JP5798173B2 - Renovation method for gutter lid - Google Patents

Description

  The present invention relates to a method for repairing a concrete side groove lid mounted on an existing side groove made of concrete.

  The side groove lid mounted on the existing side groove is formed in a width direction (short direction) in the left lid receiving portion and the right lid receiving portion which are formed by being cut off inside the respective upper left and right side walls of the side groove. ) Covers the opening between the opposite left and right side walls with both ends supported, and partly chipped or cracked due to repeated application of load and vibration, putting the pedestrian in danger It becomes a source of noise.

  As a method for repairing the side groove cover deteriorated as described above, a method of replacing an existing side groove cover with a new side groove cover and a method of darkening with cast-in-place concrete are known.

  However, even if the side groove cover is newly replaced, it is impossible to drastically solve the problem that the newly formed side groove cover is eventually chipped or cracked due to a load or vibration, or the backlash is generated.

  Moreover, in the repair method by on-site casting, a curing period of several days is required for the cast concrete to harden to a predetermined strength, and it cannot be used on the same day.

  Therefore, as shown in Patent Document 1 below, a new side groove lid (primary lid) as a secondary concrete product is fixed to the left and right lid receiving portions of the existing side groove via a filler such as mortar, and the existing side groove and the new side groove lid are A refurbishment method that integrates the two has been developed.

JP 2008-255612 A

  According to the repair method of the above-mentioned patent document 1, it is possible to finish the work in a short time with a simple work of simply using the left and right lid receiving portions of the existing side groove to arrange the new side groove cover and fix it with the filler. In addition, the new side groove cover is integrated with the existing side groove, and has an advantage that rattling or the like can be effectively prevented.

  However, especially when the bottom surface of the lid receiving portion of the existing side groove (the support surface of the new side groove lid) is damaged, the level is adjusted on the lower side of the new side groove lid, and the upper surface of the new side groove lid and There is a problem that a complicated operation of making the upper end surface of the side wall flush with each other is required.

  Even if the lid receiving part is not damaged, if the thickness of the new side groove cover and the thickness of the removed existing side groove cover do not match, the upper surface of the new side groove cover and the upper end surfaces of the left and right side walls of the existing side groove are flush with each other. There is a problem that cannot be done.

  The present invention provides a method for repairing a side groove lid that appropriately solves the problems of the conventional methods described above.

In short, the refurbishing method according to the present invention includes a left lid receiving portion and a right groove receiving portion which are supported by the left lid receiving portion and the left lid receiving portion which are formed by being cut off inside each upper left side wall and right side wall of the existing side groove. The repair method includes the following steps A to F , and the side groove lid can be easily and appropriately repaired even if the lid receiving portion is damaged.
A: Remove the existing side groove lid,
B: Prepare a new side groove cover that is thinner and narrower than the above existing side groove cover,
C: A plurality of suspension jigs that bridge between the upper end surfaces of the opposing left and right side walls of the existing side groove are attached to the upper surface of the new side groove cover at intervals along the longitudinal direction.
D: Each hanging jig is fixed and attached in a state where the lower surface of each hanging jig is in close contact with the upper surface of the new side groove cover.
E : The lower surface of the left end portion of each hanging jig is placed on the upper end surface of the left side wall of the existing side groove, and the lower surface of the right end portion of the hanging jig is placed on the upper end surface of the right side wall of the existing side groove. The new side groove cover is placed while the upper surface of the new side groove cover is flush with the upper end surface of the left and right side walls by bridging the suspension jigs between the upper end surfaces of the left and right side walls of the existing side groove. Is supported by hanging between the rising surfaces of the left and right lid holders,
F : A space defined between the left end surface of the suspended new side groove lid and the rising surface of the left lid receiving portion and a space defined between the right end surface of the new side groove lid and the rising surface of the right lid receiving portion. The space to be filled is filled with a filler, and the new side groove cover is fixed.

  Here, as described above, the shape of the new side groove cover according to the present invention is thinner and narrower than the existing side groove cover and can be suspended by the hanging jig. It is optional depending on the implementation. That is, the new side groove cover according to the present invention includes a side groove cover having a water collecting slit formed on the upper surface, a side groove cover formed with a convex portion that vibrates the automobile and warns the driver on the upper surface, and prevents slipping on the upper surface. It includes a side cover that has been processed, a primary cover that includes an opening for attaching a secondary cover, and the like.

  Preferably, a sealing material is disposed between the bottom surface of each of the left and right lid receiving portions of the existing side groove and the bottom surface of the new side groove cover facing each bottom surface, and the filling material is filled. Effectively prevents outflow into the existing side groove.

  Further, a bolt hole is formed on the upper surface of the new side groove cover, and the hanging jig is attached by a bolt screwed into the bolt hole, so that the hanging jig can be easily attached and detached.

  If the left side wall of the existing side groove and / or the upper end surface of the right side wall are damaged, a wedge is driven between the damaged upper end surface and the lower surface of the end of the hanging jig. The level adjustment of the side groove cover can be performed, that is, the level adjustment can be performed from the exposed upper surface side of the new side groove cover, and the level adjustment work can be performed reliably and easily.

  In the renovation method of the side groove cover according to the present invention, the level adjustment of the new side groove cover is easily and appropriately performed by suspending the new side groove cover with a hanging jig that bridges between the upper end surfaces of the left and right side walls of the existing side groove. Can be done.

  Even if one or both of the left and right lid receiving portions of the existing side groove are damaged, if the upper end surfaces of the left and right side walls are healthy, the repair work can be appropriately performed.

  Even if one or both of the upper end surfaces of the left and right side walls are damaged, the level adjustment of the new side groove cover can be performed from the upper surface side of the new side groove cover, that is, the side exposed to the outside. Renovation work can be done.

The perspective view which outlines the state which fixes a hanging jig | tool to a newly installed side groove cover. (A) is a perspective view showing an example of a new side groove cover in which a water collecting slit is formed, (B) is a perspective view showing an example of a new side groove cover in which a plurality of protrusions are formed on the upper surface, and (C) is a small groove on the upper surface. The perspective view which shows the example of the new side groove cover which formed many in FIG., (D) is a perspective view which shows the example of the new side groove cover as a primary cover. The perspective view which shows the relationship between a newly installed side groove cover and an existing side groove. Explanatory drawing which outlines a mode that the newly installed side groove cover was made into the suspended state via the suspension jig | tool. The space between the left end surface of the new side groove lid and the rising surface of the left lid receiving portion of the existing side groove and the space between the right end surface of the new side groove lid and the rising surface of the right lid receiving portion of the existing side groove are outlined. Explanatory drawing to show. Explanatory drawing which outlines the state which has arrange | positioned the wedge between the side wall upper end surface where the existing side groove | channel is damaged, and the lower surface of a hanging jig | tool. The perspective view which outlines the state which fixed the newly installed side groove cover, and then removed the hanging jig.

  The best mode of the present invention will be described below with reference to FIGS.

  The renovation method of the side groove cover according to the present invention is a renovation method in the existing side groove 11 made of concrete shown in FIGS. 3 to 7, and the existing side groove 11 includes a left side wall 12 and a right side wall 13 which are opposed to each other. The left lid receiving portion 14 having an L-shaped cross section formed by being cut off at the upper inner side of the wall 12 and the right lid receiving portion having an L-shaped cross section formed by being cut off at the upper inner side of the right wall 13. 15.

  In other words, the side groove cover repairing method according to the present invention is based on the concrete side groove cover fitted with the left and right cover receiving portions 14 and 15 of the existing side groove 11 having the above-described structure. When this occurs, the damaged existing side groove cover is removed, and repair is performed using a new concrete side groove cover instead. In addition, the existing side groove 11 includes both those formed of in-situ cast concrete and those formed of a concrete secondary product.

  First, the new side groove cover 1 used for the repair method according to the present invention will be described. The new side groove cover 1 shown in FIG. 1 is composed of a concrete secondary product that is formed to be thinner and narrower than the existing side groove cover that is fitted to the left and right cover receiving portions 14 and 15 of the existing side groove 11. Preferably, the thickness of the new side groove cover 1 is set to be 5 mm or more thinner than the thickness of the existing side groove cover, and the width of the new side groove cover 1 is set to be 20 mm or more shorter than the width of the existing side groove cover.

  That is, as shown in FIG. 3, the thickness (length between the upper surface 1a and the lower surface 1d) H1 of the new concrete side groove cover 1 is equal to that of the left and right cover receiving portions 14 and 15 into which the existing side groove cover is fitted. The height is set to be 5 mm or more thinner than the height H2 of the rising surfaces 14b and 15b, and the suspended state described later is surely formed. Further, the width (length between the left end surface 1b and the right end surface 1c) T1 of the new side groove cover 1 is equal to the rising surface 14b of the left cover receiving portion 14 and the right cover support, which are fitted with the existing side groove cover. 20 mm or more shorter than the interval T2 with the rising surface 15b of the portion 15 and is defined between the rising surface 14b of the left lid receiving portion 14 and the left side surface 1b of the new side groove lid 1 in the filling step of the filler 17 described later. The width of the space to be formed and the width of the space defined between the rising surface 15b of the right lid receiving portion 15 and the right side surface 1c of the newly installed side groove lid 1 are ensured to be 10 mm or more, respectively, and appropriate filling is achieved.

  A bolt hole 1e for attaching a hanging jig 2 to be described later is formed on the upper surface 1a of the new side groove cover 1. For example, as shown in FIG. 1, the bolt hole 1 e is formed by embedding an invert hanger 4 in concrete when manufacturing the new side groove cover 1.

  Note that the new side groove cover 1 used in the repair method according to the present invention is not only a simple flat plate shape shown in FIG. 1, but the outer shape is thinner and narrower than the existing side groove cover. If it can be suspended, the shape is arbitrary according to the implementation.

  For example, the new side groove cover 1 used in the present invention is a side groove cover 1 in which a water collecting slit 7 is formed on the upper surface 1a as shown in FIG. 2A, and the upper surface 1a as shown in FIG. The side groove lid 1 formed with a convex portion 8 for giving vibration and prompting the driver to warn, the side groove lid 1 formed with a large number of small grooves 9 on the upper surface 1a as shown in FIG. A side groove lid (primary lid) 1 having an opening 10 for inserting the secondary lid 1 ′ as shown in FIG. Needless to say, a bolt hole 1e for attaching the hanging jig 2 to be described later is formed on the upper surface 1a of each side groove cover 1 illustrated above at a place where the function of each side groove cover 1 is not hindered.

  By using the bolt hole 1e on the upper surface 1a of the new side groove cover 1 used in the present invention having the above-described configuration, as will be described later, between the upper end surface 12a of the left side wall 12 and the upper end surface 13a of the right side wall 13 of the existing side groove 11. A plurality of steel hanging jigs 2 to be bridged are attached at intervals along the longitudinal direction of the new side groove lid upper surface 1a.

  More specifically, the bolt 3 is inserted into the through hole 2b formed in the hanging jig 2 and screwed into the bolt hole 1e of the new side groove cover 1, so that the lower surface 2a of the hanging jig 2 is connected to the new side groove cover 1. It is fixed and attached in close contact with the upper surface 1a. The suspending jig 2 can be easily attached and detached by attaching the bolts.

  The hanging jig 2 is formed of a rod-shaped steel material having an L-shaped cross section as shown. In the present invention, the hanging jig 2 is in close contact with the upper surface 1a of the new side groove cover 1 as described above. As long as it has the lower surface 2a which can bridge | crosslink between the upper end surfaces 12a and 13a of the left and right side walls 12 and 13, the shape and material of the hanging jig 2 are not particularly limited. The shape may be, for example, a prismatic shape, a polygonal columnar shape, a rod shape having a U-shaped cross section, a rod shape having a I-shaped cross section, or the like. The number of the hanging jigs 2 to be attached is not particularly limited as long as it is plural.

  Preferably, as shown in the figure, the hanging jig 2 is provided with a handle 2c so that the new side groove cover 1 can be easily lifted by human power or a crane.

  If a T-shaped rotation operation portion 3a is provided on the head of the bolt 3, as shown in the figure, the bolt 3 can be easily tightened or loosened without using a tool.

  Next, the process of putting the new side groove cover 1 with the hanging jig 2 attached as described above into a suspended state will be described.

  As shown in FIG. 3, the new side groove lid 1 is suspended toward the opening between the left and right lid receiving portions 14 and 15 of the existing side groove 11. Further, preferably, along the longitudinal direction of the bottom surfaces 14a and 15a of the left and right lid receiving portions 14 and 15, for example, a sealing material 5 such as rubber packing, that is, a material for preventing leakage of the filler 17 described later is continuously provided. Arrange. When there is a damaged portion on the bottom surface 14a / 15a, the damaged portion is disposed so as to cover the damaged portion with the sealing material 5 when the damaged portion is fine, and when the damaged portion is greatly damaged, as shown in FIG. In addition, after repairing the damaged portion 18 with mortar or the like, the sealing material 5 is disposed.

  Or the said sealing material 5 is affixed and arrange | positioned along the longitudinal direction in the location which faces each bottom face 14a * 15a of the said right-and-left cover receiving parts 14 * 15 of the lower surface 1d of the new side groove cover 1. FIG.

  Next, as shown in FIG. 4, the left end of the hanging jig 2 is placed on the upper end surface 12 a of the left side wall 12 of the existing side groove 11, and the right end of the hanging jig 2 is placed on the right side of the existing side groove 11. The suspension jig 2 is placed on the upper end surface 13 a of the wall 13 to bridge the upper end surfaces 12 a and 13 a of the left and right side walls 12 and 13 of the existing side groove 11.

  Then, the new side groove cover 1 is placed on the left and right lid receiving parts 14 while the upper surface 1a of the new side groove cover 1 and the upper end surfaces 12a and 13a of the left and right side walls 12 and 13 are flush with each other by the bridged hanging jig 2. It suspends and supports between 15 rising surfaces 14b and 15b. Therefore, even if the left and right lid receiving portions 14 and 15 are damaged, if the left and right side wall upper end surfaces 12a and 13a are healthy, the new side groove lid 1 is appropriately suspended and the level is adjusted easily and appropriately. it can.

  At this time, the sealing material 5 is preferably sandwiched between the bottom surfaces 14 a and 15 a of the left and right lid receiving portions 14 and 15 and the lower surface 1 d of the new side groove lid 1 to be in a compressed state. It effectively seals between the bottom surfaces 14a and 15a of the part and the lower surface 1d of the new side groove lid 1. In the present invention, the sealing material 5 is not compressed as described above, that is, the upper surface of the sealing material 5 and the newly installed side groove lid lower surface 1d or the lower surface of the sealing material 5 and the lid receiving portion bottom surfaces 14a and 15a are lightly touched. In the case of the degree, it is not excluded that the upper surface of the sealing material 5 and the newly-installed side groove lid lower surface 1d or the lower surface of the sealing material 5 and the lid receiving portion bottom surfaces 14a and 15a face each other with a slight distance of less than 1 mm. The thickness of the sealing material 5 is adjusted as appropriate to perform a sealing operation according to the site.

  Next, the step of filling the filler 17 will be described. As shown in FIG. 5, the process is defined between the left end surface 1 b of the new side groove lid 1 in the suspended state and the rising surface 14 b of the left lid receiving portion 14. The space and the space defined between the right end surface 1c of the newly installed side groove cover 1 and the rising surface 15b of the right cover receiving portion 15 are filled with the filler 17, and the new side groove cover 1 is fixed.

  Each of the spaces is an elongated space extending in the longitudinal direction of the existing side groove 11 and is filled with the filler 17 along the longitudinal direction of the space. If the rising surfaces 14b and 15b of the left and right lid receiving portions 14 and 15 of the existing side groove 11 are damaged such as chipping or cracking, the damaged portions are simultaneously filled with the filler 17 and repaired.

  As the filler 17, for example, ordinary mortar or non-shrink mortar is used, and preferably fast-curing non-shrink mortar is used. According to the repairing method according to the present invention, the site can be opened immediately if the filler 17 filling the elongated space is cured.

  As described above, even if there is a slight gap between the lower surface 1d of the new side groove lid 1 and the upper surface of the sealing material 5 or between the lid receiving portion bottom surfaces 14a and 15a and the lower surface of the sealing material 5, the distance is 1 mm. The filler 17 does not leak into the existing side groove 11 from the interval.

  FIG. 6 is an explanatory diagram of this process when the upper end surface 13a of the right side wall 13 of the existing side groove 11 is damaged. In such a case, the level is adjusted by driving the wedge 6 between the damaged upper end surface 16 and the lower surface 2a of the right end portion of the hanging jig 2 to raise the new side groove lid 1. The same applies to the case where both the upper end surface 12a of the left side wall 12 of the existing side groove 11, the upper end surface 12a of the left side wall 12, and the upper end surface 13a of the right side wall 13 are damaged. As described above, when the bottom surfaces 14a and 15a of the lid receiving portions 14 and 15 are greatly damaged, the damaged portion 18 is repaired with a mortar or the like as shown in FIG. The material 5 is disposed.

  Finally, as shown in FIG. 7, if all the hanging jigs 2 and the bolts 3 fixing the hanging jigs 2 are removed, the upper surface 1a of the new side groove cover 1 and the left and right side walls 12 of the existing side grooves 11 are removed. The new side groove cover 1 is disposed in a state where the upper end surfaces 12a and 13a of the 13 are flush with each other, and the repair work is completed. In addition, the bolt hole 1e formed in the upper surface 1a of the new side groove lid 1 is closed with a filler or the like as necessary. Or it is closed with a cap having a phosphorescent function or a reflection function.

  As described above, in the repair method according to the present invention, the new side groove lid 1 is supported by being suspended by the hanging jig 2 that bridges between the upper end surfaces 12a and 13a of the left and right side walls 12 and 13 of the existing side groove 11. The repair work can be performed while adjusting the level of the newly installed side groove cover 1 easily and appropriately.

  Even if either or both of the left and right lid receiving portions 14 and 15 of the existing side groove 11 are damaged, if the left and right side wall upper ends 12a and 13a are healthy, the left and right lid receiving portions 14 and 15 are repaired regardless of the damaged state. Work can be done.

  Even if one or both of the left and right side wall upper end faces 12a and 13a are damaged, the level adjustment of the new side groove cover 1 is performed from the upper surface 1a side of the new side groove cover 1, that is, the side exposed to the outside. Can be repaired properly.

DESCRIPTION OF SYMBOLS 1 ... New side groove cover, 1 '... Secondary cover, 1a ... Upper surface, 1b ... Left end surface, 1c ... Right end surface, 1d ... Lower surface, 1e ... Bolt hole, 2 ... Hanging jig, 2a ... Lower surface, 2b ... Through Hole, 2c ... grip, 3 ... bolt, 3a ... rotation operation part, 4 ... invert hanger, 5 ... sealing material, 6 ... wedge, 7 ... slot for collecting water, 8 ... projection, 9 ... small groove, 10 ... opening 11 ... Existing side groove, 12 ... Left side wall, 12a ... Upper end surface, 13 ... Right side wall, 13a ... Upper end surface, 14 ... Left lid receiving portion, 14a ... Bottom surface, 14b ... Rising surface, 15 ... Right lid receiving portion, 15a ... bottom surface, 15b ... rise surface, 16 ... broken upper end surface, 17 ... filler, 18 ... damaged portion on the bottom surface of the lid receiving portion.

Claims (4)

A opposite the left side wall and refurbishment method gutters lid supported by left cover receiving portion and a right lid receiving portion formed by the fall cross the respective upper inside of the right side wall of the existing gutter, the following A to F Renovation method of gutter lid including process.
A: Remove the existing side groove lid,
B: Prepare a new side groove cover that is thinner and narrower than the above existing side groove cover,
C: A plurality of suspension jigs that bridge between the upper end surfaces of the opposing left and right side walls of the existing side groove are attached to the upper surface of the new side groove cover at intervals along the longitudinal direction.
D: Each hanging jig is fixed and attached in a state where the lower surface of each hanging jig is in close contact with the upper surface of the new side groove cover.
E : The lower surface of the left end portion of each hanging jig is placed on the upper end surface of the left side wall of the existing side groove, and the lower surface of the right end portion of the hanging jig is placed on the upper end surface of the right side wall of the existing side groove. The new side groove cover is placed while the upper surface of the new side groove cover is flush with the upper end surface of the left and right side walls by bridging the suspension jigs between the upper end surfaces of the left and right side walls of the existing side groove. Is supported by hanging between the rising surfaces of the left and right lid holders,
F : A space defined between the left end surface of the suspended new side groove lid and the rising surface of the left lid receiving portion and a space defined between the right end surface of the new side groove lid and the rising surface of the right lid receiving portion. The space to be filled is filled with a filler, and the new side groove cover is fixed.   The filling material is filled by placing a sealing material between the bottom surface of each of the left and right lid receiving portions of the existing side groove and the bottom surface of the new side groove cover facing the bottom surface. Repair method for gutter lid.   3. The side groove cover according to claim 1, wherein a bolt hole is formed on an upper surface of the new side groove cover, and the suspension jig is attached by a bolt screwed into the bolt hole. Renovation method.   If the left side wall of the existing side groove and / or the upper end surface of the right side wall is damaged, a wedge is driven between the damaged upper end surface and the lower end surface of the hanging jig. The method for repairing a gutter lid according to any one of claims 1 to 3, wherein the level of the lid is adjusted.

Images