JP2008050826A - Side ditch remodeling member and remodeling construction method for side ditch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify work for remodeling a U-shaped side ditch to a culvert. <P>SOLUTION: In a shape covering the whole of an opening of an existing side ditch body with the top cut off (a base plate 11), the end is raised at a predetermined height (an end plate 12), a rectangular through hole for a management port is bored, in a base plate 1, the periphery of the through hole is surrounded by raised plates, a lower part 21 fitted to the through hole is provided, and a management port forming frame body 2 is formed of an upper part 22 having a step of such a size to fit and place a grating. After the upper part of the side ditch body of the existing U-shaped side ditch 3 as a remodeling object is cut off in a suitable range, a remodeling member provided with a connecting mechanism capable of fixing the height of the management port forming frame fitted to the through hole at a desired position is placed and fixed on the upper part of the cut-off portion. After a reinforcing bar is disposed in a predetermined position in the side ditch remodeling member, concrete is placed inside the side ditch remodeling member except the management port, and a predetermined grating is mounted in the management port which is an opening. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a side groove repair member and a side groove repair method for repairing an existing side groove to a culvert type.

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

  In particular, a side groove body using a concrete lid is subjected to a load and vibration due to the passage of the vehicle, so that the lid body and the upper side groove body are damaged as aged. Therefore, the damaged side groove body needs to be repaired, and it is disclosed in Patent Documents 1 and 2 as means for repairing the existing side groove adopting the concrete lid body in a culvert.

  Patent Document 1 (Japanese Patent Laid-Open No. 2003-119875) discloses means for removing the upper part of the damaged side groove and reconstructing a new part with a mold as a conventional technique. As a countermeasure, the side groove lid is bonded to the receiving portion of the side groove body with 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 attached to the cutting location, Furthermore, a repair method for coating with resin mortar is disclosed.

  Patent Document 2 (Japanese Patent No. 3784820) discloses means (FIG. 5A) for excising an upper part of an existing side groove body and fixing a culvert lid to the location.

Japanese Patent Application Laid-Open No. 2003-11985. Japanese Patent No. 3784820.

  In the construction using a formwork as in the prior art described in Patent Document 1 to renovate the existing side groove body to a culvert, it is necessary to construct the formwork on site and remove the formwork after the concrete is solidified. The renovation work is very cumbersome.

  Further, the proposed means described in Patent Document 1 (a method using resin mortar) has a problem in terms of durability because it requires repair again when the resin mortar on the surface is peeled off by running of the vehicle. If the lid is fixed to the receiving part of the side groove, it will not be possible to cover the lid, and cleaning of the side groove will not be possible. It becomes construction.

  The means that employs a separately formed undercover for a culvert described in Patent Document 2 is formed on the basis of an accurate standard, so the upper part of the side groove to be repaired must be accurately cut off. In many cases, the lateral groove body to be repaired is slightly displaced vertically and horizontally due to secular changes (changes in ground and earth pressure). In this situation, accurate excision of the lateral groove body is a cumbersome task. End up.

  Therefore, the present invention proposes a repair method that can be easily performed on site when repairing an existing U-shaped side groove into a culvert, and a repair member used in the repair method.

  The gutter repair member according to the present invention has a shape that covers the entire opening of the existing U-shaped side gutter body with the upper part cut off, and has an end, a side edge, or four circumferences upright at a predetermined height, and at an appropriate position in the center. A rectangular through hole is formed, and a substrate having a perimeter of the through hole surrounded by a rising plate portion, a lower portion fitted to the through hole, and an upper portion having a level difference capable of fitting and mounting the grating. A connecting mechanism capable of fixing the height of the management port forming frame at a desired position between the lower part fitted into the through hole and the rising plate part overlapping with the lower part. It is characterized by being provided.

  Further, the gutter repair method according to the present invention cuts out the upper part of the side groove body of the existing U-shaped side groove to be repaired within an appropriate range, and places and fixes the above-mentioned gutter repair member on the upper part of the cut part, After placing a reinforcing bar at a predetermined position in the member for use, concrete is placed inside the gutter repair member excluding the management port location, and a predetermined grating is attached to the management port serving as an opening. To do.

  Therefore, the existing U-shaped side groove is renovated into a culvert by constructing a culvert cover with a management opening fitted with a grating in the portion from which the upper portion is removed.

  In the present invention, the existing U-shaped side groove is repaired by hitting on-site, and it can flexibly cope with the on-site situation, and the mold itself forms a part of the undercover, and the repair The construction was easy.

  Next, an embodiment of a gutter repair member according to the present invention will be described. FIG. 1 shows an embodiment, which is composed of two members, a substrate 1 and a management port forming frame 2.

  The substrate 1 includes a bottom plate portion 11 having a width corresponding to the standard of the existing U-shaped side groove 3 and a predetermined length (unit span for constructing a culvert cover), and a unit for constructing an end portion of the bottom plate portion 11 An end plate portion 12 raised to a predetermined height is formed so as to correspond to the thickness of the culvert cover, and a management port rectangular through hole 13 is formed at an appropriate position in the center, and the periphery of the through hole 13 is formed. It is surrounded by the rising plate part 14.

  Further, bolt holes 15 are formed at appropriate intervals on both sides of the bottom plate portion 11, and connection holes 16 are formed at appropriate positions on the rising plate portion 14.

  As components attached to the substrate 1, a reinforcing bar 17 disposed on the bottom plate portion 11, a headless bolt 18 inserted into the bolt hole 15, and a tightening nut 19 screwed into the headless bolt 18 are provided.

  The management port forming frame 2 is composed of a lower portion 21 and an upper portion 22, and the lower portion 21 has a shape that fits into the through hole 13, and a connecting vertical hole 23 is formed at a position corresponding to the connecting hole 16. In addition, a connecting bolt 24 that is inserted through the connecting vertical hole 23 and the connecting hole 16 and a tightening nut 25 that is screwed into the connecting bolt 24 are provided.

  The upper portion 22 has a shape having a predetermined placement step composed of a placement flat surface portion 26 on which the grating 4 is placed and a frame elevation surface portion 27 that serves as an outer frame edge of the cladding 4.

  Next, a method for repairing a gutter according to the present invention using the repair members 1 and 2 will be described along a construction procedure.

  The upper part of the existing U-shaped side groove 3 with the existing lid shown in FIG. 2 is cut and removed within an appropriate range as illustrated in FIG. 3, and a bolt standing hole 32 is formed at a predetermined position on the upper surface of the cut surface. The bolt erecting hole 32 is formed by placing the substrate 1 on the cut upper surface, marking the position of the bolt hole 15, and piercing the mark position.

  Next, the lower end of the headless bolt 18 is inserted into the bolt upright hole 32 and fixed using an adhesive. The substrate 1 is arranged in the side groove cutting upper space so that the fixed headless bolt 18 passes through the bolt hole 15 and the side groove is covered. At the same time, the tightening nut 19 is screwed and tightened to the headless bolt 18 to fix the substrate 1 to the cut upper surface of the U-shaped side groove 3.

  Next, the management port forming frame 2 is mounted. In this mounting, the lower portion 21 is fitted into the rectangular hole 13 for the management port, and the connecting bolt 24 is mounted through the connecting vertical hole 23 and the connecting hole 16 to connect them. The tightening nut 25 is screwed onto the bolt 24. At this time, the height of the management port forming frame 2 is adjusted by adjusting the bolt penetration position of the connecting vertical hole 23. In addition, when the height adjustment of the end plate part 12 of the board | substrate 1 is required, it respond | corresponds by cutting | disconnection of a protrusion part. Of course, it goes without saying that the height adjusting means of the management port forming frame 2 is not limited to the above configuration.

  When the installation of the repair member (the substrate 1 and the management port forming frame 2) is finished, a predetermined reinforcing bar 17 is arranged at an appropriate height above the bottom plate portion 11 (FIG. 4), and the concrete 5 is poured onto the bottom plate portion 11.

  The concrete 5 is surrounded by the end plate portions 12 at both ends of the substrate 1 and the slope 31 when the U-shaped side groove 3 is cut out, and within a range of the outer periphery of the management port forming frame 2, a predetermined height (road surface and It is placed at the same height.

  When the concrete 5 is solidified, when the grating 4 is placed and mounted on the management port forming frame 2, the U-shaped side groove 3 is repaired into a culvert.

  In the above-described embodiment, the end plate 12 is provided in the substrate 1, and a culvert is constructed by solidification of concrete, particularly when the slope 31 does not require a concrete formwork. .

  The slope 31 is used as a concrete formwork. However, in a situation where the road surface condition is bad and the slope 31 cannot be used as it is, a formwork plate such as a thin plate wood or a metal plate is used.

  Further, as in the substrate 1a illustrated in FIG. 6 other than the embodiment described above, the end plate portion is not provided, but the end plate portion is provided as in the substrate 1b illustrated in FIG. 12 and a side plate portion 12a may be employed.

  Even when the substrates 1a and 1b are employed, a culvert can be constructed in the same process as the substrate 1. However, when the substrate 1a is employed, the thin plate wood is used instead of the end plate portion 12. Use a form plate such as a metal plate.

  Furthermore, the use of the substrates 1a and 1b increases the strength of the entire substrate, so that there is an advantage that a thin material can be used as the material used for the substrate, and in the field where the slope 31 is rough as illustrated in FIG. A culvert can be constructed without the need for the longitudinal formwork of the side grooves, and the repair of 31 slopes only needs to be filled with repair asphalt 6.

  As described above, the present invention leaves the existing U-shaped side groove body lower part with few scratches as it is and can perform construction in a state where the drainage function is maintained. The construction work efficiency was excellent, and the road surface finish could be reliably and neatly formed.

Explanatory drawing (whole perspective view) of the repair member (1st embodiment) of this invention Explanatory drawing of the work process of this invention construction method (sectional drawing before repair). The figure (at the time of excision of gutter) The same figure (incorporation of repair material) The figure (when placing concrete) Explanatory drawing (perspective view) of the substrate of the repair member (second embodiment) Explanatory drawing of the board | substrate of the repair member (3rd embodiment). Explanatory drawing of a work process at the time of using the said repair member (2nd, 3 embodiment) (cross-sectional view before repair). Sectional drawing after repair at the time of using the said repair member (2nd, 3 embodiment).

Explanation of symbols

1, 1a, 1b Substrate 11 Bottom plate portion 12 End plate portion 12a Side plate portion 13 Management port rectangular through hole 14 Rising plate portion 15 Bolt hole 16 Connecting hole 17 Reinforcing bar 18 Headless bolt 19 Tightening nut 2 Management port forming frame 21 Lower part 22 Upper part 23 Connecting vertical hole 24 Connecting bolt 25 Tightening nut 26 Mounting plane part 27 Frame elevation part 3 U-shaped side groove 31 Slope 32 Bolt upright hole 4 Grating 5 Concrete 6 Repair asphalt

Claims (2)

  A shape that covers the entire opening of the existing side groove body with the upper part cut off, and the end, side edge, or four circumferences are erected at a predetermined height, and a rectangular through hole for a management port is formed at an appropriate position in the center. A board that surrounds the periphery of the hole with a rising plate part, a lower part that fits into the through-hole, and a management port forming frame body that includes an upper part having a step that is large enough to fit and mount the grating, A gutter repair member comprising a connecting mechanism capable of fixing the height of the management port forming frame at a desired position between a lower portion fitted in the through hole and a rising plate portion overlapping with the lower portion. . The upper part of the side groove body of the existing U-shaped side groove to be repaired is appropriately cut out, and the side groove repair member according to claim 1 is placed and fixed on the upper part of the cut portion, and is placed at a predetermined position in the side groove repair member. After arranging the reinforcing bars, concrete is cast inward of the gutter repair member excluding the management port location, and a predetermined grating is attached to the management port serving as an opening portion.

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