JP5268773B2 - Rehabilitation pipe manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly form a renovated pipe by supplying a strip member and power to a pipe forming machine through one open manhole even in the case of failing to open both manholes in a construction section. <P>SOLUTION: The pipe forming machine 1 having a joining mechanism for joining the joint parts of adjacent strip members 100 to each other is installed in an existing pipe K, while a wound body D for transportation with the strip member 100 wound in hollow cylinder shape, and a power unit G are installed on the ground on one manhole M1 side. Hydraulic piping P from the power unit G is allowed to pass through a hollow part of the wound body D for transportation and through the inside of the spiral strip member 100 pulled out of the wound body D for transportation and supplied to the joining mechanism of the pipe forming machine 1, and connected to a hydraulic motor of the joining mechanism through a rotary joint. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a method for producing a rehabilitation pipe for rehabilitating existing pipes such as an aged sewer pipe, a water pipe, an agricultural water pipe, and a gas pipe.

  Conventionally, in order to rehabilitate an aged existing pipe, a spiral belt-like member with joints formed on both side edges is supplied into the existing pipe, and the joints of adjacent belt-like members are joined together to rehabilitate. It is practiced to manufacture a tube, and supply a new strip member to the rehabilitation tube to form a rehabilitation tube. For example, as described in Patent Documents 1 and 2, a pipe making machine is installed in an existing pipe, and a transport winding body in which a belt-like member is wound in a hollow cylindrical shape is installed on the ground. The strip-shaped member drawn out in a spiral shape is supplied to a pipe-making machine in the existing pipe, and the pipe-making machine is rotated around the axis of the existing pipe to join the joint portions of the adjacent band-shaped members together to produce a regenerated pipe. A strip-shaped member is newly supplied to a rehabilitated pipe that has been piped and manufactured without rotation, and the rehabilitated pipe is additionally formed in the axial direction of the existing pipe.

Japanese Patent No. 3072015 Japanese Patent No. 3035466

  By the way, in the above-described method for producing rehabilitating pipes using a pipe making machine, while the transporting roll of the belt-like member is installed on the ground of the starting manhole, the generator is installed on the ground of the reaching manhole and the existing pipe is electrically A hydraulic unit consisting of a motor and a hydraulic pump driven by an electric motor is installed, and the generator and the electric motor of the hydraulic unit are connected via a power cable, while the hydraulic pump of the hydraulic unit and the hydraulic pressure of the joining mechanism in the pipe making machine The motor is connected via hydraulic piping. As a result, the spiral belt-like member and the hydraulic piping that supplies the hydraulic oil to the hydraulic motor can be supplied through different manholes, so that the spiral belt-like member and the hydraulic piping are not entangled and can be smoothly piped. It can be performed.

  Here, since the pipe making machine rotates around the axis of the existing pipe, the hydraulic pipe from the hydraulic unit is connected to the hydraulic motor via a rotary joint.

  However, depending on the site, both the starting manhole and the reaching manhole may not be opened due to the traffic situation in the construction section, for example, because the manhole is at an intersection. In this case, it is necessary to open another manhole farther than the actual construction section, and draw the belt-like member through the manhole to perform pipe making work, and more workers than normal pipe making work. There is a problem that the cost is increased.

  Also, as an alternative, after laying hydraulic piping from the starting manhole to the reaching manhole in advance and turning back to the starting manhole, pipework is performed so that the hydraulic piping is arranged on the outer periphery side of the rehabilitation pipe, It has also been proposed to pull out or bury the hydraulic piping after work. However, with this method, problems such as the occurrence of troubles due to the hydraulic piping getting caught or being buried, and the hydraulic piping being buried, are concerned about a decrease in strength compared to the complete mortar layer, and it is difficult to obtain the customer's understanding. is there.

  A generator and a hydraulic unit are installed on the ground on the starting manhole side, along with a transport roll for the belt-shaped member, and hydraulic piping is drawn into the existing pipe and connected to the hydraulic motor of the pipe making machine via a rotary joint. When performing pipe work, as the pipe making machine rotates around the axis of the existing pipe, hydraulic piping wraps around the outer periphery of the strip-like member that is spirally supplied to the pipe making machine. It becomes impossible.

  The present invention has been made in view of such problems, and even when it is not possible to open both manholes in the construction section, the belt-like member and the power are supplied to the pipe making machine through one opened manhole. The rehabilitated pipe can be smoothly produced by supplying the regenerated pipe.

  In the present invention, a pipe making machine having a joining mechanism that joins joint portions of adjacent strip members is installed in an existing pipe, and a spiral strip member having joints formed on both side edges is drawn into the existing pipe. To the joint mechanism of the pipe making machine and rotate the pipe making machine around the axis of the existing pipe to join adjacent joints together to make a renovated pipe. A method for producing a rehabilitation pipe in which a new band member is supplied to the rehabilitation pipe and the rehabilitation pipe is additionally formed in the axial direction of the existing pipe. Installed on one manhole or ground on one manhole side, installed the power unit on the ground on one manhole side, and pulled out the power supply line of the power unit from the hollow part of the transport winding body and the transport winding body Used for the joining mechanism of It is characterized in that connected via a rotary joint to the motor of the joint mechanism is passed through the inside of the spiral strip being.

  According to the present invention, a pipe making machine having a joining mechanism is installed in an existing pipe, while a transporting wound body in which a belt-like member having joints formed on both side edges is wound into a hollow cylindrical shape is attached to one manhole or While installing on the ground of one manhole side, the power unit is installed on the ground of one manhole side. Then, the belt-like member is drawn out spirally from the winding body for transportation, drawn into the existing pipe from one manhole or through one manhole, and supplied to the joining mechanism of the pipe making machine. Further, the power supply line of the power unit is passed through the inside of the hollow portion of the transport winding body and the spiral belt-like member that is drawn out of the transport winding body and supplied to the joining mechanism of the pipe making machine. Connected to the motor via a rotary joint. If the motor of the joining mechanism is rotationally driven in this state, the joining mechanism sandwiches and feeds the belt-like member, and relatively moves around the belt-like member in the direction opposite to the feeding direction. In other words, the pipe making machine is rotated around the axis of the existing pipe, the adjacent joints are joined together to produce a renovated pipe, and a new strip member is supplied to the renovated pipe produced without rotation. Then, the rehabilitation pipe is additionally formed in the axial direction of the existing pipe.

  At this time, the power supply line for supplying power to the motor of the joining mechanism passes through the hollow portion of the transport winding body in which the belt-like member is wound in a hollow cylindrical shape, and is drawn out from the transport winding body to make a pipe making machine The pipe making machine rotates around the axis of the existing pipe because it passes through the inside of the spiral belt member supplied to the joint mechanism and is connected to the motor of the joint mechanism through a rotary joint. However, the relative positional relationship with the spiral belt-shaped member does not change. Therefore, the power supply line is not entangled with the belt-like member, and the pipe making operation can be performed smoothly.

  Since the power supply line is connected to the rotary joint, the power supply line does not rotate in conjunction with the rotation of the pipe making machine, and the power supply line is not twisted.

In the present invention, a pipe making machine having a joining mechanism for joining joint portions of adjacent strip members is installed in a manhole, and a spiral strip member having joint portions formed on both side edges is drawn into the manhole. To the joint mechanism of the pipe making machine and rotate the pipe making machine around the axis of the existing pipe to join adjacent joints together to make a renovated pipe. and while adding formed in the axial direction of the existing pipe a rehabilitating pipe is newly supplied strip in rehabilitating pipe, and pulling in the opposite direction to the additional formation direction of the rehabilitating pipe further raw tube or pipe producing machine Is a method of making a rehabilitating pipe that is inserted into an existing pipe by pressing a transporting roll and a power unit in which a belt-like member is wound into a hollow cylinder, and the ground on the one manhole side where the pipe making machine is installed. The power supply line of the power unit is installed in the It is characterized in that it is connected to the motor of the joining mechanism through a rotary joint through the inside of a spiral belt-like member that is drawn out from the hollow portion and the winding body for transportation and supplied to the joining mechanism of the pipe making machine. Is.

According to the present invention, a transporting body and a power unit in which a pipe making machine having a joining mechanism is installed in one manhole, and a belt-like member having joints formed on both side edges is wound into a hollow cylindrical shape. Is installed on the ground on one manhole side where the pipe making machine is installed. Then, the belt-like member is drawn out spirally from the winding body for transportation, and is supplied to the joining mechanism of the pipe making machine in one manhole. Further, the power supply line of the power unit is passed through the inside of the hollow portion of the transport winding body and the spiral belt-like member that is drawn out of the transport winding body and supplied to the joining mechanism of the pipe making machine. Connected to the motor via a rotary joint. If the motor of the joining mechanism is rotationally driven in this state, the joining mechanism sandwiches and feeds the belt-like member, and relatively moves around the belt-like member in the direction opposite to the feeding direction. That is, in one manhole, the pipe making machine is rotated around the axis of the existing pipe, the adjacent joints are joined together to produce a renovated pipe, and the renovated pipe is produced without rotation. new the rehabilitating pipe by supplying a belt-like member is appended formed in the axial direction of the existing pipe, combined, tow in a direction opposite to the addition method of forming a rehabilitating pipe further raw tube, or push the pipe producing machine And insert it into the existing pipe.

  At this time, the power supply line for supplying power to the motor of the joining mechanism passes through the hollow portion of the transport winding body in which the belt-like member is wound in a hollow cylindrical shape, and is drawn out from the transport winding body to make a pipe making machine The pipe making machine rotates around the axis of the existing pipe because it passes through the inside of the spiral belt member supplied to the joint mechanism and is connected to the motor of the joint mechanism through a rotary joint. However, the relative positional relationship with the spiral belt-shaped member does not change. Therefore, the power supply line is not entangled with the belt-like member, and the pipe making operation can be performed smoothly.

  Since the power supply line is connected to the rotary joint, the power supply line does not rotate in conjunction with the rotation of the pipe making machine, and the power supply line is not twisted.

  In the present invention, it is preferable that the power unit includes a power generation unit and a hydraulic unit, and the motor of the joining mechanism is a hydraulic motor. As a result, the generator is driven through the engine of the power generation unit, the hydraulic pump is driven through the electric motor of the hydraulic unit with the generated electric power, and the hydraulic oil discharged from the hydraulic pump is supplied to the hydraulic piping and the rotary joint. Thus, the hydraulic motor can be driven to rotate and the hydraulic motor of the joining mechanism can be driven to rotate, and a large rotational torque due to the hydraulic pressure can be obtained.

  In the present invention, the power unit is preferably a power generation unit, and the motor of the joining mechanism is preferably an electric motor. Thus, the generator can be driven via the engine, and the generated electric power can be supplied to the electric motor of the joining mechanism via the power cable and the rotary joint to rotate the electric motor. Compared with the case where pressure oil is supplied and refluxed using the oil, the handling becomes easier.

  In the present invention, a pipe making machine having a joining mechanism that joins joint portions of adjacent strip members is installed in an existing pipe, and a spiral strip member having joints formed on both side edges is drawn into the existing pipe. To the joint mechanism of the pipe making machine and rotate the pipe making machine around the axis of the existing pipe to join adjacent joints together to make a renovated pipe. A method for producing a rehabilitation pipe in which a new band member is supplied to the rehabilitation pipe and the rehabilitation pipe is additionally formed in the axial direction of the existing pipe. Installed on the ground of one manhole or one manhole side, installed the generator on the ground of one manhole side, installed the hydraulic unit in the existing pipe, and connected the power cable of the generator to the transport roll Pulled out from the hollow part and the transport roll The inside of the spiral belt member supplied to the joint mechanism of the pipe making machine is passed through and connected to the hydraulic unit directly or via a transformer, and the hydraulic piping of the hydraulic unit is rotated to the hydraulic motor of the joint mechanism The connection is made through a joint.

  According to the present invention, a pipe making machine having a joining mechanism is installed in an existing pipe, while a transporting wound body in which a belt-like member having joints formed on both side edges is wound into a hollow cylindrical shape is attached to one manhole or While installing on the ground of one manhole side, the generator is installed on the ground of one manhole side. A hydraulic unit is installed in the existing pipe. Then, the belt-like member is drawn out spirally from the winding body for transportation, drawn into the existing pipe from one manhole or through one manhole, and supplied to the joining mechanism of the pipe making machine. Further, the power cable from the generator is passed through the hollow portion of the transport winding body and the inside of the spiral belt-shaped member that is drawn out of the transport winding body and supplied to the joining mechanism of the pipe making machine. Connect directly or through a transformer to the electric motor. Furthermore, the hydraulic piping from the hydraulic pump of the hydraulic unit is connected to the hydraulic motor of the joining mechanism via a rotary joint. If the hydraulic motor of the joining mechanism is rotationally driven in this state, the joining mechanism sandwiches and sends out the belt-like member, and relatively moves around the belt-like member in the direction opposite to the feeding direction. In other words, the pipe making machine is rotated around the axis of the existing pipe, the adjacent joints are joined together to produce a renovated pipe, and a new strip member is supplied to the renovated pipe produced without rotation. Then, the rehabilitation pipe is additionally formed in the axial direction of the existing pipe.

  At this time, the power cable from the generator passes through the hollow portion of the transport winding body in which the belt-like member is wound into a hollow cylindrical shape, and is drawn out from the transport winding body and supplied to the joining mechanism of the pipe making machine. The pipe making machine rotates around the axis of the existing pipe because it is connected to the electric motor that drives the hydraulic pump of the hydraulic unit directly or via a transformer. Even so, the relative positional relationship with the spiral belt-shaped member does not change. Therefore, the power cable is not entangled with the belt-like member, and the pipe making operation can be performed smoothly.

  However, since the hydraulic motor of the joining mechanism and the hydraulic pump of the hydraulic unit installed in the existing pipe are connected via the hydraulic pipe, the power supply in which the hydraulic pipe is connected to the hydraulic unit as the pipe making machine rotates It will get tangled in the cable. For this reason, after a certain length of pipe making work, it is necessary to interrupt the pipe making work, release the connection of the hydraulic pipe to the hydraulic unit or rotary joint, and turn back the hydraulic pipe to the power cable. It becomes.

  Since the hydraulic piping is connected to the rotary joint, it does not rotate in conjunction with the rotation of the pipe making machine, and the hydraulic piping itself does not twist.

  According to the present invention, even if it is not possible to open both manholes in the construction section, the rehabilitating pipe can be smoothly made by supplying the belt-like member and power to the pipe making machine through one opened manhole. can do.

It 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. It is sectional drawing explaining the joining process of the strip | belt-shaped member of FIG. It is process drawing explaining one Embodiment of the pipe manufacturing method of the rehabilitation pipe | tube of this invention. It is a perspective view of the pipe making machine which enforces the pipe making method of the rehabilitation pipe of the present invention. It is a front view of the pipe making machine of FIG. It is the front view and top view explaining the link body of the shaping | molding frame which comprises the pipe making machine of FIG. It is a top view explaining the link body of the shaping | molding frame to which the joining mechanism which comprises the pipe making machine of FIG. 4 was attached. It is a side view which shows the joining mechanism which comprises the pipe making machine of FIG. It is the schematic explaining the modification of one Embodiment of the pipe manufacturing method of the rehabilitation pipe | tube of this invention. It is process drawing explaining the other modification of one Embodiment of the pipe manufacturing method of the rehabilitation pipe | tube of this invention. It is process drawing explaining other embodiment of the pipe manufacturing method of the rehabilitation pipe | tube of this invention. It is sectional drawing which shows the modification of a strip | belt-shaped member, and an exploded perspective view which abbreviate | omits and shows a joining state partially.

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

  First, prior to describing an embodiment of a method for producing a rehabilitated pipe according to the present invention, a strip member 100 and a pipe making machine 1 used will be described.

  As shown in FIG. 1, the belt-like member 100 is formed by extruding a flexible synthetic resin, for example, hard vinyl chloride, polyethylene, polypropylene, etc., and wound into a hollow cylinder to be wound for transportation. Formed in D (see FIG. 3) and transported to the site. The belt-like member 100 is provided with a plurality of (three in the embodiment) T-shaped reinforcing ribs 102 on the back surface of a belt-like substrate 101 with the tips positioned parallel to the substrate 101. A bonding projection 103 is erected on the back surface of one side edge of the substrate 101. Further, the other side edge portion of the substrate 101 is formed in a stepped portion 104 stepped down to the back side by the thickness of the substrate 101 so that the side edge portion of the substrate 101 provided with the bonding convex portion 103 is disposed. In the stepped portion 104, a joint concave portion 105 into which the joint convex portion 103 can be fitted is provided. An inclined rib 106 that is inclined so as to be positioned on the protruding side of the bonding recess 105 as it is separated from the substrate 101 is formed in the bonding recess 105, and the tip of the inclined rib 106 is one side edge of the band-shaped member 100. Is forming.

  Such a belt-like member 100 is supplied to the pipe making machine 1 to be described later so that the back surface side of the substrate 101, that is, the side where the reinforcing ribs 102 and the like are erected is the outer peripheral side. As shown in a) and (b), of the two band-like members 100, 100 adjacent to each other, the bonding projection 103 of one band-like member 100 is inside (preceding) the bonding depression 105 of the other band-like member 100. By fitting from the inner peripheral side of the belt-like member 100, these adjacent belt-like members 100, 100 are joined to each other to produce a rehabilitated pipe S (see FIGS. 3 and 4) having a predetermined pipe diameter. Can do.

  At this time, the side edge portion of the substrate 101 provided with the joining convex portion 103 of the subsequent strip-shaped member 100 is arranged at the stepped portion 104 of the preceding strip-shaped member 100, and the joining convex portion 103 of the subsequent strip-shaped member 100 is formed. The reinforcing rib 102 on the provided side is locked to the inclined rib 106 of the preceding belt-like member 100.

  Next, the pipe making machine 1 will be described with reference to FIGS. 4 and 5.

  The pipe making machine 1 includes a forming frame 2 that guides the belt-like member 100 in a spiral shape, a plurality of guide rollers 3 that are rotatably provided on the forming frame 2, and an adjacent spiral shape that is attached to the forming frame 2. The belt-like members 100 and 100 are joined to each other and a joining mechanism 4 that joins them together.

  As shown in FIG. 6, the molding frame 2 includes a plurality of link bodies 21 formed by rotatably connecting an inner link frame 22 and an outer link frame 23 via a connecting shaft 24. The individual link bodies 21 are connected in order to form a substantially annular shape.

  Here, the inner link frame 22 and the outer link frame 23 constituting each link body 21 are a pair of link plates 221 and 231 opposed to each other in the front-rear direction, and one end portions of the pair of link plates 221 and 231 opposed to each other. It is formed from connecting plates 222 and 232 installed between them. Then, the other end portions of the pair of link plates 231 and 231 in the outer link frame 23 are overlapped with the other end portions of the pair of link plates 221 and 221 in the inner link frame 22, respectively. The link body 21 is formed by being rotatably connected to each other.

  Adjacent link bodies 21 and 21 are detachably connected via bolts and nuts by appropriately connecting connection plates 222 and 232 of link frames 22 and 23 and connection plates 222 and 232 of link frames 22 and 23. .

  However, if a specific pair of adjacent link bodies 21 and 21 can be attached and detached so that the forming frame 2 can be formed in a straight line, the remaining connecting plates 222 and 232 are fixed so as not to be attached and detached by welding or the like. It doesn't matter.

  Further, a rotation restricting piece 26 is provided at each other end of the pair of link plates 221 and 221 of the inner link frame 22, while each other end of the pair of link plates 231 and 231 of the outer link frame 23. The notch 27 corresponding to the rotation restricting piece 26 described above is formed over a certain range on a set radius with the rotation center of the connecting shaft 24 as the center. Thereby, the rotation of the outer link frame 23 relative to the inner link frame 22 is set within a set angle range until the rotation restricting piece 26 of the inner link frame 22 and the cutout portion 27 of the outer link frame 23 abut. The inner link frame 22 and the outer link frame 23 of the link body 21 are prevented from bending inward or outward.

  The guide roller 3 is rotatably provided on the connecting shaft 24 of each link body 21. Here, the guide roller 3 is made of synthetic resin or metal, is rotatably supported around the connecting shaft 24 via a bearing 25, and contacts the flat inner surface of the strip member 100, that is, the inner peripheral surface of the rehabilitating pipe S. To do.

  Further, the guide roller 3 is in the existing pipe K, and is piped while moving around in contact with the inner peripheral surface of the rehabilitated pipe S piped from the adjacent strip members 100 and 100 joined together by the joining mechanism 4. In order to move the machine 1 in the axial direction of the existing pipe K, the machine 1 is arranged so as to be perpendicular to the belt-like member 100 constituting the rehabilitation pipe S. In order to arrange the guide roller 3 so as to be perpendicular to the belt-like member 100 constituting the rehabilitation pipe S, for example, a connecting portion between a pair of link bodies 21 and 21 adjacent to the joining mechanism 4 of the molding frame 2. The one link body 21 may be moved in the tube axis direction with respect to the other link body 21 and fixed to the joining mechanism 4 in the moved state.

  Of the link bodies 21, the link body 21 to which the joining mechanism 4 is attached is provided with a tube-making roller 42 to be described later instead of the guide roller 3, and is joined to the rotation direction of the tube-making machine 1. About the link body 21 behind the mechanism 4, the direction opposite to the direction in which the rehabilitating pipe S is formed by the width of the belt-like member 100 rather than the link body 21 to which the joining mechanism 4 is attached so as not to interfere when the belt-like member 100 is supplied. (See FIG. 7).

  As shown in FIG. 8, the joining mechanism 4 includes a pinch roller 41 in which a tube forming roller 42 and a drive roller 43 are combined, and a gear box 44 fixed to the outer link frame 23 of the link body 21 in the molding frame 2. The rotating shaft of the tube-forming roller 42 and the rotating shaft of the driving roller 43 are axial with respect to the lead angle of the renovated tube S. The hydraulic motor 45 rotates the pinch roller 41 via the gears 441, 442, and 443. Are arranged so as to be orthogonal to each other and are rotatably supported by the gear box 44 together with the output shaft of the hydraulic motor 45. Then, by rotating the hydraulic motor 45, the tube-forming roller 42 is fixed to the output shaft, the rotation shaft of the tube-forming roller 42, and the rotation shaft of the drive roller 43, and the gears 441, 442 and 443 are engaged with each other. The rotation direction is set so that the driving roller 43 is rotated in the opposite direction, and the belt-shaped member 100 is sandwiched between the tube-making roller 42 and the driving roller 43 and sent out.

  Here, the tube-forming roller 42 has a length that is approximately twice the width of the belt-like member 100 and is formed into a cylindrical shape with steel or the like, and has a preceding spiral belt-like member 100 and a subsequent spiral shape. The outer diameter is set so that the outer peripheral surface contacts and rotates with the smooth inner peripheral surface of the rehabilitation pipe S formed by the adjacent band members 100 and 100.

  Further, the driving roller 43 includes reinforcing ribs 102 and 102 of the belt-like members 100 in the belt-like members 100 and 100 that are adjacent to each other by joining the preceding spiral belt-like member 100 and the following spiral belt-like member 100. A plurality of strips having a width that can be inserted between adjacent reinforcing ribs 102, 102 of the belt-like member 100 are provided between the outer peripheral surface and the outer peripheral surface of the tube-forming roller 42. The outer diameter is set so as to have an interval corresponding to the thickness of the substrate 101 of the belt-like member 100. Therefore, the outer peripheral surface of the driving roller 43 is the belt-like member 100 on the side that becomes the outer peripheral surface of the rehabilitating pipe S by the adjacent belt-like members 100 and 100 joined to each other between the adjacent reinforcing ribs 102 and 102 of each belt-like member 100. Rotates in contact with the back side.

  Furthermore, the outer peripheral surface of the drive roller 43 is knurled, and rotates without sliding with respect to the adjacent band-shaped members 100 and 100 joined.

  The hydraulic motor 45 is driven by pressure oil supplied from a power unit G composed of a power generation unit and a hydraulic unit. That is, the power unit G is not shown in detail, but the generator is driven via the engine of the power generation unit, while the electric motor of the hydraulic unit is driven by the electric power generated by the generator, Then, the hydraulic pump is driven, and the generated pressure oil is supplied to the hydraulic motor 45 via a hydraulic pipe P, for example, a flexible hose. In this case, the hydraulic pipe P extending from the power unit G is connected to the hydraulic motor 45 via the rotary joint 46 (see FIG. 4), and supplies pressure oil without affecting the circular movement (revolution) of the pipe making machine 1. can do.

  Next, a construction procedure for rehabilitating the existing pipe K using the pipe making machine 1 configured as described above will be described.

  First, the existing pipe K is provided with a manhole for each predetermined span. In this example, one manhole M1 is opened, but the other manhole M2 is closed, and one manhole M1 is opened. Is a starting manhole in the construction target area (rehabilitation area), and the case where the rehabilitation pipe S is piped toward the other manhole M2 in the existing pipe K will be described.

  As preparation before construction, the rehabilitation pipe S is manufactured by a transport roll D (with a turntable) in which the belt-like member 100 shown in FIG. Are prepared, and the transporting roll D and the power unit G are arranged on the ground on the side of one manhole M1. Moreover, the pipe making machine 1 is carried in and installed in the existing pipe K to be rehabilitated through one manhole M1. At that time, the pipe making machine 1 is disassembled into the forming frame 2 provided with the guide roller 3 and the joining mechanism 4, and then assembled.

  In addition, about the shaping | molding flame | frame 2, the connection part of a pair of adjacent link bodies 21 and 21 is removed, a plurality of link bodies 21 are carried in one row, and a pair of adjacent link bodies 21, 21 connecting portions are connected to form a substantially annular shape.

  Moreover, about the pipe making machine 1, according to the pipe diameter of the renovated pipe S to manufacture, the circumference (the number of the link bodies 21) of the shaping | molding frame 2 is adjusted.

  Furthermore, the pipe making machine 1 is adjusted so as to have a spiral pitch corresponding to the inner diameter of the existing pipe K to be rehabilitated and the width of the band-shaped member 100 to be used.

  When such a preparatory work is completed, the belt-like member 100 is pulled out from the inner peripheral side of the transporting roll D placed on the ground, and drawn into the existing pipe K through one manhole M1, and the joining mechanism in the pipe making machine 1 4 is inserted into the pinch roller 41 and sent to the outside of the guide roller 3 provided on the molding frame 2.

  Subsequently, the pipe making machine 1 is rotated around the axis of the existing pipe K in a state where the band-shaped member 100 fed to the outside of the guide roller 3 is sandwiched between the inner peripheral surface of the existing pipe K, and the band-shaped member 100 is rotated. It winds around the molding frame 2 several times (1 to 3 times) to produce the rehabilitation pipe Sa for start. At this time, the pipe making machine 1, that is, the joining mechanism 4 circulates around, so that the joining convex portion 103 of the subsequent spiral belt-like member 100 is moved to the inner circumference of the joining concave portion 105 of the preceding spiral belt-like member 100. The side edge portion of the substrate 101 provided with the joining convex portion 103 of the subsequent spiral belt-like member 100 is disposed at the stepped portion 104 of the preceding spiral belt-like member 100 while being inserted from the side, The reinforcing rib 102 on the side where the joint convex portion 103 of the succeeding spiral band member 100 is engaged with the inclined rib 106 of the preceding spiral band member 100 so that the adjacent spiral band member 100 is adjacent. , 100 are joined together.

  Once the start rehabilitation pipe Sa has been produced, the hydraulic pipe P from the power unit G is passed through the hollow portion of the transport winding D, and is drawn out from the transport winding D and extends in a spiral shape. After passing through the inside of the member 100 and withdrawing to the middle of the rehabilitation region of the existing pipe K, it is folded and connected to the rotary joint 46 of the joining mechanism 4 in the pipe making machine 1.

  If the hydraulic pipe P is connected, the joining mechanism 4 of the pipe making machine 1 is driven. As a result, the hydraulic motor 45 of the joining mechanism 4 rotates to rotate the pinch roller 41, and the tube-making roller 42 and the drive roller 43 sandwich and feed the belt-shaped member 100, and relatively move along the belt-shaped member 100. Moves (revolves) in the direction opposite to the feed direction. That is, when the joining mechanism 4 is driven, the pipe making machine 1 revolves around the axis of the renovated pipe S.

  At this time, the belt-like member 100 guided by the forming frame 2 and the guide roller 3 that revolves around by the rotation of the pinch roller 41 and relatively fed so as to be adjacent to the starting rehabilitation pipe Sa has the joint projection 103 formed thereon. While inserting into the junction recessed part 105 of the strip | belt-shaped member 100 of the starting rehabilitation pipe Sa from an inner peripheral side, the rear end side edge part of the succeeding strip-shaped member 100 is set in the stepped part 104 of the strip-shaped member 100 of the starting retreading pipe Sa. Further, the reinforcing ribs 102 on the rear end side of the succeeding band member 100 are engaged with the inclined ribs 106 of the band member 100 of the starting rehabilitation pipe Sa, and the adjacent spiral band members 100, 100 are joined to each other. Then, the rehabilitation pipe S is manufactured (see FIG. 2B).

  In this way, the pinch roller 41 of the joining mechanism 4 joins the spiral strip member 100 following the leading spiral strip member 100 to produce the rehabilitated tube S while forming the regenerated tube S on the inner peripheral surface of the existing tube K. As a result, the pipe making machine 1 pipes the belt-like member 100 into the rehabilitated pipe S. At that time, the pipe making machine 1 moves (revolves) in the circumferential direction and at the same time the existing pipe toward the other manhole M2. Move in K.

  That is, the belt-like member 100 supplied to the pipe making machine 1 is joined to the belt-like member 100, 100 adjacent to each other by the pinch roller 41 of the joining mechanism 4 to be piped into the rehabilitating pipe S, and the rehabilitated pipe. The pipe S is arranged in the existing pipe K without rotating, and the spiral band member 100 is newly supplied to the other manhole M2 side of the rehabilitated pipe S so that the rehabilitated pipe S faces the other manhole M2. It is additionally formed in the axial direction of K.

  At this time, the hydraulic pipe P is pulled out from the hollow portion of the transport winding body D in which the belt-like member 100 is wound into a hollow cylinder and the transport winding body D, and is supplied to the joining mechanism 4 of the pipe making machine 1. It passes through the inside of the belt-shaped member 100 and is connected to the rotary joint 46 of the joining mechanism 4. Therefore, even if the pipe making machine 1 rotates around the axis of the existing pipe K, the relative position of the hydraulic pipe P with the spiral band member 100 does not change, and therefore the hydraulic pipe P becomes entangled with the band member 100. No, the pipe making work can be performed smoothly.

  Since the hydraulic pipe P is connected to the rotary joint 46, the hydraulic pipe P does not rotate in conjunction with the rotation of the pipe making machine 1, and the hydraulic pipe P is not twisted.

  When the pipe production of the rehabilitation pipe S is completed over the entire length of the construction target area (rehabilitation area) of the existing pipe K, the strip-like member 100 at the end of the rehabilitation pipe S is cut, and then the pipe making machine 1 is disassembled, The pipe making machine 1 is removed.

  That is, since the forming frame 2 is formed by connecting a plurality of link bodies 21 to each other, the forming frame 2 is connected to the link body by removing the connection of the connecting portions of the pair of adjacent link bodies 21 and 21. It can be one row of 21.

  Here, the joining mechanism 4 of the pipe making machine 1 does not include the driving roller 43 but includes the pipe forming roller 42 and a pressing roller (not shown) that is provided on the forming frame 2 and feeds the belt-shaped member 100. In this case, since there is no portion projecting in the outer diameter direction, the renovated pipe S can be produced with almost no gap between the existing pipe K.

  In the above-described embodiment, the remanufactured pipe S is formed from one manhole M1 to the other manhole M2 with one opened manhole M1 as a starting manhole and the other closed manhole M2 as a reaching manhole. Although the case has been described, it is also possible to make the rehabilitation pipe S from the other manhole M2 to the one manhole M1 with the one manhole M1 opened as the reaching manhole, the other manhole M2 closed as the starting manhole. .

  That is, as shown in FIG. 9, one opened manhole M1 is used as a reaching manhole, and the transport roll D and the power unit G of the belt-like member 100 are installed on the ground on the one manhole M1 side. The inside of the spiral belt-shaped member 100 drawn out from the hollow portion of the transport winding body D of the belt-shaped member 100 and the transport winding body D and supplied to the joining mechanism 4 of the pipe making machine 1. You may make it pass through and connect with the hydraulic motor 45 of the joining mechanism 4 of the pipe making machine 1 arrange | positioned in the existing pipe K through the rotary joint 46. FIG.

  If such a pipe making method is adopted, if the rehabilitated pipe S of a certain length is produced and the existing pipe K is rehabilitated, one manhole is not waited for completion of rehabilitation of the entire construction section. Since equipment such as a support work can be carried into the existing pipe K through M1, the installation of the support work can be started from the portion where the rehabilitation pipe S is manufactured. Therefore, after the renovation of the entire construction section is completed, compared with the conventional pipe making method in which the space between the inner peripheral surface of the existing pipe K and the outer peripheral surface of the renovated pipe S is filled with the backfill material, Since the work and the filling work of the backfill material can be performed in parallel, there is an advantage that the construction period can be greatly shortened.

  In addition, a case has been described in which a power unit G including a power generation unit and a hydraulic unit is installed on the ground on one manhole M1 side, and pressure oil is supplied to the hydraulic motor 45 of the joining mechanism 4 using the hydraulic piping P. When an electric motor can be adopted as the motor of the joining mechanism 4, only the power generation unit is installed as the power unit G on the ground on one manhole M1 side, and the generated electric power is supplied to the electric motor via the power cable and the rotary joint. You may make it do.

  The power cable in this case is also the inner side of the spiral belt-shaped member 100 drawn out from the hollow portion of the transport winding D of the belt-shaped member 100 and the transport mechanism D and supplied to the joining mechanism 4 of the pipe making machine 1. It is necessary to connect to the electric motor of the joining mechanism 4 of the pipe making machine arranged in the existing pipe K through a rotary joint.

  Further, in the case where the large-diameter rehabilitating pipe S is manufactured over a long distance, in an environment where an electric motor cannot be employed, as shown in FIG. 10, the power generation unit G1 is connected to one manhole M1 side as shown in FIG. The hydraulic unit G2 is installed in the existing pipe K in the vicinity of the pipe making machine 1, and the power cable C from the power generation unit G1 is spiraled from the hollow portion of the transport winding D and the transport winding D. Is passed through the inside of the strip-shaped member 100 drawn out like a pipe and connected to the electric motor of the transformer T or the hydraulic unit G2 directly, and the hydraulic pipe P from the hydraulic pump of the hydraulic unit G2 is connected to the hydraulic motor 45 of the joining mechanism 4 You may make it supply to a rotary joint.

  Also in this case, the power cable C from the power generation unit G1 passes through the hollow portion of the transport winding D of the strip member 100, and passes through the inside of the strip member 100 drawn out spirally from the transport spool 100. Since it passes through and is connected to the electric motor of the hydraulic unit G2 directly or via the transformer T, even if the pipe making machine 1 rotates around the axis of the existing pipe K, the power cable C remains in the strip member 100. The pipe making operation can be performed smoothly. In addition, if the power cable C from the power generation unit G1 is connected to the transformer T and transformed into the voltage required for the hydraulic unit G2, it is possible to send a high voltage with the small diameter power cable C in anticipation of a voltage drop in advance. The power cable C can be easily handled.

  However, since the hydraulic pipe P is connected from the hydraulic pump of the hydraulic unit G2 installed in the existing pipe K to the hydraulic motor 45 of the joining mechanism 4, the hydraulic pipe P is connected to the hydraulic unit as the pipe making machine 1 rotates. The power cable C connected to G2 is entangled. For this reason, after performing the pipe making work for a certain length, the pipe making work is interrupted, the connection of the hydraulic pipe P to the hydraulic unit G2 or the rotary joint 46 is released, and the entanglement of the hydraulic pipe P to the power cable C is removed. It is necessary to perform return work.

  Furthermore, although the case where the transporting roll D of the belt-like member 100 is installed on the ground on the one manhole M1 side has been described, depending on the size of the manhole, the transporting roll D of the belt-like member 100 may be placed on the one manhole M1. It may be installed inside.

  Moreover, although the case where the belt-shaped member 100 is pulled out from the inner peripheral side of the transporting wound body D in which the belt-shaped member 100 is wound in a hollow cylindrical shape and supplied to the pipe making machine 1 in the existing pipe K has been described, The belt-like member 100 can be drawn out spirally from the outer peripheral side of the transport roll D and supplied to the pipe making machine 1. Specifically, the transport winding D is rotatably supported by using the center of the hollow portion of the transport winding D as a horizontal rotation axis, and outwards along the horizontal rotation axis direction while loosening the belt-like member 100. By pulling out, the spiral strip member 100 can be supplied.

  By the way, in embodiment mentioned above, the pipe making machine 1 is installed in the existing pipe K, the pipe making machine 1 is rotated around the axis center of the existing pipe K, the renovated pipe S is piped, and it manufactures without rotating. Although the pipe manufacturing method which supplies the strip | belt-shaped member 100 to the renovated pipe S newly piped and adds and forms the renovated pipe S was demonstrated, the pipe making machine 1 was installed in one manhole M1 opened, and the pipe making machine While 1 is rotated around the axis of the existing pipe K, the rehabilitation pipe S is formed, and the belt-like member 100 is newly supplied to the rehabilitation pipe S that is formed without rotation, and the rehabilitation pipe S is additionally formed. Pulling the renovated pipe S that has been piped in the direction opposite to the direction in which the regenerated pipe S is added, or pressing the pipe making machine 1 and carrying it into the existing pipe K to rehabilitate the existing pipe K You can also.

  Hereinafter, the construction procedure for installing the pipe making machine 1 in the opened one manhole M1 and rehabilitating the existing pipe K will be described with reference to FIG.

  This pipe making machine 1 also has the same structure as that of the above-described embodiment, that is, a forming frame 2 that guides the supplied strip member 100 in a spiral manner, and a plurality of guide rollers that are rotatably provided on the forming frame 2. 3 and a joining mechanism 4 which is attached to the molding frame 2 and joins the adjacent spiral belt-like members 100, 100 to each other. Omitted.

  A transporting roll D (with a turntable) on which a belt-like member 100 is wound is installed on the ground on the side of one opened manhole M1, and a power unit G including a generator and a hydraulic unit is installed. Further, the pipe making machine 1 is carried into one manhole M1 using a crane or the like and assembled.

  On the other hand, a winch W for pulling the rehabilitation pipe S into the existing pipe K is installed in the other manhole M2 that is closed, and the strips w such as wires and ropes wound around the winch drum are not shown. Lead to one manhole M1 side using a wire.

  When the preparatory work is completed, the belt-like member 100 is pulled out from the inner peripheral side while rotating the transporting roll D around the axis, and is drawn into one manhole M1, and the leading end is joined to the joining mechanism 4 of the pipe making machine 1. To introduce.

  Then, in one manhole M1, in a state where the pipe making machine 1 is lifted using a crane or the like, the joining mechanism 4 is rotated forward to feed the belt-shaped member 100, and after winding about two rounds, the belt-shaped member 100 is squeezed and held by the guide roller 3, so that the inner diameter corresponding to the outer periphery of the forming frame 2, that is, the inner diameter of the existing pipe K is slightly smaller. Next, the belt-like member 100 is further wound around the forming frame 2 of the pipe making machine 1 for about 4 to 7 rounds, and the start rehabilitation pipe Sa having a slightly smaller diameter than the inner diameter of the existing pipe K is produced. Thereafter, the leading end of the striatum w drawn into one manhole M1 is connected to the leading portion of the start rehabilitation pipe Sa.

  Next, the hydraulic pipe P from the power unit G is passed through the hollow portion of the transport winding D, and the inside of the strip-shaped member 100 that is drawn out of the transport winding D and extends in a spiral shape is passed through the pipe making machine. 1 is connected to the rotary joint 46 of the joining mechanism 4, and the tip of the start rehabilitation pipe Sa is suspended from the existing pipe opening in one manhole M1, and then the joining mechanism 4 of the pipe making machine 1 is driven. That is, the joining mechanism 4 of the pipe making machine 1 is rotated forward in one manhole M1. Thereby, the joining mechanism 4 of the pipe making machine 1 is arranged around the axis of the existing pipe K in the opposite direction to the relative feeding direction of the strip member 100 with respect to the start rehabilitation pipe Sa supported by the existing pipe K. Rotate (revolve) to produce rehabilitation pipe S. In this case, the direction in which the pipe making machine 1 pipes the rehabilitated pipe S (is going to proceed) is the opposite direction to the existing pipe K to be rehabilitated.

  The winch W is driven simultaneously with this pipe making work, and the rehabilitated pipe S is pulled into the existing pipe K by the ridge body w at the same speed as the pipe making speed in the axial direction of the rehabilitated pipe S. . As a result, in the state where the pipe making machine 1 does not remove the rehabilitated pipe S and does not move from a fixed position in one manhole M1, the regenerated pipe S that has been piped is not wound around the existing pipe K. Inserted into.

  And if the rehabilitation pipe S is piped and inserted into the existing pipe K and reaches the other manhole M2, the strip member 100 is cut at the front side of the pipe making machine 1 and the end treatment is performed. The pipe making machine 1 is removed from the rehabilitated pipe S, and after the striated body w is removed from the rehabilitated pipe S, the pipe making machine 1 is disassembled and removed.

  Also in this embodiment, the hydraulic pipe P is drawn out from the hollow portion of the transport winding body D in which the belt-like member 100 is wound into a hollow cylinder and the transport winding body D, and supplied to the joining mechanism 4 of the pipe making machine 1. It passes through the inside of the spiral belt member 100 to be connected to the rotary joint 46 of the joining mechanism 4. Therefore, even if the pipe making machine 1 rotates around the axis of the existing pipe K, the relative position of the hydraulic pipe P with the spiral band member 100 does not change, and therefore the hydraulic pipe P becomes entangled with the band member 100. No, the pipe making work can be performed smoothly.

  In addition, in embodiment mentioned above, although the case where the renovated pipe | tube S was manufactured with the strip | belt-shaped member 100 shown in FIG. 1 was demonstrated, it is not limited to such a strip | belt-shaped member 100.

  For example, as shown in FIG. 12, a belt-like member 100 </ b> A including a belt-like body 110 and a connector 120 that joins the adjacent belt-like bodies 110 and 110 may be used.

  The band-shaped body 110 is formed by extruding a flexible synthetic resin, and a plurality of T-shaped reinforcing ribs 112 are located on the back surface of the band-plate-shaped substrate 111 so that the ends thereof are parallel to the substrate 111. Is provided. And the joint ditch | groove 113 is continuously formed in the both-sides edge part of the board | substrate 111 along a longitudinal direction, respectively.

  On the other hand, the connector 120 is formed with a pair of joint convex portions 121 that can be joined to the joint concave portions 113 and 113 at both side edges where the adjacent strips 110 and 110 are abutted, along the longitudinal direction.

  Thus, the leading edge side joining recess 113 of the preceding strip 110 and the leading edge joining recess 113 of the following strip 110 in a state where the front edge and the trailing edge of the strips 110, 110 adjacent to each other are abutted. By connecting and joining the connector 120 from the inner peripheral side of the belt-like body 110 across the belt, the belt-like member 100A formed by connecting the belt-like bodies 110, 110 adjacent to each other via the connector 120 can be formed. it can.

DESCRIPTION OF SYMBOLS 1 Pipe manufacturing machine 2 Forming frame 3 Guide roller 4 Joining mechanism 100,100A Strip member G Power unit G1 Power generation unit G2 Hydraulic unit C Power cable P Hydraulic piping K Existing pipe S Rehabilitation pipe M1, M2 Manhole

Claims (5)

  A pipe making machine having a joining mechanism for joining the joining portions of adjacent belt-like members is installed in an existing pipe, and a spiral belt-like member having joints formed on both side edges is drawn into the existing pipe. The pipe making machine is rotated around the axis of the existing pipe, adjacent joints are joined together to produce a renovated pipe, and the renovated pipe is produced without rotation. A method for producing a rehabilitating pipe in which a band-shaped member is newly supplied and a rehabilitating pipe is additionally formed in the axial direction of the existing pipe, and a transporting roll in which the band-shaped member is wound in a hollow cylindrical shape is connected to one manhole Installed on the ground on one manhole side and installed the power unit on the ground on one manhole side, and the power supply line of the power unit is drawn out from the hollow part of the transportation winding body and the transportation winding body to make a pipe Screw supplied to the machine's joining mechanism Pipe manufacturing method of rehabilitating pipe, characterized in that passed through the inner shaped for strip connected via a rotary joint to the motor of the joint mechanism. A pipe making machine having a joining mechanism that joins the joining portions of adjacent belt-like members to each other is installed in the manhole, and a spiral belt-like member having joints formed on both side edges is drawn into the manhole to make the pipe making machine The pipe making machine is rotated around the axis of the existing pipe, adjacent joints are joined together to produce a renovated pipe, and the renovated pipe is produced without rotation. new one to be added form in the axial direction of the existing pipe a rehabilitating pipe by supplying the belt-shaped member, and pulling in the opposite direction to the additional formation direction of the rehabilitating pipe further raw tube, or by pressing the pipe producing machine It is a pipe making method of a rehabilitation pipe to be inserted into an existing pipe, and a transporting roll and a power unit in which a belt-like member is wound in a hollow cylindrical shape are installed on the ground on one manhole side where a pipe making machine is installed, Connect the power supply line of the power unit to the hollow part of the And a rehabilitating pipe which is connected to a motor of the joining mechanism through a rotary joint through the inside of a spiral belt member drawn out from the winding body for transportation and supplied to the joining mechanism of the pipe making machine Pipe making method.   3. The method for producing a rehabilitated pipe according to claim 1, wherein the power unit includes a power generation unit and a hydraulic unit, and the motor of the joining mechanism is a hydraulic motor.   3. The method for producing a rehabilitated pipe according to claim 1, wherein the power unit is a power generation unit and the motor of the joining mechanism is an electric motor.   A pipe making machine having a joining mechanism for joining the joining portions of adjacent belt-like members is installed in an existing pipe, and a spiral belt-like member having joints formed on both side edges is drawn into the existing pipe. The pipe making machine is rotated around the axis of the existing pipe, adjacent joints are joined together to produce a renovated pipe, and the renovated pipe is produced without rotation. A method for producing a rehabilitating pipe in which a band-shaped member is newly supplied and a rehabilitating pipe is additionally formed in the axial direction of the existing pipe, and a transporting roll in which the band-shaped member is wound in a hollow cylindrical shape is connected to one manhole Installed on the ground on one manhole side, installed the generator on the ground on one manhole side, installed the hydraulic unit in the existing pipe, and connected the power cable of the generator to the hollow part of the Pipe making machine pulled out from the transport roll Connect to the hydraulic unit directly or via a transformer through the inside of the spiral belt member supplied to the joining mechanism, and connect the hydraulic piping of the hydraulic unit to the hydraulic motor of the joining mechanism via a rotary joint A method for producing a rehabilitated pipe, comprising:

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