JP6471043B2 - Cylinder repair member, underground drainage facility including the same, and cylinder repair method - Google Patents

Description

  The present invention relates to a cylinder member repair member, an underground drainage facility including the same, and a cylinder part repair method.

  Pipes of underground drainage facilities buried in the ground (hereinafter referred to as existing pipes) may be eroded and deteriorated by corrosive gas or deposits due to long-term use. In addition, existing pipelines may be damaged by land subsidence or pressure from the ground. If the existing pipeline is damaged, unknown water (such as rainwater) may enter the existing pipeline from the damaged location, or the water in the existing pipeline may leak to the outside. Therefore, repairs to existing pipelines that have been damaged are being carried out.

  As a technique for repairing an existing pipe line, for example, Patent Document 1 discloses that an old protective iron lid and a concrete top member are removed and a donut-shaped pedestal is loaded on the remaining portion of the concrete base. ing. Further, for example, Patent Document 2 discloses that when a raised portion is not formed in the interior, an anchor bolt is driven into the side surface of the strip and the repair member is supported by the anchor bolt.

JP 2003-213712 A JP 2014-234484 A

  However, the technology of Patent Document 1 only refers to a method for repairing an old protective iron lid and a concrete upper member, and the position of the repair portion of the concrete strip is limited. That is, Patent Document 1 does not propose a technique capable of repairing a damaged portion when a portion other than the protective iron cover of the concrete strip and the upper member, that is, a cylinder portion of the concrete strip is damaged. Moreover, in the technique of patent document 2, since an operator will enter more and drive an anchor bolt, a difficult operation | work will be needed. Therefore, development of a repair member that can be easily repaired has been desired.

  The present invention has been made in view of such a point, and its purpose is to provide a repair member for a cylindrical portion capable of easily repairing the cylindrical portion regardless of a deteriorated portion or a damaged portion of the cylindrical portion, It is to provide an underground drainage facility provided and a method of repairing a tubular portion.

  The cylindrical member repairing member according to the present invention has an opening on the upper side, a cylindrical portion having an inlet and an outlet on the side, a cylindrical portion formed inside, and provided from the inlet to the outlet. And an invert in which a long groove-like invert channel is formed, and a repair member for repairing a manhole or a manhole that is buried in the ground, is formed in an annular shape, and has a first hole in the center. A first annular member having an outer diameter smaller than the inner diameter of the cylindrical portion, and inserted into the cylindrical portion so that the first hole portion is positioned on the invert channel, and a cylindrical body having the second hole portion, A flexible seal member disposed along the periphery of the outer peripheral surface of the cylinder, projecting radially outward from the cylinder, and having an outer diameter larger than the inner diameter of the cylinder, and next to the seal member Projecting radially outward from the cylinder, the projecting length is shorter than the projecting length of the seal member, A support member that supports the seal member when bent in the axial direction of the cylindrical body, and a standpipe disposed on the first annular member so that the second hole portion is positioned on the first hole portion; And a filler filled in a space partitioned by the inner peripheral surface of the cylindrical portion and the vertical pipe, and a lid that covers the opening above the cylindrical body.

  According to the repair member of the cylinder portion according to the present invention, the relatively easy work of inserting the first annular member and the vertical pipe into the inside of the cylinder portion is sufficient, and the work burden of driving a member such as an anchor bolt into the cylinder portion. There is no need for big work. Thereby, even if the raised portion is not formed in the manhole, the cylindrical portion can be easily repaired. Moreover, since the filler is filled in the space partitioned by the inner peripheral surface of the cylindrical portion and the vertical pipe, the cylindrical portion can be repaired regardless of the damaged portion or the deteriorated portion of the cylindrical portion. By such repair, drainage in the cylinder part is prevented from leaking to the outside, and water outside the cylinder part is prevented from entering the cylinder part from a damaged location. It is also possible to prevent a tree root or the like outside the cylindrical portion from entering the cylindrical portion from the damaged portion.

  According to one preferable aspect of the present invention, the third hole is formed in an annular shape and has a third hole portion at the center into which the standing tube is inserted, and has an outer diameter smaller than the inner diameter of the tube portion. It further includes one or a plurality of second annular members stacked on the support member of the standpipe with the standpipe cylinder inserted into the part.

  According to the said aspect, the space partitioned off by the internal peripheral surface of a cylinder part and a standing pipe can be made small by arrange | positioning 1 or several 2nd annular members. Thereby, the quantity of fillers, such as mortar, can be reduced, for example. Thereby, the construction period can be shortened. Moreover, since the quantity of fillers, such as mortar, can be reduced as mentioned above, it can suppress that the crack resulting from hardening of a filler after construction generate | occur | produces on the ground surface.

  According to another preferable aspect of the present invention, the invert includes an inclined upper surface that supports the first annular member, and the first annular member is in contact with the inclined upper surface of the invert and has an inclined lower surface having the same inclination as the inclined upper surface. It has.

  According to the said aspect, the adhesiveness of the 1st annular member with respect to invert can be improved. Thereby, the first annular member is stably supported by the invert. In particular, when one or a plurality of second annular members are stacked above the first annular member, it is more desirable to adopt this aspect.

  According to another preferable aspect of the present invention, the first annular member includes a notch portion in which an outer peripheral surface of the first annular member is cut out in a radial direction and formed in a semicircular shape in a side view. The notch is disposed on the invert channel.

  According to the above aspect, the interference of the first annular member with respect to the invert flow path and the flow path above the invert flow path can be eliminated. That is, the first annular member can be arranged so as not to block the invert flow path and the flow path above it.

  According to another preferable aspect of the present invention, the first annular member includes an upper surface that supports the vertical pipe and is formed horizontally.

  According to the said aspect, the load of a standing pipe and the load of a filler can be disperse | distributed uniformly to a 1st annular member. Thereby, it is possible to prevent fatigue failure from occurring in the first annular member.

  According to another preferable aspect of the present invention, a convex portion is formed on the upper portion of the second annular member, a concave portion is formed on the lower portion of the second annular member, and the first second annular portion is formed on the support member of the vertical pipe. The member is disposed, the second second annular member is stacked on the first second annular member, and the convex portion of the first second annular member is fitted into the concave portion of the second second annular member. ing.

  According to the above aspect, another second annular member can be stably stacked on the second annular member. Further, misalignment of another second annular member with respect to the second annular member can be prevented.

  According to another preferable aspect of the present invention, the convex portion and the concave portion of the second annular member are formed in a tapered shape that tapers upward as the second annular member is disposed.

  According to the aspect described above, another second annular member can be easily stacked on the second annular member, and the other second annular member can be easily detached from the second annular member.

  The underground drainage facility according to the present invention has an opening on the upper side, a cylindrical part having an inlet and an outlet on the side, and a long groove formed inside the cylindrical part and provided from the inlet to the outlet. An underground drainage facility comprising an invert formed with a shaped invert channel and buried in the ground or a manhole, and a repair member for repairing the manhole or the manhole, the repair member being , Formed in an annular shape, having a first hole in the center, having an outer diameter smaller than the inner diameter of the tube, and being inserted into the tube so that the first hole is positioned on the invert channel The first annular member, the cylinder having the second hole, and the outer periphery of the cylinder are arranged along the periphery of the cylinder, projecting radially outward from the cylinder, and having an outer diameter larger than the inner diameter of the cylinder. A flexible sealing member having a protrusion projecting radially outward from the cylinder next to the sealing member. And a support member that supports the seal member when the seal member bends in the axial direction of the cylindrical body, and the second hole portion is the first hole portion. Covers a standpipe disposed on the first annular member so as to be positioned above, a filler filled in a space partitioned by the inner peripheral surface of the tube part and the standpipe, and an opening above the tube And a lid.

  According to the underground drainage facility according to the present invention, when the cylinder portion is damaged or deteriorated, the cylinder portion can be repaired using the repair member of the present invention.

  The cylindrical portion repairing method according to the present invention is formed in a cylindrical portion having an opening on the upper side and having an inlet and an outlet on the side, and provided inside the cylindrical portion, and provided from the inlet to the outlet. And an invert in which a long groove-like invert channel is formed, and is a repair method for repairing a manhole or an underground buried in the ground, which is formed in an annular shape and has a first hole in the center. A step of inserting the first annular member having an outer diameter smaller than the inner diameter of the cylindrical portion into the cylindrical portion so that the first hole portion is positioned on the invert channel, and a cylindrical body having the second hole portion, A flexible seal member disposed along the periphery of the outer peripheral surface of the cylinder, projecting radially outward from the cylinder, and having an outer diameter larger than the inner diameter of the cylinder, and next to the seal member Projects radially outward from the cylinder, and the projecting length is shorter than the projecting length of the seal member. And a support member that supports the seal member when the member bends in the axial direction of the cylindrical body, and is arranged on the first annular member so that the second hole portion is positioned on the first hole portion. A step, a step of arranging a lid so as to cover the opening above the cylindrical body, and a step of filling a filler into a space partitioned by the inner peripheral surface of the cylindrical portion and the vertical pipe.

  According to the method for repairing a tubular portion according to the present invention, the filler is filled in the space partitioned by the inner peripheral surface of the tubular portion and the vertical pipe, so that the relevant portion is not affected by the damaged portion or the degraded portion of the tubular portion. The cylinder part can be repaired. In addition, a relatively easy operation such as inserting the first annular member and the standpipe into the cylinder portion is sufficient, and an operation that requires a large work load such as driving a member such as an anchor bolt into the cylinder portion is not necessary. Thereby, a cylinder part can be repaired easily. By the above repair, the drainage in the cylinder part is prevented from leaking to the outside, and the water outside the cylinder part is prevented from entering the cylinder part from the damaged part. It is also possible to prevent a tree root or the like outside the cylindrical portion from entering the cylindrical portion from the damaged portion.

  According to the present invention, a tubular member repairing member capable of easily repairing the tubular portion regardless of a deteriorated or damaged portion of the tubular portion, an underground drainage facility provided with the same, and a method for repairing the tubular portion Can be provided.

It is sectional drawing of the repair member inserted in the cylinder part of the top which concerns on 1st Embodiment of this invention. (A) is the top view which concerns on 1st Embodiment of this invention, (b) is the IIb-IIb sectional view taken on the line of (a). (A) is a top view of the 1st annular member concerning a 1st embodiment of the present invention, and (b) is a IIIb-IIIb line sectional view of (a). It is a front view of a standing pipe concerning a 1st embodiment of the present invention. It is a sectional view of a standing pipe concerning a 1st embodiment of the present invention. (A) And (b) is explanatory drawing for demonstrating the order of the repair method by the repair member which concerns on one Embodiment of this invention. (A) And (b) is explanatory drawing for demonstrating the order of the repair method by the repair member which concerns on one Embodiment of this invention. It is sectional drawing of the repair member inserted in the cylinder part of the top which concerns on 2nd Embodiment of this invention. (A) is a top view of the 2nd annular member concerning a 2nd embodiment of the present invention, and (b) is a IXb-IXb line sectional view of (a). (A) is a top view of another 2nd annular member concerning a 2nd embodiment of the present invention, and (b) is an Xb-Xb line sectional view of (a).

  Hereinafter, the repair member of the cylinder part which concerns on 1st Embodiment of this invention, an underground drainage facility provided with the same, and the repair method of a cylinder part are demonstrated.

  As shown in FIG. 1, the underground drainage facility 100 is a facility that is buried in the ground and allows drainage to flow. In this specification, “drainage” means discharged water, and includes so-called sewage and rainwater. The underground drainage facility 100 according to the present embodiment includes 50 and the repair member 1. Hereinafter, the case where 50 cylinder parts 52 are repaired with the repair member 1 is demonstrated. The “repair” in the present invention is not to restore the damaged cylinder part 52 itself but to restore the function of the damaged cylinder part 52 as a pipeline.

  As shown in FIG. 2 (b), the first 50 is formed in a bottomed cylindrical shape. The first 50 includes a bottom 51, a cylinder 52 connected to the bottom 51 and extending toward the ground, and a cylindrical upper member 53 stacked on the upper end 52 a of the cylinder 52. An annular groove 53a is formed in the upper part of the upper member 53, and a flat lid 54 is installed in the groove 53a. The upper surface 54a of the lid 54 installed in the groove 53a is substantially flush with the ground. As shown in FIG. 2A, an inflow port 57 and an outflow port 58 are provided through the side of the cylindrical portion 52. An inflow pipe (not shown) is connected to the inflow port 57, and an outflow pipe (not shown) is connected to the outflow port 58. The lid 54 is removed during repair. The first 50 includes an invert 55 formed on the bottom 51. The invert 55 supports a first annular member 2 (see FIG. 1) described later. The invert 55 is formed with an invert channel 56 having a long groove shape provided from the inlet 57 toward the outlet 58. The invert 55 includes a first invert forming portion 55a and a second invert forming portion 55b disposed on both sides of the invert flow channel 56. The first invert forming portion 55 a has a first inclined upper surface 55 a 1 that decreases in height toward the invert channel 56. The second invert forming portion 55 b has a second inclined upper surface 55 b 1 that decreases in height toward the invert channel 56. The drainage flows into the invert channel 56 from the inlet 57, and the drainage that has flowed through the invert channel 56 flows out of the outlet 50 through the outlet 58.

  In the present embodiment, 50 cylindrical portions 52 are further damaged, and repair using the repair member 1 is performed on the damaged portion. Hereinafter, details of the repair member 1 will be described. As shown in FIG. 1, the repair member 1 includes a first annular member 2, a standpipe 4, a mortar 5, and a lid 6. When repairing the cylindrical portion 52, first, the lid 54 (see FIG. 2) is removed as described above.

  The first annular member 2 is formed, for example, by resin molding. If resin is used, it will be easy to mold. The first annular member 2 is supported by the invert 55. The first annular member 2 has a function of a raising member for installing the standpipe 4 on the invert 55 via the first annular member 2 when the raised portion is not formed in the cylindrical portion 52. ing. The first annular member 2 may have an outer shape along the inner peripheral surface of the cylindrical portion 52. The first annular member 2 is formed in an annular shape. The first annular member 2 may be thin. Specifically, the thickness of the first annular member 2 may be smaller than the thickness of the cylindrical portion 52. The outer diameter of the first annular member 2 is formed smaller than the inner diameter of the cylindrical portion 52. As shown in FIGS. 3A and 3B, a first hole 10 is formed in the center of the first annular member 2. The first annular member 2 includes a notch 11. The notch 11 is formed in a semicircular shape when viewed from the side by cutting the outer peripheral surface of the first annular member 2 in the radial direction. As shown in FIG. 1, the first annular member 2 is disposed on the invert 55 such that the notch 11 is located above the invert flow path 56 and straddles the invert flow path 56. The notch 11 is formed larger than the inflow port 57 (see FIG. 2A) and the outflow port 58. Thereby, it can open | release, without blocking the invert flow path 56 and the flow path above it. A plurality of first annular members 2 having different thicknesses may be facilitated. This is because a damaged portion A (see FIG. 6A) of the cylindrical portion 52, which will be described later, is closed by a mortar 5 (see FIG. 7B) filled in the cylindrical portion 52 in a later step. Specifically, the height positions of the support member 41 and the seal member 44 of the vertical pipe 4, strictly speaking, the uppermost point of the seal member 44 in a state where the seal member 44 is bent upward in the axial direction of the cylindrical body 40. It is preferable to use the first annular member 2 having an appropriate thickness so that the height position is lower than the damaged portion A. In addition, although the notch part 11 is formed at the time of a shaping | molding process, it is not limited to this. An operator may process the notch portion 11 in the first annular member 2 by using a grinder or the like at the site.

  The first annular member 2 includes an annular upper surface 2b formed horizontally. The first annular member 2 includes an annular inclined lower surface 2a having substantially the same inclination as the first inclined upper surface 55a1 and the second inclined upper surface 55b1 described above. The inclined lower surface 2a is formed to be inclined so that the thickness of the first annular member 2 in the direction of the arrow D1 increases toward the first hole portion 10. The inclined lower surface 2a of the first annular member 2 is in contact with the first inclined upper surface 55a1 and the second inclined upper surface 55b1.

  As a material of the first annular member 2, for example, a composite resin can be used. Thereby, a space | gap can be decreased in the 1st annular member 2, and a load resistance can be enlarged. Thereby, even if the mortar 5 is filled on the 1st annular member 2, it can suppress that durability of the 1st annular member 2 falls. However, the material of the first annular member 2 is not limited to the above.

  Next, the vertical pipe 4 will be described. The vertical pipe 4 is formed in a cylindrical shape. As shown in FIGS. 4 and 5, the standpipe 4 includes a cylindrical body 40, a support member 41, and a seal member 44. A second hole 45 is formed in the cylindrical body 40. Although the material of the cylinder 40 is not specifically limited, In this embodiment, the cylinder 40 is made of vinyl chloride. It is preferable that at least a part of the outer peripheral surface of the cylindrical body 40 is sanded. As will be described later, when the mortar 5 is filled and hardened in a space partitioned by the inner peripheral surface of the cylindrical portion 52 and the vertical pipe 4, the mortar 5 and the sanding process mesh with each other. It becomes difficult to come off. The seal member 44 is provided at the lower end portion of the cylindrical body 40. However, it is also possible to provide the seal member 44 at a portion other than the lower end portion of the cylindrical body 40. The seal member 44 is formed in an annular shape and protrudes outward from the outer peripheral surface of the cylindrical body 40. The seal member 44 is formed over the entire circumference of the outer peripheral surface of the cylindrical body 40. The seal member 44 has an outer diameter larger than the inner diameter of the cylindrical portion 52. The seal member 44 has flexibility and is formed of rubber, for example. However, the seal member 44 only needs to be flexible, and the material thereof is not particularly limited. The method for attaching the seal member 44 to the cylindrical body 40 is not particularly limited, but in this embodiment, the seal member 44 is attached to the cylindrical body 40 with an adhesive.

  The support member 41 is a member that supports the seal member 44 when the seal member 44 bends upward in the axial direction of the cylindrical body 40 (see FIG. 1). The support member 41 is formed separately from the cylindrical body 40 and is attached to the cylindrical body 40. In the present embodiment, as shown in FIGS. 4 and 5, the support member 41 is located on the seal member 44. The support member 41 is formed in a boss shape and has an L-shaped cross section. The support member 41 includes a cylindrical part 42 provided in contact with the outer peripheral surface of the cylindrical body 40, and a support part 43 provided on the seal member 44 and extending radially outward from the lower end of the cylindrical part 42. I have. The support member 41 protrudes outward in the radial direction from the cylindrical body 40, and the protrusion length is shorter than the protrusion length of the seal member 44. The support member 41 is formed of a material harder than the seal member 44. In the present embodiment, the support member 41 is made of vinyl chloride, but the type of the material is not particularly limited. A cylindrical body 40 is fitted in the cylindrical portion 42. The cylinder part 42 and the support part 43 are integrally molded. In such a configuration, the standpipe 4 is inserted into the cylindrical portion 52 (see FIG. 1) and disposed on the first annular member 2 (see FIG. 1). Specifically, the standpipe 4 is disposed in a state where the lower end portions of the seal member 44 and the cylinder body 40 are in contact with the upper surface 2b (see FIG. 1) of the first annular member 2. In this case, the second hole 45 of the cylindrical body 40 is located above the first hole 10 of the first annular member 2. The peripheral wall of the first hole 10 of the first annular member 2 and the peripheral wall of the second hole 45 of the cylindrical body 40 are substantially flush. At this time, the seal member 44 comes into contact with the inner peripheral surface of the cylindrical portion 52 in a state of being bent upward in the axial direction of the cylindrical body 40. Thereby, the clearance gap between the sealing member 44 and the inner peripheral surface of the cylinder part 52 is closed.

  As shown in FIG. 1, the opening above the standpipe 4 is closed by a lid 6. The lid 6 can be attached to and detached from the standpipe 4. When cleaning and inspecting the invert 55 and the invert channel 56, the lid 6 is removed and the standing pipe 4 is opened. When the cleaning of the invert 55 and the invert flow path 56 is completed, the lid 6 is attached to the vertical pipe 4.

  In this embodiment, mortar 5 is used as the filler. In addition to the mortar 5, other materials such as concrete may be filled as a filler. The mortar 5 may be filled with quick setting mortar. By filling the quick setting mortar, the curing time can be shortened and the work period can be shortened. The mortar 5 is filled in the cylindrical portion 52. Specifically, as shown in FIG. 1, a space partitioned by the upright pipe 4 and the inner peripheral surface of the cylindrical portion 52 is formed. The mortar 5 is filled in the space. The mortar 5 is filled so that the upper surface of the mortar 5 is substantially flush with the upper surface of the lid 6 and the upper end surface of the upper member 53. The space may be filled with a liquid curable injecting material before filling with the mortar 5. Thereby, even if there is a gap between the inner peripheral surface of the cylindrical portion 52 and the seal member 44, the gap is filled with the curable injection material. Thereby, it is possible to prevent the mortar 5 or water from leaking between the inner peripheral surface of the cylindrical portion 52 and the seal member 44.

  Next, a procedure for repairing the cylindrical portion 52 using the repair member 1 will be described. Here, as shown to Fig.6 (a), the location A of the cylinder part 52 shall be damaged. Hereinafter, this part A is called a damaged part. This damage is caused by, for example, erosion caused by corrosive gas or deposits due to long-term use, or is caused by ground subsidence or fatigue due to a load from the ground. If the cylindrical portion 52 is damaged in this way, the drainage in the cylindrical portion 52 may leak to the outside, or external water may enter the cylindrical portion 52, so the cylindrical portion 52 is repaired by the repair member 1. .

  First, as shown in FIG. 6A, the lid 54 (see FIG. 2) of the upper member 53 is removed. Thereby, the cylinder part 52 will be in the open state. Next, as shown in FIG. 6B, the first annular member 2 is inserted into the cylindrical portion 52 and disposed on the invert 55. In this case, the first annular member 2 is inserted so as to be separated from the inner peripheral surface of the cylindrical portion 52. The first annular member 2 may be inserted so that the central axis of the first annular member 2 and the central axis of the cylindrical portion 52 overlap. At this time, the first annular member 2 is disposed on the invert 55 such that the cutout portion 11 is located above the invert flow path 56 and straddles the invert flow path 56. In the present embodiment, as described above, the inclined lower surface 2a of the first annular member 2 has substantially the same inclination as the first inclined upper surface 55a1 and the second inclined upper surface 55b1. Therefore, if the inclined lower surface 2a of the first annular member 2 is disposed along the first inclined upper surface 55a1 and the second inclined upper surface 55b1, the central axis of the first annular member 2 and the central axis of the cylindrical portion 52 naturally overlap. It is like that.

  Next, as shown in FIG. 7A, the standpipe 4 is inserted into the cylindrical portion 52 and disposed on the first annular member 2. In this case, the standpipe 4 may be inserted so that the center axis of the standpipe 4 and the center axis of the first annular member 2 overlap. At this time, the peripheral wall of the second hole 45 of the cylindrical body 40 and the peripheral wall of the first hole 10 of the first annular member 2 are substantially flush. As a result, the seal member 44 comes into contact with the inner peripheral surface of the cylindrical portion 52 in a state of being bent upward in the axial direction of the cylindrical body 40. As a result, the adhesion between the seal member 44 and the inner peripheral surface of the cylindrical portion 52 can be improved. As a result, the gap between the seal member 44 and the inner peripheral surface of the cylindrical portion 52 is reliably closed. Thereby, it is prevented that the mortar 5 (see FIG. 7B) filled in the cylindrical part 52 in a subsequent process enters the lower part in the cylindrical part 52. Since the seal member 44 receives pressure from the inner peripheral surface of the cylindrical portion 52 when the standpipe 4 is inserted, the center axis of the standpipe 4 and the center axis of the first annular member 2 are likely to overlap, and the standpipe 4 Is easily arranged in the center. Moreover, when the peripheral wall of the 2nd hole 45 and the peripheral wall of the 1st hole part 10 become substantially flush | planar, when the various instruments for maintenance management are inserted from the ground, the said instrument becomes the 1st hole part 10. And the peripheral wall of the second hole 45 are less likely to get caught. After arranging the standpipe 4 as described above, the opening above the standpipe 4 is closed with the lid 6. In addition, you may make it install the lid | cover 6 after filling the mortar 5 in the post process mentioned later. In this case, it is desirable to prevent the mortar 5 from entering from the opening above the standpipe 4 when the mortar 5 is filled into the cylindrical portion 52.

  Subsequently, as shown in FIG. 7B, the mortar 5 is filled into the cylindrical portion 52. Specifically, the mortar 5 is filled into a space partitioned by the vertical pipe 4 and the inner peripheral surface of the cylindrical portion 52. Thereby, the mortar 5 will contact the damaged part A of the cylindrical part 52, specifically, the left end of the damaged part A of FIG.7 (b). The mortar 5 may be filled so that the upper surface of the mortar 5 is substantially flush with the upper surface of the lid 6 and the upper end surface of the upper member 53. The space may be filled with a liquid curable injecting material before filling with the mortar 5. As described above, the repair of the damaged portion A of the cylindrical portion 52 is completed.

  As described above, in the present embodiment, since the mortar 5 is filled in the space partitioned by the inner peripheral surface of the cylindrical portion 52 and the vertical pipe 4, the cylindrical portion 52 is not affected by the damaged portion or the deteriorated portion. The part 52 can be repaired. In addition, a relatively easy operation of inserting the first annular member 2 and the standpipe 4 into the cylindrical portion 52 is sufficient, and an operation with a large work load of driving a member such as an anchor bolt into the cylindrical portion 52 is not necessary. . Thereby, the cylinder part 52 in which the protruding part is not formed in the inside can be easily repaired. By the above repair, the drainage in the cylindrical part 52 is prevented from leaking to the outside, and the water outside the cylindrical part 52 is prevented from entering the cylindrical part 52 from the damaged part. It is also possible to prevent a tree root or the like outside the cylindrical portion 52 from entering the cylindrical portion 52 from the damaged portion.

  According to the present embodiment, the first annular member 2 includes the inclined lower surface 2a having the same inclination as the first inclined upper surface 55a1 of the first invert forming portion 55a and the second inclined upper surface 55b1 of the second invert forming portion 55b. ing. Thereby, the adhesiveness of the 1st annular member 2 with respect to the invert 55 can be improved. Thereby, the first annular member 2 is stably supported by the invert 55. In particular, when one or a plurality of second annular members 3 are stacked above the first annular member 2, it is more desirable to adopt this aspect.

  Further, according to the present embodiment, the cutout portion 11 is disposed on the invert flow path 56 with the first annular member 2 inserted. Thereby, interference of the 1st annular member 2 with respect to the invert flow path 56 and the flow path above it can be eliminated. That is, the first annular member 2 can be arranged so as not to block the invert flow path 56 and the flow path above it.

  Moreover, according to this embodiment, the 1st annular member 2 is provided with the upper surface 2b formed horizontally while supporting the standing pipe 4. As shown in FIG. Thereby, the load of the standpipe 4 and the load of the mortar 5 can be uniformly dispersed in the first annular member 2. Thereby, it is possible to prevent fatigue failure from occurring in the first annular member 2.

  Although the repair member 1 according to the first embodiment has been described above, the repair member according to the present invention is not limited to that of the first embodiment, and can be implemented in various other forms. Hereinafter, a second embodiment will be described. In the following, the same reference numerals are used for the same components as those already described, and the description thereof is omitted.

  As shown in FIG. 8, the repair member 1 a of the second embodiment is different from the repair member 1 of the first embodiment in that one or a plurality of second annular members 3 are arranged in the cylindrical portion 52. . Other points are the same as in the first embodiment. The second annular member 3 is stacked on the support member 41 of the standpipe 4. When one second annular member 3 is used, the second annular member 3 is stacked on the support member 41 of the standpipe 4. On the other hand, as shown in FIG. 8, when three second annular members 3 a, 3 b, 3 c are used as the second annular member 3, the second annular member 3 a is stacked on the support member 41 of the standpipe 4. The second annular member 3b is stacked on the second annular member 3a, and the second annular member 3c is stacked on the second annular member 3b.

  The second annular member 3a and the second annular members 3b and 3c have basically the same structure. As shown in FIGS. 9B and 10B, the second annular members 3b and 3c are different from the second annular member 3a in that a recess 22 is provided. The second annular member 3b and the second annular member 3c have the same structure. Below, the 2nd annular member 3a is demonstrated and only the recessed part 22 which is a different point from the 2nd annular member 3a is demonstrated about the 2nd annular members 3b and 3c.

  The second annular member 3a is formed by resin molding. If resin is used, it will be easy to mold. As shown to Fig.9 (a), the 2nd annular member 3a should just have the external shape along the internal peripheral surface of the cylinder part 52 (refer FIG. 8). The second annular member 3a is formed in an annular shape. The thickness of the second annular member 3a may be thin. Specifically, the thickness of the second annular member 3 a may be smaller than the thickness of the cylindrical portion 52. The outer diameter of the second annular member 3 a is formed smaller than the inner diameter of the cylindrical portion 52. A third hole 20 is formed in the center of the second annular member 3a. The second annular member 3a includes an annular convex portion 21 on the upper surface thereof. The convex portion 21 is coaxial with the third hole portion 20 and is formed outside the third hole portion 20 in the radial direction of the third hole portion 20. The convex portion 21 is formed in a tapered shape that tapers toward the upper side in the installed state. Specifically, the convex portion 21 is formed in a trapezoidal cross section, for example. Here, the strength of the first annular member 2 is preferably higher than the strength of the second annular member 3. As a material of the second annular member 3, for example, a foamed resin can be used. More specifically, a polypropylene resin can be used as the material of the second annular member 3. However, the material of the second annular member 3 is not limited to the above.

  As shown in FIG. 10B, the second annular members 3b and 3c are provided with an annular recess 22 on the lower surface thereof. The recess 22 is coaxial with the third hole 20 and is formed outside the third hole 20 in the radial direction of the third hole 20. The concave portion 22 is formed in a tapered shape that tapers toward the upper side in the installed state. Specifically, the recess 22 is formed in a trapezoidal cross section, for example. In such a configuration, when the second annular member 3b is stacked on the second annular member 3a, the convex portion 21 of the second annular member 3a is fitted into the concave portion 22 of the second annular member 3b. In this case, with the second annular member 3b stacked on the second annular member 3a, the peripheral wall of the third hole 20 of the second annular member 3a and the peripheral wall of the third hole 20 of the second annular member 3b. Is almost the same. The same applies to the case where the second annular member 3c is stacked on the second annular member 3b.

  Next, the repair procedure using the repair member 1a of the second embodiment will be described. In addition, it is the same as the repair procedure which concerns on 1st Embodiment except the point which arrange | positions the 2nd annular member 3 after arrange | positioning the standing pipe 4, before installing the lid | cover 6, and before filling the mortar 5. Therefore, only the arrangement of the second annular member 3 will be described below.

  As described in the first embodiment, after the vertical tube 4 is arranged in the cylindrical portion 52, the cylindrical body 40 of the vertical tube 4 is inserted into the third hole portion 20 of the second annular member 3a as shown in FIG. In this state, the second annular member 3 a is inserted below the cylindrical portion 52. Then, the second annular member 3 a is disposed on the support portion 43 of the support member 41. In this case, the second annular member 3a may be inserted so that the central axis of the second annular member 3a and the central axis of the standpipe 4 overlap. At this time, the cylindrical portion 42 of the support member 41 is inserted into the third hole 20 of the second annular member 3a. Next, the second annular member 3b is inserted below the cylindrical portion 52 in a state where the cylindrical body 40 is inserted through the third hole portion 20 of the second annular member 3b. And the 2nd annular member 3b is arrange | positioned on the 2nd annular member 3a in the state which made the recessed part 22 of the 2nd annular member 3b fit the convex part 21 of the 2nd annular member 3a. At this time, the peripheral wall of the 3rd hole part 20 of the 2nd annular member 3a and the peripheral wall of the 3rd hole part 20 of the 2nd annular member 3b become substantially flush. Next, similarly, the second annular member 3c is stacked on the second annular member 3b. According to the second embodiment, in addition to the same effects as the first embodiment, by arranging one or a plurality of second annular members 3, the inner peripheral surface of the cylindrical portion 52 and the vertical pipe 4 The partitioned space can be reduced. Thereby, the quantity of the mortar 5 with which the space is filled can be reduced. Thereby, the construction period can be shortened. Moreover, since the quantity of the mortar 5 can be reduced as mentioned above, it can suppress that the crack resulting from hardening of the said mortar 5 after a construction generate | occur | produces on the ground surface.

  Moreover, according to this embodiment, the recessed part 22 of the 2nd annular member 3b fits into the convex part 21 of the 2nd annular member 3a, and the recessed part 22 of the 2nd annular member 3c is the convex part 21 of the 2nd annular member 3b. Is fitted. Accordingly, the second annular member 3b can be stably stacked on the second annular member 3a, and the second annular member 3c can be stably stacked on the second annular member 3b. Further, misalignment of the second annular member 3b with respect to the second annular member 3a can be prevented, and misalignment of the second annular member 3c with respect to the second annular member 3b can be prevented.

  Moreover, according to this embodiment, the convex part 21 of the 2nd annular member 3a, the recessed part 22 and the convex part 21 of the 2nd annular member 3b are formed in the taper shape which tapers off toward the upper direction in the installed state. Has been. Accordingly, the second annular member 3b can be easily stacked on the second annular member 3a, and the second annular member 3b can be easily detached from the second annular member 3a. In addition, the second annular member 3c can be easily stacked on the second annular member 3b, and the second annular member 3c can be easily detached from the second annular member 3b.

  Although the first embodiment and the second embodiment have been described above, the following modification may be applied to the present invention.

  In the said embodiment, although mortar was used as a filler, it is not limited to this. Instead of mortar, other materials such as concrete may be filled. In this case, the cost of concrete can be reduced compared to mortar.

  In the above embodiment, the three second annular members 3 are arranged in the cylindrical portion 52, but the present invention is not limited to this. The second annular member 3 may not be disposed, and the amount of the mortar 5 to be filled may be further reduced by disposing four or more second annular members 3.

  In the said embodiment, the cylindrical part 52 which is the existing pipe line of the underground drainage facility 100 was repaired using the repair members 1 and 1a. However, the existing pipeline to be repaired is not limited to the cylindrical portion 52. For example, the existing pipeline to be repaired may be a pipe extending in the horizontal direction or a pipe inclined from the horizontal direction. For example, the existing pipe line to be repaired may be an existing pipe that extends laterally, such as an inflow pipe or an outflow pipe that is increasingly connected.

  In the above embodiment, the 50 cylindrical portions 52 are repaired by the repair members 1 and 1a, but the present invention is not limited to this. The manhole may be repaired by the repair members 1 and 1a.

  In the said embodiment, the convex part 21 of the 2nd annular member 3a and the recessed part 22 of the 2nd annular member 3b fitted to this, and the convex part 21 of the 2nd annular member 3b, and the 2nd annular member fitted to this Although the concave portions 22 of 3c are each annular, it is not limited to this. For example, these may be arcuate in a plan view, or may be other shapes such as a circle or a rectangle in a plan view.

  In the said embodiment, although the shape of the 1st annular member 2 and the 2nd annular member 3 was made into the annular | circular shape, it is not limited to this. If it is annular, the shape of the first annular member 2 and the second annular member 3 may be, for example, a rectangular ring.

  In the above embodiment, one first annular member 2 is arranged on the invert 55, but the present invention is not limited to this. Two or more first annular members 2 may be stacked on the invert 55.

  In the above embodiment, the standpipe 4 is arranged so that the center axis of the standpipe 4 and the center axis of the first annular member 2 overlap, and the center axis of the second annular member 3a and the center axis of the standpipe 4 overlap. Although the second annular member 3a is arranged as described above, the present invention is not limited to this. If the first hole 10 of the first annular member 2 and the second hole 45 of the standpipe 4 communicate with each other, these need not be provided coaxially. Moreover, if the standpipe 4 is penetrated by the 3rd hole 20 of the 2nd annular member 3a, it is not necessary to provide these coaxially.

  In the said embodiment, although the invert flow path 56 showed the example extended linearly, the invert flow path may be bent. Specifically, the invert channel may be bent at 90 °, for example. Moreover, the inflow port 57 and the outflow port 58 are not limited to one each, and for example, two inflow ports and one outflow port may be provided. In this case, an inverted flow path corresponding to two inlets and one outlet is formed.

1, 1a Repair member 2 First annular member 2a Inclined lower surface of first annular member 2b Upper surface of first annular member 3 Second annular member 4 Stand pipe 5 Mortar (filler)
6 Lid 10 First hole portion 11 Notch portion 20 Third hole portion 21 Convex portion 22 Recess portion 40 Tubular body 41 Support member 44 Seal member 45 Second hole portion 50 Mass 52 Tube portion 55 Invert 55a First invert forming portion 55a1 First 1 inclined upper surface 55b second invert formation part 55b1 second inclined upper surface 100 underground drainage facility

Claims (9)

A cylindrical portion having an opening on the upper side and having an inflow port and an outflow port on the side, and a long groove-shaped invert channel formed inside the tubular portion and provided from the inflow port toward the outflow port. A repair member for repairing a manhole or a burial buried in the ground and having a formed invert,
It is formed in an annular shape, has a first hole in the center, has an outer diameter smaller than the inner diameter of the cylinder, and is formed in the cylinder so that the first hole is positioned on the invert channel. A first annular member to be inserted;
A cylinder having a second hole, and a flexible member that is disposed along the periphery of the outer peripheral surface of the cylinder, protrudes radially outward from the cylinder, and has an outer diameter larger than the inner diameter of the cylinder. A sealing member that protrudes radially outward from the cylindrical body next to the sealing member, the protruding length is shorter than the protruding length of the sealing member, and the sealing member extends in the axial direction of the cylindrical body. A support member that supports the seal member when bent, and a standpipe disposed on the first annular member so that the second hole portion is positioned on the first hole portion;
A filler filled in a space partitioned by the inner peripheral surface of the cylindrical portion and the vertical pipe;
A cylindrical member repairing member, comprising: a lid that covers an opening above the cylindrical body.   An annularly formed third hole portion into which the cylinder of the standing tube is inserted has an outer diameter smaller than an inner diameter of the tube portion, and the tube of the standing tube is formed in the third hole portion. The cylinder repair member according to claim 1, further comprising one or a plurality of second annular members stacked on the support member of the vertical pipe in a state where a body is inserted. An annularly formed third hole portion into which the cylinder of the standing tube is inserted has an outer diameter smaller than an inner diameter of the tube portion, and the tube of the standing tube is formed in the third hole portion. Further comprising first and second second annular members stacked on the support member of the standpipe with the body inserted;
A convex part is formed on the upper part of each second annular member, and a concave part is formed on the lower part of each second annular member,
The standing tube wherein on the support member first of the second annular member is disposed of, the second of the second annular member are stacked on the first of the second annular member,
Wherein the convex portion of the first second annular member, the second is fitted in the recess of the second annular member, the repair section of the cylindrical portion of claim 1. The said convex part and the said recessed part of each said 2nd annular member are the cylindrical parts of Claim 3 currently formed in the taper shape which tapes off toward the upper direction in the state in which the said 2nd annular member is arrange | positioned. Repair parts. The invert includes an inclined upper surface that supports the first annular member,
The said 1st annular member is a repair member of the cylinder part of any one of Claims 1-4 which contacted the said inclined upper surface of the said invert, and was provided with the inclined lower surface of the same inclination as the said inclined upper surface. The first annular member includes a notch portion in which an outer peripheral surface of the first annular member is cut out in a radial direction and formed in a semicircular shape in a side view,
The cylindrical cutout member according to any one of claims 1 to 5 , wherein the notch is disposed on the invert channel. The said 1st annular member is a repair member of the cylinder part of any one of Claims 1-6 provided with the upper surface formed horizontally while supporting the said standing pipe. A cylindrical portion having an opening on the upper side and having an inflow port and an outflow port on the side, and a long groove-shaped invert channel formed inside the tubular portion and provided from the inflow port toward the outflow port. An underground drainage facility comprising a mast or manhole embedded in the ground and formed, and a repair member for repairing the mast or the manhole,
The repair member is
It is formed in an annular shape, has a first hole in the center, has an outer diameter smaller than the inner diameter of the cylinder, and is formed in the cylinder so that the first hole is positioned on the invert channel. A first annular member to be inserted;
A cylinder having a second hole, and a flexible member that is disposed along the periphery of the outer peripheral surface of the cylinder, protrudes radially outward from the cylinder, and has an outer diameter larger than the inner diameter of the cylinder. A sealing member that protrudes radially outward from the cylindrical body next to the sealing member, the protruding length is shorter than the protruding length of the sealing member, and the sealing member extends in the axial direction of the cylindrical body. A support member that supports the seal member when bent, and a standpipe disposed on the first annular member so that the second hole portion is positioned on the first hole portion;
A filler filled in a space partitioned by the inner peripheral surface of the cylindrical portion and the vertical pipe;
An underground drainage facility, comprising: a lid that covers an opening above the cylindrical body. A cylindrical portion having an opening on the upper side and having an inflow port and an outflow port on the side, and a long groove-shaped invert channel formed inside the tubular portion and provided from the inflow port toward the outflow port. A repair method for repairing a manhole or a burial buried in the ground and having a formed invert,
A first annular member that is formed in an annular shape and has a first hole at the center and an outer diameter smaller than the inner diameter of the cylindrical portion is arranged so that the first hole is positioned on the invert channel. Inserting into the tube portion;
A cylinder having a second hole, and a flexible member that is disposed along the periphery of the outer peripheral surface of the cylinder, protrudes radially outward from the cylinder, and has an outer diameter larger than the inner diameter of the cylinder. A sealing member that protrudes radially outward from the cylindrical body next to the sealing member, the protruding length is shorter than the protruding length of the sealing member, and the sealing member extends in the axial direction of the cylindrical body. Placing a standpipe having a support member that supports the seal member when bent on the first annular member such that the second hole is located on the first hole;
Arranging a lid so as to cover the opening above the cylindrical body;
Filling the space partitioned by the inner peripheral surface of the cylinder part and the vertical pipe with a filler.

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