JP3476528B2 - Joint repair materials such as dams - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint repairing member such as a dam for repairing a joint such as a dam that has changed due to an earthquake or the like.

[0002]

2. Description of the Related Art Conventionally, for example, when concrete blocks and blocks fluctuate due to the influence of an earthquake or the like, and joints between blocks are greatly opened or deformed, if left as it is, it will lead to a large collapse. ,
As shown in FIG. 11, repair is performed by a metallic joint repair member 105 fixed with a bolt 103 between the blocks 101, 101.

[0003]

As described above, the joint 107 between the blocks 101, which has changed due to the influence of an earthquake or the like, is repaired by the joint repair member 105. However, depending on the location, immediate repair is required and the ground is urged. There are cases in which the operation is performed before it becomes stable.

For this reason, generally, as shown in FIG. 12, a mounting hole 109 for a joint repair member 105 for bolting to a block 101 is formed in a long hole shape.
Although measures have been taken to cope with variations after completion of repair in the range of the long holes, there are cases where the long hole-shaped mounting holes 109 cannot cope with it. Therefore, it is an object of the present invention to provide a joint repairing member such as a dam which is capable of sufficiently coping with variations after completion of repairing.

[0005]

In order to achieve the above object, according to the present invention, an arch is formed of a corrugated metallic material and is formed on both sides of the arch along the longitudinal direction. A first joint repair main body provided with a continuous mounting portion, and an arch formed of a sheet-shaped flexible material which is continuous with the first joint repair main body and is formed on both sides of the arch portion. , And a second joint repair main body provided with a continuous attachment portion along the longitudinal direction.

As a preferred embodiment, next to the first joint repair main body and the second joint repair main body, further,
The first and second joint repair bodies may be in a continuous combination, or a bent portion that bends inward may be provided on the free end side of the second joint repair body.

[0007]

According to this joint repair member, the free end side of the second joint repair main body is inserted into the joint which is largely displaced. At this time, if a bent portion that is bent inward in advance is used, insertion becomes easy. Next, after fixing the left and right mounting parts to each block by fixing means such as bolts, etc., insert stones or sand bags into the joints and press the bent parts inserted in the joints to the ground. At the same time, by adding an asphalt mixture such as asphalt mastic from above, repair of the joint portion having a good sealing property is completed.

On the other hand, even if the ground changes after the joint repair is completed, the amount of the change is absorbed by the arch portion and the corrugated plate portion, so that the repair portion is not likely to be damaged.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings of FIGS.

In FIG. 1, reference numeral 1 denotes a joint repairing member composed of a first joint repairing body 3 and a second joint repairing body 5. The first joint portion repair main body 3 includes corrugated plate-shaped arch portions 7 formed of a metallic material, and mounting portions 9 and 9 provided on both sides of the arch portions 7 and continuous in the longitudinal direction. The arch portion 7 and the mounting portion 9 are integrally formed by pressing or the like.

Although the corrugated plate shape of the arch portion 7 is a shape which is orthogonal to the longitudinal direction, it may be a shape along the longitudinal direction. Mounting holes 1 are provided in the left and right mounting portions 9, 9.
1 are provided at predetermined intervals. In addition, mounting hole 1
1 may have a long hole shape.

The second joint repair main body 5 is formed in the shape of a sheet made of flexible heat-resistant rubber, synthetic resin or the like, and is integrally formed with the first repair main body 3 by fixing means such as bolts. By combining, the arch portion 13 and the arch portion 1
Mounting portions 15 and 15 are formed on both sides of 3, respectively.

The arch portion 13 and the mounting portion 15 are continuous with the arch portion 7 and the mounting portion 9 of the first joint portion repair main body 3 along the longitudinal direction, respectively. Due to the restoring force of the material that is trying to return to the shape, a clear arch shape cannot be obtained and the shape is collapsed. Also, mounting holes 17 are provided in the mounting portion 15 at predetermined intervals.

Next, the repair work using the joint repair member 1 will be specifically described. First, as shown in FIG.
For the left and right concrete blocks 21 and 21 in which 9 has changed, a hole is made in a portion corresponding to the mounting holes 11 and 17 provided in the mounting portions 9 and 15 of the joint repair member 1, and the holes 23 are formed in the holes 23. The anchor bolt 25 is embedded.

Next, the attachment parts 9, 15 of the joint repair member 1
At the same time as inserting the holes 11 and 17 for attachment provided in the anchor bolt 25 into the anchor bolt 25 for temporary support, the free end side of the second joint portion repair main body 5 is pushed into the joint portion 19 (FIG. 3),
Then, the nut 27 is screwed onto the anchor bolt 25 and tightened to complete the attachment of the joint repair member 1 (FIG. 4).

In this case, as shown in FIG.
The bent portion 29 that can be inserted into the second joint portion repair main body 5
It is very preferable in terms of workability if it is provided on the free end side of.

Next, as shown in FIG. 5, stones, sandbags, etc. are thrown in from above the joint portion 19 to hold down the region of the bent portion 29, and then the asphalt is put in place using a throwing bucket 31 as shown in FIG. By injecting the asphalt mixture 33 such as mastic, the repair of the joint portion 19 where a reliable seal is obtained is completed.

On the other hand, after the joint is repaired, even if the joint 19 expands due to the fluctuation of the ground, the arch 7,
There is no risk that the fluctuation will be absorbed by 13 and the repaired part will be destroyed.

Although the joint portion 19 of the concrete block 21 has been described in this embodiment, in the case of the metal cylinder 35 and the joint portion 37 of the metal cylinder 35 as shown in FIG. 9, the first joint repair is performed. The mounting portion 9 of the main body 3 is mounted by welding. Attachment part 15 of second joint repair main body 5
Is attached by an adhesive means using an adhesive, but a more reliable attachment state can be obtained by using it together with a bolt.

Further, as shown in FIG. 10, after the first joint repair body 3 and the second joint repair body 5, first
The second joint repair main bodies 3 and 5 may be connected to each other so that the rigid region and the flexible region are alternately repeated.

According to this embodiment, there is an advantage that it is possible to cope with a complicated variation between blocks by the intermediate flexible region which becomes the second joint repair main body 5.

[0022]

As described above, according to the joint repair member of the present invention, even after the joint repair is completed, even if the ground changes, the amount of change can be absorbed by the arch portion. become. Therefore, there is no risk of destruction of the repaired portion.

[Brief description of drawings]

FIG. 1 is a perspective view of a joint repair member according to the present invention.

FIG. 2 is an explanatory diagram of work in which an anchor bolt is embedded in a concrete block.

FIG. 3 is an explanatory diagram in which a joint repair member is attached to a concrete block.

FIG. 4 is an explanatory view in which a free end side of a second joint portion repair main body is inserted into a joint portion.

FIG. 5 is a cut side view in which a stone, a sand bag, or the like is put in after the joint repair member is completely attached.

FIG. 6 is an explanatory view of charging the asphalt mixture with a charging bucket.

FIG. 7 is a cross-sectional view of the joint repair work completed.

FIG. 8 is a perspective view in which a bent portion that is bent inward is provided on a free end side of a second joint portion repair main body.

FIG. 9 is an explanatory view in which a joint repair member is fixed to a metal cylinder.

FIG. 10 is a perspective view similar to FIG. 1 showing a modified example of the joint repair member.

11 is an explanatory view similar to FIG. 3 showing a conventional example.

FIG. 12 is a perspective view of a joint repair member showing a conventional example.

[Explanation of symbols]

3 First joint repair body 5 Second joint repair body 7 arch part 9 Mounting part 13 Arch 15 Mounting part

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E02B 3/04 E02B 3/16

Claims (3)

(57) [Claims] 1. A first joint repair main body, wherein an arch is formed of a corrugated plate-shaped metallic material, and mounting portions that are continuous along the longitudinal direction are provided on both sides of the arch portion. A second arch that is continuous with the first joint repair body and is formed with a sheet-shaped flexible material to form an arch, and has attachment portions that are continuous along the longitudinal direction on both sides of the arch portion. A joint repairing member such as a dam, which is formed with the joint repair main body. 2. The combination of the first joint repair body and the second joint repair body, and further, the first and second joint repair bodies are in a continuous combination. Item 1
Joint repairing material for the dam, etc. 3. The joint repair member according to claim 1, wherein a bent portion that bends inward is provided on a free end side of the second joint repair main body. Element.