Post-treatment method for coiled pipes after pipe rehabilitation work

Abstract

To secure the advantage of a drum-less system even if a drum-less wound-stacked body remains after a pipeline rehabilitation construction.SOLUTION: A post-processing method for a wound-stacked body after a pipeline rehabilitation construction that pays out a belt-like member 90 from an annular wound-stacked body 91 accommodated in an annular accommodation chamber 19 of a construction reel 10, and manufactures a spiral pipe shaped rehabilitation pipe 9, to line an inner surface of a pipeline 1 with the rehabilitation pipe 9 comprises the steps of: taking out a remaining wound-stacked body 91A remaining after a pipeline rehabilitation construction from the construction reel 10, preferably, bundling the remaining wound-stacked body 91A with a bundling material 92A before and after the taking out; separating the remaining wound-stacked body 91A from the construction reel 10, carrying it and storing it; and using the remaining wound-stacked body 91A for rehabilitation construction of another pipeline 1B in a state in which the remaining wound-stacked body is accommodated in a second construction reel 20 having a second annular accommodation chamber 29 with a diameter larger than the annular accommodation chamber 19.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a post-processing method for an annular coiled body made by winding together strip-shaped members, which are used, for example, in the rehabilitation of aging sewer pipes, and more particularly to a post-processing method for drumless coiled bodies that are left over after pipe rehabilitation work. [Background technology]

[0002] It is well known that a method of rehabilitating aging sewer pipes and other existing pipelines involves lining the inner surface of the pipeline with a spiral pipe made of a long, strip-shaped member (profile) made of synthetic resin (see Patent Documents 1-3, etc.). In Patent Document 1, the strip-shaped member is transported to the construction site wound up on a steel drum. The drum includes a pair of disc-shaped side plates with a central hole and a cylindrical body provided between the inner edges of these side plates. The strip-shaped member is wound up on the outer circumference of the body to form an annular wound body. At the rehabilitation construction site, the body is withdrawn, exposing the inner circumference of the wound body. The strip-shaped member is then fed into the pipeline from the inner circumference side of the wound body through the central hole in the side plates and formed into a spiral pipe.

[0003] In the method described in Patent Document 1, after the completion of construction, the empty drums must be returned to the manufacturing or storage location of the strip-shaped members. The manufacturing or storage location must maintain a sufficient number of drums to supply the market. Therefore, there are costs associated with the return shipping of the empty drums, as well as the production and maintenance costs of the drums.

[0004] In contrast, Patent Documents 2 and 3 propose a drumless system in which a rolled-up strip of material is secured with a binding band for storage and transport, eliminating the need for a drum. A construction reel is provided at the rehabilitation construction site. The construction reel includes a pair of circular frames with a central hole and a plurality of rod-shaped connecting members that connect these frames. The connecting members are provided at intervals in the circumferential direction on the outer circumference of the frames. The connecting member on one side of the construction reel is removed, and the drumless rolled-up material is inserted into the construction reel from the aforementioned side. After that, the connecting member is reattached to the aforementioned side. With this drumless system, there is no need to return the drum after construction, and therefore no return shipping costs are incurred. In addition, fewer construction reels are required compared to drums, which reduces production and maintenance costs. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 10-128849 [Patent Document 2] Japanese Patent Publication No. 2012-240803 [Patent Document 3] Japanese Patent Publication No. 2017-124941 [Overview of the project] [Problems that the invention aims to solve]

[0006] In the drumless winding bodies described in the aforementioned Patent Documents 2 and 3, when the binding band is undone to unwind the strip-shaped members, the winding bodies gradually loosen and expand in diameter within the construction reel. Therefore, if the winding bodies are not used up in a single rehabilitation construction, the remaining winding bodies had to be stored and transported while still inside the construction reel. This is because even if the remaining winding bodies are removed from the construction reel and then placed into a new construction reel of the same type at a different construction site, it is difficult to do so because they have expanded in diameter. Consequently, a construction reel is required for each remaining winding body, negating the advantages of the drumless design and resulting in inefficiency. In view of these circumstances, the present invention aims to provide a post-processing method that ensures the advantages of the drumless method even when drumless coiled bodies are left over after pipeline rehabilitation work. [Means for solving the problem]

[0007] To solve the aforementioned problems, the present invention provides a method for post-processing excess windings of a pipe after pipe rehabilitation work, in which an annular winding body made of wound strip members is housed in an annular storage chamber of a construction reel, the strip members are unwound from the construction reel, and a spiral tubular rehabilitation pipe formed from the unwound strip members is lined on the inner surface of the pipe. The process of removing the excess winding from the construction reel, A step of separating the excess winding stack from the construction reel and storing or transporting it, The process involves placing the aforementioned excess coiled material into a second construction reel having a second annular storage chamber with a larger diameter than the aforementioned annular storage chamber, and then subjecting it to another pipeline rehabilitation construction. It is characterized by having the following features.

[0008] The rolled-up body is used without a drum. The construction reel, which becomes empty after the aforementioned removal, can be reused to house a new winding. Therefore, fewer construction reels are required. By storing the excess coils individually, i.e., without a construction reel, the space required for storage can be reduced. Furthermore, the excess coils can be transported individually, i.e., without a construction reel, to another pipeline rehabilitation construction site, and can be placed on a second construction reel at the other pipeline rehabilitation construction site. Alternatively, the excess coils may be placed on a second construction reel before being transported to another pipeline rehabilitation construction site. The excess coils may also be stored or transported while placed on a second construction reel. On the other hand, the excess windings may be enlarged in diameter due to loosening of the winding. In contrast, since the second annular storage chamber of the second construction reel is larger in diameter than the annular storage chamber of the construction reel, the excess windings can be easily accommodated in the second construction reel. At another pipeline rehabilitation construction site, the excess overlapping material strip is unwound from the second construction reel and used for the other pipeline rehabilitation construction. The target of the other pipeline rehabilitation construction does not necessarily have to be a pipeline located far from the pipeline that was previously rehabilitated (before post-treatment); it may be an unrehabilitated portion of a pipeline whose rehabilitation work was left unfinished, or a pipeline adjacent to the rehabilitated pipeline separated by a manhole or the like. In other words, the previous (before post-treatment) pipeline rehabilitation construction site and the other pipeline rehabilitation construction site may be the same, adjacent, or in close proximity. The second construction reel, once it has used up all of the excess winding material, can be reused for rehabilitation construction using other excess winding material. Since fewer second construction reels are required, the total production and maintenance costs for both the construction reel and the second construction reel can be reduced. As a result, the advantages of the drumless system can be maintained.

[0009] Preferably, the excess rolled-up material is secured with a binding material before or after the removal. This prevents the excess coil from loosening and expanding excessively in diameter. Therefore, it facilitates the storage and transportation of the excess coil and ensures that the excess coil can be securely stored in the second construction reel.

[0010] Preferably, the construction reel includes a pair of first circular frames and a plurality of first connecting members arranged at intervals in the circumferential direction of the construction reel and connecting the pair of first circular frames, and the outer periphery of the annular housing chamber is defined by these first connecting members. The second construction reel includes a pair of second circular frames having the same diameter as the first circular frame, and a plurality of second connecting members arranged at intervals in the circumferential direction of the second construction reel and connecting the pair of second circular frames, and the outer periphery of the second annular housing chamber is defined by these second connecting members. The distance from the central axis of the second construction reel to the second connecting member is greater than the distance from the central axis of the construction reel to the first connecting member. Since the second circular frame has the same diameter as the first circular frame, a support stand having the same size or standard as the support stand for the first construction reel can be used as the support stand for the second construction reel. Accordingly, the support stand can be reused. The distance from the central axis of the construction reel to the first connecting member corresponds to the radius of the annular accommodation chamber. The distance from the central axis of the second construction reel to the second connecting member corresponds to the radius of the second annular accommodation chamber. By making the distance from the central axis of the second construction reel to the second connecting member larger than the distance from the central axis of the construction reel to the first connecting member, the second annular accommodation chamber has a larger diameter than the annular accommodation chamber.

Effects of the Invention

[0011] According to the present invention, even if a drumless wound body remains after pipe rehabilitation construction, the construction reel used in said pipe rehabilitation construction can be reused. Accordingly, the required number of construction reels can be reduced, and the production and maintenance costs of construction reels can be reduced. [Brief Description of the Drawings]

[0012] [Figure 1] Fig. 1(a) is a plan view of a construction reel used for pipe rehabilitation construction. Fig. 1(b) is a front view of said construction reel. Fig. 1(c) is a plan view of a second construction reel used for another pipe rehabilitation construction using the remaining wound body. Fig. 1(d) is a front view of said second construction reel. [Figure 2] Fig. 2(a) is a perspective view of a wound body. Fig. 2(b) is a perspective view of said remaining wound body. [Figure 3] Fig. 3(a) is an explanatory cross-sectional view of a pipe rehabilitation construction site showing the setting step in said pipe rehabilitation construction. Fig. 3(b) is an explanatory cross-sectional view of the pipe rehabilitation construction site after setting. [Figure 4] Fig. 4 is an explanatory cross-sectional view of a pipe rehabilitation construction site showing the lining step in said pipe rehabilitation construction. [Figure 5]Figure 5(a) is an explanatory cross-sectional view of the pipeline rehabilitation construction site at the completion of the pipeline rehabilitation work. Figure 5(b) is an explanatory cross-sectional view of the pipeline rehabilitation construction site showing the process of removing excess coiled material after the pipeline rehabilitation work. [Figure 6] Figure 6(a) is an explanatory cross-sectional view showing the process of setting the excess windings onto the second construction reel at a rehabilitation construction site for another pipeline. Figure 6(b) is an explanatory cross-sectional view showing the lining process for the other pipeline. [Modes for carrying out the invention]

[0013] One embodiment of the present invention will be described below with reference to the drawings. Figure 4 shows a rehabilitation construction site 2 of an aging existing pipeline 1. The pipeline 1 is being rehabilitated by lining its inner surface with a rehabilitation pipe 9. In this embodiment, the pipeline 1 to be rehabilitated is a sewer pipe. However, the pipeline to be rehabilitated is not limited to sewer pipes; it may also be a water supply pipe, gas pipe, agricultural water pipe, hydroelectric power generation water conduit, tunnel, etc.

[0014] As shown in Figure 4, the rehabilitated pipe 9 is composed of a strip-shaped member 90 (profile) and is spirally shaped. The strip-shaped member 90 is formed from a synthetic resin such as polyvinyl chloride (PVC) into a long strip with a predetermined cross-section. The strip-shaped member 90 may also include a metal reinforcing strip such as steel. The strip-shaped member 90 is sent from the above-ground construction reel 10 through the manhole 4 to the pipe-making machine 3 inside the pipeline 1, where it is manufactured into a spirally shaped rehabilitated pipe 9.

[0015] As shown in Figures 1(a) and 1(b), the construction reel 10 includes a pair of first circular frames 11 and a plurality of first connecting members 13. Each first circular frame 11 includes a circular side plate 11a having a central hole 11c, an inner circumferential rim 11b along the edge of the central hole 11c, an outer circumferential rim 11d surrounding the outer circumference of the side plate 11a, and a plurality of spokes 11e, 11f provided on the side plate 11a. Thin spokes 11e and thick spokes 11f are arranged alternately and radially in the circumferential direction of the side plate 11a. The inner end of each spoke 11e, 11f is joined to the inner circumferential rim 11b. The outer end of each spoke 11e, 11f extends from the side plate 11a and is joined to the outer circumferential rim 11d. A connecting portion 14 for connection to the first connecting member 13 is provided near the outer end of each spoke 11f. A pair of first circular frames 11 face each other in the axial direction of the construction reel 10 (up and down in Figure 1(a), and in the direction perpendicular to the plane of the paper in Figure 1(b)).

[0016] Multiple first connecting members 13 are arranged at intervals from each other in the circumferential direction of the construction reel 10. Each first connecting member 13 is formed in the shape of a rod extending in the axial direction of the construction reel 10. A pair of first circular frames 11 are connected by the first connecting members 13. Both ends of the first connecting members 13 are connected to the connecting portions 14 of the corresponding first circular frames 11. Of the first connecting members 13, at least the first connecting member 13A on one side 10a in the circumferential direction of the construction reel 10 is detachably attached to the connecting portion 14A of the side 10a and, consequently, to the first circular frame 11 (Figure 3(a)).

[0017] The internal space of the construction reel 10 constitutes an annular storage chamber 19. The outer periphery of the annular storage chamber 19 is defined by the first connecting member 13. The axial ends of the annular storage chamber 19 are defined by a pair of first circular frames 11.

[0018] As shown in Figure 2(a), the strip-shaped member 90 before pipe manufacturing is wound in an annular shape to form a hollow cylindrical (annular) wound body 91. Strip-shaped binding material 92 is provided at intervals in the winding direction of the wound body 91. The binding material 92 is wound around a cross section perpendicular to the winding direction of the wound body 91, thereby binding the wound body 91 together. Outer diameter D of the wound body 91 91 This is the outer diameter of the annular storage chamber 19, i.e., the distance D from the central axis of the construction reel 10 to the first connecting member 13. 13 (D) Slightly smaller than (Figure 1(b)) 91 <D 13 ).

[0019] <Pipeline rehabilitation construction> Pipe rehabilitation work is carried out as follows: As shown in Figure 3(a), the rolled-up bodies 91 bound together with binding material 92 are loaded onto a transport vehicle 6 and transported to the rehabilitation construction site 2. A construction reel 10 is prepared at the rehabilitation construction site 2. The construction reel 10 is rotatably mounted on a support base 5 near the ground entrance of the launch manhole 4.

[0020] As shown in Figures 3(a) and 3(b), the winding stack 91 is unloaded from the transport vehicle 6 and set on the construction reel 10 (setting process). Specifically, the first connecting member 13A is removed from one side 10a of the construction reel 10. This opens up one side 10a. The winding stack 91 is inserted into the annular storage chamber 19 through the opened side 10a and stored. After that, the first connecting member 13A is reattached to one side 10a of the construction reel 10. Alternatively, the windings 91 may be stored and set on the construction reel 10 in a storage yard or the like, and then transported in this set state and installed at the rehabilitation construction site 2. In this case, the setting work at the rehabilitation construction site 2 can be omitted. Next, the binding material 92 is removed from the rolled body 91 to release the binding of the rolled body 91 (binding release step). As a result, the rolled state of the rolled body 91 may loosen.

[0021] Thereafter, as shown in Fig. 4, the strip-shaped member 10 is sequentially fed out from the inner peripheral side of the wound roll 91 (feeding step). The fed-out strip-shaped member 10 is suspended into the starting manhole 4 and introduced into the pipe forming machine 3. The strip-shaped member 10 is spirally wound by the pipe forming machine 3, and formed into the spiral tubular rehabilitation pipe 9 along the inner circumference of the pipeline 1 (pipe forming step).

[0022] The pipe forming machine 3 is a self-propelled pipe forming machine that is arranged at the front end portion (left end portion in Fig. 4) in the extending direction of the rehabilitation pipe 9 and is self-propelled in the spiral winding direction along with pipe forming. The pipe forming machine is not limited to this, and may be a main push-type pipe forming machine that is arranged at the bottom of the manhole 4 and pushes out the pipe while forming it, or may be a traction-type pipe forming machine that pulls the front end portion in the extending direction with a winch while forming the pipe.

[0023] As shown in Fig. 5(a), in this manner, the inner surface of the pipeline 1 is lined with the rehabilitation pipe 9 (lining step), and the pipeline 1 is rehabilitated. At the end of rehabilitation construction, the wound roll 91 in the construction reel may remain partially unused. Said remaining unused wound roll 91 is referred to as the surplus wound roll 91A. The surplus wound roll 91A has its diameter expanded due to loosening of the winding after the binding is released, and is stuck to the first connecting member 13. For this reason, the outer diameter D of the surplus wound roll 91A 91A (Fig. 2(b)) is larger than the original outer diameter D of the wound roll 91 91 (Fig. 2(a)) (D 91A >D 91 ), and is substantially the same size as the diameter of the annular accommodating chamber 19 (D 91A ≒D 13 ).

[0024] <Post-treatment of surplus wound roll> The surplus wound roll 91A is post-treated as follows after the rehabilitation construction. As shown in Fig. 2(b), strip-shaped binding members 92A are respectively wound around a plurality of circumferential positions of the surplus wound roll 91A to bind it (re-binding step). This can prevent the surplus wound roll 91A from further loosening resulting in excessive diameter expansion, and prevent the surplus wound roll 91A from being unwound.

[0025] Next, as shown in Figure 5(b), the first connecting member 13A on one side 10a of the construction reel 10 is removed to open the side 10a. The excess winding stack 91A is then removed from the opened side 10a to the outside of the construction reel 10 (removal step). The removed excess coils 91A are transported by transport vehicle 6A to a storage yard (not shown) and stored (transportation and storage process). Transporting the excess coils 91A away from the construction reel 10 reduces the load. Storing the excess coils 91A away from the construction reel 10 reduces the space required for storage. There is no need to prepare as many construction reels 10 as there are overlapping winding units 91A. The work reels 10 that become empty during the removal process can be reused for other rehabilitation work. Therefore, fewer work reels 10 are required, and the production and maintenance costs of the work reels 10 can be reduced.

[0026] As shown in Figure 6(a), when the strip-shaped members 10 constituting the excess winding stack 91A are needed at a rehabilitation construction site 2B of another pipeline 1B, the excess winding stack 91A are loaded onto a transport vehicle 6B and transported to that rehabilitation construction site 2B. As mentioned above, this reduces the load capacity. At the rehabilitation construction site 2B, the second support base 5B and the second construction reel 20 are prepared. The second support base 5B is located near the ground entrance / exit of the launch manhole 4B of the conduit 1B. The second construction reel 20 is rotatably mounted on the second support base 5B.

[0027] As shown in Figures 1(c) and 1(d), the second construction reel 20 includes a pair of second circular frames 21 and a plurality of second connecting members 23. Each second circular frame 21 includes a circular side plate 21a having a central hole 21c, an inner circumferential rim 21b along the edge of the central hole 21c, an outer circumferential rim 21d surrounding the outer circumference of the side plate 21a, and a plurality of spokes 21e, 21f provided on the side plate 21a. Thin spokes 21e and thick spokes 21f are arranged alternately and radially in the circumferential direction of the side plate 21a. The inner end of each spoke 21e, 21f is joined to the inner circumferential rim 21b. The outer end of each spoke 21e, 21f extends from the side plate 21a and is joined to the outer circumferential rim 21d. A connecting portion 24 for connection with the second connecting member 23 is provided near the outer end of the spoke 21f. A pair of second circular frames 21 face each other in the axial direction of the second construction reel 20 (up and down in Figure 1(c), and in the direction perpendicular to the plane of the paper in Figure 1(d)).

[0028] Multiple second connecting members 23 are arranged at intervals from each other in the circumferential direction near the outer circumference of the second construction reel 20. Each second connecting member 23 is formed in the shape of a rod extending in the axial direction of the second construction reel 20. A pair of second circular frames 21 are connected by the second connecting members 23. Both ends of the second connecting members 23 are connected to the connecting portions 24 of the corresponding second circular frames 21. Of the second connecting members 23, at least the second connecting member 23A on one side 20a in the circumferential direction of the second construction reel 20 is detachably attached to the connecting portion 24A of the side 20a and, consequently, to the second circular frame 21 (Figure 6(a)).

[0029] The outer diameter of the second circular frame 21 is equal to the outer diameter of the first circular frame 11. The length of the second connecting member 23 is equal to the length of the first connecting member 13. Therefore, the outer diameter and shaft length of the second construction reel 20 are equal to the outer diameter and shaft length of the first construction reel 10, respectively. For this reason, a support base of the same size or specifications as the support base 5 (Figure 3) for the construction reel 10 can be used as the second support base 5B. Support base 5 can also be reused as the second support base 5B.

[0030] The internal space of the second construction reel 20 constitutes an annular storage chamber 29. The outer periphery of the annular storage chamber 29 is defined by the second connecting member 23. The axial ends of the annular storage chamber 29 are defined by a pair of second circular frames 21. The distance D from the central axis of the second construction reel 20 to the second connecting member 23. 23 The distance D from the central axis of the first construction reel 10 to the first connecting member 13 is... 13 Larger. Therefore, the second annular housing chamber 29 has a larger diameter than the first annular housing chamber 19. Preferably, distance D 23 is, distance D 13 It is approximately 1.03 to 1.1 times, but is not limited to this range.

[0031] As shown in Figure 6(a), the excess winding stack 91A is set on the second construction reel 20 (re-setting step). Specifically, the second connecting member 23A on one side 20a of the second construction reel 20 is removed. This opens up one side 20a. The excess winding stack 91A is inserted into the second annular storage chamber 29 through the opened side 20a and stored. Even if the excess winding stack 91A has expanded in diameter due to winding slack, the second annular storage chamber 29 has a large diameter, so the excess winding stack 91a can be easily stored and set on the second construction reel 20. Afterward, the removed second connecting member 23A is attached to one side 20a of the second construction reel 20.

[0032] Next, as shown in Figure 6(b), the binding material 92A is removed from the excess coiled stack 91A to release the binding of the excess coiled stack 91A (post-processing binding release step). Subsequently, the strip-shaped members 10 are sequentially unwound from the inner circumference side of the excess winding body 91A (post-processing unwounding step). The unwound strip-shaped members 10 are introduced into the pipe-making machine 3B of the conduit 1B via the launching manhole 4B, and the pipe-making machine 3B manufactures a spiral-shaped rehabilitated pipe 9B that follows the inner circumference of the conduit 1B (post-processing pipe-making step). This allows the excess coiled material 91A to be used for the rehabilitation work of a separate pipeline 1B from pipeline 1.

[0033] Once the excess windings 91A have been used up, the second construction reel 20, which is now empty, can be reused for rehabilitation construction using other excess windings. However, the second construction reel 20 is not needed for the storage and transportation of other excess windings. Therefore, fewer second construction reels 20 are required. Thus, the total production and maintenance costs of the construction reel 10 and the second construction reel 20 combined can be reduced. As a result, the advantages of the drumless system can be maintained.

[0034] The present invention is not limited to the embodiments described above, and various modifications can be made without departing from its spirit. For example, the outer diameter of the second circular frame 21 may be larger than the outer diameter of the first circular frame 11. The second support base 5B may be for a construction reel larger than the support base 5. The post-processing procedure can be modified as appropriate. For example, the excess windings 91A may be removed from the construction reel 10 and then bound with the binding material 92A. Alternatively, the excess windings 91A may be stored and set on the second construction reel 20 in a storage yard or the like, and then transported in this set state and installed at another rehabilitation construction site 2B. In this case, the setting work at rehabilitation construction site 2B can be omitted. Furthermore, the excess windings 91A may be removed from the construction reel 10 and transferred to the second construction reel 20 at the original rehabilitation construction site 2. Another rehabilitation construction site 2B (Figure 6) does not need to be far away from the previous (pre-post-treatment) rehabilitation construction site 2 (Figures 3-5), and may be the same as, adjacent to, or close to, rehabilitation construction site 2. The rehabilitation work on pipeline 1 (Figures 3-5) may be temporarily stopped midway, and then the unrehabilitated portion of the same pipeline 1 may be rehabilitated using the excess wrapping body 91A at "another rehabilitation construction site 2B". The adjacent pipeline 1' or 1'' separated from pipeline 1 by manhole 4 or 4' in Figure 4 may be rehabilitated using the excess wrapping body 91A at "another rehabilitation construction site 2B". [Industrial applicability]

[0035] This invention can be applied, for example, to the rehabilitation of aging sewer pipes. [Explanation of symbols]

[0036] 1 conduit 1B,1',1” Another conduit 2 Rehabilitation construction site 2B Another rehabilitation construction site 3,3B pipe making machine 5,5B Support stand 9 Rehabilitation pipe 10 Installation Reels 10a One side 11. First circular frame 13. First connecting member 13A First connecting member on one side 19. Circular containment chamber 90 Strip-shaped member (profile) 91 Overlapping bodies 91A Overwhelmingly wound and overlapping body 92,92A Binding material 20. Second construction reel 20a One side 21. Second circular frame 23 Second connecting member 23A Second connecting member on one side 29 Second Ring Containment Chamber

Claims

1. A method for post-processing excess reeled bodies after pipeline rehabilitation work, wherein an annular reeled body made of wound strip members is housed in an annular storage chamber of a construction reel, the strip members are unwound from the construction reel, and the spiral-shaped rehabilitation pipe formed from the unwound strip members is lined on the inner surface of the pipeline, The process of removing the excess winding from the construction reel, A step of separating the excess winding stack from the construction reel and storing or transporting it, The process involves placing the aforementioned excess coiled bundle into a second construction reel having a second annular storage chamber with a larger diameter than the aforementioned annular storage chamber, and then subjecting it to another pipeline rehabilitation construction. A post-processing method for a rolled-up body, characterized by comprising the following features.

2. The post-processing method according to claim 1, wherein the excess rolled-up body is bound with a binding material before or after the removal step.

3. The construction reel includes a pair of first circular frames and a plurality of first connecting members that are spaced apart in the circumferential direction of the construction reel and connect the pair of first circular frames, and the outer periphery of the annular housing chamber is defined by these first connecting members. The second construction reel includes a pair of second circular frames having the same diameter as the first circular frame, and a plurality of second connecting members arranged at intervals in the circumferential direction of the second construction reel and connecting the pair of second circular frames, and the outer periphery of the second annular storage chamber is defined by these second connecting members. The post-processing method according to claim 1 or 2, wherein the distance from the central axis of the second construction reel to the second connecting member is greater than the distance from the central axis of the construction reel to the first connecting member.

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