JP2000178948A - Water-channel formation preventive sluiceway structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for works for inserting a sluiceway into the hole of an impervious wall, and to attain the large shortening of an execution period. SOLUTION: The water-channel formation preventive sluiceway structure comprises a sluiceway 6 buried into a ground, a beltlike elastic body 9, a pair of division wall sections 14, 15 with notched sections 16 having a shape corresponding to the external shape of the sluiceway 6 and a frame body 10 similarly having a shape corresponding to the external shape of the sluiceway 6, being installed to the division wall sections 14, 15 and being used for fixing the division wall sections 14, 15 to the sluiceway 6. A pair of the division wall sections 14, 15 and the frame body 10 are mounting at the site of the winding to the elastic body after the elastic body 9 is wound on the sluiceway 6, and the division wall sections 14, 15 are joined mutually.

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 formation of water passages, and more particularly, a water gutter (water drainage passage) is formed near a gutter tube buried in a bank, such as a river or a reservoir. The present invention relates to a gutter pipe structure for preventing formation of water channels to prevent the formation of water.

[0002]

2. Description of the Related Art Conventionally, relatively large gutter pipes (or flexible drain pipes) have been buried in river embankments as a means for guiding river water to another place. There is. This is sometimes used to control the amount of water when the river rises and to prevent the break of the embankment, but it is also used as a means to take water from the river to the water treatment plant. However, since the gutter pipe is buried under the embankment, water paths (water passages, drainage channels) may be formed not only inside the gutter pipe but also near the outside. In this case, Since the soil near the gutter pipe is shaved off, the gutter pipe may sink and be damaged, or in the worst case, the embankment may collapse.

[0003] As means for solving the above-mentioned problem, there is a method in which a water-impervious wall for preventing formation of water channels is attached to the outer periphery of a gutter pipe buried underground. But,
Depending on the material of the impermeable wall and the method of attachment to the gutter pipe, the impermeable wall cannot follow the ground when the ground sinks, and the positional relationship between the gutter pipe and the impermeable wall may become unreasonable. Could cause damage.

[0004] In order to cope with such settlement of the ground, there is a structure for preventing a water passage around a gutter tube disclosed in Japanese Patent Application Laid-Open No. 8-68031. The water channel prevention structure around the gutter tube includes a gutter tube, a mounting ring body movable in the axial direction of the gutter tube, an elastic body provided on an outer peripheral portion of the mounting ring body, An elastic body is interposed between the mounting ring body and the water impervious wall. The elastic body is interposed between the mounting ring body and the water impervious wall. By utilizing the flexibility of the above, the impermeable wall is made to follow the settlement of the ground so that the positional relationship with the gutter pipe is not excessively caused.

[0005] As a solution to the similar problem,
A water channel prevention structure around a gutter tube disclosed in JP-A-8-144248 can be cited. The water channel prevention structure around the gutter pipe is mainly composed of a gutter pipe, a mounting ring body movable in the axial direction of the gutter pipe, and a water impermeable wall made of an elastic body. In addition to the mobility of the body in the axial direction, the impermeable wall itself is made of an elastic body, so that the impermeable wall follows the subsidence of the ground, so that the positional relationship with the gutter pipe does not become excessive. Things.

However, in order to actually construct the gutter pipe structure for preventing the formation of water channels, it is necessary to insert a gutter pipe into a through hole formed in the impermeable wall. Work to move in the axial direction along the outer periphery of the gutter pipe and fix it at a desired position is required, requiring a great deal of labor and extremely poor workability. As another problem, the impermeable wall made of elastic material has
There is a problem that it is difficult to maintain the shape (independence) during construction,
Actually, a rigid frame had to be attached to the outer peripheral edge of the impermeable wall made of an elastic body. Still another problem is that the elastic body used for the impermeable wall is generally expensive, is heavier than a plastic material such as polyethylene, and has a curl because it is rolled and transported during transportation. It was pointed out that it was inferior in economy, transportability, and workability because of the fact that it remained.

[0007]

According to the present invention, there is provided a gutter tube buried in the ground, a band-shaped elastic body, and a pair of divided wall portions having cutouts having a shape corresponding to the outer shape of the gutter tube. It also has a shape corresponding to the outer shape of the gutter pipe, is attached to the dividing wall,
It consists of a frame for fixing the divided wall to the gutter pipe, and the pair of divided walls and the frame are attached to the part after the elastic body is wound around the gutter pipe, and the divided walls are joined to each other. Provided is a water channel formation preventing gutter tube structure formed by joining. In other words, the present invention eliminates the need to insert a gutter pipe into a through-hole of a water-impervious wall as in the related art by constructing a member corresponding to a conventional water-impervious wall with a pair of divided wall parts, It is possible to significantly shorten the period. In addition, since the manufacturing apparatus of the impermeable wall can be downsized by the simple configuration change, it is possible to achieve a reduction in the manufacturing cost in addition to the construction cost.

In the present invention, it is necessary to prevent the formation of water channels in the vicinity of the gutter pipe, specifically, at a position close to or slightly away from the outer periphery of the gutter pipe. And this position is a position where there is a risk that the embankment in which the gutter pipe is buried or collapsed when the water channel is formed, and is, for example, about 1 to 3 m from the outer surface of the gutter pipe. .

First, the configuration of the gutter pipe structure for preventing water channel formation according to the present invention will be described. A gutter pipe structure for preventing water channel formation according to the present invention has a gutter pipe buried in the ground, a band-shaped elastic body, and a pair of divided wall portions having a cutout 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 part, and comprises a frame for fixing the dividing wall part to the gutter pipe, but more specifically,
In addition to the gutter pipe, the elastic body, the pair of divided walls, and the frame, the main part mainly includes a joining piece attached to each of the divided sides to join the divided sides of the divided walls at the site. Things. Hereinafter, each member will be described in detail.

First, the shape of the gutter tube is not particularly limited, and examples thereof include a tube having a circular cross section, an elliptical shape, and a square shape. Specifically, the gutter tube is preferably a circular tube, and has a diameter of 500 to 3000 mm. More preferably, it is a synthetic resin pipe having a thickness of about 20 to 200 mm. The material is preferably a hard thermoplastic resin, more preferably polyethylene (high pressure polyethylene tube).

Next, the elastic body is in the form of a band having a certain thickness and width, and is formed between the outer periphery of the gutter pipe and a notch of a dividing wall described later and a frame mounted on the notch. It is provided to seal the gap between the gutter pipe and the notch and the frame body. There is also an effect that it is possible to absorb a shift in the positional relationship with the wall portion (water impermeable wall) so that mechanical unreasonableness does not occur between the two. The specific thickness is preferably 1 to 2% of the outer diameter of the gutter tube in consideration of the deformation of the gutter tube when buried in the ground,
In the case of a gutter tube having a diameter of 1000 mm or more often used in this field, the standard thickness is 20 mm to 30 mm.
mm.

However, as described above, the thickness is not limited for the purpose of improving the followability of the pair of divided walls to the land subsidence, and can be appropriately selected from the range of about 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 a frame described later, and the standard width can be about 160 mm.

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

Next, the pair of divided walls will be described. In the present invention, a pair of divided walls are joined on site to form one impermeable wall. The joined water barrier wall is preferably substantially rectangular in a front view, and a substantially central portion thereof has a through-hole having a contour corresponding to the outer shape of the gutter pipe. Preferably, a circular through hole is formed.

That is, a cutout portion substantially corresponding to the outer shape of the gutter pipe is formed at a portion corresponding to the through hole of the water-impervious wall of the pair of divided wall portions in which the water-impervious wall is divided into two. More specifically, although it depends on the thickness of the above-mentioned elastic body, it is preferable that each of the elastic bodies is formed in a semicircular notch portion having a diameter of about 20 mm plus the outer diameter of the gutter pipe. Frames to be described later are respectively attached to the semicircular cutouts. On the other hand, the divided side portions of the divided wall portion (that is, the linear portions on both sides of the cutout portion) use joint pieces to be described later. , Preferably joined to each other via an elastic piece also described later.
It becomes two impermeable walls.

[0016] By forming a single impermeable wall in this way, the cutouts of the pair of divided walls and the frames attached to the cutouts 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 periphery of the gutter pipe. Further, as described above, by forming the impermeable wall by the pair of divided wall portions, it is necessary to insert a gutter pipe into the through-hole portion of the impermeable wall, which is necessary at the time of construction in the conventional example. This eliminates the need for laborious work.

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

The material of the pair of divided walls is preferably a hard thermoplastic resin, specifically, high-density polyethylene, and the thickness thereof is determined by the specific circumstances of the construction site. It is preferably 40 mm. This is because the pair of divided wall portions constituting the impermeable wall of the water channel formation preventing gutter pipe structure according to the present invention are required to have two physical properties of appropriate rigidity and appropriate elasticity. In addition, since the dividing wall has appropriate rigidity and appropriate elasticity, the dividing wall can be made independent at a desired position during construction of the gutter pipe structure for preventing water channel formation, thereby facilitating construction. In addition, by pressing the pair of divided walls against the gutter pipe via the above-described elastic body, it is possible to prevent the gutter pipe from being damaged even if an excessive force is applied to a mounting portion 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 with respect to the conventional impermeable wall made of iron or rubber. In particular, reduction in weight is preferable in terms of simplifying transportation, improving workability and safety during construction, and preventing land subsidence after construction. In particular, since the conventional rubber impermeable wall is rolled and transported during transportation, it has a curl, which is a major factor that deteriorates workability during construction. Is made of a hard thermoplastic resin so as to be self-supporting as described above, and thus the workability is not deteriorated.

Next, the frame will be described. In the present invention, the frame is preferably made of metal. The shape is required to be a shape corresponding to the outer shape of the gutter tube, but is preferably a shape that can be divided into a plurality, that is, a shape corresponding to the cutout portion of the divided wall portion,
More preferably, the ring-shaped frame has a semicircular shape obtained by dividing the ring into two. The cross section is preferably L-shaped. Then, one surface of the mounting frame having the L-shaped cross section is mounted around the notch portion of the pair of divided wall portions so as to surround the notch portion. More preferably, the frame is provided on the front and back edges of the cutouts of the pair of divided walls, that is, on both sides. With the provision on both sides in this manner, it is possible to press the elastic body wound on the outer peripheral surface of the gutter tube from the two directions of the front and back of the divided wall portion, and the pair of divided wall portions is firmly attached to the gutter tube. It can be fixed.

Next, the joining piece will be described. This joining piece is provided to join the divided side portions of the pair of divided walls described above, and the material thereof is preferably metal like the mounting frame, and its cross section is L-shaped. Is preferred. When joining the divided wall portions by using the joining piece, it is necessary to join via a plate-shaped elastic piece so as to seal the joining surface of the divided side portions and the joining surface of the joining pieces. In order to improve the effect of preventing the formation of water channels of the assembled impermeable wall, the material of the elastic piece is preferably the same as the above-mentioned elastic body which seals between the gutter tube and the frame.

In the gutter pipe structure for preventing water channel formation according to the present invention, the divided side portions of the divided wall portion are welded at the construction site without using the above-described joint pieces and elastic pieces. You may join. In addition, the specific construction procedure will be described in detail in an embodiment below, and the description thereof will be omitted here.

As described above in detail, the gutter pipe structure for preventing water channel formation according to the present invention has a simple structure and a conventional gutter pipe structure for preventing water channel formation (a water channel prevention structure around gutter pipes). Although the above problems were overcome, such as the difficulty of transporting parts due to the increase in size and weight, and the poor workability, it should be noted that the impermeable wall is formed by a pair of divided walls. The construction and the frame also have a shape corresponding to the divided wall portions, and the workability during the construction is very good, and the construction period can be greatly reduced. According to another aspect of the present invention, a band-shaped elastic body, a pair of divided wall portions having a cutout having a shape corresponding to the outer shape of the gutter tube, and a shape corresponding to the outer shape of the gutter tube are also provided. After the elastic body is wound around the gutter tube and attached to the dividing wall portion, the gutter tube is attached to the portion together with the pair of dividing wall portions, and the divided wall portions are joined to each other so that the dividing wall portion is connected to the gutter tube. Provided is a structure for preventing water channel formation of a gutter pipe, comprising a frame body for fixing the gutter pipe to a gutter.

[0024]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the construction of a gutter pipe structure for preventing formation of water channels according to the present invention. Note that the present invention is not limited to this. FIG. 1 is an overall view of a concrete embodiment of a gutter pipe structure for preventing water path formation according to the present invention. FIG. 2 is a front view of the vicinity of the impermeable wall mounting portion in the embodiment of FIG. FIG. 3 is a right side view of the vicinity of the impermeable wall mounting portion in the embodiment of FIG. FIG. 4 is a left side view of the vicinity of the impermeable wall mounting portion in the embodiment of FIG. FIG.
FIG. 2 is a plan view of the vicinity of a water impervious wall mounting portion in the embodiment of FIG. 1. FIG. 6 is a sectional view taken along line AA of FIG. FIG. 7 is a sectional view taken along line BB of FIG. FIG. 8 is a schematic construction diagram showing a procedure for attaching the dividing wall to the gutter pipe. FIG. 9 is a view corresponding to FIG. 2 showing another embodiment of the gutter pipe structure for preventing water channel formation according to the present invention. FIG. 10 is a view corresponding to FIG. 2 showing still another embodiment of the gutter pipe structure for preventing water channel formation according to the present invention.

First, in FIG. 1, a water channel formation preventing gutter pipe structure 1 which is a specific embodiment of the water channel formation preventing gutter pipe structure according to the present invention is used for discharging water from a river 2 to a drainage treatment plant or the like. (Not shown), and a dividing wall for preventing formation of a gutter pipe 6 buried in the embankment 3 and a water channel (water drainage passage) 5 which may be generated in the vicinity of the gutter pipe 6. And the impermeable wall 7 composed of the parts 14 and 15. 4 is a gutter.

The details of the structure for attaching the dividing walls 14 and 15 to the gutter pipe 6 are described in FIGS.
As shown in the above, gutter pipe 6 made of polyethylene
A strip-shaped elastic body 9 made of chloroprene rubber is disposed on the outer peripheral surface 8 of the gutter tube 6 so as to surround the outer peripheral surface 8 of the gutter tube 6. The chloroprene rubber may be a water-swelling rubber. When the water-swelling rubber is used as a material of the elastic body 9, it swells due to moisture after the gutter tube 6 and the partition walls 14 and 15 are attached, whereby This is more preferable in terms of sealing properties.

In FIGS. 2 to 7, semicircular steel frames 10a, 10b having an L-shaped cross section are provided on the front and back peripheral edges of the semicircular cutout portions 16 of the dividing walls 14 and 15.
One surface of 11a and 11b is penetrated and fixed using a bolt 12 and a nut 13, respectively.

On the front and back of the divided side portion 17 of the divided walls 14 and 15, bonding pieces 18a, 18b, 18
c, 18d, 18e, 18f, 18g and 18h are fixed by using bolts 12 and nuts 13. Further, joint pieces 18a and 18b, 18c and 18d, 18e and 18f,
8g and 18h are connected to the bolt 12 and the nut 13 by elastic pieces 19 and 20 for sealing between the divided walls 14 and 15.
To form one impermeable wall 7. The divided side portions 17 are joined to form one impermeable wall 7 in this manner, so that the above-described frame bodies 10a, 10
b, 11a and 11b and the other side and divided wall 1
The cutout portions 16 of 4 and 15 press the elastic body 9 to fix the impermeable wall 7 to the outer periphery of the gutter tube 6 and enhance the sealing effect between the outer peripheral surface 8 of the gutter tube 6 and the impermeable wall 7. I have.

Next, the procedure for actually installing the gutter pipe 1 having the water channel formation prevention structure having the above-described structure will be described with reference to FIG. Regarding the actual construction of the gutter pipe structure 1 for preventing water channel formation of this embodiment, first, the dividing wall portion 15 is installed at a desired position. At this time, the frame members 10b and 11
b, and a 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 elastic pieces 19 and 20 are placed on the dividing side portion 17 of the dividing wall portion 15. Place the split wall portion 14 on which the mounting frames 10a and 11a and the joining pieces 18a, 18c, 18e and 18g are mounted in advance in the same manner as the above-described split wall portion 15, and place the split wall portion 14 on the gutter pipe 6,
The bolts 12 and the nuts 13 are used to further join the joint pieces, namely, the joint pieces 18a and 18b, 18c and 18d, and 18e.
And 18f, 18g and 18h with elastic pieces 19 and 20, respectively.
And the construction of the water channel formation prevention gutter tube structure 1 is completed.

As described above, since the water channel formation preventing gutter pipe structure 1 according to the present invention is constituted by the partition walls 14 and 15 in which the water impervious wall 7 is divided into upper and lower portions, the conventional water channel formation prevention device is used. This eliminates the need for a large-scale operation of inserting a gutter pipe into the through-hole of the impermeable wall, which was necessary for constructing the gutter pipe structure, and significantly shortening the construction period (for example, 1/4)
(Reduced to １ ／).

The water channel formation preventing gutter pipe structure according to the present invention may be a water channel formation prevention gutter tube structure 21 shown in FIG. 9 as another embodiment. The water channel formation preventing gutter tube structure 21 of this embodiment is the same as the water channel formation prevention gutter tube structure 1 of the above-described embodiment shown in FIGS. 1 to 7, except that the elastic pieces 19 and 20 and the joining pieces 18 a and 18 b are used. , 1
8c, 18d, 18e, 18f, 18g, and 18h are welded to portions corresponding to the divided side portions 17 of the divided walls 14 and 15, which were joined together, to form a welded joint 22, thereby forming one welded joint. It is connected to the water wall 27. Other configurations are the same as those of the water channel formation preventing gutter tube structure 1 of the above-described embodiment. Also, as the construction procedure,
After the dividing walls 34 and 35 and the gutter tube 6 are respectively installed at predetermined positions, a step of forming the weld joint 22 by field welding is added. Instead, the elastic pieces 19 and 20 and the joint pieces 18a and 18b are added. , 18c, 18e, 18f, 18g, and 18h are the same except that the step of mounting is unnecessary. The water channel formation preventing gutter tube structure 21 of this embodiment is particularly preferable in terms of cost.

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

The gutter pipe structure 41 for preventing water channel formation according to this embodiment is provided with an elastic resin frame 42 on the outer peripheral portion of the impermeable wall 47 so as to take advantage of the elasticity of the elastic resin frame 42 to sink the ground. Although the followability has been further improved, since the entire impermeable wall is not an elastic body,
There is no deterioration in workability during construction.

[0034]

According to the present invention, since the impermeable wall is constituted by the pair of divided wall portions, the through hole portion of the impermeable wall which is necessary in the construction of the conventional water channel formation preventing gutter pipe structure. The work of inserting a gutter pipe into the pipe can be made unnecessary, and the construction period can be significantly shortened. In addition, since the impermeable wall is made of a hard thermoplastic resin and has an appropriate rigidity and an appropriate elasticity, it is possible to eliminate the need for a frame as a reinforcing means necessary for the impermeable wall made of a conventional elastic resin, Furthermore, the workability can be greatly improved because the work can be made to stand alone at a desired position during construction. In addition, the adoption of the elastic body and the elastic piece can follow the settlement of the ground without applying an excessive force to the gutter pipe, thereby preventing breakage of the gutter pipe.

[Brief description of the drawings]

FIG. 1 is an overall view of a specific embodiment of a gutter pipe structure for preventing water channel formation according to the present invention.

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

FIG. 3 is an enlarged right side view of the vicinity of a water impermeable wall mounting portion in the embodiment of FIG. 1;

FIG. 4 is an enlarged left side view of the vicinity of a water impermeable wall mounting portion in the embodiment of FIG. 1;

FIG. 5 is an enlarged plan view of the vicinity of a water impervious wall mounting portion in the embodiment of FIG. 1;

FIG. 6 is a sectional view taken along line AA of FIG. 2;

FIG. 7 is a sectional view taken along line BB of FIG. 2;

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

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

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

[Explanation of symbols]

 1, 21, 41: water channel formation prevention gutter tube structure 2: river 3, river embankment 4, gutter gate 5, water channel 6, gutter tube 7, 27, 47, etc.・ Waterproof wall 8 ・ ・ ・ Outer peripheral surface 9 ・ ・ ・ Elastic body 10,11 ・ ・ ・ Frame 12 ・ ・ ・ Bolt 13 ・ ・ ・ Nut 14,15,34,35,54,55 ・ ・ ・ Split wall Part 16: Notched portion 17: Divided side portion 18: Joining piece 19, 20 ... Elastic piece 22 ... Welded joint 42: Elastic resin frame 43, 44 ... Holding plate 45 ・ ・ ・ Steel frame

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yuichi Shibao 2-3-1 Awajicho, Chuo-ku, Osaka-shi, Osaka Dai-Nippon Plastics Co., Ltd. F-term (reference) 2D063 BA01 BA33

Claims (7)

[Claims] 1. A gutter tube buried in the ground, a strip-shaped elastic body, and a pair of divided wall portions having a cutout having a shape corresponding to the outer shape of the gutter tube, and also corresponding to the outer shape of the gutter tube. It has a shape, is attached to the dividing wall portion, and comprises a frame body for fixing the dividing wall portion to the gutter tube, and the pair of divided wall portions and the frame member are formed by winding an elastic body around the gutter tube,
A gutter pipe structure for preventing water channel formation, which is attached to the part and which is joined to the divided walls. 2. The water channel according to claim 1, wherein the divided wall portions are joined by joining the joined pieces respectively attached to the divided side portions directly or via a plate-shaped elastic piece. Prevention gutter tube structure. 3. The gutter pipe structure according to claim 1, wherein the dividing wall is made of high-density polyethylene. 4. The gutter pipe structure according to claim 1, wherein the elastic body is made of any one of natural rubber, synthetic rubber and thermoplastic elastomer. 5. The water channel formation preventing gutter tube structure according to claim 1, wherein the elastic body is a composite of a natural rubber, a synthetic rubber, or a thermoplastic elastomer mixed with a superabsorbent polymer. 6. The gutter pipe structure according to claim 2, wherein the elastic piece is made of any one of natural rubber, synthetic rubber, and thermoplastic elastomer. 7. The gutter pipe structure according to claim 2, wherein the elastic piece is a composite of a natural rubber, a synthetic rubber, or a thermoplastic elastomer mixed with a superabsorbent polymer.