JPH0786246B2 - Drainage channel for concrete paved road that can be repaired and repair method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of simultaneously repairing a pavement using a pavement that can be lifted, such as a pavement made of prestressed concrete, when the pavement is lifted and repaired. Drainage channel for concrete paved road and its repair method.

[0002]

2. Description of the Related Art Generally, concrete paved roads are unevenly consolidated on the surface of the pavement due to uneven consolidation settlement due to the ground conditions at the time of construction and the usage conditions such as a high load being applied partially after construction. May occur. This phenomenon is conspicuously shown on the runway of an airport, etc. where a paved road surface of a vast area is constructed in a place where the ground condition is not uniform.

At airports where airplanes take off and land frequently, roads where traffic is heavy, etc., it is impossible to close the road for a long time for repairs. A repairing method of lifting the pavement plate and filling the filler in the voids formed on the lower surface of the pavement plate has been developed (JP-A-1-290803).

On the other hand, in most cases, the paved road is provided with a drain groove. This conventional drainage ditch may be made by cast-in-place concrete or by embedding precast concrete products.However, if the condition of pavement changes due to consolidation settlement of the ground, the following repair work is performed. It was One is the method of removing the entire drainage channel and adjusting the level of the foundation to create a new drainage channel. The second is the method of removing the drainage channel from the top of the drainage channel after repairing the adjacent pavement. This is a method of raising the bottom of the groove with concrete.

[0005]

The conventional drainage ditch repair work associated with the above-described pavement plate uplift repair cannot be performed simultaneously with the pavement surface repair, and therefore the pavement surface repair is short. Even if it was possible in time, the whole construction period would not be shortened so much, and there was a problem that long-term traffic regulation would be required.

In view of the above-mentioned conventional problems, the present invention is capable of repairing drainage ditch at the same time as paving slab uplifting and shortening the overall repair work period. The purpose was to provide a repair method.

[0007]

The features of the drainage groove of the present invention for solving the above-mentioned conventional problems and achieving the intended purpose are that a concrete paving slab is laid on a roadbed so that it can be lifted. In a concrete pavement drainage that is installed along the side of the pavement and / or across the central part, a precast drainage skeleton whose cross-section is molded into a U-shaped or box-shaped drainage shape, Peeling off the backing material on the outer peripheral surface
Installed in possible lies in the edge of the precast culvert precursor was supported on the edge of the concrete pavement, also features repair methods on roadbed jack up capable laid the concrete pavement A precast drainage channel body with a U-shaped cross section along the edge is used as the backing material for the outer surface.
We established a release available-for, the edges of the precast culvert precursor allowed to support the concrete pavement, when jack up the concrete pavement that during the repair of the pavement, with the concrete pavement The precast drainage skeleton body is lifted up, and a gap formed between the outer peripheral surface of the precast drainage groove body and the existing backing material is filled with a filler.

[0008]

According to the present invention, a precast culvert precursor was placed in a peeling-friendly capacity for Urakomi material of the outer, and, since the edge is made to support the edge of the concrete pavement, the pavement When the concrete paving slab is raised for repairing, the precast drainage skeleton body is also lifted to the required height at the same time, and the voids formed on its outer surface are continuous with the voids under the concrete paving slab. It becomes possible to fill the filling material into both voids in the same operation.
The repair of the drainage ditch is completed at the same time when the repair of the concrete pavement is completed.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 shows an example in which a drainage groove according to the present invention is formed across a concrete pavement path. In the figure, 1a and 1b are concrete pavement plates, and 2 is both pavement plates 1a, It is a drainage ditch created between 1b.

Both concrete paving slabs 1a, 1b have a prestressed concrete structure in which PC steel wires 3, 3 ...
A large number of jack mounting holes 4 for lifting are formed at various places. Further, both concrete paving slabs 1a and 1b are installed such that a roadbed sheet 6 is laid between the bottom surface and the roadbed 5 and can be separated from the roadbed 5 and lifted. In the figure, 7a and 7b are pillow plates installed on the roadbed 5 below the ends of both concrete paving plates 1a and 1b.

The drainage groove 2 comprises a precast drainage groove skeleton body 8 having a U-shaped cross section, and the skeleton body 8 is placed in a groove 10 between the pillow slabs 7a, 7b on the concrete foundation 9 and the concrete paving slabs 1a, 1b. The backing material 11 is filled in the space between the inner surface of the groove 10 and the drainage groove body 8.

The precast drainage skeleton body 8 is made of a plastic material, and the backing material 11 is made of mortar so that both can be easily peeled off. Further, the precast drainage skeleton body 8 is integrally formed with flange-shaped overhanging pieces 8a, 8b on the outer side of the upper end surface thereof.
It is supported on the stepped portions 12a, 12b on the end faces of a, 1b and fixed by bolts 13, 13, .... Step 12
The surfaces of a and 12b are reinforced by reinforcing angles 14a and 14b.
13 ... is screwed.

The precast drainage skeleton body 8 may be made of various materials such as a reinforced plastic such as FRP, a metal material subjected to anticorrosion treatment, and a reinforced concrete product such as resin concrete. In this case, as the backing material 11, a material that does not adhere to these groove body materials is used.

When the drainage groove 2 constructed as described above is settled together with the concrete paving slabs 1a and 1b due to the consolidation settlement of the ground, the jack 18 is mounted in the jack mounting hole 4 as shown in FIG. Pavement plate 1a
And 1b up to the required height.

At this time, a lifting force simultaneously acts on the precast drainage skeleton body 8, separates from the backing material 11 on the outside thereof, and rises together with the concrete paving slabs 1a, 1b.
As a result, between the concrete paving slabs 1a and 1b and the roadbed 5, and between the precast concrete drainage skeleton body 8 and the backing material 1
A continuous void 15 is formed between the two. A filling material 16 for raising the height is injected into the void 15.

The filler 16 is made of a fluid material such as cement paste or cement mortar.
Filler injection hole 1 made in concrete paving slabs 1a, 1b
Press in from 7 using a pump.

In the above-mentioned embodiment, the case of using the pavement plate made of prestressed concrete is shown.
The present invention can be carried out even if it is an ordinary concrete pavement plate to which no prestress is applied as long as it can be repaired.

As shown in FIG. 3, on both sides of the drainage channel 2,
Concrete pavement plate 1 for drainage gutters via expansion joints 21 and 21 for main concrete pavement plates 20a, 20b
The same can be done when a and 1b are installed.

Further, as shown in FIG. 4, when the concrete paving slab 1a is provided only on one side of the drainage channel 2, for example, when the drainage channel 2 is a side channel of the pavement, one side edge of the precast drainage channel body 8 is Overhang piece 8a with concrete paving slab 1
a is supported.

[0021]

INDUSTRIAL APPLICABILITY As described above, in the concrete pavement drainage channel and the repairing method therefor, the precast drainage channel body is used as the drainage channel, and the body is separated from the backing material on the outer surface of the drainage channel body. Configured to be possible, and by supporting the skeleton on a concrete paving slab, when the concrete pavement is stretched in the correction of unevenness of the concrete pavement surface, the drainage gutter skeleton is raised at the same time without damaging, The height can be corrected and the repair work can be completed in a short period of time.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of implementation of a drainage groove according to the present invention.

FIG. 2 is a cross-sectional view showing a drainage ditch upper repair process according to the present invention.

FIG. 3 is a cross-sectional view showing another embodiment of the drainage groove according to the present invention.

FIG. 4 is a sectional view showing still another embodiment of the drainage groove according to the present invention.

[Explanation of symbols]

 1a, 1b Concrete paving slab 2 Drainage groove 3 PC steel wire 4 Jack mounting hole 5 Roadbed 6 Roadbed sheet 7a, 7b Pillow slab 8 Drainage skeleton body 8a, 8b Overhanging piece 9 Basic concrete 10 Groove 11 Backing material 12a, 12b step Part 13 Bolt 14a, 14b Reinforcement angle 15 Void 16 Filler 17 Filler insertion hole 18 Jack 20a, 20b Concrete pavement 21 Expansion joint

Claims (2)

[Claims] 1. A drainage ditch for a concrete paved road, which is installed along a side of a paved road in which a concrete paving slab is laid so as to be lifted on a roadbed and / or across a central portion, and has a U-shaped cross section. the and-box like precast culvert precursor was molded into a drainage groove shape of, installed in the peeling-friendly capacity for Urakomi material of the outer peripheral surface, the edges of the precast culvert precursor said concrete pavement edges of A drainage ditch for concrete paved roads that can be repaired and is characterized by being supported by. 2. A precast drainage channel body having a drainage channel shape having a U-shaped cross section along the edge of a concrete paving slab that can be lifted up on a roadbed, and can be peeled off from the backing material on its outer surface. The precast drainage skeleton body is supported by the concrete paving slab in advance while being installed, and when the concrete paving slab is lifted when repairing the pavement, the slab and the concrete paving slab are Precast drainage skeleton body is lifted up and the gap created between the outer peripheral surface and the existing backfill material is filled with a filling material. Method.