JP6925036B2 - Interpolation material for gutter repair and gutter repair method - Google Patents

Description

The present invention relates to a repairing interpolation material and a method for repairing a gutter used for repairing a gutter having a water channel and a slit-shaped communication passage extending from the upper part of the water channel to the ground.

In the gutters provided on the shoulders of expressways, in order to avoid the problem of the lid scattering, a lid using a concrete block having a water channel having a circular or oval cross section and a slit-shaped communication passage is used. No gutters are widely used. This gutter is installed in a place where the vehicle does not originally pass, but if the vehicle passes by for some reason, the load may damage the upper part where the continuous passage is formed and collapse. In addition, the aging of expressways has progressed, and the waterway demarcation surface that defines the waterway and the communication passage demarcation surface that defines the communication passage are likely to come off.

When repairing a gutter whose upper part has collapsed or an aged gutter, if a large-scale construction is carried out by digging up a gutter over a wide area and recreating a new waterway, the road will have to be blocked for a long time. Is big. In addition, first-aid measures such as covering the collapsed part with a lid may be taken, but there is a risk that the lid will scatter when the car gets on. For this reason, a method for repairing gutters that does not require large-scale construction and does not require a lid that may scatter has been proposed (see, for example, Patent Document 1 and the like).

In the gutter repair method described in Patent Document 1, first, a rehabilitation pipe made of a polyvinyl chloride pipe or the like is inserted into a water channel, and a frame member having a bottom plate is accommodated in a continuous passage. Next, the rehabilitation pipe inserted into the water channel and the frame member arranged in the connecting passage are joined with screws, and then the top (upper side) of the rehabilitation pipe and the bottom plate of the frame member are cut off with a jigsaw or the like. As a result, a slit is formed at the top of the rehabilitation pipe and the bottom of the frame member is opened, and a new water channel formed by the rehabilitation pipe and a new communication passage formed by the frame member communicate with each other to form a gutter. It will be repaired. According to the repair method described in Patent Document 1, the gutter can be repaired without requiring a lid that may scatter and without performing a large-scale work such as digging up over a wide area.

Japanese Unexamined Patent Publication No. 2017-166120

However, in the repair method described in Patent Document 1, the work of joining the rehabilitation pipe and the frame member or cutting the top of the rehabilitation pipe and the bottom plate of the frame member with a jigsaw or the like at the site such as the shoulder of an expressway. Such work is required. Although it is not a large-scale construction, it may be necessary to block the road or regulate lanes when implementing the repair method on expressways, etc. Needless to say, reduce the work on site as much as possible. It is desirable to shorten the construction period as much as possible.

In view of the above circumstances, an object of the present invention is to provide an interpolation material for repairing a gutter and a method for repairing a gutter, which can reduce the work in the field.

The gutter repair interpolation material of the present invention that solves the above object is a repair interpolation material that is inserted into a gutter having a water channel and a slit-shaped communication passage extending from the upper part of the water channel to the ground.
A main body having a slit corresponding to the connecting passage and being inserted into the water channel,
The main body is provided with a pair of rising portions that are erected on both sides of the slit and inserted into the continuous passage.
When the main body is inserted into the water channel, the main body forms a new water channel inside the water channel defining surface that defines the water channel.
When inserted into the communication passage, the pair of rising portions form a new communication passage inside the pair of communication passage defining surfaces that define the communication passage.

Here, the repair interpolation material may be integrally formed of a metallic material or a resin material, or the main body portion and the rising portion are formed of the metallic material or the resin material, respectively. , It may be integrated in a factory or the like. Further, the repair interpolation material may be one in which a plurality of components including the main body portion and the rising portion are connected in the extending direction and integrated.

Further, the gutter may be a circular gutter having a circular water channel or an oval gutter having an oval water channel.

Furthermore, the main body portion may cover the water channel demarcating surface when inserted into the water channel, and the pair of rising portions may cover the water channel demarcating surface when inserted into the water channel. It may cover each of the passage defining surfaces.

Furthermore, the water channel demarcation surface and the continuous passage demarcation surface may be partially or wholly damaged or removed.

The repair interpolation material of the present invention includes the main body portion having the slit and the pair of rising portions of the main body portion which are erected on both sides of the slit. Therefore, when the repair interpolation material of the present invention is inserted into the gutter, the new water channel is formed by the main body portion, and the new communication passage is formed by the pair of rising portions. As a result, the work of joining the main body portion and the pair of rising portions and the work of cutting off a part of the main body portion are not required at the site, and the work at the site can be reduced.

Further, in the inner surface for repairing a gutter of the present invention, the main body portion has a reinforcing rib protruding in a direction orthogonal to the direction in which the new water channel extends on the inner surface defining the new water channel. It may be.

Further, in the interpolation material for repairing a gutter of the present invention, the new interpolating passage is provided at a predetermined interval in the extending direction, and has a connecting rib for connecting the pair of rising portions. May be good.

Here, the connecting rib may be integrally formed with the pair of rising portions, or may be detachable from the pair of rising portions.

If the embodiment having the reinforcing ribs and the connecting ribs is adopted, the strength against a load or the like when the vehicle passes is improved. As a result, for example, it is possible to use a material that is lightweight but weak in strength, and to reduce the wall thickness.

Furthermore, in the interpolation material for repairing the gutter of the present invention, the metal structure including the main body portion and the rising portion and integrally formed of the metallic material, and the main body portion and the rising portion are provided and made of resin. A resin structure integrally formed of a material may be connected and integrated in the extending direction.

Here, the extending direction means a direction in which the new waterway extends and a direction in which the new communication passage extends.

If a configuration is adopted in which the metal structure and the resin structure are connected and integrated, for example, as compared with the case where the entire repair interpolation material is made of a metallic material with an emphasis on strength, It is possible to reduce the weight while suppressing the decrease in strength. Further, even if the metal structure is integrally formed of, for example, a casting, the mold size can be reduced and the cost can be reduced as compared with the case where the entire repair interpolation material is integrally formed of a casting.

The gutter repair method of the present invention for solving the above object is a gutter repair method for repairing a gutter having a water channel and a slit-shaped communication passage extending from the upper part of the water channel to the ground.
A main body portion having a slit corresponding to the continuous passage and being inserted into the water channel, and a pair of rising portions of the main body portion that are erected on both sides of the slit and inserted into the continuous passage. When inserted into the side groove, the main body forms a new water channel inside the water channel defining surface that defines the water channel, and the pair of rising portions defines a pair of passages. A preparatory process to prepare a repair insert to form a new passage inside the connecting passage demarcation surface, and
The insertion process of inserting the repair interpolation material prepared in the preparation process into the gutter, and the insertion process.
It is characterized by having a filling step of filling the damaged portion of the gutter with a filler.

Here, the insertion step may be a step of inserting the repair interpolation material into the gutter from the water collecting basin to which the gutter is connected.

In addition, an opening forming step of removing the periphery of the communication passage by excavation or the like to form an opening into which the repair interpolation material is inserted, and a second filling step of filling the portion removed by the opening forming step with the filler. The insertion step may be a step of inserting the repair interpolation material into the side groove from the opening formed by the opening forming step.

Further, in the preparation step, the metal repair interpolation material and the resin repair interpolation material are prepared, and in the insertion step, the metal repair interpolation material and the resin are prepared. It may be a step of alternately inserting the manufacturing interpolation material for repair into the side groove.

According to the gutter repair method of the present invention, the work of joining the main body portion and the pair of rising portions and the work of cutting off a part of the main body portion are not required at the site, and the work at the site is eliminated. Can be reduced.

According to the present invention, it is possible to provide an interpolation material for repairing a gutter and a method for repairing a gutter, which can reduce the work in the field.

It is sectional drawing which shows the road shoulder part of the highway to which the interpolation material for repairing a gutter of this invention, and the repair method of a gutter of this invention is applied. (A) is a front view showing the gutter repair interpolation material of the present invention, and (b) is a perspective view of the gutter repair interpolation material shown in (a) viewed from diagonally above right. be. (A) is a plan view showing a part of a road shoulder of an expressway in which the gutter repair method of the present invention is carried out, and (b) is a sectional view taken along line AA of (a). It is a flowchart which shows an example of the process in the repair method of the gutter of this invention. FIG. 4A is a cross-sectional view taken along the line BB of FIG. 4A, showing the state of the insertion process. (B) is a cross-sectional view taken along the line CC of (a). It is a perspective view of the trolley which moves a repair interpolation material inserted in a gutter. (A) is a front view of the repairing interpolation material of the first modified example provided with the reinforcing rib, and (b) is a side view of (a). (A) is a front view of the repairing interpolation material of the second modified example provided with the connecting rib, and (b) is a side view of (a). (A) is a front view of the repairing interpolation material of the third modified example provided with the detachable detachable connecting rib, and (b) is the detachable connecting rib of (a) centered on the axis in the vertical direction. It is a figure which shows the state which was rotated 90 degrees and turned sideways when viewed from the front. It is a perspective view of the interpolation material for repair of the 4th modification.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, a mode of repairing a gutter provided on the shoulder of an expressway will be described as an example. The present invention can also be applied to the repair of gutters provided on general roads and the repair of gutters provided in parks and the like.

FIG. 1 is a cross-sectional view showing a road shoulder portion of an expressway to which the side groove repair interpolation material of the present invention and the gutter repair method of the present invention are applied. In FIG. 1, the direction orthogonal to the paper surface is the traveling direction of the expressway, and the left-right direction of the figure is the width direction of the expressway. Further, in FIG. 1, the left side is the main line side of the expressway.

As shown in FIG. 1, a gutter 1 is provided along the curb 91 on the shoulder 9 of the expressway. A gutter block 10 made of reinforced concrete is used for the gutter 1 of the present embodiment, and the gutter block 10 having a length of about several meters in the extending direction (direction orthogonal to the paper surface in FIG. 1) is a highway. The gutter 1 is formed by being connected in the traveling direction. In the gutter 1, a water channel W having a circular cross section is formed, which is defined by the water channel defining surface 10a of the gutter block 10. The inner diameter of the water channel defining surface 10a is about 200 mm to 500 mm (for example, 450 mm). Further, in the gutter 1, a slit-shaped communication passage S that is connected to the upper part of the water channel W and reaches the ground from the water channel W is formed. The communication passage S is defined by a pair of communication passage defining surfaces 10b connected to the upper end of the water channel defining surface 10a in the gutter block 10. The distance between the pair of passage defining surfaces 10b in the width direction is about 60 mm to 80 mm (for example, 60 mm). The gutter 1 is not limited to the shape of the water channel W having a circular cross-sectional shape (circular gutter), and may be, for example, an oval-shaped cross-sectional shape of the water channel W (oval-shaped gutter).

Here, the gutter 1 is installed on the road shoulder 9 at a place where the vehicle originally does not pass, but as shown by the alternate long and short dash line, when the vehicle passes over the gutter 1 for some reason, the load causes the side groove 1. The upper portion B of the gutter block 10 may be damaged and collapse. In addition, the aging of the expressway may progress, and the waterway demarcation surface 10a and the continuous passage demarcation surface 10b may be peeled off. The present invention is used for repairing a gutter 1 in which such collapse or peeling has occurred, or as a preventive measure against collapse or the like.

FIG. 2A is a front view showing the gutter repair interpolation material 3 of the present invention, and FIG. 2B shows the gutter repair interpolation material 3 shown in FIG. 2A on the right. It is a perspective view seen from diagonally above. Hereinafter, the interpolation material 3 for repairing the gutter may be simply referred to as the interpolation material 3 for repair. Further, the left-right direction in FIG. 2A is referred to as the width direction of the repair interpolation material 3, and the direction orthogonal to the paper surface in FIG. 2A, that is, diagonally downward to the left and right in FIG. 2B. The direction connecting the diagonally upper portion will be referred to as the extending direction of the repair interpolation material 3.

As shown in FIGS. 2 (a) and 2 (b), the repair interpolation material 3 has a so-called Randold annular main body 31 and a main body 31 in which a slit is formed in the upper portion of the cylinder in a front view. It is provided with a pair of rising portions 32 standing upright at the ends 311 on both sides of the slit. The repair interpolation material 3 may be one in which the main body portion 31 and the pair of rising portions 32 are integrally formed, or the formed main body portion 31 and the pair of rising portions 32 are welded or bonded to each other. It may be integrated. Further, the repair interpolation material 3 may be formed of a metallic material such as a casting of ductile cast iron, or may be formed of a resin material. Examples of the material formed of the resin material include a glass mat impregnated with a thermosetting resin such as an epoxy resin and heat-cured, and a glass mat formed of a vinyl chloride resin.

A space defined by the inner peripheral surface 31a is formed inside the main body 31. This space is a space that forms a new water channel when the main body 31 is inserted into the water channel W of the gutter 1 shown in FIG. 1 by a gutter repair method described later. In FIG. 2 (a), the new water channel is formed. It is indicated by the code of W'. Further, a space defined (sandwiched) by the inner surface 32a is formed inside the pair of rising portions 32. This space is a space that forms a new communication passage when the pair of rising portions 32 are inserted into the communication passage S of the side groove 1 shown in FIG. 1 by the gutter repair method. It is indicated by the code of the new passage S'.

Next, the gutter repair method of the present invention will be described.

FIG. 3A is a plan view showing a part of a road shoulder of an expressway in which the gutter repair method of the present invention is carried out. In FIG. 3A, the left-right direction in the figure is the traveling direction of the expressway. Further, in order to simplify the drawing, in FIG. 3A, only the side groove 1 and the water collecting basin 8 are shown, and the middle portion of the side groove 1 between the water collecting basins 8 is omitted. FIG. 3B is a cross-sectional view taken along the line AA of FIG. 3A.

As shown in FIGS. 3A and 3B, a part of the upper portion of the gutter block 10 has collapsed in the gutter 1, and a collapsed portion 10c is generated. The collapsed portion 10c is generated by the collapse of the portion corresponding to the upper portion B of the gutter block 10 shown in FIG.

The water collecting basin 8 is provided at intervals of several tens of meters to several hundreds of meters of the gutter 1, and a receiving frame 81 having an opening 81b (see FIG. 5A) formed on the upper surface thereof and an opening 81b. It has a grating 82 that closes the gap. Further, the receiving frame 81 has a pair of slit defining surfaces 81a corresponding to the connecting passage defining surface 10b of the gutter block 10, and a slit corresponding to the connecting passage S is formed.

FIG. 4 is a flowchart showing an example of a process in the gutter repair method of the present invention.

As shown in FIG. 4, in the gutter repair method, a preparatory step is first carried out (step 1). In this preparatory step, the repair interpolation material 3 shown in FIG. 2 is prepared. The repair interpolation material 3 of the present embodiment is made of ductile cast iron integrally cast using a predetermined mold.

Subsequently, the debris of the gutter block 10 that has collapsed in the water channel W is removed, the inside of the water channel W is cleaned, and the like, and then the insertion step shown in FIG. 4 is performed (step 2).

5 (a) is a cross-sectional view taken along the line BB of FIG. 4 (a), showing a state of the insertion process.

As shown in FIG. 5 (a), of the water collecting basins 8 on both sides of the gutter block 10 where the collapsed portion 10c is generated, one of the water collecting basins 8 (on the left side in the figure) is inserted through the opening 81b for repair. Insert the material 3 downward. Next, the repair interpolation material 3 inserted in the water collecting basin 8 is inserted laterally (to the right in the figure) into the gutter block 10 connected to the water collecting basin 8. Specifically, the rising portion 32 of the repair interpolation material 3 is inserted into the continuous passage S through a slit formed between the pair of slit defining surfaces 81a of the water collecting basin 8 to form the repair interpolation material 3. The main body 31 is inserted into the water channel W. If the water collecting basin 8 is not formed with a slit, the water collecting basin 8 may be shaved to form a slit.

While repeating these operations, the repair interpolation material 3 is inserted over the entire length between the catchment basins 8 while being pulled by the winch 7 arranged near the catchment basin 8 on the other side (on the right side in the figure). .. Note that FIG. 5A shows a state in which three repair interpolation materials 3 are inserted into the gutter block 10.

Next, the filling step shown in FIG. 4 is carried out (step 3). In this filling step, mortar as a filler is filled in the damaged portion (collapsed portion).

FIG. 5B is a cross-sectional view taken along the line CC of FIG. 5A. In addition, FIG. 5B shows a state after the filling step is carried out and the mortar is filled.

As shown in FIG. 5B, mortar M is filled between the collapsed portion 10c and the repair interpolation material 3. When the filled mortar M is solidified, the gutter repair method is completed. Further, the water channel defining surface 10a of the gutter block 10 is covered with the main body portion 31, and a new water channel W'defined by the inner peripheral surface 31a of the main body portion 31 is formed. Further, the pair of connecting passage defining surfaces 10b of the gutter block 10 are each covered with the pair of rising portions 32, and the new connecting passage S'defined by the inner surfaces 32a of the pair of rising portions 32 is formed. That is, when the main body portion 31 is inserted into the water channel W, a new water channel (new water channel W') is formed inside the water channel defining surface 10a that defines the water channel W, and the pair of rising portions 32 form a new water channel (new water channel W'). When inserted into the communication passage S, a new communication passage (new communication passage S') is formed inside the pair of communication passage defining surfaces 10b that define the communication passage S. As a result, the collapsed portion 10c is repaired, the gutter block 10 is reinforced by the repairing interpolation material 3, and the water channel defining surface 10a and the pair of communication passage defining surfaces 10b are covered. As a result, it is possible to prevent a new collapse of the gutter block 10 and peeling of the water channel demarcation surface 10a and the continuous passage demarcation surface 10b.

If the gutter block 10 collapses in one place, there is a high possibility that the other parts also collapse. For this reason, it is preferable to insert the repair interpolation material 3 over the entire length between the catchment basins 8, but in consideration of first aid or cost, the repair interpolation material 3 is inserted only in the collapsed portion 10c and its surroundings. It is also possible to insert it. In this case, the periphery of the collapsed portion 10c is excavated to form an insertion opening 10d larger than the repair interpolation material 3 as shown by the alternate long and short dash line in FIG. 3A (opening forming step). After the repair interpolation material 3 is inserted from the insertion opening 10d (insertion step), the excavated portion may be filled with mortar (second filling step).

FIG. 6 is a perspective view of the trolley 6 for moving the repair interpolation material inserted in the gutter.

The repair interpolation material 3 may be moved by the winch 7 shown in FIG. 5 (a), but the repair interpolation material 3 may be moved in place of the winch 7 or together with the winch 7 as shown in FIG. A winch 6 may be used. In FIG. 6, the direction connecting the diagonally lower left and the diagonally upper right is the extending direction of the carriage 6 corresponding to the extending direction of the repair interpolation material 3.

As shown in FIG. 6, the carriage 6 includes a base portion 61, four rollers 62, and a pair of pin members 63. The base portion 61 is a rectangular plate material that is long in the extending direction in a plan view. Two rollers 62 are rotatably attached to both sides of the base portion 61 in the width direction. The distance between the rollers 62 attached to the base portion 61 in the width direction is set to be larger than the distance between the pair of communication passage defining surfaces 10b shown in FIG.

The pair of pin members 63 are arranged at the central portion in the width direction of the base portion 61 at intervals in the extending direction. Further, each of the pair of pin members 63 penetrates the base portion 61 in the vertical direction and is rotatably provided with respect to the base portion 61 about the vertical axis as indicated by the arcuate double-headed arrow. There is. A mounting portion 631 for attaching a hook or the like is provided at the upper end portion of the pin member 63, and an engaging portion 632 is provided at the lower end portion. The engaging portion 632 is a semicircular plate material, and by rotating the pin member 63, the posture along the extending direction shown by the solid line in the figure and the posture along the extending direction shown by the alternate long and short dash line in the figure are orthogonal to the extending direction. It can be changed to a posture along the direction of the movement.

The trolley 6 can move the repair interpolation material 3 by engaging the engaging portion 632 with the repair interpolation material 3 inserted into the gutter 1 from the water collecting basin 8. Specifically, first, the roller 62 is placed on the upper surface of the gutter block 10 so as to straddle the communication passage S, and the carriage 6 is arranged in the vicinity of the water collecting basin 8 into which the repair interpolation material 3 is inserted. Next, the repair interpolation material 3 is inserted from the water collecting basin 8 into the gutter 1 so that the lower portion of the pin member 63 is inserted between the inner surfaces 32a of the pair of rising portions 32 in the repair interpolation material 3. insert. Next, the pin member 63 of the carriage 6 is rotated so that the engaging portion 632 is in a posture along a direction orthogonal to the extending direction. As a result, the engaging portion 632 of the pin member 63 engages with the end portions 311 (see FIG. 2) on both sides of the repairing interpolation member 3 that sandwich the slit of the main body portion 31. In this state, by pulling the wire attached to the attachment portion 631 with a winch or the like, the roller 62 rotates and the trolley 6 moves in a predetermined direction, and the repair interpolation material 3 engaged with the trolley 6 is also specified. Can be moved in a direction. After moving the repair interpolation material 3 to a desired location, the pin member 63 is rotated so that the engaging portion 632 is in a posture along the extending direction. As a result, the engagement between the engaging portion 632 and the repair interpolation material 3 is released, and the trolley 6 can be removed from the repair interpolation material 3.

According to the repair interpolation material 3 and the gutter repair method using the repair interpolation material 3 described above, the work of joining the main body 31 and the pair of rising portions 32 and the main body are performed in the field. The work of excising a part of the part 31 or the like becomes unnecessary, and the work at the site can be reduced.

Next, a modified example of the repair interpolation material 3 shown in FIGS. 2 and 5 will be described. In the modification described below, the differences from the embodiments shown in FIGS. 2 and 5 will be mainly described, and the components having the same names as the components in the embodiments shown in FIGS. 2 and 5 will be described. , The description will be given with the reference numerals used so far, and duplicate explanations may be omitted.

When the repair interpolation material 3 is to be thinned, or when a lightweight but weakly strong material such as a resin material is used, the interpolation material 3 can sufficiently withstand the load when the vehicle passes through. It is preferable to adopt a configuration that improves the strength.

FIG. 7A is a front view of the repairing interpolation material of the first modified example provided with the reinforcing ribs, and FIG. 7B is a side view of FIG. 7A.

As shown in FIG. 7A, the repair interpolation material 3 of the first modification projects inward from the inner peripheral surface 31a of the main body 31 (in the direction orthogonal to the direction in which the new water channel W'extends). It has a pair of reinforcing ribs 312. These pair of reinforcing ribs 312 are provided from the end portions 311 on both sides of the slit of the main body portion 31 to the lower portion of the inner peripheral surface 31a of the main body portion 31. Further, as shown in FIG. 7B, a plurality of sets (two sets in the figure) of these pair of reinforcing ribs 312 are provided at intervals in the extending direction of the repair interpolation material 3.

According to the repair interpolation material 3 of this modification, the load applied to the upper portion of the main body 31 when the vehicle passes, which is indicated by the white arrow in FIG. 7A, is indicated by the straight arrow. It is transmitted to the lower portion of the main body 31 by the reinforcing rib 312. Therefore, even if a large load is applied when the vehicle passes through, the upper portion of the main body 31 is prevented from being deformed or damaged, and the gutter block 10 (see FIG. 1) is more reliably collapsed. Can be prevented.

Here, the form of the pair of reinforcing ribs 312 is not particularly limited, but in order to effectively prevent the upper portion B of the gutter block 10 from collapsing as shown in FIG. 1, the main body 31 It is preferable to provide the reinforcing rib 312 from the vicinity of the end portion 311 or the end portion 311 to the lower portion of the main body portion 31. Further, it is preferable that the lower region of the new water channel W'is open in order to secure the flow of water, as in the repair interpolation material 3 of the first modification.

FIG. 8A is a front view of the repairing interpolation material 3 of the second modified example provided with the connecting rib, and FIG. 8B is a side view of FIG. 8A.

As shown in FIG. 8A, the repair interpolation material 3 of the second modification has a connecting rib 321 that connects a pair of rising portions 32 and also connects a pair of end portions 311 in the main body portion 31. Have. As shown in FIG. 8B, a plurality of (two in the figure) connecting ribs 321 are provided at intervals in the extending direction of the repair interpolation material 3 (extending direction of the new continuous passage S'). Has been

According to this modification, the connecting rib 321 partially forms the repair interpolation material 3 in a tubular shape. Therefore, even if a large load (white arrow) is applied when the vehicle passes through, the upper portion of the main body 31 is prevented from being deformed or damaged, and the gutter block 10 (see FIG. 1) is prevented from being deformed or damaged. It is possible to prevent collapse and the like. In addition, there is nothing blocking the flow of water in the new channel W'. If the strength of the repair interpolation material 3 can be ensured, the connecting ribs 321 may be used to connect only the pair of rising portions 32.

FIG. 9A is a front view of the repairing interpolation material of the third modified example provided with the removable connecting ribs. FIG. 9B is a diagram showing a state in which the detachable connecting rib of FIG. 9A is rotated 90 degrees around a vertical axis and turned sideways when viewed from the front.

As shown by enlarging the portion surrounded by the alternate long and short dash line in FIG. 9 (a), the repair interpolation material 3 of the third modified example has the inner surface 32a of the pair of rising portions 32 as the inner surface 32a goes downward. It is formed of tapered inclined surfaces with narrow intervals. Further, a detachable connecting rib 322 is arranged between the pair of rising portions 32. A plurality of the detachable connecting ribs 322 are attached at intervals in the extending direction of the repair interpolation material 3 (extending direction of the new passage S').

FIG. 9B shows a state in which the detachable connecting rib 322 is viewed from the side, and the detachable connecting rib 322 has a plate shape thinner than the distance between the pair of rising portions 32 when viewed from the side. .. Further, in the detachable connecting rib 322 seen from the front shown in FIG. 9A, a fitting portion 3221, a connecting portion 3222, and a retaining portion 3223 are provided in the order of description from the upper side to the lower side. The side surface of the fitting portion 3221 corresponds to the inner surface 32a of the pair of rising portions 32, and is formed of a tapered inclined surface that fits into the inner surface 32a when inserted from above. In a state where the fitting portion 3221 of the detachable connecting rib 322 is fitted to the inner surface 32a of the pair of rising portions 32, does the upper end of the detachable connecting rib 322 have the same height as the upper ends of the pair of rising portions 32? , Or is set to be slightly lower.

The connecting portion 3222 is a portion that connects the fitting portion 3221 and the retaining portion 3223, and has a tapered shape that is inclined inward from the inner surface 32a so as to create a gap between the inner surfaces 32a of the pair of rising portions 32. It is formed on an inclined surface. The retaining portion 3223 is a wide portion that is wider in the width direction than the distance between the end portions 311 on both sides of the main body portion 31.

As shown by the solid line in FIG. 9A, in the detachable connecting rib 322 attached between the pair of rising portions 32, the side surface of the fitting portion 3221 is fitted to the inner surface 32a of the pair of rising portions 32. Therefore, as in the second modification shown in FIG. 8, the repair interpolation material 3 is partially formed in a tubular shape, and the strength of the repair interpolation material 3 is improved. Further, as shown by the alternate long and short dash line, even if the detachable connecting rib 322 tries to rise, the retaining portion 3223 is caught on the end portions 311 on both sides of the main body portion 31 and the inner peripheral surface 31a around the main body portion 31, so that the detachable portion 3223 is detached. It is prevented that the connecting rib 322 is inadvertently pulled out.

To remove the detachable connecting rib 322 from the repair interpolation material 3, as shown in FIG. 9B, rotate it 90 degrees around the vertical axis and pull it upward in a sideways posture. good. According to this modification, since the detachable connecting rib 322 can be removed, a cleaning tool is inserted into the new water channel W'from the new passage S'(see FIG. 5B), and the cleaning tool is extended in the extending direction. Can be moved to and the new channel W'can be cleaned. Further, a cleaning tool for performing such cleaning (see, for example, Japanese Patent Application Laid-Open No. 2017-155502) and the like can also be used.

FIG. 10 is a perspective view of the repair interpolation material 3 of the fourth modified example. In FIG. 10, the direction connecting the diagonally lower left and the diagonally upper right is the extending direction.

As shown in FIG. 10, the repair interpolation material 3 of this modification is integrated by connecting one or more metal constituents 3A and one or more resin constituents 3B in the extending direction. It is an interpolated one. Specifically, the resin component 3B is arranged between each of the three metal components 3A. The metal structure 3A and the resin structure 3B are connected by, for example, adhesion. The connecting bar 33 indicated by the alternate long and short dash line may be used, and the connecting bar 33 and each of the three metal constituents 3A may be integrated by welding or the like.

The metal structure 3A includes a main body portion 31 and a pair of rising portions 32, and is an integral one made of, for example, ductile cast iron. The resin structure 3B includes a main body portion 31 and a pair of rising portions 32, and is integrally formed by, for example, impregnating a glass mat with an epoxy resin and thermosetting it.

According to this modification, even in the embodiment in which the metal structure 3A is integrally formed by casting, the mold used for casting is made smaller and the cost is reduced as compared with the embodiment in which the entire repair interpolation material 3 is integrally formed by casting. It can be suppressed. Further, by sandwiching the resin structure 3B between the metal components 3A, it is possible to reduce the weight of the repair interpolation material 3 while suppressing the decrease in strength.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims. Further, even if the constituent requirements are included only in the above-described embodiment or any of the modified examples, the constituent requirements may be applied to the embodiment or other modified examples. For example, in the repair interpolation material 3 of the fourth modification shown in FIG. 10, the reinforcing rib 312 of the first modification shown in FIG. 7 is provided on either the metal structure 3A or the resin structure 3B. The connecting rib 321 of the second modification shown in 8 or the detachable connecting rib 322 of the third modification shown in FIG. 9 may be provided.

1 Gutter 10 Side groove block 10a Waterway demarcation surface 10b Continuous passage demarcation surface 10c Collapsed part 3 Interpolation material for repair 31 Main body 31a Inner peripheral surface 312 Reinforcing rib 32 Rising part 32a Inner surface 321 Connecting rib 322 Detachable connecting rib 3A Metal structure 3B resin structure S continuous passage S'new continuous passage (new continuous passage)
W Canal W'New Canal (New Canal)

Claims (5)

An interpolation material for repairing a gutter inserted into a gutter having a water channel and a slit-shaped communication passage reaching the ground from the upper part of the water channel.
A main body having a slit corresponding to the connecting passage and being inserted into the water channel,
The main body is provided with a pair of rising portions that are erected on both sides of the slit and inserted into the continuous passage.
When the main body is inserted into the water channel, the main body forms a new water channel inside the water channel defining surface that defines the water channel.
The pair of rising portions for repairing a gutter, which, when inserted into the communication passage, form a new communication passage inside the pair of communication passage defining surfaces that define the communication passage. Interpolation material. The gutter according to claim 1, wherein the main body portion has a reinforcing rib protruding in a direction orthogonal to the direction in which the new water channel extends on the inner surface defining the new water channel. Interpolation material for repair. The repair of a gutter according to claim 1 or 2, wherein the new communication passage is provided at a predetermined interval in a extending direction and has a connecting rib for connecting the pair of rising portions. Interpolation material. A metal structure having the main body portion and the rising portion and integrally formed of a metallic material, and a resin structure having the main body portion and the rising portion and integrally formed of a resin material are provided in an extending direction. The interpolator for repairing a gutter according to any one of claims 1 to 3, wherein the metal is integrated with the metal. A gutter repair method for repairing a gutter having a water channel and a slit-shaped communication passage reaching the ground from the upper part of the water channel.
A main body portion having a slit corresponding to the continuous passage and being inserted into the water channel, and a pair of rising portions of the main body portion that are erected on both sides of the slit and inserted into the continuous passage. When inserted into the side groove, the main body forms a new water channel inside the water channel defining surface that defines the water channel, and the pair of rising portions defines a pair of passages. A preparatory process to prepare a repair insert to form a new passage inside the connecting passage demarcation surface, and
The insertion process of inserting the repair interpolation material prepared in the preparation process into the gutter, and the insertion process.
A method for repairing a gutter, which comprises a filling step of filling a damaged portion of the gutter with a filler.

Images