JP2011137348A - Method for repairing groove upper structure, cutting disk and method for setting groove lid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for repairing a groove upper structure, which allows efficient repairing work by facilitating cutting operation or lid setting operation, a cutting tool used for the method, and a method for setting a new groove after cutting and removing a groove side wall upper portion. <P>SOLUTION: The method for repairing a groove upper structure includes using a cutting disk having diamond fine powder applied to a side surface of a disk, cutting the inside of both groove side walls respectively in a semicircular sectional shape by pushing down the rotating disk larger in diameter than a groove inside width in a vertical direction while maintaining it horizontally so as to be laid across both the groove side walls, horizontally cutting one groove side wall in the thickness direction to horizontally cut off an upper portion of the one groove side wall at a desired depth position, and then cutting this groove side wall in the extending direction thereof, thereby removably cutting the upper portion of the one groove side wall. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method for repairing a groove upper structure, a cutting disk used for the method, and a groove lid installation method using the method, and a groove such as a side groove of a road, for example, a groove or groove made of concrete only on both side walls. Is a method of repairing the upper structure of an existing concrete groove, such as a U-shaped concrete groove, and more specifically, a method of removably cutting the upper groove side wall of the groove and a cutting tool used for the method The present invention relates to a new groove lid installation method performed after cutting and removing the upper portion of the groove sidewall.

  In an existing concrete groove (hereinafter also referred to as a groove), for example, a side groove of a road, the upper portion of the groove side wall (hereinafter also referred to as the groove side wall) of the groove provided on the road shoulder is often damaged. As the lid of the groove becomes poorer, the damaged area becomes easier to expand, and there is a problem of noise generation due to rattling. Therefore, depending on the degree of damage, the upper part of both side walls of the groove extends over the extending direction of the groove. Renovation work is being carried out in which a new lid is installed (hereinafter also referred to as a lid installation method) by cutting and removing (hereinafter also referred to as a cutting method).

Conventional general renovation work is performed in the order of steps shown in FIGS.
The oval shapes 10A and 10B shown in the figure are cutting disks generally used for cutting, and these are used by being attached to a cutting device equipped with a disk drive mechanism. In the figure, the cutting device is omitted.

First, a conventional cutting method will be described with reference to FIGS.
In FIG. 10, a cutting disk 10A having a diameter smaller than the inner width of the groove 1 (hereinafter also referred to as a small diameter cutting disk) is horizontally inserted into the groove.

  Next, in FIG. 11, the small-diameter cutting disk 10A is horizontally cut from the inside of one groove side wall 2 to the outside to the middle of the width of the groove side wall 2, and the groove 1 is left in this cut state. The primary cut 11 </ b> A reaching a depth in the middle of the thickness of the groove side wall 2 is formed by horizontally moving in the extending direction.

  Next, in FIG. 12, after forming the primary incision 11A in the other groove side wall 3 in the same manner as described in FIG. 11, a large-diameter cutting disk 10B for separation described in the process in FIG. In order to insert horizontally into the groove (hereinafter also referred to as a large-diameter cutting disk), a part of the groove side wall 2 is broken from the top to the depth of the primary cut portion, that is, the cut portion (cutting surface) 11A, using a hammer or the like from above. To do.

  Next, in FIG. 13, the relative portion of the other groove side wall 3 is also broken in the same manner as in the process described with reference to FIG. 12, and the breaking holes 12 (12, 12) for inserting the large-diameter cutting disc 10 B at both broken portions. Form.

  Next, in FIG. 14, the large-diameter cutting disk 10B is inserted into the groove from the fracture hole 12, the blades of the large-diameter cutting disk 10B are inserted into the primary incisions 11A of both the groove side walls 2 and 3, and the groove side wall 2 is formed into its thickness. It is cut deeply in the direction until it reaches the outside of the groove side wall 2, and the secondary cut 11B is formed as it is moved in the extending direction of the groove 1 as it is. By forming the primary cut 11A and the secondary cut 11B, The upper portions of the groove side walls 2 and 3 are completely separated from the main body of the groove 1.

Next, the lid installation method will be described with reference to FIGS.
In FIG. 15, in the step described with reference to FIG. 14, the separated groove sidewall upper portion is removed by an appropriate means. For example, it may be removed by crushing with a crusher, or may be removed by lifting a crane.

  Next, in FIG. 16, the installation surface (lower surface) of the lid 100 described later with reference to FIG. 18 is formed on the cut surfaces of the groove sidewalls 2 and 3, that is, the cut surfaces 23 and 33, which are flattened by removing the upper portions of the groove sidewalls. The fitting holes 13, 13, 13, 13 into which the engagement protrusions formed by being integrally formed with the lid 100 are inserted are formed on the) side.

Next, in FIG. 17, an adhesive is applied to the entire thickness of the cutting surfaces 23 and 33 to a uniform thickness.
If it is not the entire surface but is partial, or the thickness is not uniform, the installation of the lid 100 becomes unstable, and rattling is likely to occur, resulting in inconvenience of early damage outside the planned schedule. Cost. Conventionally, since ready-mixed concrete has been used as an adhesive, it is difficult to equalize, and it takes time and effort to provide a concrete formwork.

  Finally, in FIG. 18, the fitting hole 13 in which the engagement protrusion (not shown) provided integrally on the installation surface side (lower surface side) of the lid 100 is formed in the cutting surfaces 23 and 33 of the groove side walls 2 and 3. , 13, 13, and 13, and the lid 100 is put on to finish the installation.

  In the above-mentioned conventional cutting method, two types of cutting disks, a small diameter and a large diameter, must be prepared and used, and a troublesome replacement work of the respective cutting disks to a cutting device (not shown) is frequently performed. In addition, since a secondary cutting operation is required after the primary cutting is formed, and a large-diameter cutting disk is used, a separate fracture hole is created so that the large-diameter cutting disk is inserted horizontally into the groove. There was an inconvenience that work was also required.

  Further, in the above conventional lid installation method, a fitting hole that matches the engagement protrusion of the lid must be provided at a predetermined position on the cutting surface of both side walls of the groove, and accuracy is required for the fitting hole drilling position. In addition, the lid must be prepared with a special and special lid with engagement protrusions in place, and it is considered to prevent the adhesive from flowing into the groove when applying the adhesive to the entire cutting surface. In addition, it requires a cumbersome and straining work of applying a uniform thickness, and the same carefulness is required for covering the applied cutting surface with a lid, so the work has to be repeated There was also a disadvantage in terms of work efficiency.

  The present invention has been made for the purpose of solving the above-mentioned problems, and it is easy to perform cutting work and lid installation work, and can be efficiently repaired. It aims at providing the installation method of the new groove cover after cutting and removing.

The present invention has been made to achieve the above object,
The invention of the method for repairing the groove upper structure according to claim 1 uses a cutting disk in which diamond fine powder is applied to the side surface of the disk, and spans the rotating disk having a diameter larger than the inner width of the groove on both groove side walls. In order to cut off the upper part of one groove side wall horizontally at a desired depth position, while cutting the inside of each groove side wall into a half-moon shape while pushing down vertically downward while maintaining the horizontal Cutting horizontally in the thickness direction of the one groove side wall, cutting in the extending direction of the groove side wall in the cut state, cutting the upper part of the one groove side wall in a removable manner Features.

  The invention of the method for repairing the groove upper structure according to claim 2 uses a cutting disk having diamond fine powder applied to the side surface of the disk, and spans the rotating cutting disk having a diameter larger than the inner width of the groove on both groove side walls. In order to cut off the upper part of one groove side wall horizontally at a desired depth position, while cutting the inside of each groove side wall into a half-moon shape while pushing down vertically downward while maintaining the horizontal After cutting horizontally in the thickness direction of the one groove side wall and cutting in the extending direction of the groove side wall in the cut state, the upper portion of the other groove side wall is also cut horizontally to Cut horizontally in the thickness direction, cut horizontally in the extending direction of the other groove side wall in the cut state, and cut the upper part of both groove side walls of the groove so that it can be excised. To do.

  According to a third aspect of the present invention, in the repair method for a groove upper structure according to the second aspect, after cutting in the extending direction of one groove side wall, the cutting is performed horizontally in the thickness direction of the other groove side wall at the cutting end position. It is characterized by that.

  The invention of the method for repairing the groove upper structure according to claim 3 of the present invention is to cut horizontally in the thickness direction of the other groove side wall and to the other groove side wall toward the half-moon-shaped cutting site of the other groove side wall. It is characterized by cutting horizontally in the extending direction of the side wall.

  According to a fifth aspect of the present invention, in the method for repairing a groove upper structure according to the fourth aspect, the cutting disk is lifted upward and removed from the groove at the semi-moon-shaped cutting portions on both groove side walls.

  According to a sixth aspect of the present invention, in the repair method for a groove upper structure according to any one of the first to fifth aspects, the cutting disk is a disk having a saw blade on the outer peripheral edge.

  According to a seventh aspect of the present invention, in the repair method for a groove upper structure according to any one of the first to sixth aspects, a cutting disk in which diamond fine powder is applied to both sides of the disk is used.

  The invention of the cutting disk according to claim 8 is characterized in that a saw blade is provided on the outer peripheral edge of the disk and diamond fine powder is applied to at least one side surface of the disk.

  The invention of the cutting disk according to claim 9 is characterized in that a saw blade is provided on the outer peripheral edge of the disk and diamond fine powder is applied to both sides of the disk.

  According to a tenth aspect of the present invention, a groove lid installation method is provided in which the groove cover newly covered on the cutting surfaces of both groove side walls cut into a flat shape by any of the cutting methods according to any one of the first to seventh aspects. A gap spacer member that secures a predetermined gap between each of the cutting surface and the lower surface of the lid is disposed at least at four corner positions to stably install the groove lid.

  According to an eleventh aspect of the present invention, in the groove lid installation method according to the tenth aspect, along the groove-side edge on each cutting surface of both groove side walls, into the groove of the adhesive applied on the bonding surface. It is characterized in that long partition members for preventing the inflow of each are arranged.

  According to a twelfth aspect of the present invention, in the groove lid installation method according to the eleventh aspect, the long partition member is an elastic member that receives and compresses the weight of the groove lid.

  The invention of claim 13 is the groove cover installation method according to claim 12, wherein the elastic member is a sponge.

  According to a fourteenth aspect of the present invention, in the groove lid installation method according to any one of the tenth to thirteenth aspects, the adhesive applied to the cutting surface excluding the portion where the gap spacer member and the long partition member are arranged is It is a mortar.

  According to a fifteenth aspect of the present invention, in the groove lid installation method according to any one of the tenth to fourteenth aspects, the concave portions whose openings coincide with each other on both the cutting surface of the groove side wall and the lower surface of the groove lid are formed. Further, when the groove lid is put on the cutting surface, a fitting member in which the upper and lower side portions are accommodated in both concave portions is interposed to prevent horizontal movement of the groove lid.

  According to a sixteenth aspect of the present invention, in the groove lid installation method according to the fifteenth aspect, the recess is a drilled drill hole, and the fitting member is a bar material that fits in the drilled drill hole.

  A seventeenth aspect of the invention is characterized in that, in the groove lid installation method according to the sixteenth aspect, the bar is a metal bar or a synthetic resin bar.

  According to each of the inventions of claims 1 to 17, it is not necessary to prepare two kinds of cutting disks of a small diameter and a large diameter as in the prior art, and a large cutting disk 1 having a diameter larger than the groove width. Since it is sufficient to use only the seed, it is not necessary to make a separate hole for inserting a large-diameter cutting disc as in the conventional method, and it is not necessary to replace the cumbersome and cumbersome cutting disc. The upper part of the target groove side wall can be cut so as to be excisable, and the work of repairing the groove upper structure can be carried out, which is remarkably more efficient than conventional cutting work.

  Further, according to each of the inventions of claims 10 to 17, unlike the conventional lid installation method, it is not necessary to perform a molding process such as an engagement protrusion on the groove lid, and therefore it is simple and can be used universally. A flat plate-shaped object can be used as the groove lid, which can reduce costs and work processes.

  According to the inventions of claims 10 to 17, in any case, the operation of covering the groove cover on the cutting surface to which the adhesive is applied is facilitated.

  Further, according to the inventions of the tenth to fourteenth aspects, the use of the gap spacer member makes it easy to apply the adhesive with a uniform thickness.

  According to each of the inventions of claims 11 to 14, in any case, the adhesive can be easily and easily prevented from flowing into the groove in the entire surface application operation of the adhesive onto the cutting surface.

  BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, as the best mode for carrying out the present invention, a repair method for a groove upper structure of a U-shaped concrete groove generally used for a side groove of a road, a cutting disk used in the method, and a groove in the method The lid installation method will be described with reference to FIG.

  1-9 of the Example typically showed the 1st process-the 8th process of the repair process from cutting of the upper part of both groove side walls which are side grooves of a road to installing a groove cover in order of a process. In general, from the first step shown in FIG. 1 to the fourth step shown in FIG. 4 is the cutting step, and from the fifth step shown in FIG. 5 to the eighth step shown in FIG.

  In the first step shown in FIG. 1, the illustrated groove 1 is an existing groove, and is a perspective view showing a state in which an existing old groove lid (not shown, hereinafter also referred to as an old groove lid) is removed. It is. Incidentally, the steps 21 and 31 inside the upper portions of both groove side walls 2 and 3 shown in the figure are receiving portions (21 and 31) in which the edges of the old groove cover are housed.

Reference numeral 4 in the figure is a cutting disk used in this embodiment.
The cutting disk 4 is obtained by applying diamond fine powder (not shown) almost entirely on the lower surface side, which is one side surface of the disk 4, and is detachably attached to a rotary drive device (not shown). The concrete surface is cut into a circular shape by pressing the surface of the disk that rotates in the direction of the axis of rotation of the disk (the lower surface in the example shown in the figure) against the workpiece, for example, the concrete surface. It has a function of drilling a cylindrical concave hole or through hole having a desired inner diameter corresponding to the outer diameter of the disk. Hereinafter, an apparatus including a disk having such a function and a mechanism for rotationally driving the disk is also referred to as a circular hole drilling apparatus.

In this embodiment, as the cutting disk 4, a cutting disk in which diamond fine powder is applied to at least one side surface (the lower surface in this example) of the disk 4 is used. A cutting disc (not shown) with diamond fine powder applied to the surfaces (upper and lower surfaces) may be used, and further, for circular drilling provided with diamond fine powder applied to one or both of the side surfaces. In the disk, a cutting disk (not shown) that can also be used as a cutting blade by providing a saw blade on the outer peripheral edge of the disk 4 may be used.
Hereinafter, such a cutting disk is also referred to as a special cutting disk. In addition, a cutting disk capable of cutting on the side surface side of the disk is also referred to as a surface cutting disk.

In the first step of FIG. 1 again, the cutting disk 4 used here is a cutting disk in which diamond fine powder is applied to the lower surface side of the disk 41 as described above. 1 has a larger diameter than the inner width of 1 and spans both the groove side walls 2, 3, but is smaller than the outer width of the outer side of the material side walls 2, 3, that is, the groove 1, and the radius of the disk 4 is larger than the width of the side wall. A large-diameter cutting disk is used.
The cutting disk 4 is mounted on a rotary drive device (not shown), and the cutting disk 4 is pushed down vertically while being rotated while maintaining the cutting disk 4 horizontally across the groove side walls 2 and 3. Hereinafter, this process is also referred to as a vertical cutting process.

  Next, in the second step shown in FIG. 2, the cutting disk 4 is horizontally placed so as to span the groove side walls 2 and 3 and pushed down vertically while rotating. As shown in FIG. The inside of each of 2, 3 is cut in a half-cylindrical shape when viewed from the vertical direction with half-moon shapes 22 and 32 in the horizontal section. Hereinafter, this cutting shape is also referred to as a semicircular cross section.

In the third step shown in FIG. 3, when the desired depth position is reached in the vertical cutting step, that is, the first step in FIG. 1, that is, in the depth direction of the groove, the upper portions of the groove sidewalls 2 and 3 are horizontally disposed. When reaching the position to be separated, the disk 4 is cut in the thickness direction of one of the groove side walls 2 (left groove side wall 3 in the figure) while rotating the disk 4 horizontally from that position, and is further cut. Then, the groove side wall 2 is cut in the extending direction. Thus, first, the upper part of one of the groove side walls 2 is horizontally cut so as to be removable.
This cut portion is denoted by reference numeral 41 in the figure. Hereinafter, the operation of horizontally cutting the upper portion of the groove sidewall 2 so as to be removable is also referred to as a horizontal cutting step.

In the fourth step shown in FIG. 4, FIG. 4 shows a state in which the left and right groove sidewalls 2 and 3 are horizontally cut and the respective upper portions are removed.
That is, if one groove side wall 2 is horizontally cut in the previous horizontal cutting step (third step), it is an arbitrary position reached while horizontally cutting, that is, the one groove side wall to be removed in the third step of FIG. When reaching the position corresponding to the extended length of the upper portion of 2, the disk 4 is rotated at that position, and the other groove side wall 3 (right groove side wall in FIG. 3) is cut horizontally in the thickness direction. Further, the groove is cut in the extending direction of the groove side wall 3, that is, the cutting position having a semicircular cross section, that is, the cutting portion 32 having a semicircular cross section, while being further cut.

Thus, after cutting in the extending direction of one groove side wall 2 (left), it is cut horizontally in the thickness direction of the other groove side wall 3 (right) facing each other at the cutting end position, and further in the extending direction. Cut horizontally. Since this horizontal cutting process is substantially the same as the horizontal cutting process of the left groove side wall 2 described above, the illustration is omitted.
The cutting disc 4 can be easily removed from the groove 1 by stopping the rotation of the cutting disc 4 at the semicircular cut portions 22 and 32 of the groove side walls 2 and 3 and pulling them up vertically.
Thus, when the left and right groove sidewalls 2 and 3 are horizontally cut and the respective upper portions are removed by appropriate conventional means, the horizontal cut portions (41) of the left and right groove sidewalls 2 and 3 are flat as shown in FIG. Cutting surfaces 23 and 33.

In addition, the removal supplementary preparatory work process using a suitable conventional means may be needed for the upper part of the groove | channel which is divided from the existing groove | channel so that removal is possible.
For example, at the cutting end position where the required length has been cut in the extending direction of one groove side wall 2 (left), when an uncut upper portion remains first from the cutting end position, at the cutting end position, It cut | disconnects in the orthogonal | vertical direction using the cutting disk for cutting suitably.

  Further, for example, at a portion that has been cut in the thickness direction of the other groove side wall 2 (right) relative to the cutting end position of one groove side wall 2 (left) (hereinafter, this portion is also referred to as a relative cutting end position). However, if an uncut upper portion remains in the direction opposite to the half-moon-shaped cross-section, it is cut in the vertical direction as appropriate using a cutting disc for cutting at the relative cutting end position.

  Further, for example, even when the upper portions remain extending in the half-moon-shaped cutting portions 22 and 32 of both the groove side walls 2 and 3, vertical cutting is performed using an appropriate cutting disc (not shown). Cut in the direction. By these removal supplementary preparatory work steps as necessary, the upper portions of the groove sidewalls 2 and 3 to be removed are cut into a separated state that can be removed from the existing grooves 1.

  The cutting disk 4 used in this embodiment uses a cutting disk in which diamond fine powder is applied to one disk side surface, that is, the lower surface side, but a cutting disk (not shown) applied to both side surfaces may be used. Further, a disk provided with a saw blade on the outer peripheral edge of these cutting disks themselves, that is, a cutting disk with a saw blade (not shown) may be used. If a cutting disk with a saw blade is used, the horizontal direction Cutting is a more efficient work.

  According to this embodiment, since only one type of special cutting disk 4 having a diameter larger than the inner width of the groove 1 and smaller than the outer width of the groove is used, a small diameter and a large diameter can be used as in the prior art. There is no need to prepare two types of cutting discs 10A and 10B, and the two types of cutting discs 10A and 10B, that is, the complicated replacement of a circular saw, is unnecessary, and a fracture hole for inserting a large-diameter cutting disc 12 and 12 (FIG. 13) need not be separately operated, and the upper portions of the side walls 2 and 3 of the groove 1 for excision can be cut in a single cut operation so that it can be removed. The cutting work to separate the groove upper part can be performed dramatically more efficiently than before, and the repair work of the groove upper structure can be easily shortened and performed efficiently. be able to.

Next, based on the fifth step in FIG. 5 to the ninth step in FIG. 9, the groove lid installation method performed after the removal of the groove upper portion will be described.
First, in the fifth step of FIG. 5, the cut surfaces 23 and 33 of the groove side walls 2 and 3 cut into a flat shape, that is, on the bonding surface to which the lower surface side of the lid 10 (FIGS. 7 to 9) described later is bonded. An adhesive (not shown) is applied between the cutting surfaces 23 and 33 and the lower surface of the lid 10 at least at the four corners of the lid to be covered, i.e., at the positions to be placed in the vicinity of the four corners. The gap spacer members 5, 5, 5, 5 for securing a predetermined gap necessary for this are arranged so as to be placed at least. Hereinafter, this is also referred to as a gap spacer member disposing step.

  An appropriate adhesive (not shown) may be applied to the lower surface side of the gap spacer members 5, 5, 5, 5. When such an adhesive for gap spacer members is used, the arrangement positions of the gap spacer members 5, 5, 5, 5 are more reliably held, and therefore, such as repositioning work due to misalignment easily caused by other work. Unnecessary work is unnecessary.

Next, in the sixth step shown in FIG. 6 and FIG. 7, on the bonding surface along the inner edge of the groove on the cutting surfaces 23, 33, that is, the bonding surfaces (23, 33) of both the groove side walls 2, 3. In order to prevent the adhesive for lids (hereinafter also referred to as lid adhesive) from flowing into the groove 1 (in the groove), the long partition members 6 and 6 for damming are provided. Place each one. Hereinafter, this is also referred to as a damming long member arrangement step.
The long partition members 6 and 6 used in this step are preferably elastic members that compress under the weight of the groove lid 10, and in this example, a synthetic resin sponge is used.

  Note that an appropriate adhesive (not shown) may be applied to the lower surface side of the long partition members 6 and 6 as well as the gap spacer members 5, 5, 5, and 5. When such an adhesive for partition members is used, as in the case of the gap spacer members 5, 5, 5, 5, the arrangement positions of the long partition members 6, 6 are more reliably held, This eliminates unnecessary work such as repositioning work due to misalignment that is likely to be caused by.

Next, in the seventh step shown in FIG. 8, one side of the lid misalignment prevention means is configured so that the openings coincide with each other on both the cutting surfaces 23 and 33 of the groove side walls 2 and 3 and the lower surface of the groove lid 10. Concavities 7, 7, 7, 7 are formed as components on the cutting surface side, and a receiving hole indicated by an imaginary line in FIG. 8 is formed on the lower surface side of the other groove lid 10, and the groove lid 10 is formed on the cutting surface 23, 33, lids in which rod-shaped upper and lower portions are respectively accommodated in the recesses 7, 7, 7, 7 on the cutting surface side (only the recesses on the cutting surface side are shown) and the receiving holes indicated by the imaginary lines when covered. It arrange | positions so that the fitting members 8, 8, 8, and 8 as the other component which comprises a slip prevention means may be interposed.
Thereby, the covered groove cover 10 is prevented from horizontal movement, that is, positional displacement. Hereinafter, this operation process is also referred to as a groove lid position fixing process.

  In this embodiment, the recesses 7, 7, 7, 7 and the receiving part as the lid slip prevention means are drilled with a drilling drill, and the fitting members 8, 8, 8, 8 as the lid slip prevention means are the above-mentioned drilling. Although the rod material which fits in the drill holes 7 and 7 is used, of course, it is not restricted to this, For example, a recessed part is formed in a box shape, and a fitting member fits in the box-shaped space formed by the upper and lower box-shaped recessed parts. A box-shaped block, for example, a commercially available dice-shaped concrete roller may be used.

  Moreover, although the bar material 8, 8, 8, 8 is used as a fitting part agent of an Example, this bar material is a metal bar material, such as a reinforcing bar, or a synthetic resin bar material (synthetic resin bar material). May be used.

Next, in the eighth step shown in FIG. 9, the lid is fixed on the plane of the cutting surfaces 23, 33 excluding the arrangement portion of the gap spacer members 5, 5, 5, 5 and the long partition members 6, 6. Mortar is applied over the entire surface as an adhesive (hereinafter also referred to as a lid adhesive) (not shown).
In this case, it is preferable that the thickness of the mortar as the lid adhesive, that is, the height of the mortar, is an amount that contacts the entire lower surface of the groove lid 10 to be covered.
The lid adhesive is not limited to mortar, and an appropriate adhesive may be used.

  According to this embodiment, unlike the conventional lid installation method, there is no need to mold the groove lid like an engagement protrusion, and therefore a simple and universal flat plate-shaped object can be used as the groove lid. It is possible to reduce the manufacturing cost of the groove cover 10 and the work process, and the flat groove cover 10 can be simply flattened for storage and transportation, The work of covering the groove lid 10 on the cutting surfaces 23 and 33 to which the adhesive is applied is also facilitated.

Further, the use of the gap spacer members 5, 5, 5, 5 makes it easy to apply the lid adhesive with a uniform thickness.
In addition, the use of the long partition members 6 and 6 makes it possible to easily and easily prevent the adhesive from flowing into the grooves in the entire surface application work of the adhesive for the lid to the cutting surfaces 23 and 33. Can be speeded up.

  In the above embodiment, the construction method for the side groove of the road has been described. However, the present invention is not limited to this, and the present invention can be widely applied to repair work of a concrete groove.

It is a perspective view which shows the 1st process of this invention. It is a perspective view which shows the 2nd process of this invention. It is a perspective view which shows the 3rd process of this invention. It is a perspective view which shows the 4th process of this invention. It is a perspective view which shows the 5th process of this invention. It is a perspective view which shows the 6th process of this invention. It is a front view which shows the 6th process of this invention. It is a perspective view which shows the 7th process of this invention. It is a front view which shows the 8th process of this invention. It is a perspective view which shows the conventional 1st process. It is a perspective view which shows the conventional 2nd process. It is a perspective view which shows the conventional 3rd process. It is a perspective view which shows the conventional 4th process. It is a perspective view which shows the conventional 5th process. It is a perspective view which shows the conventional 6th process. It is a perspective view which shows the conventional 7th process. It is a perspective view which shows the conventional 8th process. It is a perspective view which shows the conventional 9th process.

1 groove 2 groove side wall (left)
22 Cutting part (left)
23 Cutting surface (left)
3 Groove side wall (right)
32 Cutting part (right)
33 Cutting surface (right)
4 Cutting disk 41 Cutting part 5 Gap spacer member 6 Long partition member 7 Recessed part (groove side wall)
8 Bar material (fitting member)
10 Groove lid

Claims (17)

  Using a cutting disk with diamond fine powder on the side of the disk, the rotating disk having a diameter larger than the inner width of the groove is held horizontally and is pushed down vertically while being held horizontally across both groove side walls. The inside of each groove side wall is cut into a half-moon cross section, and the upper part of one groove side wall is cut horizontally in the thickness direction of the one groove side wall at a desired depth position. A method of repairing a groove upper structure, characterized in that the upper portion of the one groove side wall is removably cut by cutting in the extending direction of the groove side wall in an open state.   Using a cutting disk with diamond fine powder on the side of the disk, the rotating disk having a diameter larger than the inner width of the groove is held horizontally and is pushed down vertically while being held horizontally across both groove side walls. The inside of each groove side wall is cut into a half-moon cross section, and the upper part of one groove side wall is cut horizontally in the thickness direction of the one groove side wall at a desired depth position. In this state, after cutting in the extending direction of the groove side wall, the upper part of the other groove side wall is cut horizontally in the thickness direction of the other groove side wall, A method for repairing a groove upper structure, characterized in that the upper portions of both groove side walls of the groove are cut so as to be excisable by cutting horizontally in the extending direction of the other groove side wall.   3. The method for repairing a groove upper structure according to claim 2, wherein after cutting in the extending direction of one groove side wall, the groove is cut horizontally in the thickness direction of the other groove side wall facing at the cutting end position.   It is cut horizontally in the thickness direction of the other groove side wall, and is cut horizontally in the extending direction of the other groove side wall toward a semicircular cut section of the other groove side wall. Repair method for the groove superstructure of Item 3.   5. The method for repairing a groove upper structure according to claim 4, wherein the cutting disk is lifted upward and removed from the groove at the semicircular cut portion of the side walls of both grooves.   6. The method of repairing a groove upper structure according to claim 1, wherein the cutting disk is a disk having a saw blade on an outer peripheral edge.   The method for repairing a groove upper structure according to any one of claims 1 to 6, wherein a cutting disk in which diamond fine powder is applied to both sides of the disk is used.   A cutting disk comprising a saw blade on the outer periphery of the disk and diamond fine powder applied to at least one side surface of the disk.   A cutting disk comprising a saw blade on the outer periphery of the disk and diamond fine powder applied to both sides of the disk.   8. The cutting surface and the lid respectively at positions of at least four corners of the groove cover to be newly covered on the cutting surfaces of both groove side walls cut into a flat shape by the cutting method according to any one of claims 1 to 7. A groove lid installation method characterized in that a gap spacer member that secures a predetermined gap from the lower surface of the groove is disposed to stably install the groove lid.   A long partition member for preventing the adhesive applied on the bonding surface from flowing into the groove is disposed along the groove-side edge on each cutting surface of both groove side walls. Item 11. The groove lid installation method according to Item 10.   12. The groove cover installation method according to claim 11, wherein the long partition member is an elastic member that receives and compresses the weight of the groove cover.   The groove lid installation method according to claim 12, wherein the elastic member is a sponge.   The groove lid installation method according to any one of claims 10 to 13, wherein the adhesive applied to the cutting surface excluding the portion where the gap spacer member and the long partition member are arranged is mortar. A recess with matching openings is formed on both the cutting surface of the groove side wall and the lower surface of the groove lid, and when the groove cover is put on the cutting surface, a fitting member is provided in which the upper and lower portions fit in both the recesses. The groove lid installation method according to claim 10, wherein horizontal movement of the groove lid is prevented. The groove lid installation method according to claim 15, wherein the recess is a drilling hole, and the fitting member is a rod that fits in the drilling hole. 17. The groove lid installation method according to claim 16, wherein the bar is a metal bar or a synthetic resin bar.

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