WO2019171801A1 - Entretoise pour le réglage de position d'un tuyau de rénovation, et procédé de rénovation de tuyau utilisant ladite entretoise - Google Patents

Entretoise pour le réglage de position d'un tuyau de rénovation, et procédé de rénovation de tuyau utilisant ladite entretoise Download PDF

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Publication number
WO2019171801A1
WO2019171801A1 PCT/JP2019/002039 JP2019002039W WO2019171801A1 WO 2019171801 A1 WO2019171801 A1 WO 2019171801A1 JP 2019002039 W JP2019002039 W JP 2019002039W WO 2019171801 A1 WO2019171801 A1 WO 2019171801A1
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WO
WIPO (PCT)
Prior art keywords
wedge
pipe
shaped member
spacer
rehabilitation
Prior art date
Application number
PCT/JP2019/002039
Other languages
English (en)
Japanese (ja)
Inventor
神山　隆夫
長谷川　武司
史孝 本田
Original Assignee
株式会社湘南合成樹脂製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 株式会社湘南合成樹脂製作所 filed Critical 株式会社湘南合成樹脂製作所
Priority to JP2020504839A priority Critical patent/JP7260185B2/ja
Priority to KR1020207025889A priority patent/KR102683480B1/ko
Publication of WO2019171801A1 publication Critical patent/WO2019171801A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/18—Appliances for use in repairing pipes
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F3/00—Sewer pipe-line systems
    • E03F3/06—Methods of, or installations for, laying sewer pipes
    • E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining

Definitions

  • the present invention is for adjusting the position of a rehabilitation pipe that is inserted into a gap between an existing pipe and a rehabilitation pipe assembled by connecting segments in the existing pipe in the circumferential direction and the pipe length direction, and adjusting the position of the rehabilitation pipe relative to the existing pipe.
  • the present invention relates to a spacer and a pipe rehabilitation method using the spacer.
  • a repair method that repairs the pipeline by lining the inner peripheral surface without digging the existing pipe from the ground is practical It has become.
  • the above-described segments are connected in the circumferential direction to assemble a pipe unit, the pipe unit is connected in the pipe length direction via a connecting member, and a rehabilitated pipe is assembled in the pipe line.
  • a composite pipe is constructed by filling and hardening a filler such as grout between the existing pipe and the rehabilitation pipe.
  • the rehabilitated pipe is made of a plastic material, so that the specific gravity is smaller than that of the filler and floats on the filler.
  • a spacer as described in Patent Document 1 below is inserted between the existing pipe and the rehabilitation pipe, and the rehabilitation pipe is moved downward.
  • the filling material is injected by pressing and adjusting the position of the rehabilitation pipe.
  • the filler injected between the existing pipe and the rehabilitation pipe is large in the upper part of the rehabilitation pipe, and the rehabilitation pipe is pressed downward by the spacer described above, so that the filler is injected at the bottom of the rehabilitation pipe. It becomes difficult. Therefore, the layer thickness of the filler varies in the circumferential direction of the rehabilitation pipe, and the rehabilitation pipe may be subjected to different external pressures in the circumferential direction due to the filler and may be deformed. In order to prevent deformation of the rehabilitation pipe, as shown in Patent Documents 2 and 3 below, a support work is assembled inside the rehabilitation pipe.
  • a holding member is fixed to the segment so that the spacer inserted between the existing pipe and the rehabilitation pipe does not fall from the segment, and the spacer is held by the holding member (Patent Document 4 below).
  • the present invention was made in order to solve such problems, and it is possible to inject a filler over the entire circumference by inserting a spacer into the bottom or near the bottom of the existing pipe and the renovated pipe, It is an object of the present invention to provide a spacer for adjusting the position of a rehabilitating pipe that can prevent the rehabilitation pipe from being deformed without reassembling the rehabilitation pipe and to rehabilitate the existing pipe, and a pipe rehabilitation method using the rehabilitation pipe.
  • the present invention (Claim 1) A spacer for adjusting the position of a rehabilitation pipe inserted into a gap between the existing pipe and a rehabilitation pipe assembled by connecting segments in the circumferential direction and the pipe length direction in the existing pipe and adjusting the position of the rehabilitation pipe with respect to the existing pipe.
  • a first wedge having a side wall formed so as to be slidably held in the tube length direction by being fitted in a guide groove of a holding member fixed to the segment, and having a locking tooth on an inclined surface inclined at a predetermined angle A member
  • the first wedge-shaped member has an inclined surface inclined at the same angle as that of the first wedge-shaped member, and is movable in the insertion direction with respect to the first wedge-shaped member and not movable in the opposite direction.
  • a locking tooth that engages with the locking tooth of the wedge-shaped member has a second wedge-shaped member formed on the inclined surface,
  • the first and second wedge-shaped members are stacked with the inclined surfaces aligned so that the respective locking teeth engage with each other,
  • a convex portion or a concave portion extending in the tube length direction is formed on the side wall surface of the first wedge-shaped member, and the convex groove or concave portion of the side wall surface is fitted into the guide groove surface of the holding member facing the side wall surface.
  • a concave portion or a convex portion is formed, and movement of the first wedge-shaped member in a direction orthogonal to the pipe length direction and the circumferential direction is limited by the concave-convex fitting.
  • the present invention (Claim 5) A pipe rehabilitation method in which segments are connected in the circumferential direction and pipe length direction, and a rehabilitation pipe is laid in an existing pipe, Holding a first wedge-shaped member having locking teeth formed on an inclined surface inclined at a predetermined angle on a holding member fixed to the segment;
  • the first wedge-shaped member has an inclined surface inclined at the same angle as that of the first wedge-shaped member, and is movable in the insertion direction with respect to the first wedge-shaped member and not movable in the opposite direction.
  • a second wedge-shaped member having a locking tooth that engages with a locking tooth of the wedge-shaped member is formed on the inclined surface, and is superimposed on the first wedge-shaped member so that the respective locking teeth engage with each other.
  • the thickness of the entire spacer in which the first and second wedge-shaped members are overlapped increases stepwise. Adjusting, and And a step of injecting a filler between the rehabilitation pipe and the existing pipe, The spacers that overlap the first and second wedge-shaped members are inserted at a plurality of positions so that a gap is generated over the entire circumference between the rehabilitation pipe and the existing pipe, The holding member for holding the first wedge-shaped member of the spacer arranged at the bottom of the rehabilitated tube or in the vicinity of the bottom is fitted to the side wall of the first wedge-shaped member so that the first wedge-shaped member is connected to the tube length.
  • a guide groove is formed to hold it slidable in the direction
  • a convex portion or a concave portion extending in the tube length direction is formed on the side wall surface of the first wedge-shaped member slidably held in the guide groove, and the side wall surface is formed on the guide groove surface facing the side wall surface.
  • a concave portion or a convex portion is formed to be concavo-convex with the convex portion or concave portion of the dent, and movement of the first wedge-shaped member in a direction perpendicular to the pipe length direction and the circumferential direction is limited by the concave-convex fitting. To do.
  • the first wedge-shaped member of the spacer since the first wedge-shaped member of the spacer is held so as to be slidable in the tube length direction, the first wedge-shaped member is held so as to protrude outside the rehabilitation tube and is slid inside. Can do. Therefore, it becomes easy to install the rehabilitation pipe so that the first wedge-shaped member protrudes from the bottom of the rehabilitation pipe or near the bottom using the protruding first wedge-shaped member as a mark. Further, since the first wedge-shaped member is restricted from moving in the direction perpendicular to the pipe length direction and the circumferential direction, even if the first wedge-shaped member comes near the bottom or the bottom of the rehabilitation pipe, It is easy to form a gap with the existing pipe by installing a spacer near the bottom or near the bottom of the rehabilitation pipe. Therefore, a gap can be formed over the entire circumference between the rehabilitation pipe and the existing pipe, and the existing pipe can be renewed by injecting the filler between the rehabilitation pipe and the existing pipe over the entire circumference. It becomes possible.
  • FIG. 1 It is a perspective view which shows the structure of the 2nd wedge-shaped member of the spacer inserted in the upper part of a rehabilitation pipe
  • FIG. 15 is a cross-sectional view taken along the line AA in FIG. 14 showing a state in which the first wedge-shaped member of the spacer inserted in the bottom portion or near the bottom portion of the rehabilitation pipe is held by the holding member.
  • the present invention is suitable for rehabilitating or repairing existing large-diameter pipes such as sewer pipes, water pipes, tunnels, and agricultural waterways.
  • the rehabilitation pipe is described as having a circular cross-sectional shape perpendicular to the pipe length direction, but it is needless to say that the present invention can also be applied to rehabilitation pipes having shapes other than circular.
  • FIG. 1 shows the structure of a rehabilitation pipe segment 1 (hereinafter simply referred to as a segment).
  • the segment 1 includes an inner surface plate 101 constituting the inner peripheral surface of the rehabilitated pipe, side plates 102 and 103 having the same shape vertically arranged on both sides extending in the circumferential direction of the inner surface plate 101, and the tube length direction of the inner surface plate 101.
  • An integrally molded block-shaped member made of plastic comprising end plates 104, 105 having the same shape vertically extending at both ends extending in the same direction and inner plates 106, 107 having the same shape standing at equal intervals. It is.
  • the segment 1 has a shape that is curved into a predetermined angle that divides the circumference into a plurality of equal parts, for example, an arc of 60 degrees that divides the circumference into six parts.
  • the segment is not limited to an arc shape or a fan shape, and should be a rectangular parallelepiped or a shape that is rounded and bent at right angles according to the cross-sectional shape of the existing pipe, its size, or the repair location of the existing pipe. You can also.
  • the side plates 102 and 103 and the inner plate 106 have circular insertion holes 102a, 103a and 106a for passing through the connecting member 11 configured as bolts and nuts 12 (FIG. 3) for connecting the segment 1 in the tube length direction.
  • a plurality are formed at equal intervals in the circumferential direction.
  • a plurality of notches 107a into which the connecting member 11 can be inserted are also formed in the internal plate 107 at equal intervals.
  • the end plates 104 and 105 are formed with a plurality of circular insertion holes 104a and 105a for passing connection members such as bolts connecting the segments 1 in the circumferential direction.
  • the segment abuts the end plate 105 of the other segment and the end plate 104 of the other segment, and inserts the bolt 6 and the nut 7 through the work holes 102b and 103b formed in the side plates 102 and 103, and the bolt 6 and the nut 7 are inserted. It can be connected in the circumferential direction by screwing (FIG. 3).
  • a plurality of notches 102c, 103c, 106b for allowing a filler to be described later to pass therethrough are formed at the upper edges of the side plates 102, 103 and the inner plate 106, and the circumferential positions of the notches 106b formed in the inner plate 106 Is different from the circumferential positions of the notches 102c, 103c formed in the side plates 102, 103.
  • a ring-shaped tube unit 10 as shown in FIG. 2 can be assembled.
  • the tube unit 10 has a shape obtained when a circular tube is cut into a ring with a predetermined width D perpendicular to the tube length direction X, and its outer diameter is a little smaller than the inner diameter of an existing tube to be rehabilitated. Yes.
  • the segment corresponds to a member obtained when the tube unit 10 is divided into a plurality (preferably equally divided) in the circumferential direction C along the cut surface along the radial direction R.
  • FIG. 2 the inner surface plate 101, the side plates 102 and 103, and the end plates 104 and 105, which are the main structural members of the segment 1, are illustrated, and the reinforcing structures such as the inner plates 106 and 107 avoid complexity. Therefore, illustration is omitted.
  • a plurality of nuts 12 are fixed to each segment of the tube unit 10 using bolts 13.
  • a connecting member 11 is used in which a threaded portion 11a that is screwed with a nut 12 is formed at one end and a head 14 having a collar 14a is fixed at the other end.
  • the side plates 103 and 102 of both segments 1a and 1b are butted together, and the connecting member 11 is passed through the insertion hole 102a of the side plate 102 of the segment 1a, the insertion hole 106a of the inner plate 106, and the notch 107a of the inner plate 107, and the screw portion 11a.
  • the segment 1 is carried into the existing pipe 21 through the manhole 20, and the segments are sequentially arranged in the circumferential direction.
  • the pipe unit 10 is assembled by connecting.
  • the pipe unit 10 is sequentially connected in the pipe length direction using the connecting member 11 and the nut 12 by the method shown in FIG. 3, and the renovated pipe 40 is laid in the existing pipe 21.
  • a filler 30 such as grout is injected between the existing pipe 21 and the rehabilitation pipe 40.
  • the spacer 50 is arranged in the upper part of the rehabilitation pipe 40.
  • the first wedge-shaped member 51 whose upper surface is shown in FIG. 6a and the second wedge-shaped member 52 whose lower surface is shown in FIG. It is composed of layers. If the thickness of the spacer 50 is insufficient, the raising member 53 shown in FIG. 7 is used to increase the thickness of the spacer 50 as a whole.
  • a groove 51a is formed at the center, and a large number of locking teeth 51b are formed at a predetermined pitch along the inclined surface at the bottom.
  • a plurality of elongated holes 51c for allowing the filler 30 to pass therethrough are formed between the groove 51a and the side walls 51d and 51e on both sides, and a protrusion 51g is formed on the front side of the insertion.
  • the second wedge-shaped member 52 of the spacer 50 has an inclined surface inclined at the same angle as the inclination angle of the first wedge-shaped member 51, and a convex portion 52a fitted to the groove 51a, followed by an elastically deformable piece. 52g is formed.
  • a plurality (for example, two) of locking teeth 52b are formed on the lower surface of the elastic deformation piece 52g at an integer multiple of the pitch of the locking teeth 51b.
  • Each of the locking teeth 51b and 52b has a sawtooth shape having an inclined surface and a vertical surface, and is a tooth surface that can move only in one direction when the vertical surfaces are engaged.
  • an elongated hole 52c that is aligned with the elongated hole 51c of the first wedge-shaped member 51 is formed between the convex portion 52a and the side walls 52d and 52e on both sides.
  • the first wedge-shaped member 51 is inclined at a predetermined angle (about 10 °) so that the back side in the insertion direction is higher, and the second wedge-shaped member 52 is the same as the inclination angle of the first wedge-shaped member 51. Since the reverse wedge shape is inclined at an angle, when the convex portions 52a of the second wedge-shaped member 52 are fitted and overlapped with the grooves 51a of the first wedge-shaped members inclined at the same angle, FIG. As shown in FIG. 5, the locking teeth 51b and 52b are engaged with each other, and the lower surface 51f of the first wedge-shaped member 51 and the upper surface 52f of the second wedge-shaped member are parallel to each other.
  • the second wedge-shaped member 52 when the second wedge-shaped member 52 is pushed in the A direction, the locking teeth 51b and 52b move in the A direction with the inclined surfaces engaged, but the vertical surfaces engage in the opposite direction. Movement is prevented. Accordingly, by pushing the second wedge-shaped member 52 in the A direction, the thickness H of the entire spacer 50 is stepped at a small pitch corresponding to the inclination angle of the first and second wedge-shaped members 51, 52. Can be increased. Further, since the elastic deformation piece 52g is elastically deformed, when the elastic deformation piece 52g is lifted, the engagement between the locking teeth 51b and 52b is released. Therefore, the second wedge-shaped member 52 is moved in the direction opposite to the A direction, and the spacer 50 The thickness of can be reduced. As shown in FIG. 2, the first wedge-shaped member 51 is attached to the segment using the spacer holding member 60 described below before assembling the tube unit 10 or after assembling the tube unit 10. Keep it.
  • the spacer holding member 60 that holds the first wedge-shaped member 51 of the spacer 50 has flat surfaces 60a and 60b in the tube length direction (front-rear direction), as shown in FIGS. 8, 9a, and 9b.
  • a groove 60c having a width t1 is formed in the central portion over the entire length in the circumferential direction (left-right direction).
  • the width t1 of the groove 60c is set to the same value as the thickness of each of the side plates 102 and 103 and the inner plates 106 and 107 of the segment 1.
  • the spacer holding member 60 can be fixed to the inner plate 107 by, for example, pressing the inner plate 107 into the groove 60 c of the spacer holding member 60.
  • grooves 60d and 60e having a width t2 are formed at both ends of the spacer holding member 60 in the left-right direction.
  • the width t2 of the grooves 60d, 60e is set to the same value as the wall thickness of the side walls 51d, 51e of the first wedge-shaped member 51, and the distance t3 between the outer surfaces of the grooves 60d, 60e of the spacer holding member 60 is It is set equal to the lateral width of the first and second wedge-shaped members 51 and 52.
  • the spacer 50 and the spacer holding member 60 described above are used from the upper part to the center part of the rehabilitation pipe 40.
  • the lower part of the rehabilitation pipe 40 particularly the bottom part or the vicinity of the bottom part, is shown in FIGS. 10a and 10b.
  • a spacer 70 and a spacer holding member 80 as shown in FIGS. 12a and 12b are used.
  • the spacer 70 is configured by vertically stacking a first wedge-shaped member 71 whose upper surface is shown in FIG. 10a and a second wedge-shaped member 72 whose lower surface is shown in FIG. 10b.
  • a groove 71a is formed at the center
  • a large number of locking teeth 71b are formed at the bottom of the first wedge-shaped member 71 at a predetermined pitch on an inclined surface inclined at a predetermined angle.
  • a plurality of long holes 71c for allowing the filler 30 to pass therethrough are formed between the groove 71a and the side walls 71d and 71e on both sides, and abuts the side plate 102 of the segment 1 on the front side in the insertion direction (tube length direction).
  • a protrusion 71g is formed to limit the movement of the first wedge-shaped member 71 in the insertion direction. Further, on the outer wall surfaces of the side walls 71d and 71e, convex portions 71h and 71i projecting in the circumferential direction (left-right direction) are formed over the entire length direction (tube length direction).
  • the second wedge-shaped member 72 of the spacer 70 is provided with a convex portion 72a that fits into the groove 71a of the first wedge-shaped member 71, and a locking tooth 72b is formed on the inclined surface of the convex portion 72a. It is formed at a pitch that is an integral multiple of the pitch of the locking teeth 71b of the wedge-shaped member 71.
  • Each of the locking teeth 71b and 72b has a sawtooth shape having an inclined surface and a vertical surface, and is a tooth surface that can move only in one direction when the vertical surfaces are engaged.
  • a plurality of elongated holes 72c for allowing the filler 30 to pass therethrough are formed between the convex portion 72a and the side walls 72d and 72e on both sides.
  • the first wedge-shaped member 71 is inclined at a predetermined angle (about 2 to 5 °) so that the back side in the insertion direction is higher, and the second wedge-shaped member 72 is inclined with respect to the first wedge-shaped member 71.
  • the first and second wedge shapes are formed by fitting the groove 71a of the first wedge-shaped member 71 with the convex portion 72a of the second wedge-shaped member 72.
  • the grooves 71a inclined at the same angle and the locking teeth 71b and 72b formed on the convex portion 72a engage with each other, and the first wedge-shaped member
  • the lower surface 71f of 71 and the upper surface 72f of the 2nd wedge-shaped member 72 become parallel.
  • the width of the spacer 70 along the circumferential direction of the first and second wedge-shaped members 71 and 72 is the same as the width t3 of the first and second wedge-shaped members 51 and 52 of the spacer 50, respectively. ing.
  • the first wedge-shaped member 71 Since the spacer 70 is actually disposed at the lower part of the rehabilitation pipe, for example, when the spacer 70 is disposed at the bottom, the first wedge-shaped member 71 has a second shape as illustrated in FIGS.
  • the first wedge-shaped member 71 is shown below the second wedge-shaped member 72 in FIG. 11 in order to be arranged on the upper side of the wedge-shaped member 72 but for comparison with the spacer 50.
  • a spacer holding member 80 for holding a first wedge-shaped member 71 which will be described later, is also shown in FIGS. 12a, 12b, and 13 to 15 upside down with respect to the actually disposed posture. .
  • the second wedge-shaped member 72 when the second wedge-shaped member 72 is pushed in the A direction, the locking teeth 71b and 72b engage in the inclined surfaces and move in the A direction, but the vertical surfaces engage in the opposite direction. Movement is prevented. Accordingly, by pushing the second wedge-shaped member 72 in the A direction, the thickness h of the entire spacer 70 is stepped at a small pitch corresponding to the inclination angle of the first and second wedge-shaped members 71, 72. Can be increased.
  • the first wedge-shaped member 71 is divided into segments using the spacer holding member 80 before the tube unit 10 is assembled or after the tube unit 10 is assembled, similarly to the first wedge-shaped member 51 of the spacer 50. Keep it attached.
  • the spacer holding member 80 for holding the first wedge-shaped member 71 of the spacer 70 has flat surfaces 80a and 80b in the tube length direction (front-rear direction) as shown in FIGS.
  • a groove 80c having a width t1 is formed over the entire length in the circumferential direction (left-right direction).
  • the width t1 of the groove 80c is set to the same value as the thickness of each of the side plates 102 and 103 and the inner plates 106 and 107 of the segment 1, similarly to the groove 60c of the spacer holding member 60.
  • the spacer holding member 80 can be fixed to the inner plate 107 by, for example, pressing the inner plate 107 into the groove 80 c of the spacer holding member 80.
  • outer walls 80f and 80g are formed on both sides in the circumferential direction (left and right direction) of the spacer holding member 80, and inner walls 80h and 80i are provided on the inner side thereof, and between the outer walls and the inner walls, the spacer 70 Guide grooves 80j and 80k are formed which are fitted with the side walls 71d and 71e of the first wedge-shaped member 71 and slide the first wedge-shaped member 71 in the insertion direction.
  • protrusions 80d and 80e are formed on the outer groove surfaces of the guide grooves 80j and 80k (inner surfaces of the outer walls 80f and 80g), and the right side guide groove surface of the guide groove 80j is formed by the bottom surface 80m and the protrusion 80d of the guide groove 80j.
  • a concave portion 80p that fits with the convex portion 71h of the first wedge-shaped member 71.
  • a concave portion 80q that fits with the convex portion 71i of the first wedge-shaped member 71 is formed on the left side guide groove surface of the guide groove 80k by the bottom surface 80n of the guide groove 80k and the protrusion 80e.
  • the circumferential width w1 of the guide grooves 80j and 80k is the wall thickness w3 of the side walls 71d and 71e of the first wedge-shaped member 71 of the spacer 70 and the protrusions formed on the side walls 71d and 71e. It is slightly larger than the value (w2 + w3) obtained by adding the protrusion amounts w2 of the portions 71h and 71i. With such setting, the side walls 71d and 71e of the first wedge-shaped member 71 are fitted into the guide grooves 80j and 80k of the spacer holding member 80, and the first wedge-shaped member 71 is moved along the guide grooves 80j and 80k. Can slide back and forth in the tube length direction.
  • the first wedge-shaped member 71 is fitted to the holding member 80 so that the convex portions 71h and 71i are fitted to the concave portions 80p and 80q of the spacer holding member 80.
  • the movement of the one wedge-shaped member 71 in the vertical direction that is, the direction Y perpendicular to the tube length direction X and the circumferential direction C in FIG. Therefore, even if the first wedge-shaped member 71 is held upside down in FIG. 15, the first wedge-shaped member 71 is prevented from falling downward by its own weight from the spacer holding member 80.
  • the length of the rehabilitated tube 40 in the tube length direction is about 0.6 m, for example, as shown in FIG. Insert between tubes 40.
  • the spacer is inserted into a plurality of positions so that a gap is generated over the entire circumference between the rehabilitated pipe and the existing pipe. Therefore, the spacer 50 is used from the upper part to the center part of the rehabilitation pipe 40, and the spacer 70 is used at the bottom part of the rehabilitation pipe 40 or the lower part near the bottom part.
  • the spacer holding member 60 or 80 is fixed to the inner plate 107 of the segment at the spacer insertion position, and the first wedge-shaped member of the spacer 50 is fixed there. 51 or the first wedge-shaped member 71 of the spacer 70 is held.
  • the first spacer is inserted into the bottom of the rehabilitation pipe.
  • the first wedge-shaped member 71 of the spacer 70 inserted into the bottom portion of the rehabilitation pipe is projected to the outside from the segment 1 of the rehabilitation pipe 40 into which the spacer is inserted, as shown in the uppermost part of FIG. It is held by the holding member 80.
  • the rehabilitating tube 40 is already installed so that the first wedge-shaped member 71 comes to the bottom of the rehabilitating tube 40 with the first wedge-shaped member 71 protruding from the segment 1 as a mark. It becomes easy to install in the tube 21.
  • the first wedge-shaped member 71 can be slid in the tube length direction, as shown in the lowermost stage of FIG. Since it can be moved until it finally comes into contact with the side plate 102 of the segment 1, the inserted first wedge-shaped member 71 does not collide with the next connected segment.
  • the convex portion 71 h on the side wall of the first wedge-shaped member 71 moves in the direction Y (vertical direction in the figure) perpendicular to the tube length direction X and the circumferential direction C by the concave / convex fitting of the recesses 80p and 80q of the guide groove of 71i and the spacer holding member 80. Therefore, the first wedge-shaped member is prevented from falling from the segment 1 (see the cross-sectional views in the first phantom line in FIGS. 15 and 16).
  • the first wedge-shaped member 71 is formed by aligning the inclined surface of the second wedge-shaped member 72 with the inclined surface of the first wedge-shaped member 71. Is pushed into the gap between the existing pipe 21 using a bar, a rubber hammer or the like, and the second wedge-shaped member 72 is replaced with the first and second wedge-shaped members 71, as shown in the third row of FIG. Slide in the direction of arrow A until the thickness of the entire spacer 70 overlaid with 72 becomes the desired thickness h1.
  • the first wedge-shaped member 71 is simultaneously moved in the B direction and the second wedge-shaped member 72 is moved in the A direction using a bar, a rubber hammer, or the like. Let This movement is performed until the projection 71g of the first wedge-shaped member 71 comes into contact with a recess 102d (not shown in FIG. 1) formed in the side plate 102 of the segment 1. Since the projection 71g contacts the recess 102d formed on the side plate 102 of the segment 1, the first wedge-shaped member 71 is restricted from moving further in the tube length direction.
  • the length L in the tube length direction of the first and second wedge-shaped members 71 and 72 is set longer than the length D of the segment 1 in the tube length direction. Therefore, since the spacer 70 extends in the tube length direction to the entire bottom of the segment to support the segment, the rehabilitation tube can be prevented from being deformed.
  • the spacer 70 is inserted into the bottom of the rehabilitating tube 40, as shown in FIG. 5, the spacer 70 is also inserted in the vicinity of the bottom of the rehabilitating tube 40 in the same manner as that inserted into the bottom. insert. In that case, since the gap with the existing pipe 21 becomes larger as it goes upward, the second wedge-shaped member 72 is moved further inside than shown in the lowermost stage of FIG.
  • the spacer 50 is inserted into the gap between the rehabilitation pipe 40 and the existing pipe 21 at a circumferential interval from the vicinity of the center of the rehabilitation pipe 40 to the upper part thereof. Adjust the thickness.
  • the spacer 50 inserted in the upper part of the rehabilitation pipe is less likely to fall even if the second wedge-shaped member 52 is overlapped with the first wedge-shaped member 51, the first and second wedge-shaped members
  • the first wedge-shaped member 51 is held on the spacer holding member 60 by superimposing 51 and 52.
  • FIG. 17 shows a spacer 50 inserted at the top of the rehabilitation tube, along with a spacer 70 inserted at the bottom.
  • the second wedge-shaped member 52 of the spacer 50 is provided with an elastic deformation piece 52g, by lifting it, the engagement of the locking teeth is disengaged and the second wedge-shaped member 52 is opposite to the insertion direction.
  • the thickness of the spacer 50 can be decreased by moving in the direction. Therefore, by increasing or decreasing the thickness of the spacer 50, a plurality of spacers are arranged at predetermined intervals with a thickness corresponding to the gap between the rehabilitated pipe and the existing pipe between the rehabilitated pipe and the existing pipe. be able to.
  • the rehabilitation tube 40 When the rehabilitation tube 40 is assembled to a desired length (for example, about 5 m), an injection hole 41a is drilled in the segment 1 at one end of the rehabilitation tube 40 as shown in FIG. Then, the filler 30 is injected into the gap between the rehabilitation pipe 40 and the existing pipe 21 using the injection hose 41. Furthermore, when extending the rehabilitation pipe 40, as described above, each time the rehabilitation pipe 40 is assembled by about 0.6 m, the spacers 50 and 70 are inserted between the existing pipe 21 and the rehabilitation pipe 40 and about 5 m is inserted. Once assembled, the process of injecting filler 30 is repeated.
  • a desired length for example, about 5 m
  • the filler 30 includes insertion holes 102a, 103a, 106a formed in the side plates 102, 103 and the inner plates 106, 107, a notch 107a, and a notch 102c formed in the upper edges of the side plates 102, 103 and the inner plate 106, It flows also through 103 c and 106 b, and also flows into the long holes 51 c and 52 c formed in the spacer 50 and the long holes 71 c and 72 c formed in the spacer 70.
  • the filler 30 can meanderly flow over the top of the segment, making the injection of filler 30 uniform.
  • a solid composite pipe composed of the existing pipe 21, the filler 30, and the rehabilitated pipe 40 is constructed.
  • a plurality of spacers are arranged at a thickness corresponding to the gap between the rehabilitated pipe and the existing pipe at a predetermined interval over the entire circumference between the rehabilitated pipe and the existing pipe so that the rehabilitated pipe does not deform. Is done. Therefore, the rehabilitation pipe is firmly held by the spacer on the entire circumference, and the deformation of the rehabilitation pipe by the injected filler is prevented by the spacer arranged at the corresponding place.
  • the supporter since the supporter has a function of preventing the rehabilitation pipe from being deformed by the spacer, it is not necessary to assemble the supporter in the rehabilitation pipe, and the pipe rehabilitation work can be performed efficiently.
  • the arrangement position of the spacers, the number of spacers to be used, and the types thereof are not limited to the above-described embodiments. Further, the number of spacers can be increased or decreased, and the spacers can be arranged at equal intervals in the circumferential direction, or can be arranged by changing the density.
  • the convex portions 71h and 71i are provided on the outer wall surfaces of the side walls 71d and 71e of the first wedge-shaped member 71 of the spacer 70, and the surfaces of the guide grooves 80j and 80k of the spacer holding member 80 opposed thereto.
  • the concave portions 80p and 80q are provided in the concave and convex portions, and as shown in FIG. 18A, the concave portions 71r and 71s are provided on the outer wall surfaces of the side walls 71d and 71e, and the convex grooves 80j and 80k are opposed to the convex surfaces.
  • the portions 80r and 80s may be provided so that the concave and convex portions are fitted.
  • convex portions 71u and 71v are provided on the inner wall surfaces of the side walls 71d and 71e, and concave portions 80u and 80v are provided on the surfaces of the guide grooves 80j and 80k opposite to the convex portions 71u and 71v. May be.
  • the concave portion may be provided on the inner wall surface, and the convex portion may be provided on the guide groove surface facing the concave portion.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Sewage (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

L'invention concerne plusieurs entretoises (50, 70), dans lesquelles des premiers et seconds éléments cunéiformes sont superposés, étant disposées autour de toute la circonférence entre un tuyau de rénovation (40) et un tuyau existant (21) ayant une épaisseur correspondant à un espace entre le tuyau de rénovation et le tuyau existant. Les premiers éléments cunéiformes des entretoises (70) se trouvant au fond du tuyau de rénovation ou au voisinage du fond du tuyau de rénovation sont maintenus par un élément de maintien fixé à un segment (1) du tuyau de rénovation, de manière à pouvoir coulisser dans le sens de la longueur du tuyau. Les premiers éléments cunéiformes sont maintenus par l'élément de maintien de telle sorte que le déplacement dans une direction orthogonale par rapport au sens de la longueur et à la direction circonférentielle du tuyau est limité, empêchant ainsi les premiers éléments cunéiformes de tomber du segment sous leur propre poids.
PCT/JP2019/002039 2018-03-05 2019-01-23 Entretoise pour le réglage de position d'un tuyau de rénovation, et procédé de rénovation de tuyau utilisant ladite entretoise WO2019171801A1 (fr)

Priority Applications (2)

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JP2020504839A JP7260185B2 (ja) 2018-03-05 2019-01-23 更生管の位置調整用スペーサー及びこれを用いた管更生工法
KR1020207025889A KR102683480B1 (ko) 2018-03-05 2019-01-23 갱생관의 위치 조정용 스페이서 및 이것을 사용한 관 갱생 공법

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Citations (4)

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WO2000049322A1 (fr) * 1999-02-17 2000-08-24 Thomas Gianfrancisco Procede et materiau pour la reparation de conduits et analogues
JP2016176571A (ja) * 2015-03-20 2016-10-06 株式会社湘南合成樹脂製作所 更生管の位置調整用スペーサ及びこれを用いた位置調整方法
JP2017025976A (ja) * 2015-07-17 2017-02-02 株式会社湘南合成樹脂製作所 管更生工法
JP2018109433A (ja) * 2017-01-05 2018-07-12 株式会社湘南合成樹脂製作所 管更生工法

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JP2898195B2 (ja) 1994-04-04 1999-05-31 積水化学工業株式会社 鞘管に対する内挿管の固定方法
JP4392275B2 (ja) 2004-03-19 2009-12-24 株式会社湘南合成樹脂製作所 更生管の位置調整用スペーサ及びこれを用いた位置調整方法
JP2015024561A (ja) 2013-07-26 2015-02-05 株式会社湘南合成樹脂製作所 更生管の支保工装置および支保工工法
KR101360874B1 (ko) * 2013-09-27 2014-02-11 김순호 바닥과 플로어링층 간의 이격거리를 조절하는 장선용 쐐기
KR101824645B1 (ko) * 2016-11-04 2018-02-01 (주)지맥스래피드 지중관 보수 장치 및 지중관 보수 방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000049322A1 (fr) * 1999-02-17 2000-08-24 Thomas Gianfrancisco Procede et materiau pour la reparation de conduits et analogues
JP2016176571A (ja) * 2015-03-20 2016-10-06 株式会社湘南合成樹脂製作所 更生管の位置調整用スペーサ及びこれを用いた位置調整方法
JP2017025976A (ja) * 2015-07-17 2017-02-02 株式会社湘南合成樹脂製作所 管更生工法
JP2018109433A (ja) * 2017-01-05 2018-07-12 株式会社湘南合成樹脂製作所 管更生工法

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TW201942509A (zh) 2019-11-01
JP7260185B2 (ja) 2023-04-18
JPWO2019171801A1 (ja) 2021-03-04
KR20200128034A (ko) 2020-11-11

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