JP2523412Y2 - Pavement repair equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an apparatus for repairing a pavement, and more particularly to an apparatus for restoring the function of a pavement having water permeability.

<Related Art> For example, on a road, in order to absorb noise during traveling of a vehicle or maintain good drainage, after paving with an asphalt mixture having a normal particle size, the porosity is further increased on the pavement. The pavement (hereinafter, simply referred to as a pavement) is made of an asphalt mixture having large water content and a small amount of fine particles. Then, rainwater or the like is allowed to permeate into the pavement to maintain good drainage of the surface of the pavement body and to improve sound absorption. The permeated water flows in the pavement and flows into the gutter. Here, the permeability of the pavement is approximately 1/100
(Cm / sec).

<Problem to be Solved by the Invention> By the way, in summer, the pavement is softened, and the pavement at the rutted portion is crushed during running of the vehicle, which has a problem that the water permeability and the sound absorption are significantly deteriorated.

Further, in Japanese Patent Publication No. 61-47249, there is a method in which high-pressure water is sprayed on a pavement to eliminate clogging of the pavement, but this can eliminate the collapse of a rut. There is a problem that the function of the pavement cannot be restored and a large amount of water is used, so that the roadbed is damaged and durability is reduced.

The present invention has been made in view of such circumstances.
An object of the present invention is to provide a pavement repairing device that can repair a pavement collapse even in a rutted portion.

<Means for Solving the Problems> For this reason, the present invention provides a box-shaped body having an opening at the lower end opening toward the surface of the heated pavement, and a box-shaped body attached to the lower end of the box-shaped body. The vehicle is provided with a sealing member for sealing the gap between the lower end of the box-shaped body and the surface of the pavement in an airtight manner, and a gas supply device for supplying high-pressure gas to the box-shaped body.

<Action> Then, a high gas pressure was applied to the surface of the heated pavement to remove the mortar component of the pavement to form voids and increase water permeability.

<Embodiment> An embodiment of the present invention will be described below with reference to FIGS.

In FIG. 1, a base end of a first swing bracket 2 is attached to a front end of a vehicle body 1 so as to swing freely in a substantially horizontal plane. A hydraulic cylinder 3 is mounted. A first lifting bracket 4 is provided at the lower end of the piston rod of the first lifting hydraulic cylinder 3.
At the front end of the first lifting bracket 4, an auxiliary heater 5 composed of a burner or the like is attached so as to swing freely in a substantially vertical plane. Fuel (for example, propane gas) is supplied to the auxiliary heater 5 from a fuel tank 6.

A first swing hydraulic cylinder 7 is attached to the vehicle body 1, and a piston rod of the first swing hydraulic cylinder 7 is attached to a corner of the first swing bracket 2. Then, the first swing bracket 2 is swung by the first swing hydraulic cylinder 7, and the auxiliary heater 5 is turned in a substantially horizontal plane.

A base end portion of a second swing bracket 8 is attached to a substantially lower portion of the center of the vehicle body 1 so as to swing freely in a substantially horizontal plane.
A hollow air box 9 as a box-like body is attached to the swing bracket 8 so as to be freely movable in the vertical direction. The air box 9 includes a cylindrical portion attached to the second swing bracket 8 and a box-shaped portion attached to the lower end of the cylindrical portion and having a lower end opening. A seal cover 10 is attached to the air box 9 so as to cover a lower end opening of the box-shaped portion. An outer peripheral portion of the seal cover 10 is provided with a seal portion for hermetically sealing a gap between the lower end portion of the box-shaped portion of the air box 9 and the surface of the pavement, and the inside of the seal portion covers the opening. A porous member is provided.

A second lifting hydraulic cylinder 11 is mounted on the second swing bracket 8, and a piston rod of the second lifting hydraulic cylinder 11 is mounted on the air box 9. Then, the air box 9 is moved up and down by operating the second lifting hydraulic cylinder 11, so that the air box 9 is raised and lowered and the degree of adhesion to the surface of the pavement is increased.

A second swing hydraulic cylinder 12 is attached to the vehicle body 1, and a piston rod of the second swing hydraulic cylinder 12 is attached to a corner of the second swing bracket 8. Then, the second swing bracket 8 is swung by the second swing hydraulic cylinder 12, so that the air box 9 is turned in a substantially horizontal plane.

The air box 9 is supplied with high-pressure air (for example, 4 to 5 k) from a compressor 13 as a gas supply device through a hose 14.
g / cm ² ).

 Next, the operation will be described.

First, a road heater is run to heat the pavement having collapsed to a predetermined temperature (for example, 80 ° C. to 100 ° C.) to heat and soften asphalt mortar constituting the pavement.

Thereafter, since the temperature drops after the heating by the road heater, the pavement is heated by the auxiliary heater 5 and is again heated to the predetermined temperature.

Then, the air box 9 is moved down by the second lifting hydraulic cylinder 11, and the lower end of the seal cover 10 is brought into contact with the surface of the pavement as shown in FIG.

Then, high-pressure air is supplied from the compressor 13 to the air box 9. At this time, since the porous member of the seal cover 10 is provided so as to cover the lower end opening of the air box 9, the high-pressure air is not directly sprayed on the pavement surface and the aggregate of the pavement is scattered. It is added to the pavement book surface while passing through the porous member while preventing it. Thereby, the second
As shown in the figure, the softened asphalt mortar that closes the water-permeable hole A near the pavement surface due to the collapse is pushed down by the high-pressure air to open the water-permeable hole A. Accordingly, the function of the pavement is restored, and good water permeability and sound absorption can be secured. At this time, since high-pressure air is used, it is possible to prevent deterioration of the quality of the roadbed and the like.

In addition, since the auxiliary heater 5 and the air box 9 are turned in a horizontal plane, the construction width can be changed and repair can be performed well on a curved road.

The layer that is crushed is a layer 10 to 20 mm from the surface of the pavement.

<Effects of the Invention> As described above, the present invention applies the high-pressure gas to the heated pavement to re-form the voids of the pavement, so that the pavement can be formed without deteriorating the quality of the pavement. Since the function of the body can be recovered, the water permeability and sound absorption can be favorably maintained.

[Brief description of the drawings]

FIG. 1 is a structural view showing an embodiment of the present invention, and FIG. 2 is a sectional view of a main part of the embodiment. 1 vehicle body, 5 auxiliary heater, 9 air box, 10 seal cover, 13 air compressor

Claims (1)

(57) [Scope of request for utility model registration] 1. A box-shaped body for repairing a water-permeable pavement formed with a predetermined gap and having a lower end portion opening toward a surface of a heated pavement; A sealing member attached to a lower end of the box-shaped body and hermetically sealing a gap between the lower end of the box-shaped body and the surface of the pavement; a gas supply device for supplying high-pressure gas to the box-shaped body;
A pavement repairing device, comprising: a vehicle.