JP3883897B2 - Repair method for visible light curable resin coating on sewer pipes - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for repairing the inner surface of a sewer pipe by a coating method using a visible light curable resin.
[0002]
[Prior art]
Conventionally, repair of a sewer pipe by coating with a visible light curable resin is performed by installing a light source unit (visible light irradiation unit) having a translucent rubber sleeve that can be expanded by compressed air on the outer periphery, and the outer periphery of the rubber sleeve. With the repair sheet cylinder impregnated with photocurable resin in the part, insert it into the repair site through the working port of the sewer pipe, and supply compressed air into the rubber sleeve of the light source unit at the repair site to expand By pressing the repair sheet cylinder to the inner surface of the sewer pipe , the light source unit is turned on, and the photocurable resin impregnated in the repair sheet cylinder is cured, thereby removing the repair sheet cylinder from the sewer pipe. The light source unit is fixed to the inner surface and then the rubber sleeve is contracted, and then the light source unit is taken out from the working port of the sewer pipe .
[0003]
In such a conventional repair methods, repairing length per one time of definitive sewage pipe corresponds to the length of the substantially light source unit. Therefore, when repairing a long section of several tens of meters of sewer pipes, such as between adjacent manholes of sewer pipes for which repair demand is increasing recently, it is necessary to repeat the above operation many times. Therefore, there is a problem that the repair takes time and costs are high.
[0004]
In the conventional repair method, because it uses attached to the rubber sleeve as the light source unit repair sheet tube material can not be said a high mechanical strength, upon insertion into the sewer, rubbing on the inner surface of the sewer pipe, damage There is also the problem of doing.
[0005]
[Problems to be solved by the invention]
In view of the above problems recognized in the conventional repair method, the present invention can repair a considerably long section of a sewer pipe in a short time and repair photo impregnated resin impregnation when inserted into the sewer pipe. It is an object of the present invention to provide a repair method that does not cause damage to the sheet tube material.
[0006]
[Means for Solving the Problems]
In the repair method according to the present invention, in the vicinity of the first work port among the first and second work ports spaced from the repair section of the sewage pipe, the light source unit insertion pulling wire is protruded at both ends. tip of the closed state of the light-shielding tubular outer film and the light-transmitting cylindrical in the cylindrical repairing formed by interposing a sheet repair sheet tube material impregnated with a visible light curable resin between the film with inserting in In addition, a pulling wire for inserting a repair sheet cylinder member that extends between the vicinity of the first and second working ports through the repair section of the sewer pipe via the pulling wire for inserting the light source unit projecting from the tip portion. After connecting the rear end portion , the repaired tubular member is pulled from the first working port to the second working portion through the pulling operation of the pulling wire for inserting the repairing tubular member in the vicinity of the second working port. inserted to located repaired end sewer mouth side A sheet tube material inserting step for Osamu, by introducing compressed air from the rear end of the first working port side to repair sheet tube material in inserted into the sewer pipe, and expanding the repairing sheet tube material, sewers of a repair sheet tube material expansion stroke to contact the inner surface, the inner and connected to the power source and the compressed air source in the working opening neighborhood with connecting the light source unit retracting pull wire capable towing in the first work opening neighborhood The light source unit containing the light source and provided with a light- transmitting rubber sleeve outside is connected to the distal end portion of the inflated repair sheet cylinder through the pulling operation of the light source unit insertion pulling wire in the vicinity of the second working port. a light source unit inserting step of inserting up to introduce the compressed air in a rubber sleeve of the light source unit, through its expansion, after pressed against the inner surface of the sewer pipe opposite the repairing sheet tube material, the light source unit light Lit and a repair sheet tube material adhering step the initial curing the visible light curable resin impregnated in the repair sheet repair sheet tube material pressure contact with the inner surface of the sewer pipe, off of the light source of the light source unit And a plurality of subsequent repair sheet cylinder fixing steps performed by sandwiching the retracting operation of the light source unit by a predetermined distance by pulling operation of the pulling wire for retracting the light source unit in the vicinity of the first working port after the shrinkage of the rubber sleeve; The light source unit is moved from the inside of the sewer pipe to the vicinity of the first work port through the pulling operation of the pulling wire for retreating the light source unit in the vicinity of the first work port after the plurality of subsequent repair sheet cylinder fixing steps. A light source unit taking-out step to take out.
[0007]
In the repair method of the present invention, generally, after the light source unit is taken out , the light source unit insertion pulling wire that has already achieved the purpose of inserting the light source unit is used to protect the inner surface of the repair sheet as described later. In order to remove the inner film that does not have any problem even if it does not remain, after the light source unit take-out process , a light source unit insertion pulling wire is connected to the tip of the inner film to insert the light source unit near the first working port . An inner film removing step of peeling the inner film can be added through a pulling operation of the pulling wire.
[0008]
As a repair sheet impregnated with a photocurable resin that forms a repair sheet tube material, fiber sheets such as cloth and mat can be used (glass fiber sheets, carbon fiber sheets, aramid fiber sheets, etc.) As the film and the outer film, plastic films such as a polyethylene film can be used.
[0009]
As the visible light curable resin, a vinyl ester resin, an unsaturated polyester resin, or the like having curability by visible light (380 to 780 nm) or short-wavelength near infrared (780 to 1200 nm) can be used.
[0010]
As the light source unit, a light source unit in which a visible light source lamp such as a fluorescent lamp or a metal halide lamp is accommodated and a moving wheel is attached together with a rubber sleeve is used.
[0011]
Note that the sheet cylinder for repair in the present invention is, for example, in a state in which one end of a sheet cylinder formed by stacking a cylindrical inner film, a repair sheet, and an outer film inside and outside is closed from the other end of the sheet cylinder. A method in which a visible light curable resin is introduced between a film and a repair sheet or between an inner film and a repair sheet, and then the whole is pressed by a pressure roller to uniformly impregnate the repair sheet with the visible light curable resin. It can be formed by various methods.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, based on FIGS. 1-4, embodiment regarding the sewer pipe full length between the adjacent manholes of the repair method which concerns on this invention is described in order of a process.
[0013]
(1) Repair Sheet Cylinder Insertion Process As shown in FIG. 1, the repair sheet cylinder 11 inserted through the light source unit insertion pulling wire 13 is wound around the winding shaft 12 and out of the first manhole 27. In the closed state, the pulling wire 14 for inserting a repairing sheet cylinder member extending between the manholes 27 and 28 through the inside of the sewer pipe 26 (the extension in the drain pipe 26 of the pulling wire 14) is installed. For example, during a sewage pipe cleaning operation performed by a high-pressure washing car, which is usually performed before repairing, the pulling wire 13 is connected to the rear end of the pipe by using a washing nozzle unit that reciprocates in the pipe. The winch 15 around which the tip of the pulling wire 14 is wound is installed outside the second manhole 28 while the tip of the pulling wire 14 is connected to the rear of the pulling wire 14. 5 is pulled to the second manhole 28 side from the outside of the first manhole 27 to the second manhole 28 side, and its tip is the tip of the repair of the sewage pipe 26. The second manhole is inserted until it is positioned adjacent to the bottom of the second manhole. In the case where the post-repair sheet cylinder 11 is too long, the rear part is cut out outside the first manhole 27, while the pulling wire 14 is a connecting part of the tip part of the pulling wire 13, and the repairing sheet cylinder 11 And the winch 15 makes it possible to wind only the pulling wire 13 thereafter.
[0014]
(2) Repair sheet cylinder expansion process and light source unit insertion process Following the above, outside the first manhole 27, at the rear end portion of the repair sheet cylinder 11, as shown in FIG. An air pipe unit 24 with a connected rotary valve-shaped lid 25 (not shown in detail) is connected, and compressed air is introduced into the interior of the repair sheet cylinder 11 so that the repair sheet cylinder 11 is substantially sewage piped. And the light-transmitting rubber sleeve 18 connected to the air hose 20, the electric cable 21, the front end of the light source unit retracting pulling wire 22, and the trailing end of the pulling wire 13, The light source unit 16 with a moving wheel (not shown) is wound through the air pipe unit 24 with the rotary valve-shaped lid 25 opened by winding the pulling wire 13 through the winch 15 and the repair sheet. Inserted to the distal end portion of the timber 11.
[0015]
(3) First and subsequent repair sheet cylinder fixing step Next, as shown in FIG. 3, compressed air is supplied into the rubber sleeve 18 of the light source unit 16 through the air hose 20 with the rotary valve-shaped lid 25 closed. In this way, after the repair sheet cylinder 11 is pressed against the opposing portion of the sewer pipe 26, the fluorescent lamp 17 of the light source unit 16 is turned on by power feeding through the electric cable 21, and the repair sheet cylinder 11, the visible light curable resin impregnated in the repair sheet (not shown) is cured, and the front end portion of the repair sheet cylinder 11 is connected to the inner surface portion of the sewage pipe 26 via an outer film (not shown). It sticks to.
[0016]
Thereafter, the light source unit 16 is wound by a winding operation of the pulling wire 22 through a winch (not shown) installed outside the first manhole 27 after the fluorescent lamp 17 is extinguished and the rubber sleeve 18 is contracted. Retreat to the adjacent repair portion of the sewage pipe 26, and repeat the repair sheet cylinder fixing step to fix the repair sheet cylinder 11 to the bottom adjacent portion of the first manhole 27 of the sewage pipe 26. It adheres to the section part of one by one.
[0017]
(4) Light source unit removal step After the above-described repair sheet cylinder fixing step, the light source unit 16 is removed from the sewer pipe 26 by the winding operation of the pulling wire 22 via the winch outside the first manhole 27. Take out the manhole 27.
[0018]
(5) Inner film removal step After the light source unit 16 is taken out, an extra portion extending in the first manhole 27 of the repair sheet cylinder 11, for example, is cut off, while the repair sheet cylinder as shown in FIG. 11 is released and the pulling wire 13 is connected to the inner film 11a of the leading end, and then the pulling wire 13 is wound around the first manhole 27 by the winding operation of the pulling wire 13 to the sewer pipe 26. The inner film 11a is peeled off and removed from the fixed repair sheet cylinder 11.
[0019]
The repair method of the present invention can be carried out in various other forms, and is not limited to the above-described form.
[0020]
【The invention's effect】
As described above, according to the repair method of the present invention, the light source unit was introduced into the sewer, while retracting the sewer pipe by unit length, since to repair the corresponding long repair section portion, the conventional repair method Compared to the above, a long repair section can be repaired efficiently and at low cost.
[0021]
Further, in the repair method of the present invention, the repair sheet impregnated with the visible light curable resin that controls the repair action is in a state where the inside and outside are protected by the inner film and the outer film, so when inserting into the sewer pipe, The light source unit is not damaged and is not damaged by the light source unit when the light source unit is inserted or removed . Furthermore, the pulling wire for inserting the light source unit can be removed while being used for removing the inner film.
[Brief description of the drawings]
FIG. 1 is a schematic view showing a repair sheet cylinder material inserting step according to an embodiment of the present invention.
FIG. 2 is a schematic diagram showing a light source unit insertion step according to an embodiment of the present invention.
FIG. 3 is a schematic view showing a repairing cylinder member fixing process according to an embodiment of the present invention.
FIG. 4 is a schematic view showing an inner film removing step according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Repair sheet cylinder 11a Inner film 13 Light source unit insertion pulling wire 14 Repair sheet cylinder insertion pulling wire 15 Winch 16 Light source unit 17 Fluorescent lamp 18 Rubber sleeve 20 Air hose 21 Electric cable 22 Light source unit retraction pulling wire 26 Sewage pipe 27 First manhole 28 Second manhole

Claims (2)

The light source unit insertion pulling wire is inserted with both ends projecting in the vicinity of the first working port among the first and second working ports spaced from each other to the repair section of the sewer pipe, and the light-shielding tube Projecting from the distal end of the repaired tubular member of the repairing sheet cylinder member , sandwiching a tubular repair sheet impregnated with visible light curable resin between the outer film and the translucent tubular inner film After connecting the rear end portion of the pulling wire for inserting the tubular member for repairing sheet that extends between the vicinity of the first and second working ports through the repairing section portion of the sewer pipe through the pulling wire for inserting the light source unit, Through the pulling operation of the pulling wire for inserting the repair sheet cylinder material in the vicinity of the second work opening , the repair pipe end of the repair sheet tube material from the first work opening is the repair end of the second work port side sewer pipe. a repair sheet tube material inserting step of inserting until located parts To repair sheet tube material in inserted into the sewer pipe by introducing compressed air from the rear end of the first working port side, and expand the repair sheet tube material, repair sheet tube contacting the inner surface of the sewer pipe The material expansion stroke and the pulling wire for retracting the light source unit that can be pulled in the vicinity of the first working port are connected, and the power source and the compressed air source are connected in the vicinity of the working port, and the light source is accommodated in the interior, and the light is transmitted outside A light source unit insertion step of inserting the light source unit provided with the rubber sleeve to the distal end portion of the inflated repair sheet tubular member through the pulling operation of the light source unit insertion pulling wire in the vicinity of the second working port; introducing compressed air into the rubber sleeve of the light source unit, through its expansion, after pressed against the inner surface of the sewer pipe opposite the repairing sheet tube material, and turning on the light source of the light source unit, the inner surface of the sewer pipe The impregnation to repair sheet repair sheet tube material of the pressed state and repair sheet tube material adhering step the initial curing the visible light curable resin, the light source of the light source unit off and the rubber sleeve first after shrinkage A plurality of subsequent repair sheet cylinder fixing steps performed with a predetermined distance of the light source unit retracting operation by pulling the light source unit retracting pulling wire in the vicinity of the working port, and a plurality of subsequent repair sheet cylinders After the material fixing step, the sewage is composed of a light source unit take-out step of taking out the light source unit from the inside of the sewer pipe to the vicinity of the first work port through the pulling operation of the pulling wire for moving the light source unit in the vicinity of the first work port. Visible light curable resin-coated repair method for tubes . After the light source unit removal step, the inner film removal is performed by connecting the pulling wire for inserting the light source unit to the tip of the inner film and peeling the inner film through the pulling operation of the pulling wire for inserting the light source unit near the first working port. The repair method according to claim 1, wherein a process is added.

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