JP5739781B2 - Public rehabilitation member and public rehabilitation method - Google Patents

Description

  The present invention relates to a public rehabilitation member and a public rehabilitation method that make it possible to rehabilitate a public wall with little reduction in volume.

  In public sewers, inspection dredging is provided at the boundary between residential land and public land.

  And when such an existing public pit becomes obsolete, it is necessary to excavate the ground and replace the public pit with a new one (open-cut method), but it is difficult to excavate the ground due to ground conditions, etc. However, it is necessary to rehabilitate the existing public fence without extending the ground to extend the life. Such public fence rehabilitation means includes a method of attaching a public rehabilitation member inside the public fence (non-open cutting method).

  Such rehabilitation means for public fences are disclosed in Patent Documents 1 to 3, and the like.

Japanese Patent No. 3448034 Japanese Patent No. 4132955 Japanese Patent No. 4219074

  However, in the public fence rehabilitation means described in the above patent documents, there is a problem that the capacity of the public fence after rehabilitation becomes extremely small. In addition, when the public rehabilitation member is larger than the upper opening of the public reed, it is necessary to excavate the upper opening and its surroundings in order to put the public rehabilitation member into the public reed. There was a problem. Furthermore, when the position of the sewage inlet to the public basin is different from the usual, there is a problem that a member for corresponding to the position of the inlet is required separately.

In order to solve the above problems, the present invention provides:
At least an invert portion on the bottom surface, a rising tube portion that rises in a cylindrical shape from a peripheral portion of the invert portion, a slant wall portion that extends upward while reducing the diameter from the upper end portion of the rising tube portion, A public wall rehabilitation member for rehabilitating an existing public wall provided on the upper side of the inclined wall part and having an upper opening having a smaller diameter than the invert part,
An invert part rehabilitation member capable of rehabilitating the invert part mainly, and a rising pipe part rehabilitation member mainly rehabilitating the riser pipe part, respectively,
The invert part rehabilitation member has a planar shape that is approximately the same size as the invert part or slightly smaller than the invert part,
The shape can be changed to a size that can be inserted from the upper opening, and the shape can be returned to a size that can substantially cover the invert portion.
The rising pipe part rehabilitation member is configured by a sheet-like member that can be rolled up and inserted from the upper opening, and can cover the inner surface of the rising pipe part by spreading .
The invert portion renovation member is configured by a deformation return member that can be deformed to a size that can be inserted from the upper opening and can return to a size that can substantially cover the invert portion,
The invert part has an invert groove inclined downward toward the outlet of the public fence, and an inclined surface part inclined downward toward the invert groove,
The invert part retreading member has a deformation return part that can be deformed and returned around a boundary part between the invert groove and the inclined surface part .

  According to the present invention, the following effects can be obtained by the above-described configuration. That is, it is possible to reduce the cost by reducing the number of parts and reduce the number of assembling steps and easily rehabilitate the public fence. In addition, it is possible to rehabilitate public dredging with almost no decrease in volume, and it is necessary to excavate the upper opening and the slant wall in order to put the invert part rehabilitation member and the rising pipe rehabilitation member inside. Can be eliminated. Furthermore, even when the position of the inlet with respect to the public fence is different from the usual, it is possible to cope directly by drilling a position corresponding to the inlet of the rising pipe portion rehabilitation member.

It is side sectional drawing of a public fence. It is side sectional drawing which shows the state which attached the public fence restoration member concerning Example 1 of this invention to the public fence of FIG. It is the fragmentary sectional view which looked at FIG. 2 from the outflow port side. It is a perspective view of the invert part renovation member of FIG. It is a perspective view which shows the state which folded the invert part renovation member of FIG. It is a figure which shows the state which inserted the inverted invert part renovation member from the upper opening part. It is a figure which shows the state which expands the inserted invert part renovation member inside a public fence. FIG. 3 is a perspective view of the rising pipe portion rehabilitation member of FIG. 2. It is a figure which shows the state which rolls up the rising pipe part renovation member of FIG. 8, and inserts from an upper opening part. It is a figure which shows the state in the middle of expanding the rounded rising pipe part renovation member inside a public fence. It is a figure which shows the state which expanded the rounded up pipe part renovation member inside the public fence. It is a bottom view of the invert part renovation member which shows the hinge part as a deformation | transformation return part. It is a bottom view of the invert part renovation member which shows the elastic connection member as a deformation | transformation return part. It is side sectional drawing of the invert part renovation member which shows the deformable shape part as a deformation | transformation return part. It is a sectional side view of the invert part renovation member which shows the resin hinge as a deformation | transformation return part. It is a figure which shows the balloon-shaped member in a backing material injection | pouring process. It is a figure which shows the clearance gap which inject | pours the backing material in a backing material injection | pouring process. It is the disassembled perspective view which shows the invert part renovation member concerning Example 2, (a) is an inflow port side part, (b) is an outflow port side part. It is a figure which shows the inflow port side part of FIG. 18, (a) is the side view seen from the outer side, (b) is a top view, (c) is the side view seen from the inner side. It is a figure which shows the outflow port side part of FIG. 18, (a) is the side view seen from the inner side, (b) is a top view, (c) is the side view seen from the outer side. It is a perspective view which shows the state which forms a pipe opening in the field at the inflow port side part of FIG. It is the disassembled top view which shows the invert part renovation member concerning the modification of Example 2, (a) is an inflow port side part, (b) is an outflow port side part. (A) is the side view which looked at the inflow port side part from the inside, (b) is the side view which looked at the outflow port side part from the outside.

  In public sewers, a public dredge for inspection is provided at the boundary between the residential land and the public land.

  And when such an existing public pit becomes obsolete, it is necessary to excavate the ground and replace the public pit with a new one (open-cut method), but it is difficult to excavate the ground due to ground conditions, etc. However, it is necessary to rehabilitate the existing public fence without extending the ground to extend the life. Such public fence rehabilitation means includes a method of attaching a public rehabilitation member inside the public fence (non-open cutting method).

  The present invention relates to the non-cutting method described above.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments embodying the present invention will be described below in detail with reference to the drawings.

  1 to 17 show the first embodiment and its modifications.

  <Configuration> The configuration will be described below.

  First, FIG. 1 is a side sectional view of a public fence 1. The public fence 1 is buried in the boundary portion (the public land 3 side) between the residential land 2 and the public land 3. Around the bottom of the public dredger 1, an inflow port 5 to which the sewage inflow pipe 4 from the residential land 2 side is connected and an outflow port 7 to be connected to the sewage outflow pipe 6 on the public land 3 side are provided. Note that the inflow port 5 may be provided at a position (height) different from this figure depending on the situation on the residential land 2 side. About the outflow port 7, it is provided in the position of this figure uniformly.

  Such public fence 1 is reduced in diameter from at least the invert portion 11 on the bottom surface, the rising tube portion 12 rising in a cylindrical shape from the peripheral portion of the invert portion 11, and the upper end portion of the rising tube portion 12. The slant wall 13 extends upward, and the upper opening 14 is provided above the slant wall 13 and has a smaller diameter than the invert part 11. A lid member 15 is detachably attached to the upper opening 14. The invert part 11, the rising pipe part 12, the inclined wall part 13, and the upper opening part 14 are independent block-like members made of concrete (inverted part constituting member, rising pipe constituting member, inclined wall part constituting member, The public fence 1 is comprised by stacking these in the up-down direction. In addition, about the riser pipe | tube structural member which comprises the riser pipe part 12, it is a 2 step | paragraph structure, However, A single | single stage or 3 steps | paragraphs or more may be sufficient. In this case, at least the invert portion 11 and the rising tube portion 12 are circular in plan view. In addition, the inclined wall portion 13 and the upper opening portion 14 may be circular in plan view or rectangular.

  In addition to the basic configuration as described above, the present embodiment has the following configuration.

  When the existing public fence 1 is aged, the public fence 1 can be rehabilitated by using the public rehabilitation member 21 as shown in FIGS. The public rehabilitation member 21 is made of resin. Examples of the resin used for the public rehabilitation member 21 include vinyl chloride resin.

(Configuration 1-1) Regarding the public rehabilitation member 21 First, the public rehabilitation member 21 includes an invert part rehabilitation member 22 that can rehabilitate the invert part 11 and a rising pipe part rehabilitation member that can rehabilitate the rising pipe part 12. 23 are provided separately.

And the invert part renovation member 22 shall have a planar shape substantially the same size as the invert part 11, or a little smaller than the invert part 11, as shown in FIG.
As shown in FIGS. 5 to 7, the invert portion renovation member 22 can be changed in size to be insertable from the upper opening portion 14 (see FIG. 2, the same applies hereinafter), and can substantially cover the invert portion 11. It is comprised by the invert part renovation member in which a form change which can be returned to a magnitude | size is possible.
On the other hand, as shown in FIGS. 8 to 11, the rising pipe portion rehabilitation member 23 can be rolled up and inserted from the upper opening portion 14 (see FIG. 9, the same applies hereinafter). It shall be possible to almost cover the inner surface. The rising pipe portion rehabilitation member 23 is constituted by a sheet-like member 25.

  Here, the sheet-like member 25 is preferably not a thin member that can be easily folded, but a relatively thick member that has flexibility and a self-holding property that can be rolled or expanded ( A few millimeters or more).

(Configuration 1-2)
The invert portion renovation member 22 (invertable portion renovation member that can be changed in form) is configured by a deformation return member 24 that can be deformed into a size that can be inserted from the upper opening 14 and can be returned to a size that can substantially cover the invert portion 11. To do.

Here, the deformation of the invert portion retreading member 22 is, for example, folding or bending as will be described later.
Moreover, since the invert part 11 inclines in the downward slope toward the outflow port 7 so that it may mention later, in connection with this, the sheet-like member 25 used as the rising pipe part renovation member 23 also has a lower edge part. It is assumed that it is cut obliquely in accordance with the inclination of the invert part 11.

(Structure 1-3) About the deformation | transformation return part 26 As shown in FIG. 3, the above-mentioned invert part 11 has the invert groove | channel 11a which inclines in a downward slope toward the outflow port 7, and a downward slope toward this invert groove 11a. And an inclined surface portion 11b which is inclined in the direction.

  In accordance with the shape of the invert portion 11, the invert portion rehabilitation member 22 (deformation return member 24) has a deformation return portion 26 that can be deformed and returned around the boundary portion between the invert groove 11a and the inclined surface portion 11b. And

  Here, the details of the general invert portion 11 will be described. The invert groove 11 a extends in the diameter direction of the invert portion 11. The invert groove 11a has a substantially semicircular groove cross section. Moreover, the inclined surface part 11b shall be located in the both sides of the invert groove 11a. The inclined surface portion 11b is a flat inclined surface having a substantially arc surface shape in a plan view having an arc-shaped edge portion along the peripheral edge portion of the invert portion 11 and a linear edge portion along the side edge portion of the invert groove 11a. It is said.

Therefore, the invert part renovation member 22 also has an invert groove renovation part 22a for rehabilitating the invert groove 11a and an inclined surface part renovation part 22b for rehabilitation of the inclined surface part 11b.
Similarly to the invert groove 11a, the invert groove renovation part 22a also has a substantially semicircular groove cross section extending in the diameter direction of the invert part 11. The invert groove renovation part 22a is installed on the upper side of the invert groove 11a.
In addition, the inclined surface portion renovation portion 22b is located on both sides of the invert groove renovation portion 22a and has an arcuate edge portion and a straight edge portion, as in the inclined surface portion 11b. It is considered to be an inclined surface. The inclined surface part renovation part 22b is installed on the upper side of the inclined surface part 11b.

  And the above-mentioned deformation | transformation return part 26 is provided partially or entirely in the position of the boundary line of the side part of the invert groove renovation part 22a, and the edge part of the inclined surface part renovation part 22b.

  The invert portion rehabilitation member 22 is functionally and structurally self-shaped so that it does not easily float or deform when the backing material to be described later is injected. preferable. For this reason, it is preferable that the deformation return portion 26 does not impair the self-retaining property of the invert portion renovation member 22.

  Hereinafter, a specific example of the deformation return unit 26 will be described.

  First, the deformation return part 26 can be provided with respect to what comprised the invert groove renovation part 22a and the inclined surface renovation part 22b by another part. In this case, as shown in FIG. 12, the deformation return part 26 can be a hinge member 26a that can connect the inverted groove renewal part 22a and the inclined surface renewal part 22b.

  The hinge member 26a can be made of metal or resin. As the hinge member 26a, a fixed hinge, a pulling hinge, or the like can be used. The hinge member 26a is partially provided at the position of the boundary line between the invert groove renovation part 22a and the inclined surface renovation part 22b (such as the back side or the front side). When the deformation return portion 26 is the hinge member 26a, a sealing material such as a seal tape 27 is pasted along the boundary line between the inverted groove renewal portion 22a and the inclined surface renewal portion 22b (on the back side or the front side). It is preferable that the gap can be sealed. In addition, the gap formed between the invert groove renovation part 22a and the inclined surface part renewal part 22b can be secured by being filled with an adhesive, a filler, a bonding agent, or the like after being installed on the invert part 11.

  In addition, when the invert groove renovation part 22a and the inclined surface part renewal part 22b are provided as separate parts, in addition to the above, as shown in FIG. It can be set as the elastic connection member 26b etc. which can couple | bond between the part 22a and the inclined surface part renovation part 22b. As the elastic connecting member 26b, a flexible rubber-based material can be used. The elastic connecting member 26b as the deformation return portion 26 is provided generally along the boundary line between the invert groove renovation portion 22a and the inclined surface portion renewal portion 22b, and is formed between the invert groove renovation portion 22a and the inclined surface portion renewal portion 22b. It has a function of sealing the gap. The elastic connection member 26b can be provided between the invert groove renovation part 22a and the inclined surface renovation part 22b by, for example, adhesion or insert molding.

  On the other hand, the deformation return part 26 can be provided with respect to what comprised the invert groove renovation part 22a and the inclined surface renovation part 22b by integral components, for example. In this case, as shown in FIG. 14, the deformation return portion 26 can be a deformable shape portion 26c integrally formed between the invert groove renewal portion 22a and the inclined surface renewal portion 22b. The deformable shape portion 26c as the deformation return portion 26 is provided generally along the boundary line between the invert groove renovation portion 22a and the inclined surface renewal portion 22b. The deformable shape portion 26c uses the deformability generated by the downward detour shape. The deformable shape portion 26c can be formed in a single stage or multiple stages. The irregularities on the surface of the deformable shape portion 26c can be filled with an adhesive, a filler, a bonding agent, or the like after installation on the invert portion 11 in order to prevent clogging of dirt and the like.

  Further, in the case where the invert groove renovation part 22a and the inclined surface renovation part 22b are provided as a single component, in addition to the above, as shown in FIG. It can be set as the resin hinge 26d integrally formed between the part 22a and the inclined surface part renovation part 22b. The resin hinge 26d as the deformation return portion 26 is provided entirely along the boundary line between the inverted groove renewal portion 22a and the inclined surface renewal portion 22b. The resin hinge 26d uses the deformability caused by the thinning. The resin hinge 26d is preferably formed in a recessed manner on the back surface side (lower surface side) of the invert portion renovation member 22. Thereby, the unevenness | corrugation of the surface side (upper surface side) can be eliminated and it can be set as a smooth shape.

  Further, although not particularly illustrated, the deformation return portion 26 may be a combination of the deformable shape portion 26c and the resin hinge 26d.

(Structure 1-4) About the lower accommodating part 22c and the side edge accommodating part 23a As shown in FIG. 4, the invert part renovation member 22 is made into at least one part of a peripheral part, and the lower end part of the standing pipe part renovation member 23 It is assumed that a lower housing portion 22c capable of housing and holding the housing is provided.

  Moreover, as shown in FIG. 8, the rising pipe part renovation member 23 shall have the side edge part accommodating part 23a which can accommodate and hold the other side edge part in one side edge part.

  Here, the lower housing part 22 c is an assembly part between the invert part renovation member 22 and the riser pipe renewal member 23. The lower housing portion 22c is a rising wall that rises from the arcuate edge of the inclined surface portion renovation portion 22b. The lower housing portion 22 c is an overlapping portion that overlaps with the lower edge portion of the rising pipe portion rehabilitation member 23.

  Moreover, the side edge part accommodating part 23a becomes an assembly part of the rising pipe part renovation member 23 itself. This side edge part accommodating part 23a makes the standing pipe part renovation member 23 self-hold cylindrical. The side edge portion accommodating portion 23 a is a bifurcated insertion portion provided on one side edge portion of the rising pipe portion rehabilitation member 23. This bifurcated insertion part may be formed integrally with one side edge part of the riser part rehabilitation member 23, or a separate edge member may be attached by bonding or bolts. good.

(Configuration 1-5) Anchor portion 28 As shown in any of FIGS. 12 to 15, the surface of the invert portion renovating member 22 on the invert portion 11 side, or the rising tube portion of the rising tube portion renewal member 23. At least one of the 12 side surfaces bites into a backing material injected between the invert portion 11 and the invert portion renewal member 22 or between the rising pipe portion 12 and the rising pipe portion renewal member 23. An anchor portion 28 that can be held is provided.

  Here, the anchor portion 28 may have a simple protrusion shape, but preferably has a hook shape or a return shape that can be locked to the backing material. For example, as shown in FIG. 14, an upright portion 28a that rises substantially perpendicular to the surfaces of the invert portion renewal member 22 and the riser tube portion renewal member 23, and extends in a direction substantially orthogonal to the upright portion 28a. An inverted T-shape or L-shape having a laterally extending portion 28b can be used. However, the shape of the anchor portion 28 and the protruding angle of the laterally protruding portion 28b with respect to the upright portion 28a are not limited to this.

  For example, as shown in FIG. 12, such an anchor portion 28 may be arranged so as to be radial with respect to the inclined surface portion renewal portion 22 b with reference to the center of the invert portion renovation member 22. As shown, it may be arranged so as to be perpendicular to the side edge of the invert groove renewal portion 22a with respect to the inclined surface renovation portion 22b.

In addition, between the invert part renovation member 22 and the invert part 11, and between the riser pipe part renovation member 23 and the riser pipe part 12, the clearance S (which is necessary for the injection of the backing material partially or entirely is provided. A gap for filling the backing material (see FIGS. 2 and 3) is formed. In this case, the gap S is hardly formed between the invert groove renovation portion 22a and the invert groove 11a. In addition, the gap S is hardly formed between the inclined surface portion renovation portion 22b and the inclined surface portion 11b, or a relatively small gap S is formed. A relatively largest gap S is formed between the rising pipe portion rehabilitation member 23 and the rising pipe portion 12. The gap S is not limited to this. Moreover, mortar etc. are used for a backing material, for example.

(Configuration 1-6) About public rehabilitation method Public rehabilitation 1 is rehabilitated by the following public rehabilitation method using public rehabilitation member 21 described above.

  That is, first, as shown in order in FIGS. 4 to 7, it has a planar shape that is almost the same size as the invert portion 11 on the bottom of the public fence 1 or slightly smaller than the invert portion 11, and is configured by an invert portion renovating member that can be reconfigured. The inverted part rehabilitation member 22 is changed in form and inserted into the inside from the upper opening 14 of the public fence 1 (see, for example, FIG. It installs so that the part 11 may be covered substantially (invert part renovation member installation process).

  Next, as shown in order in FIGS. 8 to 11, after the rising pipe portion rehabilitation member 23 configured by the sheet-like member 25 is rolled and inserted into the inside from the upper opening portion 14 of the public fence 1, the public fence 1 is expanded so as to cover the inner surface of the rising pipe portion 12 of the public fence 1 (rising pipe portion rehabilitation member installation step).

Finally, as shown in FIGS. 16 to 17, the gap S between the rising pipe portion 12 and the rising pipe portion renewal member 23 and between the invert portion 11 and the invert portion rehabilitation member 22 is backed up. The material is injected, and the rising tube portion renewal member 23 and the invert portion renovation member 22 are fixed to the rising tube portion 12 and the invert portion 11 with a backing material, respectively (backing material injection step).
(Configuration 1-7) More specific public rehabilitation method More specifically, in the invert part rehabilitation member installation step, it is configured by the deformation return member 24 (invert part rehabilitation member whose form can be changed) at the time of form change. After the shape of the invert portion renovation member 22 is deformed and inserted into the inside from the upper opening 14 (for example, see FIG. 2; the same applies hereinafter) of the public fence 1, the deformation return member 24 (form The shape of the invert part renovation member 22 constituted by the changeable invert part renovation member) is returned inside the public fence 1 and installed so as to substantially cover the invert part 11 (invert part renovation member installation process).

  Here, as shown in FIG. 8, prior to the installation of the public rehabilitation member 21, the corresponding notch portions 23 b and openings are located on the rising pipe portion rehabilitation member 23 at the positions of the inlet 5 and the outlet 7 on the site. Provide a part. In addition, since the position is decided about the notch part 23b corresponding to the outflow port 7, you may provide beforehand.

  Moreover, in the above-described invert portion renovation member installation process, if necessary, a gap formed between the invert groove renovation portion 22a and the inclined surface renewal portion 22b, a concave portion of the deformable shape portion 26c, or the like is filled with an adhesive or filling. It may be filled with an agent or a bonding agent.

  And in the above-mentioned rising pipe part renovation member installation process, the lower end part of the rising pipe part rehabilitation member 23 is fitted into the lower housing part 22c of the invert part rehabilitation member 22, and one side of the rising pipe part rehabilitation member 23 is fitted. The other side edge portion is fitted into the side edge portion accommodating portion 23a provided at the edge portion. Further, if necessary, between the lower end portion of the riser portion rehabilitation member 23 and the lower accommodation portion 22c of the invert portion rehabilitation member 22, and the side edge portion accommodation portion 23a of the riser tube portion renewal member 23 and the other. The gap between the side edges may be sealed with an adhesive, a filler, a bonding agent, or the like.

  Furthermore, in the above-described backing material injection step, as shown in FIG. 16, in order to prevent the inlet 5 and the outlet 7 from being filled with the backing material, or in the inlet 5 and the outlet 7. In order to prevent a step in the portion, a balloon-like member 31 called a packer that can be inflated by air is packed. This balloon-like member 31 is squeezed and removed after the backing material is cured. The backing material is injected from the gap S between the riser pipe part 12 and the riser pipe part renewal member 23 so as to go around between the invert part 11 and the invert part rehabilitation member 22. To do.

  <Effect> According to this embodiment, the following effects can be obtained.

(Operational effect 1-1) About change of form of public rehabilitation member 21 By configuring public rehabilitation member 21 with at least two parts, an invert part rehabilitation member 22 and a rising pipe rehabilitation member 23, parts The cost can be reduced by reducing the number of points, and the public fence 1 can be rehabilitated easily by reducing the assembly man-hours.
Further, the invert portion rehabilitation member 22 has a planar shape that is approximately the same size as the invert portion 11 or slightly smaller than the invert portion 11, and can be reshaped to a size that can be inserted from the upper opening 14. It is constituted by an invert section renovating member that can be reverted to a size that can be covered, and the rising pipe section renovating member 23 can be rolled up and inserted from the upper opening 14 and expanded to expand the length of the rising pipe section 12. By comprising the sheet-like member 25 that can substantially cover the inner surface, the public fence 1 can be rehabilitated with almost no reduction in volume, and the inverted part rehabilitating member 22 and the riser pipe rehabilitating. It is possible to eliminate the need for excavating the upper opening 14 and the inclined wall 13 in order to put the member 23 therein. Further, even when the position of the inlet 5 with respect to the public fence 1 is different from the normal position, for example, the position corresponding to the inlet 5 of the rising pipe portion rehabilitation member 23 made of the sheet-like member 25 is deleted. It becomes possible to cope directly by punching.

(Effect 1-2) About the deformation | transformation return member 24 The size which can deform | transform the invert part renovation member 22 (form changeable invert part renovation member) to the magnitude | size which can be inserted from the upper opening part 14, and can substantially cover the invert part 11. By configuring the deformable return member 24 to be able to return to its original shape, the invert portion renewal member 22 can be changed in shape and returned in shape using the deformation and return of the deformable return member 24.

(Effect 1-3) About the deformation | transformation return part 26 The invert part renovation member 22 comprised by the deformation return member 24 is the boundary part of the invert groove 11a and the inclined surface part 11b, or the invert groove renovation part 22a and the inclined surface part renewal. By having the deformation return portion 26 that can be deformed and restored at the boundary portion with the portion 22b, the invert portion renovation member 22 can be deformed functionally and structurally by deforming the deformation return portion 26 at the boundary portion. It becomes possible to return.

(Effect 1-4) About the lower accommodating part 22c and the side edge accommodating part 23a The invert part renovation member 22 is the lower part which can accommodate and hold the lower end part of the rising pipe part renovation member 23 in at least one part of a peripheral part. By having the accommodation part 22c, the invert part renovation member 22 and the rising pipe part renewal member 23 can be simply connected and assembled by the lower accommodation part 22c, and the lower accommodation part 22c is used. It becomes possible to obtain water-stopping performance.

  Further, the rising pipe portion rehabilitation member 23 has a side edge portion accommodating portion 23a capable of accommodating and holding the other side edge portion on one side edge portion, so that one side of the rising pipe portion rehabilitation member 23 is provided. The edge portion and the other side edge portion can be simply connected by the side edge portion accommodating portion 23a, and can be self-held in a cylindrical shape, and the water stopping performance can be achieved by utilizing the side edge portion accommodating portion 23a. It becomes possible to obtain.

(Effect 1-5) About the anchor portion 28 The invert portion 11 is provided on at least one of the surface on the invert portion 11 side of the invert portion renovating member 22 or the surface on the rising tube portion 12 side of the rising tube portion renewal member 23. An anchor portion 28 is provided that can bite and hold the backing material that is injected into the gap S between the upper portion and the invert portion retreading member 22 or between the rising tube portion 12 and the rising tube portion retreading member 23. As a result, the anchor portion 28 is bitten and held by the backing material, so that the invert portion renewal member 22 or the rising pipe portion renewal member 23 is connected to the invert portion 11 and the rising pipe via the backing material. It becomes possible to fix to the part 12 more firmly.

(Function / Effect 1-6) About Public Rehabilitation Method According to the public rehabilitation method of this embodiment, it is possible to obtain the same operational effects as the above-described operational effects 1-1 to 1-5.

  18 to 23 show the second embodiment and its modifications. Note that FIGS. 1 to 3 are also referred to as necessary.

  <Configuration> The configuration will be described below.

  Since this embodiment includes substantially the same configuration as that of the first embodiment, description of the same configuration is omitted. However, with respect to the parts that are omitted from the description, the configuration of the first embodiment is used as the configuration of the first embodiment. In addition, when there exists a structure which is not in Example 1 in this Example, and which is in Example 1 and which is not in this Example 1, it can be mutually applied as much as possible.

(Configuration 2-1) Disassembly / Assembly Member 32 In this embodiment, in the configuration 1-1 of the first embodiment, the following rehabilitation is performed instead of the configuration 1-2.
That is, the invert part renovation member 22 (the form changeable invert part renovation member) can be disassembled into a size that can be inserted from the upper opening 14 of the public fence 1 and can be assembled into a size that can substantially cover the invert part 11. The assembly member 32 is used.

(Configuration 2-2) Splitting of disassembling / assembling member 32 As described above, the invert portion 11 is inclined toward the inflow groove 7a of the public fence 1 and the invert groove 11a is inclined toward the inflow groove 11a. And an inclined surface portion 11b inclined downward.
And the invert part renovation member 22 (disassembly assembly member 32) is at least the inlet side part 32a (inlet side split piece) and the outlet side part 32b (outlet side split piece) with respect to the shape of the invert part 11. ) And divided.

Here, the invert part renovation member 22 can also be divided into three or more. However, the smaller the number of divisions, the more advantageous because it is advantageous to simplify the configuration, facilitate form change or form return, facilitate installation, improve water stoppage, and the like. In this case, it is divided into two. The inlet side portion 32a and the outlet side portion 32b are divided into two along a diameter substantially orthogonal to the invert groove 11a. However, the division shape and division direction of the invert portion renovation member 22 are not limited to this.
Moreover, the division | segmentation part 33 of the invert part renovation member 22 is provided with the union part which can combine both. This union part is, for example, an overlapping part 34 (overlapping union part). The overlapping portion 34 is preferably formed within the thickness range of the invert portion rehabilitation member 22. More preferably, the overlapping portion 34 is formed such that the inlet side portion 32a overlaps the outlet side portion 32b. Therefore, the lower surface side step portion 34a is formed by cutting out the lower surface side of the inlet side portion 32a, and the upper surface side step portion 34b is formed by cutting out the upper surface side of the outlet side portion 32b. Thereby, the division | segmentation part 33 becomes a shape where a normal level | step difference is easy to be formed with respect to a flow direction, when it combines.
The dividing portion 33 may be provided with a lock portion that can fit and fix the inlet side portion 32a and the outlet side portion 32b. The lock portion is composed of, for example, a locking claw protruding downward from the lower surface side step portion 34a and a claw locking hole formed in the upper surface side step portion 34b. Can do.

(Configuration 2-3) About the lower rising wall portion 35 In the configuration 1-4 of the first embodiment, the following is performed.
That is, the invert portion renovation member 22 integrally has a lower rising wall portion 35 that constitutes a lower portion of the rising tube portion 12 at the peripheral portion. And the above-mentioned lower accommodating part 22c shall be provided in the upper edge part of this lower standing wall part 35. As shown in FIG.
A circular pipe port 36 that substantially matches the outflow port 7 is provided in advance at a position corresponding to the invert groove 11 a of the lower rising wall portion 35.

Here, although the lower accommodating part 22c of Example 1 was supposed to be a part of the rising wall part, in this example, the lower rising wall part 35 is the same as that of Example 1. The lower housing portion 22c is slightly raised, and another small lower housing portion 22c is provided on the outer peripheral side thereof.
The above-described tube port 36 is provided in the lower rising wall portion 35 of the outlet side portion 32b. Since the installation positions of the sewage outflow pipe 6 with respect to the invert groove 11a are all constant, the pipe port 36 can be provided in advance at a position corresponding to the invert groove 11a. This pipe port 36 is formed in advance in a size (same or slightly smaller size) corresponding to the sewage outflow pipe 6 (existing pipe port). For this purpose, the lower rising wall portion 35 has a height dimension slightly larger than at least the diameter of the sewage outflow pipe 6. A short cylindrical portion 36a (see FIG. 20) that is continuous with the pipe port 36 (existing pipe port) and is inserted into the sewage outflow pipe 6 is integrally formed in advance on the outer peripheral surface side of the lower rising wall portion 35. Anyway.
On the other hand, as for the inlet side portion 32a, the installation position of the sewage inflow pipe 4 is different depending on the situation at the site, so as shown in FIG. The non-cut shape is formed so that a circular pipe port 37 (on-site cut pipe port) can be formed later. For that purpose, the lower vertical wall portion 35 is set to a height dimension having a height adjustment margin for adjusting the height of at least the circular pipe port 37 (on-site cut-out pipe port). This height adjustment allowance can be set by investigating the installation position of the existing sewage inflow pipe 4. In addition, it is preferable that the lower rising wall part 35 is made into the same height by the inlet side part 32a (inlet side split piece) and the outlet side part 32b (outlet side split piece).

(Configuration 2-4) Modifications When the invert portion renewal member 22 (form changeable invert portion renovation member) is configured by the disassembly and assembly member 32, as shown in FIGS. 22 and 23, the invert groove 11a Even if it has a shape other than a straight line (non-linear invert groove), it can be easily accommodated.
For example, when the invert groove 11a has an L-shaped groove bent at approximately 90 degrees at the intermediate portion (bent invert groove), the invert groove refurbished portion 22a is as illustrated (bent invert groove refurbished portion). 22a). Then, for example, the invert portion renovation member 22 passes through the bent portion of the invert groove 11a (or the invert groove renovated portion 22a), and the inlet side portion 32a and the outlet side along a line that bisects the bent portion. It divides | segments into the part 32b. However, the shape of the invert groove 11a and the shape and direction of division of the invert portion renewal member 22 are not limited to this.

(Configuration 2-5) Specific public rehabilitation method In the public rehabilitation method of Configuration 1-6 of Example 1 above, the method of Configuration 1-7 is replaced with the following.
That is, in the invert part constituent member installation step, the invert part renovation member 22 constituted by the disassembly / assembly member 32 is disassembled when the form is changed, and the invert part constituted by the disassembly / assembly member 32 is returned when the form is restored. The rehabilitation member 22 is assembled integrally.

Here, in assembling the invert portion renewal member 22, the outlet side portion 32b is installed first, and then the inlet side portion 32a is installed. At this time, the dividing portion 33 is configured so that the inlet side portion 32a overlaps the outlet side portion 32b. When the lock portion is provided, the locking claw of the lower surface side step portion 34a is fitted and locked in the claw locking hole of the upper surface side step portion 34b. Furthermore, an adhesive, a filler, a bonding agent, or the like is applied to the divided portion 33 as necessary. Thereby, the invert part renovation member 22 can be assembled integrally.
As shown in FIG. 21, prior to mounting the public rehabilitation member 21, a circular pipe port is formed in accordance with the actual installation position of the sewage inflow pipe 4 with respect to the lower vertical wall portion 35 of the inlet side portion 32 a. 37 (site excavation pipe opening) is formed.
Further, the riser pipe rehabilitation member installation process and the back-filling agent injection process are substantially the same as in the first embodiment.

  <Effect> According to this embodiment, the following effects can be obtained.

(Operational Effect 2-1) About Disassembly / Assembly Member 32 The invert portion renovation member 22 (invertable portion renovation member that can be changed in form) can be disassembled into a size that can be inserted from the upper opening 14 and can substantially cover the invert portion 11. Further, by configuring the disassembly / reassembly member 32 that can be assembled, the invert portion renovation member 22 can be reconfigured and reverted using disassembly and assembly of the disassembly / assembly member 32. Further, by configuring the invert portion remodeling member 22 (invertable portion remodeling member) with the disassembly and assembly member 32, the configuration can be simplified, the shape can be easily changed and restored, and the installation can be facilitated and stopped. It is possible to improve aqueous properties.

(Effect 2-2) Splitting of disassembling / assembling member 32 The invert portion renewal member 22 divides the invert groove renovation portion 22a and the inclined surface renovation portion 22b into an inlet side portion 32a and an outlet side portion 32b. Thus, it is possible to disassemble and assemble the invert section renewal member 22 functionally and structurally without difficulty. In addition, after combining the divided portions 33, the divided portions 33 can be easily stopped by applying an adhesive, a filler, a bonding agent, or the like to the divided portions 33.

(Effect 2-3) About the lower rising wall portion 35 The invert portion rehabilitation member 22 integrally has the lower rising wall portion 35 constituting the lower portion of the rising tube portion 12 at the peripheral portion, whereby the invert portion 11 is provided. It is possible to improve the water stoppage at the boundary portion between the pipe and the rising pipe portion 12. Moreover, since the lower accommodating part 22c can be set in a position higher than a normal water level by having the lower accommodating part 22c in the upper edge part of the lower standing wall part 35, the water stop is improved correspondingly. It becomes possible. Furthermore, by previously providing a circular pipe port 36 that matches the outflow port 7 at a position corresponding to the invert groove 11a of the lower rising wall part 35, it is possible to eliminate the trouble of cutting the pipe port 36 on site. It is possible to improve the water stoppage around the sewage outflow pipe 6 and the outlet 7. Further, by forming the lower rising wall portion 35 of the inlet side portion 32a into a non-cut shape, a circular pipe port 37 (on-site cut pipe port) is accurately formed in accordance with the actual installation position of the sewage inflow pipe 4. can do. Moreover, since the circular pipe opening 36 and the pipe opening 37 are formed with respect to the lower rising wall part 35 integral with the invert part renovation member 22, the above-mentioned balloon-like member is used when injecting the backing material. By inflating 31, it is possible to prevent the invert portion rehabilitation member 22 and the rising pipe portion rehabilitation member 23 from separating.

(Function and Effect 2-4) Modifications By configuring the invert portion renewal member 22 (invertable portion renovation member that can be changed in form) as the disassembly and assembly member 32, the invert groove 11a has a shape other than a straight line (non-linear invert groove). Even if it has, it becomes possible to cope easily.

(Effect 2-5) About the public rehabilitation method According to the public rehabilitation method of this Example, the same effect as the effect 2-1 to the effect 2-3 can be obtained. In addition, any one of the above-described operational effects 1-1 to 1-5 of the first embodiment can be obtained.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described. Further, when there is a term of “etc.”, it is used in the sense that the equivalent is included. In addition, when there are terms such as “almost”, “about”, “degree”, etc., they are used in the sense that they include those in the range and accuracy recognized by common sense.

DESCRIPTION OF SYMBOLS 1 Public reed 7 Outlet 11 Invert part 11a Invert groove 11b Inclined surface part 12 Standing pipe part 13 Slanted wall part 14 Upper opening part 21 Public rehabilitation member 22 Invert part rehabilitation member 22c Lower accommodating part 23 Upright pipe part rehabilitation member 23a Side edge accommodating part 24 Deformation return member (invert part rehabilitation member whose form can be changed)
25 Sheet-like member 26 Deformation return part 28 Anchor part 31 Disassembly / assembly member (invert part rehabilitation member whose form can be changed)
31a Inlet side portion 31b Outlet side portion 33 Dividing part 35 Lower vertical wall part 36 Pipe port

Claims (8)

At least an invert portion on the bottom surface, a rising tube portion that rises in a cylindrical shape from a peripheral portion of the invert portion, a slant wall portion that extends upward while reducing the diameter from the upper end portion of the rising tube portion, A public wall rehabilitation member for rehabilitating an existing public wall provided on the upper side of the inclined wall part and having an upper opening having a smaller diameter than the invert part,
An invert part rehabilitation member capable of rehabilitating the invert part mainly, and a rising pipe part rehabilitation member mainly rehabilitating the riser pipe part, respectively,
The invert part rehabilitation member has a planar shape that is approximately the same size as the invert part or slightly smaller than the invert part,
The shape can be changed to a size that can be inserted from the upper opening, and the shape can be returned to a size that can substantially cover the invert portion.
The rising pipe part rehabilitation member is configured by a sheet-like member that can be rolled up and inserted from the upper opening, and can cover the inner surface of the rising pipe part by spreading .
The invert portion renovation member is configured by a deformation return member that can be deformed to a size that can be inserted from the upper opening and can return to a size that can substantially cover the invert portion,
The invert part has an invert groove inclined downward toward the outlet of the public fence, and an inclined surface part inclined downward toward the invert groove,
The public inversion rehabilitation member, wherein the inversion part rehabilitation member has a deformation return part that can be deformed and returned around a boundary portion between the invert groove and the inclined surface part . At least an invert portion on the bottom surface, a rising tube portion that rises in a cylindrical shape from a peripheral portion of the invert portion, a slant wall portion that extends upward while reducing the diameter from the upper end portion of the rising tube portion, A public wall rehabilitation member for rehabilitating an existing public wall provided on the upper side of the inclined wall part and having an upper opening having a smaller diameter than the invert part,
An invert part rehabilitation member capable of rehabilitating the invert part mainly, and a rising pipe part rehabilitation member mainly rehabilitating the riser pipe part, respectively,
The invert part rehabilitation member has a planar shape that is approximately the same size as the invert part or slightly smaller than the invert part,
The shape can be changed to a size that can be inserted from the upper opening, and the shape can be returned to a size that can substantially cover the invert portion.
The rising pipe part rehabilitation member is configured by a sheet-like member that can be rolled up and inserted from the upper opening, and can cover the inner surface of the rising pipe part by spreading.
The invert portion renovation member is constituted by a disassembly and assembly member that can be disassembled into a size that can be inserted from the upper opening and can be assembled to a size that can substantially cover the invert portion,
The public rehabilitation member, wherein the invert portion rehabilitation member is divided into at least an inlet side portion and an outlet side portion. At least an invert portion on the bottom surface, a rising tube portion that rises in a cylindrical shape from a peripheral portion of the invert portion, a slant wall portion that extends upward while reducing the diameter from the upper end portion of the rising tube portion, A public wall rehabilitation member for rehabilitating an existing public wall provided on the upper side of the inclined wall part and having an upper opening having a smaller diameter than the invert part,
An invert part rehabilitation member capable of rehabilitating the invert part mainly, and a rising pipe part rehabilitation member mainly rehabilitating the riser pipe part, respectively,
The invert part rehabilitation member has a planar shape that is approximately the same size as the invert part or slightly smaller than the invert part,
The shape can be changed to a size that can be inserted from the upper opening, and the shape can be returned to a size that can substantially cover the invert portion.
The rising pipe part rehabilitation member is configured by a sheet-like member that can be rolled up and inserted from the upper opening, and can cover the inner surface of the rising pipe part by spreading.
The invert part renovation member has a lower accommodation part capable of accommodating and holding the lower end part of the rising pipe part renovation member at least at a part of the peripheral part,
The public pipe rehabilitation member, wherein the rising pipe portion rehabilitation member has a side edge portion accommodating portion capable of accommodating and holding the other side edge portion on one side edge portion. The invert portion renovation member is constituted by a deformation return member that can be deformed into a size that can be inserted from the upper opening and that can return to a size that can substantially cover the invert portion, or
The invert portion rehabilitation member, according to claim 3, characterized in that it is constituted by assemblable exploded member sized to obtain substantially covering the degradable and the invert portion insertable size from the upper opening Public rehabilitation materials. The invert portion rehabilitation member integrally has a lower rising wall portion constituting a lower portion of the rising pipe portion at a peripheral portion, and has the lower accommodating portion at an upper edge portion of the lower rising wall portion,
The public rehabilitation member according to claim 3 or 4 , wherein a circular pipe opening that matches the outflow port is provided at a position corresponding to the invert groove of the lower rising wall portion. Between the invert part and the invert part renewal member on at least one of the surface on the invert part side of the invert part renovation member or the surface on the rise pipe part side of the upright pipe part renovation member, or any of claims 1 to 5, characterized in that a biting holdable anchor portion Urakomi material injected between the riser pipe section rehabilitation member and the riser pipe part Public rehabilitation member according to item 1. A public rehabilitation method for rehabilitating a public reed using the public rehabilitation member according to any one of claims 1 to 6 ,
After changing the shape of the invert part rehabilitation member, which is almost the same size as the invert part on the bottom of the public fence or slightly smaller than the invert part, and inserting it into the inside from the upper opening of the public fence, Return it and install it so that it almost covers the invert part.
The rising pipe part rehabilitation member composed of sheet-like members is rolled up and inserted from the upper opening of the public fence into the interior, and then expanded inside the public fence so as to almost cover the inner surface of the rising pipe section of the public fence. Installed in
Backing material is injected between the rising pipe part and the rising pipe part retreading member, and between the invert part and the inverting part retreading member, and the rising pipe part retreading member and the inverting part retreading member are While fixing to the riser and invert parts with the insert ,
In the case of the form change, the shape of the inverted part renovation member constituted by the deformation return member,
While being deformed by a deformation return portion provided around the boundary portion between the invert groove and the inclined surface portion of the invert portion,
The public rehabilitation method characterized by returning the shape of the invert part renovation member comprised by the deformation | transformation return member in the case of the said form return . A public rehabilitation method for rehabilitating a public reed using the public rehabilitation member according to any one of claims 1 to 6 ,
After changing the shape of the invert part rehabilitation member, which is almost the same size as the invert part on the bottom of the public fence or slightly smaller than the invert part, and inserting it into the inside from the upper opening of the public fence, Return it and install it so that it almost covers the invert part.
The rising pipe part rehabilitation member composed of sheet-like members is rolled up and inserted from the upper opening of the public fence into the interior, and then expanded inside the public fence so as to almost cover the inner surface of the rising pipe section of the public fence. Installed in
Backing material is injected between the rising pipe part and the rising pipe part retreading member, and between the invert part and the inverting part retreading member, and the rising pipe part retreading member and the inverting part retreading member are While fixing to the riser and invert parts with the insert,
When changing the form, the invert portion renovating member constituted by the disassembling assembly member is disassembled into an inlet side portion and an outlet side portion,
A public rehabilitation method characterized by integrally assembling an invert part rehabilitation member constituted by a disassembly and assembly member when returning to the form .