JP2016098835A - Repair method for existing pipe line and repair member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an existing deteriorated pipe passage to be repaired simply and appropriately within a short time.SOLUTION: A framework body 10 having reinforcing members 11 connected in an existing pipe passage 1 via prescribed intervals in a longitudinal direction is arranged in the existing pipe passage 1 along a longitudinal direction. As a liner member 20 installed at an inner surface side of the framework, a plurality of plate-like profiles 21 extending along the longitudinal direction of the existing pipe passage 1 are arranged at the inner surface side of the framework body 10 via the prescribed spacing. When cylindrical watertight sheets 22 are installed between the framework and the liner member, the inner surface side of the reinforcing member is provided with a fitting recess 13, the watertight sheets between the plate-like profiles are fitted into the fitting recesses by the fitting members 23 along the longitudinal direction of the existing pipe passage, the fitting members are abutted against the long sides of the plate-like profiles at both sides and then hardening filler material 2 is poured between the watertight sheets 22 and the existing pipe passage 1 and hardened.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a method for repairing an existing pipe line and a repair member. In particular, a skeleton is placed on the inner surface of an aging existing pipeline, and a liner member is attached to the inner periphery of the skeleton, and a curable filler is injected between the liner member and the existing pipeline.・ Characterized by repairing existing pipelines in a short time, allowing them to be easily repaired in a short time, and to be able to be repaired appropriately without leaking water from the repaired parts. It is.

  In repairing an aging existing pipeline, conventionally, as shown in Patent Document 1, a reinforcing bar having spring elasticity such as a piano wire is spirally wound along the inner surface of the existing pipeline. In addition, a belt-shaped inner member is wound from above the reinforcing bar to form a cylindrical liner, and a self-hardening fluid is injected between the liner and the inner surface of the existing pipe to be cured. As shown in FIG. 2, the hollow frame-shaped reinforcing body is assembled along the inner surface of the existing pipe line, and the inner surface members extending in the cylinder length direction of the existing pipe line are sequentially joined along the inner side of the reinforcing body. Then, after a plurality of inner surface members are attached to the inside of the reinforcing body and assembled into a cylindrical shape, a self-hardening fluid is injected into the gap between the inner surface member assembled into the cylindrical shape and the inner surface of the existing pipe and cured. Something like this has been proposed.

  However, as shown in Patent Document 1, a rebar having spring elasticity is spirally wound along an inner surface in an existing pipe line, and a strip-shaped inner member is wound on the rebar to form a cylindrical liner. The work of forming the film is very troublesome and time-consuming, and it is difficult to properly adhere the belt-like inner surface members to each other, and there is a problem that water leaks from the repaired part.

  Moreover, in what is shown by patent document 2, when attaching a some internal surface member to the inner side of a reinforcement body, and assembling a cylinder shape, the said reinforcement body is provided with the some fitting member continued in the cylinder length direction of the existing pipe line. At the same time, the protrusions for fitting to be fitted to the fitting members are provided on both sides in the width direction of the inner surface member, and the protrusions for fitting in the inner surface members to be continuously brought into contact with each other in the cylinder length direction are within the same fitting member. So that these inner surface members are kept in contact with each other in the cylinder length direction.

  However, when assembling a plurality of inner surface members inside the reinforcement body into a cylindrical shape, the fitting convex portions provided on both sides in the width direction of the inner surface member are joined together with the fitting convex portions on the adjacent inner surface members to be joined. It is very troublesome and time-consuming to fit these inner members in the same fitting member so that these inner surface members are continuously brought into contact with each other in the cylinder length direction. When fitting them in the same fitting member, it is also difficult to ensure sufficient water-stopping at this fitting portion. For this reason, as shown in Patent Document 3, it is necessary to provide a seal member in the fitting member for fitting the fitting convex portion, and there is a problem that the operation becomes more troublesome. .

JP-A-8-2777992 JP 2001-311387 A JP 2014-20522 A

  This invention makes it a subject to solve the above problems in the case of repairing an aged existing pipeline.

  That is, in the present invention, the skeleton is disposed on the inner surface side of the existing pipeline, and the liner member is mounted on the inner surface side of the skeleton, and a curable filler is provided between the liner member and the existing pipeline. When repairing existing pipelines by injecting and curing, it is an issue to repair existing pipelines in a short time and to be able to repair appropriately without leaking from the repaired parts. Is.

  In the repair method of the existing pipe line according to the present invention, in order to solve the above-described problems, the reinforcing member disposed on the inner surface side of the existing pipe line is connected to the length direction of the existing pipe line through a predetermined interval. The framed structure is placed along the length direction in the existing pipeline, and a liner member is mounted on the inner periphery of the framework, and a curable filling is provided between the liner member and the existing pipeline. In the repair method of an existing pipe line in which a material is injected and hardened, a plurality of plate-like profiles along the length direction of the existing pipe line are provided as predetermined liners on the inner surface side of the frame as the liner member. And mounting a watertight sheet between the frame body and the liner member so as to cover the inner surface side of the frame body, a fitting recess is provided on the inner surface side of the reinforcing member in the frame body, Profile The watertight sheet in the gap portion between the cylinders is pushed and fitted into the recess for fitting by the fitting member along the length direction of the existing pipe line, and the fitting member is fitted to the length of the plate-like profile on both sides thereof. It was made to contact | abut to a side part, and it was made to harden | cure by inject | pouring a sclerosing | hardenable filler between the said watertight sheet | seat and an existing pipe line.

  Further, in the repair member for an existing pipe line according to the present invention, a frame structure in which a reinforcing member arranged on the inner surface side of the existing pipe line is connected at a predetermined interval in the length direction of the existing pipe line, and the frame A liner member disposed on the inner surface side of the body, and as the liner member, a plurality of plate-like profiles along the length direction of the existing pipe line are arranged at predetermined intervals on the inner surface side of the skeleton. When placing the watertight sheet between the framework and the liner member so as to cover the inner surface of the framework, a fitting recess is provided on the inner surface of the reinforcing member of the framework, and the plate A fitting member that pushes and holds the water-tight sheet in the gap between the profiled profiles into the fitting recess and abuts the long side of the plate profile on both sides is the length of the existing pipe line. It is provided along.

  And in the repair method and repair member of the said existing pipe line, when repairing the existing pipe line which became cylindrical, in the said reinforcement member arrange | positioned at the inner surface side of the existing pipe line which became cylindrical An annular reinforcing member is used, and a watertight sheet having a cylindrical shape is used as a watertight sheet to be mounted between the frame body and the liner member, and the watertight sheet covers the inner peripheral side of the frame body. Install it.

  Further, in the above-described existing pipe line repair method and repair member, in providing a plurality of plate-like profiles along the length direction of the existing pipe line at a predetermined interval on the inner surface side of the framework, It is preferable that each plate-like profile is integrally attached to the water-tight sheet so that a plurality of plate-like profiles are spaced from each other.

  Moreover, it is preferable to hold | maintain the edge part of the long side part of the plate-shaped profile in the both sides contact | abutted to the fitting member as mentioned above by the said fitting member.

  In addition, when repairing an existing pipe line having a cylindrical shape as described above, when mounting the water-tight sheet having a cylindrical shape so as to cover the inner peripheral side of the skeleton, the water-tight sheet is formed into a cylindrical shape. The joining part of the watertight sheet | seat formed in the cylinder shape can be made to be in a watertight state.

  In the repair method and repair member of the existing pipe line according to the present invention, the liner member is provided along the length direction of the existing pipe line as the liner member on the inner surface side of the skeleton body arranged along the length direction in the existing pipe line. A plurality of plate-like profiles are arranged on the inner surface side of the frame body, and the watertight sheet is mounted between the frame body and the liner member so as to cover the inner surface side of the frame body. Thus, the liner member is prevented from being exposed to water leakage or the like, and a reliable watertight state can be obtained.

  In addition, as described above, a plurality of plate-like profiles are arranged on the inner surface side of the skeleton body at a predetermined interval so as to cover the inner peripheral side of the skeleton body between the skeleton body and the liner member. When mounting the watertight sheet, a recess for fitting is provided on the inner peripheral side of the annular reinforcing member in the framework, and the watertight sheet in the gap portion between the plate-like profiles is fitted along the length direction of the existing pipeline. When the fitting member is pushed into the fitting recess and fitted together, and the fitting member is brought into contact with the long side portions of the plate-like profile on both sides thereof, the watertight sheet is securely attached to the skeleton by the fitting member. The plate-like profile and the fitting member are integrally and continuously brought into contact with each other on the inner peripheral side of the framework so that there is no gap on the inner surface side of the framework. Over member is to be formed.

  Further, when a plurality of plate-like profiles are integrally attached to the watertight sheet with a predetermined interval on the inner surface side of the skeleton body, the plurality of plate-like profiles are arranged on the inner surface side of the skeleton body, and the skeleton body The operation of mounting the watertight sheet between the liner member and the liner member so as to cover the inner surface side of the skeleton can be performed easily and appropriately.

  Further, when the end portions of the long side portions of the plate-like profile on both sides in contact with the fitting member as described above are held by the fitting member, the liner member and the existing pipe line are interposed as described above. Even when hardened by injecting a curable filler, each plate-like profile is properly fixed to the inner periphery of the framework to prevent the plate-like profile from peeling off or falling off. The

  In addition, when repairing an existing pipe line having a cylindrical shape as described above, a water-tight sheet is formed in a cylindrical shape when the cylindrical water-tight sheet is attached so as to cover the inner peripheral side of the framework. However, when the joined portion of the water-tight sheet in a cylindrical shape is made water-tight, the cylindrical water-tightness corresponding to the inner diameter of the skeleton is used even when a skeleton having a different inner diameter is used according to the inner diameter of the existing pipe line. Sheets can be easily manufactured.

  In the present invention, when the existing pipeline is repaired by injecting and curing a curable filler between the existing pipeline and the liner member, the existing pipeline can be easily repaired in a short time. It will be possible to repair properly without leaking water from the repaired part.

In embodiment of this invention, it is the longitudinal cross-sectional explanatory view which showed the state which has arrange | positioned the framework in the existing pipe line along the length direction of the existing pipe line. In the said embodiment, it is a cross-sectional explanatory view which showed the state which has arrange | positioned the frame in the existing pipe line. In the said embodiment, it is the partial explanatory view which showed the state attached to the water-tight sheet | seat integrally with the some plate-shaped profile along the length direction of the existing pipe line via the predetermined space | interval in the width direction. In the said embodiment, while joining the edge part of a watertight sheet | seat and forming in a cylinder shape, it is the fragmentary sectional explanatory view which showed the example which attaches a plate-shaped profile so that this junction part may be covered. In the above-described embodiment, the state of the watertight sheet in the gap between the plate-like profiles is pushed into the fitting recess provided on the inner peripheral side of the reinforcing member in the framework by the fitting member and is shown fitted. FIG. It is the fragmentary perspective view which showed the fitting member used in the said embodiment. In the above-described embodiment, the portion of the water-tight sheet in the gap between the plate-like profiles is fitted into the fitting recess provided on the inner peripheral side of the reinforcing member in the framework by the fitting member. FIG. 6 is a partial cross-sectional explanatory view showing a state in which the member and the plate-like profiles on both sides thereof are brought into close contact with each other and the plate-like profile is held by the fitting member. In the said embodiment, it is the cross-sectional explanatory drawing which showed the state hardened by inject | pouring curable fillers, such as mortar, between the watertight sheet | seat with which the inner periphery side of the framework was mounted | worn, and an existing pipe line. is there.

  Hereinafter, the repair method and repair member of the existing pipeline which concern on embodiment of this invention are demonstrated concretely based on an accompanying drawing. In addition, the repair method and repair member of the existing pipeline which concern on this invention are not limited to what was shown to the following embodiment, In the range which does not change the summary of invention, it can change suitably and can implement.

  In this embodiment, as shown in FIGS. 1 and 2, when repairing the existing pipe line 1 having a cylindrical shape, an annular reinforcing member 11 disposed on the inner surface side of the existing pipe line 1 is connected to the connecting member. 12, the frameworks 10 that are sequentially connected in the length direction of the existing pipeline 1 with a predetermined interval are arranged in the existing pipeline 1 along the length direction.

  Here, in the reinforcing member 11, a plurality of fitting recesses 13 in which the insides of the recesses are enlarged so as to have a predetermined interval in the circumferential direction are provided on the inner peripheral side thereof.

  Further, in manufacturing the liner member 20 to be attached to the inner periphery of the skeleton 10, as shown in FIG. 3, a plurality of plate-like profiles 21 along the length direction of the existing pipeline 1 are arranged in the width direction. It is made to attach to the watertight sheet | seat 22 integrally through a predetermined space | interval. And the watertight sheet | seat 22 is formed in a cylinder shape so that the plate-shaped profile 21 may be located in the inner peripheral side, and it arrange | positions the several plate-shaped profile 21 in the circumferential direction in the inner peripheral side of the frame 10. FIG. ing. In addition, in each said plate-shaped profile 21, it forms in the taper shape so that the edge part of the long side part 21a in the width direction both sides may spread toward the watertight sheet | seat 22. As shown in FIG.

  In addition, as the watertight sheet 22, a base cloth 22 a made of a woven fabric or the like having a watertight film 22 b formed on one side is used, and the plate-like profile 21 is attached on the watertight film 22 b of the watertight sheet 22. The base fabric 22a in the watertight sheet 22 is opposed to the skeleton 10.

  Then, in forming the watertight sheet 22 in a cylindrical shape so that the base fabric 22a in the watertight sheet 22 faces the skeleton 10, it was formed in a cylindrical shape as shown in FIG. At one end side of the joining portion of the watertight sheet 22, the watertight coating 22b formed on the base fabric 22a is removed with a predetermined width, and at the other end side of the joining portion of the watertight sheet 22, only the watertight coating 22b is prescribed. The width of the water-tight sheet 22 is left in the state where the positions of the joint portions of the water-tight sheet 22 and the joint portions of the water-tight sheet 22 and the joint portions of the water-tight coating 22b are shifted. In addition, the watertight coating 22b is brought into close contact with each other, and both the joint portion between the base fabrics 22a and the joint portion between the watertight coating 22b which are in a state of being shifted in this way So as to cover, and to attach the plate-like profile 21 over the watertight coating 22b.

  In this way, the plate-like profile 21 can be appropriately attached without causing a step in the joint portion of the water-tight sheet 22, and the joint portion between the base fabric 22a and the water-tight coating 22b between the water-tight sheet 22 and each other. Both of the joint portions are covered with the plate-like profile 21, and the water tightness at the joint portion of the watertight sheet 22 is improved.

  Next, in the state where the water-tight sheet 22 is formed in a cylindrical shape so that the plate-like profile 21 is positioned on the inner peripheral side as described above, as shown in FIG. 5, the water-tightness in the gap between the plate-like profiles 21 is shown. The portion of the sheet 22 is aligned with the position of the recessed portion 13 for fitting provided on the inner peripheral side of the reinforcing member 11, and the watertightness is achieved by the fitting member 23 along the length direction of the existing pipe line 1. The portion of the sheet 22 is pushed into the fitting recess 13 to be fitted.

  Here, in the fitting member 23, as shown in FIG. 6, a pair of elastically deformable members that are fitted into the fitting recess 13 from the plate portion 23 a extending in the length direction of the existing pipe line 1. The leg portion 23b protrudes through a required interval, and the end portions of the long side portion 23c on both sides in the width direction of the plate portion 23a are tapered.

  Then, as described above, when the fitting member 23 pushes the portion of the watertight sheet 22 in the gap between the plate-like profiles 21 into the fitting recess 13 to be fitted, as shown in FIG. In a state where the tip portions of the pair of leg portions 23b are contracted, the pair of leg portions 23b are pushed into the fitting recess 13, and then the pair of leg portions 23b whose tip portions are contracted are elastically restored. As described above, the portion of the watertight sheet 22 in the gap between the plate profiles 21 is pushed into the fitting recess 13 to be fitted. Further, in this fitting member 23, the end portions of the tapered long side portion 23c on both sides in the width direction of the plate portion 23a are set to the long side portion 21a having the tapered shape of the plate-like profile 21 on both sides thereof. The fitting member 23 and the plate-like profiles 21 on both sides thereof are brought into close contact with each other, and the plate-like profiles 21 on both sides thereof are held by the fitting member 23.

  In this way, the watertight sheet 22 to which the plurality of plate-like profiles 21 are attached is surely held by the frame body 10, and each plate-like profile 21 and each fitting member 23 are included in the frame body 10. The plate-like profile 21 and the fitting member 23 are connected to each other so that there is no gap in the circumferential direction of the skeleton 10 so that the plate-like profile 21 and the fitting member 23 are connected. The state of being held by the fitting member 23 is maintained.

  In this state, as shown in FIG. 8, a curable filler 2 such as mortar is injected between the watertight sheet 22 and the existing pipe line 1 to be cured.

  Here, in this embodiment, the watertight sheet 22 to which the plurality of plate-like profiles 21 are attached as described above is fitted into the fitting recess 13 provided in the reinforcing member 11 of the skeleton 10 by the fitting member 23. The plate-like profiles 21 and the fitting members 23 are attached so as to be integrated continuously on the inner peripheral side of the skeleton 10, and the plate-like profiles 21 are held by the fitting members 23. Therefore, the work for repairing the existing pipe line 1 can be performed in a short time by injecting and curing the curable filler 2 between the liner member 20 and the existing pipe line 1. The water-tight sheet 22 greatly improves the water-tightness of the liner member 20, and is filled with a filler such as mortar that has hardened due to vehicle load or earthquake vibration. Even if a crack occurs in the eliminated be leakage inside.

  In addition, in this embodiment, although the case where the existing pipeline 1 which became cylindrical shape was repaired was demonstrated, the shape of the existing pipeline 1 to repair is not limited to what was cylindrical shape. For example, in a rectangular pipe made of reinforced concrete built in the field, when the top plate and side walls are severely corroded and the bottom plate is healthy, only the top plate and side walls can be repaired into a gate shape. In this case, a reinforcing member 11 having a gate shape corresponding to the inner surface shape of the existing pipe line 1 is used.

DESCRIPTION OF SYMBOLS 1 Existing pipe line 2 Filler 10 Frame 11 Reinforcement member 12 Connection member 13 Recess 20 for fitting 20 Liner member 21 Plate-like profile, 21a Long side part 22 Watertight sheet, 22a Base cloth, 22b Watertight film 23 Fitting member, 23a Plate Part, 23b leg part, 23c long side part

Claims (7)

  A framework in which reinforcing members arranged on the inner surface side of the existing pipeline are connected to each other in the length direction of the existing pipeline via a predetermined interval is arranged in the existing pipeline along the length direction, and the framework In the repair method of an existing pipe line in which a liner member is attached to the inner periphery of the body and a curable filler is injected and cured between the liner member and the existing pipe line, the existing pipe line is used as the liner member. A plurality of plate-like profiles along the length direction of the frame are arranged at predetermined intervals on the inner surface side of the frame body, and the inner surface side of the frame body is covered between the frame body and the liner member. When mounting the watertight sheet as described above, a recess for fitting is provided on the inner surface side of the reinforcing member in the framework, and the watertight sheet in the gap portion between the plate profiles is fitted along the length direction of the existing pipe line Part The fitting member is pushed into and fitted into the fitting recess, and the fitting member is brought into contact with the long side portion of the plate-like profile on both sides thereof, so that the curable filling is provided between the watertight sheet and the existing pipe line. A method of repairing an existing pipe line characterized by injecting a material and hardening it.   A frame structure in which an annular reinforcing member arranged on the inner surface side of an existing pipe line in a cylindrical shape is connected to the length of the existing pipe line through a predetermined interval in the length direction of the existing pipe line. In the repair method of the existing pipeline, the liner member is mounted on the inner surface side of the frame body, and a curable filler is injected between the liner member and the existing pipeline to be cured. As the liner member, a plurality of plate-like profiles along the length direction of the existing pipe line are arranged at predetermined intervals in the circumferential direction on the inner surface side of the skeleton, and the skeleton, the liner member, In order to attach a cylindrical watertight sheet so as to cover the inner surface side of the frame body, a fitting recess is provided on the inner peripheral side of the annular reinforcing member in the frame body, In the gap The watertight sheet is pushed and fitted into the fitting recess by the fitting member along the length direction of the existing pipeline, and the fitting member is brought into contact with the long side portion of the plate-like profile on both sides thereof. A method for repairing an existing pipe line, wherein a hardening filler is injected between the water-tight sheet and the existing pipe line and cured.   The repair method of the existing pipe line according to claim 1 or 2, wherein a plurality of plate-like profiles are integrally attached to the watertight sheet.   The edge part of the long side part of the plate-shaped profile in the both sides contact | abutted to the said fitting member is hold | maintained by the said fitting member, The any one of Claims 1-3 characterized by the above-mentioned. How to repair existing pipelines.   In attaching a watertight sheet that is cylindrical so as to cover the inner surface side of the skeleton, the watertight sheet is formed in a cylindrical shape, and the joint portion of the watertight sheet formed in a cylindrical shape is in a watertight state. The repair method of the existing pipe line of any one of Claims 2-4 characterized by the above-mentioned.   A framework in which reinforcing members arranged on the inner surface side of the existing pipeline are connected to each other in the length direction of the existing pipeline via a predetermined interval; and a liner member arranged on the inner surface side of the framework, As the liner member, a plurality of plate-like profiles along the length direction of the existing pipe line are arranged at a predetermined interval on the inner surface side of the skeleton, and between the skeleton and the liner member, When mounting the watertight sheet so as to cover the inner surface side of the framework, a recess for fitting is provided on the inner surface side of the reinforcing member in the framework, and the watertight sheet in the gap portion between the plate-like profiles is placed in the recess for fitting. The existing pipe line repairing section is provided with a fitting member that is pushed in and held in contact with the long sides of the plate-like profile on both sides along the length direction of the existing pipe line. .   A skeleton body in which an annular reinforcing member disposed on the inner surface side of the existing pipe line in a cylindrical shape is connected to the existing pipe line in the length direction through a predetermined interval, and is disposed on the inner periphery of the skeleton body. A liner member, and as the liner member, a plurality of plate-like profiles along the length direction of the existing pipe line are arranged at predetermined intervals in the circumferential direction on the inner peripheral side of the framework, When mounting the cylindrical watertight sheet between the framework and the liner member so as to cover the inner periphery of the framework, a fitting recess is provided on the inner periphery of the annular reinforcing member of the framework. A fitting member that pushes and holds the water-tight sheet in the gap between the plate-like profiles into the fitting recess and contacts the long sides of the plate-like profiles on both sides, Direction Repair section of the existing pipeline, characterized in that provided along.

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