JPH08165622A - Pavement plugging material eliminating method and its device - Google Patents

Abstract

PURPOSE: To improve plugging material eliminating capacity by jetting pressure water to the pavement surface from two directions, and crossing the respective extension line in the jet direction of pressure water, below the pavement surface. CONSTITUTION: An eliminator is connected to the rear part of a vehicle, and while traction-proceeding a road with draining pavement (a), high pressure water is conveyed to conduit pipes 8, 9 and a connecting pipe 8b through a high pressure water hose 9c, a branch box 13 and conduit pipes 9a, 9b. High pressure water is then jetted to the pavement surface (h) from jet nozzles 11, 12, 12b so that the respective extended lines X1 , X2 in the jet direction intersect below the pavement surface (h), and plugging material in the cavities of the draining pavement (a) is pushed up to the pavement surface (h) by the pressure of high pressure water and eliminated. The mixture of the plugging material and water is sucked from the suction port 16 of a duct 15 and recovered into a receiver tank through a suction hose 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a device for removing clogging materials such as dirt and dust which are clogged in the voids of pavements, especially the voids of drainage pavements.

[0002]

2. Description of the Related Art First, the drainage pavement will be described with reference to FIG. 7. The drainage pavement a is a roadbed b, a base course c, a base layer d, and a surface layer f having water-permeable voids e. A pavement formed by sequentially laying it. When rainwater flows into the void e of the surface layer f and guides it to a gutter (not shown) for drainage, it causes a factor that impedes running safety such as a smoking phenomenon or a hydroplaning phenomenon. Has a function to reduce.
Further, since the void e of the surface layer f has a sound absorbing ability, it also has a function of reducing tire noise when the vehicle is running.
The base layer d of the drainage pavement is not water-permeable to protect the roadbed c.

In such a drainage pavement a, however, the voids e of the surface layer f are clogged with earth and sand or dust due to the influence of vehicle traveling, wind, etc., and the above-mentioned excellent functions are degraded in a relatively short period of time. There is an inconvenience. Therefore, as a device to recover the various excellent functions of drainage pavement,
The one described in US Pat. No. 4,845,801 is disclosed.

As shown in FIG. 8, this device is provided with a plurality of nozzles g arranged along the width direction of the road, and the nozzles g are oblique to the surface h of the drainage pavement a. High-pressure water is jetted, and the jet pressure causes voids e in the surface layer f.
Clogs such as dirt and sand that are clogged in the surface are lifted up on the pavement surface h to be removed.

[0005]

However, in such a device, since the high-pressure water is sprayed onto the pavement surface h only from one direction, the sprayed high-pressure water covers most of the clogging material as the base layer. It is pushed toward d or the pressure of the high-pressure water diffuses to the surroundings inside the surface layer f. For this reason, the pressure of the high-pressure water cannot be effectively applied to the clogged material in the void e, and the clogged material in the void e cannot be sufficiently removed.

The present invention has been made in order to eliminate such inconvenience, and when the pressure water is jetted onto the pavement surface,
To provide a method and an apparatus for removing a clogged object of a pavement, by which the pressure of pressure water is effectively applied to the clogged object of a pavement to improve the removal ability of the clogged object. With the goal.

[0007]

In order to achieve such an object, a method for removing clogging of a pavement according to claim 1 is
In a method of ejecting pressured water to the pavement surface and removing the clogging material clogged in the voids of the pavement by this injection pressure by floating it on the pavement surface, injecting pressured water to the pavement surface from two directions, and from both directions It is characterized in that each extension line of the jet direction of the pressure water jetted onto the pavement surface is made to intersect below the pavement surface.

The method for removing clogging of a pavement according to a second aspect is characterized in that the mixed water of the clogging and the water floating on the pavement surface is suctioned and collected above the intersection of the extension lines. And The device for removing clogging of a pavement according to claim 3 is provided with an injection means for injecting pressure water onto the surface of the pavement, and the clogging matter clogged in the void of the pavement is injected by the injection pressure of the pressure water by the injection means. In the apparatus which lifts up and removes on the surface, the said injection means has a 1st injection nozzle arrange | positioned toward the said pavement surface from one direction, and a 2nd arrange | positioned toward the said pavement surface from another direction.
And the respective extension lines of the directing directions of the first and second injection nozzles intersect below the pavement surface.

According to a fourth aspect of the present invention, there is provided a pavement clogging removal device in which a pressure water jetted from the first jet nozzle collides with the pavement surface and a jet from the second jet nozzle. The suction duct is arranged so that the suction port faces the position where the pressurized water collides with the pavement surface. In the device for removing clogging of pavement according to claim 5, a partition plate that partitions the suction port into the first injection nozzle side and the second injection nozzle side is provided so as to project downward from the suction port. It is characterized by that.

[0010]

According to the present invention, the pressure water is jetted onto the pavement surface from two directions, and the respective extension lines of the jetting direction of the pressure water jetted onto the pavement surface from both directions intersect below the pavement surface. Therefore, the pressure acting on the clogging of the pavement void by the pressure water injected from one direction loses the escape area due to the pressure water injected from the other direction, and as a result, the pressure injected from both directions. The water pressure acts to push the clogs up the pavement surface. As a result, the clogging material that was difficult to remove by jetting from only one direction is removed by jetting from the other direction.

According to the invention described in claim 2 or 4,
Alternatively, in addition to the invention of 3, the mixed water of the clogging material floating on the pavement surface and water is suctioned and collected above the intersection of the extension lines, whereby the mixed water is collected quickly and efficiently. According to the invention of claim 5, in addition to the invention of claim 4, a partition plate for partitioning the suction port of the suction duct into the first injection nozzle side and the second injection nozzle side projects downward from the suction port. By providing it in this way, it is possible to prevent the clogging material floating on the pavement surface from scattering around the mixed water.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic side view of a state where a device for removing clogging of drainage pavement according to an embodiment of the present invention is attached to a rear portion of a transportation truck, and FIG. 2 is a perspective view in which a part of the removing device is cut away. 3, FIG. 3 is a sectional view taken along the line − in FIG. 2, FIG. 4 is a partial detailed view of FIG. 3, FIG. 5 is an explanatory view for explaining the removing device, and FIG. 6 is a schematic for explaining the operation of the removing device. It is a figure. In this embodiment, drainage pavement is taken as an example. Further, since the structure of the drainage pavement is the same as that described in the conventional example, the same reference numerals as those in the conventional example will be given and described.

First, the structure will be described with reference to FIGS. 1 to 5. The removing device is attached to a rear portion of a carrying truck 1 via a movable arm 2 which is a combination of a parallel link mechanism and a cylinder device. The outer box 3 is provided. Outer box 3
Has a rectangular parallelepiped shape that is long in the width direction of the track 1, and has a lower portion opened. As shown in FIG. 2, the upper plate 4 of the outer box 3 is disposed slightly below the upper end of the outer box 3 and is screwed to both side plates 5 and 6 of the outer box 3. As a result, the recess 7 is formed in the upper portion of the outer box 3.

In the recess 7, water pipes 8 and 9 extending along the width direction of the track 1 are arranged apart from each other in the front-back direction of the track 1. The water pipes 8 and 9 are fixed to the upper plate 4 by a plurality of U bolts 10. Also,
Both ends of the water pipes 8 and 9 are connected by connecting pipes 8a and 8b to form a rectangular frame shape. In FIG. 2, only the connecting pipe 8a on one end side is shown and the connecting pipe 8b is not shown. As shown in FIG. 2 and FIG. 3, a plurality of injection nozzles 11 (first
Injection nozzles) are provided at equal intervals along the axial direction of the water pipe 8. On the other hand, a plurality of jet nozzles 12 (second jet nozzles) for jetting high-pressure water are provided on the lower side of the water pipe 9 so as to face the jet nozzle 11 at equal intervals along the axial direction of the water pipe 9. Has been. Further, water jets 8a and 8b are also provided with jet nozzles 12a and 12b for jetting high-pressure water, respectively.

Injection nozzles 11, 12, 12a, 12b
Are arranged so as to penetrate through the upper plate 4 and project downward from the upper plate 4, and are directed to the surface h of the drainage pavement a. Injection nozzle 1
As shown in FIG. 3, the extension lines X ₁ and X ₂ of the directivity directions of 1 and 12 intersect below the pavement surface h. Here, in the present embodiment, the angle between the vertical line G passing through the intersection point P of the extension lines X ₁ and X ₂ and the extension line X ₁ is θ ₁ ,
When the angle between the vertical line G and the extension line X ₂ is θ ₂ , θ ₁ = θ ₂ ≈30 ° to 75 °, and the intersection P between the extension line X ₁ and the pavement surface h. ₁ (the collision position of the high-pressure water jetted from the jet nozzle 11 to the pavement surface h) and the intersection point P _{2 of} the extension line X ₂ and the pavement surface h (to the pavement surface h of the high-pressure water jetted from the jet nozzle 12) The distance W from the collision position) is set to about 50 mm, but the distance W is not necessarily limited to these values, and the respective numerical values (values of θ ₁ , θ ₂ , W) can be appropriately adjusted.

As shown in FIG. 2, the lower ends of the water pipes 9a and 9b are connected to the central portions of the water pipes 8 and 9, respectively. The water flow pipes 9 a and 9 b extend upward and then approach each other inwardly, and the other ends thereof join together via a branch box 13. One end of a high-pressure water hose 9c is connected to the upper surface of the branch box 13, and the other end of the high-pressure water hose 9c is connected to a high-pressure water pump 14 described later (see FIG. 1).

Between the lower intersections P ₁ and P ₂ of the upper plate 4, _two substantially fan-shaped suction ducts 15 are arranged along the longitudinal direction of the outer box 3 and spread downward. The suction duct 15 sucks and collects clogging materials such as earth and sand and dust floating on the pavement surface h together with water sprayed on the pavement surface h. In the present embodiment, the suction port 1 of the suction duct 15
6 from the pavement surface h between the intersection points P ₁ and P ₂
Although it is opened at a position 20 mm above along the longitudinal direction of the outer box 3, the invention is not necessarily limited to this.

As shown in FIG. 4, a partition plate 19 for partitioning the suction port 16 into the intersection P ₁ side and the intersection P ₂ side is fixed to the suction port 16 with a bracket 20 by screws. The partition plate 19 is formed of, for example, a rubber plate material or the like, and its tip end is protruded downward from the suction port 16 by an appropriate length to face the pavement surface h. As shown in FIGS. 1 and 3, one end of a suction hose 17 is connected to the upper portion of each suction duct 15, and the other end of the suction hose 17 is connected to a receiver tank 18 described later. . As shown in FIGS. 2 and 3, casters 21 and 22 are attached to both side plates 5 and 6 of the outer case 3 in the longitudinal direction of the outer case 3 so as to be separated from each other. A seal rubber 23 for sealing the lower portion of the outer casing 3 is attached to the lower portion of the outer casing 3 along the entire circumference of the outer casing 3 in a state of protruding downward from the lower portion of the outer casing 3. There is. The ground surfaces of the casters 21 and 22 and the lower end of the seal rubber 23 are at substantially the same level.

As shown in FIG. 5, the carrier 1a of the transport truck 1 has a receiver tank 1 from the rear to the front.
8, the water tank 24 and the engine 25 are sequentially arranged in parallel. On top of the receiver tank 18, a vacuum pump 26
Also, a vacuum pump hydraulic motor 27 for driving the vacuum pump 26 is attached. Moreover, the other end of the suction hose 17 described above is connected to the receiver tank 18.

A regeneration water pump 28 and a high-pressure water pump 14 are attached to both sides of the lower portion of the water tank 24.
A regenerative water pump hydraulic motor 30 for driving the pump 28 is attached to the reclaimed water pump 28, and a filter 28 a is interposed between the pump 28 and the receiver tank 18. A high-pressure water pump hydraulic motor 31 for driving the high-pressure water pump 14 is attached to the high-pressure water pump 14, and the high-pressure water pump 14 is connected to the other end of the high-pressure water hose 9c described above. Water is supplied to the water tank 24 from a water truck 32 through a water supply pipe 33.

A vacuum pump hydraulic pump 34 for supplying hydraulic oil to the vacuum pump hydraulic motor 27 by power transmission from the engine 25, and the engine 2
A hydraulic pump for water pump 30 and a hydraulic pump for water pump 35, which supply hydraulic oil to the hydraulic motor 30 for reclaimed water pump and the hydraulic motor 31 for high-pressure water pump, respectively, are attached by power transmission from 5. A hydraulic control valve 36 that controls the supply of hydraulic oil is interposed between the water pump hydraulic pump 35 and the reclaimed water pump hydraulic motor 30 and the high-pressure water pump hydraulic motor 31.

Next, the operation of the removing device will be described.
As shown in FIG. 1, when the engine 25 is driven while the removal device is connected to the rear part of the transportation truck 1 and the road of the drainage pavement a is being towed, the power of the engine 25 is the hydraulic pump 35 for the water pump, The high pressure water pump 14 is transmitted to the high pressure water pump 14 via the high pressure water pump hydraulic motor 31.
Uses the water in the water tank 24 for the high pressure water hose 9c and the branch box 13
Water is also supplied to the water pipes 8 and 9 and the connecting pipes 8a and 8b through the water pipes 9a and 9b. Thereby, the injection nozzle 1
High-pressure water (in this embodiment, the injection pressure is set to 50 to 60 kg / cm ² ) is injected from 1, 12, 12 a, 12 b toward the pavement surface h.

At this time, the respective extension lines X ₁ and X _{2 in} the directing directions of the injection nozzles 11 and 12 are made to intersect below the pavement surface h, and the base layer d of the drainage pavement a is not intersected. Since it is water-permeable, the pressure acting on the clogging of the void e of the drainage pavement a by the high-pressure water jetted from the jet nozzle 11 (or the jet nozzle 12) is the jet nozzle 12 (or the jet nozzle 11). The pressure of the high-pressure water injected from the above causes the escape areas other than above to be lost, and as a result, the pressure of the high-pressure water injected from each of the injection nozzles 11 and 12 acts to push up the clogging material to the pavement surface h (FIG. 6). reference). As a result, the clogging material such as earth and sand or dust that is clogged in the void e of the drainage pavement a floats on the pavement surface h together with water and is removed from the void e.

Further, since the injection nozzles 12a, 12b provided on the connecting pipes 8a, 8b inject high-pressure water toward the pavement surface h from both sides of the drainage pavement a in the width direction of the road, they float on the pavement surface h. It plays the role of preventing the mixed water of the clogging material and water from flowing out toward both sides in the width direction of the road. Then, the mixed water of the clogging material and the water that has floated up from the void e to the pavement surface h is the suction port 1 of the suction duct 15.
It is sucked from 6 and collected in the receiver tank 18 via the suction hose 17. The power of the engine 25 is applied to the suction port 16 by applying the suction force to the vacuum pump hydraulic pump 34.
From the vacuum pump 2 via the vacuum pump hydraulic motor 27
6 by driving the vacuum pump 26. Then, suction is performed between the collision position P _{1 of} the high-pressure water sprayed from the spray nozzle 11 on the pavement surface h and the collision position P ₂ of the high-pressure water sprayed from the spray nozzle 12 on the pavement surface h. By allowing the suction port 16 of the duct 15 to face, the mixed water of the clogging material floating on the pavement surface h and water can be sucked and collected quickly and efficiently.

Further, when the clogging matter is sucked from the suction port 16 together with water, the clogging matter may be scattered around by the jetting pressure of the high-pressure water jetted from the jetting nozzles 11 and 12 onto the pavement surface h. However, in this embodiment, since the partition plate 19 provided at the suction port 16 prevents the scattering, the mixed water of the clogging material and the water floating on the pavement surface h can be more effectively received by the receiver tank 18. Can be collected by suction.

The mixed water of the clogging material and water sucked and collected in the receiver tank 18 is filtered from the receiver tank 18 through the filter 28a by the drive of the reclaimed water pump 28, and then supplied to the water tank 24 to be reused. Used. The regeneration water pump 28 is driven by the power of the engine 25 being transmitted from the water pump hydraulic pump 35 via the regeneration water pump hydraulic motor 30.
The regenerator pump 28 is driven by the receiver tank 1
8 or a hydraulic control valve 36 according to a detection value of a water level sensor (not shown) provided in the water tank 24.

In the above embodiment, the case where the removing apparatus of the present invention is applied to drainage pavement is taken as an example, but the present invention is not limited to this, and the apparatus of the present invention is also applied to water-permeable pavement. Good.

[0028]

As is apparent from the above description, according to the invention of claim 1 or 3, the pressure of the pressure water injected from both directions pushes up the clogging material in the voids to the pavement surface. The effect that the pressure can be effectively applied to the clogging matter and the ability to remove the clogging matter can be improved is obtained.

According to the invention described in claim 2 or 4,
In addition to the invention of 3 or 3, by suctioning and collecting the mixed water of the clogging material floating on the pavement surface and the water, the effect of further improving the clogging matter removing ability can be obtained. According to the invention of claim 5, in addition to the invention of claim 4, the partition plate is provided so as to project downward from the suction port, so that the clogging material floated on the pavement surface and the water around the mixed water. Since it is possible to prevent the scattering of water, it is possible to obtain the effect that the mixed water of the clogging material and water can be sucked and collected more effectively.

[Brief description of drawings]

FIG. 1 is a schematic side view of a state where a device for removing clogging of drainage pavement according to an embodiment of the present invention is attached to a rear portion of a vehicle.

FIG. 2 is a perspective view in which a part of the removing device is cut away.

FIG. 3 is a sectional view taken along line − in FIG. 2;

FIG. 4 is a partial detailed view of FIG.

FIG. 5 is an explanatory diagram for explaining the removing device.

FIG. 6 is a schematic view for explaining the operation of the removing device.

FIG. 7 is a schematic cross-sectional view for explaining drainage pavement.

FIG. 8 is a schematic view for explaining a conventional removing device.

[Explanation of symbols]

a ... Drainage pavement h ... Pavement surface e ... Void X ₁ , X ₂ ... Extension line 11 ... First injection nozzle 12 ... Second injection nozzle 15 ... Suction duct 16 ... Suction port 19 ... Partition plate

Claims (5)

[Claims] 1. A method of ejecting pressured water onto a pavement surface, and removing the clogging material clogged in the pavement voids by the jetting pressure so as to float on the pavement surface and remove the pressured water from two directions. A method for removing clogging of a pavement is characterized in that extension lines of a direction of injection of pressure water jetted from both directions to the pavement surface are made to intersect below the pavement surface. 2. The clogging material of the pavement according to claim 1, wherein the mixed water of the clogging material floating on the pavement surface and water is suctioned and collected above the intersection of the extension lines. Removal method. 3. An apparatus comprising: a spraying means for spraying pressured water onto the pavement surface, and removing the clogging material clogged in the voids of the pavement by the spraying pressure of the pressured water by the spraying means. The jetting means includes a first jet nozzle arranged to face the pavement surface from one direction and a second jet nozzle arranged to face the pavement surface from another direction.
The spraying nozzle according to claim 1, wherein the extension lines of the first and second spraying nozzles in the directing direction intersect below the surface of the pavement. 4. A position where the pressure water sprayed from the first spray nozzle collides with the pavement surface and a position where the pressure water sprayed from the second spray nozzle collides with the pavement surface. The device for removing clogging of a pavement according to claim 3, further comprising a suction duct disposed so as to face the suction port. 5. A partition plate for partitioning the suction port into the first jet nozzle side and the second jet nozzle side is provided so as to project downward from the suction port.
A device for removing clogging of pavement as described.