KR20090011767A - Segment member for rehabilitating pipe and rehabilitating pipe using the same - Google Patents

Segment member for rehabilitating pipe and rehabilitating pipe using the same Download PDF

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Publication number
KR20090011767A
KR20090011767A KR1020070075684A KR20070075684A KR20090011767A KR 20090011767 A KR20090011767 A KR 20090011767A KR 1020070075684 A KR1020070075684 A KR 1020070075684A KR 20070075684 A KR20070075684 A KR 20070075684A KR 20090011767 A KR20090011767 A KR 20090011767A
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KR
South Korea
Prior art keywords
pipe
segment member
plate
rehabilitation
segment
Prior art date
Application number
KR1020070075684A
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Korean (ko)
Inventor
박병권
Original Assignee
(주)씨스이엔지
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Application filed by (주)씨스이엔지 filed Critical (주)씨스이엔지
Priority to KR1020070075684A priority Critical patent/KR20090011767A/en
Publication of KR20090011767A publication Critical patent/KR20090011767A/en

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    • 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
    • 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
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/163—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a ring, a band or a sleeve being pressed against the inner surface of the pipe
    • 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

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

Abstract

A segment member for a rehabilitation pipe and a rehabilitation pipe using the segment member are provided to make a rehabilitation pipe function as a simple repair pipe and a self-supporting pipe by covering a rehabilitation pipe with a rehabilitation plate whose outer circumference facing the existing pipe is made of a strong resin sheet. A segment member(1) for a rehabilitation pipe is formed by installing side plates(102,103) on two edges of an internal plate in the circumferential direction of a rehabilitation pipe, installing single plates(104,105) on two edges of an internal plate in the widthwise direction of the rehabilitation pipe, and covering the upper part with a rehabilitation plate which is composed of a resin sheet impregnated with thermosetting resins.

Description

Segment member for rehabilitation pipe and rehabilitation pipe using the segment member {SEGMENT MEMBER FOR REHABILITATING PIPE AND REHABILITATING PIPE USING THE SAME}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a segment member for a rehabilitation pipe that is placed in an existing pipe to rebuild an existing pipe such as a sewage pipe, and a rehabilitation pipe that is assembled using the segment member.

In order to rebuild existing pipes, such as sewage pipes, segment members are sequentially connected in the circumferential direction and the pipe length direction of the existing pipes and assembled as rehabilitation pipes, and grout material is disposed between the outer periphery of the rehabilitation pipes and the inner wall surface of the existing pipes. The rehabilitation method of an existing pipe which fills and hardens a filler and builds a composite pipe is known by following patent document 1 etc.

The segment member, which is a unit member of the rehabilitation pipe, is formed as a block integrally formed of transparent plastic partitioned into an inner plate, a side plate, and a end plate, and a reinforcement plate and ribs are appropriately provided. Thus, the strength of the segment member is increased.

[Patent Document 1] Japanese Unexamined Patent Publication No. 2003-214098

In the structure of the conventional segment member, the surface facing the existing pipe of each segment member when it is assembled as a rehabilitation pipe is exposed, and even if a filler such as grout material is filled between the existing pipe and the rehabilitation pipe, the existing pipe is damaged. In this severe case, impact may be directly applied to the filler directly from the outside, and since the strength of the filler is weak, damage to the rehabilitation pipe is also severe.

An object of the present invention is to solve such a problem and to provide a segment member capable of improving the strength of a rehabilitation tube formed by assembling a segment member and a rehabilitation tube composed of the segment member.

The present invention is installed by installing the side plates on each side edge of the inner plate in the circumferential direction of the reinforcement pipe, respectively, by installing a single plate on each side edge of the inner plate along the width direction of the reinforcement pipe, covering the upper part with the reinforcement plate A segment member for rehabilitation pipe is formed.

In addition, the present invention is installed by installing the side plates on each side edge of the inner plate in the circumferential direction of the reinforcement pipe, respectively, by installing end plates on each side edge of the inner plate along the width direction of the reinforcement pipe, the upper part of the rehabilitation plate The reinforcement pipe which connects the segment member formed by coating with the circumferential direction and the pipe length direction, and injects a filler into each segment member is characterized by the above-mentioned.

In such a configuration, the rehabilitation pipe is covered with a rehabilitation plate made of a rigid resin sheet whose outer circumferential surface facing the existing pipe is not only functioning as a simple maintenance pipe in view of being strong against external shocks and also having high corrosion resistance. It also functions as a sewer pipe, and can be used as a sewage pipe by itself.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to attached drawing. In addition, although the Example in the rehabilitation pipe comprised as a circular pipe is described here, it cannot be overemphasized that this invention can be applied also to rehabilitation pipes of shapes other than a circular shape, such as a rectangular cross section orthogonal to a pipe length direction. Even if the cross-sectional shape is not a closed shape as a pipe, but a shape such as a horseshoe shape, a semicircle shape, or a U shape, one side is open, the present invention can be applied as a pipe.

(Example)

The rehabilitation pipe of the present invention is assembled by connecting the segment members in the circumferential direction and the pipe length direction. The outer diameter of the rehabilitation pipe is a predetermined amount smaller than the inner diameter of the existing pipe. As shown in FIG. 1, the segment member 1 serving as the unit assembly member of the rehabilitation pipe has an inner surface plate 101 and side plates 102 and 103. And the end plates 104 and 105, and the two reinforcement plates 106 and 107, respectively, are formed as blocks integrally molded from transparent, translucent or opaque plastic. Vinyl chloride, ABS, Durastar polymer (trade name), etc. are used as a transparent plastic, PVC, polyethylene, etc. are used as a translucent plastic, PVC, polyester, ABS, polyethylene, polypropylene, etc. are used as an opaque plastic.

The inner plate 101 is formed as a plate having a predetermined width that is curved in an arc shape by a predetermined angle dividing a plurality of circumferences into, for example, 72 degrees into five equal parts, and the lower surface thereof becomes the inner circumferential surface of the reinforcement tube The circumferential direction is the circumferential direction of the regeneration pipe, and the width direction is the pipe length direction of the rehabilitation pipe. In each of the circumferential ends of the inner surface plate 101, a plurality of rectangular openings 101a are formed in the circumferential direction to connect the segment members 1 in the circumferential direction from the inside.

The side plates 102 and 103 are formed along their respective lengths along each of the two edges along the circumferential direction of the inner plate 101, and are provided at a predetermined height with respect to the inner plate 101. In each of the side plates 102 and 103, a plurality of through holes 102a and 103a for inserting the connecting members described later in the pipe length direction are formed at predetermined intervals in the circumferential direction (14 in this case).

The end plates 104 and 105 are formed over their entire length along each of both edges along the width direction of the inner plate at both ends of the inner plate 101 in the circumferential direction, and each side plate with respect to the inner plate 101. It is installed at the same height. The end plates 104 and 105 are provided with a plurality of through holes 104a and 105a for inserting through the bolts connecting the segment members 1 in the circumferential direction (see also Fig. 4).

The reinforcement boards 106 and 107 reinforce the mechanical strength of the whole segment member 1, and are installed to the predetermined height toward the outer side of the circular arc of the inner surface board 101 from the inside of the side plates 102 and 103. As shown in FIG. In the reinforcing plates 106 and 107, a plurality of through holes 106a and notches 107a for penetrating the connecting member in the tube length direction correspond to the through holes 102a and 103a of the side plates 102 and 103, respectively. It is formed at the position. Further, on both inner surfaces of the side plates 102 and 103 and on both side surfaces of the reinforcing plates 106 and 107, there are a plurality of small right-angled triangular convex plates 103b, 106b and 107b sticked out laterally to prevent respective deformation. It is formed in the rib structure to increase the strength of the segment member (1).

When the cross-sectional shape of the existing pipe to be repaired is the original pipe, the segment member 1 cuts the outer circle having the curvature according to the curvature of the existing pipe and the inner circle having the concentric circle concentrically and perpendicularly to the axis. Since the shape is equally divided in the circumferential direction, the upright direction of the side plates 102 and 103 becomes a direction orthogonal to the axial center of the circular pipe, and the upright direction of the end plates 104 and 105 is the axial center along the diameter. Will be in the direction facing. Therefore, when the reinforcement pipes are assembled by connecting the segment members 1 in the circumferential direction and the pipe length direction, the side plates and the end plates of each segment are matched with each other to be in close contact with each other without a gap. Can be renewed from the inside.

The number of reinforcement plates or the number of convex plates can be increased or decreased depending on the required strength of the segment member, and if there is strength, some or all of them can be omitted. In addition, since the segment member functions as an arbitrary rehabilitation member or a repair member, the segment member is not limited to an arc shape or a fan shape as shown in FIG. Alternatively, the angle can be rounded to form a bent shape. In either shape, there is no change in the basic configuration described above. In addition, the inner plate 101, the side plates 102 and 103, the end plates 104 and 105, and the reinforcement plates 106 and 107 are integrally formed by injection molding or the like. May be integrated by adhesion or welding.

In the segment member 1, since the upper part of the segment member is exposed, even if the filler is filled in each segment member when assembled as a rehabilitation tube, the existing tube is severely damaged or the existing tube is a large diameter tube. The impact on the filler directly from the outside will damage the regeneration tube. Therefore, in the present invention, as shown in Fig. 2, the resin sheet 20 is attached to the entire upper portion of the segment member as a rehabilitation plate and integrated with the segment member.

The resin sheet 20 is composed of a thermosetting reinforcement plastic composed of a reinforcing fiber impregnated with a thermosetting resin and a curing agent, and glass fibers, carbon fibers, metal fibers or organic fibers, and natural fibers are used as the reinforcing fibers. Moreover, the hardening | curing agent has the effect | action which makes a thermosetting resin react with a radical, For example, organic peroxides, such as a benzoyl peroxide and a lauroyl peroxide, are used, As a thermosetting resin, unsaturated polyester resin, an epoxy (meth) acrylate resin, etc. are used. This is used.

As shown in FIG. 2, when the resin sheet 20 is covered with the upper portion of the segment member 1 to be in close contact with each other, and then heat treated, the resin sheet 20 is cured by the curing of the thermosetting resin. ) Is integrated with the segment member in a shape that seals the segment member 1. Since the resin sheet has extremely high strength and high corrosion resistance, the strength and corrosion resistance of the segment member can be significantly increased.

Assembly of the rehabilitation pipe using the segment member coated with such a resin sheet is performed as follows.

First, the segment member 1 coated with the resin sheet is carried in to the existing pipe, and as shown in FIG. 3, it connects sequentially in the circumferential direction. As shown in detail in FIG. 4, this connection is made by adhering the end plates 104 and 105 of each segment member 1 to the bolt 6 from the opening 101a of the inner surface plate 101. This is done by penetrating through 105a and screwing the nut 7 to tighten both end plates 104 and 105. When the connection is finished, each opening 101a is sealed by a cover (not shown) or the like.

When a predetermined number of segment members are connected in the circumferential direction until the segment member becomes a ring ring or according to the shape of the existing pipe, as shown in FIG. 5, for each segment member 1 in the connected circumferential direction Connect the other segment member (1) in the pipe length direction to assemble the rehabilitation pipe.

As shown in Fig. 5, the connection in the tube length direction has one end with a threaded portion 11a and a nut end 11c having a screw hole 11d screwed with the threaded portion 11a. Is performed using a connecting member 11 made of a metal integrally bonded to the rod 11b.

In FIG. 5, the connecting member 11 on the right side is already engaged with another connecting member (not shown) and is caught by the segment member 1 and fixed to the segment member 1. In order to connect the other segment member 1 'with this segment member 1 in this state, both segment members 1 and 1' are first positioned to protrude from the side plate 102 of the segment member 1; The nut part 11c is fitted into the through-hole 103a of the side plate 103 of the segment member 1 '. Subsequently, the connecting member 11 'is inserted through the through-hole 102a of the side plate 102 of the segment member 1', and the threaded portion 11a 'is passed through the nut portion 11c of the connecting member 11. Screw into the screw hole (11d). When the nut part 11c 'of the connecting member 11' is screwed into contact with the reinforcing plate 106 of the segment member 1 ', the connecting member 11' becomes the segment member 1 '. And takes At this time, since the nut portion 11c 'tightly tightens the reinforcing plate 106 of the segment member 1', the engagement of the segment member 1 'and the connecting member 11' is securely performed. ') Is fixed to the segment member 1' and both segment members 1 and 1 'are connected. Since the connection of each segment member is performed using four connection members per segment, both segment members 1 and 1 'are firmly connected in the pipe length direction.

In addition, in Fig. 5, when the segment member 1 is the first segment member in the tube length direction, the connecting member as shown in the figure cannot be used, so that the nut part 11c is fixed to the segment member 1 in some form. Use a fixed member as a connecting member.

In this way, each time the segment members are connected in the tube length direction, or after connecting a predetermined number or after connecting all the segment members, filler is injected into each segment member in order to increase strength. This injection is performed through the through-hole because the side plate is provided with a through-hole for the connecting member. For this injection, injection holes may be formed in other positions of the segment member. Since the mutual segment members communicate with each other through the through-holes for the connecting members, the fillers can be uniformly filled in the respective segment members.

As a filler, for example, a resin mortar or cement obtained by mixing a radically polymerizable thermosetting resin such as unsaturated polyester resin with an inorganic aggregate such as aluminum hydroxide, calcium carbonate silica, glass powder, silica, or an organic aggregate such as polymer beads. Mortar and the like are used.

As mentioned above, although the segment member was sequentially connected only to one side of the pipe length direction of an existing pipe (one side connection), you may connect it to both sides of a pipe length direction sequentially (both sides connection). In this case, since the segment member can be assembled from both sides, the laying time can be shortened.

As described above, as shown in FIG. 6, the segment members 1 are sequentially connected in the circumferential direction and the pipe length direction in the existing pipe 4 to be assembled as the rehabilitation pipe 3, thereby forming the rehabilitation pipe 3. Can be laid. When the laying is completed, the grout material is filled in the gap between the existing pipe 4 and each segment member 1, and cured to integrate with the existing pipe as a composite pipe. In addition, in FIG. 6, the connected segment member 1 is shown in simplified block shape, and the penetrating position of the connecting member 11 is shown by the dashed-dotted line. In addition, although each segment member is connected by aligning each end plate in the pipe length direction in FIG. 6, it can also connect by displacing (offset) the position of an end plate.

In addition, as shown in Fig. 7A, the resin sheet is brought into close contact with the segment member 1 by the method described above, and then cured, as shown in Figs. 7B and 7C. The recessed groove 1a may be formed in the segment member 1 in the tube length direction, and the heat-cured curved resin sheets 21 and 22 may be inserted along the recessed groove to be integrated.

Moreover, since the segment member after filler injection | pouring has strength, the reinforcement board and rib structure shown in FIG. 1 can be abbreviate | omitted, and it can also be set as simple box shape.

The rehabilitation pipe assembled in this way is covered with a strong resin sheet on the outer circumferential surface facing the existing pipe, so that it can function not only as a maintenance pipe but also as a self-supporting pipe, and can be used as a sewage pipe.

1 is a perspective view showing a schematic configuration of a segment member partially omitted.

2 is a perspective view showing a state in which a resin sheet is attached to a segment member.

3 is a perspective view showing a state in which the segment member to which the resin sheet is attached is assembled in the circumferential direction and the tube length direction.

4 is a longitudinal side view illustrating a state in which segment members are connected in a circumferential direction.

5 is a radial cross-sectional view showing a state in which segment members are connected in a pipe length direction by a connecting member.

6 is a partially broken perspective view illustrating a state in which a rehabilitation pipe is assembled by connecting segment members in an existing pipe.

Fig. 7A is a side view of the segment member in a state where the resin sheet is attached and fixed to the upper portion, and (B) and (C) are side views of the segment member in a state where the resin sheet is sandwiched and fixed.

(Explanation of symbols for the main parts of the drawing)

1, 1 ': segment member 3: rehabilitation tube

4: existing pipe 11, 11 ': connecting member

101: inner plate 102, 103: side plate

104, 105: single plate 106, 107: reinforcing plate

Claims (10)

The side plates are installed on both side edges of the inner plate along the circumferential direction of the reinforcement pipe, respectively, and the end plates are respectively installed on both side edges of the inner plate along the width direction of the reinforcement pipe, and the upper part is covered with the reinforcement plate. Reinforcement pipe segment member. The segment member according to claim 1, wherein the regeneration plate is made of a resin sheet impregnated with a thermosetting resin. The segment member according to claim 2, wherein the resin sheet is brought into close contact with the upper portion of the segment member and then cured to be fixed to the segment member. The segment member according to claim 2, wherein the cured resin sheet is coated and fixed to the segment member. The segment member according to any one of claims 1 to 4, wherein the inner plate, each side plate, and each end plate are integrally formed. The side plates are installed on both edges of the inner plate along the circumferential direction of the reinforcement pipe, respectively, and the end plates are installed on each side edge of the inner plate along the width direction of the reinforcement pipe, and the upper part is covered with the reinforcement plate. A reinforcement pipe characterized by connecting a segment member in a circumferential direction and a pipe length direction, and filling filler in each segment member. The regeneration pipe according to claim 6, wherein the regeneration plate is made of a resin sheet impregnated with a thermosetting resin. 8. The rehabilitation tube according to claim 7, wherein the resin sheet is brought into close contact with the upper portion of the segment member and then cured to be fixed to the segment member. 8. The rehabilitation pipe according to claim 7, wherein the cured resin sheet is coated and fixed to the segment member. The rehabilitation pipe according to any one of claims 6 to 9, wherein the inner surface plate, each side plate, and each end plate are integrally formed.
KR1020070075684A 2007-07-27 2007-07-27 Segment member for rehabilitating pipe and rehabilitating pipe using the same KR20090011767A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100973770B1 (en) * 2010-05-27 2010-08-04 대지종건(주) Non-excavation type constructed tunnels and conduits using arc-shaped divided segments and its construccting methods thereof
KR20160066503A (en) * 2014-12-02 2016-06-10 가부시키가이샤 쇼난 고세이쥬시 세이사쿠쇼 Pipe rehabilitation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100973770B1 (en) * 2010-05-27 2010-08-04 대지종건(주) Non-excavation type constructed tunnels and conduits using arc-shaped divided segments and its construccting methods thereof
KR20160066503A (en) * 2014-12-02 2016-06-10 가부시키가이샤 쇼난 고세이쥬시 세이사쿠쇼 Pipe rehabilitation method

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