JPH0791806B2 - Road pavement finisher and road pavement method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road pavement finisher and a road pavement method used for road maintenance and repair work.

[0002]

2. Description of the Related Art In recent road conditions, various damages such as ruts, depressions and cracks frequently occur on the road surface due to a dramatic increase in traffic volume and an increase in heavy vehicles for civil engineering and construction. , Has significantly reduced the pavement life of roads. In the maintenance and repair work of roads under such circumstances, in many cases, for damage such as cracks and ruts, a method of coating the heated asphalt mixture after cutting the pavement surface for about 4 to 10 cm, or an existing damaged part The method of coating the hot asphalt mixture so as to raise the pavement surface is used. In addition, the geotextile (including geogrid) construction method and the construction method of laying reinforcing materials such as sheets and mats under the asphalt layer of the surface layer in order to strengthen the structure and increase the roadbed support capacity and the asphalt pavement structure. The pavement life is extended by reinforcement. And, for the reinforcing materials such as sheets and mats used for these constructions, metallic fibers, chemical fibers,
A woven or mesh material made of glass fiber or the like and coated with an asphalt material is used. The coating process is performed so that it can be easily handled during manual laying work. And, at the time of construction, reinforcing materials such as these sheets and mats are laid under the heated asphalt mixture or between each asphalt layer, but the work of cutting these reinforcing materials to a predetermined size on site. , A series of work such as work to lay it on the road continuously, work to fix it with fixing pins etc. so that displacement and deformation will not occur when a dump truck or a finisher for road paving runs on it, Moreover, since most of these operations are performed manually by human power, problems such as complexity of operations, lengthening of working time, and increase in working cost have been pointed out, and some improvement is desired. It was

[0003]

In view of the above circumstances, a first object of the present invention is to mechanize road paving work,
It is an object of the present invention to provide a finisher for road paving, which is automated and labor-saving. A second object of the present invention is to provide a road pavement method with good work efficiency.

[0004]

DISCLOSURE OF THE INVENTION It is an object of the present invention to provide a road pavement finisher used for road pavement construction, comprising:
The pavement material storage means, the pavement material conveying means, the pavement material pavement means, and the belt-shaped body laying means are provided, and the belt-shaped body is laid by the belt- shaped body laying means while the belt-shaped body is laid.
From the pavement material storage means to the pavement material conveying means on the strip.
The paving material conveyed by
This is achieved by a road paving finisher characterized by being configured to be paved at times .

The band laying means is wound into a roll.
It is constructed so that it can be unrolled and laid from a rolled strip.
Preferably. Further, the band laying means,
Depending on the width of the pavement
Preferably. And in the past,
Cutting, fixing, and laying of reinforcing materials such as sheets and mats in the field
Although I had no choice but to perform a series of work such as setting by hand
On the other hand, using the road paving finisher with the above configuration,
If you are going to do the repair work, add a strip to the finisher for road paving.
Since laying means is provided, automation and labor saving are achieved.
Therefore, the work speed can be increased, that is, the construction period can be shortened.
It Furthermore, the band-shaped body was laid by the band-shaped body laying means.
Pavement material is designed to be paved from above with pavement material paving means.
Since it was made, we need a means to press-fit the strip
The construction of the road paving finisher is simple.
And cost is reduced, and workability is improved.
To do. As a result, various types of conventional manual work
Problems (complexity of work, securing manpower, prevention of occupational accidents)
Measures, traffic control time due to road occupancy
Strikes) can be solved all at once.

[0006] Another object of the present invention is to provide a road pavement method performed by using the finisher for road paving, a strip in strip laying means provided in the road pavement finisher
While unrolling and laying on the laid band,
From the finisher for road pavement to cover them
Is achieved and is simultaneously paved .

That is, immediately after that, while laying the strip- shaped body fed by the strip-laying means of the finisher for road paving,
The pavement material to cover the laid strip from above.
Since the pavement (simultaneous pavement) is continuously performed , the workability is improved without the step of press-fitting the laid belt-like body. Further, the dump truck and the finisher for road paving do not run on the strip to cause problems such as displacement and deformation of the strip, and the work efficiency is significantly improved. It should be noted that the road surface is appropriately pretreated before the strip is laid. This pretreatment means that, for example, when repairing damage to the existing asphalt pavement such as cracks and ruts, a tack coat made of asphalt emulsion is spread on the base layer (coarse-grained ascon) of the asphalt pavement. . Other,
Depending on the content of the pavement work, other pretreatments will be performed.

[0008]

1 and 2 show an embodiment of a road paving finisher according to the present invention. FIG. 1 is an overall side view showing a road paving work using the road paving finisher, and FIG. 2 is a road. It is explanatory drawing of the arrangement | positioning state of the roll type mesh with which the finisher for pavements is equipped.

In the figure, A is a road paving finisher used for maintenance and repair work of the road surface. Reference numeral 1 denotes a hopper provided at the front part of the vehicle body A ₁ of the road paving finisher A. This hopper 1 enables dumping of the asphalt paving material P while dumping from a dump truck T loaded with the asphalt paving material P. Is configured.

The asphalt pavement material P is loaded on the hopper 1 at the same time as the paving work using the road paving finisher A. That is, the push roller 1a provided at the front end of the hopper 1 is provided at a predetermined position on the rear portion of the dump truck T in which the forward movement is free (the traveling gear is kept in the neutral state) while maintaining the dumped state.
And the road paving finisher A during the paving work is moving forward while pushing the dump truck T from the rear.

[0011] 2 is a bar feeder caterpillar for transporting the asphalt paving material P loaded on the hopper 1 of the vehicle body A ₁ backward (crawler), a vehicle body A ₁ from the bottom of the hopper 1 It is extended with a substantially gentle inclination (inclination angle of about 20 °) to a position immediately before the screw spreader (the rear end of the vehicle body A ₁ ) which will be described later. still,
The asphalt pavement material P mounting surface of the bar feeder 2 is formed with protrusions so as to prevent rolling and slipping. The amount of asphalt paving material P conveyed is adjusted by the opening / closing amount of the hopper gate 2a provided on the bar feeder 2 at the boundary between the hopper 1 and the vehicle body A _{1 in the} middle of the bar feeder 2. .

Numeral 3 is a roll-type mesh which is wound so as to be able to be drawn out, and three meshes are alternately mounted on the lower surface of the vehicle body A ₁ by means of suspension supports 3a. By arranging the three roll-type meshes 3 in a staggered manner, the adjacent end surfaces E of the laid mesh 3 can be laid so as to be slightly overlapped.

Reference numeral 4 denotes a screw spreader provided at the rear portion of the vehicle body A ₁ , which conveys the asphalt pavement material P fed by the bar feeder 2 to the screw spreader 4 while rotating the screw to a predetermined pavement width. It is spread over the road surface R while expanding. Reference numeral 5 denotes a partition plate arranged at the rear end of the vehicle body A ₁ , which is efficiently installed in the screw spreader 4 so that the asphalt pavement material P falling from the rear end of the vehicle body A ₁ is not scattered on the side of the roll-type mesh 3. It is arranged so as to be supplied.

Reference numeral 5a is a roller which is attached to the partition plate 5 and guides the unwound strip-shaped mesh 3 so as to crawl on the road surface R. 5b is a partition plate 5 like the roller 5a.
Is a cutter for cutting the roll-type mesh 3 as required. 6, a base end of the vehicle body A ₁ is pivotally supported by pivots 6a on the left and right sides of the vehicle body A _1.
1 It is a leveling arm that extends rearward,
On the rear end side of the leveling arm 6, a double tamper 7 having a high tamping efficiency corresponding to the width of the road surface R and a screed 8 of a type in which the leveling width can be arbitrarily set by a hydraulic cylinder.
Has been deployed. The pivot 6a is connected to a sensor that detects the tilt of the double tamper 7 and the screed 8 in the front-rear and left-right directions, and the left and right pivots 6a are controlled by the control signal detected by the sensor. Horizontal adjustment is performed. The double tamper 7 is used to tamper with the asphalt pavement material P expanded by the screw spreader 4 in the previous stage. Further, the screed 8 provided in the subsequent stage is for performing the rolling and leveling work of the asphalt pavement material P compacted in the previous stage. Also, 9 is a double tamper 7 and a screed 8
Is a handle-type thickness controller for adjusting the height and position of the road surface R.

Reference numeral 10 is a control device for controlling each device, 11 is a command panel arranged at a position where it can be easily confirmed by an operator and displaying an operating state of each device,
Reference numeral 12 is a safety light, 13 is various levers, and 14 is an engine section. When performing the road paving work using the road paving finisher A configured as described above, as a preliminary work, the road paving finisher A is arranged at a predetermined position on the road surface R, and the dump truck T and the hopper 1 are connected. A predetermined amount of asphalt pavement material P is stored inside by dumping the cargo bed. Then, the push roller 1a at the tip of the vehicle body A ₁ is brought into contact with the rear predetermined position of the dump truck T in which the gear is in neutral and the vehicle can travel freely while keeping the dump truck in a dumped state. While the dump truck T is pushed from behind by the road paving finisher A that is moving forward during paving work,
The asphalt pavement material P in the hopper 1 that decreases as the paving work progresses is always replenished. Furthermore, roll of the mesh 3 so as to be laid slightly to overlap alternately arranged loaded three-roll mesh 3 ... of Tonaria' end face E at the vehicle body A ₁ lower surface as shown in FIG. 2 Is carried out around the roller 5a and the tip thereof is pulled out to the rear road surface R from the screw spreader 4 and the like.

At the time of main paving work, various devices are started to move the bar feeder 2 at a predetermined speed.
The asphalt pavement material P in the hopper 1 to the vehicle body A ₁
Transport toward the rear end. At this time, the transport amount of the asphalt pavement material P is adjusted according to the pave width by the hopper gate 2a. Then, the asphalt pavement material P reaching the rear end of the vehicle body A ₁ drops from the rear end and is supplied to the screw spreader 4. Then, the finisher A for road paving is simultaneously advanced in parallel with the fine speed, and the mesh 3 is sequentially paid out from the roll type mesh 3. Next, the asphalt pavement material P expanded to a predetermined width by the action of the screw spreader 4 is laid on the mesh 3 whose tip is pulled out to the road surface R behind the screw spreader 4 by the preparatory work.
Next, the laid asphalt pavement material P is compacted by the double tamper 7, and then the rolling and leveling work of the asphalt pavement material P compacted by the screed 8 in the preceding stage work is performed. The paving work by the paving finisher A is completed.

The heights and positions of the double tamper 7 and the screed 8 with respect to the road surface R are adjusted by a handle type thickness controller 9 as needed before or during work. That is, in contrast to the conventional work in which a series of work such as cutting, fixing, and laying of a reinforcing material such as a sheet and a mat on the site had to be performed by inefficient manual work, the finisher for road paving of the present invention A has a specified size (length 20-300 m, width
Since a relatively long roll type mesh 3 such as 0.3 to 1.5 m and a diameter of 0.3 to 0.7 m) can be mounted,
The work for replenishing the mesh 3 does not need to be frequently interrupted, and moreover, it can be displaced by arranging it so that three meshes can be mounted side by side in a staggered manner and the adjacent end faces are slightly overlapped with each other. Without increasing the strength. Moreover, as described above, the automated and labor-saving laying work of the mesh 3 can be performed, and the work speed can be increased, that is, the construction period can be shortened. As a result, problems that have occurred during conventional manual work, such as securing manpower, complexity of work, measures to prevent occupational accidents, prolongation of traffic regulation time due to road occupation and general manual work It is possible to solve all the problems such as the cost increase.

The road paving finisher A described above can also be used for general paving work if the roll mesh 3 is not mounted, and since it is equipped with the double tamper 7, the RCCP (roller compac) is used.
section concrete movement)
It can be used for roller compaction concrete pavement work and has versatility.

As for the road paving method, the laying process of the mesh 3 carried out immediately before the paving process of the asphalt paving material is carried out, and the mesh 3 is fed out from the roll type mesh 3 attached to the road paving finisher A. Therefore, as in the conventional case, the dump truck T and the road paving finisher A are placed on the laid mesh 3 in the conventional manner.
Does not cause any troubles such as displacement or deformation of the mesh 3, and the working efficiency is greatly improved.

[0020]

【effect】 The finisher for road paving according to the present invention is used.
When performing pavement work, the
Cutting, fixing, and laying reinforcing materials such as sheets and mats
There is no need to perform a series of work manually, automation and labor saving
Achieved, speeding up the work, that is, shortening the construction period
Be done. Furthermore, the belt-shaped body is laid by the belt-shaped body laying means.
Pave the paving material from above with paving means paving means
Since it is configured, it is necessary to use means such as press fitting the strip.
Easy construction of road paving finisher
In addition, the cost is low and workability is improved.
Go up. As a result, conventional problems such as complicated work
Gender, securing manpower, preventing industrial accidents, occupying roads
Cost increase due to longer traffic regulation time, pavement
Problems such as certainty can be solved at once.

Further, it is wound from a band-shaped body wound in a roll shape.
When the band laying means is configured so that it can be put out and laid
Is a strip of material without interruption over a certain length
Since it can be supplied, work efficiency is greatly improved. Also, pavement
Band-shaped material laying means at alternate positions on the front, back, left and right depending on the width
If you have several, overlap the adjacent end faces a little.
The problem of misalignment
It does not occur and the strength is improved.

Further, the road paving method performed by using the finisher for road paving according to the present invention is the same as the conventional method.
Dump trucks and road paving finishes on a strip
When the washer runs and the belt is displaced or deformed,
It is said that it will not cause a bull and that the band will be pressed in.
It does not require special work and the workability is dramatically improved.
With the features of.

[Brief description of drawings]

FIG. 1 is an overall side view showing a road paving work using a road paving finisher according to the present invention.

FIG. 2 is an explanatory view of an arrangement state of a roll-type mesh mounted on a road paving finisher according to the present invention.

[Explanation of symbols]

A Road paving finisher A ₁ Vehicle body T Dump truck P Asphalt paving material R Road surface 1 Hopper 1a Push roller 2 Bar feeder 2a Hopper gate 3 Roll type mesh E (Overlapping mesh) End surface 3a Suspension support 4 Screw spreader 5 Partition Plate 5a Roller 5b Cutter 6 Leveling arm 6a Pivot 7 Double tamper 8 Screed 9 Handle type thickness controller 10 Control device 11 Command panel 12 Safety light 13 Various levers 14 Engine part

Claims (4)

[Claims] 1. A road pavement finisher used for road pavement construction, comprising: a traveling means, a pavement material storage means, a pavement material transporting means, a pavement material paving means, and a belt laying means. The belt is laid by the belt laying means.
While laying a strip, put the above-mentioned strip on the strip.
Transported from pavement storage means by pavement transporting means
A finisher for road pavement , wherein the pavement material is configured to be simultaneously paved by the paving material paving means . 2. The strip laying means is wound in a roll shape.
It is constructed so that it can be unwound from a strip and laid.
Road paving finisher of claim 1, characterized in that that. 3. The belt laying means is arranged in front and rear according to the pave width.
A plurality of finishers for road paving according to claim 1 or 2, wherein a plurality of the finishers are provided at left and right staggered positions . 4. A road pavement method performed by using a road pavement finisher , wherein the band-like body is unwound and laid by a belt-like body laying means provided in the road pavement finisher.
And cover it from the top of this laid strip.
A road pavement method, characterized in that a pavement material is supplied from a finisher for road pavement to perform simultaneous pavement .