JP2005273382A - Side ditch repairing method and side ditch repairing member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a member for use in a method of efficiently repairing only an upper portion of a side ditch without using a form, and to provide a new side ditch repairing method by using the member. <P>SOLUTION: The repairing member is a long metallic edge member formed of a step portion consisting of a front surface portion and a mounting surface portion, and an upper edge forming portion extending rearward from the mounting surface portion and having a downward facing U-shaped opening. The upper edge forming portion has a mortar injection hole 124 formed in an upper surface thereof. The mounting surface portion has a screw hole formed at a predetermined location thereof, and under service conditions, a headless screw is inserted into the screw hole. The side ditch repairing method is comprised of an existing matter removing step of excavating the ground surface adjacent to the target existing side ditch for repairing, to a suitable depth, cutting an upper portion of the side ditch in a suitable range, and drilling a support hole in a cut surface at a predetermined location; a member arranging step of arranging the repairing member on the upper surface of the cut side ditch and inserting a lower portion of the headless bolt into the support hole; a repairing member fixing step of backfilling the excavated portion adjacent to the side ditch and filling mortar or the like on a rear surface of the repairing member; and a finishing step of carrying out finishing of a road surface adjacent to the side ditch and mounting a grating on the repairing member. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a side groove repair method and a repair member used in the method.

  A concrete road side groove (hereinafter referred to as a “side groove body”) having an open top called a U-shaped groove is provided with a concrete lid or a metal lid called grating on the opening.

  In particular, a road side groove (side groove body) using a concrete lid is subjected to load and vibration due to the passage of a vehicle, so that the lid body and the upper side of the side groove body are damaged as aged. Therefore, the damaged side groove body needs to be repaired. Conventionally, a method of replacing the entire side groove body or incorporating a resin U-shaped groove inside the side groove body (Patent Document 1) is known.

  However, the above construction method requires a side groove bypass path during the construction period in order to maintain the side groove function, and there is a complexity in constructing the bypass path.

  Japanese Patent Laying-Open No. 2003-1-1875 (Patent Document 2) discloses means for removing the upper part of the damaged side groove and reconstructing a new part with a mold as a prior art. As a countermeasure, the side groove lid is bonded to the receiving portion of the side groove body with the resin mortar, the upper surface of the lid body and the upper surface of the side groove body are cut, and a sheet material is adhered to the cutting location. Further, a repair method for coating with resin mortar is disclosed.

Japanese Utility Model Publication No. 3-2085. Japanese Patent Application Laid-Open No. 2003-11985.

  Among the above-described conventional repair methods, the method of repairing only the upper part of the side groove body has the advantage that the side groove function is maintained and does not require the construction of a bypass path. In the construction to be used, it is troublesome to attach and detach the formwork, and in the construction method using resin mortar, if the resin mortar on the surface is peeled off due to running of the vehicle, it needs to be repaired again, and in terms of durability Has a problem.

  Further, if the concrete lid is fixed to the receiving portion of the side groove body, the cover body cannot be covered, and the side groove cleaning or the like cannot be performed.

  Therefore, the present invention repairs only the lid mounting part, and the repair work can be easily and efficiently performed.In particular, when a grating having excellent durability is adopted as the lid after repair, The present invention proposes a new method for repairing a side groove and a member for using the same, in which the mounting of the grating is surely and accurately performed and a robust structure is obtained.

  The side groove repair member according to the present invention is a long metal rim member disposed at the upper part of the side groove body, and is a stepped portion comprising a placement surface portion that is retracted from the front surface portion and the upper edge of the front surface portion to secure a predetermined placement surface. And a lower opening U-shaped upper edge forming portion continuous behind the placement surface portion, forming a mortar injection hole on the upper surface portion of the upper edge formation portion, and forming a screw hole at a predetermined position of the placement surface portion. In addition, a headless bolt is screwed into the screw hole.

  Further, the gutter repair method according to the present invention uses the above-mentioned repair member, excavates the ground adjacent to the existing side gutter to be refurbished to an appropriate depth, cuts out the upper part of the side gutter body in an appropriate range, and determines a predetermined cut surface. An existing object removing step of digging a support hole in a place, a member arranging step of placing the repair member on the upper surface of the excision side groove body by inserting the lower part of the headless bolt into the support hole, and a side groove adjacent excavation place It consists of refurbishment and fixing process for fixing the mortar or concrete on the back side of the refurbishment member, finishing process for the side surface adjacent to the side groove and finishing process for attaching the grating or concrete cover to the refurbishment member. It is.

  Therefore, it was possible to repair a structure that can be used for mounting and mounting a grating or a concrete lid without using a formwork by using a repair member on the upper surface part (removal part) of the existing side groove body. By adjusting the height position, the horizontal position of the grating mounting surface and the concrete lid mounting surface can be adjusted, and the bolt can also serve as a bolt for fixing the grating.

  In the repair member of the present invention (Claims 2 and 3), a mortar seal portion having flexibility is further provided on the back surface of the step portion, or a rubber cushion sheet portion is provided on the placement surface portion of the step portion. It is characterized by providing.

  Therefore, when the front surface of the stepped portion of the repair member is made to follow the inner surface of the side groove body, mortar or the like is not leaked when the back surface of the repair member is filled with mortar or the like. Further, by providing the cushion seat portion, the vibration of grating due to vehicle running is absorbed.

  Further, in the repair method according to the present invention (Claim 5), in the member placement step, a wire mesh member is placed in the side groove adjacent excavation site, and in the repair member fixing step, mortar or concrete is placed in the side groove adjacent excavation site. The second placement in which mortar or concrete is injected from the mortar injection hole into the inner space of the upper edge forming part of the repair member that is unfilled in the first placement construction. It is a construction work.

  Therefore, the side groove adjacent range is also constructed of mortar or the like containing a wire mesh, so that the periphery of the side groove is solidified and the mortar or the like is reliably filled in the repair member.

  According to the present invention (Claims 1 and 4), by adopting the above-described configuration, the structure can be easily modified to a structure in which the grating mounting is accurately performed without using a mold.

  In addition, the present invention (Claim 2) is provided with a flexible mortar seal portion on the back surface of the stepped portion of the repairing member, and prevents leakage at the time of placing mortar, etc. This contributes to improving the efficiency of renovation work by eliminating processing work.

  Further, the present invention (Claim 3) is provided with a rubber cushion sheet portion on the mounting surface portion of the step portion of the repair member. By simply employing a repair member, the grating vibration absorbing function can be achieved. Can be granted.

  Further, according to the present invention (Claim 5), a mortar containing a wire mesh is constructed in the excavation location adjacent to the side groove, so that the periphery of the side groove is solidified and the durability of the side groove is improved.

  Next, an embodiment of the present invention will be described. The repair member 1 shown in the embodiment is a long metal edge member that can be disposed on the upper side of the side groove body and has a size of a predetermined unit in a size that is a placement portion of the grating 2 that serves as a side groove cover. .

  The details are provided with a step portion 11 as a place where the grating 2 is placed and an upper edge forming portion 12 as an upper edge of the side groove. A front surface portion 111 having a height that functions as a front surface portion 111 and a placement surface portion 112 that is retracted from the upper edge of the front surface portion 111 to secure a predetermined placement surface. A flexible mortar seal 113 is provided over the entire length in the longitudinal direction. Further, a rubber cushion sheet portion 114 is provided on the mounting surface portion 112.

  Further, a screw hole 115 is provided at a predetermined position (a position corresponding to the fixing portion of the grating) of the mounting surface portion 112, and a headless bolt 116 is screwed into the screw hole 115. Of course, the headless bolt can be screwed with a nut, and has an operation groove formed at the top so that it can be rotated.

  The upper edge forming portion 12 is formed continuously from the rear (outside) of the placement surface portion, and has a U-shaped cross-section with a lower opening provided with an inner surface portion 121, an upper surface portion 122, and an outer surface portion 123. A mortar injection hole 124 is provided at an appropriate position of the portion 122.

  Next, a method for repairing the side groove using the repair member 1 will be described along construction procedures. The construction is performed in the order of an existing object removal process, a member arrangement process, a repair member fixing process, and a finishing process.

  In the existing side removal process, in the existing side groove (FIG. 3A), the concrete cover body (which may be a grating) 3 to be repaired is removed, the road pavement (asphalt) 5 adjacent to the side groove body 4 is peeled off, An appropriate range is excavated to an appropriate depth (for example, a width of 300 mm and a depth of 200 mm). The separated pavement area is defined as a pavement space A, and the excavation area is defined as an excavation space B.

  Then, the upper portion of the side groove body 4 is cut out in an appropriate range (a range shorter than the total height of the repair member), and a support hole 41 is dug in a predetermined portion of the cut surface. The support hole 41 has a depth and a diameter that allow the headless bolt 116 of the repairing member 1 to stand upright (FIG. 3B).

  In the member arrangement step, the repair member 1 is arranged on the upper surface of the excision side groove body 4a, and the wire mesh member 6 is arranged in the excavation space B. The repair member 1 adjusts the horizontal position of the repair member by inserting the lower portion of the headless bolt 116 into the support hole 41 and adjusting the screwing position of the headless bolt 116 and the screw hole 115. At this time, the front surface portion 111 is configured to cover the upper portion of the inner side surface of the excision side groove body 4a, and the mortar seal portion 113 is in contact with the inner side surface of the excision side groove body 4a. Moreover, the wire mesh member 6 is made to put an appropriate leg so that it may be located below the middle of the excavation space B as much as possible (FIG. 3C).

  The repair member fixing process is performed by placing two mortars (non-shrinkable mortar is optimal, but concrete may be used) 7. The first placement work is performed when the mortar 7 is poured into the excavation space B. The mortar 7 fills the excavation space B and also penetrates between the upper end of the excision-side groove 4a and the stepped portion 11 to integrate the headless bolt 116 and the excision-side groove 4a (FIG. 2). In this first installation work, the mortar seal portion 113 prevents the mortar 7 from leaking out.

  Since the mortar 7 does not reach the inside of the upper edge forming portion 12 of the repairing member 1 in the first placement work, the second placement in which the mortar (or concrete) 7 is injected from the mortar injection hole 124. The installation work is performed and mortar is placed within a desired range.

  In the finishing process, the asphalt 8 is laid in the pavement space A and re-paved after the mortar is solidified by finishing the side surface adjacent to the side groove and attaching the grating 2 to the repair member 1. Further, since the repairing member 1 becomes a mounting receiving portion of the grating 2, the grating 2 is placed on the placing surface portion 112, a headless bolt 116 is inserted into the fixing portion of the grating 2, and a nut is screwed into the grating. 2 is installed in the modified gutter.

  Therefore, the renovation of the side groove was completed while maintaining the drainage function while leaving the lower part of the existing side groove body with little damage intact, and the side groove adjacent to the side groove was integrated with the side groove body. Therefore, the durability of the side groove is remarkably improved. Further, the grating vibration absorbing function can be provided by the cushion sheet portion 114.

  Although the above-described embodiment has shown an example in which grating is adopted as a lid, a concrete lid may be adopted. In this case, considering the difference between the thickness of the grating and the thickness of the concrete, a repair member corresponding to the concrete lid may be used. It should be excised.

The partial perspective view of the embodiment of the member for repair of the present invention. Explanatory drawing of the same use state. (B) shows the state after the existing object removal process (c) shows the state after the member placement process (d) shows the state at the end of the repair. Indicates.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Repairing member 11 Step part 111 Front surface part 112 Mounting surface part 113 Mortar seal part 114 Cushion seat part 115 Screw hole 116 Headless bolt 12 Upper edge formation part 121 Inner side surface part 122 Upper surface part 123 Outer side part 124 Mortar injection hole 2 Grating ( Newly established)
3 Concrete lid (existing)
4 Existing side groove 4a Cut side groove 41 Support hole 5 Asphalt pavement (existing)
6 Wire mesh member 7 Mortar 8 Asphalt pavement (renovation)

Claims (6)

  A long metal rim member placed at the top of the side groove body, which is continuous from the front part and the step part made up of a mounting surface part that secures a predetermined mounting surface by retreating from the upper edge of the front part and the rear of the mounting surface part A lower opening U-shaped upper edge forming portion, a mortar injection hole is formed in the upper surface portion of the upper edge forming portion, a screw hole is provided at a predetermined position of the mounting surface portion, and the screw hole is headless. A member for repairing a side groove formed by screwing a bolt.   The side groove repair member according to claim 1, wherein a mortar seal portion having flexibility is provided on the back surface of the front portion of the step portion.   The gutter repair member according to claim 1 or 2, wherein a rubber cushion sheet portion is provided on the mounting surface portion of the step portion.   Excavation of the ground adjacent to the existing side groove to be repaired to an appropriate depth, excising the upper part of the side groove body in an appropriate range, drilling a support hole at a predetermined location on the cut surface, and an upper surface of the cut side groove body 4. A member arranging step in which the modified member according to any one of claims 1 to 3 is disposed by inserting a lower portion of a headless bolt into a support hole, backfilling of a side groove adjacent excavation site, and mortar or concrete on the rear surface side of the modified member. A side groove repairing method comprising: a repair member fixing step of filling a surface, a finishing process of a road surface adjacent to the side groove, and a finishing step of attaching a grating or a concrete lid to the repair member.   In the member placement process, the wire mesh member is placed in the side groove adjacent excavation point, and in the repair member fixing step, backfilling is performed by the first placement work in which mortar or concrete is placed in the side groove adjacent excavation point. The gutter repair method according to claim 4, wherein a second placement work is performed in which mortar or concrete is injected from a mortar injection hole into the space inside the upper edge forming portion of the repair member that is unfilled in the turn placement work.   The side groove repair method according to claim 4 or 5, wherein the finishing of the road surface adjacent to the side groove is asphalt pavement.

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