JP3497086B2 - Water channel formation prevention gutter tube structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gutter pipe structure for preventing water channel formation, and more specifically, a water channel (drain passage) is formed in the vicinity of a gutter pipe buried in a bank such as a river or a pond. The present invention relates to a water channel formation preventing gutter pipe structure for preventing water from forming.

[0002]

2. Description of the Related Art Conventionally, a relatively large gutter pipe (or a flexible drain pipe) is buried in a bank of a river as a means for guiding the water of the river to another place. There is. This is sometimes provided to control the amount of water when a river rises and to prevent bank breakage, but it is also used as a means of drawing water from the river to the water purification plant. However, since the gutter pipe is buried in the embankment, water channels (water passages, drainage passages) may be formed not only inside the gutter pipe but also near the outside. Since the soil near the gutter pipe was scraped off, the gutter pipe could be damaged by subsidence or, in the worst case, the dike could be depressed.

Therefore, as a means for solving the above-mentioned problem, there is one in which a water blocking wall for preventing the formation of water channels is attached to the outer circumference of the gutter pipe buried in the ground. But,
Depending on the material of the impermeable wall and the method of attaching it to the gutter pipe, the impermeable wall cannot follow when the ground subsidence occurs and the positional relationship between the gutter pipe and the impermeable wall becomes unreasonable. Sometimes caused damage to the.

As a countermeasure against such ground subsidence, there is a water flow prevention structure around a gutter pipe disclosed in JP-A-8-68031. The water channel prevention structure around the gutter pipe includes a gutter pipe, an attachment ring body that is movable in the axial direction of the gutter pipe, an elastic body provided on the outer peripheral portion of the attachment ring body, and an elastic body of the elastic body. Mainly composed of an impermeable wall attached to the outer peripheral portion, an elastic body is interposed between the mounting ring body and the impermeable wall, and the ring body is movable in the axial direction and elastic body. By making use of the flexibility of, the impermeable wall is made to follow the subsidence of the ground, and the positional relationship with the gutter pipe is prevented from becoming unreasonable.

As a solution to the same problem,
The structure for preventing water flow around the gutter pipe disclosed in JP-A-8-144248 can be mentioned. This water channel prevention structure around the gutter pipe is mainly composed of a gutter pipe, an attachment ring body that is movable in the axial direction of the gutter pipe, and an impermeable wall made of an elastic body. In addition to the movement of the body in the axial direction, the impermeable wall itself is made of an elastic body so that the impermeable wall can follow the subsidence of the ground and the positional relationship with the gutter pipe can be prevented from becoming unreasonable. It is a thing.

However, in order to actually construct such a water channel formation preventing gutter pipe structure, it is necessary to insert the gutter pipe into the through hole formed in the water shield wall, and further, to attach the mounting ring. It was necessary to move along the outer circumference of the gutter pipe in the axial direction and fix it at a desired position, which required a great deal of labor and was extremely poor in workability. In addition, as another problem, due to the flexibility of the impermeable wall made of elastic material,
There is a problem that shape retention (independence) during construction is difficult,
In practice, a rigid frame had to be attached to the outer peripheral edge of the impermeable wall made of an elastic body. Moreover, as another problem, the elastic body used for the impermeable wall is generally expensive, has a heavier weight than a plastic material such as polyethylene, and has a peculiar curl because it is rolled and carried during transportation. It was also pointed out that it was inferior in economic efficiency, transportability, and workability in that it remained.

[0007]

According to the present invention, there is provided a gutter pipe buried in the ground, a band-shaped elastic body, and a pair of dividing wall parts having a cutout portion having a shape corresponding to the outer shape of the gutter pipe. It also has a shape that corresponds to the outer shape of the gutter pipe, and it is placed on the front and back of the dividing wall.
Each of them has a pair of frames for fixing the dividing wall portion to the gutter pipe and an L-shaped cross section, and one piece of the frame body is the dividing wall portion.
It is attached to the front and back of the dividing side part respectively, and these dividing sides
It consists of two pairs of joining pieces for joining partial comrades.
After the pair of partition walls and each frame body, the elastic body is wound around the gutter pipe,
It is placed in that area, and then the other piece of the joint is straightened.
Tighten via contact or plate-like elastic piece
By pushing the gutter pipe in the opposite direction through the elastic body,
( EN) Provided is a water pipe formation preventing trough structure which is mounted . That is, according to the present invention, by constructing a member corresponding to a conventional impermeable wall with a pair of divided wall portions, it is not necessary to insert a gutter pipe into a through hole portion of the impermeable wall, unlike the conventional construction. This makes it possible to significantly shorten the period. Moreover, since the manufacturing apparatus for the water-impervious wall can be downsized by changing the simple structure, it is possible to reduce the manufacturing cost in addition to the construction cost. In addition, the frame is attached to the front and back of the dividing wall, and L-shaped
Attach one piece of the joint piece of the cross section to the divided side of the dividing wall.
Wear it, tighten the other piece, and gutter in this tightening direction.
By pressing the pipe through the elastic body,
The part and each frame are attached to the gutter pipe. Therefore, the frame body,
Tighten even if there are variations in the dimensions of the elastic body, gutter pipe, etc.
Ensures that water will stop around the gutter pipe by adjusting the strength
Can be done.

In the present invention, the formation of water channels must be prevented near the gutter pipe, specifically, at a position close to or slightly apart from the outer circumference of the gutter pipe. In addition, this position is a position where a dike or the like in which the gutter pipe is buried may collapse or sink when a water channel is formed. For example, from the outer surface of the gutter pipe to about 1 to 3 m. .

First, the construction of the water channel formation preventing gutter pipe structure according to the present invention will be described. The water channel formation preventing gutter pipe structure according to the present invention includes a gutter pipe buried in the ground, a band-shaped elastic body, and a pair of dividing wall portions having a cutout portion having a shape corresponding to the outer shape of the gutter pipe, Similarly, it has a shape corresponding to the outer shape of the gutter pipe, is attached to the dividing wall portion, and is composed of a frame body for fixing the dividing wall portion to the gutter pipe, but more specifically,
In addition to the gutter pipe, the elastic body, the pair of dividing wall portions, and the frame body, in order to join the dividing side portions of the dividing wall portion in the field, it is mainly configured with a joining piece attached to each dividing side portion. It is a thing. Hereinafter, each member will be described in detail.

First of all, the shape of the gutter tube is not particularly limited, but a tube having a circular cross section, an elliptical shape, a square shape or the like can be mentioned. Specifically, a circular tube is preferable, and a diameter of 500 to 3000 mm, A synthetic resin pipe having a wall thickness of about 20 to 200 mm is more preferable. The material is preferably a hard thermoplastic resin, and more preferably polyethylene (high pressure polyethylene pipe).

Next, the elastic body is in the form of a band having a constant thickness and width, and is provided between the outer circumference of the gutter pipe and a cutout portion of a partition wall portion described later and a frame body mounted in the cutout portion. It is provided to seal the gap between the gutter pipe and the notch and the frame body, but when the ground subsides, its elasticity is utilized to divide the gutter pipe into a pair. There is also an effect that it is possible to absorb the deviation of the positional relationship with the wall portion (impermeable wall) and prevent mechanical strain on both sides. The specific thickness is preferably 1 to 2% of the outer diameter of the gutter pipe in consideration of the deformation of the gutter pipe when buried in the ground,
In the case of a gutter tube with a diameter of 1000 mm or more that is often used in this field, its standard thickness is 20 mm to 30 mm.
It can be mm.

However, the thickness is not limited for the purpose of improving the followability of the pair of partition walls against the ground subsidence as described above, and can be appropriately selected within the range of 5 mm to 100 mm. The width of the elastic body is determined in consideration of the thickness of the dividing wall portion and the size of the frame body described later, but the standard width thereof can be about 160 mm.

Further, examples of the material used for this elastic body include rubbers, that is, natural rubber, synthetic rubber, and thermoplastic elastomer. Specifically, it is preferable to use chloroprene rubber, nitrile rubber, or styrene-butadiene rubber. Furthermore, their natural rubber, synthetic rubber,
A composite obtained by mixing a thermoplastic water-absorbing polymer with a thermoplastic elastomer, such as sodium polyacrylate, a copolymer of acrylic acid and polyvinyl alcohol, a copolymer of acrylic acid and acrylamide, etc. The term "expanded rubber or water-swellable rubber" can also be used. It is preferable to use such a composite as an elastic body because it can be expanded in volume by absorbing water after mounting, thereby further enhancing the sealing effect.

Next, the pair of dividing wall portions will be described. According to the present invention, a pair of dividing wall portions are joined on site to form one impermeable wall. Further, it is preferable that the water impermeable wall in the joined state is substantially rectangular in a front view, and further, a through hole portion having a contour corresponding to the outer shape of the gutter pipe is formed in a substantially central portion thereof. From the viewpoint, it is preferable that a circular through hole is formed.

That is, a portion corresponding to the through hole of the impermeable wall of the pair of divided wall portions in which the impermeable wall is divided into two is formed with a cutout portion which substantially corresponds to the outer shape of the gutter pipe. Specifically, although depending on the thickness of the elastic body described above, it is preferable that each of them is formed in a semi-circular cutout portion having an outer diameter of the gutter tube plus about 20 mm. Then, the frame bodies described later are attached to the semicircular cutout portions, respectively, while the divided side portions of the dividing wall portion (that is, the straight line portions on both sides of the cutout portion) use the joint pieces described below. , Preferably joined to each other via elastic pieces described below as well, 1
It becomes one impermeable wall.

By forming one impermeable wall in this way, the cutout portions of the pair of division wall portions and the frame bodies respectively attached to the cutout portions are wound around the outer peripheral surface of the gutter pipe. A force for pressing the elastic body is generated, and the impermeable wall is attached to the outer circumference of the gutter pipe. Further, as described above, by constructing the impermeable wall with the pair of divided wall portions, a gutter pipe is inserted into the through hole portion of the impermeable wall, which is necessary at the time of construction of the conventional example. It is possible to eliminate the work that requires a lot of labor.

In the water channel formation preventing gutter pipe structure according to the present invention, it is preferable that the dividing direction of the impermeable wall is the vertical direction, but it is not necessarily limited to the vertical direction, and the lateral direction and the water imperviousness are not necessarily limited. The wall may be divided in any direction, such as a diagonal line, that is, an oblique direction. The number of divisions is also preferably two, but may be more.

The material of the pair of partition walls is preferably a hard thermoplastic resin, specifically high density polyethylene, the thickness of which is 20 mm or more, although it is determined by the specific circumstances of the construction site. It is preferably 40 mm. This is because the pair of division wall portions that constitute the water blocking wall of the water channel formation preventing trough structure according to the present invention are required to have two physical properties, that is, appropriate rigidity and appropriate elasticity. Further, the dividing wall portion has both appropriate rigidity and appropriate elasticity, which enables the dividing wall portion to be self-supporting at a desired position during construction of the water channel formation prevention gutter pipe structure, thereby facilitating the construction. In addition, by pressing the pair of partition walls against the gutter pipe through the elastic body described above, it is possible to prevent the gutter pipe from being damaged even if an unreasonable force is applied to the attachment part with the gutter pipe. It becomes.

Further, by using a hard thermoplastic resin,
The material cost can be reduced and the weight can be reduced as compared with the conventional impermeable wall made of iron or rubber. Particularly, the reduction in weight is preferable in terms of simplifying transportation, improving workability and safety during construction, and preventing ground subsidence after construction. In particular, since the conventional rubber impermeable wall is rolled and carried during transportation, it has a curling tendency, which is a major factor that deteriorates workability during construction. Since the pair of partition walls constituting the above are manufactured by the hard thermoplastic resin so as to be self-supporting as described above, workability is not deteriorated in this way.

Next, the frame will be described. In the present invention, the frame body is preferably made of metal. And as the shape, it is required to be a shape corresponding to the outer shape of the gutter pipe, but preferably, it can be divided into a plurality, that is, a shape corresponding to the cutout portion of the dividing wall,
The semicircular shape obtained by dividing the annular frame into two parts is more preferable. The cross section is preferably L-shaped. Then, one surface of the mounting frame having the L-shaped cross section is mounted so as to surround the cutout portions around the cutout portions of the pair of division wall portions. Further, more preferably, the frame is provided on the front and back edges of the cutouts of the pair of partition walls, that is, on both sides. By providing on both sides in this way, it becomes possible to press the elastic body wound around the outer peripheral surface of the gutter pipe from two directions of the front and back of the dividing wall part, and the pair of dividing wall parts is firmly fixed to the gutter pipe. It is possible to fix it.

Next, the joining piece will be described. This joining piece is provided for joining the divided side portions of the pair of dividing walls described above, and the material thereof is preferably metal like the mounting frame, and its cross section is L-shaped. It is preferable. When joining the dividing wall parts using this joining piece, it is possible to join them by means of a plate-like elastic piece so as to seal the joining surfaces of the dividing side parts and the joining surfaces of the joining pieces. It is preferable for improving the water channel formation preventing effect of the assembled impermeable wall, and the material of this elastic piece is preferably the same as the elastic body for sealing between the gutter pipe and the frame body.

In the water channel formation prevention gutter pipe structure according to the present invention, the divided side portions of the divided wall portion are welded at the construction site without using the above-mentioned joining piece and elastic piece. You may join. Further, the specific construction procedure will be described in detail in the section of the embodiment described later, and the description thereof will be omitted here.

As described above in detail, the water channel formation preventing gutter tube structure according to the present invention has a simple structure and has a conventional water channel formation preventing gutter tube structure (water channel preventing structure around the gutter tube). However, it is difficult to transport parts due to the increase in size and weight, and the workability is poor. In terms of the construction and the frame body having a shape corresponding to the divided wall portions, the workability at the time of construction can be made very good and the construction period can be greatly shortened. Further, from another point of view, the present invention provides a strip-shaped elastic body, a pair of partition walls having a notch having a shape corresponding to the outer shape of the gutter tube, and a shape corresponding to the outer shape of the gutter tube. It is mounted on the dividing wall part, and after the elastic body is wound around the gutter pipe, it is mounted on the part together with the pair of dividing wall parts, and the dividing wall parts are joined to each other to form the gutter pipe. (EN) Provided is a structure for preventing the formation of a water channel in a gutter pipe, which comprises a frame body for fixing it to

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION The specific construction of the water channel formation preventing gutter pipe structure according to the present invention and the construction procedure thereof will be described below based on the embodiments shown in the drawings. The present invention is not limited to this. FIG. 1 is an overall view of a concrete embodiment of a water channel formation preventing trough structure according to the present invention. FIG. 2 is a front view of the vicinity of the impermeable wall mounting portion of the embodiment of FIG. FIG. 3 is a right side view of the vicinity of the impermeable wall mounting portion of the embodiment of FIG. FIG. 4 is a left side view in the vicinity of the impermeable wall mounting portion of the embodiment shown in FIG. Figure 5
[Fig. 2] is a plan view of the vicinity of the impermeable wall mounting portion of the embodiment of Fig. 1. FIG. 6 is a sectional view taken along the line AA of FIG. FIG. 7 is a sectional view taken along line BB of FIG. FIG. 8 is a schematic construction drawing showing a procedure for attaching the dividing wall portion to the gutter pipe. FIG. 9 is a view corresponding to FIG. 2 showing another embodiment of the water channel formation preventing trough structure according to the present invention. FIG. 10 is a view corresponding to FIG. 2 showing still another embodiment of the water pipe formation preventing trough structure according to the present invention.

First, referring to FIG. 1, a water channel formation preventing gutter pipe structure 1 which is a concrete embodiment of a water channel forming prevention gutter pipe structure according to the present invention is arranged so that water in a river 2 is treated as a drainage treatment plant or the like. To the location (not shown) of the dike 3 and a dividing wall for preventing the formation of a water channel (water drainage channel) 5 that may occur in the vicinity of the gutter pipe 6. It is mainly composed of an impermeable wall 7 composed of parts 14 and 15. Moreover, 4 is a gutter.

The details of the mounting structure of the partition walls 14 and 15 to the gutter pipe 6 will be described with reference to FIGS.
Gutter tube 6 made of polyethylene, as shown in
A strip-shaped elastic body 9 made of chloroprene rubber is arranged on the outer peripheral surface 8 of the so as to surround the outer peripheral surface 8 of the gutter pipe 6. The chloroprene rubber may be water-expanded rubber, and when this water-expanded rubber is used as the material of the elastic body 9, the chloroprene rubber swells with water after the gutter tube 6 and the partition walls 14 and 15 are attached, and thereby It is more preferable in terms of sealing property.

2 to 7, semicircular steel frame bodies 10a, 10b having L-shaped cross sections on the front and back edges of the semicircular cutout portions 16 of the dividing wall portions 14 and 15,
One surface of 11a and 11b is fixed by penetrating with a bolt 12 and a nut 13, respectively.

Further, joining pieces 18a, 18b, 18 are provided on the front and back sides of the dividing side portion 17 of the dividing wall portions 14 and 15, respectively.
c, 18d, 18e, 18f, 18g and 18h are fixed using bolts 12 and nuts 13, and further, joining pieces 18a and 18b, 18c and 18d, 18e and 18f, 1
8g and 18h connect the bolt 12 and the nut 13 via elastic pieces 19 and 20 that seal between the dividing wall portions 14 and 15.
Is fixed by using the above-mentioned structure to form one impermeable wall 7. Then, the divided side portions 17 are joined together in this way to form one impermeable wall 7, whereby the above-mentioned frame bodies 10a, 10
The other side of b, 11a and 11b and the dividing wall portion 1
The cutout portions 16 of 4, 15 press the elastic body 9 to fix the water shield wall 7 to the outer periphery of the gutter pipe 6, and enhance the sealing effect between the outer peripheral surface 8 of the gutter pipe 6 and the water shield wall 7. There is.

Next, the procedure of the actual construction of the gutter pipe 1 having the water channel formation preventing structure of the above construction will be described with reference to FIG. Regarding the actual construction of the water channel formation preventing gutter pipe structure 1 of this embodiment, first, the dividing wall portion 15 is installed at a desired position. At this time, the frame bodies 10b and 11 are previously provided in the cutout portion 16 of the dividing wall portion 15.
b is attached, and the joining piece 18b,
It is preferable to attach 18d, 18f and 18h. Next, the gutter pipe 6 around which the elastic body 9 is wound is placed on the cutout portion 16 of the dividing wall portion 15, and then the elastic pieces 19 and 20 are placed on the dividing side portion 17 of the dividing wall portion 15. Place the mounting wall 10a and 11a and the joint pieces 18a, 18c, 18e and 18g on the trough pipe 6 in advance, similarly to the above-described partition wall portion 15, and
Further using the bolt 12 and the nut 13, the joining pieces are joined together, that is, the joining pieces 18a and 18b, 18c and 18d, 18e.
And 18f, and 18g and 18h are elastic pieces 19, 20 respectively.
Then, the construction of the water channel formation preventing gutter pipe structure 1 is completed.

As described above, in the water channel formation preventing trough structure 1 according to the present invention, since the water blocking wall 7 is composed of the divided wall portions 14 and 15 which are vertically divided, the conventional water channel formation preventing method is used. It is possible to eliminate the large-scale work of inserting the gutter pipe through the through hole of the impermeable wall, which was necessary for constructing the gutter pipe structure, and drastically shorten the construction period (for example, 1 /
4 to 1/5). In addition, the frame
One of the joining pieces with L-shaped cross-section that is attached to the front and back of the dividing wall
Attach one part to the dividing side part of the dividing wall part, and the other one part
(With bolts) and slam the gutter tube in this direction.
By pressing through the body, the pair of partition walls and each
The frame is attached to the gutter pipe. Therefore, the frame body, elasticity
Even if there are variations in the dimensions of the body, gutter pipe, etc.
Sufficiently stop water around the gutter pipe by adjusting the strength
be able to.

Further, the water channel formation preventing gutter tube structure 21 according to the present invention may be a water channel forming prevention gutter tube structure 21 shown in FIG. 9 as another embodiment. The water channel formation preventing gutter pipe structure 21 of this embodiment is similar to the water channel formation preventing gutter tube structure 1 of the above-described embodiment shown in FIGS. 1 to 7 in which the elastic pieces 19 and 20 and the joining pieces 18a and 18b are provided. 1
8c, 18d, 18e, 18f, 18g, and 18h are welded to each other at the divided side portions 17 of the divided wall portions 14 and 15 which are joined to each other, and a welded joint portion 22 is formed to form one shield. It is connected to the water wall 27. Other configurations are the same as those of the water channel formation preventing trough structure 1 of the above-described embodiment. In addition, as a construction procedure,
After the dividing wall portions 34 and 35 and the gutter pipe 6 are respectively installed at predetermined positions, a step of forming the welded joint portion 22 by on-site welding is added, and instead the elastic pieces 19 and 20 and the joint pieces 18a, 18b are added. , 18c, 18e, 18f, 18g, and 18h are the same except that the step of attaching is unnecessary. The water channel formation preventing trough structure 21 of this embodiment is particularly preferable in terms of cost.

As yet another embodiment, FIG.
The water channel formation preventing trough structure shown in FIG.
The water channel formation preventing gutter pipe structure 41 of this embodiment is suitable for installation in a place where subsidence of the ground can be easily predicted after construction, and an elastic resin frame is provided on the outer peripheral portion of the impermeable wall 47. 42 is a bolt 1 via a pressing plate 43.
It is fixed with 2 and a nut 13. Further, a steel frame 45 is provided on the outer peripheral portion of the elastic resin frame 42.
Are fixed by the bolts 12 and the nuts 13 via the pressing plate 44. Other configurations are shown in FIGS.
It is the same as the water channel formation preventing trough structure 1 of the above-described embodiment shown in FIG. The construction procedure is the same except that the step of attaching the elastic resin frame 42 and the steel frame 45 is added at the end of the construction procedure.

In the water channel formation preventing trough structure 41 of this embodiment, an elastic resin frame 42 is provided on the outer peripheral portion of the impermeable wall 47, so that the elasticity of the elastic resin frame 42 is utilized for subsidence of the ground. Although the followability of is improved, since the entire impermeable wall is not made of an elastic body,
It does not deteriorate workability during construction.

[0034]

According to the present invention, since the water-impervious wall is constituted by the pair of partition walls, the through-hole portion of the water-impervious wall which is necessary in the construction of the conventional water channel formation preventing gutter pipe structure. It is possible to eliminate the work of inserting the gutter pipe into the, and it is possible to significantly reduce the construction period. Further, since the impermeable wall is made of a hard thermoplastic resin and has appropriate rigidity and appropriate elasticity, it is possible to eliminate the need for a frame as a reinforcing means, which was necessary in the impermeable wall made of a conventional elastic resin, Furthermore, since it can be made to stand by itself at a desired position during construction, workability is greatly improved. Further, even when the ground is submerged, the elastic member and the elastic piece can be used to follow the gutter pipe without applying an excessive force, and the gutter pipe can be prevented from being damaged.

[Brief description of drawings]

FIG. 1 is an overall view of a concrete embodiment of a water channel formation preventing trough structure according to the present invention.

FIG. 2 is an enlarged front view of the vicinity of the impermeable wall mounting portion of the embodiment of FIG.

FIG. 3 is an enlarged right side view in the vicinity of the water impermeable wall mounting portion of the embodiment of FIG.

FIG. 4 is an enlarged left side view in the vicinity of the water-impervious wall mounting portion of the embodiment of FIG.

FIG. 5 is an enlarged plan view of the vicinity of the impermeable wall mounting portion of the embodiment of FIG.

6 is a cross-sectional view taken along the line AA of FIG.

FIG. 7 is a sectional view taken along line BB of FIG.

FIG. 8 is a schematic construction drawing showing a procedure for attaching the dividing wall portion to the gutter pipe.

FIG. 9 is a view corresponding to FIG. 2 showing another embodiment of the water channel formation preventing trough structure according to the present invention.

FIG. 10 is a view corresponding to FIG. 2 showing still another embodiment of the water channel formation preventing trough structure according to the present invention.

[Explanation of symbols]

1, 21, 41 ・ ・ ・ Water channel formation prevention gutter structure 2 ... river 3 ... Embankment 4 ... Himon 5 ... Water Michi 6 ... gutter 7, 27, 47 ... Impermeable wall 8 ... Outer peripheral surface 9 ... Elastic body 10, 11 ... Frame 12 ... Bolt 13 ... Nut 14, 15, 34, 35, 54, 55 ... Dividing wall portion 16 ... Notch 17: Divided side part 18 ... Joining piece 19, 20 ... Elastic piece 22 ... Welded joint 42 ... Elastic resin frame 43, 44 ... Pressing plate 45 ... Steel frame

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-61-21408 (JP, A) Actual Kaihei 4-89119 (JP, U) Actual Kohei 1-18719 (JP, Y2) (58) Field (Int.Cl. ⁷ , DB name) E02B 8/00 E02B 3/04 E02B 3/10

Claims (6)

(57) [Claims] 1. A gutter pipe buried in the ground, a band-shaped elastic body, a pair of partition walls having a cutout portion having a shape corresponding to the outer shape of the gutter pipe, and also corresponding to the outer shape of the gutter pipe. Has a shape, is attached to the front and back of the dividing wall portion, respectively , and has a pair of frame bodies for fixing the dividing wall portion to the gutter pipe, and an L-shaped cross section,
One of the pieces is on the front and back of the dividing side of the dividing wall
Two for attaching and joining these split side parts comrades
It consists of a pair of joining pieces, and a pair of dividing wall parts and each frame body wound an elastic body around the gutter pipe.
After that, it is placed in that area, then the other piece of the joining piece
Directly or through a plate-shaped elastic piece, and tighten
By pressing the gutter tube in the direction of the gutter through the elastic body,
A water pipe formation prevention gutter structure attached to the pipe. 2. The water channel formation preventing trough structure according to claim 1, wherein the dividing wall portion is made of high density polyethylene. 3. The water channel formation preventing gutter pipe structure according to claim 1, wherein the elastic body is made of any one of natural rubber, synthetic rubber and thermoplastic elastomer. 4. The water channel formation preventing gutter tube structure according to claim 1, wherein the elastic body is a composite body in which a superabsorbent polymer is mixed with natural rubber, synthetic rubber or a thermoplastic elastomer. 5. The water channel formation preventing trough structure according to claim 1 , wherein the elastic piece is made of any one of natural rubber, synthetic rubber and thermoplastic elastomer. 6. The water channel formation preventing gutter tube structure according to claim 1 , wherein the elastic piece is a composite of natural rubber, synthetic rubber or a thermoplastic elastomer mixed with a superabsorbent polymer.