JP2006022574A - Road repairing method and temporary material for road - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly perform pavement repair work while minimizing inconvenience to roadside residents without giving shock or doing damage to vehicles passing through a construction place by making height adjustment of the road surface at any time when the occasion demands on a stepped part formed by pavement cutting work. <P>SOLUTION: A temporary material for a road comprises a foam resin plate 1 of rectangular cross section and a plate body 2 with non-slip applied at least to the lower face. The foam resin plate is installed at the stepped part formed by cutting the pavement, to adjust the height, and the plate body 2 is placed thereon to prevent vehicle load from being directly applied to foam resin. The lower face of the plate body 2 is formed with non-slip to prevent movement caused by driving force transmitted from a vehicle during use. In the case of using the temporary material to eliminate level difference of a part which pedestrians pass, the surface side is also formed with non-slip in the same way so that the pedestrians do not slip and fall. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for repairing a paved road and a temporary material used in the method.

  For repairing paved roads, existing damaged pavements are peeled and removed, and paving is performed again, or pavement is cut to a certain depth and then paved again. As a result, the depth of about 20 to 30 cm can be cut efficiently, and repair work can be performed efficiently in a short time.

On the other hand, when constructing a temporary road on soft ground, there is a light weight embankment method in which foamed resin blocks are stacked and connected to each other as a temporary road, and then embanked on the foundation. This construction method has an advantage that a temporary road can be constructed without improving the ground even in a soft ground because the foamed resin is lightweight and has good workability and the foamed resin disperses the embankment load.
The construction method using a foamed resin block does not require a large machine for construction of a temporary road and has little influence on the surrounding environment. However, the foamed resin often cannot be reused because it is lost once used. As shown in FIG. 2, it has been proposed that a reinforcing material is provided in the ridge line portion (see FIG. 4) or that the foamed resin block is wrapped with a net so that it can be used repeatedly. (See Figure 3)
JP-A-8-4012 Japanese Utility Model Publication No. 6-280210 Japanese Patent No. 3152697 Japanese Patent No. 3476571

  When repairing a paved road by repairing the pavement by cutting the pavement at a depth of about 20 to 30 cm, the repair work is performed with a part of the road width, for example, stopping the traffic on one lane and cutting, and the remaining lanes are traffic It is open to avoid inconvenience for the user, but there are vehicles entering the repair location from the road that intersects with the road where repair work is being performed, or on the road where repair work is being carried out There may be vehicles that enter or exit a facing house or building, or you may have to cross the cut lane.

However, when passing through a step generated by cutting, there is a risk of rubbing the bottom of the vehicle or damaging devices installed on the bottom of the automobile such as a diff lock or a muffler. Arranging guides over the entire length of the repair location is costly, such as a vehicle that has entered without its guidance in time, rubbing the bottom, or getting stuck in a step and becoming unable to move There were many inconveniences.
The present invention makes it possible to adjust the height of the road surface with temporary materials as needed as needed due to the level difference caused by the cutting work. It is intended to make repair work smoothly.

  Prepare a temporary material with a lightweight foamed resin as the base material and a removable plate that will be the vehicle's running surface in the cut pavement, and install the temporary material in the cut part every time a passing vehicle appears. Thus, the step is eliminated and the impact due to the step on the passing vehicle is not applied.

  Because it is made of a foamed resin that is lightweight and fits the unevenness of the cut surface of the pavement, it is easy to install without causing rattling, and after the vehicle passes through the steps, it is immediately removed and repaired. It can continue. Temporary materials can be easily installed on the stepped part even if it is a guide for less powerful traffic control, and it does not bother repair workers, minimizing the impact on pavement repair work In addition, since no special personnel are required, the increase in costs can be suppressed and the adverse effects of repair work on the residents along the road can be suppressed.

Example 1
As shown in FIG. 1, the temporary material of the present invention includes a foamed resin plate 1 and a plate body 2 having a rectangular cross section.
The asphalt pavement was cut into a depth of 20 cm and a width of 2 m using a room temperature cutting machine to form a cut surface 51. Although the cutting surface 51 has fine unevenness, it may be said that it is almost flat, but a 20 cm step 55 is formed between the cutting surface 51 and the uncut portion, and the approaching vehicle from the crossing road must pass the step 55. Met.

In order to eliminate this level difference 55, every time a passing vehicle appears, two foamed polystyrene foam resin plates 1 each having a thickness of 10 cm are placed on top of each other so that the vehicle load does not act directly on the foamed resin plate 1. When the plate 2 made of a composite panel having a thickness of 3 cm was placed on the vehicle and passed through the vehicle, the vehicle could pass safely without rubbing the bottom of the vehicle.
Immediately after the vehicle passed, the composite panel 2 and the foamed resin plate 1 were removed and loaded in the vicinity to prepare for the next passing vehicle.
A slip stopper (not shown) is formed on the lower surface of the plate body 2 so as not to move and shift due to the driving force transmitted from the vehicle during use.

The non-slip is formed by applying a thin epoxy adhesive on the surface of the plate body 2 and spreading particles such as sand over the entire surface to make the surface rough.
When this temporary material is installed at a pedestrian crossing portion, a slip stopper is also formed on the surface side of the plate 2 in order to prevent a pedestrian from slipping during rainy weather. When used by pedestrians, make the particles of non-slip particles as fine as possible.

  Further, assuming that a wheelchair or a bag with casters passes, as shown in FIG. 2, the foamed resin plate 1 is cut obliquely to form an oblique path 15, and a hard plate 21 having a thickness of about 2 mm is formed on the surface. A plurality of bonded temporary ramp materials are prepared, and installed between the temporary material and the sidewalk as necessary so that the transition to the temporary material can be made smoothly.

The foamed resin is foamed polystyrene, foamed polyurethane, foamed polyvinyl chloride, foamed polyolefin or the like, and those having a foaming rate not so high are preferable because corners and ridge lines are not lost. If a tape is applied to the ridgeline to reinforce, the ridgeline can be prevented from being lost.
As for the size of the temporary material, a size of about 200 ra 100 ra 10 (cm) is easy to handle because it does not take up much space.

According to the road repair method of the present invention, the temporary material is lightweight, and the temporary material is manually installed only when the vehicle passes through the step of the cutting portion, and the step is eliminated to damage or impact the vehicle. Since it can be removed immediately by human power after passing and pavement repair work can be resumed, there is no need to prepare machinery such as cranes, and there is no inconvenience due to pavement repair work for surrounding residents and passing vehicles, In addition, there will be no delay in repair work.
Since the temporary material of the present invention is formed of foamed resin, it deforms and fits according to the unevenness of the cut surface of the pavement, so that it can be rattled when the vehicle passes like conventional temporary material of concrete or iron plate. In addition, it is environmentally friendly because no noise is scattered around it.

The perspective view of the state which installed the temporary material on the cutting road surface, and eliminated the level | step difference. Sectional drawing of the temporary material at the time of using the auxiliary material which formed the slope. The perspective view of the foamed resin body wrapped with the conventional net | network. The perspective view of the foaming resin body reinforced with the conventional frame material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foam resin board 15 Rampway 2 Plate body 50 Pavement 51 Cutting surface 55 Level difference

Claims (3)

A road repair method in which a foamed resin plate is installed at the level difference between the non-cut pavement by cutting the paved road surface with a certain width, and the road is temporarily opened by installing a plate material on the foamed resin plate. . 2. The road repair method according to claim 1, wherein at least a lower surface of a plate material installed on the foamed resin plate is provided with a slip stopper. A temporary road material comprising a foamed resin plate and a plate having at least a lower surface provided with anti-slip.

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