Rehabilitation pipe installation jig

Abstract

The present invention provides a rehabilitation pipe installation jig that makes it easier to more reliably inject filler material between the existing pipe and the rehabilitation pipe, including between the bottoms of the existing pipe and the rehabilitation pipe. [Solution] The installation jig for a rehabilitating pipe X of the present invention has a support member 2 that supports the rehabilitating pipe X at a distance from the inner surface of the existing pipe, and the support member 2 has an anchor portion 6 that can be fixed to the rehabilitating pipe X. The support member 2 has a mounting portion 4 that is placed on the rehabilitating pipe X and legs 5 that form a distance between the mounting portion 4 and the inner surface of the existing pipe, and the legs 5 are fixed to the mounting portion 4, and the anchor portion 6 is provided on the mounting portion 4.

Description

[Technical Field]

[0001] The present invention relates to an installation jig for a rehabilitation pipe. [Background technology]

[0002] When rehabilitating an existing pipe that is roughly rectangular or horseshoe-shaped, a widely used method is to install a rehabilitation pipe inside the existing pipe and inject a filler such as mortar between the existing pipe and the rehabilitation pipe to stably fix the rehabilitation pipe. After the rehabilitation pipe is installed, the filler is filled through holes formed in the rehabilitation pipe. Once the filler is filled from bottom to top, the pipe is allowed to solidify and the pipe is then completely fixed inside the existing pipe. Summary of the Invention [Problem to be solved by the invention]

[0003] When the existing pipe and the rehabilitated pipe are rectangular or horseshoe-shaped and their bottoms are curved but generally flat, the bottoms of the existing pipe and the rehabilitated pipe need to be separated (i.e., space) so that the filler can be injected without contacting each other, but because this gap is very small, it is difficult for the filler to flow in. Therefore, if a cavity where no filler is present is created around the rehabilitated pipe, there is an issue in that the existing pipe, filler, and rehabilitated pipe are integrated into a composite, making it difficult to demonstrate the ability to withstand external forces that would otherwise occur. Furthermore, once buried, it becomes difficult to check the condition of the rehabilitated pipe and the existing pipe, so if the installation positions of the spacer members cannot be fixed to ensure the above-mentioned space, there is a risk that the spacers will overlap each other, making it impossible to ensure the specified spacing. Furthermore, if the rehabilitating pipe is made of a resin profile, the lack of affinity between the mortar-based filler and the resin material of the profile can allow water to penetrate into the tiny gaps between the filler and the profile, potentially causing the bottom of the rehabilitating pipe to peel off from the filler. Therefore, it is desirable to form a composite in which the rehabilitating pipe and the filler are physically bonded together to at least prevent the filler from peeling off from the bottom of the rehabilitating pipe. Therefore, the present invention provides a rehabilitation pipe installation jig that allows a predetermined gap to be created between the existing pipe and the rehabilitation pipe, allowing the filler material to be reliably injected, and also prevents the rehabilitation pipe from peeling off from the filler material, thereby suppressing problems caused by deformation of the rehabilitation pipe alone. [Means for solving the problem]

[0004] The rehabilitation pipe installation jig of the present invention has a support member that supports the rehabilitation pipe at a distance from the inner surface of the existing pipe, and the support member has an anchor portion that can be fixed to the rehabilitation pipe. This configuration ensures a constant gap between the rehabilitating pipe and the existing pipe, ensuring reliable injection of the filler. Furthermore, the anchors attached to the rehabilitating pipe securely fix the support members to the rehabilitating pipe. This prevents the rehabilitating pipe from peeling off from the filler after the filler, including the support members, has solidified.

[0005] The support member of the rehabilitation pipe installation jig of the present invention comprises a mounting portion that is placed on the rehabilitation pipe and legs that form a gap between the mounting portion and the inner surface of the existing pipe, and the legs may be fixed to the mounting portion, and the anchor portion may be provided on the mounting portion. According to this configuration, the support member is reliably fixed to the rehabilitating pipe while forming a substantially constant gap with respect to the inner surface of the existing pipe.

[0006] The mounting portion of the rehabilitation pipe installation jig of the present invention comprises a frame body that surrounds one side using a rod member, and an intermediate support rod that is suspended and fixed inside the frame body, and the intermediate support rod is arranged within the frame body so that it can be oriented more in the axial direction than in the width direction of the bottom surface of the rehabilitation pipe. With this configuration, the placing portion can be easily aligned with the curved shape of the bottom surface of the rehabilitating pipe.

[0007] The anchor portion of the rehabilitating pipe installation jig of the present invention may be formed in a rod shape that can be fitted onto the outer peripheral surface of the rehabilitating pipe. According to this configuration, the support member is fixed to the rehabilitation pipe over the entire length of the rod.

[0008] The anchor portion of the rehabilitating pipe installation jig of the present invention may be formed to have a circular or semicircular cross section. With this configuration, the anchor portion can be easily fitted into the rehabilitating pipe and is less likely to come off from the rehabilitating pipe.

[0009] The rehabilitation pipe installation jig of the present invention may further include an insertion member that is detachably attached to the support member and that inserts the support member between the rehabilitation pipe and the existing pipe. This configuration makes it easy to insert the support member between the rehabilitation pipe and the existing pipe.

[0010] The insertion member of the rehabilitation pipe installation jig of the present invention may have an attachment portion that is attached to the placement portion or the leg portion, and an insertion rod portion that inserts the attachment portion between the rehabilitation pipe and the existing pipe. This configuration makes it easy to insert the support member between the rehabilitation pipe and the existing pipe.

[0011] The insertion rod portion of the rehabilitation pipe installation jig of the present invention may be provided with an insertion position indicator that indicates the distance from the pipe end edge of the rehabilitation pipe, which serves as the insertion port of the placement portion between the rehabilitation pipe and the existing pipe, to the tip of the insertion member. This configuration makes it easy to grasp the position of the anchor portion relative to the rehabilitating pipe.

[0012] The insertion position indicator of the rehabilitation pipe installation jig of the present invention may be constituted by a string member, tape, paint, or a combination of these attached to the insertion rod portion at a predetermined distance from the mounting portion. This configuration makes it easy to grasp the position of the anchor portion relative to the rehabilitating pipe.

[0013] The insertion position indicator of the rehabilitation pipe installation jig of the present invention may be constituted by a stop portion that protrudes from the outer surface of the insertion rod portion a predetermined distance from the mounting portion and abuts against the pipe end edge. This configuration makes it easy to visually and tactilely grasp the position of the anchor portion relative to the rehabilitating pipe.

[0014] The support member of the rehabilitation pipe installation jig of the present invention may be formed by providing an anchor portion on one of the flanges of the H-beam or I-beam. With this configuration, one of the flanges of the H-shaped steel or I-shaped steel is used as a support portion, and the other of the web and flange is used as a leg portion, and an anchor portion is provided on the flange on the side that will be used as the support portion, making it possible to easily form a support member. [Effects of the Invention]

[0015] The rehabilitation pipe installation jig of the present invention allows for a predetermined gap between the existing pipe and the rehabilitation pipe, allowing for the filler to be reliably injected, and also has the effect of preventing the rehabilitation pipe from peeling off from the filler, thereby suppressing problems caused by deformation of the rehabilitation pipe alone. [Brief explanation of the drawings]

[0016] [Figure 1] 1A is a cross-sectional view of a support member of an installation jig for a rehabilitating pipe according to an embodiment of the present invention, taken along a plane perpendicular to the axial direction of the rehabilitating pipe, and a rehabilitating pipe to which the support member and the installation jig are applied. 2B is a cross-sectional view of FIG. 1A taken along line AA. [Figure 2] FIG. 2 is a plan view of a support member of a rehabilitation pipe installation jig according to an embodiment of the present invention. [Figure 3] 1A is a plan view showing an insertion member of an installation jig for a rehabilitating pipe according to an embodiment of the present invention, and FIG. 1B is an enlarged plan view showing the mounting portion of FIG. [Figure 4] 1 is an enlarged perspective view of an anchor portion and a leg portion of an installation jig for a rehabilitation pipe according to an embodiment of the present invention. FIG. [Figure 5] 5A and 5B are schematic diagrams showing a process of installing a rehabilitating pipe using a rehabilitating pipe installation jig according to one embodiment of the present invention. [Figure 6] 1A is a perspective view showing a method of using an installation jig for a rehabilitating pipe according to an embodiment of the present invention, and FIG. 1B is a perspective view showing an enlarged view of the mounting portion of FIG. [Figure 7]1 is a front view showing the installation state of a support member of an installation jig for a rehabilitation pipe according to one embodiment of the present invention. FIG. [Figure 8] 1A is a bottom view showing the installation state of the support member of the installation jig for a rehabilitating pipe according to one embodiment of the present invention, and FIG. 1B is a bottom view showing an enlarged view of the engagement state of the anchor part of FIG. [Figure 9] 10(a) is a side view showing another example of a support member of an installation jig for a rehabilitating pipe according to an embodiment of the present invention, and FIG.

[0017] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the dimensions of each part in the drawings used in the following description are not necessarily the same as the actual dimensions and can be changed as appropriate.

[0018] First, a rehabilitating pipe to which the present invention is applied will be described. As shown in Figure 1(a), the rehabilitation pipe X is formed by spirally winding a long, strip-shaped profile P and overlapping one of the two short-side ends of the profile P with the end of an adjacent wound profile P.

[0019] The rehabilitating pipe X has three or more ridges T extending in the extension direction of the profile P on surface p1, which forms the outer peripheral surface, with grooves S1 formed between these ridges T. Surface p2, which forms the inner peripheral surface of the rehabilitating pipe X, has a groove S2 formed at its short end into which one of the ridges T on one surface p1 fits and fixes it. As a result, when the profile P is spirally wound with its ends overlapping, the ridge T on one end of one surface p1 fits tightly into the groove S2 on the other surface p2, sealing the spaces between the profiles P and enabling adjacent profiles P to be reliably connected.

[0020] The rehabilitation pipe installation jig 1 shown in Figure 6(a) includes a support member 2 on which the rehabilitation pipe X is placed and supported, as shown in Figure 2, and an insertion member 3 for inserting the support member 2 below the rehabilitation pipe X, as shown in Figure 3.

[0021] As shown in Figure 2, the support member 2 has a mounting portion 4 on which the rehabilitation pipe X is placed, legs 5 that lift the mounting portion 4 from the inner surface of the existing pipe Y to form a gap between the mounting portion 4 and the inner surface, and anchor portions 6 that securely fix the mounting portion 4 to the rehabilitation pipe X.

[0022] The mounting portion 4 is formed by connecting a plurality of intermediate support rods 8 that are hung parallel to one side of a frame body 7 inside the frame body 7 that is formed into a rectangular shape using rod members.

[0023] The frame body 7 is formed with a horizontal dimension that can completely cover the bottom 9 of the rehabilitation pipe X in the width direction, and a vertical dimension of approximately 60 cm or less (i.e., the dimension in the direction facing the axis L1 of the rehabilitation pipe X) that can be inserted into a manhole. The intermediate support rod 8 is hung across the frame 7 in the short direction, and both ends thereof are firmly fixed to the frame 7 by welding or the like.

[0024] The frame 7 and the intermediate support rod 8 are made of rod members with a circular cross section and a diameter of about 5 mm to 10 mm. Steel materials such as iron are preferably used for the rod members. It is also possible to use a highly rigid resin material for the rod members.

[0025] 4, the legs 5 are formed by bending a rod member into a substantially U-shape, and the bottom of the U is fixed to the frame body 7 or the intermediate support rod 8 by welding or the like. To reliably fix the legs 5 to the frame body 7 or the intermediate support rod 8, auxiliary welding rods 15 may be provided on both sides of the frame body 7 or the intermediate support rod 8. The leg 5 is arranged on one side of the surface of the support portion 4 surrounded by the frame body 7, with the support portion 4 placed and fixed with the bottom of the U-shape facing back, and with the opening side of the U-shape facing the inner surface of the existing pipe Y.

[0026] The anchor portion 6 is formed of a solid or hollow round bar. The diameter of the round bar is determined so that it can fit between the ridges T formed on the outer surface of the strip-shaped profile P that forms the rehabilitation pipe X, and once fitted, the fitting cannot be easily released. The anchor portion 6 is preferably made of a steel material or a resin material. In this embodiment, the anchor portion 6 is made of steel and is welded to a frame 7 or an intermediate support rod 8 made of a steel rod.

[0027] The length of the anchor portion 6 of the round bar in the direction of the axis L2 is determined in accordance with the degree of curvature of the bottom portion 9 of the rehabilitating pipe X so that the end of the anchor portion 6 does not protrude from the groove of the protrusion T of the rehabilitating pipe X. The dimension of the anchor portion 6 in the axial direction can be formed to be about 100 mm or more.

[0028] As shown in Figure 3, the insertion member 3 of the rehabilitation pipe installation jig 1 has an attachment portion 10 that is attached to the mounting portion 4 or the leg portion 5, and an insertion rod portion 11 that inserts the attachment portion 10 between the rehabilitation pipe X and the existing pipe Y.

[0029] The attachment part 10 can be formed by a clip that can be opened and closed by operating the lever of the insertion rod part 11 to firmly grip and release the placement part 4 or the leg part 5 .

[0030] The insertion rod portion 11 has a grip 12 equipped with a lever for operating the attachment portion 10 at its base end, and the attachment portion 10 is fixed to its tip end. In this embodiment, the attachment portion 10 and the insertion rod portion 11 can have a configuration similar to that of a known so-called "magic hand." Furthermore, the insertion rod portion 11 is provided with an insertion position indicator 13 that indicates the distance from the pipe end edge of the rehabilitating pipe X, which serves as the insertion opening of the placing portion 4, to the tip of the insertion member 3.

[0031] The distance from a specific anchor portion 6 on the mounting portion 4 or leg portion 5 gripped by the mounting portion 10 to the insertion position indicator 13 is set to be the distance from the tube end (edge) of the wound profile P to a specific groove S1 on the outer surface of the specified profile P.

[0032] The insertion position indicator 13 may be configured by a string or tape attached to the insertion rod portion 11, or a rod or plate member attached so as to rise perpendicular to the axis of the insertion rod portion 11. When the insertion position indicator 13 is composed of a rod member or a plate member, the insertion position indicator 13 comes into contact with the edge of the end profile P to visually or tactilely indicate that the insertion rod portion 11 has been inserted to a predetermined position, or serves as a stop that prevents the insertion rod portion 11 from advancing any further. The rehabilitation pipe installation jig 1 has the above-described configuration.

[0033] Next, a method for forming a gap between the bottom 9 of the rehabilitating pipe X and the bottom surface y1 of the existing pipe Y using the rehabilitating pipe installation jig 1 will be described with reference to FIGS.

[0034] First, as shown in FIG. 5(a), a profile P is wound to form a rehabilitating pipe X having a predetermined length (for example, about 1.2 m) in the direction of its axis L1. Next, as shown in FIG. 5(b), air jacks 25 or the like are placed on both ends in the width direction below the bottom portion 9 of the formed rehabilitating pipe X to form a gap between the bottom surface y1 of the existing pipe Y.

[0035] As shown in Figures 6(a) and (b), the support member 2 is set by grasping a predetermined leg portion 5 or the intermediate support rod 8 above it and the welding auxiliary rods 15, 15 provided on both sides thereof with the mounting portion 10 of the insert member 3. Then, as shown in FIG. 7, the support member 2 is inserted below the bottom 9 of the lifted rehabilitating pipe X with its horizontal direction facing the width direction of the bottom 9 of the rehabilitating pipe X and its vertical direction facing the depth direction.

[0036] By using the insertion member 3, the support member 2 can be easily and accurately inserted below the rehabilitating pipe X, which is located on the other side of the pipe making machine (not shown, but attached to the front side of the rehabilitating pipe X) and is not visible from the front side. In addition, work can be done safely away from the pipe making machine. After inserting the insertion member 3 until the insertion position indicator 13 is positioned at the end pipe of the bottom 9 of the rehabilitating pipe X, the air jack is operated to lower the rehabilitating pipe X.

[0037] As a result, the rehabilitating pipe X approaches each of the anchor portions 6 provided above the multiple leg portions 5, and by applying the load or further pressure, it fits into the groove of the profile P at a position a predetermined distance from the pipe end of the rehabilitating pipe X in the direction of the axis L1, and the rehabilitating pipe X is fixed to the support member 2 as shown in Figures 7 and 8(a) and (b).

[0038] Furthermore, since the steel rods constituting the support portion 4 are thin and the intermediate support rods 8 are not stretched in the circumferential direction of the rehabilitating pipe X within the frame body 7, the support portion 4 bends to follow the curved shape of the bottom surface 9 of the rehabilitating pipe X under the load of the rehabilitating pipe X, as shown in Figure 7.

[0039] Once the support member 2 has been attached to the bottom 9 of the rehabilitating pipe X, the profile P is wound again to form a rehabilitating pipe X of a predetermined dimension in the direction of the axis L1, and after formation, the rehabilitating pipe X is pulled up using an air jack or the like, and the support member 2 is inserted below the rehabilitating pipe X. This process is repeated. After the formation of the rehabilitating pipe X and the installation of the support member 2 are completed, an anti-floating device (not shown) is attached to the upper bottom of the rehabilitating pipe X, for example.

[0040] When a filler such as mortar is poured between the rehabilitating pipe X and the existing pipe Y, the rehabilitating pipe X tends to float upward due to the buoyancy of the rehabilitating pipe X relative to the filler. However, since the rehabilitating pipe X is provided with anti-floating devices at predetermined intervals in the direction of its axis L1, the rehabilitating pipe X is prevented from floating up.

[0041] At least the height dimension of the support member 2 is ensured between the bottom 9 of the rehabilitating pipe X and the bottom surface y1 of the existing pipe Y. This makes it easier to inject the filler below the bottom 9 of the rehabilitating pipe X, and the filler solidifies once it has spread throughout. This has the effect of more reliably reinforcing the area around the rehabilitating pipe X, particularly below the bottom 9, with the filler.

[0042] Furthermore, by fixing the support member 2 to the underside of the bottom 9 of the rehabilitating pipe X with the anchor portion 6, it is possible to prevent the position of the support member 2 from shifting relative to the bottom 9 of the rehabilitating pipe X. In other words, it is possible to effectively prevent the support member 2 from shifting from the desired position relative to the rehabilitating pipe X due to vibrations, etc., that occur during the formation of the rehabilitating pipe X.

[0043] In addition, after the support member 2 is properly installed on the bottom 9 of the rehabilitation pipe X, the injection of filler material can prevent the support member 2 from moving relative to the bottom 9 of the rehabilitation pipe X and coming out of its designated position.

[0044] Furthermore, due to the lack of affinity between the filler and the rehabilitated pipe X, the filler is unlikely to adhere to the rehabilitated pipe X. Therefore, if the support member 2 is not fixed to the rehabilitated pipe X, after the filler below the bottom 9 has solidified, water may enter through a small gap between the rehabilitated pipe X and the filler, or an unexpected external force may be applied, causing the rehabilitated pipe X to peel off from the filler.

[0045] However, because the support member 4 of the present application is integrated with the rehabilitating pipe X by fixing the anchor portion 6 to the groove S1 on the outer peripheral surface of the rehabilitating pipe X, once the filler material containing the support member 4 hardens, the rehabilitating pipe X also becomes integrated with the filler material via the support member 4, making it difficult for the two to separate. Therefore, when the rehabilitating pipe and the solidified filler material are not integrated, water seeps in between them and they separate, and the rehabilitating pipe can be prevented from being deformed at the points where the filler material peels off due to water pressure or external pressure that may be applied to the rehabilitating pipe.

[0046] Furthermore, by providing (or providing in advance) a curvature in the lateral direction of the frame body 7 that is the same as the radius of the bottom 9 of the rehabilitating pipe X, the support member 2 serves as an aggregate that reinforces the shape of the bottom 9 of the rehabilitating pipe X. This has the effect of maintaining the shape of the bottom 9 of the rehabilitating pipe X in accordance with the design even when an external force due to an earthquake or the like is applied to the bottom 9 of the rehabilitating pipe X, and more stably maintaining the function of the rehabilitating pipe X.

[0047] In addition, since the support member 2 has the intermediate support rod 8 only in the vertical direction (i.e., the direction toward the axis L1 of the rehabilitating pipe X), it has the effect of making it easy to adjust the curvature of the mounting portion 4 to match the curvature of the bottom 9 of the rehabilitating pipe X. Furthermore, since the intermediate support rods 8 of the support member 2 are oriented either vertically or horizontally, the filler can be easily spread below the bottom 9 of the rehabilitating pipe X.

[0048] Furthermore, the anchor portions 6 are formed to a length that does not protrude from the grooves S1 on the outer surface of the profile P in accordance with the radius of the bottom portion 9 of the rehabilitating pipe X, and are provided so as to fit intermittently in the extension direction of the grooves S2. This provides the advantage that the support member 2 can be easily and stably fixed along the entire width direction of the bottom portion 9 of the rehabilitating pipe X.

[0049] In the above embodiment, the intermediate support rods 8 are configured to be provided in either the vertical or horizontal direction of the frame body 7, but the intermediate support rods 8 may be provided in both the vertical and horizontal directions at locations where it is desired to reinforce the structure of the support member 2. Specifically, when the intermediate support rods 8 are arranged in the vertical direction, the intermediate support rods 8 may also be configured to span some of the spaces between the intermediate support rods 8 in the horizontal direction. Furthermore, the intermediate support rods 8 may be arranged in a lattice pattern on the frame body 7.

[0050] Furthermore, the cross-sectional shape of the anchor part 6 perpendicular to the direction of the axis L2 may be any shape as long as it fits into the groove S1 in the outer surface p1 of the profile P and does not easily come out. Specifically, the cross-sectional shape of the anchor part 6 may be, for example, a triangular or semicircular shape tapering toward the tip so that it can be easily inserted into the groove S1 in the outer surface p1 of the profile P.

[0051] Furthermore, the support member 2 may be formed of a plurality of H-shaped steel or I-shaped steel, as shown in Figures 9(a) and (b), in addition to being provided with a frame body 7 and an intermediate support rod 8. In this case, since the H-shaped steel or I-shaped steel is inserted each time a profile P of a size that can be inserted below the bottom 9 of the rehabilitation pipe X is wound, it is preferable that the length be formed to be approximately the same as the size of the rehabilitation pipe X to be formed intermittently.

[0052] In addition, the support member 2 of this embodiment has the anchor portion 6 fixed to one flange 41 of the H-shaped steel or I-shaped steel so that it can fit into the groove S1 of the rehabilitation pipe X. In this support member 2, the flange 41 forms the mounting portion 40, and the web 42 and the other flange 43 form the leg portion 5.

[0053] With this configuration, the flange 41 having the anchor portion 6 is directed toward the groove S1 of the profile P of the rehabilitating pipe X, and the other end 42 of the flange is installed on the bottom surface y1 of the existing pipe Y, and the weight of the H-shaped steel or I-shaped steel allows the bottom 9 of the rehabilitating pipe X to be firmly fixed onto the bottom surface y1 of the existing pipe Y. Furthermore, in the above embodiment and its modified example, the support member 2 is installed at the bottom of the rehabilitating pipe X, but the support member 2 may be disposed at a location other than the bottom of the rehabilitating pipe X. [Explanation of symbols]

[0054] 1. Rehabilitation pipe installation jig 2 Support member 3 Inserts 4. Placement section 5 Legs 6 Anchor part 7 Frame 8 Intermediate support rod 9 Bottom of rehabilitation pipe 10 Mounting part 11 Insertion rod part 21 Flange (mounting part) 22 Web (leg) 23 Flange (leg) X rehabilitation pipe Y Existing pipe y1 Bottom of existing pipe

Claims

1. a support member for supporting the rehabilitating pipe at a distance from the inner surface of the existing pipe; the support member has an anchor portion that can be fixed to the rehabilitation pipe, The anchor portion is a rehabilitating pipe installation jig formed in a rod shape that can be fitted onto the outer peripheral surface of the rehabilitating pipe.

2. The support member includes a mounting portion on which the rehabilitating pipe is placed, and a leg portion that forms a gap between the mounting portion and the inner surface of the existing pipe, the leg portion is fixed to the mounting portion, The rehabilitating pipe installation jig according to claim 1 , wherein the anchor portion is provided on the placing portion.

3. the mounting portion includes a frame body that is surrounded on one side by a rod member, and an intermediate support rod that is fixed to the inside of the frame body; 3. The rehabilitating pipe installation jig according to claim 2, wherein the intermediate support rod is provided within the frame so that it can be oriented more in the axial direction of the bottom surface of the rehabilitating pipe than in the width direction.

4. The rehabilitating pipe installation jig according to claim 1 , wherein the anchor portion is formed to have a circular or semicircular cross section.

5. The rehabilitation pipe installation jig according to any one of claims 1 to 4, further comprising an insertion member that is detachably attached to the support member and that inserts the support member between the rehabilitation pipe and the existing pipe.

6. The rehabilitation pipe installation jig according to claim 5, wherein the insertion member has an attachment portion that is attached to the placement portion or the leg portion, and an insertion rod portion that inserts the attachment portion between the rehabilitation pipe and the existing pipe.

7. A rehabilitation pipe installation jig as described in claim 6, wherein the insertion rod portion is provided with an insertion position indicator that indicates the distance from the pipe end edge of the rehabilitation pipe, which serves as the insertion port of the placement portion between the rehabilitation pipe and the existing pipe, to the tip of the insertion member.

8. The rehabilitation pipe installation jig according to claim 7, wherein the insertion position indicator is configured by a string member, tape, paint, or a combination thereof attached to the insertion rod portion at a predetermined distance from the mounting portion.

9. The rehabilitation pipe installation jig of claim 7, wherein the insertion position indicator is constituted by a stop portion that protrudes from the outer surface of the insertion rod portion at a predetermined distance from the mounting portion and abuts against the pipe end edge.

10. 2. The installation jig for a rehabilitating pipe according to claim 1, wherein the support member is formed by providing an anchor portion on one of the flanges of an H-beam or an I-beam.

Images