channel when it is a slope part which has (a), is a perspective view, (b) is a top view.

FIG. 6 is an enlarged view showing a configuration of a retaining groove and a guide groove;
(A) is a perspective view, (b) is a plan view, and (c) is a cross-sectional view in a transverse direction.

FIGS. 7A and 7B are diagrams showing a configuration of a pavement road surface freezing prevention device, wherein FIG. 7A is a perspective view and FIG. 7B is a plan view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Straight road 1 'Curved road 2 Road surface 2' Road surface (near the position where the wheel of the passing vehicle runs) 3 Center line 4 Road shoulder 10 Retention groove 20 Retention groove 30 Guide groove 40 (Linear) guide groove 40 ' Guide groove (bow-shaped) 50 Cup-shaped groove 50a Bottom 50b Left oblique side 50c Right oblique side 55 Passing vehicle 55a Wheel 60 Caulking material 70 Solution spraying device 71 Storage device 72 Spray nozzle 73 Feeding device 73a Pump 73b Pipe θ1 Crossing gradient θ1 ′ Cross slope θ2 Longitudinal slope θ2 'Longitudinal slope θ3 Plane angle of the stay groove θ4 Plane angle of the guide groove Y arrow Y1 Arrow (straight road with cross slope θ1) Y2 arrow (straight road with cross slope θ1 and vertical slope θ2) Y3 arrow (curved road with transverse gradient θ1 'and vertical gradient θ2) Y4 arrow (straight road on slope having vertical gradient θ2') w (grooves) (the groove of) the width d depth p (groove) pitch

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E01C 11/24 E01C 7/35 E01H 3/04 E01H 10/00

Claims (7)

(57) [Claims] 1. A pavement road surface having a road surface gradient formed by cutting a solution containing a deicing agent which tends to flow out of the pavement road surface due to the road surface gradient or the like in a direction in which the solution can stay on the pavement road surface. And a guiding groove formed by cutting the pavement road surface in a direction in which a solution containing a deicing agent that tends to flow out of the pavement road surface due to a road surface gradient or the like can be guided to return to the pavement road surface. At least one of the above, and in the middle of the staying groove and / or the guiding groove,
And partially solidify the flowing material to flow down the inside of the groove
A freezing prevention groove on a pavement road surface, characterized in that the solution can be stored and the durability of the effect of preventing freezing of the pavement road surface is further improved. 2. The method according to claim 1, wherein when the road surface gradient of the paved road surface is a transverse gradient, the retaining groove is formed so as to be substantially perpendicular to a direction in which the solution tends to flow out of the paved road surface due to the road surface gradient. In a case where the road surface gradient of the pavement road surface is a combined gradient of a transverse gradient and a vertical gradient, substantially parallel to the direction of extension of the road surface, the road surface gradient causes the solution to flow out of the pavement road surface. It is formed by cutting a pavement road surface with a single groove or a plurality of grooves substantially in parallel to the direction of extension of the pavement road surface so as to be orthogonal to the extension direction of the pavement road surface, and the solution can stay on the pavement road surface. The freezing prevention groove on a pavement road surface according to claim 1, characterized in that: 3. When the pavement road surface is a road surface and the road surface gradient is a sloping portion having a vertical slope, the road surface is located near a position where wheels of a passing vehicle run. Over the vicinity of the position where the wheels of the vehicle travel, substantially parallel to the transverse direction of the road surface, the retaining groove formed by cutting the road surface as the base, extending from both ends of the retaining groove, the longitudinal gradient The guide groove formed by cutting the road surface is used as both hypotenuses in a direction oblique to the direction of extension of the road surface so that the gap between the two grooves increases from the lower side to the higher side. A groove in the shape of a cup in a plan view is formed at a single point or a plurality of points in the direction of extension of the road surface, and the road near the position where the wheel of the passing vehicle runs the solution that is going to flow to the shoulder of the road due to the road surface gradient. It can be collected on a surface. Antifreeze groove in pavement according to claim 1. 4. On a pavement surface having a road surface gradient, a freezing protection that tends to flow out of the pavement road surface due to the road surface gradient or the like.
Pour the solution containing the blocking agent in a direction that allows it to stay on the pavement
A stagnation groove formed by cutting the pavement surface, and freezing protection that tends to flow out of the pavement road due to the road surface gradient etc.
A solution containing a blocking agent can be directed to return on the pavement
Guide grooves formed by cutting the pavement
At least one of the guide grooves , wherein the guide groove has a road surface gradient of the pavement road surface that is a combined gradient of a transverse gradient and a longitudinal gradient.
In the case of an arrangement, the solution
Crosses the direction in which
From the lower side to the higher side and the higher the vertical gradient
To the lower side, and the inside of the groove is
The plane angle on the pavement should be small enough to allow the solution to flow down.
And cut the pavement road surface in a direction oblique to the extension direction of the pavement road surface, with a single groove or a plurality of grooves substantially parallel to each other.
Formed to guide the solution back onto the pavement
Obtained manner, further is improved persistence of the effect of preventing the freezing of pavement
An anti-freeze groove on the pavement surface , characterized in that 5. The method according to claim 5, wherein the retaining groove and / or the guiding groove are provided.
Inside, the caulking material is partially injected and solidified,
The solution flowing down the inside of the groove can be stored.
The freezing prevention groove on a pavement road surface according to claim 4, wherein 6. The retention groove and / or the guide groove having a width of 2 to 20 mm and a depth of 2 to 30 mm when the plurality of grooves are formed substantially in parallel. The center spacing of the pitch 10-1
The freezing prevention groove on a pavement road surface according to any one of claims 1 to 5 , wherein the groove is 50 mm. 7. A storage device for storing a solution containing an antifreezing agent for preventing freezing of a pavement road surface, a spray nozzle embedded in the pavement road surface for spraying the solution on the pavement road surface, and supplying the solution from the storage device to the spray nozzle. A pavement comprising: a stationary type solution spraying device configured by a supply device that performs the cooling operation; and a freeze prevention groove on a pavement road surface according to any one of claims 1 to 6. Road surface freezing prevention device.