JP2523411Y2 - 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.

<Prior Art> For example, on a road, in order to absorb noise during running of a vehicle or to 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, there is a problem that the pavement is softened and the pavement at the rutted portion is crushed during running of the vehicle, which significantly deteriorates water permeability and sound absorption.

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

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 large number of needle-like members which are attached to a plate-like support member so as to project substantially perpendicularly to the surface of a pavement, and a pavement heated and softened. The vehicle is provided with a pressing device for pressing the needle-shaped member toward the surface of the pavement body so that the needle-shaped member is bitten into the body by a predetermined amount.

<Operation> As described above, the needle-shaped member is made to bite into the heat-softened pavement, thereby forming a gap in the pavement to regenerate the pavement and restore the function of the pavement.

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

In the figure, a bracket 2 is attached to a rear portion of a tractor 1 as a vehicle, and a swing bracket 3 is attached to the bracket 2 so as to freely swing in a substantially horizontal plane. An elevating bracket 4 is attached to the lower part of the oscillating bracket 3 so as to be able to freely move up and down in the vertical direction. The elevating bracket 4 has an elevating hydraulic cylinder 5 attached to the oscillating bracket 3.
Is mounted.

A front end of the suspension frame 6 is attached to a rear end of the lifting bracket 4 so as to be freely rotatable in a substantially vertical plane, and one end of a wire 7 is attached to a rear end of the suspension frame 6. . The other end of the wire 7 is wound around a hydraulically driven winch 8 mounted on the swing bracket 3, and the suspension frame 6 is suspended and held by the wire 7 in a substantially horizontal state. Further, by winding the wire 7 with the winch 8 at the time of forwarding, the suspension frame 6 is rotated counterclockwise in FIG. 1 around the front end portion, and the suspension frame 6 stands substantially vertically. It has become. An auxiliary wheel 9 is attached to a rear end of the suspension frame 6.

A guide member 10 is attached to the suspension frame 6 so as to extend in the vehicle width direction, and a traverse frame 11 is attached to the guide member 10 so as to be movable in the vehicle width direction. A plate-like member 12 is attached to a lower portion of the traversing frame 11, and a plate-like vertical moving member 13 as a support member is attached to the plate-like member 12 so as to be vertically movable. A large number of needle-like members 14 are implanted in the vertical moving member 13 at substantially constant intervals, and these needle-like members 14 project a predetermined amount downward from the lower surface of the vertical moving member 13 so as to be substantially perpendicular to the pavement surface. It is arranged in. A spring (not shown) is attached to the base end of each needle-like member 14, and each needle-like member 14 is pressed downward by the elastic biasing force of the spring.

A vibration device 15 as a pressing device is attached to the upper part of the vertically moving member 13, and the vibration device 15
At the same time, the needle-shaped member 14 is vibrated in the vertical direction at a predetermined cycle to press the needle-shaped member 14 toward the pavement. A burner 16 for heating the needle-like member 14 together with the vertically moving member 13 is attached to the plate-like member 12, and fuel (for example, propane gas) is supplied from a fuel tank 17 to the burner 16.

A traverse hydraulic cylinder 18 is attached to the suspension frame 6, and a piston rod of the hydraulic cylinder 18 is attached to the traverse frame 11. And the hydraulic cylinder 18
By the operation described above, the plate-shaped member 12, the vertically moving member 13, and the plate-shaped member 14 can be moved together with the traversing frame 11 in the vehicle width direction as shown by a chain line in FIG.

Further, a swing hydraulic cylinder 19 is attached to the tractor 1, and a piston rod of the hydraulic cylinder 19 is attached to a corner of the swing bracket 3. Then, by swinging the swing bracket 3 by the swing hydraulic cylinder 19, the plate-like member 12, the vertically moving member 13 and the needle-like member 14 are pivoted right and left together with the suspension frame 6 as shown by a chain line in FIG. The construction can be done even on curves.

 Next, the operation will be described.

First, the road heater is run to heat the pavement that has been crushed to a predetermined temperature (for example, 100 ° C.) to soften the pavement by heating.

The suspension frame 6 is moved by the lifting hydraulic cylinder 5.
Is moved down to a predetermined position to bring the needle-like member 14 into contact with the surface of the pavement, and then the needle-like member 14 is vibrated in the vertical direction at a predetermined period together with the vertically moving member 13 by the vibration device 15. At this time,
Since a predetermined amount of the needle-shaped member 14 bites into the pavement, a predetermined gap is formed in the pavement.

Here, the needle-like member 14 spreads the asphalt mortar portion constituting the pavement to form a void. Further, when the needle-shaped member 14 comes into contact with the aggregate constituting the pavement, the needle-shaped member 14
Escapes upward against the elastic biasing force of the spring, so that only the asphalt mortar portion is expanded without disturbing the arrangement of the aggregates, and a gap is formed.

 Thereafter, the compaction roller is run to compact the pavement.

According to the experimental data obtained by such a repair method, the porosity (that is, the water permeability) after the construction can be close to the porosity (the water permeability) before the occurrence of the collapse. At this time, the bending strength of the pavement after the construction and the amount of wear of the pavement by the labeling test have substantially the same value as before the construction, and the quality of the pavement can be favorably maintained.

As described above, since the needle-like member 14 is vibrated to form voids in the pavement and reproduce the crushed pavement, the function of the pavement can be restored without deteriorating the quality of the pavement. Thus, good water permeability and sound absorption can be secured.

Further, since the needle-like member 14 is heated by the burner 16, a gap can be formed without asphalt mortar adhering to the needle-like member 14.

The layer that is crushed is a layer that is 10 to 20 mm from the surface of the pavement, and a gap is formed by the needle-like member 14, and the gap communicates with a gap below the layer.

<Effects of the invention> As described above, the present invention is configured such that a needle-shaped member is cut into a heated pavement to form a void, so that the function of the pavement without deteriorating the quality of the pavement is improved. Therefore, water permeability and sound absorption can be favorably maintained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a plan view of the same. 1 ... tractor, 6 ... hanging frame, 10 ... guide member, 11 ... traversing frame, 13 ... vertical moving member, 14 ...
Needle member, 15 …… Vibration device

Claims (1)

(57) [Scope of request for utility model registration] An object of the present invention is to repair a water-permeable pavement formed with a predetermined gap and to be mounted on a plate-like support member so as to project substantially perpendicularly to the surface of the pavement. A vehicle comprising: a needle-shaped member, and a pressing device for pressing the needle-shaped member toward the surface of the pavement body so as to cause the needle-shaped member to bite into the heated and softened pavement body by a predetermined amount. Equipment for repairing pavement.