JP2016000490A - Belt-like body including reinforcement material for pipe production of corrected pipe and pipe production method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a belt-like body including a reinforcement material for pipe production of a corrected pipe which allows use of a reinforcement material high in yield strength and construction with large earth covering or use of large diameters and a pipe production method using it.SOLUTION: A belt-like body 100 including a reinforcement material for pipe production of a corrected pipe is for producing a corrected pipe by winding spirally and includes a belt-like substrate 101, a rib 102 erected from the substrate 101 and a metal-made reinforcement strip 104 which is embedded so that no clearance is formed throughout the whole length of the rib 102. In the boundary between the substrate 101 and the rib 102, an inclined surface 105 which is inclined in the direction of protrusion from the outer surface of the rib 102 is formed. The end part of the reinforcement strip 104 on the side of the substrate 101 extends to the inside of the substrate 101.

Description

  The present invention relates to a strip containing a reinforcing material for rehabilitating pipes used when rehabilitating rehabilitating pipes for rehabilitating existing pipes such as aged sewer pipes, sewer pipes, agricultural water pipes, and gas pipes, and The present invention relates to a pipe making method using the same.

  Conventionally, for rehabilitating pipes formed from a strip-shaped substrate, a plurality of ribs standing upright (in the vertical direction) from the substrate, and a reinforcing member made of a metal plate embedded in each rib over the entire length of each rib A band-like body containing a reinforcing material has been proposed (see, for example, Patent Document 1).

  The reinforcing material of the band-like body with the reinforcing material disclosed in Patent Document 1 is a plurality of unit reinforcing materials in which the left and right side surfaces facing each other are movably overlapped in contact with each other, or the upper and lower end surfaces facing each other It is formed by a plurality of unit reinforcing members fitted to each other so as to be movable in contact with each other.

  As described above, by providing the unit reinforcing material in a direction perpendicular to the substrate, it is possible to have high flat strength when the reinforcing material-containing band-like body is embedded.

JP 2011-93251 A

  By the way, in the strip | belt body with a reinforcing material disclosed by the said patent document 1, in order to rehabilitate a pipe line with a large earth covering or a large diameter, it is necessary to use a reinforcing material with high yield strength.

  However, when a reinforcing material with high yield strength is used, buckling occurs because the end on the inner peripheral side (board side) of the reinforcing material cannot withstand compression due to changes in the radius of curvature due to pipe manufacturing. There is an inconvenience that undulation occurs on the inner peripheral side of the substrate of the band-shaped body containing the reinforcing material. For this reason, there is a problem that it is difficult to perform construction with a large earth covering or a large diameter by using a reinforcing material having high yield strength. That is, when a reinforcing material with high yield strength is bent and deformed, a tensile force acts on the outer peripheral side of the reinforcing material and a compressive force acts on the inner peripheral side of the reinforcing material. In this case, buckling occurs without being able to withstand the compressive force.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to enable the use of a reinforcing material having a high yield strength so that construction with a large earth covering or a large diameter is possible. It is an object of the present invention to provide a strip-like body with a reinforcing material for pipe making of rehabilitated pipe and a pipe making method using the same.

  As means for solving the above-mentioned problems, a strip-like body with a reinforcing material for rehabilitation pipe making according to the present invention is configured as follows.

  That is, a strip-like body with a reinforcing material for pipe rehabilitation according to the present invention is a belt-like body with a reinforcing material for pipe making a rehabilitation pipe that is wound in a spiral shape to form a rehabilitation pipe, and a substrate having a strip plate shape and the substrate And a reinforcing member made of a metal plate embedded so as not to form a gap over the entire length of the rib.

  Further, in the strip-like body for reinforcing a pipe for making a rehabilitated pipe according to the present invention, an inclined surface inclined in a direction protruding from the outer surface of the rib is formed at a boundary portion between the substrate and the rib, The end portion on the substrate side extends to the inside of the substrate.

  According to the strip-shaped body with the reinforcing material for pipe making of rehabilitated pipe having such a configuration, when the roller that deforms the strip-shaped body with the reinforcing material with a predetermined radius of curvature at the time of pipe production and the inclined surface contact (contact), the inclined surface Will be pressed to the reinforcing material side. Thereby, since the movement (movement) of a reinforcing material is restrained, it can suppress that the edge part by the side of the board | substrate of a reinforcing material buckles at the time of pipe making. In addition, since the end portion of the reinforcing material on the substrate side extends to the inside of the substrate and the end portion of the reinforcing material on the substrate side is restrained (fixed) by the substrate, the reinforcing material substrate at the time of pipe making The buckling of the side end can be suppressed. In addition, since no gap is formed between the rib and the reinforcing material, there is no space for the reinforcing material to move in the rib when the band with reinforcing material is deformed with a predetermined radius of curvature during pipe making. , Buckling (waving) of the reinforcing material can be suppressed. By these, since it can suppress that the edge part by the side of the board | substrate of a reinforcing material is buckled, a reinforcing material with high yield strength can be used, and construction with a large earth covering or a large diameter can be performed. .

  Specific examples of the present invention include the following.

  In the strip-shaped body with a reinforcing material for pipe rehabilitation pipe according to the present invention, the cross-sectional shape of the reinforcing material is rectangular when viewed from the extending direction of the strip-shaped body with the reinforcing material, and the direction in which the reinforcing material stands upright from the substrate. May be at least 15 times the length of the reinforcing material in the direction perpendicular to the direction erecting from the substrate.

  Furthermore, the pipe manufacturing method using the strip | belt body containing the reinforcing material for pipe renovation pipe manufacture by this invention is comprised as follows.

  That is, the pipe manufacturing method using the strip-shaped body with the reinforcing material for pipe rehabilitation according to the present invention is embedded so that no gap is formed over the entire length of the rib plate-like substrate, the rib standing upright from the substrate, and the rib. And a reinforcing material made of metal plate, and a method of making a pipe containing reinforcing material for pipe making of rehabilitated pipe, wherein the band made of reinforcing material for pipe making of rehabilitated pipe supplied to a pipe making machine is spirally formed. The rehabilitated pipe is installed while the rehabilitated pipe is piped by sequentially joining one side edge and the other side edge of the strip-shaped body containing the reinforcing material for the rehabilitated pipe making adjacent to each other. It is premised on the pipe making method to be inserted into the pipe.

  Moreover, the pipe manufacturing method using the reinforcing material containing the reinforcing material for pipe making according to the present invention is provided at the boundary part between the substrate and the rib of the reinforcing material containing the reinforcing material for pipe making used in the pipe making method. The rehabilitated pipe-making reinforcement is formed by a plurality of rollers formed so as to be inclined in a direction protruding from the outer surface of the rib and rotatably supported in the circumferential direction of the annular guide frame of the pipe-making machine. When the ribs of the strips containing material are supplied to the pipe making machine in a state where the ribs of the guide frames face the radially outer side of the guide frame, among the plurality of rollers, the strips containing the reinforcing material for pipes made of rehabilitation pipes have a predetermined curvature. A roller deformed with a radius is brought into contact with the inclined surface.

  According to the pipe manufacturing method using the strip-shaped body with the reinforcing material for pipe renovation pipe having such a configuration, the roller and the inclined surface that deform the strip-shaped body with the reinforcing material with a predetermined curvature radius at the time of pipe manufacturing (contact). When it does, an inclined surface will be pressed to the reinforcement side. Thereby, since the movement (movement) of a reinforcing material is restrained, it can suppress that the edge part by the side of the board | substrate of a reinforcing material buckles at the time of pipe making. In addition, since no gap is formed between the rib and the reinforcing material, there is no space for the reinforcing material to move in the rib when the band with reinforcing material is deformed with a predetermined radius of curvature during pipe making. , Buckling (waving) of the reinforcing material can be suppressed. By these, since it can suppress that the edge part by the side of the board | substrate of a reinforcing material is buckled, a reinforcing material with high yield strength can be used, and construction with a large earth covering or a large diameter can be performed. .

  Specific examples of the present invention include the following.

  In the pipe making method using the strip-shaped body for reinforcing pipe making according to the present invention, the rehabilitating pipe is preferably supported by a plurality of rollers rotatably supported in the circumferential direction of the annular guide frame of the pipe making machine. When the rib of the band-shaped body with reinforcing material for pipe making is supplied to the pipe-making machine in a state of facing the radially outer side of the guide frame, the band-shaped body with reinforcing material for pipe making of rehabilitated pipe among the plurality of rollers is A roller other than the roller to be deformed with a predetermined radius of curvature is not brought into contact with the inclined surface. If comprised in this way, since the inclined surface of a strip | belt body with a reinforcing material is not pressed by rollers other than the roller which deform | transforms with a predetermined curvature radius at the time of pipe manufacture, it will not apply an extra force to a strip | belt body with a reinforcing material. can do.

  According to the present invention, a reinforcing material having a high yield strength can be used, and a strip-like body with a reinforcing material for rehabilitating pipes that has a large earth covering or can be constructed with a large diameter, and pipe making using the same A method can be provided.

(A) is sectional drawing which shows an example of the strip | belt-shaped member used for the pipe manufacturing method of the rehabilitation pipe | tube of this invention. (B) is the elements on larger scale of a strip | belt-shaped member. It is sectional drawing explaining the joining process of the strip | belt-shaped member of FIG. (A) is sectional drawing explaining the process before joining of a strip | belt-shaped member. (B) is sectional drawing explaining the post-joining process of a strip | belt-shaped member. It is a perspective view which shows an example of the pipe making machine which enforces the pipe making method of the rehabilitation pipe | tube of this invention. It is a perspective view which abbreviate | omits and shows a drive mechanism of the pipe making machine of FIG. It is a top view which shows the pinch roller of the drive mechanism of FIG. 4 with a strip | belt-shaped member. It is a figure which shows a mode that the inclined surface of a strip | belt-shaped member and a roller are contacting. It is a longitudinal cross-sectional view of the underground pipe line explaining one Embodiment of the pipe manufacturing method of the rehabilitation pipe | tube of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, with reference to FIGS. 1-3 and FIG. 7, the structure of the strip | belt-shaped member 100 and the pipe making machine 1 is demonstrated.

  As shown in FIGS. 1A and 1B, the belt-like member 100 is formed by extruding flexible plastic, for example, polyethylene, polypropylene, etc., and is wound into a hollow cylindrical shape for transportation. It is formed into a roll D (see FIG. 7) and transported to the site. The belt-like member 100 is formed by a plurality of (three in the embodiment) ribs 102 having an I-shaped cross section standing on the back surface of a belt-like substrate 101 so as to be perpendicular to the substrate 101. Then, the other side edge portion (hereinafter referred to as the other side edge portion) of the substrate 101 in the adjacent belt-like member 100 is disposed on one side edge portion (hereinafter referred to as the one side edge portion) of the substrate 101. In order to be able to do so, a stepped portion 103 is formed that is stepped down to the back side by the thickness of the substrate 101. Further, a reinforcing strip 104 such as a steel plate is embedded in each rib 102. The reinforcing strip 104 is made of a material having a relatively high yield strength (0.2% yield strength). The reinforcing strip 104 is embedded in the rib 102 and the substrate 101 so as not to form a space between the outer surface of the reinforcing strip 104 and the rib 102 and the substrate 101 (covered by the rib 102 and the substrate 101). ing).

  Here, in this embodiment, as shown in FIG. 1B, an inclined surface inclined in a direction protruding from the outer surface of the rib 102 is formed at a boundary portion (connecting portion) between each rib 102 and the back surface of the substrate 101. 105 is formed. The inclined surfaces 105 are formed at both ends in a direction orthogonal to the direction in which the ribs 102 extend. The inclined surface 105 is formed such that the width of the rib 102 increases from the rib 102 side toward the substrate 101 side. Moreover, the angle of the inclined surface 105 with respect to the extending direction of the rib 102 and the extending direction of the substrate 101 can be arbitrarily set.

  Further, the end portion 104 a on the substrate 101 side (surface side) of the reinforcing strip 104 extends to the inside of the substrate 101. Specifically, the end 104 a of the reinforcing strip 104 is disposed between one side edge and the other side edge of the substrate 101. Further, the cross-sectional shape of the reinforcing strip 104 is rectangular when viewed from the direction in which the belt-shaped member 100 extends (from the front to the back of the page). The length H1 of the reinforcing strip 104 in the direction standing upright from the substrate 101 is about 15 times or more the length H2 of the reinforcing strip 104 in the direction perpendicular to the direction standing upright from the substrate 101. Note that the ratio between the lengths H1 and H2 of the reinforcing strip 104 shown in FIG. 1B is different from the actual ratio because of the space on the paper.

  Such a belt-like member 100 is manufactured by a pipe manufacturing method described later so that the back surface side of the substrate 101, that is, the side where the ribs 102 are erected is the outer peripheral surface side (in a state where the guide frame 2 is directed radially outward). Supplied to machine 1 and spirally wound. At this time, as shown in FIGS. 2A and 2B, the molten resin c is applied to one side edge (stepped portion 103) of the succeeding belt-like member 100 among the belt-like members 100 and 100 adjacent to each other. In addition, by superimposing one side edge of the subsequent belt-shaped member 100 coated with the molten resin c from the outside (the outer peripheral surface side of the preceding belt-shaped member 100) on the other side edge of the preceding belt-shaped member 100, One side edge (stepped portion 103) of the substrate 101 of the subsequent belt-like member 100 is arranged and joined to the other edge of the substrate 101 of the preceding belt-like member 100, and the rehabilitated pipe S (see FIG. 3).

  Next, the pipe making machine 1 will be described with reference to FIGS.

  As shown in FIG. 3, the pipe making machine 1 includes a guide frame 2 that spirally winds the belt-like member 100 and a plurality of guide rollers 3 that are rotatably provided around the guide frame 2 at intervals in the circumferential direction. And the other side edge of the belt-like member 100 that is provided in the guide frame 2 and is spirally wound and preceded, and the one side edge (stepped portion) that is subsequently supplied to the pipe making machine 1 103) and a drive mechanism 4 that sandwiches and feeds the adjacent belt-like members 100 and 100, and is provided in the guide frame 2 at the front stage of the drive mechanism 4, and the subsequent one of the adjacent belt-like members 100 and 100 In addition, the one-side edge portion 103 of the belt-like member 100 supplied to the pipe making machine 1 is softened, and the extrusion welding machine 5 discharges the molten resin c.

  The guide frame 2 is formed by integrally connecting a pair of front and rear annular frames 21 and 21 with a plurality of connecting members 22 at intervals in the circumferential direction. The guide frame 2 is divided into a plurality of pieces (in the embodiment, three pieces at 120 degrees), and the guide frame 2 is carried into a manhole as an opening in the divided state. Assembled in a ring.

  In addition, the annular frame 21 on the rear side with respect to the pipe making direction has a part of an arc bent in an L shape inward corresponding to a drive mechanism 4 and an extrusion welding machine 5 described later, An arcuate auxiliary frame 23 is positioned between the front and rear annular frames 21 and 21 at a portion corresponding to the bent portion 211 and is connected to the annular frame 21 forward in the pipe making direction via a connecting member 22.

  The guide roller 3 is rotatably supported via a bearing (not shown) around each connecting shaft 31 fixed between the front and rear annular frames 21 and 21 constituting the guide frame 2.

  However, the guide roller 3 corresponding to the bent portion 211 of the annular frame 21 on the front side with respect to the pipe making direction is rotatably supported between the auxiliary frame 23 and the rear annular frame 21. The guide rollers 3 provided between the annular frames 21 and 21 are approximately half the length.

  Here, the guide roller 3 is made of metal or synthetic resin, and a plurality of grooves 3 a (see FIG. 4) having a width and a depth that can accommodate each rib 102 of the belt-like member 100 with a margin are provided on the belt-like member 100. It is formed corresponding to each rib 102. Thereby, the outer peripheral surface of the guide roller 3 comes into contact with the back surface of the substrate 101 in the belt-like member 100 that forms the rehabilitation pipe S. In addition, when the belt-like member 100 whose back surface is restricted by the guide roller 3 and wound spirally is rotated 360 degrees once, the width of the belt-like member 100 with respect to the belt-like member 100 to which the preceding belt-like member 100 follows is set. It is set so as to be displaced toward the pipe making direction by a substantially equivalent length. That is, the guide roller 3 is adjusted in the tube axis direction mounting position of the guide roller 3 with respect to the connecting shaft 31 so that the groove 3a gradually shifts in the tube axis direction as it moves in the circumferential direction. Moreover, although not shown in detail, the roller part corresponding to the one side edge part (step-down part 103) of the strip | belt-shaped member 100 of the guide roller 3 is formed in a slightly smaller diameter than the other roller part.

  As shown in FIGS. 3 and 4, the drive mechanism 4 is attached to the guide frame 2 by utilizing the space between the bent portion 211 of the annular frame 21 and the auxiliary frame 23 on the rear side with respect to the pipe making direction in the guide frame 2. A fixed mounting frame 41, a pinch roller 42 that is a pair of an outer roller 421 and an inner roller 422 provided on the mounting frame 41, and a pinch roller 42 that is fixed to the mounting frame 41 and rotates via a speed reduction mechanism 43. And a hydraulic motor (not shown).

  Here, the speed reduction mechanism 43 shows only the sprocket 431 provided on the output shaft of the hydraulic motor provided on the mounting frame 41 and the rotation shaft of the outer roller 421 (only the sprocket provided on the rotation shaft of the outer roller 421 is shown in FIG. )), A chain 432 wound between the sprockets 431, and gears 433 and 433 provided on the rotation shaft of the outer roller 421 and the rotation shaft of the inner roller 422, respectively, and meshing with each other, and the hydraulic motor is driven to rotate. As a result, the outer roller 421 is rotated via the sprocket 431 and the chain 432, and the inner roller 422 is rotated in a direction opposite to the rotation direction of the outer roller 421 via gears 433 and 433 that are meshed with each other.

  Further, the outer surface roller 421 rotates in contact with the back surface of the substrate 101, that is, the inclined surface 105 on the side that becomes the outer peripheral surface of the renovated pipe S, between the adjacent ribs 102, 102 of the belt-shaped member 100. . At this time, the outer peripheral surface of the outer roller 421 is knurled so that the belt-like member 100 can be fed out without slipping.

  In addition, the roller of the position corresponding to the one side edge part (step-fall part 103) of the strip | belt-shaped member 100 of the outer surface roller 421 is formed in a slightly smaller diameter than another roller, and the knurling process is not given.

  On the other hand, for example, the inner surface roller 422 is formed in a cylindrical shape by a relatively hard material such as iron or plastic, and the outer peripheral surface thereof is the flat surface of the substrate 101 in the strip member 100, that is, the inner peripheral surface of the renovated pipe S. Rotates in contact with the surface on the side.

  The extrusion welding machine 5 is composed of a hot air machine unit, a plasticizing unit, and a welding rod supply unit in a body 51, takes in outside air and heats it, and blows out hot air through a blowing nozzle 52, and linear plastic such as polyethylene and polypropylene. A welding rod 10 (see FIG. 3) made of is introduced and heated and melted, and the molten resin c is extruded from the extrusion nozzle 53. The extrusion welding machine 5 is substantially in contact with one side edge (step 103) of the belt-like member 100 immediately before the blowout nozzle 52 and the extrusion nozzle 53 are supplied to the pinch roller 42 of the drive mechanism 4 in the pipe making machine 1. The guide frame 2 is fixed to the guide frame 2 using a space between the bent portion 211 of the front annular frame 21 and the auxiliary frame 23 so as to face each other in the state.

  The welding rod 10 is formed by linearly forming the same material as the plastic material forming the belt-like member 100, and is wound around the reel to be formed on the welding rod reel R so that it is in the vicinity of the extrusion welding machine 5. Positioned and provided on the guide frame 2.

  Here, the extrusion welder 5 is located inward of the guide frame 2 and is attached so that the blowout nozzle 52 and the extrusion nozzle 53 are substantially in contact with one side edge of the belt-like member 100. While the one side edge part of the member 100 can be reliably softened to a substantially molten state by hot air, the molten resin c can be reliably applied to the softened one side edge part.

  When the adjacent belt-like members 100, 100 are joined by the molten resin c, one side edge of the subsequent belt-like member 100 and one side edge of the subsequent belt-like member 100 are overlapped. It is preferable to soften the other side edge portion into a substantially molten state. In this case, a new heated air blowing nozzle may be disposed to face the other side edge of the preceding belt-like member 100.

  Next, referring to FIG. 3 and FIGS. 5 to 7, a manhole is used as an example of an opening for a pipe making method of the renovated pipe S for rehabilitating an existing pipe using the pipe making machine 1 configured as described above. The case where it does is demonstrated.

  First, the existing pipe K is provided with a manhole for every predetermined span. In the adjacent manhole, one manhole M1 is set as a starting manhole in the construction section, and the other manhole M2 is set as a reaching manhole, and a starting manhole is set. The case where the renovated pipe S is manufactured in the existing pipe K from M1 toward the reaching manhole M2 will be described.

  As preparation before construction, for the production of the rehabilitated pipe S, a transport roll D, a pipe making machine 1, a power unit P, etc., each having a belt-like member 100 wound thereon, are prepared. Is placed on the ground on the start manhole M1 side. The pipe making machine 1 is disassembled into a guide frame 2 provided with a guide roller 3, a drive mechanism 4, and an extrusion welder 5, and the guide frame 2 is further divided into a plurality of parts. And each element of the divided pipe making machine 1 is assembled after it is carried inside through the manhole M1. The assembled pipe making machine 1 is supported in a suspended state using a truck crane or the like in the starting manhole M1 (see FIG. 3).

  When such a preparatory work is completed, the belt-like member 100 is pulled out from the transport roll D placed on the ground and pulled into the starting manhole M1, and the drive mechanism 4 in the pipe making machine 1 supported in the starting manhole M1. Is supplied to the pinch roller 42 through the mounting frame 41, and is pulled out from the pinch roller 42 and sent out to the inner peripheral side of the guide roller 3 provided on the guide frame 2. Further, as shown in FIGS. 3 and 7, the pinch roller 42 (the outer roller 421 and the inner roller 422) deforms the belt-like member 100 supplied from the transport roll D to the pipe making machine 1 with a predetermined radius of curvature. It has a function to make it. The belt-like member 100 pulled out from the pinch roller 42 and sent out to the inner peripheral side of the guide roller 3 is spirally wound with its rib 102 guided by the groove 3 a of the guide roller 3.

  Here, in this embodiment, as shown in FIG. 5 and FIG. 6, when the belt-shaped member 100 is supplied to the pinch roller 42, the inclined surface 105 of the belt-shaped member 100 is formed by the outer surface roller 421 of the pinch roller 42. It contacts (abuts) the corner portion 421a. As a result, the inclined surfaces 105 formed on both sides of the rib 102 are compressed (pressed) toward the reinforcing strip 104, so that the vicinity of the end 104a of the reinforcing strip 104 is restrained, and the belt-like member 100 is wound. When this is done, the end 104a of the reinforcing strip 104 is less likely to buckle (wavy).

  The belt-like member 100 is wound in a 360-degree spiral along the guide roller 3 of the guide frame 2. At this time, the inclined surface 105 of the belt-like member 100 is not in contact with the guide roller 3. Further, unlike the pinch roller 42, the guide roller 3 does not have a function of deforming the belt-like member 100 with a predetermined curvature radius. Thereafter, when the belt-like member 100 reaches the pinch roller 42 of the drive mechanism 4 again, it is shifted in the pipe making direction by the width and is located in front of the pinch roller 42, and continuously on the other side edge. One side edge of the subsequent belt-like member 100 to be supplied is overlapped.

  Here, when the extrusion welding machine 5 is operated, the outside air is sucked and heated, and the heated air is blown out from the blowing nozzle 52 toward one side edge of the succeeding belt-like member 100 to be softened to a substantially molten state. At the same time, the welding rod 10 is drawn from the welding rod reel R to be heated and melted, and the molten resin c is pushed out from the extrusion nozzle 53 and applied to one side edge (stepped portion 103) of the subsequent strip member 100. In this case, the extrusion welder 5 is mounted on the inner side of the guide frame 2, and the extrusion nozzle 53 faces the one side edge portion of the succeeding belt-like member 100 in a substantially contact state, so that the molten resin c Can be reliably applied to one side edge of the belt-like member 100.

  In this state, as shown in FIG. 5, if the hydraulic motor of the drive mechanism 4 is driven to rotate, the outer roller 421 is rotated via the sprocket 431 and the chain 432, and the inner roller is rotated via gears 433 and 433 that mesh with each other. One side edge of the belt-like member 100 following the other side edge of the preceding belt-like member 100 by rotating 422 in a direction opposite to the rotation direction of the outer surface roller 421 and sandwiching the preceding belt-like member 100 and the following belt-like member 100 The parts (stepped part 103) are overlapped and sent out in the circumferential direction. At this time, one side edge portion of the subsequent belt-like member 100 is softened in a substantially molten state, and the molten resin c is applied to the one side edge portion, thereby adjacent to the pinch roller 42. The belt-like members 100 and 100 are fed out in the circumferential direction by integrally joining one side edge of the belt-like member 100 following the other side edge of the preceding belt-like member 100. That is, when the adjacent belt-like members 100 and 100 wound spirally along the guide roller 3 are sent out from the pinch roller 42, their other side edges and one side edge are wound spirally. In this state, they are joined together to form a pipe, and are sent out forward while rotating as the rehabilitation pipe S.

  Hereinafter, the belt-like member 100 has one side edge portion softened in a substantially molten state, and the molten resin c is applied to the one side edge portion and continuously supplied to the pinch roller 42 of the drive mechanism 4. In the pinch roller 42, one side edge part of the belt-like member 100 that follows the other side edge part of the preceding belt-like member 100 is integrally joined and extruded in the circumferential direction to continuously produce the regenerated pipe S. is there. Then, the renovated pipe S that has been piped is removed from the pipe making machine 1 by being pushed out while being rotated, and is inserted into the existing pipe K toward the reaching manhole M2 (see FIG. 7).

  In this way, the rehabilitated pipe S is produced from the belt-like member 100 that is continuously supplied to the pipe making machine 1, and the regenerated pipe S that has been produced is inserted into the existing pipe K while being rotated. If the pipe end of the rehabilitated pipe S is completed over the entire length of the construction target section of the existing pipe K after the end of the pipe reaches the reaching manhole M2, the pipe making machine is cut after the strip-like member 100 at the pipe end of the rehabilitated pipe S is cut. 1 is disassembled and removed from the starting manhole M1. That is, the drive mechanism 4 and the extrusion welder 5 are removed from the guide frame 2, and the guide frame 2 is divided into a plurality of parts and pulled up from the starting manhole M1.

  After that, although not shown in detail, a seal member is disposed in the gap between the existing pipe K and the both ends of the renovated pipe S so that water or the like does not enter the gap, and the backfill material is passed through the seal member. Fill the gap. When the backfill material is solidified, the rehabilitated pipe S is fixed to the existing pipe K by the solidified backfill material. Next, the protruding portion of the rehabilitation pipe S into the manholes M1 and M2 is cut off to complete the operation.

  As described above, according to the belt-like member 100 and the pipe manufacturing method using the same according to the present embodiment, the effects listed below can be obtained.

  In the present embodiment, as described above, the ribs 102 of the belt-shaped member 100 are formed by the plurality of rollers (pinch roller 42 and guide roller 3) that are rotatably supported in the circumferential direction of the annular guide frame 2 of the pipe making machine 1. When supplied to the pipe making machine 1 with the guide frame 2 facing outward in the radial direction, the outer roller 421 that deforms the belt-like member 100 with a predetermined radius of curvature and the inclined surface 105 of the belt-like member 100 are brought into contact with each other. In this case, the inclined surface 105 is pressed toward the reinforcing strip 104 when the outer surface roller 421 that deforms the belt-like member 100 with a predetermined radius of curvature and the inclined surface 105 come into contact with each other. Thereby, since the movement (movement) of the reinforcement strip 104 is restrained, it can suppress that the edge part 104a of the reinforcement strip 104 buckles at the time of pipe making. Further, by arranging the end 104a of the reinforcing strip 104 so as to extend to the inside of the substrate 101, the end 104a of the reinforcing strip 104 is restrained (fixed) by the substrate 101. The buckling of the end portion 104a can be suppressed. Further, since no gap is formed between the rib 102 and the reinforcing strip 104, there is a space in which the reinforcing strip 104 moves in the rib 102 when the belt-like member 100 is deformed with a predetermined radius of curvature during pipe making. Therefore, it is possible to suppress the reinforcing strip 104 from buckling (waving). As a result, the buckling of the end 104a of the reinforcing strip 104 can be suppressed, so that the reinforcing strip 104 having a high yield strength can be used, and construction with a large earth covering or a large diameter can be performed. .

  In the present embodiment, as described above, the ribs of the belt-shaped member 100 are provided by a plurality of rollers (pinch roller 42 and guide roller 3) that are rotatably supported in the circumferential direction of the annular guide frame 2 of the pipe making machine 1. When the pipe 102 is supplied to the pipe making machine 1 with the guide frame 2 facing radially outward, the guide roller 3 and the inclined surface 105 of the strip member 100 are not brought into contact with each other, thereby guiding the guide roller during pipe making. 3, the inclined surface 105 of the belt-like member 100 is not pressed, so that an extra force can be prevented from being applied to the belt-like member 100.

  In the present embodiment, as described above, the length H1 of the reinforcing strip 104 in the direction standing upright from the substrate 101 is 15 times or more of the length H2 in the direction perpendicular to the direction standing upright from the substrate 101 of the reinforcing strip 104. Is preferable.

-Other embodiments-
The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above-described embodiment, an example in which the three ribs 102 are provided on the belt-like member 100 has been described, but the present invention is not limited to this. In the present invention, the belt-like member 100 may be provided with one, two, or four or more ribs 102.

  Moreover, in the said embodiment, the example which makes length H1 of the direction which stands upright from the board | substrate 101 of the reinforcement strip 104 15 times or more of the length H2 of the direction orthogonal to the direction upright from the board | substrate 101 of the reinforcement strip 104 is shown. However, the present invention is not limited to this. In the above embodiment, since it is a preferable example that the length H1 of the reinforcing strip 104 is 15 times or more the length H2, the ratio between the length H1 and the length H2 may be set as appropriate.

  INDUSTRIAL APPLICABILITY The present invention can be used for a strip containing a reinforcing material for pipe making of rehabilitated pipe and a pipe making method using the same, and more specifically, an aging sewer pipe, a water pipe, an agricultural water pipe, and a gas pipe. It can utilize for the strip | belt-shaped body with the reinforcing material for rehabilitation pipe | tube pipes used when manufacturing the rehabilitation pipe | tube which rehabilitates existing pipe | tubes, etc., and the pipe making method using the same.

DESCRIPTION OF SYMBOLS 1 Pipe making machine 2 Guide frame 3 Guide roller 4 Drive mechanism 5 Extrusion welding machine 42 Pinch roller 100 Strip | belt-shaped member (band | burd body containing reinforcement material for retread pipe production)
101 Substrate 102 Rib 104 Reinforcement strip (reinforcement material)
104a End portion 105 Inclined surface 421 Outer roller 421a Corner portion 422 Inner roller S Rehabilitation pipe K Existing pipe M1, M2 Manhole

Claims (4)

It is a strip-shaped body with a reinforcing material for pipe making of rehabilitation pipe that is wound spirally to form a rehabilitation pipe, and a gap is not formed over the entire length of the rib plate-like substrate, a rib standing upright from the substrate In a strip with a reinforcing material for rehabilitating pipes, comprising a reinforcing material made of a metal plate embedded in
An inclined surface that is inclined in a direction protruding from the outer surface of the rib is formed at a boundary portion between the substrate and the rib,
An end portion of the reinforcing member on the substrate side extends to the inside of the substrate. In the strip | belt shaped body with the reinforcement material for pipe renovation pipes of Claim 1,
The cross-sectional shape of the reinforcing material is a rectangular shape when viewed from the direction in which the strip-shaped body with the reinforcing material for pipes made of rehabilitation pipes extends,
The length of the reinforcing material in the direction erecting from the substrate is 15 times or more of the length of the reinforcing material in the direction perpendicular to the direction erecting from the substrate. Banded body. Using a strip-shaped body with a reinforcing material for pipes made of rehabilitation pipe, comprising a strip-shaped substrate, a rib standing upright from the substrate, and a reinforcing material made of a metal plate embedded so that no gap is formed over the entire length of the rib It is a pipe making method, spirally winding the rehabilitated pipe-made reinforcing member-like strip supplied to a pipe making machine, and spirally adjacent one side of the rehabilitating-pipe-made reinforcing member containing the reinforcing member In the pipe making method of inserting the rehabilitated pipe into the existing pipe while making the rehabilitated pipe by sequentially joining the edge part and the other side edge part,
An inclined surface that is inclined in a direction protruding from the outer surface of the rib is formed at a boundary portion between the substrate and the rib of the band-shaped body for reinforcing pipe-making pipe used in the pipe making method,
With the plurality of rollers rotatably supported in the circumferential direction of the annular guide frame of the pipe making machine, the ribs of the band-shaped body with the reinforcing material for pipe making of rehabilitation pipe face the radially outer side of the guide frame. A rehabilitating pipe characterized in that, when being supplied to a pipe making machine, a roller that deforms the band-like body with the reinforcing material for rehabilitating pipe making at a predetermined radius of curvature and the inclined surface among the plurality of rollers are brought into contact with each other. A pipe making method using a band-like body with a reinforcing material for pipe making. In the pipe making method using the strip | belt body containing the reinforcing material for pipe renovation pipes of Claim 3,
With the plurality of rollers rotatably supported in the circumferential direction of the annular guide frame of the pipe making machine, the ribs of the band-shaped body with the reinforcing material for pipe making of rehabilitation pipe face the radially outer side of the guide frame. When being supplied to a pipe making machine, the inclined surface is not brought into contact with a roller other than a roller that deforms the band-like body with the reinforcing material for pipe rehabilitation pipe making at a predetermined curvature radius among the plurality of rollers. A pipe making method using a band with reinforcing material for pipe making.

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