JP3128456B2 - How to attach impermeable walls to gutter pipes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a water-impervious wall provided around a gutter pipe buried in a dike or the like.

[0002]

2. Description of the Related Art Conventionally, as a method of mounting a water impervious wall to a gutter pipe of this type, for example, as shown in FIG. 17, a gutter pipe 31 is first laid under the ground of a dike 32 by a propulsion method, and thereafter, The embankment 32 is dug up to form a pit 33, and a formwork is provided in the pit 33 and concrete 34 is poured into the pit 32 so that the impermeable wall 35 is formed.
Is formed at a predetermined position of the gutter tube 31.

[0003]

However, in the above-mentioned excavation method, the embankment 32 must be dug and opened. Therefore, when the road 36 is provided on the embankment 32, There was a problem that it had to be closed. Further, when the laying position of the gutter tube 31 is very deep, it is difficult to dug the pit 33 correspondingly.

An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a method of attaching a water-impervious wall to a gutter pipe, which can be installed without opening a dike. .

[0005]

According to a first aspect of the present invention, there is provided a method of mounting a water impervious wall on a gutter pipe in order to solve the above problem.
The impermeable wall is constituted by a plurality of pieces divided in the circumferential direction of the gutter pipe, a gutter pipe formed by connecting a plurality of pipe bodies is laid underground by a propulsion method, and a specific pipe body and a pipe body are formed. The intermediate ring inserted between the pipes is removed from the inside of the gutter pipe to form a gap between the specific pipe body and the pipe body, and the pieces are sequentially pressed radially from inside the gutter pipe. pressed into the ground through the gap, and arranged these pieces over the entire circumference, this time, each other
The pieces adjacent to each other are provided in each of these pieces.
The first connecting member and the second connecting member are engaged with each other.
More connected . In the second invention,
The method of attaching the impermeable wall to the gutter pipe is as follows.
It is formed in a concave shape that opens to the
A second connecting member attached radially to one side edge
Is formed in a concave shape that opens rearward, and
Mounted radially on the other side edge
It is.

[0006]

According to the above arrangement, the pieces are pressed into the ground from the inside of the gutter tube and arranged along the entire circumference, so that the impermeable wall can be attached from the inside of the gutter tube to the periphery of the gutter tube. Therefore, it becomes unnecessary to dig up the embankment to install the impermeable wall. If necessary, it is also possible to seal the space between the impermeable wall and the pipe from inside the gutter pipe. Each piece adjacent to each other has the first connecting member and the second connecting member.
The two connecting members are connected by engaging each other.
Therefore, even if external force acts on the impermeable wall, the neighboring pieces
There is no separation in the direction.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 14, reference numeral 1 denotes a gutter pipe buried in the embankment 2. For draining to another river or wastewater treatment plant. The gutter tube 1 is configured by connecting a number of tubes 3. A road 4 is provided above the embankment 2.

[0008] Of the pipes 3 constituting the gutter pipe 1, FIG.
As shown in FIG. 2, a detachable intermediate ring 6 is mounted between a specific pipe 3a and a pipe 3b via a plurality of countersunk bolts 7. The intermediate ring 6 has the same inner diameter as the inner diameters of the tubes 3a, 3b, is sandwiched between the end faces of the two tubes 3a, 3b, and has the same outer diameter as the two tubes 3a, 3b. And a fitting portion 10 formed on both front and rear sides of the body portion 8 and fitted into the insertion port 9 (see FIG. 13) of one tube 3a and the insertion port 9 (see FIG. 13) of the other tube 3b.
It is composed of As shown in FIG. 12, the intermediate ring 6 is divided into four parts in the circumferential direction,
It is composed of four ring pieces 6a to 6d. The two end faces of one of the ring pieces 6a are formed parallel to each other, so that the ring piece 6a is first extracted inside the gutter tube 1 so that the remaining ring pieces 6b and 6c are removed. , 6d can be sequentially extracted inside the gutter tube 1.

As shown in FIG. 14, at a predetermined position of the gutter tube 1, a water-blocking wall 12 functioning as a baffle plate for a water drainage channel 11 which may be formed along the outer surface of the gutter tube 1. Is installed. The water impervious wall 12 is provided between the two pipes 3a and 3b after removing the intermediate annular body 6.

That is, as shown in FIGS. 7 and 8, the impermeable wall 12 is made of a steel plate, and has an inner peripheral surface of the insertion port 9 of one of the pipes 3a and an insertion port 9 of the other pipe 3b. And a disc-shaped baffle plate 14 formed on the outer peripheral surface of the contact plate 13 over the entire circumference. In addition, the impermeable wall 12
Is constituted by twelve wall pieces 12A to 12L by being divided into twelve in the circumferential direction. Both end faces of one of the wall pieces 12L are formed parallel to each other. First, the wall pieces 12A to 12A to other than the wall piece 12L are formed.
By sequentially arranging 12K in the circumferential direction and finally inserting the wall piece 12L from the inside, the impermeable wall 12 can be formed.

As shown in FIGS. 9 and 10, on one side edge of each of the wall pieces 12A to 12L in the circumferential direction, a first connecting member 15 having a concave shape that opens forward is provided in a radial direction. At the same time, a concave second connecting member 16 that opens rearward is attached to the other side edge in the radial direction. Thereby, each wall body piece 12A ~ adjacent to each other
12L are the first connecting member 15 and the second connecting member 16 respectively.
Are connected to each other by slidably engaging in the radial direction a.

Hereinafter, a method of attaching the impermeable wall 12 to the gutter tube 1 will be described. As shown in FIG. 11, first, a gutter pipe 1 is laid under the ground of the embankment 2 by a propulsion method. Thereafter, a worker enters the inside of the gutter tube 1 and removes the countersunk bolt 7 of the intermediate ring member 6. Then, as shown by a virtual line in FIG.
a is drawn inside the gutter tube 1, and the remaining annular pieces 6 b, 6 c, 6 d are sequentially drawn inside the gutter tube 1. Thus, as shown in FIG. 13, the intermediate ring 6 can be removed from the inside of the gutter tube 1, and a gap 17 is formed between the one tube 3a and the other tube 3b. Thereafter, in order to prevent earth and sand from flowing into the pipe from the gap 17, a chemical is injected into the earth and sand around the gap 17 from inside the gutter pipe 1.

Then, as shown in FIGS. 1 and 2, a hydraulic jack 18 is prepared in the pipe. In addition, this hydraulic jack 18
Is provided with an arcuate contact plate 19 which is applied to the bottom of the inner peripheral surface of the insertion port 9 of the one tubular body 3a and the inner peripheral surface of the insertion port 9 of the other tubular body 3b. .

Then, the abutment plate 19 of the hydraulic jack 18 is connected to the inner peripheral surface of the insertion port 9 of one tube 3a and the other tube 3b.
And set it against the inner peripheral surface of the insertion port 9
The hydraulic jack 18 is used to cut off the impermeable wall from inside the gutter tube 1.
The twelve wall pieces 12A to 12L are sequentially pressed one by one in the radial direction A, and are pressed into the ground through the gap 17. In this case, the press-fitting is performed until the contact plate portion 13 comes into contact with the inner peripheral surface of each insertion port 9 as shown by each imaginary line in FIGS. In addition, the order of press-fitting is as follows: first, the wall pieces 12B to 12K are sequentially arranged in the circumferential direction as shown in FIGS. 3 and 4, and then the wall pieces 12A are arranged as shown in FIG. Finally, FIG.
By inserting the wall piece 12L from the inside as shown in FIG. 7, all the wall pieces 12A to 12L can be arranged over the entire circumference as shown in FIG. 7, and the impermeable wall 12 is completed.

At this time, as shown in FIGS. 9 and 10, each of the adjacent wall pieces 12A to 12L is connected to the first
Since the connecting member 15 and the second connecting member 16 are connected by being engaged with each other, even if an external force acts on the impermeable wall 12, the adjacent wall pieces 12A to 12L are separated in the circumferential direction. There is no.

Thereafter, the hydraulic jack 18 is carried out from the inside of the gutter tube 1 and, as shown in FIG. 8, the inner peripheral surfaces of the insertion ports 9 of the two tubular bodies 3a and 3b and the contact plate portion 13 are welded all around. Secure with 20. As a result, the impermeable wall 12 is fixedly attached to the gutter pipe 1, and the space between the impermeable wall 12 and both pipes 3a and 3b is sealed off.

As described above, each of the wall pieces 12A to 12L
The gutters 1 are pressed into the ground from inside the gutter tube 1 and arranged over the entire circumference, so that the impermeable wall 12 can be mounted around the gutter tube 1 from inside the gutter tube 1. Therefore, it is not necessary to dig up the embankment 2 to mount the impermeable wall 12, so that the road 4 does not have to be closed off, and even when the laying position of the gutter tube 1 is very deep, it is easy. The impermeable wall 12 can be mounted around the gutter tube 1. Further, as shown in FIG. 14, after the water impervious wall 12 is provided, the water impervious wall 12
Can be interrupted on the way.

In the above embodiment, as shown in FIG. 1, the wall pieces 12A to 12L of the impermeable wall 12 are pressed into the ground. Is also good. In the above embodiment, as shown in FIG.
Has a four-part structure, but a multi-part structure other than the four-part structure may be used according to the size of the gutter tube 1 or the like. Similarly,
As shown in FIG. 7, the impermeable wall 12 has a twelve-segment structure, but may have a multi-segment structure other than the twelve-segment structure according to the size of the gutter tube 1 or the like.

In the above embodiment, the impermeable wall 12 is made of a steel plate, but is not limited to a steel plate and may be made of a resin or concrete. Hereinafter, another embodiment of the present invention will be described with reference to FIGS.

Injection holes 26 are formed at two locations before and after the backing plate portion 13 of the water impermeable wall 12 and open to the inner and outer peripheral surfaces.
These two injection holes 26 are distributed to the front and rear of the baffle plate 14.

According to this, from the inside of the gutter tube 1 to the impermeable wall 12
After mounting, the filler material 27 is injected from both the injection holes 26, whereby the filler material 27 is surrounded by the end surfaces of the two pipes 3a and 3b, the outer peripheral surface of the backing plate portion 13, and the surrounding earth and sand. The space is filled, and further, the inside of the first connecting member 15 and the inside of the second connecting member 16 of each of the wall pieces 12A to 12L are filled. As the filler 27, a material that is liquid at the time of injection and solidifies after the injection (for example, concrete, urea resin, or the like) is used. Water can be reliably stopped (sealed) between the joints of the pieces 12A to 12L and between the impermeable wall 12 and the two pipes 3a and 3b.

[0022]

As described above, according to the present invention, each piece is pressed into the ground from the inside of the gutter pipe and arranged all around, so that the impermeable wall is formed from the inside of the gutter pipe around the gutter pipe. Can be mounted on Therefore, it is not necessary to dig up the dike to install the impermeable wall. Therefore, even when a road is provided on the dike, it is not necessary to shut off the road. Even if the laying position is very deep, the impermeable wall can be easily attached around the gutter pipe. If necessary, it is also possible to seal between the impermeable wall and the pipe from inside the gutter pipe. Ma
In addition, each piece adjacent to each other has a first connection member and a second connection member.
Since the members are connected by engaging each other,
Even if an external force acts on the water wall, each adjacent piece will
There is no separation.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view for explaining a procedure of a method of attaching a water impervious wall to a gutter pipe according to an embodiment of the present invention.

FIG. 2 is a view taken along the line XX in FIG.

FIG. 3 is a front view showing a press-fitting procedure of each piece of the impermeable wall.

FIG. 4 is a front view showing a press-fitting procedure of each piece of the impermeable wall.

FIG. 5 is a front view showing a press-fitting procedure of each piece of the impermeable wall.

FIG. 6 is a front view showing a press-fitting procedure of each piece of the impermeable wall.

FIG. 7 is a front view of the impermeable wall.

FIG. 8 is a cross-sectional view of the gutter pipe with the impermeable wall attached.

FIG. 9 is a front view of a connecting member provided on each piece of the impermeable wall.

FIG. 10 is a plan view of a connecting member provided on each piece of the impermeable wall.

FIG. 11 is a cross-sectional view of the gutter pipe with the intermediate ring attached.

FIG. 12 is a front view of an intermediate ring.

FIG. 13 is a cross-sectional view of the gutter tube after removing the intermediate annular body.

FIG. 14 is a cross-sectional view of an embankment in which gutter pipes and impermeable walls are embedded.

FIG. 15 is a cross-sectional view of a gutter pipe in a state where a water impermeable wall is attached according to another embodiment of the present invention.

FIG. 16 is a plan view of a connecting member of each piece of the impermeable wall according to another embodiment of the present invention.

FIG. 17 is a cross-sectional view of a conventional embankment in which gutter pipes and impermeable walls are embedded.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gutter pipe 2 Embankment 3, 3a, 3b pipe 6 Intermediate part ring 12 Water impervious wall 12A-12B Wall piece 17 Clearance a Radial direction

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-146398 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E02B 3 // 04-3/10 E21D 9 / 06 311

Claims (2)

(57) [Claims] When mounting a water impervious wall around a gutter pipe buried in a bank, the water impervious wall is constituted by a plurality of pieces divided in a circumferential direction of the gutter pipe, and a plurality of pipes are connected. The gutter pipe constructed by the propulsion method is laid in the ground, the intermediate ring inserted between the specific pipe bodies is removed from the inside of the gutter pipe, and the specific pipe body and the pipe body are separated from each other. A gap is formed between the gutter pipes, and the pieces are sequentially pressed radially from the inside of the gutter pipe and pressed into the ground through the gap, and these pieces are arranged over the entire circumference . At this time, the pieces adjacent to each other are Each of these
The first connecting member and the second connecting member provided on the base are mutually connected.
A method for attaching a water-impervious wall to a gutter pipe by engaging with a gutter. 2. The first connecting member has a concave shape opening forward.
Is formed on one side edge of each piece in the circumferential direction.
And the second connecting member is formed in a concave shape that opens rearward,
Attached radially to the other side edge of the piece in the circumferential direction
2. The gutter pipe according to claim 1,
How to install the water wall.