JP2022066772A - Lining apparatus, and partial lining method using the same - Google Patents

Abstract

To solve the problem of a conventional partial lining method (pipe repairing method) in which: since there is an outer film between an inner circumferential surface of an underground pipeline to be repaired and an uncured layer, the uncured layer after curing cannot satisfactorily adhere to the inner surface of the underground pipeline to be repaired, after the completion of a partial repairing of the inner surface of the underground pipeline.SOLUTION: At a repairing position of an underground pipeline 1, an outer film reversing rope 29 attached to a lining apparatus tip portion 7 is pulled from the inside of a manhole 3a on a side ahead of a lining apparatus 4 of the underground pipeline 1, causing a linking part 6a of the lining apparatus to separate the tip portion 7 of the lining apparatus. An outer film 18 and the like that connect to the tip portion 7 of the lining apparatus move in the ahead direction together with the tip portion 7 of the lining apparatus, to allow the outer film 18 to separate from an outer circumferential surface of a lining material 17, thereby enabling the lining material 17 to more strongly adhere to the repairing inner surface of the underground pipeline 1.SELECTED DRAWING: Figure 14

Description

The present invention relates to a lining device inserted inside an underground pipeline and used for partial repair of the inner surface of the underground pipeline, and a partial lining method using the lining device.

Conventionally, a partial lining method that is inserted inside an underground pipeline and used for partial repair of the inner surface of the underground pipeline has been known (see FIG. 18). This partial lining method (tube repair method) is a tubular product with a three-layer structure in which an outer film 114, an uncured layer 115 in which glass fibers are impregnated with an uncured photocurable resin, and an inner film 116 are stacked in order from the outside. The 117 is arranged in the inner space of the underground pipeline 110, air is blown into the tubular object 117 to inflate the tubular object 117, and the outer film 114 is in close contact with the inner peripheral surface of the underground pipeline 110. Will be done. Then, the inner surface of the underground pipeline 110 is repaired by irradiating the tubular object 117 with ultraviolet rays from the inner space of the tubular object 117 and photocuring the photocurable resin of the uncured layer 115. After the inner surface of the underground pipeline 110 was repaired, the inner film 116 was removed from the tubular object 117 and taken out of the underground pipeline 110 (see Patent Document 1). Here, FIG. 18 is a schematic view showing an underground pipeline in which a conventional lining device is installed.

Japanese Unexamined Patent Publication No. 2018-65340

However, since the conventional partial lining method (pipe repair method) has a structure in which the outer film 114 is laminated on the outside of the uncured layer 115, the portion where the underground pipeline 110 in the underground conduit 110 bends. The uncured layer 115 can be protected even if it comes into contact with the uncured layer 115, and it is possible to prevent the uncured layer 115 from deteriorating and the uncured layer 115 from peeling off from the tubular object 117. Even if the photocurable resin of the uncured layer 115 is photocured by irradiating with ultraviolet rays, the outer film 114 exists between the inner peripheral surface of the underground pipeline 110 to be repaired and the uncured layer 115. The inner surface of the underground pipeline 110 to be repaired could not be sufficiently adhered to the photocured uncured layer 115, and after the partial repair of the inner surface of the underground conduit 110 was completed, the uncured layer after photocuring was completed. There was a problem that the layer 115 could be peeled off from the inner surface of the underground pipeline 110 to be repaired. Further, since the outer film 114 is in close contact with the uncured layer 115, the outer film 114 cannot be easily removed from the tubular object 117 like the inner film 116.

The present invention has been made in view of the above problems, and the lining material can be prevented from being more completely separated from the repair inner surface of the underground pipeline even after the partial repair of the inner surface of the underground pipeline is completed. It is an object of the present invention to provide a lining device capable of more completely repairing the inner surface of an underground pipeline and a partial lining method using the lining device.

In order to solve the above problems and achieve the above object, the lining according to the first aspect of the present invention is inserted inside the underground pipeline and used for partial repair of the inner surface of the underground pipeline. The device is detachably attached to and detachable from the lining device main body formed to have a longer lateral length with respect to the vertical cross section, the lining device connecting portion provided at the tip of the lining device main body, and the tip of the lining device connecting portion. The lining device main body is formed in a substantially rod-like shape, and has a center member provided along the transverse longitudinal direction and a hollow substantially columnar shape, and the outer peripheral surface of the center member is formed. A flexible tube to be covered, a light emitting member provided on the outer peripheral surface of the flexible tube and irradiating light outward, and a hollow substantially cylindrical shape having light transmission and a light emitting member arranged on the outer peripheral surface. A flexible hose that covers the outer peripheral surface of the flexible tube, and a silicon sleeve that has a hollow substantially cylindrical shape made of light-transmitting silicon and that covers the outer peripheral surface of the flexible hose, and light transmission. It is made of an inner film that covers the outer peripheral surface of the silicon sleeve and a photocurable material, and is provided on the outer peripheral surface of the inner film in a hollow substantially cylindrical shape. The lining material that is in close contact with the inner surface of the middle pipeline and the tip end are connected to the lining device connecting portion, and the outer peripheral surface of the lining material is covered from the tip portion toward the rear end of the lining material, and the outer circumference of the lining material is covered. It has an outer film that is folded outward at a position where substantially the entire surface is covered and is oriented toward the tip of the lining material, and the rear end thereof is bonded to the tip of the lining device. The outer film is an underground pipe. Before the silicon sleeve is inserted into the path and expanded radially, the tip of the lining device is pulled from the manhole on the front side of the underground pipeline, so that the tip of the lining device is separated from the lining device connecting portion. By moving in the forward direction together with the tip of the lining device, everything is separated from the outer peripheral surface of the lining material, and the tip of the lining device and the connecting portion of the lining device are connected and held in the underground pipeline. It is something to do.

Even if the lining material is photo-cured with the outer film left between the lining material and the underground pipeline, a layer of the outer film remains between the lining material and the underground pipeline. The adhesive force for adhering to the pipeline is weakened, but according to the present invention, the tip portion is connected to the lining device connecting portion, and the outer peripheral surface of the lining material is covered from the tip portion to cover the rear of the lining material. An outer film is provided that faces the end direction, is folded outward at a position where almost the entire outer peripheral surface of the lining material is covered, and faces the front end direction of the lining material, and the rear end portion is bonded to the front end portion of the lining device. Before the outer film is inserted into the underground pipeline and the silicon sleeve is radially inflated, the tip of the lining device is pulled from inside the manhole on the front side of the underground pipeline, so that the tip of the lining device is pulled. By separating from the lining device connecting portion and moving in the forward direction together with the lining device tip, everything is separated from the outer peripheral surface of the lining material, so that the outer film can be removed from the outer peripheral surface of the lining material with a simple operation. At the same time, the outer film does not hinder the adhesion between the inner surface of the underground pipeline and the lining material, and the lining material can be more strongly adhered to the repaired inner surface of the underground pipeline. As a result, even after the partial repair of the inner surface of the underground pipeline is completed, the lining material becomes difficult to separate from the repair inner surface of the underground pipeline, and the inner surface of the underground pipeline can be repaired more completely.

The second aspect of the present invention is the lining device according to the first aspect, further comprising a glass tape attached from a substantially front end portion to a substantially rear end portion of the outer film, and a glass tape. Is characterized in that the outer film is attached to the opposing surface on the inner surface side in a folded state.

According to the present invention, since the glass tape is attached from the substantially tip portion to the substantially rear end portion of the outer film, even when the outer film is pulled out in the forward direction together with the tip portion of the lining device, the pulling force is sufficient. Can retain strength.

The third aspect of the present invention is the lining device according to the first aspect, in which the light emitting member is composed of an LED member, and the LED member is the outer peripheral surface of the flexible tube from the tip end side of the center member. On the outer peripheral surface of the flexible tube from the rear end side of the center member, adjacent to the front-rear direction LED member arranged spirally on the top toward the rear end portion and each of the spiral spiral lines of the front-rear direction LED member. The front-rear direction LED member is spirally arranged toward the tip portion, the front-rear direction LED member is irradiated with light by a current supplied from the front side, and the rear-front direction LED member is on the rear side. It is characterized in that it is irradiated with light by a current supplied from.

In the LED member, the LED member on the power supply side emits bright light, and the amount of light emitted decreases toward the tip due to the voltage drop. However, according to the present invention, the LED member in the front-rear direction is supplied by the current supplied from the front side. The LED member is irradiated with light, and the rear-front LED member is irradiated with light by a current supplied from the rear side, so that the amount of light emitted from each of the front-rear LED member and the rear-front LED member can be complemented. The amount of light emitted can be almost uniform as a whole. As a result, the lining material can be photo-cured almost uniformly.

The fourth aspect of the present invention is the lining device according to the third aspect, and the front-rear direction LED members are parallel to a plurality of front-rear direction parallel LED members to which current is supplied from the front side. The rear-front parallel LED member is composed of a plurality of rear-front parallel LED members to which current is supplied from the rear side in parallel, and the front-rear parallel LED member and the rear-front parallel LED member are It is characterized by being arranged in a staggered manner.

According to the present invention, the front-rear direction LED member is configured by a plurality of front-rear direction parallel LED members to which current is supplied from the front side in parallel, and the rear-front direction LED member is respectively supplied with current from the rear side. A plurality of rear-front parallel LED members are configured in parallel, and the front-rear parallel LED members and the rear-front parallel LED members are arranged alternately. The length of one of the directional parallel LED members can be shortened. As a result, the voltage drop can be reduced for each of the front-rear parallel LED member and the rear-front parallel LED member, and the decrease in the amount of light emission can be reduced. The material can be photo-cured more reliably in a short time.

The fifth aspect of the present invention is the lining device according to the fourth aspect, in which the front-rear parallel LED member and the rear-front parallel LED member are branched current lines branched from a single current line. It is characterized in that substantially the same amount of current is supplied to each of them.

According to the present invention, the front-rear direction parallel LED member and the rear-front direction parallel LED member are supplied with substantially the same amount of current by the branched current line branched from the single current line, so that the current can be supplied from the current line. Variation can be eliminated by the supplied current. As a result, the amount of light emitted can be made substantially uniform for the entire LED member.

The sixth aspect of the present invention relates to the lining device according to the first aspect, wherein the lining device main body has flexibility in the transverse longitudinal direction.

According to the present invention, since the lining device main body has flexibility in the lateral longitudinal direction, even if the underground pipeline has a step or a bent portion, the lateral longitudinal along the step or the bent portion. The main body of the lining device having flexibility in the direction can be moved, and the lining material is photocured by the LED member arranged on the outer peripheral surface of the flexible tube having flexibility, and the inner surface of the underground pipeline is exposed. Can be repaired.

The seventh aspect of the present invention is the lining device according to the first aspect, which has a thread shape and is arranged between the silicon sleeve and the inner film, and the tip thereof is bonded to the tip portion of the lining device main body. Further, the rear end has an air bleeding yarn body bonded to the rear end portion of the lining apparatus main body, and the air pool generated between the silicon sleeve and the inner film is formed along the silicon sleeve and the inner film along the air bleeding yarn body. It can be collected on both ends of the.

When compressed air is supplied between the flexible hose and the silicone sleeve, the silicone sleeve expands almost uniformly and radially to the diameter of the inner film, but when the silicone sleeve expands to the diameter of the inner film. Since the expansion of the silicon sleeve is restrained by the lining material that covers the outer periphery of the inner film, the vicinity of both ends of the silicon sleeve expands in advance, and both ends of the lining material adhere to the inner surface of the underground pipeline. Will be done. Then, when the adhesion to the inner surface of the underground pipeline proceeds from both ends of the lining material toward the center, an air pool is generated in a slight gap between the silicon sleeve and the inner film near the center. When lining is performed at the bent or bent part of the underground pipeline with an air pool generated between the silicon sleeve near the center and the inner film, the bent or bent part of the underground pipeline is performed. Due to the difference between the curve radius on the outside (extension side) and the curve radius on the inside (contraction side) of the line, air pools collect on the inside (contraction side) of the line between the inner film and the silicon sleeve. Wrinkles occur on the inner film inside the pipeline (shrinkage side), and the wrinkles on the inner film remain as wrinkles on the finished surface of the lining material when the lining material is photo-cured. Since the silicon sleeve and the inner film are arranged between the inner film and the inner film, the tip is bonded to the tip of the lining device body and the rear end is bonded to the rear end of the lining device body. The air pool generated between them can be collected on both ends of the silicon sleeve and the inner film along the air vent thread body. As a result, the silicon sleeve and the inner film can be brought into close contact with each other, and the inner surface of the underground pipeline can be repaired more completely without leaving wrinkles on the lining material that repaired the inner surface of the underground pipeline.

The eighth aspect of the present invention relates to the lining device according to the first aspect, and the lining material is configured by laminating an inner lining material on the inner film side and an outer lining material on the outer film side. The inner lining material is made of a hollow substantially columnar shape in which glass fibers are woven into a mesh shape and has elasticity. The outer lining material has a mesh of glass fibers rather than the inner lining material. The outer lining material has an inner lining material and one circumference due to the radial expansion of the silicon sleeve. Since the outer peripheral surface of the outer lining material after the mesh is moved so as to be displaced in the circumferential direction and the diameter is expanded, it becomes difficult for voids to be generated in the mesh of the glass fiber, and water can be discharged from the mesh of the glass fiber even after photocuring. It is characterized by having a watertightness that does not substantially penetrate.

When lining is performed at the bent or bent part of the underground pipeline, the finished surface of the lining material on the inside of the pipeline (contracted side) due to the difference in the curve radius between the outside of the pipeline (extended side) and the inside of the pipeline (contracted side). Wrinkles are likely to occur, but according to the present invention, the outer lining material is wound around the outer peripheral surface of the inner outer lining material having a substantially cylindrical shape having elasticity for two or more turns, so that the silicon sleeves are radially formed. When inflated, the inner lining material stretches in a shape that follows the silicon sleeve, and the outer lining material follows it so that the outer peripheral surfaces of the inner lining material and the outer lining material after the first lap are displaced in the circumferential direction. Will move to. As a result, even when lining is performed at a bent portion or a bent portion of the underground pipeline, the outer lining material is stretched without wrinkles, so that it is possible to prevent wrinkles from occurring on the finished surface of the lining material. Further, when the lining material is composed of only the elastic lining material, when the elastic lining material is expanded in a shape following the silicon sleeve due to the expansion of the silicon sleeve, the glass constituting the elastic lining material is formed. Voids are generated in the mesh-like mesh of the fiber, and when the lining material is photo-cured, the voids become small voids in the lining material, and water may leak from the small voids in the lining material. Since the outer lining material formed from a planar shape in which glass fibers are woven more densely than the inner lining material on the outer peripheral surface of the lining material is wound around two or more turns, the silicon sleeve is expanded radially. In this case, the outer lining material is moved so as to deviate in the circumferential direction from the outer peripheral surfaces of the inner lining material and the outer lining material after the first round, and the diameter is expanded. As a result, voids are less likely to occur in the mesh of the glass fiber, the outer lining material can be watertight even after photo-curing, and the outer peripheral surface of the inner lining material is wound around two or more turns, so that light is applied. Even if small voids are formed in the inner lining material after curing, water leakage can be prevented by the outer lining material. Furthermore, when the lining material is composed only of the elastic lining material, the elastic lining material is expanded in a shape that follows the silicon sleeve due to the expansion of the silicon sleeve, and the elastic lining material is damaged on the inner surface of the underground pipeline. If there is a spot, the elastic lining material enters the defect on the inner surface of the underground pipeline due to the expansion of the silicon sleeve, and the defect on the inner surface of the underground pipeline greatly expands. According to this, since the outer lining material in which the watertight glass fiber is densely woven is wrapped around the outer peripheral surface of the elastic inner lining material, the outer side of the outer side of the silicon sleeve even if the silicon sleeve expands. The lining material does not enter the defective portion on the inner surface of the underground pipeline, and it is possible to prevent the defective portion on the inner surface of the underground pipeline from spreading significantly.

The ninth aspect of the present invention is the lining device according to the first aspect, in which the tip end portion is coupled to the tip end portion of the lining device and the outer peripheral surface of the outer film is covered from the tip end portion. Further, it has a protective sheet in which the rear end portion is bonded to the outer surface of the folded portion of the outer film toward the folded portion of the outer film, and the protective sheet is inserted into the inside of the underground pipeline. It is characterized by protecting the outer film from damage.

The tenth aspect of the present invention is a partial lining method using the lining device according to the ninth aspect, in which the lining device is inserted into the manhole from the ground and the inside of the manhole. The lining device inserted into the manhole by the insertion step is inserted into the underground pipeline, and the lining device inserted into the underground pipeline by the lining device pipe insertion step is the underground pipeline. By arriving at the repair position of the lining device and pulling the tip of the lining device from the manhole on the front side of the lining device at that position, the tip of the lining device is separated from the lining device connecting portion and coupled with the lining device tip. By moving the outer film and the protective sheet in the forward direction together with the tip of the lining device, the outer film is separated from the outer peripheral surface of the lining material, and the outer film and the protective sheet are bonded to the tip of the lining device and the connecting portion of the lining device. The outer film removal process, in which the sheet is held in the underground conduit, and compressed air is supplied between the flexible hose and the silicon sleeve, and the compressed air causes the silicon sleeve to expand radially, resulting in silicon sleep. The inner surface of the underground pipeline to be repaired by the silicon sleeve diameter expansion step in which the lining material on the outer peripheral side is in close contact with the inner surface of the underground pipeline to be repaired, and the light emitting member emits light. After the lining material photo-curing step in which the lining material adhered to the lining material is photo-cured and the lining material photo-curing step are executed, the compressed air between the flexible hose and the silicon sleeve is exhausted, and the lining device is placed in the ground. Lining device that is pulled out of the pipeline The lining device that is pulled out of the underground pipeline by the lining device outside the pipe pulling process is pulled up to the ground through the manhole. Is.

According to the present invention, the lining device inserted into the underground pipeline by the lining device in-pipe insertion step arrives at the repair position of the underground pipeline, and at that position, the tip of the lining device is inserted from the manhole on the front side of the lining device. By pulling the portion, the tip of the lining device is separated from the connecting portion of the lining device, and the outer film and the protective sheet bonded to the tip of the lining device move in the forward direction together with the tip of the lining device to move the outer film. Is separated from the outer peripheral surface of the lining material, so that the outer film does not hinder the adhesion between the inner surface of the underground pipeline and the lining material, and the lining material can be more strongly adhered to the repair inner surface of the underground pipeline. As a result, even after the partial repair of the inner surface of the underground pipeline is completed, the lining material becomes difficult to separate from the repair inner surface of the underground pipeline, and the inner surface of the underground pipeline can be repaired more completely.

According to the lining device of the present invention and the partial lining method using the lining device, the lining material is more difficult to separate from the repair inner surface of the underground pipeline even after the partial repair of the inner surface of the underground pipeline is completed. It is possible to repair the inner surface of the underground pipeline more completely.

It is a schematic diagram which shows the inside of the underground pipeline from the manhole where the lining device in one Embodiment of this invention is used. It is a perspective view of the lining device. (A) It is a front view of the lining device. (B) It is a figure which shows the cross section AA of FIG. 3 (a). It is a figure which shows the BB cross section of FIG. 3A. (A) It is a tip enlarged view of the BB cross section of FIG. 3 (a). (B) It is a rear end enlarged view of the BB cross section of FIG. 3 (a). It is a figure which shows the CC cross section of FIG. 3 (a). It is a layout explanatory drawing of each configuration of the lining apparatus in one Embodiment of this invention. It is a perspective view of the flexible tube of the lining device. (A) It is a figure which shows the front-rear direction LED member and the rear-forward direction LED member of the lining device separately. (B) It is a combination explanatory drawing of the front-rear direction LED member and the rear-forward direction LED member of the lining device. (C) It is a figure which shows the DD cross section of FIG. 9 (b). It is a perspective view of the flexible hose attached with the silicon sleeve spacer of the lining device. (A) It is a figure which shows the inner lining material of the lining material of the same lining apparatus. (B) It is a figure which shows the outer lining material of the lining material of the same lining apparatus. (C) It is a figure which shows the schematic cross section of the lining material of the same lining apparatus. (A) It is a developed view of the outer film to which the glass tape of the lining apparatus is attached. (B) It is a figure which shows the middle of folding back of the outer film to which the glass tape of the lining apparatus was attached. (C) It is a figure which shows the right-hand side surface of FIG. 12 (b). It is a schematic block diagram in which the lining apparatus is used. (A) It is a figure which shows the state which the lining device is inserted into the underground pipeline. (B) It is a figure which shows the state which the outer film of the lining apparatus is separated from the outer peripheral surface of a lining material. (C) It is a figure which shows the state which the outer film of the lining apparatus is held in the underground pipeline together with the protective sheet while being coupled to the lining apparatus tip portion and the lining apparatus connecting portion. It is a flowchart of the partial lining method using the same lining device. (A) It is a figure which shows the situation which the silicon sleep of the lining apparatus is expanded radially. (B) It is a figure which shows the situation which the lining material of the lining apparatus is photo-cured. (C) It is a figure which shows the inner lining material and the outer lining material before the diameter expansion of the lining apparatus. (D) It is a figure which shows the inner lining material and the outer lining material after the diameter expansion of the lining apparatus. It is a figure which shows the situation which confirms the finished state of the underground pipeline repaired by the lining device. It is a schematic diagram which shows the underground pipeline where the conventional lining device is installed.

First, the underground pipeline in which the lining device is used will be described. Here, FIG. 1 is a schematic view showing the inside of the underground pipeline from the manhole where the lining device according to the embodiment of the present invention is used.

As shown in FIG. 1, a power cable (electric wire) 2 or the like is laid in the underground pipeline 1, and a manhole 3 is provided for each underground pipeline 1 extending from 10 m to 400 m. Then, when inspecting the power cable (electric wire) 2 in the underground pipeline 1, the operation is performed by entering the manhole 3. Here, the pipe diameter of the underground pipe 1 is 100 mm to 200 mm, and the power cable (electric wire) 2 is inserted while being substantially in contact with the ground pipe 1, but it is shown in FIG. 1 for the sake of clarity. The underground pipeline 1 and the power cable (electric wire) 2 are shown separately.

Next, the lining device according to the embodiment of the present invention will be specifically described. Here, FIG. 2 is a perspective view of the lining device according to the embodiment of the present invention, FIG. 3 (a) is a front view of the lining device, and FIG. 3 (b) is A-A of FIG. 3 (a). FIG. 4 is a view showing a cross section A, FIG. 4 is a view showing a cross section BB of FIG. 3 (a), and FIG. 5 (a) is an enlarged view of the tip of the cross section BB of FIG. 5 (b) is an enlarged view of the rear end of the BB cross section of FIG. 3 (a), FIG. 6 is a view showing the CC cross section of FIG. 3 (a), and FIG. 7 is one of the present invention. It is a layout explanatory drawing of each configuration of the lining apparatus in embodiment.

The lining device 4 is inserted inside the underground pipeline 1 and is used for partial repair of the inner surface of the underground pipeline 1. Specifically, it is used to partially repair the inner surface portion of the underground pipeline 1 when the underground pipeline 1 is deteriorated over time or is externally damaged. Here, the partial repair of the inner surface of the underground pipeline 1 is performed in a state where the power cable (electric wire) 2 or the like is not laid in the underground pipeline 1. The lining device 4 includes a lining device main body 5, a lining device connecting portion 6, a lining device front end portion 7, and a lining device rear end portion 8 (see FIG. 2). Here, in FIG. 2, in order to make it easier to see, the members outside the silicon sleeve 15 of the lining device main body 5 are omitted.

The lining device main body 5 is configured to have a shape having a long lateral length with respect to a vertical cross section, and has a center member 9, a flexible tube 10, an LED member 11, a flexible hose spacer 12, and flexibility. It has a hose 13, a silicon sleeve spacer 14, a silicon sleeve 15, an inner film 16, a lining material 17, an outer film 18, and a protective sheet 19 (see FIGS. 4 and 5).

The center member 9 is formed in a substantially rod shape and is provided along the central axis in the lateral longitudinal direction of the lining device 4 (see FIGS. 4 and 5). The center member 9 is manufactured of a stainless wire and has flexibility in the transverse longitudinal direction.

The flexible tube 10 is formed in a substantially hollow columnar shape, and the outer peripheral surface of the center member 9 is covered (see FIGS. 4, 5, and 8). The flexible tube 10 is made of stainless steel and has flexibility in the transverse longitudinal direction. In the present embodiment, the flexible tube 10 is manufactured using stainless steel as a material, but the present invention is not limited to this, and the flexible tube 10 may be manufactured using a material other than stainless steel. Here, FIG. 8 is a perspective view of a flexible tube of a lining device according to an embodiment of the present invention.

The LED member 11 is provided on the outer peripheral surface of the flexible tube 10 and is a member that irradiates light outward (see FIGS. 4 and 5). Specifically, the LED member 11 is composed of an LED tape, and is a front-rear direction LED member 11a spirally arranged on the outer peripheral surface of the flexible tube 10 from the tip end side of the center member 9 toward the rear end portion. The rear-front LED is spirally arranged on the outer peripheral surface of the flexible tube 10 from the rear end side of the center member 9 toward the tip while adjacent to each spiral line of the front-rear LED member 11a. It is composed of a member 11b (see FIGS. 7 and 9 (b)). In the present embodiment, the LED member 11 is made of an LED tape, but the present invention is not limited to this, and the LED member 11 may be made of a member other than the LED tape, and further, light is emitted toward the outside including the LED member 11. It may be composed of a light emitting member to be irradiated. Further, in the present embodiment, the LED member 11 is composed of the front-rear direction LED member 11a and the rear-forward direction LED member 11b, but the present invention is not limited to this, and other embodiments such as being composed of one LED member 11. It may be configured from. Here, FIG. 9 (a) is a diagram showing the front-rear direction LED member and the rear-front direction LED member of the lining device according to the embodiment of the present invention separately, and FIG. 9 (b) is a diagram showing the front-rear direction LED of the lining device. It is an explanatory diagram of the combination of the member and the rear-forward LED member, and FIG. 9 (c) is a diagram showing a DD cross section of FIG. 9 (b).

As described above, the front-rear direction LED member 11a is spirally arranged on the outer peripheral surface of the flexible tube 10 from the tip end side of the center member 9 toward the rear end portion. The front-rear direction LED member 11a is composed of a plurality of front-rear direction parallel LED members 11x to which current is supplied from the current line 20 on the front side of the center member 9 in parallel (see FIG. 9A). .. Specifically, a current is supplied to each of the front-rear parallel LED members 11x by the branch current line 20a branched from the current line 20 on the front side of the center member 9. Then, the front-rear direction LED member 11a is irradiated with light by the current supplied from the front side from the current line 20. That is, the branch current line 20a branched from the current line 20 on the front side of the center member 9 is connected to the front side of the front-rear parallel LED member 11x, and is supplied by the current supplied from the current line 20 on the front side of the center member 9. It is irradiated with light. Here, the current line 20 on the front side of the center member 9 is connected to the current line 221. Further, "the front-rear direction parallel LED members 11x are configured in parallel" means that a plurality of front-rear direction parallel LED members 11x are wound in parallel in the same direction. ". In the present embodiment, the front-rear direction LED member 11a is configured by a plurality of front-rear direction parallel LED members 11x in parallel, but the present invention is not limited to this, and the front-rear direction LED member 11a may be configured by one non-parallel direction LED member 11a. .. In this case, the current line 20 on the front side of the center member 9 is connected to the front side of the LED member 11a in the front-rear direction, and is irradiated with light by the current supplied from the current line 20. Further, in the present embodiment, the current is supplied to the front-rear parallel LED members 11x by the branched current lines 20a branched from the current lines 20 on the front side of the center member 9, but the present invention is not limited to this. , The current may be supplied to each of the front-rear parallel LED members 11x from the separate current lines on the front side of the center member 9 corresponding to the respective front-rear parallel LED members 11x.

As described above, the rear-front LED member 11b spirals from the rear end side of the center member 9 to the outer peripheral surface side of the flexible tube 10 while being adjacent to the spiral lines of the front-rear LED member 11a. It is arranged toward the tip. As for the rear-front LED member 11b, similarly to the front-rear LED member 11a, a plurality of rear-front parallel LED members 11y to which current is supplied from the current line 21 on the rear side of the center member 9 are configured in parallel. The front-rear parallel LED member 11a and the rear-front parallel LED member 11b are arranged alternately (see FIGS. 9 (a), 9 (b), and 9 (c)). Specifically, a current is supplied to each of the rear-front parallel LED members 11y by the branch current line 21a branched from the current line 21 on the rear side of the center member 9. Then, the rear-front LED member 11b is irradiated with light by the current supplied from the rear side from the current line 21. That is, the branch current line 21a branched from the current line 21 on the rear side of the center member 9 is connected to the rear side of the rear-front parallel LED member 11y, and the current supplied from the current line 21 on the rear side of the center member 9 Is irradiated with light. Here, the current line 21 on the rear side of the center member 9 is connected to the current line 221. As described above, the front-rear parallel LED member 11x and the rear-front parallel LED member 11y are substantially the same by the branched current lines 20a and 21a branched from the single current line 221 via the current lines 20 and 21. Since a large amount of current is supplied, it is possible to eliminate the variation due to the current supplied from the current line. As a result, the amount of light emitted can be made substantially uniform for the entire LED member 11. Further, "the rear-front parallel LED member 11y is configured in parallel" means that a plurality of rear-front parallel LED members 11y are wound in parallel in the same direction as in the above-mentioned front-rear direction parallel LED member 11x. It means that it has been done. ". In the present embodiment, the rear-front LED member 11b is configured by a plurality of rear-front parallel LED members 11y in parallel, but the present invention is not limited to this, and the rear-front LED member 11b is composed of one non-parallel rear-front LED member 11b. You may. In this case, the current line 21 on the rear side of the center member 9 is connected to the rear side of the rear-front LED member 11b, and is irradiated with light by the current supplied from the current line 21. Further, in the present embodiment, it is assumed that the current is supplied to the rear-front parallel LED member 11y by the branch current line 21a branched from the current line 21 on the rear side of the center member 9, but this is not limited to this. Instead, the current is supplied to the rear-front parallel LED member 11y from the separate current lines on the rear side of the center member 9 corresponding to the rear-front parallel LED member 11y. May be good.

The flexible hose spacer 12 is provided on the outer surface of the flexible tube 10 and is formed to be higher in height than the LED member 11 provided on the outer peripheral surface of the flexible tube 10 (see FIGS. 5 and 7). Specifically, the flexible hose spacer 12 has a C-shape and is fitted along the spiral lines of the LED member 11 provided on the outer peripheral surface of the flexible tube 10 from the C-shaped opening. , It is configured to have a higher shape than the LED member 11 provided on the outer peripheral surface of the flexible tube 10. As a result, the LED member 11 on the outer surface of the flexible tube 10 and the flexible hose 13 described later can be prevented from coming into contact with each other, and a space is secured between the flexible tube 10 and the flexible hose 13. Can be done.

The flexible hose 13 has a hollow substantially cylindrical shape and a hose shape having light transmission, and is provided so as to cover the outer peripheral surface of the flexible tube 10 in which the LED member 11 is arranged on the outer peripheral surface (FIG. 5). , FIG. 7, FIG. 10). A spiral convex portion 13a is formed on the outer peripheral surface of the flexible hose 13 and has flexibility in the transverse longitudinal direction. A sealed space is formed between the flexible tube 10 and the flexible hose 13. As described above, since the LED member 11 is arranged in the sealed space between the flexible pipe 10 and the flexible hose 13, even if water is present in the underground pipe 1, the underground pipe can also be used. Even in a humid environment, deterioration of insulation performance can be prevented. In the present embodiment, as the flexible hose 13, "V.S.-A type common to suction and delivery" of Kanaflex Corporation Co., Ltd. is used. Here, FIG. 10 is a perspective view of a flexible hose to which a silicon sleeve spacer of the lining device according to the embodiment of the present invention is attached.

The silicon sleeve spacer 14 is formed to be higher in height than the convex portion 13a formed on the outer peripheral surface of the flexible hose 13 (see FIG. 10). Specifically, the silicon sleeve spacer 14 has a circular shape having an opening, and is fitted along each spiral line of the convex portion 13a formed on the outer peripheral surface of the flexible hose 13 from the circular opening. It is configured to have a shape higher than the convex portion 13a formed on the outer peripheral surface of the flexible hose 13 (see FIG. 10). As a result, the flexible hose 13 and the silicon sleeve 15 described later can be prevented from coming into contact with each other, and a space can be secured between the flexible hose 13 and the silicon sleeve 15.

The silicon sleeve 15 is a hollow substantially cylindrical shape made of light-transmitting silicon and having an outer diameter of 92 mm, and is provided so as to cover the outer peripheral surface of the flexible hose 13 (FIGS. 4 and 5). reference).

The inner film 16 is provided to prevent the lining material 17 before curing and the silicon sleeve 15 from adhering to each other, has a hollow substantially cylindrical shape with a diameter of 115 mm and has light transmission, and the outer peripheral surface of the silicon sleeve 15 has a surface. It is provided so as to be covered (see FIGS. 4 and 5). Specifically, the tip of the inner film 16 is bonded to the outer periphery of the lining device connecting portion 6a (tip) with a binding band 22a, and the outer peripheral surface of the silicon sleeve 15 is covered from the tip. In this way, the rear end portion of the inner film 16 is fixed and bonded to the outer peripheral portion of the lining device connecting portion 6b (rear end portion) with a binding band 22b (see FIG. 5). .. As the inner film 16, a polyethylene film, a polypropylene film, a polyethylene terephthalate film, or the like can be used. Then, as will be described later, the inner film 16 is peeled off after the lining material 17 is cured. In the present embodiment, the inner film 16 is formed in a hollow substantially cylindrical shape, but the present invention is not limited to this, and any form other than the hollow substantially cylindrical shape can be used as long as the outer peripheral surface of the silicon sleeve 15 is covered. You may.

The lining material 17 is a member for partially repairing the underground pipeline 1, and is made of a photocurable material impregnated with a photocurable resin and has a hollow substantially cylindrical shape having an inner diameter substantially the same as that of the inner film 16. Is provided on the outer peripheral surface of the inner film 16 (see FIGS. 4 and 5). Specifically, the lining material 17 includes an inner lining material 17a made of "glass fiber cloth impregnated with a photocurable resin" on the inner film 16 side and "photocurable resin impregnated" on the outer film 18 side. It is formed of a double structure formed by laminating an outer lining material 17b made of "glass fiber cloth" (see FIG. 11). Here, the lining material 17 has a lining length (length in the longitudinal direction) of 1500 mm. The inner lining material 17a has a structure in which glass fibers are woven into a mesh shape and has an elastic hollow substantially cylindrical shape, and the outer peripheral surface of the inner film 16 is covered. The outer lining material 17b has a flat shape in which glass fibers are woven more densely than the inner lining material 17a, and before the diameter expansion (before air supply), the outer peripheral surface of the inner lining material 17a is lapped 2.5 times. It is covered so as to be rolled (see FIG. 11). In this way, the outer lining material 17b covers the outer peripheral surface of the inner lining material 17a so as to be wound around 2.5 times. Then, in a state where the silicon sleeve 15 is radially expanded and expanded in diameter, the outer lining material 17b follows the expansion of the diameter of the silicon sleeve 15 and is the outer peripheral surface of the inner lining material 17a and the outer lining material 17b after the first lap. Is wound around the outer peripheral surface of the inner lining material 17a twice, and the lining material 17 generates a tightening force in the inner direction, which is the direction of the silicon sleeve 15. It comes into close contact with the inner film 16. As the outer lining material 17b, in the present embodiment, 100 g / m ² of "ultra-thin and dense plain weave microglass cloth (manufactured by" Featherfield Co., Ltd. ")" and a thickness of 0.096 mm (approximately 0.1 mm). As the inner lining material 17a, a stretchable "seamless cloth (" manufactured by SHINDO Co., Ltd. ")" is used. Glass fibers are woven vertically and horizontally in the outer lining material 17b, and the gap between the stitches is smaller than that of the inner lining material 17a (see FIGS. 11 (a) and 11 (b)). Here, the space between the lines on the side surface of the outer lining material 17b in FIG. 11B is knitted with glass fiber, and there is almost no gap in the stitches. Then, when the LED member 11 emits light, the lining material 17 is photo-cured via a light-transmitting flexible hose 13, a silicon sleeve 15, and an inner film 16. Further, the outer lining material 17b moves so as to deviate in the circumferential direction from the outer peripheral surfaces of the inner lining material 17a and the outer lining material 17b after the first round due to the radial expansion of the silicon sleeve 15 before photo-curing. Since the diameter is expanded, voids are less likely to occur in the mesh of the glass fiber. As a result, the outer lining material 17b after photo-curing has a watertightness in which water does not substantially permeate through the mesh of the glass fiber. In the present embodiment, after photo-curing, the outer lining material 17b is wound around the outer peripheral surface of the inner lining material 17a twice, but the present invention is not limited to this, and 2.5 is applied to the outer peripheral surface of the inner lining material 17a. Two or more laps such as laps and three laps may be wound. Here, FIG. 11A is a diagram showing an inner lining material of the lining material of the lining device according to the embodiment of the present invention, and FIG. 11B is a diagram showing an outer lining material of the lining material of the lining device. 11 (c) is a diagram showing a schematic cross section of the lining material of the lining device. Here, in FIG. 11C, the outer lining material 17b is wound around the inner lining material 17a with a gap so as to be easy to understand.

The outer film 18 is provided to prevent the lining material 17 from coming into contact with the inner surface of the underground pipeline 1 and damaging the lining material 17, and has a thickness of 0.03 mm, a hollow cross-sectional shape, and an outer circumference of the lining material 17. It is provided so that the surface is covered. Specifically, the outer film 18 has a tip end portion bonded to the outer peripheral portion of the lining device connecting portion 6 by being fixedly bound by a binding band 23a, and the outer peripheral surface of the lining material 17 is covered from the tip end portion of the outer film 18. In this way, toward the rear end of the lining material 17, and then folded outward at a position where substantially the entire outer peripheral surface of the lining material 17 is covered, toward the tip end of the lining material 17, after the outer film 18. The end portion is fixedly bound to the outer peripheral portion of the tip portion 7 of the lining device with a binding band 23b (see FIG. 5). As described above, the outer film 18 has a double structure shape and is attached to the outside of the lining material 17.

Two glass tapes 18a having a width of 25 mm are attached to the outer film 18 from the substantially tip portion to the substantially rear end portion (at a target position with respect to the center of the cross section of the outer film 18 (see FIG. 12 (c))). There is. Specifically, the glass tape 18a is attached to the opposite surface on the inner surface side of the folded outer film 18 in a folded state (see FIG. 12). Further, more specifically, the glass tape 18a is attached on the outer peripheral surface of the outer film 18 from the substantially tip portion to the substantially rear end portion of the outer film 18 in the unfolded state of the outer film 18 (FIG. FIG. 12 (a)). Then, as described above, the outer film 18 faces the rear end direction of the lining material 17 so that the outer peripheral surface of the lining material 17 is covered from the tip end portion of the outer film 18 coupled to the lining device connecting portion 6. , The rear end portion of the outer film 18 is fixed to the lining device tip portion 7 so as to be folded outward at a position where substantially the entire outer peripheral surface of the lining material 17 is covered and directed toward the tip end portion of the lining material 17. Therefore, in the folded state of the outer film 18, the glass tape 18a is attached to the opposite surface of the outer film 18 on the folded inner surface side (see FIG. 12B). In this way, since the glass tape 18a is attached from the substantially tip portion to the substantially rear end portion of the outer film 18, even when the outer film 18 is pulled out together with the tip portion 7 of the lining device in the forward direction, the pulling force is exerted. It can have sufficient strength. As the outer film 18, a polyethylene film, a polypropylene film, a polyethylene terephthalate film, or the like can be used. In the present embodiment, the glass tape 18a is used, but the present invention is not limited to this, and any material can be used as long as it can withstand a tensile force in the direction of the other side (for example, 100 N or more). It may be. Here, FIG. 12 (a) is a developed view of an outer film to which the glass tape of the lining device is attached according to the embodiment of the present invention, and FIG. 12 (b) is an outer view to which the glass tape of the lining device is attached. It is a figure which shows the folding middle of a film, and FIG. 12 (c) is a figure which shows the right side surface of FIG. 12 (b).

The protective sheet 19 is provided to prevent the outer film 18 from coming into contact with the inner surface of the underground pipeline 1 and damaging the outer film 18 when the lining device 4 is inserted into the underground pipeline 1. There is. The protective sheet 19 is formed of polyethylene as a material, and the tip end portion is fixed and bonded to the outer peripheral portion of the lining device tip portion 7 with a binding band 23x, and the outer peripheral surface of the outer film 18 is covered from this tip portion. In this way, the rear end portion of the outer film 18 is attached and bonded with a wide vinyl tape 19a at a position approximately 2 cm from the outer surface end portion of the folded portion of the outer film 18 toward the folded portion. Since the protective sheet 19 is provided on the outer peripheral surface of the outer film 18 in this way, it is possible to prevent the outer film 18 from being damaged and to prevent the lining material 17 from being deteriorated. In the present embodiment, the material of the protective sheet 19 is polyethylene, but the material is not limited to this, and materials such as vinyl, polyurethane, and sunny hoses that do not easily adhere to the inner surface of the underground pipeline 1 can be used. ..

The lining device main body 5 is provided with an air vent thread body 24 (see FIG. 5). The air bleeding thread body 24 has a thread shape and is arranged between the silicon sleeve 15 and the inner film 16, the tip of which is bonded to the tip of the lining device body 5, and the rear end of which is bonded to the rear end of the lining device body 5. Has been done. As a result, even if an air pool is generated between the silicon sleeve 15 and the inner film 16, the air in the air pool can reach the silicon sleeve 15 from the intermediate portion between the silicon sleeve 15 and the inner film 16 along the air vent thread body 24. Since it gathers on both ends of the inner film 16, the silicon sleeve 15 and the inner film 16 can be brought into close contact with each other, and the inner surface of the underground pipeline 1 can be repaired without leaving wrinkles on the lining material 17 that has repaired the inner surface of the underground pipeline 1. Can be done more completely.

The lining device connecting portion 6a (tip portion) is provided at the tip portion of the lining device main body 5. Specifically, the lining device connecting portion 6a (tip portion) is provided integrally with the lining device main body 5 at the tip portion of the lining device main body 5, and the connecting outer peripheral binding band fixing portion 6x is formed on the outer peripheral surface. (See Fig. 5). As described above, the tip of the inner film 16 is fastened to the binding outer peripheral binding band 6x by the binding band 22a, and the tip of the outer film 18 is fastened by the binding band 23a. Specifically, it will be described later.

The lining device tip 7 is detachably provided at the tip of the lining device connecting portion 6. Specifically, the tip portion 7 of the lining device is formed with a tip outer peripheral binding band lashing portion 7x on the outer peripheral surface (see FIG. 5). Then, as described above, the rear end portion of the outer film 18 is fastened to the tip outer peripheral binding band binding portion 7x by the binding band 23b, and the front end portion of the protective sheet 19 is bound by the binding band 23x. Will be done. Further, a tip pin insertion hole 25 is formed in the tip center of the lining device tip 7. The tip pin 26 to which the eyebolt 26a is attached is inserted through the tip pin insertion hole 25. Then, the eyebolt 26a attached to the tip pin 26 is separated from the tip pin insertion hole 25 of the lining device tip 7 when the lining device connecting portion 6a and the lining device tip 7 are separated. Become. Further, a tip eyebolt 27 is attached to the tip side of the tip portion 7 of the lining device in connection with the tip portion 7 of the lining device. A lead-in wire 28 is attached to the eyebolt 26a (tip pin 26), and an outer film reversing rope 29 is attached to the tip eyebolt 27 (see FIG. 13). Further, the tip pin 26 is configured to be connected to the center member 9 (see FIG. 5A). Since the tip pin 26 is provided in connection with the center member 9 in this way, the pulling force of the pulling wire 28 is transmitted to the eyebolt 26a → the tip pin 26 → the center member 9, and the pulling force of the pulling wire 28 is transmitted. Can be transmitted to the entire lining device 4, and the lining device 4 can be towed. Further, as described above, the inside of the silicon sleeve 15 is "LED member 11 wound around the outer circumference of the flexible tube 10"-> (flexible hose spacer 12)-> "flexible hose 13"-> (silicon sleeve spacer). 14) → Since it has a triple structure of “silicon sleeve 15”, when the lining device 4 is pulled by the pull-in wire 28 and passes through a step or a bent portion of the underground pipeline 1, the lining device 4 Although lateral pressure is generated in (silicon sleeve 15), even in this case, the LED member 11 can be protected from the lateral pressure acting on the silicon sleeve 15 by the triple structure provided with the spacers 12 and 14.

The lining device connecting portion 6b (rear end portion) is provided at the rear end portion of the lining device main body 5. Specifically, the lining device connecting portion 6b (rear end portion) is provided at the rear end portion of the lining device main body 5 integrally with the lining device main body 5 and is connected to the outer peripheral surface, similarly to the lining device connecting portion 6a. An outer peripheral binding band lashing portion 6y is formed, and an air injection port 30 is formed at the rear end (see FIG. 5B). The rear end portion of the inner film 16 is fastened to the binding outer peripheral binding band binding portion 6y by the binding band 22b. As will be described later, compressed air is supplied from the outside to the air inlet 30 of the lining device connecting portion 6b via the lining device air hose 36 (see FIG. 13). Then, the compressed air supplied to the air inlet 30 is supplied between the flexible hose 13 and the silicon sleeve 15 to radially expand the silicon sleeve 15. Specifically, it will be described later.

The rear end portion 8 of the lining device has the same shape as the front end portion 7 of the lining device, and the back wire 35a is attached to the rear end eyebolt 35 of the rear end portion (see FIG. 13).

Next, the peripheral equipment of the lining device 4 for repairing the inner surface (inner wall) of the underground pipeline 1 will be described with reference to FIG. Here, FIG. 13 is a schematic configuration diagram in which the lining device according to the embodiment of the present invention is used. In FIG. 13, the underground pipeline 1 into which the lining device 4 is inserted is enlarged and shown for the sake of clarity.

An in-tube camera 32 is attached to the rear portion of the rear end portion 8 of the lining device via a connecting wire 31. The in-pipe camera 32 is connected to the ground camera vehicle 34 via the camera cable 33. Then, while checking the image of the inner surface of the underground pipeline 1 taken by the in-pipe camera 32 from the camera vehicle 34, it is possible to confirm the part to be repaired on the inner surface of the underground pipeline 1. Further, a back wire 35a is attached to the rear end eyebolt 35 at the rear end portion of the rear end portion 8 of the lining device. Then, by marking the back wire 35a, the lining device 4 can be aligned with the position of the underground pipeline 1 to be repaired. Specifically, it will be described later.

The rear portion of the lining device connecting portion 6b is connected to the ground air compressor 37 via the lining device air hose 36. Then, when compressed air is supplied from the air compressor 37, the compressed air is supplied between the flexible hose 13 and the silicon sleeve 15 via the air injection port 30 of the lining device connecting portion 6b. The silicon sleeve 15 is radially inflated.

The rear portion of the lining device main body 5 is connected to the DC power supply 39 on the ground via the lining device power cable 38. Further, the DC power supply 39 is connected to the generator 41 via the power cable 40. Then, the DC power supply 39 can make the LED member 11 emit light by the electric power charged by the generator 41. Further, a tow winch 42 is arranged on the ground, and the lining device 4 can be pulled up to the ground by the tow winch 42.

Next, a method of removing the outer film 18 and the protective sheet 19 of the lining device 4 in the underground pipeline 1 will be described with reference to FIG. Here, FIG. 14A is a diagram showing a state in which the lining device according to the embodiment of the present invention is inserted into the underground pipeline, and FIG. 14B is a diagram in which the outer film of the lining device is a lining material. 14 (c) is a diagram showing a state of being separated from the outer peripheral surface of the lining device, in which the outer film of the lining device is held in the underground pipeline together with the protective sheet while being connected to the lining device tip and the lining device connecting portion. It is a figure which shows the state which is being done.

The removal of the outer film 18 and the protective sheet 19 is performed after the lining device 4 is inserted into the underground pipeline 1 and before the silicon sleeve 15 is radially expanded. Here, as described above, the silicon sleeve 15 is expanded radially by supplying compressed air from the outside between the flexible hose 13 and the silicon sleeve 15.

As shown in FIG. 14, the lining device 4 is inserted inside the underground pipeline 1. As described above, the lead-in wire 28 is attached to the eyebolt 26a (tip pin 26) at the tip of the lining device tip 7. Further, as described above, the outer film reversing rope 29 is attached to the tip eyebolt 27 (see FIGS. 5 and 14). Then, the lead-in wire 28 and the outer film reversing rope 29 are pulled in the forward direction from the inside of the manhole 3a in the forward direction of the lining device 4, so that the lining device 4 can be inserted into the underground pipeline 1 (FIG. 14 (a)). Further, after the lining device 4 arrives at the repair position of the underground pipeline 1, the outer film reversing rope 29 attached to the tip eyebolt 27 of the lining device tip 7 from inside the manhole 3a in the front direction of the lining device 4. Is pulled so that the lining device tip portion 7 is separated from the lining device connecting portion 6 and the lining device tip portion 7 is separated from the lining device connecting portion 6 (see FIG. 14 (b)). Then, the tip portion 7 of the lining device separated from the lining device connecting portion 6 is further pulled in the forward direction by the outer film reversing rope 29, so that the rear end portion of the outer film 18 moves in the forward direction together with the front end portion 7 of the lining device. At the same time, the protective sheet 19 on the outer side of the outer film 18 is also moved in the forward direction. As a result, the outer film 18 is separated from the outer peripheral surface of the lining material 17. Then, the tip portion 7 of the lining device is further pulled in the forward direction by the outer film reversing rope 29, so that the outer film 18 is completely separated from the outer peripheral surface of the lining material 17, and the outer film 18 is connected to the tip portion 7 of the lining device. It is held in the underground pipeline 1 together with the protective sheet 19 while being coupled to the portion 6 (see FIG. 14 (c)).

Next, a partial lining method using a lining device used for partial repair of the inner surface of the underground pipeline will be described. Here, FIG. 15 is a flowchart of a partial lining method using a lining device according to an embodiment of the present invention.

First, in S1, the lining device positioning step is carried out. In the lining device positioning step, the distance to the repair position of the underground pipeline 1 is measured, and the lining device 5 is set so that it can be inserted into the repair position in the underground pipeline 1. Specifically, when the in-pipe camera 32 is inserted into the underground conduit 1 from the underground conduit opening 1a (see FIG. 13) and the in-pipe camera 32 arrives at the position to be repaired in the underground conduit 1. Mark the position of the underground conduit opening 1a of the back wire 35a attached to the in-pipe camera 32. Thereby, the length from the underground pipeline opening 1a to the position to be repaired (the position of the in-pipe camera 32) in the underground pipeline 1 can be marked (marked) on the back wire 35a. When repairing the underground pipeline 1, the lining device 4 is attached in front of the in-pipe camera 32, so that the back wire 35a is equal to the length (1.6 m) of the in-pipe camera 32 and the lining device 4. Move the mark position forward. As a result, by inserting the lining device 4 into the underground pipeline 1 up to the position of the mark (mark) of the back wire 35a, the lining device 4 can be made to arrive at the position to be repaired in the underground pipeline 1. can. Then, proceed to S2.

In S2, the insertion step in the manhole is carried out. In this manhole insertion step, the lining device 4 is inserted into the manhole 3 from the ground. Specifically, using a tow winch 42 installed on the ground, the lining device 4 is inserted into the manhole 3 while being suspended from the ground by a back wire 35a, and a workbench installed in the manhole 3 (not shown). Then, preparations are made for inserting the lining device 4 such as the attachment of the pull-in wire 28 and the outer film reversing rope 29 into the underground pipeline 1. Then, proceed to S3.

In S3, the lining device slack removing step is carried out. In this lining device slack removing step, the lead-in wire 28 attached to the lining device tip portion 7, the outer film reversing rope 29, and the back wire 35a attached to the rear end portion of the lining device rear end portion 8 are pulled, and the respective wires are pulled. And the slack of the rope is removed. Then, proceed to S4.

In S4, the lining device in-pipe insertion step is carried out. In this lining device in-pipe insertion step, the lining device 4 inserted in the manhole 3 is inserted into the underground pipeline 1. Specifically, the lead-in wire 28 and the outer film reversing rope 29 attached to the tip of the lining device tip 7 are uniformly pulled toward the tip of the underground pipeline 1, and the lining device 4 is pulled by the underground pipeline 1. It is inserted inside (see FIG. 14 (a)). Here, since the lining device main body 5 of the lining device 4 has flexibility in the transverse longitudinal direction, even if the underground pipeline 1 has a step or a bent portion, the lining device main body 5 has a step or a bent portion along the step or the bent portion. , The lining device main body 5 can be moved. When the lining device 4 is inserted into the underground pipeline 1, the aluminum tubular film (not shown) surrounding the lining device 4 is inserted into the underground pipeline 1 immediately before the lining device 4 is inserted. While being peeled off from the tip, it is inserted into the underground pipeline 1 from the front end of the lining device 4. This aluminum tubular film (not shown) is for preventing photocuring of the lining material 17 and preventing damage to the lining device 4, and has a width of 350 mm and a length of 250 cm and is in the shape of a bag made of aluminum. It is formed in shape. Here, the aluminum tubular film (not shown) is inserted from the lining device 4 after the lining device 4 is manufactured, and is peeled off from the tip of the lining device 4 immediately before the lining device 4 is inserted into the underground pipeline 1. .. Then, the process proceeds to S5.

In S5, the outer film removing step is carried out. In this outer film removing step, the lining device 4 arrives at the repair position of the underground pipeline 1, and at that position, the lining device 4 is attached to the tip portion 7 of the lining device from inside the manhole 3a (see FIG. 1) on the front side of the lining device 4. By pulling the outer film reversing rope 29, the lining device tip 7 is separated from the lining device connecting portion 6, and the outer film 18 and the protective sheet 19 coupled to the lining device tip 7 are lining in the forward direction. By moving together with the tip portion 7, the outer film 18 is separated from the outer peripheral surface of the lining material 17, and the outer film 18 and the protective sheet 19 bonded to the lining device tip portion 7 and the lining device connecting portion 6 are connected to the underground tube. It is held in the road 1 (see FIGS. 14 (b) and 14 (c)). Specifically, a confirmation tape 43 having a length of 50 cm is attached to the outside of the folding point (rear side of the center member 9) of the outer film 18 (see FIG. 14A). Then, after the lining device 4 arrives at the repair position of the underground pipeline 1, the outer film reversing rope 29 is pulled at that position, and the tape 43 for confirming the folding point of the outer film 18 starts to move, and then the outer film reversing. The rope 29 is pulled to a length of 4.0 m. As a result, the outer film 18 is separated from the outer peripheral surface of the lining material 17, and the outer film 18 and the protective sheet 19 bonded to the lining device tip portion 7 and the lining device connecting portion 6 are in the underground pipeline 1. It is kept inside. Then, the process proceeds to S6.

In S6, the silicon sleeve diameter expansion step is carried out. In this silicon sleeve diameter expansion step, compressed air is supplied between the flexible hose 13 and the silicon sleeve 15, and the silicon sleeve 15 is radially expanded by the compressed air, so that the lining material on the outer peripheral side of the silicon sleep 15 is formed. 17 is brought into close contact with the inner surface of the underground pipeline 1 to be repaired (see FIG. 16A). Specifically, compressed air is supplied from the ground air compressor 37 between the flexible hose 13 and the silicon sleeve 15 at a pressure of 0.21 MPa for 5 minutes via the air inlet 30 at the rear of the lining device connecting portion 6b. The compressed air causes the silicon sleeve 15 to expand radially (see FIGS. 5, 13, 16 (a)). As a result, the lining material 17 can be brought into close contact with the inner surface of the underground pipeline 1 to be repaired. Further, the lining material 17 is composed of an inner lining material 17a on the inner film side having a hollow substantially cylindrical shape having elasticity and an outer lining material 17b on the outer film side having a flat surface shape, and the outer lining material 17b thereof. Is configured to be wound around the outer peripheral surface of the inner lining material 17a, so that when the silicon sleeve 15 is expanded radially, the inner lining material 17a extends in a shape following the silicon sleeve 15 and the outer lining material 17b. Follows this and moves so as to shift the outer peripheral surfaces of the inner lining material 17a and the outer lining material 17b after the first lap in the circumferential direction (see FIGS. 16 (c) and 16 (d)). As a result, even when lining is performed at a bent portion or a bent portion of the underground pipeline 1, the outer lining material 17b can be stretched without causing wrinkles, so that the finished surface of the lining material 17 is prevented from wrinkling. be able to. Further, since the outer lining material 17b in which the glass fiber is woven more densely than the inner lining material 17a is wound around the outer peripheral surface of the inner lining material 17a having the elasticity of the lining material 17, the silicon sleeve 15 is formed. Even if it expands, the outer lining material 17b on the outer side of the silicon sleeve 15 does not enter the defective portion on the inner surface of the underground pipeline 1, and it is possible to prevent the defective portion on the inner surface of the underground pipeline 1 from expanding significantly. can. In the present embodiment, compressed air is supplied between the flexible hose 13 and the silicon sleeve 15 at a pressure of 0.21 MPa for 5 minutes, but the present invention is not limited to this, and the pressure and supply time of the compressed air are appropriately changed. Can be used. Here, FIG. 16 (a) is a diagram showing a situation in which the silicon sleep of the lining device according to the embodiment of the present invention is radially expanded, and FIG. 16 (b) is a diagram showing a situation in which the lining material of the lining device is photocured. 16 (c) is a diagram showing an inner lining material and an outer lining material before the diameter expansion of the lining device, and FIG. 16 (d) is a diagram showing the situation after the diameter of the lining device is expanded. It is a figure which shows the inner lining material and the outer lining material of. Then, proceed to S7.

In S7, the lining material photo-curing step is carried out. In this lining material photo-curing step, the LED member 11 emits light, so that the lining material 17 in close contact with the inner surface of the underground pipeline 1 to be repaired by the silicon sleeve diameter expansion step is photo-cured (FIG. 16 (FIG. 16). b) See). Specifically, when a current of 10 A is supplied from the ground DC power supply 39 via the lining device power cable 38 for 20 minutes, the LED member 11 emits light, and the inner surface of the underground pipeline 1 to be repaired by the light is emitted. The lining material 17 in close contact with the light-cured material 17 is photo-cured (see FIG. 13). Further, the LED member 11 has a front-rear direction LED member 11a spirally arranged on the outer peripheral surface of the flexible tube 10 from the tip end side of the center member 9 toward the rear end portion, and a spiral shape of the front-rear direction LED member 11a. It is composed of a rear-forward LED member 11b spirally arranged on the outer peripheral surface of the flexible tube 10 from the rear end side of the center member 9 toward the tip portion while being adjacent to each spiral line of the above. The LED member 11a is irradiated with light by the current supplied from the front side of the front-rear LED member 11a, and the rear-front LED member 11b is irradiated with light by the current supplied from the rear side of the rear-front LED member 11b. Since the light emission amounts of the front-rear direction LED member 11a and the rear-front direction LED member 11b can be complemented, the light emission amount can be made substantially uniform for the entire LED member 11. Further, the front-rear direction LED member 11a is configured by a plurality of front-rear direction parallel LED members 11x to which current is supplied from the front side in parallel, and the rear-front direction LED member 11b is respectively supplied with current from the rear side. Since a plurality of rear-front parallel LED members 11y are configured in parallel, and the front-rear parallel LED members 11x and the rear-front parallel LED members 11y are arranged alternately, the respective front-rear parallel LED members 11x And the length of one of the rear-front parallel LED members 11y can be shortened. As a result, the voltage drop can be reduced in units of the front-rear parallel LED member 11x and the rear-front parallel LED member 11y to reduce the decrease in the amount of light emitted, so that the amount of light emitted from the entire LED member 11 can be further increased. The lining material 17 can be photo-cured more reliably in a short time. In the present embodiment, the LED member 11 is made to emit light for 20 minutes, but the present invention is not limited to this, and since the lining material 17 is cured in about 6 minutes, it may be about 6 minutes to about 20 minutes. Then, the process proceeds to S8.

In S8, the repair finish confirmation step is carried out. In this repair finish confirmation step, the in-pipe camera 32 is moved forward, and the finished state of the repaired portion of the underground pipeline 1 is confirmed (see FIG. 17). Specifically, after the air between the flexible hose 13 and the silicon sleeve 15 is evacuated, the lead-in wire 28 attached to the eyebolt 26a (tip pin 26) is pulled toward the tip of the underground pipeline 1. As a result, the in-pipe camera 32 attached to the connecting wire 31 behind the lining device 4 is moved forward, and the finished state of the repaired portion of the underground pipeline 1 is photographed by the in-pipe camera 32 (see FIG. 13). ). Then, the finished state of the repaired portion of the underground pipeline 1 photographed by the in-pipe camera 32 is transmitted from the in-pipe camera 32 to the ground camera vehicle 34 and confirmed by the ground camera vehicle 34. Here, when the outer lining material 17b of the lining material 17 is wound around the outer peripheral surface of the inner lining material 17a, the mesh of the glass fiber is densely knitted from the inner lining material 17a, and the silicon sleeve 15 is expanded radially. Since the outer lining material 17b is moved so as to shift in the circumferential direction from the outer peripheral surfaces of the inner lining material 17a and the outer lining material 17b after the first lap and the diameter is expanded, voids are created in the mesh of the glass fiber of the outer lining material 17b. It becomes difficult to occur, and the outer lining material 17b can have watertightness even after photo-curing, and since the outer lining material 17b winds the outer peripheral surface of the inner lining material 17a twice, the inner side after photo-curing. Even if a small void is formed in the lining material 17a, the outer lining material 17b can prevent water from leaking from the lining material 17, and the inner surface of the underground pipeline 1 can be repaired more completely. Here, FIG. 17 is a diagram showing a situation in which the finished state of the underground pipeline repaired by the lining device according to the embodiment of the present invention is confirmed. Then, the process proceeds to S9.

In S9, the lining device out-of-tube drawing step is carried out. In this lining device out-of-pipe pulling step, the lining device 4 is pulled out of the underground pipeline 1. Specifically, the back wire 35a attached to the eyebolt 35 at the rear end of the rear end 8 of the lining device is pulled toward the rear of the underground pipeline 1, and the lining device 4 is pulled out of the underground pipeline 1. Is done. Then, the process proceeds to S10.

In S10, the lining device pulling step is carried out. In this lining device pulling process, the lining device 4 is pulled out of the manhole 3 while being pulled up from the ground by the back wire 35a using the tow winch 42 installed on the ground, and the lining device 4 is pulled up (see FIG. 13). .. Then, the process proceeds to S11.

In S11, it is determined whether or not there is another repaired part in the underground pipeline 1. If there are other repair points in the underground pipeline 1, proceed to S2, and until it is determined that there are no other repair points in the underground pipeline 1, S11 → S2 → S3 → ... → The process of S9 → S10 → S11 is repeatedly carried out. Here, since the maximum construction length of the partial repair of the underground pipeline 1 is about 150 cm, if the construction length of the partial repair is 150 cm or more, it is determined that there is another repair location in the underground pipeline 1. To. If it is determined that there are no other repair points in the underground pipeline 1, the partial lining method is completed.

As described above, the lining device 4 inserted into the underground pipeline 1 by the lining device in-pipe insertion step (S4) arrives at the repair position of the underground pipeline 1, and at that position, the front side of the lining device 4 By pulling the outer film reversing rope 29 attached to the lining device tip 7 from inside the manhole 3a of the lining device, the lining device tip 7 is separated from the lining device connecting portion 6a and coupled to the lining device tip 7. Since the outer film 18 and the protective sheet 19 move in the forward direction together with the tip portion 7 of the lining device, the outer film 18 is separated from the outer peripheral surface of the lining material 17, so that the outer film 18 is separated from the inner surface of the underground pipeline 1 and the lining material. The lining material 17 can be more strongly adhered to the repair inner surface of the underground pipeline 1 without hindering the adhesion with the 17. As a result, even after the partial repair of the inner surface of the underground pipeline 1 is completed, the lining material 17 becomes difficult to separate from the repair inner surface of the underground pipeline 1, and the inner surface of the underground pipeline 1 is repaired more completely. be able to.

It should be noted that the embodiments disclosed this time are exemplary in all respects and are not restrictive. Furthermore, the scope of the present invention is shown by the description of the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Underground pipeline 1a Underground pipeline port 2 Power cable 3 Manhole 3a Manhole 4 Lining device 5 Lining device main body 6 Lining device connecting part 6a Lining device connecting part (tip)
6x Connection outer peripheral binding band tying part 6b Lining device connection part (rear end part)
6y Connected outer peripheral binding band tying part 7 Lining device tip 7x Tip outer tying band tying part 8 Lining device rear end 9 Center member 10 Flexible tube 11 LED member 11a Front-rear direction LED member 11x Front-back direction parallel LED member 11b Rear front Direction LED member 11y Rear front direction Parallel LED member 12 Flexible hose spacer 13 Flexible hose 13a Convex part 14 Silicon sleeve spacer 15 Silicon sleeve 16 Inner film 17 Lining material 17a Inner lining material 17b Outer lining material 18 Outer film 18a Glass Tape 19 Protective sheet 20 Current line 20a Branch current line 21 Current line 21a Branch current line 22a Binding band 22b Binding band 23a Binding band 23b Binding band 23x Binding band 24 Air vent thread body 25 Tip pin insertion hole 26 Tip pin 26a Eyebolt 27 Tip eyebolt 28 Pull-in wire 29 Outer film reversing rope 30 Air inlet 31 Connecting wire 32 In-pipe camera 33 Camera cable 34 Camera car 35 Rear end eyebolt 35a Back wire 36 Lining device Air hose 37 Air compressor 38 Lining device Power cable 39 DC power supply 40 Power supply Cable 41 Generator 42 Tow winch 43 Confirmation tape 221 Current line

Claims (10)

A lining device that is inserted inside an underground pipeline and used for partial repair of the inner surface of the underground pipeline.
The main body of the lining device, which has a longer horizontal length with respect to the vertical cross section,
With the lining device connecting portion provided at the tip of the lining device main body,
It has a lining device tip portion detachably provided at the tip end portion of the lining device connecting portion, and has.
The lining device main body is
A center member formed in a substantially rod shape and provided along the transverse longitudinal direction,
A flexible tube having a hollow substantially cylindrical shape and covering the outer peripheral surface of the center member,
A light emitting member provided on the outer peripheral surface of the flexible tube and irradiating light outward.
A flexible hose having a hollow substantially cylindrical shape, having light transmission, and covering the outer peripheral surface of the flexible tube in which the light emitting member is arranged on the outer peripheral surface.
A silicon sleeve having a hollow substantially cylindrical shape made of light-transmitting silicon and covering the outer peripheral surface of the flexible hose, and a silicon sleeve.
An inner film that has light transmission and covers the outer peripheral surface of the silicon sleeve, and
A lining material made of a photocurable material, which is provided on the outer peripheral surface of the inner film in a hollow substantially cylindrical shape and which adheres to the inner surface of the underground pipeline by radially expanding the silicon sleeve.
The tip portion is coupled to the lining device connecting portion, and the outer peripheral surface of the lining material is covered from the tip portion toward the rear end direction of the lining material, and substantially the entire outer peripheral surface of the lining material is covered. It has an outer film that is folded outward at the lining position and directed toward the tip of the lining material, and the rear end thereof is bonded to the tip of the lining device.
The outer film is inserted into the underground pipeline, and the tip of the lining device is pulled from the manhole on the front side of the underground pipeline before the silicon sleeve is radially inflated, whereby the lining device is inserted. By separating the tip portion from the lining device connecting portion and moving it in the forward direction together with the lining device tip portion, everything is separated from the outer peripheral surface of the lining material, and the lining device tip portion and the lining device connecting portion are separated from each other. A lining device characterized in that it is held in an underground pipeline while being coupled. Further, it has a glass tape attached from the substantially tip portion to the substantially rear end portion of the outer film.
The lining device according to claim 1, wherein the glass tape is attached to a facing surface on the inner surface side in a folded state of the outer film. The light emitting member is composed of an LED member.
The LED member is
A front-rear direction LED member spirally arranged on the outer peripheral surface of the flexible tube from the tip end side of the center member toward the rear end portion.
The rear-forward LED member is spirally arranged on the outer peripheral surface of the flexible tube from the rear end side of the center member toward the tip while adjacent to each spiral line of the front-rear LED member. And have,
The front-rear direction LED member is irradiated with light by a current supplied from the front side.
The lining device according to claim 1, wherein the rear-front LED member is irradiated with light by a current supplied from the rear side. The front-rear direction LED member is composed of a plurality of front-rear direction parallel LED members to which current is supplied from the front side in parallel.
The rear-front LED member is composed of a plurality of rear-front parallel LED members to which current is supplied from the rear side in parallel.
The lining device according to claim 3, wherein the front-rear direction parallel LED member and the rear-front direction parallel LED member are arranged alternately. The fourth aspect of claim 4, wherein the front-rear direction parallel LED member and the rear-front direction parallel LED member are each supplied with substantially the same amount of current by a branched current line branched from a single current line. Lining device. The lining device according to claim 1, wherein the lining device main body has flexibility in the transverse longitudinal direction. Further, there is an air bleeding yarn body which is arranged between the silicon sleeve and the inner film in a thread shape, the tip of which is bonded to the tip of the lining device body, and the rear end of which is bonded to the rear end of the lining device body. death,
The lining device according to claim 1, wherein the air pool generated between the silicon sleeve and the inner film can be collected on both ends of the silicon sleeve and the inner film along the air vent thread body. The lining material is formed of a double structure formed by laminating an inner lining material on the inner film side and an outer lining material on the outer film side.
The inner lining material has a structure in which glass fibers are woven in a mesh shape and have an elastic hollow substantially cylindrical shape.
The outer lining material has a planar shape in which glass fibers are woven more densely than the inner lining material, and is wound around the outer peripheral surface of the inner lining material by two or more turns.
Since the outer lining material is expanded by radially expanding the silicon sleeve, the outer lining material and the outer peripheral surface of the outer lining material after the first round move so as to be displaced in the circumferential direction. The lining device according to claim 1, wherein voids are less likely to be generated in the mesh of the glass fiber, and the lining apparatus has a watertightness in which water does not substantially permeate through the mesh of the glass fiber even after photocuring. The tip portion is coupled to the tip portion of the lining device, and the outer peripheral surface of the outer film is covered from the tip portion toward the folded portion of the outer film, and the rear end portion is outside the folded portion of the outer film. It also has a protective sheet bonded to the side,
The lining device according to claim 1, wherein the protective sheet protects the outer film from being damaged when it is inserted into the underground pipeline. The manhole insertion process in which the lining device is inserted into the manhole from the ground,
The lining device in-pipe insertion step in which the lining device inserted into the manhole by the manhole insertion step is inserted into the underground pipeline,
The lining device inserted into the underground pipeline by the lining device in-pipe insertion step arrives at the repair position of the underground pipeline, and at that position, the tip of the lining device is inserted from the manhole on the front side of the lining device. By being pulled, the tip of the lining device is separated from the connecting portion of the lining device, and the outer film and the protective sheet bonded to the tip of the lining device move forward together with the tip of the lining device. The outer film is separated from the outer peripheral surface of the lining material, and the outer film bonded to the tip of the lining device and the connecting portion of the lining device, and the outer film in which the protective sheet is held in the underground pipeline. The film removal process and
Compressed air is supplied between the flexible hose and the silicon sleeve, and the silicon sleeve is radially expanded by the compressed air, so that the lining material on the outer peripheral side of the silicon sleeve is in the ground to be repaired. Silicon sleeve diameter expansion process that is in close contact with the inner surface of the pipeline,
A lining material photo-curing step in which the lining material adhered to the inner surface of the underground pipeline to be repaired by the silicon sleeve diameter-expanding step is photo-cured by emitting light from the light-emitting member.
After the lining material photocuring step is executed, the compressed air between the flexible hose and the silicon sleeve is exhausted, and the lining device is pulled out of the underground pipeline.
The partial lining method using the lining device according to claim 9, further comprising a lining device pulling step in which the lining device pulled out of the underground pipeline by the lining device pulling out step is pulled up to the ground through a manhole. ..

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