JP2009019747A - Regeneration method for buried connection pipe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily line a buried connection pipe having a bent portion, mainly by work from the ground side while ensuring a sufficient flow channel area. <P>SOLUTION: According to the regeneration method for the buried connection pipe, a plurality of pipe segments 2 are rotatably joined to each other so as to form a pipe assembly 2A. The pipe assembly 2A is inserted into the buried connection pipe T from the side of a cesspit T1, and a vibration means 3 is inserted into the pipe assembly 2A from the side of the cesspit T1. The vibration means 3 is forced into the pipe assembly 2A while applying vibration to the pipe assembly 2A at a position corresponding to the bent portion Tx. After the pipe assembly 2A is advanced until the pipe segment 2' at the top end reaches a port Ta of the connection pipe for connection with a buried main pipe H, back-filling material is filled into a space between the inner peripheral surface of the buried connection pipe H and the outer peripheral surface of the pipe assembly 2A from the side of the cesspit T1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a method for rehabilitating a buried mounting pipe by lining the inner peripheral surface of the buried mounting pipe buried in the ground with a rehabilitation pipe.

  Various pipes for sewage are buried in the ground. This pipe line is generally composed of a buried main pipe communicating between manholes and a plurality of buried mounting pipes (branch pipes) connected to the buried main pipe. Underground pipes are usually installed so that the pits near the surface of the earth and the underground main pipes communicate with each other, but unlike the main pipes and manholes, the pipe diameters are small and simple. Yes. For this reason, breakage and cracks often occur on the inner surface of the buried mounting pipe. In addition, the connection location between the buried main pipe and the buried mounting pipe (hereinafter referred to as the mounting pipe port), which was firmly attached at the beginning of the construction, may be loosened due to the influence of ground fluctuation or the like. And when soil water, such as rain water and spring water, flows into the pipe line from the damaged part, crack part, and connection part, there is a possibility that the amount of water in the buried main pipe may exceed the allowable water quantity.

Corresponding to such a problem, as a method for lining an embedded mounting pipe, a plurality of pipe members each having a spherical universal joint formed at one end and the other end are connected to the other pipe member. The pipe members are connected to each other through a spherical universal joint so as to be slidable and rotatable to form a liner pipe. The liner pipe is inserted into the embedded mounting pipe, and cement or the like is inserted between the embedded mounting pipe and the liner pipe. It has been proposed to fill the backfill material (see, for example, Patent Document 1).
JP 2000-74261 A

  However, in the above-described lining method in which the liner pipe connecting a plurality of pipe members is inserted into the buried mounting pipe, a straight tubular pipe member in which spherical universal joints that can slide and rotate with each other are formed at both ends is required. For this reason, there is a problem that the lining object is limited to a buried mounting pipe having a bent portion with a gentle curvature radius in which a pipe member of that length can be accommodated. In addition, the angle formed by the axis of one pipe member and the axis of the other pipe member is such that the slit is not exposed so that the filler does not enter the inside through the slit, and the sewage flowing down. So that the tip of the male spherical universal joint does not protrude into the inside of the tube so that it does not become a resistance, etc., and this point is also limited by the radius of curvature of the bent portion of the embedded tube It becomes.

  In addition, since the pipe member is provided with spherical universal joints at both ends, the pipe diameter becomes larger at both ends and the tube portion between them becomes smaller. Therefore, the size of both ends of the maximum diameter is determined so as to secure a space for filling the backfill material between the buried mounting pipe, but the pipe body portion has a smaller diameter, and the flow area is It is determined by the cross-sectional area of the tube body part, and the outer diameter of the tube member cannot be fully utilized. Further, since the male spherical universal joint of the other pipe member is fitted to the female spherical universal joint of one pipe member, a step is formed on the inner peripheral surface of the spherical universal joint by the thickness of the male spherical universal joint. It may cause resistance such as sewage that is generated and flows down, or it may cause clogging due to contact with dredging.

  The present invention has been made in view of such a problem, and it is possible to easily line a buried mounting pipe having a bent portion mainly by work from the ground side while ensuring a sufficient flow path area. The present invention provides a method for rehabilitating a buried pipe.

  According to a first aspect of the present invention, there is provided a method for rehabilitating a buried mounting pipe, wherein the reed pipe is formed of a pipe assembly formed by joining a plurality of pipe segments so as to be rotatable with each other. A method of rehabilitating an embedded mounting pipe that linings the inner peripheral surface of the embedded mounting pipe, wherein a pipe assembly is inserted into the embedded mounting pipe from the heel side, while a vibration means is inserted into the pipe assembly from the heel side to After pushing the pipe assembly at the position corresponding to the position of the pipe assembly until the tip pipe segment reaches the mounting port with the embedded main pipe, the pipe assembly is inserted, and then the inner peripheral surface of the embedded mounting pipe and the outer periphery of the pipe assembly The back filling material is filled into the gap with the surface from the heel side.

  According to the present invention, a plurality of straight pipe segments are joined to each other in a rotatable manner to form a pipe assembly, and this pipe assembly is inserted as a rehabilitation pipe into the embedded mounting pipe from the heel side. If the pipe assembly interferes with the bent portion of the embedded mounting tube and can no longer be inserted, the vibration means is inserted into the pipe assembly from the heel side and pushed to a position corresponding to the bent portion. A vibration is applied to the pipe assembly corresponding to the above and a pushing force is applied. As a result, the adjacent pipe segments rotate around each other so that the interference resistance with the bent portion of the embedded mounting pipe is reduced, and pass through the bent portion while changing the angle formed by the axis. Next, when the pipe assembly passes through the bent portion and the pipe segment at the tip reaches the mounting tube port, the back mounting material is filled between the embedded mounting tube and the pipe assembly to finish the lining operation of the embedded mounting tube. .

  As a result, it is possible to easily line the embedded mounting pipe having the bent portion mainly by work from the ground side while securing a sufficient flow path area.

  According to a second aspect of the present invention, there is provided a method for rehabilitating an embedded mounting pipe comprising a pipe assembly formed by joining a plurality of pipe segments to each other and a flexible pipe connected to one end of the pipe assembly. This is a method for rehabilitating an embedded mounting pipe that linings the inner peripheral surface of the embedded mounting pipe that communicates the dredger with the buried main pipe using a pipe. The rehabilitating pipe is inserted into the embedded mounting pipe from the heel side with the pipe assembly at the head. On the other hand, the vibration means is inserted into the rehabilitation pipe from the heel side and is pushed in while applying vibration to the pipe assembly at the position corresponding to the bent part until the pipe segment at the tip reaches the attachment pipe port with the buried main pipe. Is inserted into the gap between the inner peripheral surface of the buried mounting pipe, the outer peripheral surface of the pipe assembly, and the outer peripheral surface of the flexible tube from the side of the ridge.

  According to the present invention, a plurality of straight pipe segments are joined to each other in a rotatable manner to form a pipe assembly, and a flexible tube is connected to the pipe assembly, and the pipe assembly and the flexible tube are renewed. Insert the pipe assembly into the buried mounting pipe from the heel side as the pipe. If the pipe assembly interferes with the bent portion of the embedded mounting tube and cannot be inserted any more, the vibration means is inserted into the pipe assembly from the heel side through the flexible tube and pushed to a position corresponding to the bent portion. Thereafter, vibration is applied to the pipe assembly corresponding to the bent portion and a pushing force is applied. As a result, the adjacent pipe segments rotate around each other so that the interference resistance with the bent portion of the embedded mounting pipe is reduced, and pass through the bent portion while changing the angle formed by the axis. Next, when the pipe assembly passes through the bent portion and the pipe segment at the tip reaches the mounting tube port, the back mounting material is filled between the embedded mounting tube, the pipe assembly, and the flexible tube to line the embedded mounting tube. Finish the work.

  As a result, it is possible to easily line the embedded mounting pipe having the bent portion mainly by work from the ground side while securing a sufficient flow path area. In particular, if a short pipe assembly composed of a small number of pipe segments passes through the bent portion, the flexible tube passes through the bent portion relatively easily, so that the lining operation can be performed efficiently.

  In the present invention, the pipe segment has a cylindrical wall composed of an outer peripheral surface and an inner peripheral surface, and each end surface in the axial direction of the cylindrical wall is inclined in directions opposite to each other with respect to a vertical plane orthogonal to the axial center. The outer surface is formed in a substantially trapezoidal cross section, and the engaging groove is formed on the outer peripheral surface in the vicinity of one end surface over the entire periphery, and the engagement surface is formed in the inner peripheral surface in the vicinity of the other end surface. A plurality of engaging ridges that can be engaged with the joint groove so as to be rotatable about the axis are formed intermittently at intervals in the circumferential direction, and the engagement groove of one adjacent pipe segment and the other It is preferable that the engaging ridges of the pipe segments are engaged with each other and rotatably joined to each other. Accordingly, a plurality of pipe segments can be easily joined to form a pipe assembly, and the shafts rotate around the axis of the cylindrical wall through the engaged engagement grooves and the engagement ridges. In addition to allowing the inner peripheral surfaces to communicate with each other by changing the angle formed by the center, the pipe segment can be easily manufactured by molding.

  In the present invention, the pipe segment has a cylindrical wall composed of an outer peripheral surface and an inner peripheral surface, and each end surface in the axial direction of the cylindrical wall is inclined in directions opposite to each other with respect to a vertical plane orthogonal to the axial center. The outer shape is formed in a substantially trapezoidal cross section, and an engagement groove is formed in one end portion inwardly over the entire circumference, and the other end portion is directed outward. Engagement ridges that can be engaged with the engagement groove so as to be rotatable about the axis thereof are formed over the entire circumference, so that the engagement ridges of one adjacent pipe segment and the engagement ridges of the other pipe segment are formed. Are preferably engaged with each other so as to be rotatable. Accordingly, a plurality of pipe segments can be easily joined to form a pipe assembly, and the shafts rotate around the axis of the cylindrical wall through the engaged engagement grooves and the engagement ridges. The inner peripheral surfaces can be communicated by changing the angle formed by the mind.

  In the present invention, prior to the filling of the backfill material into the gap between the buried mounting pipe and the pipe assembly, or the gap between the buried mounting pipe and the pipe assembly and the flexible pipe, the rotating means is inserted into the rehabilitation pipe from the heel side. It is preferable to insert and rotate the pipe segment at the tip by the rotating means to correct the posture of the pipe segment at the tip with respect to the attachment pipe port with the buried main pipe. Thereby, it can correct so that the pipe segment of a front end may not protrude in an embedding main pipe. At this time, it is necessary to support the rear end of the rehabilitation pipe from the ridge side so that the rehabilitation pipe does not fall into the buried main pipe.

  In the present invention, it is preferable that the rotating means includes a flexible shaft and the outside diameter is variable by introducing a fluid therein. As a result, the rotating means can be easily inserted into the pipe assembly with no fluid introduced inside, and the outer diameter is expanded by introducing the fluid into the pipe assembly so that it can be held by the pipe segment at the tip. can do. Next, the pipe segment can be rotated by rotating the flexible shaft. On the other hand, when the operation is completed, the diameter is reduced from the expanded state, so that the gap can be secured by separating from the inner peripheral surface of the pipe segment at the tip, and can be easily pulled out from the heel side.

  In the present invention, it is preferable that the rotation of the pipe segment at the tip by the rotating means is performed based on an image around the attachment tube port by the imaging device carried into the embedded main pipe. Thereby, the rotation of the pipe segment at the distal end by the rotating means can be confirmed by the imaging device, and the pipe segment at the distal end can be reliably corrected to an optimum posture that does not protrude into the buried main pipe. In this case, the imaging device may be carried into the buried main through the rehabilitation pipe from the heel side, or may be carried into the buried main from an adjacent manhole.

  In the present invention, the filling of the backfill material into the gap between the buried mounting pipe and the pipe assembly or the gap between the buried mounting pipe and the pipe assembly and the flexible pipe is buried in the vicinity of the pipe segment at the front end and the mounting pipe port. After the backfill material is filled into the gap between the mounting pipe and the backfill material is hardened, the gap between the pipe assembly excluding the tip pipe segment and the embedded mounting pipe, or the pipe assembly excluding the tip pipe segment It is preferable to carry out in two stages, that is, filling the gap between the flexible tube and the buried mounting tube with the backfilling material. As a result, if a backfill material is filled on the outer peripheral surface side of the pipe segment at the tip, the outer peripheral surface side of the pipe assembly excluding the pipe segment at the front end or the pipe segment at the tip is removed using the hardened backfill material as a stopper. Back-filling material can be filled on the outer peripheral surface side of the pipe assembly and flexible pipe, and after the back-filling material is cured over the entire length of the rehabilitated pipe, the work time is shortened compared with the case where the next lining operation is performed. can do.

  In the present invention, filling of the backfill material into the gap between the pipe segment at the tip end and the buried attachment pipe around the attachment tube port is performed by injection means inserted into the pipe segment at the tip end from the heel side. It is preferably carried out in a state in which the mounting tube port is sealed by a formwork device that is held in the pipe segment at the tip in a state of being fitted into a pre-formed injection hole in the pipe segment and is carried into the buried main pipe. . Thus, the backfilling material can be supplied from the injection nozzle of the injection means to the outer peripheral surface side of the pipe segment at the tip through the injection hole. At this time, the backfilling material supplied to the outer peripheral surface side of the pipe segment at the tip is reliably supported by the formwork device that seals the attachment pipe port without dropping off into the buried main pipe.

  In the present invention, it is preferable that the injection means includes a supply hose connected to a flexible shaft and an injection nozzle, and the outside diameter is variable by introducing a fluid therein. As a result, the injection means can be easily inserted to the pipe segment at the tip without introducing fluid inside, and the injection nozzle can be inserted into the injection hole of the pipe segment at the tip by rotating the flexible shaft. In this state, a fluid is introduced into the inside and the outside diameter is enlarged, so that the injection nozzle can be fitted into the injection hole and held in the pipe segment at the tip. On the other hand, when the work is completed, by reducing the diameter from the expanded state, the injection nozzle can be detached from the injection hole of the pipe segment at the tip, and a gap can be secured between the inner peripheral surface of the pipe segment at the tip. And can be easily pulled out from the heel side.

  In the present invention, the filling of the backfilling material by the injection means is preferably performed based on an image around the attachment tube port by the imaging device carried into the embedded main pipe. This allows the imaging device to check the position of the injection nozzle facing the injection hole of the pipe segment at the tip and the insertion of the injection nozzle into the injection hole. Material can be supplied. In this case, the imaging device may be carried into the buried main through the rehabilitation pipe from the heel side, or may be carried into the buried main from an adjacent manhole.

  In this invention, it is preferable that the said formwork apparatus is a packer which can be expanded by supplying a fluid inside. Thereby, it can carry in to an embedding main pipe easily. In this case, the formwork apparatus may be carried into the buried main pipe through the rehabilitation pipe from the heel side, or may be carried into the buried main pipe from the adjacent manhole.

  In the present invention, it is preferable that the backfilling material filled in the gap between the pipe segment at the tip and the embedded mounting pipe around the mounting pipe port is a fast-hardening cement. As a result, the filled backfill material hardens in a short time and develops strength, so the support of the backfill material by the formwork device is completed in a short time and moved to the next lining work position of the buried pipe The formwork device does not block the buried main pipe for a long time.

  In the present invention, one or a plurality of pipe segments protruding from the heel side of the pipe segment inserted into the embedded mounting pipe may be removed by cutting or releasing the engagement between the engagement groove and the engagement ridge. preferable. Thereby, the edge part process of the pipe assembly with respect to a cage | basket can be performed.

  In this invention, it is preferable that the flexible pipe | tube which protrudes from the heel side in the rehabilitation pipe | tube inserted in the said buried attachment pipe | tube is cut | disconnected. Thereby, the edge part process of the flexible tube with respect to a collar can be performed.

  According to a sixteenth aspect of the present invention, there is provided a method for rehabilitating an embedded mounting pipe having a cylindrical wall composed of an inner peripheral surface and an outer peripheral surface, and each end surface in the axial direction of the cylindrical wall being a vertical surface perpendicular to the axial center. On the other hand, the outer shape is formed in a substantially trapezoidal shape with inclined surfaces that are inclined in opposite directions, and an engagement groove is formed on the entire outer peripheral surface in the vicinity of one end surface, and in the vicinity of the other end surface A plurality of engagement ridges that can be engaged with the engagement groove so as to be rotatable about the axis about the engagement groove, and are formed by a plurality of pipe segments formed intermittently at intervals in the circumferential direction. Using a rehabilitating pipe composed of a pipe assembly in which the engaging groove of one adjacent pipe segment and the engaging ridge of the other pipe segment are engaged and joined to each other, the reed pipe and the buried main pipe are used. The inner peripheral surface of the buried mounting pipe that communicates with In this method, the pipe assembly is inserted into the buried mounting pipe from the heel side, while the vibration means is inserted into the pipe assembly from the heel side to vibrate the pipe assembly at the position corresponding to the bent portion. Insert the pipe assembly through the pipe assembly until the pipe segment at the tip reaches the mounting pipe port with the embedded main pipe, and then back into the gap between the inner peripheral surface of the embedded mounting pipe and the outer peripheral surface of the pipe assembly. It is characterized by filling the material.

  According to the present invention, a plurality of straight pipe segments are joined to each other so as to be rotatable, and are rotated around the axis of the cylindrical wall via the engaged engagement grooves and the engagement ridges. After changing the angle formed by the pipe assembly to form the pipe assembly communicating with the inner peripheral surfaces thereof, the pipe assembly is inserted as a rehabilitation pipe into the embedded mounting pipe from the heel side. If the pipe assembly interferes with the bent portion of the embedded mounting tube and can no longer be inserted, the vibration means is inserted into the pipe assembly from the heel side and pushed to a position corresponding to the bent portion. A vibration is applied to the pipe assembly corresponding to the above and a pushing force is applied. As a result, the adjacent pipe segments rotate around each other so that the interference resistance with the bent portion of the embedded mounting pipe is reduced, and pass through the bent portion while changing the angle formed by the axis. Next, when the pipe assembly passes through the bent portion and the pipe segment at the tip reaches the mounting tube port, the back mounting material is filled between the embedded mounting tube and the pipe assembly to finish the lining operation of the embedded mounting tube. .

  As a result, it is possible to easily line the embedded mounting pipe having the bent portion mainly by work from the ground side while securing a sufficient flow path area.

  The embedded attachment pipe rehabilitation method according to claim 17 of the present invention has a cylindrical wall composed of an inner peripheral surface and an outer peripheral surface, and each end surface in the axial direction of the cylindrical wall is a vertical surface orthogonal to the axial center. On the other hand, the outer shape is formed in a substantially trapezoidal shape with inclined surfaces that are inclined in opposite directions, and an engagement groove is formed on the entire outer peripheral surface in the vicinity of one end surface, and in the vicinity of the other end surface A plurality of engagement ridges that can be engaged with the engagement groove so as to be rotatable about the axis about the engagement groove, and are formed by a plurality of pipe segments formed intermittently at intervals in the circumferential direction. A pipe assembly in which an engagement groove of one adjacent pipe segment and an engagement bulge of the other pipe segment are engaged with each other, and a flexible tube connected to one end of the pipe assembly. With a rehabilitation pipe constructed A method of rehabilitating a buried mounting pipe that lines the inner surface of the buried mounting pipe that communicates with the main pipe, and inserting the rehabilitation pipe into the buried mounting pipe with the pipe assembly at the head from the heel side, while entering the rehabilitation pipe from the heel side. Insert the vibration means, push it while applying vibration to the pipe assembly at the position corresponding to the bent part, and insert the rehabilitation pipe until the pipe segment at the tip reaches the attachment pipe port with the buried main pipe. A backfill material is filled into the gap between the inner peripheral surface and the outer peripheral surface of the pipe assembly and the outer peripheral surface of the flexible tube from the side of the ridge.

  According to the present invention, a plurality of straight pipe segments are joined to each other so as to be rotatable, and are rotated around the axis of the cylindrical wall via the engaged engagement grooves and the engagement ridges. The pipe assembly that connects the inner peripheral surfaces thereof with different angles is formed, and a flexible tube is connected to the pipe assembly. The pipe assembly and the flexible tube are used as rehabilitation pipes, and the pipe assembly is connected from the heel side. Insert into the buried tube at the top. If the pipe assembly interferes with the bent portion of the embedded mounting tube and cannot be inserted any more, the vibration means is inserted into the pipe assembly from the heel side through the flexible tube and pushed to a position corresponding to the bent portion. Thereafter, vibration is applied to the pipe assembly corresponding to the bent portion and a pushing force is applied. As a result, the adjacent pipe segments rotate around each other so that the interference resistance with the bent portion of the embedded mounting pipe is reduced, and pass through the bent portion while changing the angle formed by the axis. Next, when the pipe assembly passes through the bent portion and the pipe segment at the tip reaches the mounting tube port, the back mounting material is filled between the embedded mounting tube, the pipe assembly, and the flexible tube to line the embedded mounting tube. Finish the work.

  As a result, it is possible to easily line the embedded mounting pipe having the bent portion mainly by work from the ground side while securing a sufficient flow path area. In particular, if a short pipe assembly composed of a small number of pipe segments passes through the bent portion, the flexible tube passes through the bent portion relatively easily, so that the lining operation can be performed efficiently.

  According to the present invention, it is possible to easily line a buried mounting pipe having a bent portion mainly by work from the ground side while securing a sufficient flow path area.

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

  Before describing each embodiment, the rehabilitation pipe | tube 1 used for the rehabilitation method of this invention is demonstrated.

  The rehabilitation pipe 1 is composed of a pipe assembly 2A formed by joining a plurality of cylindrical pipe segments 2, and the pipe segment 2 is formed of a resin such as polyvinyl chloride.

  As shown in FIG. 1, the pipe segment 2 has a cylindrical wall 23 composed of an outer peripheral surface 21 and an inner peripheral surface 22, and end surfaces 24 and 25 in the axial center L direction of the cylindrical wall 23 have the axial center L. And the entire outer shape is formed in a substantially trapezoidal cross section. The pipe segment 2 has an engagement groove 26 formed on the outer peripheral surface 21 in the vicinity of one end surface 24 over the entire circumference, and a plurality of engagement ridges 27 on the inner peripheral surface 22 in the vicinity of the other end surface 25. The engagement grooves 26 and the engagement ridges 27 can be engaged with each other and joined together, and in the joined state, around the axis L. It is set to be able to rotate. That is, in a pair of adjacent pipe segments 2 and 2, the other end surface 25 of the other pipe segment 2 is opposed to one end surface 24 of one pipe segment 2 and moved in the direction of the axis L so as to approach each other. As a result, the engagement ridges 27 of the other pipe segments 2 can be elastically deformed into and engaged with the engagement grooves 26 of the one pipe segment 2, and a pair of adjacent pipe segments 2, 2 can be joined together. Can rotate around the axis L via the engaging groove 26 and the engaging ridge 27 in the engaged state.

  In this case, the inner peripheral surface 22 of one pipe segment 2 and the inner peripheral surface 22 of the other pipe segment 2 communicate with each other in a plane corresponding to the rotation angle around their axis L, or their The shaft centers L communicate with each other in an intersecting state inclined by a certain angle.

More specifically, in FIG. 2 and FIG. 3, the inclination angle with respect to a vertical plane perpendicular to the axis L of the end faces 24, 25 in each pipe segment 2 is set to the same, and, 2 ₁ and the pipe segment of the left intermediate pipe segment 2 ₂ adjacent the inner peripheral surface 22 ₁ minimum width portion and a maximum width portion of the is joined to face 22 ₂ is communicated with the flush, the intermediate pipe segment 2 ₂ and adjacent pipe segment 2 ₃ the right to the minimum width portion and between the maximum width portions each other are joined so as to face by twice axis L of the inclination angle of the end face 24, 25 is inclined relative to the axis L by The inner peripheral surfaces 22 ₂ and 22 ₃ communicate with each other in an intersecting state.

  Hereinafter, an embodiment of the lining operation of the buried mounting pipe T that connects the ridge T1 and the buried main pipe H using the rehabilitated pipe 1 constituted by the pipe assembly 2A will be described.

  In this embodiment, of the plurality of pipe segments 2 of the pipe assembly 2A constituting the rehabilitation pipe 1, the tip pipe segment 2 ′ corresponds to the inclination angle of the buried mounting pipe T with respect to the buried main pipe H. In addition, the inclination angle is set so that the distal end surface is a horizontal plane parallel to the axis of the buried main pipe H, and as will be described later, an injection hole 23a for injecting a backfill material (see FIG. 11). Is previously formed through the cylindrical wall 23.

  The lining operation is executed after high-pressure water cleaning of the inner surface of the buried mounting tube T and the in-pipe inspection by the television camera are performed.

  First, the rehabilitation pipe 1, that is, the pipe assembly 2A, is inserted into the embedded attachment pipe T from the side of the flange T1 with the pipe segment 2 'at the front end. When the pipe segment 2 'at the tip reaches the bent portion Tx of the embedded mounting tube T, further insertion is prevented. In this state, as shown in FIG. 4, the vibration means 3, for example, a commercially available flexible vibrator 31 is inserted into the pipe assembly 2 </ b> A from the flange T <b> 1 side, and the flexible vibrator 31 corresponds to the bent portion Tx of the embedded mounting tube T. Push to the position and vibrate. As a result, the pipe segment 2 ′ at the tip vibrates and rotates around the axis L with respect to the adjacent pipe segment 2. In this state, when a pushing force is applied to the pipe assembly 2A, the pipe assembly 2 'rotates with respect to the adjacent pipe segment 2 so that the interference resistance with the buried mounting pipe T is reduced around the axis L so that the interference resistance with the buried mounting pipe T is reduced. Then, the inner peripheral surface crosses the bonded state corresponding to the bent portion Tx and passes through the bent portion Tx. Hereinafter, the preceding pipe segment 2 rotates around the axis L so that the interference resistance with the embedded mounting pipe T becomes smaller with respect to the adjacent subsequent pipe segment 2, and the subsequent pipe segment 2 is adjacent to the subsequent pipe segment 2. The inner circumferential surface intersects the joined state corresponding to the bent portion Tx with respect to the segment 2 and sequentially passes through the bent portion Tx.

  Similarly, even when it reaches the other bent portion Tx of the embedded mounting tube T and cannot be inserted any more, it can be dealt with by arranging and vibrating the flexible vibrator 31 at a position corresponding to the bent portion Tx. The pipe segment 2 to be rotated is vibrated and rotated around the axis L, and the angle formed between the inner peripheral surface of the pipe segment 2 and the inner peripheral surface of the succeeding pipe segment 2 is changed to pass through the bent portion Tx (see FIG. 5). .

  In this way, when the pipe assembly 2A is pushed in while being vibrated and the pipe segment 2 'at the tip reaches the attachment pipe port Ta, the TV camera carriage 4 is carried into the buried main pipe H from the adjacent manhole and attached. It is moved to a position facing the tube port Ta, and the state of the pipe segment 2 'at the tip with respect to the mounting tube port Ta is confirmed by an image from the television camera. That is, it is confirmed from the image photographed by the television camera whether or not the pipe segment 2 'at the tip protrudes inward from the buried main pipe H. If it protrudes, the rotating means enters the pipe assembly 2A from the side of the flange T1. 5 is inserted and rotated by the rotating means 5 so that the pipe segment 2 ′ at the tip does not protrude into the buried main pipe H (see FIG. 6).

  Here, as shown in FIG. 7, the rotating means 5 includes two discs 51, 51 that are connected to each end of the connecting pipe 52 so as to face each other, and the outer peripheral surfaces of these discs 51, 51. A flexible film 53 made of rubber or the like is provided over the entire circumference, and a sealed space 5x is formed on the inner surface of the flexible film 53. A flexible shaft 54 is connected to one of the disks 51, and a through hole 51a having one end opened to the sealed space 5x is formed. One end of the disk 51 has air such as a blower (not shown). The other end of the air pipe 55 connected to the source is connected.

  For this reason, the flexible membrane 53 can be rotated via the upper disk 51 by rotating the flexible shaft 54. Further, when high pressure air is supplied from the air pipe 55 to the sealed space 5x by driving the air source, the flexible film 53 expands toward the outer peripheral side as shown by the phantom line in FIG. Can be calibrated.

  Therefore, after pulling out the flexible vibrator 31 from the pipe assembly 2A, the rotating means 5 in a reduced state is inserted into the pipe assembly 2A from the side of the flange T1 and pushed into the mounting port Ta (see FIG. 8). Next, when high-pressure air is supplied from an air source (not shown) through the air pipe 55 to the sealed space 5x, the flexible film 53 expands to increase the outer diameter, presses the inner peripheral surface of the pipe segment 2 ′ at the tip, and rotates. The means 5 is held by the pipe segment 2 ′ at the tip (see the chain line state in FIG. 8). Thereafter, if the flexible shaft 54 is rotated, the tip pipe segment 2 ′ held by the rotating means 5 rotates. The rotation of the pipe segment 2 ′ at the tip by the rotating means 5 is taken by a television camera. If the pipe segment 2 ′ at the tip is rotated to a position where it does not protrude into the buried main pipe H, it is flexible. The rotation of the rotating means 5 by the shaft 54 is stopped. Thereafter, the high-pressure air supplied to the sealed space 5x of the rotating means 5 is discharged to the atmosphere through the air pipe 55, the outer diameter of the rotating means 5 is reduced and separated from the pipe segment 2 ′ at the tip, and then the flexible shaft 54 is removed. To retrieve the rotating means 5 from the side of the heel T1.

  As for the pulling-in operation of the TV camera carriage 4, the carriage pulling wires 41 are respectively connected to the front and rear of the carriage 4, and these carriage pulling wires 41 are connected to the manhole on the upstream side and the downstream of the buried mounting pipe T to be lined. It is carried out by pulling it separately to the manhole on the side and pulling each carriage pulling wire 41.

  When the rotating means 5 is recovered in this way, the injection means 6 is inserted into the pipe assembly 2A from the side of the flange T1 and pushed to the position corresponding to the pipe segment 2 ′ at the tip, and the formwork device 7 is inserted into the buried main pipe H. Is moved from the adjacent manhole and moved to the position facing the mounting port Ta (see FIG. 9). Then, in a state where the attachment tube port Ta is sealed by the mold apparatus 7, a backfilling material is filled into the outer peripheral surface side of the pipe segment 2 ′ at the tip via the injection means 6.

  Here, as shown in FIG. 10, the injection means 6 has two discs 61, 61 each having openings 61 b, 61 b formed in the peripheral portion and is opposed to each other, and connects these discs 61, 61. As described above, the erection pipe 62 is connected over the openings 61b and 61b, and the flexible film 63 formed of rubber or the like is provided on the outer circumferential surface of the discs 61 and 61, and the erection pipe is provided. An arcuate support plate 66 is provided on the outer peripheral surface of the upper and lower disks 61, 61 in the vicinity of the peripheral part to which 62 is connected. A sealed space 6 x is formed on the inner surface of the flexible film 63. A flexible shaft 64 is connected to the upper disc 61, and a through hole 61a having one end opened to the sealed space 6x is formed. One end of the through hole 61a has air such as a blower (not shown). The other end of the air pipe 65 connected to the source is connected. In addition, an injection nozzle 67 having a smaller diameter than the injection hole 23a (see FIG. 11) formed in the pipe segment 2 ′ at the tip is provided in the downward protruding portion of the support plate 66 so as to protrude from the inner and outer peripheral surfaces. It has been. Further, a supply hose 68 for backfilling material is inserted into the erected pipe 62, and the distal end thereof is connected to the base end of an injection nozzle 67 provided on the support plate 66.

  For this reason, the flexible membrane 63 can be rotated via the upper disc 61 by rotating the flexible shaft 64. Further, when high-pressure air is supplied from the air pipe 65 to the sealed space 6x by driving the air source, the flexible film 63 expands toward the outer peripheral side as shown by the phantom line in FIG. Can be calibrated. Furthermore, the backfilling material such as cement mortar can be pumped to the supply hose 68 so that the backfilling material can be discharged from the injection nozzle 67.

  On the other hand, the formwork device 7 is a packer made of a bag made of rubber and sealed inside, and is configured by connecting a pressure fluid introduction pipe 72 such as a pressure fluid, for example, high-pressure air. The mold apparatus 7 has a cylindrical shape smaller in diameter than the inner diameter of the buried main pipe H in a state where no pressure fluid is introduced therein, and the buried book is introduced by introducing the pressure fluid therein. The diameter of the pipe H is increased to a diameter of about the inner diameter or larger.

  The pull-in operation of the formwork device 7 is performed by connecting packer pulling wires 71 to the respective side surfaces of the formwork device 7, and connecting these packer pulling wires 71 upstream of the lining target embedded mounting tube T. This is performed by pulling the manhole and the downstream manhole separately and pulling each packer pulling wire 71.

  The introduction of the pressure fluid to the packer which is the mold apparatus 7 is performed by, for example, a fluid pressure source, for example, a blower (not shown), which is installed on the ground and to which the pressure fluid introduction pipe 72 is connected. .

  Therefore, after recovering the rotating means 5 from the pipe assembly 2A, the injecting means 6 in a reduced state is inserted into the pipe assembly 2A from the side of the flange T1 and pushed into the attachment tube port Ta. Next, the flexible shaft 64 is rotated to rotate the injection means 6 so that the injection nozzle 67 provided on the support plate 66 faces the injection hole 23a formed in the pipe segment 2 'at the tip (see FIG. 11). Such rotation of the injection means 6 is photographed by a television camera. When the injection nozzle 67 reaches a position where the injection nozzle 67 faces the injection hole 23a of the pipe segment 2 ′ at the tip, high-pressure air is supplied from an air source (not shown). The air is supplied to the sealed space 6x through the air pipe 65. As a result, the flexible membrane 63 expands to expand the outer diameter and presses the inner peripheral surface of the pipe segment 2 'at the tip, so that the injection means 6 is held by the pipe segment 2' at the tip. In addition, the outer peripheral surface of the support plate 66 presses the inner peripheral surface of the leading pipe segment 2 ', and the injection nozzle 67 is fitted into the injection hole 23a of the leading pipe segment 2'.

  If the injection means 6 is held in the pipe segment 2 'at the distal end while the injection nozzle 67 is fitted in the injection hole 23a of the pipe segment 2' at the distal end, the TV camera carriage 4 is moved from the position facing the attachment tube port Ta. After moving, the mold apparatus 7 is moved to a position facing the attachment tube port Ta, and then the pressure fluid is introduced into the packer which is the mold apparatus 7 from the pressure fluid introduction pipe 72, and the mold apparatus 7 is expanded. . Thereby, the outer peripheral surface of the packer which is the formwork apparatus 7 presses and adheres to the periphery of the attachment tube port Ta. That is, the formwork device 7 seals the mounting tube port Ta of the embedded mounting tube T from the embedded main tube H side.

  Next, if the backfilling material, specifically the fast-hardening cement C1, is pressure-fed through the supply hose 68 from the side of the flange T1, the fast-hardening is performed from the injection nozzle 67 to the outer peripheral surface side through the injection hole 23a of the pipe segment 2 ′ at the tip. While the cement C1 is discharged, the discharge pressure wraps around the outer peripheral surface of the pipe segment 2 ′ at the tip. At this time, since the formwork device 7 seals the attachment pipe port Ta, the fast-hardening cement C1, which is a backfilling material filled on the outer peripheral surface side of the pipe segment 2 ′ at the tip, is embedded in the buried main pipe H. It is supported without falling off (see FIG. 12).

  When a certain amount of fast-curing cement C1 is supplied, the high-pressure air supplied to the sealed space 6x of the injection means 6 is discharged to the atmosphere through the air pipe 65, and the outer diameter of the injection means 6 is reduced to reduce the pipe segment 2 at the tip. The injection nozzle 67 is detached from the injection hole 23a, and the flexible shaft 64 is pulled in this state to recover the injection means 6 from the side of the heel T1. However, the mold apparatus 7 continues to seal the attachment tube port Ta until the fast-curing cement C1 is hardened.

  On the other hand, the fast-curing cement C1 filled on the outer peripheral surface side of the pipe segment 2 ′ at the front end is hardened in a short time and develops strength. Therefore, when the set time elapses, that is, the fast-hardening cement C1 is hardened. If so, the pressure fluid is removed from the formwork device 7 and reduced, and moved to the position near the mounting tube port Ta of the next embedded mounting tube T with the TV camera carriage 4 to prepare for the next lining operation. be able to. Thereby, it is not necessary to arrange the formwork device 7 in the same place for a long time and close the embedded main pipe H, and the working efficiency can be greatly improved.

  Further, when the fast-curing cement C1 is hardened, a hose (not shown) is inserted into the gap between the outer peripheral surface of the pipe assembly 2A and the inner peripheral surface of the embedded mounting tube T from the side of the flange T1, and a backfill material such as cement mortar C2 is provided. (See FIG. 13). As a result, the outer peripheral surface of the pipe assembly 2A composed of a plurality of pipe segments 2 excluding the pipe segment 2 'at the front end is embedded and embedded using the fast-curing cement C1 filled and hardened around the pipe segment 2' at the front end as a stopper. The gap with the inner peripheral surface of the pipe T can be filled in order with the backfill material C2, and the water stop performance of the pipe segment 2A can be ensured.

  If the backfill material C2 fills the gap between the outer peripheral surface of the pipe assembly 2A composed of a plurality of pipe segments 2 excluding the pipe segment 2 'at the tip and the inner peripheral surface of the embedded mounting tube T in order, and reaches the flange T1, The filling of the backfill material C2 is finished. Thereby, since the lining operation is completed, after the curing treatment of the backfill material C2, the lining operation of the buried mounting pipe T to be next constructed may be started.

  After curing the backfill material, the excess pipe assembly 2A existing in the heel T1 is cut or removed by releasing the engagement between the engagement groove 26 and the engagement ridge 27, and finishing the end face. Processing.

  As described above, in the present invention, since the lining operation of the buried mounting pipe T can be performed mainly by the heel T1, that is, the operation from the ground, the lining operation can be easily performed. Further, the pipe assembly 2A composed of a plurality of cylindrical pipe segments 2 used for the lining operation has almost no cross-sectional change in the direction of the axis L of the outer peripheral surface 21 and the inner peripheral surface 22, and the bent portion Tx. Since the inner peripheral surface 22 can be rotated so as to intersect with each other, even if the embedded mounting tube T has the bent portion Tx, the reduction of the flow area is minimized and the lining is performed. Is possible.

  In the above-described embodiment, the pipe segment 2 in which the engagement groove 26 is formed on the outer peripheral surface 21 and the engagement ridge 27 is formed on the inner peripheral surface 22 is exemplified. For example, the pipe segment 2 shown in FIGS. 14 and 15 may be used.

  That is, the pipe segment 2 also has a cylindrical wall 23 composed of an outer peripheral surface 21 and an inner peripheral surface 22, and vertical surfaces in which the end surfaces 24 and 25 in the axial center L direction of the cylindrical wall 23 are orthogonal to the axial center L. In contrast, the entire outer shape is formed in a substantially trapezoidal cross section. The pipe segment 2 is formed with an engagement groove 28 formed of a narrow neck portion and a wide base portion from one end surface 24 toward the inside of the cylindrical wall 23, and the other end surface. An engagement ridge 29 composed of a narrow neck portion and a substantially spherical head portion is formed over the entire circumference from 25 toward the outside. The engaging groove 28 and the engaging ridge 29 are set so as to be able to engage and join each other and to rotate around the axis L in the joined state. That is, in a pair of adjacent pipe segments 2 and 2, the other end surface 25 of the other pipe segment 2 is opposed to one end surface 24 of one pipe segment 2 and moved in the direction of the axis L so as to approach each other. Thus, the engaging ridges 29 of the other pipe segments 2 can be elastically deformed and fitted into the engaging grooves 28 of the one pipe segment 2 and joined together, and a pair of adjacent pipe segments 2, 2 Can rotate around the axis L via the engaging groove 28 and the engaging ridge 29 in the engaged state.

  Then, the inner peripheral surface 22 of one pipe segment 2 and the inner peripheral surface 22 of the other pipe segment 2 communicate with each other in a flush manner corresponding to the rotation angle around the axis L as shown in FIG. Alternatively, the shaft centers L communicate with each other in an intersecting state inclined at a certain angle.

  In the above-described embodiment, the case where the rehabilitation pipe 1 is constituted by the pipe assembly 2A composed of a plurality of pipe segments 2 has been described, but at the rear end of the pipe assembly 2A composed of the plurality of pipe segments 2, for example, Alternatively, a flexible tube (not shown) such as a corrugated tube or a bellows tube may be connected, and the rehabilitated tube 1 may be configured from the pipe assembly 2A and the flexible tube.

  When the rehabilitation pipe 1 is constituted by such a pipe assembly 2A composed of a plurality of pipe segments 2 and a flexible pipe connected to the rear end of the pipe assembly 2A, the flexible pipe has a water-stopping performance. Therefore, it is not necessary to fill the outer peripheral surface with a backfilling material for ensuring water-stopping performance, but it is desirable to fill the backfilling material in order to prevent displacement of the flexible tube. Therefore, when the rehabilitation pipe 1 is constituted by a short pipe assembly 2A composed of a small number of pipe segments 2 and a flexible pipe, the flexible pipe can easily get over the bent portion Tx of the embedded mounting pipe T. The lining work can be carried out efficiently.

  In the above-described embodiment, the rotation of the pipe segment 2 ′ at the tip by the rotating means 5 and the filling of the back-filling material (fast-hardening cement) C1 to the outer peripheral surface side of the pipe segment 2 ′ at the tip by the injection means 6 are performed. However, it is desirable to use the injection means 6 as the rotation means for the rotation of the pipe segment 2 'at the tip. Thereby, the drawing step of the rotating means 4 and the inserting step of the injecting means 6 are not required, and immediately after the correction of the posture by the rotation of the pipe segment 2 ′ at the end is completed, the outer peripheral surface side of the pipe segment 2 ′ at the tip is immediately It is possible to fill the backfill material (fast-hardening cement) C1 with the lining work in a shorter time.

It is a perspective view which shows an example of the pipe segment of the pipe assembly which comprises the rehabilitation pipe | tube in one Embodiment of the rehabilitation method of this invention. FIG. 2 is a side view of a pipe assembly formed from the pipe segment of FIG. 1. It is a longitudinal cross-sectional view of the pipe assembly of FIG. It is sectional drawing explaining the process of inserting a rehabilitation pipe | tube in the buried attachment pipe | tube which connects a ridge and a buried main pipe. It is sectional drawing explaining the process of inserting a renovation pipe | tube in a buried attachment pipe following FIG. It is sectional drawing explaining the process of correcting the attitude | position of the pipe segment of the front-end | tip in the rehabilitation pipe | tube inserted in the buried attachment pipe by a rotation means. It is a perspective view which shows an example of the rotation means of FIG. FIG. 8 is a cross-sectional view of the periphery of the attachment pipe port for explaining a process of correcting the posture of the pipe segment at the tip by the rotating means of FIG. 7. It is sectional drawing explaining the process of filling a backfilling material with the injection | pouring means in the clearance gap between the pipe segment of the front-end | tip in the rehabilitation pipe inserted in the buried attachment pipe, and the buried attachment pipe. It is a perspective view which shows an example of the injection | pouring means of FIG. It is sectional drawing of the attachment pipe port periphery explaining the process of filling a backfilling material with the injection | pouring means of FIG. It is sectional drawing explaining the state by which the backfilling material was filled by the injection | pouring means in the clearance gap between the pipe segment of a front-end | tip and an embedded attachment pipe. It is sectional drawing explaining the state by which the backfilling material was filled into the clearance gap between the pipe assembly which comprises a rehabilitation pipe, and an embedded attachment pipe following FIG. It is a longitudinal cross-sectional view which shows the modification of a pipe segment. It is a longitudinal cross-sectional view explaining the pipe assembly formed by the pipe segment of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rehabilitation pipe 2 Pipe segment 2 'End pipe segment 21 Outer peripheral surface 22 Inner peripheral surface 23 Cylindrical wall 24, 25 End surface 26, 28 Engagement groove 27, 29 Engagement ridge 2A Pipe assembly 3 Vibration means 4 Television camera carriage 5 Rotation Means 53 Flexible membrane 54 Flexible shaft 6 Injection means 63 Flexible membrane 64 Flexible shaft 67 Injection nozzle 68 Supply hose 7 Formwork device C1 Backfill material (fast-hardening cement)
H Buried main pipe T Buried mounting pipe T1 桝 Ta Mounting pipe port

Claims (17)

  Rehabilitation of the buried mounting pipe that lines the inner peripheral surface of the buried mounting pipe that communicates the dredger and the buried main pipe, using a rehabilitated pipe that is formed of a pipe assembly in which a plurality of pipe segments are joined together in a rotatable manner. In this method, the pipe assembly is inserted into the embedded mounting pipe from the heel side, while the vibration means is inserted into the pipe assembly from the heel side, and the tip is pushed by applying vibration to the pipe assembly at a position corresponding to the bent portion. After the pipe assembly is inserted until the pipe segment reaches the attachment pipe port with the buried main pipe, the backfill material is filled from the heel side into the gap between the inner circumferential surface of the buried mounting pipe and the outer circumferential surface of the pipe assembly. A characteristic method for rehabilitating buried mounting pipes.   An embedded installation for connecting a ridge and an embedded main pipe using a rehabilitation pipe comprising a pipe assembly formed by joining a plurality of pipe segments rotatably together and a flexible pipe connected to one end of the pipe assembly. A method of rehabilitating a buried mounting pipe that lines the inner peripheral surface of the pipe. The rehabilitation pipe is inserted into the buried mounting pipe from the heel side with the pipe assembly at the head, while the vibration means is inserted into the rehabilitation pipe from the heel side and bent. After inserting the rehabilitation pipe until the pipe segment at the tip reaches the attachment pipe port with the buried main pipe, the pipe assembly at the position corresponding to the part is pushed while applying vibration, and then the inner peripheral surface of the buried installation pipe and the pipe assembly A method for rehabilitating a buried mounting pipe, wherein a backfilling material is filled into the gap between the outer peripheral face and the outer peripheral face of the flexible pipe from the heel side.   The pipe segment has a cylindrical wall composed of an outer peripheral surface and an inner peripheral surface, and each end surface in the axial direction of the cylindrical wall has inclined surfaces inclined in directions opposite to each other with respect to a vertical plane orthogonal to the axial center. And the outer shape is formed in a substantially trapezoidal cross section, and the engaging groove is formed over the entire circumference on the outer peripheral surface near one end surface, and the inner peripheral surface near the other end surface is opposed to the engaging groove. A plurality of engaging ridges that can be rotatably engaged about the axis are formed intermittently at intervals in the circumferential direction, and the engaging groove of one adjacent pipe segment and the other pipe segment are The method for rehabilitating an embedded mounting pipe according to claim 1 or 2, wherein the engaging ridges are engaged with each other so as to be rotatable together.   The pipe segment has a cylindrical wall composed of an outer peripheral surface and an inner peripheral surface, and each end surface in the axial direction of the cylindrical wall has inclined surfaces inclined in directions opposite to each other with respect to a vertical plane orthogonal to the axial center. And the outer shape is formed in a substantially trapezoidal cross section, and the engagement groove is formed in one end portion inwardly over the entire circumference and the other end portion is engaged outwardly. Engagement ridges that can be rotatably engaged with the groove around the axis are formed over the entire circumference, and the engagement groove of one adjacent pipe segment is engaged with the engagement ridge of another pipe segment. The embedded attachment pipe rehabilitation method according to claim 1, wherein the reattachment pipes are joined to each other so as to be rotatable.   Prior to the filling of the backfill material into the gap between the buried mounting pipe and the pipe assembly or the gap between the buried mounting pipe, the pipe assembly and the flexible pipe, a rotating means is inserted into the rehabilitation pipe from the heel side and rotated. The method of rehabilitating an embedded pipe according to claim 1 or 2, wherein the pipe segment at the tip is rotated by means to correct the posture of the pipe segment at the tip relative to the mounting pipe port with the buried main pipe.   6. The method for rehabilitating a buried mounting pipe according to claim 5, wherein the rotating means includes a flexible shaft and the outer diameter is variable by introducing a fluid therein.   6. The method of rehabilitating an embedded mounting pipe according to claim 5, wherein the rotation of the pipe segment at the tip by the rotating means is performed based on an image around the mounting pipe port by an imaging device carried into the embedded main pipe. .   Filling the gap between the buried mounting pipe and the pipe assembly or the gap between the buried mounting pipe, the pipe assembly, and the flexible pipe with the buried pipe in the vicinity of the pipe segment at the tip and the mounting pipe port. After filling the gap with the backfilling material and hardening the backfilling material, the gap between the pipe assembly excluding the tip pipe segment and the embedded mounting pipe, or the pipe assembly and the flexible pipe excluding the tip pipe segment The method for rehabilitating a buried mounting pipe according to claim 1 or 2, wherein the method is carried out in two stages of filling the gap with the mounting pipe with a backfill material.   Filling the gap between the pipe segment at the front end and the embedded pipe around the mounting pipe port with the backfilling material, the injection means inserted into the pipe segment at the front end from the heel side makes the injection nozzle into the pipe segment at the front end. It is carried out in a state where the mounting pipe port is sealed by a formwork device which is held in a pipe segment at the tip in a state where it is fitted into a pre-formed injection hole and is carried into an embedded main pipe. 8. Rehabilitation method for buried mounting pipes according to 8.   10. The buried attachment pipe rehabilitation according to claim 9, wherein the injection means includes a supply hose connected to a flexible shaft and an injection nozzle, and the outside diameter is variable by introducing a fluid therein. Method.   10. The buried attachment pipe rehabilitation method according to claim 9, wherein the filling of the backfilling material by the injection means is performed based on an image around the attachment pipe opening by the imaging device carried into the buried main pipe.   10. The method for rehabilitating a buried mounting pipe according to claim 9, wherein the formwork device is a packer that can be expanded by supplying a fluid therein.   10. The buried attachment pipe rehabilitation method according to claim 8 or 9, wherein the backfilling material filled in the gap between the pipe segment at the tip and the buried attachment pipe in the vicinity of the attachment pipe opening is a fast-hardening cement. .   One or a plurality of pipe segments protruding from the heel side of the pipe segment inserted into the buried mounting pipe are removed by cutting or releasing the engagement between the engagement groove and the engagement ridge. Item 5. A method for rehabilitating a buried mounting pipe according to item 1.   The method for rehabilitating a buried mounting pipe according to claim 2, wherein a flexible pipe protruding from the heel side of the rehabilitated pipe inserted into the buried mounting pipe is cut.   The cylindrical wall has an inner peripheral surface and an outer peripheral surface, and each end surface in the axial direction of the cylindrical wall has inclined surfaces that are inclined in directions opposite to each other with respect to a vertical plane orthogonal to the axial center. It is formed in a substantially trapezoidal cross section, and an engagement groove is formed over the entire circumference on the outer peripheral surface near one end surface, and the inner peripheral surface near the other end surface is around the axis with respect to the engagement groove A plurality of engaging ridges that can be rotatably engaged are formed by a plurality of pipe segments formed intermittently at intervals in the circumferential direction, and the engaging groove of one adjacent pipe segment and the other pipe segment The embedded mounting for lining the inner peripheral surface of the embedded mounting pipe that communicates the ridge and the embedded main pipe with a rehabilitated pipe that is configured to be engaged with the engaging ridges of the pipe and joined together so as to be rotatable. Rehabilitation method for pipes, buried from the side While inserting the pipe assembly into the pipe, the vibration means is inserted into the pipe assembly from the heel side, and the pipe assembly at the tip is attached to the buried main pipe by pushing in while applying vibration to the pipe assembly at the position corresponding to the bent part. A method for rehabilitating an embedded mounting pipe, wherein after the pipe assembly is inserted until it reaches the pipe opening, a backfill material is filled into the gap between the inner peripheral surface of the embedded mounting pipe and the outer peripheral surface of the pipe assembly.   The cylindrical wall has an inner peripheral surface and an outer peripheral surface, and each end surface in the axial direction of the cylindrical wall has inclined surfaces that are inclined in directions opposite to each other with respect to a vertical plane orthogonal to the axial center. It is formed in a substantially trapezoidal cross section, and an engagement groove is formed over the entire circumference on the outer peripheral surface near one end surface, and the inner peripheral surface near the other end surface is around the axis with respect to the engagement groove A plurality of engaging ridges that can be rotatably engaged are formed of a plurality of pipe segments that are intermittently formed at intervals in the circumferential direction, and the engaging groove of one adjacent pipe segment and the other pipe segment The reed pipe and the buried main pipe are communicated with each other by using a rehabilitation pipe composed of a pipe assembly which is engaged with the engagement ridges of the pipe and rotatably joined to each other, and a flexible pipe connected to one end of the pipe assembly. Lining the inner surface of the buried mounting pipe A method for rehabilitating a buried mounting pipe, in which the pipe assembly is inserted into the buried mounting pipe from the side of the ridge, while the vibration means is inserted into the retreaded pipe from the side of the pipe, and the pipe corresponding to the bent portion is inserted. Insert the rehabilitation pipe until the pipe segment at the end reaches the attachment pipe opening with the buried main pipe, and push it in while applying vibration to the assembly, then the inner circumference of the buried installation pipe, the outer circumference of the pipe assembly, and the flexible pipe A method for rehabilitating a buried mounting pipe, wherein a backfilling material is filled into the gap with the outer peripheral surface from the heel side.

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