JPH10227389A - Lining pipe manufacturing device and lining pipe construction method using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently manufacture a pipe by providing an outer face roller and an inner face roller pinching a belt-like body and joining together the side edges, a joint mechanism part circumferentially rotating in a duct, and a plurality of annular guide rollers, and providing a guide part supporting the joint mechanism part and rotating while contacting with the inner face of the duct. SOLUTION: The outer face roller 33b and the inner face roller 33a of a joint mechanism part 3 pinches a long belt-like body 6, and joins together the side edges so as to form a lining pipe 60. The lining pipe 60 is left in a duct, the joint mechanism part 3 moves circumferentially in the duct, and joins together and winds up the belt-like body 6 so as to add the lining pipe 60 to itself. At this time, guide rollers 42 are rotated while contacting with the inner face of the duct, accompanying the circumferential movement of the joint mechanism part 3. A guide part 4 supports the joint mechanism part 3, the outer face roller 33b does not contact with the inner face of the duct, and hence the joint mechanism part 3 can circumferentially move in the duct smoothly and manufacture a pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe making apparatus for forming a lining pipe in a sewer, and a lining pipe construction method for forming a lining pipe in a sewer having an uneven inner peripheral surface. It is about.

[0002]

2. Description of the Related Art In general, a long profile formed in a long strip shape having joints on both side edges is continuously supplied into a sewer, and the long profile is spirally formed in the sewer. A method of forming a lining pipe in a sewer by joining the joints of the long profile which are in contact with each other while winding the long profile is known.

Conventionally, in this method of constructing a lining pipe, a pipe-forming operation for joining mutually joined joints while spirally winding a long profile is performed by a guide roller arranged in an annular shape and a pipe culvert. It has been proposed to use a pipe-making apparatus provided with a joining mechanism that moves around the inner surface (see, for example, Japanese Patent Application Laid-Open No. H5-16939).

[0004]

However, in the case of the above-mentioned conventional pipe making apparatus, since the joining mechanism is configured to move while moving around the inner surface of the culvert, there are irregularities in the culvert. In such a case, the joining mechanism is fitted into the unevenness and cannot move around, so that the pipe making operation is stopped.

[0005] In particular, in the case of a shield secondary lining method in which a plurality of segments are connected to form a lining pipe in a pipe with an uneven inner peripheral surface, the above-mentioned conventional pipe-making apparatus is used. Since the joining mechanism portion is easily fitted into the uneven portion of the sewer, it is impossible to smoothly perform the pipe production work of the lining pipe.

The present invention has been made in view of the above circumstances, and provides a lining pipe manufacturing apparatus and a lining pipe construction method capable of efficiently and comfortably forming a lining pipe. The purpose is.

[0007]

According to the present invention, there is provided a lining pipe manufacturing apparatus for solving the above-mentioned problems, wherein a long strip having joints at both side edges is spirally wound while forming the strip. A pipe making device that joins the side edges of the body to form a lining pipe in the sewer, and forms a lining pipe in the rear along with this formation, and proceeds in the sewer, and the band-shaped body is sandwiched It has an outer roller and an inner roller that join the side edges of the body, has a joining mechanism that moves around the inside of the sewer, and has a plurality of guide rollers arranged in an annular shape, and the outer roller is the inner surface of the sewer And a guide portion that supports the joining mechanism portion so as not to contact with the inner surface and rotates in contact with the inner surface of the sewer.

(Operation) The outer roller and the inner roller of the joining mechanism section sandwich the long strip and join the side edges of the strip to form a lining tube. The formed lining pipe is left in the sewer, and the joining mechanism moves around in the sewer, joins the band-shaped body, and rolls the lining pipe to add the lining pipe. At this time, the guide part rotates in contact with the inner surface of the sewer with the orbital movement of the joining mechanism part. The guide section supports the joining mechanism, and since the outer roller of the joining mechanism does not contact the inner surface of the culvert, the joining mechanism can smoothly move around the inside of the culvert and the pipe-making apparatus can smoothly move. You can proceed in the sewer.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

First, as shown in FIG. 1, an outline of the overall configuration of a shield secondary lining method using a pipe producing apparatus will be described. The long profile 6 is fed out from the supply device 7 installed on the ground into the manhole 51 and supplied into the sewer 5. Further, a delivery device 8 for stabilizing the supply state of the long profile 6 is provided in the culvert 5, and the long profile 6 is supplied deep inside the culvert 5 so that the lining pipe 60 having a long distance can be supplied. It can be constructed. The delivery device 8 can be operated from the ground by a hydraulic drive unit 81 installed on the ground.

As shown in FIG. 2, the duct 5 is formed in a cylindrical shape by connecting a plurality of box-shaped segments 50 together.
Therefore, the inner peripheral surface of the duct 5 is in a state in which irregularities due to the segments 50 are formed.

As shown in FIG. 3 (a), the long profile 6 is formed in a long strip shape, and a plurality of ribs 61 project from the outer surface thereof along the longitudinal direction. In addition, on one side edge of the long profile 6, along the longitudinal direction,
The joining rib 6 having a lower protruding height than the rib 61
2 are protruding. On the other hand, a joining groove 63 to which the joining rib 62 is joined is formed along the longitudinal direction on the inner surface of the rib 61 on the other side edge of the long profile 6.
Then, as shown in FIG.
By joining the joining rib 62 to the joining groove 63 while spirally winding the lining, the lining tube 60 can be formed.

As shown in FIG. 4 and FIG.
Lining pipe 6 consisting of long profile 6 in sewer 5
0, and includes a forming frame 22, a guide roller 2, a joining mechanism 3, and a guide 4.

The guide roller 2 is rotatably mounted on each shaft 10 of the forming frame 22. The roller body is made of a hard synthetic resin or metal, and abuts against the inner surface of the belt-shaped member 6. On the outer periphery of the molding frame 22, they are annularly arranged at predetermined intervals at predetermined intervals. Molding frame 22
Is formed in a circular shape corresponding to the cross-sectional shape of the sewer pipe, and is bendable in the outer diameter direction with a link mechanism.
And it has lateral rigidity. The molding frame 22 forms a link chain in which a plurality of link bodies are connected. In the present embodiment, the forming frame 22 includes a link chain of 24 link bodies, but the number is not limited. As shown in FIGS. 6 and 7, each link body has a rod-shaped shaft portion 10 of a required length.
And a plate-like link arm 12 rotatably connected via a bearing 11 between adjacent shaft portions at both front and rear ends of the shaft portion 10.

The link arms 12 can be bent outwardly on the basis of 180 °, but are prevented from being bent inside. For this reason, a center fold prevention mechanism is provided, and FIG.
(A) and (b) show examples. That is, a main stopper 14 protrudes from one end of the link arm 12 (I), and a stopper receiver 15 protrudes from the link arm 12 (I) to the other link arm 12 (II). Since the main stopper 14 and the stopper receiver 15 are in contact with each other, the center bending is prevented. Reference numeral 16 denotes a sub-stopper for describing the angle of external bending (α).

The guide section 4 has a plurality of guide rollers 42 arranged annularly on the guide frame 41 so as to be in contact with the inner surface of the sewer. It is linked to The guide roller 42 is supported by a support shaft,
Each support shaft is rotatably connected to each end by a link arm having a flat plate shape. Accordingly, each link arm forms an endless annular guide frame 41 that can be bent. Each guide frame 41 is set to a length such that the guide roller 42 is in contact with the inner peripheral surface of the sewer pipe. A belt may be attached to the outer surface of the guide roller 42.

The guide frame 41 and the forming frame 22 are connected by a plurality of connecting portions 23 at regular intervals. The support shaft of the inner roller 33a and the guide roller 4
The two support shafts are connected by a chain 43. Therefore, the driving force of the inner roller 33a is transmitted to the guide roller 42, and the guide roller 42 rotates with the rotation of the joining mechanism 3. In the connection by the chain 43, a gear is interposed so that the rotational movement amount of the inner roller 33 and the guide roller 42 as viewed from the center of the tube is the same, and the respective unit time movement amounts are the same.

The joining mechanism 3 is fixed to the front end of the molding frame 22, and is configured to rotate a pair of outer roller 33b and inner roller 33a from a hydraulic motor via a gear mechanism, as shown in FIG. Further, an inner roller 33a along the inner surface of the long profile 6 and an outer roller 33b having a flange 331 fitted between the ribs 62 of the long profile 6 are provided. Then, the joining mechanism unit 3 joins the joining rib 62 and the joining groove 63 of the long profile 6 by rotating while holding the long profile 6 between the inner roller 33a and the outer roller 33b. While moving around the inner surface of the sewer 5, the lining pipe 5 is formed.

When the joining mechanism 3 rotates, the pipe-making apparatus 1 moves forward in the sewer direction by the engagement and guiding action between the flange 331 of the outer roller 33b and the rib 62 of the long profile 6. Since the starting end of the lining pipe is fixed to the inner surface of the sewer under the force, the lining pipe advances in the sewer 5. At this time, the guide roller 2 is connected to the lining pipe 60 to be formed.
And guides the degree of extension of the lining tube 60.

Further, when the pipe-making apparatus 1 advances in the duct 5, the guide portion 4 rotates while being in contact with the inner peripheral surface of the pipe 5 while supporting the weight of the pipe-making apparatus 1. Joining mechanism 3
However, it is possible to prevent the pipe-making apparatus 1 from being stopped by being fitted into the unevenness of the segment 50 constituting the sewer 5, and to perform the shield secondary lining operation efficiently and comfortably.

Next, the diameter of the lining tube 60 is increased,
A construction method when the lining pipe 60 is attached to the inner peripheral surface of the sewer 5 will be described. First, the hydraulic cylinder 45
The fixing rod 46 is extended by the guide portion 4 on the inner surface of the sewer 5.
Is fixed. Then, the gear of the chain 43 connecting the inner roller 33a and the guide roller 42 is released. The starting end side of the lining pipe 60 is fixed to the sewer 5. In this state, the outer roller 33 b and the inner roller 33 of the joining mechanism 3 are
is driven to rotate, the long profile 6 is fed, and the lining tube 60 is rotated. At this time, since the starting end side of the lining pipe 60 is fixed to the sewer 5, the joining rib 62 and the joining groove 63 of the long profile 6 that are in contact with each other slide, and the lining pipe 60 expands from the starting end side. It is diametered and attached to the inner peripheral surface of the sewer 5.

In this embodiment, the cylindrical pipe 5
Although the pipe making apparatus 1 in which the cylindrical lining pipe 60 is formed is described, the invention is not particularly limited to such a shape, and the rectangular lining pipe 5 is provided in the rectangular pipe 5. The pipe making device 1 configured to form the pipe 60 may be used.

Further, in this embodiment, a shield secondary lining method for forming a lining pipe 60 in a pipe 5 having an uneven inner peripheral surface by connecting a plurality of segments 50 is described. In addition to such a shield secondary lining method, the pipe making apparatus 1 can be effectively used as long as the pipe culvert 5 has an uneven inner peripheral surface due to aging due to aging, cracks due to an earthquake, or the like. Can be used.

Further, in this embodiment, a case is described in which a long profile 6 as shown in FIG. 3 is used, but a long profile file 9 as shown in FIG.
It may be. That is, this long profile 9
Has a band-plate-shaped main body member 91 and a band-shaped fitting member 92 that joins adjacent side edges when the main body member 91 is spirally wound. The main body member 91 is
A fitting portion 91b provided on each side edge of the band-shaped substrate main body 91a, and a plurality of reinforcing ribs 9 having a T-shaped cross section arranged at equal intervals on the back surface of the substrate main body 91a.
1c.

Each fitting portion 91b rises at a right angle from each side edge of the board main body 91a and is bent outward at right angles, and further, its tip is bent at right angles toward the substrate main body 91a. It has a U-shaped cross section. At the tip of each fitting portion 91b, there is provided an engaging portion 91d projecting in a semi-spherical cross section toward the inside of the U-shaped cross section.

The belt-shaped fitting member 92 has a U-shaped cross section. As shown in FIG. 10B, the main body member 91 is spirally wound, and the adjacent fitting portions 91b are connected to each other. When they are brought into contact with each other, the fitting portions 91b in the butted state can be integrally fitted.

[0027] Such a long profile 9 is
After the main body member 91 is formed into a tubular shape along the inner peripheral surface of the sewer 5 by the pipe making device 1 disposed therein, the fitting member 9 is formed.
2 are fitted so as to integrally include adjacent fitting portions 91b. Alternatively, before the main body member 91 is introduced into the pipe manufacturing apparatus 1, the fitting member 92 is inserted into one of the fitting portions 91b.
Are fitted in advance, and after the main body member 91 is formed into a tubular shape by the pipe producing apparatus 1, the fitting member 92 is
The other fitting portion 9 in the tubular main body member 91
1b.

[0028]

As described above, according to the pipe making apparatus of the present invention, since the guide portion supports the joining mechanism so that the outer roller does not contact the inner surface of the sewer, unevenness is formed in the sewer. Even if there is a step or a step, it is possible to prevent the external roller from getting stuck in these irregularities and steps and stop the pipe making work, and to efficiently and comfortably install the lining pipe. It can be performed.

Further, according to the lining pipe construction method of the present invention, it is possible to efficiently prevent the external roller from being fitted into the concave portion of the segment in the sewer or the gap between the segments, thereby stopping the pipe-making operation, and efficiently. You can work comfortably.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view schematically showing an overall configuration of a shield secondary lining method using a pipe manufacturing apparatus.

FIG. 2 is a partial perspective view showing the inside of a sewer.

FIGS. 3A and 3B are a partial perspective view showing a long profile used in a shield secondary lining method and a cross-sectional view showing a joining state of the long profiles.

FIG. 4 is a sectional view of a main part showing a secondary shield lining method by a pipe manufacturing apparatus.

FIG. 5 is a perspective view showing a pipe producing apparatus.

FIG. 6 is a partial cross-sectional plan view of a molding frame.

FIG. 7 is a view taken in the direction of the arrow V in FIG. 6;

FIGS. 8A and 8B are structural views of a link body of a molding frame.

FIG. 9 is a cross-sectional view showing a joining state of a long profile by a joining mechanism.

FIGS. 10A and 10B are a cross-sectional view and a partially exploded perspective view showing another embodiment of the long profile, showing a joined state of the long profile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipe production apparatus 2 Guide roller 22 Forming frame 3 Joining mechanism part 33a Inner roller 33b Outer roller 4 Guide part 41 Guide frame 42 Guide roller 5 Sewer 50 Segment 6 Long profile 60 Lining pipe 62 Joining rib (joining part) 63 Joining Groove (joint)

Claims (3)

[Claims] 1. A lining pipe is formed in a sewer by joining side edges of a long strip having a joint at both side edges while spirally winding the strip. A pipe making device that travels inside a sewer while forming a lining pipe in the rear, and has an outer roller and an inner roller that join side edges of the band with the band interposed therebetween, and the inside of the sewer. And a plurality of guide rollers arranged in an annular shape, supporting the joining mechanism so that the outer roller does not contact the inner surface of the sewer, and rotating in contact with the inner surface of the sewer. A lining pipe manufacturing apparatus, comprising: a guide section. 2. A method for constructing a lining pipe, wherein a lining pipe is formed by using the lining pipe manufacturing apparatus according to claim 1 in a pipe with an uneven inner peripheral surface. 3. A lining pipe forming apparatus according to claim 1, wherein a lining pipe is formed in a culvert in which an inner peripheral surface is made uneven by connecting a plurality of segments in a cylindrical shape. Lining pipe construction method.