JPH0657774A - Repair work of paved road provided with facilities - Google Patents

Abstract

PURPOSE:To calmly repair a paved road around facilities thereon in a short time with high quality. CONSTITUTION:After existing facilities on a road are removed, an opening of a concrete pipe CP buried in a basic bed BL is closed by a cover. Next, after the upper face of the cover is covered with a temporary recovery bed TL, an overlay bed OL is laid further thereon. The superficial bed is cut with the overlay bed. After the overlay bed, the temporary recovery bed, and the cover are all removed, the manhole MA is again installed and fixed by the repair bed. After the surface of temporary recovery bed is excavated by a specified thickness, an overlay bed is laid on the upper face thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing a paved road, in which an existing road installation is once removed from a paved road provided with a road installation such as a manhole and the installation is installed again. It is about.

[0002]

2. Description of the Related Art Conventionally, as a method for repairing road facilities such as manholes and intake valves and the paved road surface around them, which require repair, for example, an overlay method or a cutting replacement method is widely known. It's about to come.

Among the above construction methods, in the overlay construction method, the pavement around the road installation is cut with a required cutter or the like, and the pavement attached to the outer periphery of the road installation using a breaker or the like. After crushing and removing the cut pieces of the road, this road installation is removed, the height adjustment work is properly performed, the road installation is installed again, and the slippery recovery processing is performed on the outer periphery of the road installation, and finally overlay. Asphalt is laid as a layer.

Further, in the road cutting and replacement method, after cutting the surface of the paved road in advance, the paved road portion adhering to the outer periphery of the road installation is crushed and removed, and the road installation is temporarily removed. This road installation is to be removed after the outer circumference has been temporarily restored, and the subsequent steps are common to the above-mentioned overlay construction method, so a detailed description thereof will be omitted.

[0005]

However, in each of the above-mentioned conventional construction methods, there still remain some problems to be solved as described below.

(1) Danger of traffic. That is, in the overlay method, although the road on the outer periphery of the road installation is temporarily restored to the slope by the Surisuke temporary restoration work as described above, the above-mentioned road installation re-installed is restored. Since it projects relatively higher than the surrounding road under construction, when the road closure is temporarily released, the operating vehicle rides on this road installation and the driver inadvertently removes the steering wheel. There is a risk that a traffic accident will occur. Similarly, even in the case of the cutting and replacement method, the road installation is highly protruding from the surface of the cut road, so there is a risk of road traffic. Was similar to the above overlay method.

(2) Damage / displacement of road installations. In any of the above construction methods, not only the vehicles that pass when the road is temporarily released, but also the asphalt finisher for road paving work, Macadam / Dandem iron wheel roller, tire roller, etc. When riding, etc., the road installation may be damaged, or the road installation temporarily fixed with mortar, bolts, etc. may be displaced from the required normal position and displaced, impairing the accuracy of construction. was there.

(3) Concerns about the quality of paved roads. In the case of any of the above-mentioned overlay construction method and cutting replacement construction method, the height of the completed road is assumed, and because the road installation is preliminarily installed at a height position that matches this, It is a method of positioning the height of the road installation assuming the height of the completed road surface that has not been cast and installing this, so when the repair work is completed, The heights of road installations do not match,
There is a possibility that a level difference may occur between the paved road surface and the road installation, and the flatness of the road may be impaired.

In addition, when actually constructing a road pavement using an Alfalto finisher or the like, the underbody of the crawler, tires, etc. rides on a projecting road installation, the vehicle body leans, and as a result, the screed height increases. However, the flatness of the paved road surface could not be guaranteed, resulting in the result.

As described above, in each conventional construction method,
Not only anxiety about road traffic, but also the quality of the finished paved road remains to be improved.

Therefore, a road repair contractor has been requested to provide a construction method capable of ensuring the safety of traffic during construction and of completing the repair of the paved road surface with high quality.

[0012]

The object of the present invention is to ensure the safety of traffic during construction, prevent damage to road installations, etc., and ensure the quality of completed paved roads. Is to provide an excellent construction method that can be guaranteed, and the characteristic feature of the construction is that in the method of repairing paved roads with road installations such as manholes, after removing existing road installations, The opening of the concrete pipe buried in is closed by a lid means, then, the upper surface of this lid means is covered with a temporary restoration layer, an overlay layer is laid on the upper surface, and the surface layer is cut together with this overlay layer, After removing the overlay layer, the temporary restoration layer, and the lid means, the manhole is installed again, and the manhole is fixed by the repair layer, and the surface of the temporary restoration layer is fixed to the required thickness. Only after cutting, it is in that no a repairing method of pavement having a road installed object which is adapted to lay an overlay layer on the upper surface thereof.

[0013]

[Operation] Since the construction method of the present invention is as described above, after removing the road installation at the place requiring repair, the opening is temporarily closed by the lid means, and the temporary restoration layer and the overlay layer are provided on the upper surface. Is laid, each of these layers is cut and removed together with the lid means, and then the road installation object is installed.

[0014]

EXAMPLES Next, the contents of the present invention will be explained based on the drawings showing an example thereof.

1 to 8 show a cutting and replacement type construction method for repairing the periphery of a manhole as an example of a road installation, and FIG. 9 shows cutting of a paved road surface used in this construction method. The device is described.

Therefore, prior to the description of the construction method of this embodiment, the construction of the cutting device (1) will be described with reference to FIG.

As shown in FIG. 9, the cutting device (1) has a drive cylinder (11) which is driven to rotate by a drive source (not shown).
The cylindrical cutter (12) integrally connected to the lower end of the
A plurality of cutting blades (12a) are provided around the lower edge of the lower edge, and a guide (1) for guiding the vertical movement of the cylindrical cutter (12).
3) is provided with a disk-shaped base portion (13a) and a guide shaft (13b) protruding from the center thereof, and the guide shaft (13b) is connected to the drive cylinder (11). It is configured so that it can be inserted into the guide hole (11a), and the concrete nail (1) is attached to the outer peripheral portion of the base portion (13a).
It is configured such that a through hole (13c) for allowing 4) to pass therethrough is opened.

The construction method of this embodiment will be described below in detail for each step with reference to FIGS. 1 to 8.

(1) Cutting Step As shown in FIG. 1, a manhole (MA) is placed on a concrete pipe (CP) for a manhole embedded in a base layer (BL).
When the paved road surface around the manhole (MA) is to be repaired in a state in which the surface is paved with the surface layer (FL), the lower edge of the cylindrical cutter (12) of the cutting device (1) is As shown in FIG. 1, the cutting blade (12a) is exposed to the surface layer (FL) of the paved road, and the drive cylinder (11) is rotated and lowered by a drive source (not shown) to lower the outer periphery of the manhole (MA). The surface layer (FL) is cut.

(2) Manhole Removing Step Next, the manhole (MA) and the peripheral surface layer portion (FP) in FIG. 2 are removed by a chain block, a hydraulic removing device, or other removing means (not shown). At this time, the surface layer portion (FP) is previously manhole (M) with a crushing tool such as a breaker.
A method in which the manhole (MA) and the ruptured surface layer portion (FP) are individually removed by rupturing from A) is preferable.

(3) Temporary Restoration Step Next, as shown in FIG. 3, after the concrete pipe (CP) is darkened and covered with a lid (BC), the upper surface thereof is covered with asphalt or the like as shown in FIG. Laying a temporary restoration layer (TL).

(4) Overlay step Next, the provisional restoration layer (TL) is adjusted to have a desired thickness, that is, when the overlay layer (OL) described below is laid, the height of the temporary restoration layer (TL) becomes a desired height. , A road smoothing device (not shown) is used to adjust the thickness to the level shown in FIG.
The top surface of the temporary restoration layer (TL) is cut as indicated by a broken line in FIG. 2 and then an overlay layer (OL) for forming a surface layer (FL) is laid on the surface (see FIG. 6).

(5) Cutting Step Next, as shown in FIG. 7, a guide (13) shown in FIG. 9 is provided at a desired position on the overlay layer (OL), for example, a center position of a pre-measured manhole (MA). Place the concrete nail (14) on the through hole (1) of its base (13a).
3b) and penetrate into the overlay layer (OL) to fix the guide (13).

Thereafter, the drive cylinder (11) of the cutting device (1) shown in FIG. 9 is fitted to the guide shaft (13c) of the guide (13), and in this state, the drive cylinder (11) is rotated and lowered. By doing so, the overlay layer (OL) is cut by the cylindrical cutter (12).

(6) Removal Step Next, the temporary restoration layer (TL) and the dark cover (BC) are removed together with the cutting layer (OP) cut into a disc shape by a removing means (not shown), and the concrete pipe ( The opening of (CP) is exposed.

(7) Manhole installation process Next, the concrete pipe (C
P), the manhole (MA) is placed on the manhole (MA), and the outer periphery of the manhole (MA) is finally filled with a repair material to form a repair layer (RL) that forms the same surface as the overlay layer (OL). The repair processing of the paved road surface around the outer periphery of () is completed (see FIG. 8).

[0027]

Since the present invention is a construction method constructed as described above in detail with reference to its embodiments, the following remarkable effects can be exhibited.

(1) Improving the quality of repair work. In the construction method of the present invention, since the road installation is installed after the overlay layer has been cast at the planned height in advance, the height positions of the paved road surface and the road installation can be perfectly matched. However, the flatness of the road is guaranteed, and the construction process is greatly shortened, such as the need for a picking process, and the advantages of road traffic are extremely great.

(2) Quiet repair work. In the construction method of the present invention, when removing the existing road installation, only the noise of cutting the road for a short time is generated, and the construction is performed extremely quietly over all other construction methods. In addition, the uncomfortable feeling due to noise in the neighborhood can be greatly reduced, and an optimal construction method can be obtained especially for repair work in urban areas.

(3) Ensuring safety of road traffic. During road repair work, after removing the road installation, the concrete pipe will be closed and temporarily restored, so the danger of road traffic will be eliminated and the overlay layer was laid. Since the road installation will be installed again later, there is no obstacle in driving the vehicle and it is safe.

(4) Safety assurance of road installations. As described above, since the road installation object is installed after the overlay layer is placed, the road installation object can be accurately installed without being damaged or displaced by a traffic vehicle or a road construction vehicle.

[Brief description of drawings]

FIG. 1 is a cutting process diagram of an embodiment of the present invention for repairing a paved road surface around a manhole.

FIG. 2 is a process drawing of the same manhole removal process.

FIG. 3 is a temporary restoration process diagram.

FIG. 4 is a temporary restoration process diagram.

FIG. 5 is a temporary restoration process diagram.

FIG. 6 is a view of the overlay process.

FIG. 7 is a cutting process diagram of the same.

FIG. 8 is a process drawing of the manhole installation.

FIG. 9 is a partial vertical cross-sectional view of the cutting device.

[Explanation of symbols]

 BL Base layer FL Surface layer CP Concrete pipe MA Manhole BC Darkening lid TL Temporary restoration layer OL Overlay layer RL Repair layer

Claims (2)

[Claims] 1. In a method for repairing a paved road having a road installation such as a manhole, after removing the existing road installation, the opening of the concrete pipe buried in the base layer is closed by a lid means, and then, The upper surface of the lid means is covered with a temporary restoration layer, an overlay layer is further laid on the upper surface, the surface layer is cut together with this overlay layer, and after removing the overlay layer, the temporary restoration layer and the lid means, the manhole is installed again, A repair method for paved roads with road installations that fix this manhole by a repair layer. 2. The method for repairing a paved road with a road installation according to claim 1, wherein the surface of the temporary restoration layer is cut by a required thickness, and then an overlay layer is laid on the upper surface thereof. .