JP5875553B2 - Lining method, lining structure, lining material - Google Patents

Lining method, lining structure, lining material Download PDF

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JP5875553B2
JP5875553B2 JP2013139316A JP2013139316A JP5875553B2 JP 5875553 B2 JP5875553 B2 JP 5875553B2 JP 2013139316 A JP2013139316 A JP 2013139316A JP 2013139316 A JP2013139316 A JP 2013139316A JP 5875553 B2 JP5875553 B2 JP 5875553B2
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diameter
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lining
changing
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JP2015009557A (en
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佐藤 淳
佐藤  淳
聖四郎 奈良
聖四郎 奈良
山ノ内 智之
智之 山ノ内
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株式会社大阪防水建設社
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Description

本発明は、内径が拡大または縮小するように変化する径変化部を有した空洞構造体の内周面をライニングするためのライニング工法、ライニング構造物、およびライニング材に関する。   The present invention relates to a lining method, a lining structure, and a lining material for lining an inner peripheral surface of a hollow structure having a diameter changing portion that changes so that an inner diameter is enlarged or reduced.

従来、既設管やトンネルなどの空洞構造体の内側で、合成樹脂製のライニング材を用いて、長筒状のライニング構造物を組み立てて、空洞構造体の内周面を覆うようにライニングする工法がある。   Conventionally, a method of assembling a long cylindrical lining structure using a synthetic resin lining material inside a hollow structure such as an existing pipe or tunnel, and covering the inner peripheral surface of the hollow structure There is.

たとえば、特許文献1では、帯状のライニング材を湾曲させて、長手方向の両端部を結合することにより、筒状体を形成している。そして、複数の筒状体を空洞構造体の内側に軸方向へ並べて、筒状体間を合成樹脂製の接合材で接合することで、ライニング構造物を組み立てている。   For example, in Patent Document 1, a tubular body is formed by curving a strip-shaped lining material and joining both ends in the longitudinal direction. Then, the lining structure is assembled by arranging a plurality of cylindrical bodies in the axial direction inside the hollow structure and joining the cylindrical bodies with a synthetic resin joining material.

また、特許文献2では、円弧状のセグメント材を円弧方向に複数結合することで、筒状体を形成している。そして、複数の筒状体を空洞構造体の内側に軸方向へ並べて、筒状体同士をねじ部材とナットで接合したり、一方の筒状体の端部に設けられた凹部に他方の筒状体に設けられた凸部を嵌合したりすることで、ライニング構造物を組み立てている。   Further, in Patent Document 2, a cylindrical body is formed by joining a plurality of arc-shaped segment materials in the arc direction. Then, a plurality of cylindrical bodies are arranged inside the hollow structure in the axial direction, and the cylindrical bodies are joined to each other with a screw member and a nut, or the other cylinder is placed in a recess provided at an end of one cylindrical body. The lining structure is assembled by fitting convex portions provided on the shape body.

また、特許文献3では、空洞構造体の内側で帯状のライニング材を螺旋状に巻回して、隣り合うライニング材の側縁部に設けられた嵌合部同士を嵌合したり、嵌合部に接合材を接合したりすることで、ライニング構造物を組み立てている。   Further, in Patent Document 3, a belt-shaped lining material is spirally wound inside the hollow structure to fit the fitting portions provided on the side edges of adjacent lining materials, The lining structure is assembled by bonding a bonding material to the surface.

空洞構造体には、段差や屈曲や曲がりが生じているものがある。   Some hollow structures have steps, bends, or bends.

それに対して、特許文献1では、接合材の本体部の撓み領域が伸びて、筒状体間の間隔が幅方向や厚み方向に広がることで、空洞構造体の段差や屈曲などに追随している。   On the other hand, in Patent Document 1, the bending region of the main body portion of the bonding material is extended, and the interval between the cylindrical bodies is expanded in the width direction and the thickness direction, thereby following the step or bending of the hollow structure. Yes.

また、特許文献2では、可変幅セグメントの嵌合深さを変えて、ライニング構造物を曲げることで、空洞構造体の曲がりに追随している。   In Patent Document 2, the bending depth of the variable width segment is changed to bend the lining structure to follow the bending of the hollow structure.

また、特許文献3では、ライニング材により形成する螺旋管の径の大きさや軸の向きを変化させることで、空洞構造体の段差や曲がりに追随している。   Moreover, in patent document 3, it is following the level | step difference and bending of a hollow structure by changing the magnitude | size of the diameter of the spiral tube formed with a lining material, and the direction of an axis | shaft.

また、特許文献4では、帯状のライニング材の幅方向の一端に緩やかな円弧状の裁断部を設け、他端に凹状または凸状の嵌合部を設けている。このライニング材を湾曲させて、筒状体を形成した後、該筒状体を空洞構造体の曲がり部の内側に軸方向へ複数並べている。そして、対向する嵌合部同士を嵌合し、対向する裁断部同士を付き合わせて、長尺当て材を融着することで、曲がったライニング構造物を組み立てている。   In Patent Document 4, a gentle arc-shaped cutting part is provided at one end in the width direction of the belt-like lining material, and a concave or convex fitting part is provided at the other end. After the lining material is curved to form a cylindrical body, a plurality of the cylindrical bodies are arranged in the axial direction inside the bent portion of the hollow structure. And the fitting parts which oppose each other, the cutting parts which oppose each other are put together, and the bent lining structure is assembled by fuse | melting a long abutting material.

また、特許文献5では、一対の円筒体の接合端部を斜めに裁断し、該裁断面同士を接合することで、中心軸線が屈曲する曲筒部材を組み立てている。そして、空洞構造体の曲がり部の内側に複数の曲筒部材を軸方向に並べて、隣り合う曲筒部材の嵌合部同士を嵌合することで、曲がったライニング構造物を組み立てている。   Moreover, in patent document 5, the curved cylindrical member in which a center axis line bends is assembled by cutting the joining edge part of a pair of cylindrical body diagonally, and joining this cut surface. And the curved lining structure is assembled by arranging a plurality of curved cylinder members in the axial direction inside the bent part of the hollow structure, and fitting the fitting parts of the adjacent curved cylinder members together.

さらに、特許文献6では、パイプを輪切りにした、両端または片端が軸方向と垂直な面に対して傾斜する筒状体を、空洞構造体の曲がり部の内側に複数軸方向に並べている。そして、隣り合う筒状体同士をH型ジョイナやπ型ジョイナを介して接合することで、曲がったライニング構造物を組み立てている。   Furthermore, in patent document 6, the cylindrical body which rounded the pipe and in which both ends or one end inclines with respect to a surface perpendicular | vertical to an axial direction is arranged in the multiple axial direction inside the bending part of a cavity structure. And the curved lining structure is assembled by joining adjacent cylindrical bodies through an H-type joiner or a π-type joiner.

特許第4743725号公報Japanese Patent No. 4743725 特開2010−43731号公報JP 2010-43731 A 特開2009−149049号公報JP 2009-149049 A 特開2002−81296号公報JP 2002-81296 A 特開2000−274191号公報JP 2000-274191 A 特開2000−301613号公報JP 2000-301613 A

ところで、空洞構造体には、内径が拡大または縮小するように変化する径変化部を有したものがある。空洞構造体の段差も径変化部の一形態である。径変化部の大径側と小径側の内径差が大きい場合、特許文献1のような撓み領域を有する接合材や、特許文献2のような可変幅セグメントや、特許文献3のような螺旋管では、該内径差に対応することができず、径変化部でライニング構造物が組み立てられなくなり、連続でライニングすることができなくなる。   By the way, some hollow structures have a diameter changing portion that changes so that the inner diameter is enlarged or reduced. The step of the hollow structure is also a form of the diameter changing portion. When the inner diameter difference between the large diameter side and the small diameter side of the diameter changing portion is large, a bonding material having a bending region as in Patent Document 1, a variable width segment as in Patent Document 2, and a spiral tube as in Patent Document 3 In this case, the difference in the inner diameter cannot be accommodated, and the lining structure cannot be assembled at the diameter changing portion, so that the lining cannot be continuously performed.

また、特許文献4〜6のような曲がり部用の筒状体を用いても、空洞構造体の径変化部に対応させて、ライニング構造物を組み立てることはできず、連続でライニングすることもできない。   Moreover, even if it uses the cylindrical body for bending parts like patent documents 4-6, a lining structure cannot be assembled corresponding to the diameter change part of a hollow structure, and it can line up continuously. Can not.

本発明の課題は、径変化部を有した空洞構造体の内周面を連続でライニングすることである。   An object of the present invention is to continuously line the inner peripheral surface of a hollow structure having a diameter changing portion.

本発明によるライニング工法は、内径が拡大または縮小するように変化する径変化部を有した空洞構造体の内周面をライニングするライニング工法であって、幅方向の一側縁と他側縁の曲率半径を異ならせることで円弧状にカーブした一定幅で帯状の径変化部用ライニング材を、所定の長さに加工した後、厚み方向に湾曲させて長手方向の両端部を結合することにより得られる、径変化部用筒状錐体を、各筒状錐体の大径部同士の径および小径部同士の径を徐々に拡大または縮小するように異ならせて、複数形成する工程と、空洞構造体の径変化部の内側に複数の径変化部用筒状錐体を、小径部の径が小さい順または大径部の径が大きい順に軸方向に並べる工程と、径変化部の内側で隣り合う径変化部用筒状錐体間を接合する工程とを含んでいる。   A lining method according to the present invention is a lining method for lining an inner peripheral surface of a hollow structure having a diameter changing portion that changes so that an inner diameter is enlarged or reduced. By processing the lining material for a band-shaped diameter changing portion with a constant width curved in an arc shape by varying the radius of curvature into a predetermined length, and then bending both ends in the longitudinal direction by bending in the thickness direction A step of forming a plurality of obtained cylindrical cones for diameter changing portions by varying the diameters of the large diameter portions and the diameters of the small diameter portions of each cylindrical cone so as to gradually expand or contract, Arranging a plurality of cylindrical cones for the diameter changing portion inside the diameter changing portion of the hollow structure in the axial direction in order of decreasing the diameter of the small diameter portion or increasing the diameter of the large diameter portion, and inside the diameter changing portion And joining the cylindrical cones for adjacent diameter change portions That.

また、本発明によるライニング構造物は、内径が拡大または縮小するように変化する径変化部を有した空洞構造体の内周面をライニングするために、該空洞構造体の内側で組み立てられるライニング構造物であって、幅方向の一側縁と他側縁の曲率半径が異なっていて、円弧状にカーブした一定幅で帯状の径変化部用ライニング材を備えている。所定の長さに形成された径変化部用ライニング材は、厚み方向に湾曲て長手方向の両端部結合されていて当該ライニング材により径変化部用筒状錐体が構成されている。径変化部用筒状錐体は、複数設けられていて、各筒状錐体の大径部同士の径および小径部同士の径は、徐々に拡大または縮小するように異なっている。空洞構造体の径変化部の内側に複数の径変化部用筒状錐体が、小径部の径が小さい順または大径部の径が大きい順に軸方向に並べられた状態で、隣り合う径変化部用筒状錐体間が接合されている。 Further, the lining structure according to the present invention is a lining structure assembled inside the cavity structure in order to line the inner peripheral surface of the cavity structure having a diameter changing portion that changes so that the inner diameter is enlarged or reduced. a ones, have different radii of curvature of the one side edge and the other side edge in the width direction, curved in an arc shape, and a strip of diameter change portion for the lining material at a constant width. Predetermined length formed diameter change portion for the lining material, be bonded both end portions in the longitudinal direction and curved in a thickness direction, diameter change section tubular cone by the lining material is constituted . Cylindrical cone for diameter change portion is not provided in a plurality, the diameter of the diameter and small-diameter portions of the large diameter portion of the respective tubular cones are different so as to gradually enlarged or reduced. In a state where a plurality of diameter change portion on the inner side of the diameter change of the cavity structure tubular cones, ordered by size of ascending order or the large-diameter portion is diameter of the small diameter portion is larger in the axial direction, adjacent diameter The cylindrical cones for change part are joined.

また、本発明によるライニング材は、空洞構造体の内径が拡大または縮小するように変化する径変化部の内側に、小径部の径が小さい順または大径部の径が大きい順に軸方向に並べられた状態で、径変化部の内周面をライニングする筒状錐体を構成するライニング材であって、当該ライニング材は、一定幅の帯状に形成されているとともに、幅方向の一側縁と他側縁の曲率半径が異なっていて円弧状にカーブした形状を有しており、厚み方向に湾曲して長手方向の両端部が結合された状態で、小径部と大径部を有する前記筒状錐体を構成しているFurther, the lining material according to the present invention is arranged in the axial direction inside the diameter changing portion that changes so that the inner diameter of the hollow structure increases or decreases, in the order of decreasing the diameter of the small diameter portion or increasing the diameter of the large diameter portion. In this state, the lining material forms a cylindrical cone that lines the inner peripheral surface of the diameter changing portion, and the lining material is formed in a belt shape having a constant width, and one side edge in the width direction. and has a shape curved have different radii of curvature on arcuate other side edge, in a state in which both ends in the longitudinal direction is curved in the thickness direction is attached, have a small diameter portion and the large diameter portion constitute the cylindrical cone.

上記によると、径変化部用ライニング材から空洞構造体の径変化部に対応した、径の異なる複数の径変化部用筒状錐体を形成した後、該筒状錐体を径の小さい順または大きい順に径変化部の内側に軸方向に並べて、隣り合う径変化部用筒状錐体間を接合している。このため、空洞構造体の径変化部の大径側と小径側の内径差が大きくても、該内径差に対応するように、径変化部の内側にライニング構造物を組み立てて、該空洞構造体の内周面を連続でライニングすることができる。   According to the above, after forming the plurality of diameter changing portion cylindrical cones corresponding to the diameter changing portion of the hollow structure from the diameter changing portion lining material, the cylindrical cones are arranged in order of decreasing diameter. Or it arranges in the axial direction inside the diameter change part in order of the larger, and joins the cylindrical cones for diameter change parts adjacent to each other. Therefore, even if the inner diameter difference between the large diameter side and the small diameter side of the diameter changing portion of the cavity structure is large, a lining structure is assembled inside the diameter changing portion so as to correspond to the inner diameter difference. The inner peripheral surface of the body can be continuously lined.

また、本発明では、一定幅で真直な帯状の径一定部用ライニング材を湾曲させて長手方向の両端部を結合することにより得られる、径一定部用筒状体を複数形成し、空洞構造体の内径が一定である径一定部の内側に複数の径一定部用筒状体を軸方向に並べて、隣り合う径一定部用筒状体間を接合し、径変化部と径一定部の境界部分の内側で、隣り合う径変化部用筒状錐体と径一定部用筒状体の間を接合してもよい。   Further, in the present invention, a plurality of constant-diameter portion cylindrical bodies obtained by curving a straight strip-shaped constant-diameter lining material having a constant width and joining both end portions in the longitudinal direction, A plurality of constant diameter cylindrical bodies are arranged in the axial direction inside the constant diameter part where the inner diameter of the body is constant, and the adjacent cylindrical bodies for constant diameter part are joined together, and the diameter changing part and the constant diameter part You may join between the cylindrical cone for diameter change parts and the cylindrical body for constant diameter parts which adjoin each other inside a boundary part.

これにより、径一定部用ライニング材から空洞構造体の径一定部に対応した複数の径一定部用筒状体を形成した後、該径一定部用筒状体を径一定部の内側に軸方向に並べて、隣り合う径一定部用筒状体間を接合することで、径一定部に対応したライニング構造物を組み立てることができる。また、空洞構造体の径変化部と径一定部の境界部分で、隣り合う径一定部用筒状体と径変化部用筒状錐体の間を接合することで、ライニング構造物を連続させて、空洞構造体の内周面を連続でライニングすることができる。   Thus, after forming a plurality of constant-diameter portion cylindrical bodies corresponding to the constant-diameter portion of the hollow structure from the constant-diameter portion lining material, the cylindrical portions for the constant-diameter portion are arranged inside the constant-diameter portion. A lining structure corresponding to the constant diameter portion can be assembled by joining adjacent cylindrical bodies for constant diameter portion in the direction. In addition, the lining structure can be made continuous by joining between the cylindrical body for the constant diameter portion and the cylindrical cone for the diameter changing portion at the boundary between the diameter changing portion and the constant diameter portion of the hollow structure. Thus, the inner peripheral surface of the hollow structure can be continuously lined.

また、本発明では、径変化部用筒状錐体の両端部に第1嵌合部が設けられていて、幅方向の両端部に第2嵌合部が設けられた帯状の径変化部用接合材をさらに備えてもよい。この場合、径変化部の内側で隣り合う径変化部用筒状錐体の第1嵌合部と、径変化部用接合材の各第2嵌合部とをそれぞれ嵌合することにより、径変化部用筒状錐体間を径変化部用接合材で接合し、径変化部用接合材の長手方向の両端部を結合すればよい。   Moreover, in this invention, the 1st fitting part is provided in the both ends of the cylindrical cone for diameter change parts, and it is for strip | belt-shaped diameter change parts in which the 2nd fitting part was provided in the both ends of the width direction. A bonding material may be further provided. In this case, by fitting the first fitting portions of the cylindrical cones for the diameter change portion adjacent to each other inside the diameter change portion and the respective second fitting portions of the diameter change portion bonding material, What is necessary is just to join between the cylindrical cones for change parts with the joining material for diameter change parts, and to join the both ends of the longitudinal direction of the joining material for diameter change parts.

これにより、空洞構造体の径変化部の内側で隣り合う径変化部用筒状錐体間を、径変化部用接合材により容易に接合して、径変化部に対応したライニング構造物を組み立て易くすることができる。   As a result, the cylindrical cones for the diameter-changing portion that are adjacent to each other inside the diameter-changing portion of the hollow structure are easily joined with the joint material for the diameter-changing portion, and a lining structure corresponding to the diameter-changing portion is assembled. Can be made easier.

さらに、本発明では、径一定部用筒状体の両端部に第3嵌合部が設けられていて、幅方向の両端部に第4嵌合部が設けられた帯状の径一定部用接合材をさらに備えてもよい。この場合、径一定部の内側で隣り合う径一定部用筒状体の第3嵌合部と、径一定部用接合材の第4嵌合部とをそれぞれ嵌合することにより、径一定部用筒状体間を径一定部用接合材で接合し、径一定部用接合材の長手方向の両端部を結合すればよい。また、径変化部と径一定部の境界部分の内側で隣り合う径変化部用筒状錐体と径一定部用筒状体のうち、径変化部用筒状錐体の一方の第1嵌合部を、径変化部用接合材の一方の第2嵌合部と嵌合し、径一定部用筒状体の一方の第3嵌合部を、径一定部用接合材の一方の第4嵌合部と嵌合し、径変化部用接合材の他方の第2嵌合部と径一定部用接合材の他方の第4嵌合部とを嵌合することにより、径変化部用筒状錐体と径一定部用筒状体の間を径変化部用接合材と径一定部用接合材で接合してもよい。   Further, in the present invention, the belt-shaped joint for constant diameter portion in which the third fitting portion is provided at both ends of the cylindrical member for constant diameter portion and the fourth fitting portion is provided at both ends in the width direction. You may further provide material. In this case, by fixing the third fitting portion of the cylindrical member for the constant diameter portion adjacent to the inside of the constant diameter portion and the fourth fitting portion of the bonding material for the constant diameter portion, the constant diameter portion What is necessary is just to join between the cylindrical bodies with the joining material for constant diameter parts, and to join the both ends of the longitudinal direction of the joining material for constant diameter parts. Also, one of the first fittings of the cylindrical cones for the diameter changing portion among the cylindrical cones for the diameter changing portion and the cylindrical bodies for the constant diameter portion which are adjacent to each other inside the boundary portion between the diameter changing portion and the constant diameter portion. The joint portion is fitted to one second fitting portion of the diameter-changing portion bonding material, and one third fitting portion of the constant-diameter portion tubular body is fitted to one of the first constant-diameter portion bonding materials. By fitting with the 4 fitting portion and fitting the other second fitting portion of the diameter changing portion bonding material and the other fourth fitting portion of the diameter constant portion bonding material, for the diameter changing portion You may join between a cylindrical cone and the cylindrical body for constant diameter parts with the diameter changing part joining material and the constant diameter part joining material.

これにより、空洞構造体の径一定部の内側で、隣り合う径一定部用筒状体間を径一定部用接合材により容易に接合して、径一定部に対応したライニング構造物を組み立て易くすることができる。また、径変化部と径一定部の境界部分の内側で、隣り合う径変化部用筒状錐体と径一定部用筒状体の間を径変化部用接合材と径一定部用接合材で容易に接合して、ライニング構造物を組み立て易くすることができる。さらに、隣り合う径変化部用筒状錐体と径一定部用筒状体とが大きな角度で曲がっていても、該曲がりを径一定部用筒状体と径変化部用接合材の間の嵌合部分や各接合材により吸収して、径変化部用筒状錐体と径一定部用筒状体を確実に接合することができる。このため、空洞構造体の径変化部と径一定部の境界部分の内側で組み立てるライニング構造物の連続性を高めることが可能となる。   This makes it easy to assemble the lining structure corresponding to the constant diameter portion by easily joining the adjacent constant diameter portion cylindrical bodies with the constant diameter portion bonding material inside the constant diameter portion of the hollow structure. can do. Further, inside the boundary portion between the diameter changing portion and the constant diameter portion, between the adjacent diameter changing portion cylindrical cone and the constant diameter portion cylindrical body, the diameter changing portion bonding material and the constant diameter portion bonding material. Can be easily joined to make the lining structure easy to assemble. Furthermore, even if the adjacent cylindrical cone for a diameter changing portion and the cylindrical body for a constant diameter portion are bent at a large angle, the bend is formed between the cylindrical body for the constant diameter portion and the bonding material for the diameter changing portion. It is absorbed by the fitting portion and each bonding material, and the cylindrical cone for the diameter changing portion and the cylindrical body for the constant diameter portion can be reliably bonded. For this reason, it becomes possible to improve the continuity of the lining structure assembled inside the boundary portion between the diameter changing portion and the constant diameter portion of the hollow structure.

本発明によれば、径変化部を有する空洞構造体の内周面を連続でライニングすることができる。   ADVANTAGE OF THE INVENTION According to this invention, the inner peripheral surface of the cavity structure which has a diameter change part can be lined continuously.

本発明の実施形態による径変化部用ライニング材を示した図である。It is the figure which showed the lining material for diameter change parts by embodiment of this invention. 本発明の実施形態による径変化部用筒状錐体を示した図である。It is the figure which showed the cylindrical cone for diameter change parts by embodiment of this invention. 本発明の実施形態による径変化部用接合材の側面図である。It is a side view of the joining material for diameter change parts by the embodiment of the present invention. 本発明の実施形態による径一定部用ライニング材の側面図である。It is a side view of the lining material for constant diameter parts by embodiment of this invention. 本発明の実施形態による径一定部用筒状体の斜視図である。It is a perspective view of the cylindrical body for constant diameter parts by embodiment of this invention. 本発明の実施形態による径一定部用接合材の側面図である。It is a side view of the joining material for constant diameter parts by embodiment of this invention. 本発明の実施形態によるライニング工法の適用例を示した図である。It is the figure which showed the example of application of the lining construction method by embodiment of this invention. 図7のA−A断面図である。It is AA sectional drawing of FIG. 径一定部用筒状体同士の接合部分の断面図である。It is sectional drawing of the junction part of the cylindrical bodies for constant diameter parts. 本発明の実施形態によるライニング工法の適用例を示した図である。It is the figure which showed the example of application of the lining construction method by embodiment of this invention. 小径側の径一定部用筒状体と径変化部用筒状錐体の接合部分の断面図である。It is sectional drawing of the junction part of the cylindrical body for constant diameter parts and the cylindrical cone for diameter change parts by the side of a small diameter. 径変化部用筒状錐体同士の接合部分の断面図である。It is sectional drawing of the junction part of the cylindrical cones for diameter change parts. 本発明の実施形態によるライニング工法の適用例を示した図である。It is the figure which showed the example of application of the lining construction method by embodiment of this invention. 図13のB−B断面図である。It is BB sectional drawing of FIG. 径変化部用筒状錐体と大径側の径一定部用筒状体の接合部分の断面図である。It is sectional drawing of the junction part of the cylindrical cone for diameter change parts, and the cylindrical body for constant diameter parts of a large diameter side.

以下、本発明の実施形態につき、図面を参照しながら説明する。各図において、同一の部分または対応する部分には、同一符号を付してある。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

まず、本実施形態のライニング工法で用いる部材を、図1〜図6を参照しながら説明する。   First, members used in the lining method according to the present embodiment will be described with reference to FIGS.

図1は、径変化部用ライニング材1を示した図であり、(a)は上面図、(b)は側面図である。径変化部用ライニング材1は、合成樹脂製で、可撓性を有している。径変化部用ライニング材1は、本発明の「ライニング材」の一例である。   1A and 1B are views showing a lining material 1 for a diameter change portion, where FIG. 1A is a top view and FIG. 1B is a side view. The diameter change part lining material 1 is made of synthetic resin and has flexibility. The diameter changing portion lining material 1 is an example of the “lining material” of the present invention.

図1(a)に示すように、径変化部用ライニング材1は、幅方向の一側縁1Lと他側縁1Rの曲率半径を異ならせることで、円弧状にカーブした一定幅の帯状に形成されている。図1(b)に示すように、径変化部用ライニング材1の両側縁1L、1Rには、厚み方向の裏側(図1(b)で上側)へ突出するように、凸状の第1嵌合部1aがそれぞれ設けられている。第1嵌合部1aの間には、厚み方向の裏側へ突出するように、複数のリブ1bが所定の間隔で設けられている。   As shown in FIG. 1 (a), the diameter changing portion lining material 1 is formed into a belt having a constant width curved in an arc by changing the curvature radii of the one side edge 1L and the other side edge 1R in the width direction. Is formed. As shown in FIG. 1 (b), convex side first edges 1L and 1R of the diameter change portion lining material 1 protrude so as to protrude to the back side in the thickness direction (upper side in FIG. 1 (b)). A fitting portion 1a is provided. Between the 1st fitting parts 1a, the several rib 1b is provided in the predetermined space | interval so that it may protrude to the back side of the thickness direction.

径変化部用ライニング材1を所定の長さに加工した後、第1嵌合部1aとリブ1bが外側に来るように、径変化部用ライニング材1を厚み方向に湾曲させて、長手方向の両端部1dを結合することにより、図2に示すような、径変化部用筒状錐体2が形成される。径変化部用ライニング材1の両端部1dの結合は、たとえば熱や超音波などによる融着手段、結合金具、または接着剤などを用いて行う。   After the diameter changing portion lining material 1 is processed to a predetermined length, the diameter changing portion lining material 1 is curved in the thickness direction so that the first fitting portion 1a and the rib 1b come to the outside. By joining the two end portions 1d, a cylindrical cone 2 for a diameter changing portion as shown in FIG. 2 is formed. The end portions 1d of the diameter change portion lining material 1 are joined by using, for example, a fusion means by heat or ultrasonic waves, a fitting, or an adhesive.

図2は、径変化部用筒状錐体2を示した図であり、(a)は正面図、(b)は側面図である。径変化部用筒状錐体2は、正面から見ると、図2(a)に示すように矩形状になっていて、側面から見ると、図2(b)に示すように台形状になっている。径変化部用筒状錐体2の両端面2bは、平行になっている。   2A and 2B are diagrams showing the cylindrical cone 2 for a diameter changing portion, where FIG. 2A is a front view and FIG. 2B is a side view. When viewed from the front, the cylindrical cone 2 for the diameter changing portion has a rectangular shape as shown in FIG. 2 (a), and when viewed from the side, it has a trapezoidal shape as shown in FIG. 2 (b). ing. Both end faces 2b of the diameter changing portion cylindrical cone 2 are parallel to each other.

たとえば、図1の径変化部用ライニング材1を異なる長さ(円弧長)の複数のライニング材に切断した後、該切断後のライニング材1を厚み方向に湾曲させて、長手方向の両端部1dを結合する。この作業を、切断した複数のライニング材1のそれぞれについて行う。これにより、大きさの異なる径変化部用筒状錐体2が複数形成される。そして、該各筒状錐体2の大径部2L同士の径および小径部2R同士の径がは、徐々に拡大または縮小するように異なっている。   For example, after the lining material 1 for a diameter-changing portion in FIG. 1 is cut into a plurality of lining materials having different lengths (arc lengths), the lining material 1 after the cutting is curved in the thickness direction, and both end portions in the longitudinal direction Join 1d. This operation is performed for each of the cut lining materials 1. Thereby, the cylindrical cone 2 for diameter change parts from which a magnitude | size differs is formed in multiple numbers. The diameters of the large diameter portions 2L and the diameters of the small diameter portions 2R of the cylindrical cones 2 are different from each other so as to gradually expand or contract.

図3は、径変化部用接合材4の側面図である。径変化部用接合材4は、径変化部用ライニング材1と同一の合成樹脂からなり、図3で紙面に対して垂直な方向に延びるように帯状に形成されていて、可撓性を有している。径変化部用接合材4の幅は、一定であり、径変化部用ライニング材1の幅より小さくなっている。   FIG. 3 is a side view of the diameter changing portion bonding material 4. The diameter change portion bonding material 4 is made of the same synthetic resin as the diameter change portion lining material 1 and is formed in a strip shape extending in a direction perpendicular to the paper surface in FIG. doing. The width of the diameter changing portion bonding material 4 is constant and smaller than the width of the diameter changing portion lining material 1.

径変化部用接合材4の幅方向の両端部には、厚み方向の裏側(図3で上側)へ窪むように、凹状の第2嵌合部4aが設けられている。径変化部用接合材4の幅方向の中央部には、厚み方向の表側(図3で下側)へ窪むように、撓み部4bが設けられている。   Concave second fitting portions 4a are provided at both ends in the width direction of the diameter changing portion bonding material 4 so as to be recessed toward the back side in the thickness direction (upper side in FIG. 3). A bending portion 4b is provided at the central portion in the width direction of the diameter changing portion bonding material 4 so as to be recessed toward the front side in the thickness direction (lower side in FIG. 3).

図4は、径一定部用ライニング材6の側面図である。径一定部用ライニング材6は、径変化部用ライニング材1と同一の合成樹脂からなり、図4で紙面に対して垂直な方向に延びるように帯状に形成されていて、可撓性を有している。径一定部用ライニング材6の幅は、一定であり、径変化部用ライニング材1より大きくなっている。   FIG. 4 is a side view of the constant diameter portion lining material 6. The constant-diameter portion lining material 6 is made of the same synthetic resin as the diameter-variable portion lining material 1, and is formed in a strip shape so as to extend in a direction perpendicular to the paper surface in FIG. doing. The width of the constant diameter portion lining material 6 is constant and is larger than that of the diameter changing portion lining material 1.

径一定部用ライニング材6の幅方向の両端部には、厚み方向の裏側(図4で上側)へ窪むように、凹状の第3嵌合部6aが設けられている。径一定部用ライニング材6の裏面には、所定の間隔でリブ6bが設けられている。   Recessed third fitting portions 6a are provided at both ends in the width direction of the constant diameter portion lining material 6 so as to be recessed toward the back side in the thickness direction (upper side in FIG. 4). Ribs 6b are provided on the back surface of the constant diameter portion lining material 6 at predetermined intervals.

リブ6bが外側に来るように、径一定部用ライニング材6を長手方向に湾曲させて、長手方向の両端部6dを結合することにより、図5に示すような、径一定部用筒状体7が形成される。径一定部用ライニング材6の両端部6dの結合は、たとえば融着手段、結合金具、または接着剤などを用いて行う。   The constant diameter portion lining material 6 is curved in the longitudinal direction so that the ribs 6b are on the outside, and the both end portions 6d in the longitudinal direction are joined together to form a cylindrical body for the constant diameter portion as shown in FIG. 7 is formed. The joining of both end portions 6d of the constant diameter portion lining material 6 is performed using, for example, a fusion means, a fitting, or an adhesive.

図5は、径一定部用筒状体7の斜視図である。径一定部用筒状体7は、正面から見て矩形状に形成されている。径一定部用筒状体7の両端面7bは、平行になっている。径一定部用筒状体7のコーナー部7cを形成し易くするため、径一定部用ライニング材6の各リブ6bには、長手方向に所定の間隔で切り込み6kが設けられている。   FIG. 5 is a perspective view of the cylindrical member 7 for a constant diameter portion. The cylindrical body 7 for a constant diameter portion is formed in a rectangular shape when viewed from the front. Both end faces 7b of the cylindrical member 7 for a constant diameter portion are parallel to each other. In order to make it easy to form the corner portion 7c of the cylindrical member 7 for the constant diameter portion, the ribs 6b of the lining material 6 for the constant diameter portion are provided with cuts 6k at predetermined intervals in the longitudinal direction.

同様に、図2の径変化部用筒状錐体2のコーナー部2cを形成し易くするため、図1の径変化部用ライニング材1の各リブ1bにも、長手方向に所定の間隔で切り込みを設けてもよい。   Similarly, in order to facilitate the formation of the corner portion 2c of the cylindrical cone 2 for the diameter change portion in FIG. 2, the ribs 1b of the diameter change portion lining material 1 in FIG. A cut may be provided.

図6は、径一定部用接合材3の側面図である。径一定部用接合材3は、図6で紙面に対して垂直な方向に延びるように帯状に形成されている。径一定部用接合材3の幅は、一定であり、径一定部用ライニング材6の幅より小さくなっている。径一定部用接合材3は、本体部3xとカバー3yとから構成されている。   FIG. 6 is a side view of the constant diameter portion bonding material 3. The constant diameter portion bonding material 3 is formed in a strip shape so as to extend in a direction perpendicular to the paper surface in FIG. 6. The width of the constant diameter portion bonding material 3 is constant and smaller than the width of the constant diameter portion lining material 6. The constant diameter portion bonding material 3 includes a main body portion 3x and a cover 3y.

本体部3xは、カバー3yより可撓性の高い合成樹脂製からなる。本体部3xの中央には、厚み方向の裏側(図6で上側)へ窪むように、溝3cが設けられている。本体部3xの両端部には、厚み方向の裏側(図6で上側)へ突出するように、凸状の第4嵌合部3aが設けられている。溝3cと各第4嵌合部3aの間には、幅方向に伸縮可能な撓み部3bが設けられている。   The main body 3x is made of a synthetic resin that is more flexible than the cover 3y. A groove 3c is provided at the center of the main body 3x so as to be recessed toward the back side in the thickness direction (upper side in FIG. 6). Convex fourth fitting portions 3a are provided at both ends of the main body portion 3x so as to protrude to the back side in the thickness direction (upper side in FIG. 6). Between the groove | channel 3c and each 4th fitting part 3a, the bending part 3b which can be expanded-contracted in the width direction is provided.

カバー3yは、径変化部用ライニング材1と同一の合成樹脂からなる。カバー3yの中央には、厚み方向の裏側(図6で上側)へ突出するように、突起3eが設けられている。本体部3xの溝3cにカバー3yの突起3eを嵌合させることで、本体部3xの表側を覆うように、カバー3yが取り付けられる。   The cover 3y is made of the same synthetic resin as that of the lining material 1 for a diameter change portion. At the center of the cover 3y, a protrusion 3e is provided so as to protrude to the back side in the thickness direction (upper side in FIG. 6). The cover 3y is attached so as to cover the front side of the main body 3x by fitting the protrusion 3e of the cover 3y into the groove 3c of the main body 3x.

次に、本実施形態のライニング工法を、図7〜図15を参照しながら説明する。   Next, the lining method of this embodiment is demonstrated, referring FIGS.

図7、図10、および図13は、本実施形態のライニング工法の適用例を示した図である。図8は、図7のA−A断面図である。図14は、図13のB−B断面図である。図9、図11、図12、および図15は、部材1〜4、6、7間の接合部分の断面図である。図7〜図15では、各部を見易くするため、ハッチングを省略している。   7, 10, and 13 are diagrams showing application examples of the lining method according to the present embodiment. FIG. 8 is a cross-sectional view taken along the line AA of FIG. 14 is a cross-sectional view taken along the line BB in FIG. 9, 11, 12, and 15 are cross-sectional views of a joint portion between the members 1 to 4, 6, and 7. In FIG. 7 to FIG. 15, hatching is omitted in order to make each part easy to see.

本ライニング工法は、たとえば図8などに示すような、矩形状の既設管やトンネルなどの空洞構造体Pの内周面を覆うようにライニングするために施工される。空洞構造体Pは、図7などに示すように、内径が一定である径一定部Paと、径一定部Paより大径でかつ内径が一定である径一定部Pbと、該径一定部Pa、Pb間にあって、内径が拡大または縮小するように変化する径変化部Pcとを有している。なお、本例では、径一定部Pa、Pb間の段差Pdから大径の径一定部Pbに向かう所定範囲を、径変化部Pcとしている。   This lining method is applied to line the inner peripheral surface of a hollow structure P such as a rectangular existing pipe or tunnel as shown in FIG. As shown in FIG. 7 and the like, the hollow structure P includes a constant diameter portion Pa having a constant inner diameter, a constant diameter portion Pb having a larger diameter and a constant inner diameter than the constant diameter portion Pa, and the constant diameter portion Pa. , Pb, and a diameter changing portion Pc that changes so that the inner diameter is enlarged or reduced. In this example, a predetermined range from the step Pd between the constant diameter portions Pa and Pb toward the large diameter constant portion Pb is defined as the diameter changing portion Pc.

たとえば、まず空洞構造体Pの一方(小径)の径一定部Paの内周面をライニングする。そのために、径一定部Paの内側の径や形状に対応させて、径一定部用ライニング材6(図4参照)を湾曲させて、長手方向の両端部6dを結合することにより、径一定部用筒状体7を形成する。   For example, first, the inner peripheral surface of one constant diameter portion Pa (small diameter) of the hollow structure P is lined. For this purpose, the constant-diameter portion is formed by curving the constant-diameter portion lining material 6 (see FIG. 4) in accordance with the inner diameter and shape of the constant-diameter portion Pa and joining the both end portions 6d in the longitudinal direction. A cylindrical body 7 is formed.

次に、図8に示すように、径一定部用筒状体7を径一定部Paの内側に配置する。このとき、補強のため、径一定部用筒状体7のストレート部7sには、金属製のストレートフレーム8sを装着し、コーナー部7cには、金属製のハンチフレーム8cを装着する。このフレーム8s、8cの径一定部用筒状体7への装着は、図9に示すような、連結棒材11や金具12や螺合部材13などを用いて行う。連結棒材11は、リブ6bに設けられた孔(符号省略)を貫通している。また、径一定部用筒状体7を位置決めし易くするため、図7および図8に示すように、径一定部Paの内周面にスペーサ9a、9bを取り付ける。   Next, as shown in FIG. 8, the cylindrical body 7 for a constant diameter part is disposed inside the constant diameter part Pa. At this time, for reinforcement, a metal straight frame 8s is attached to the straight portion 7s of the cylindrical member 7 having a constant diameter, and a metal hunch frame 8c is attached to the corner portion 7c. The frames 8s and 8c are attached to the cylindrical member 7 having a constant diameter using a connecting bar 11, a metal fitting 12, a screwing member 13, and the like as shown in FIG. The connecting bar 11 passes through a hole (not shown) provided in the rib 6b. Further, in order to facilitate positioning of the cylindrical body 7 for a constant diameter portion, spacers 9a and 9b are attached to the inner peripheral surface of the constant diameter portion Pa as shown in FIGS.

次に、図7に示すように、径一定部Paの内側に複数の径一定部用筒状体7を軸方向に並べた後、径一定部用筒状体7間を径一定部用接合材3により接合する。   Next, as shown in FIG. 7, after arranging a plurality of constant diameter cylindrical bodies 7 inside the constant diameter portion Pa in the axial direction, the constant diameter portion cylindrical bodies 7 are joined to each other. Joining with the material 3.

詳しくは、図9に示すように、隣り合う径一定部用筒状体7の第3嵌合部6aに、径一定部用接合材3の第4嵌合部3aを厚み方向にそれぞれ嵌合することにより、径一定部用筒状体間7を径一定部用接合材3で接合する。このとき、水密性を高めるため、第3嵌合部6aと第4嵌合部3aの間に、図示しないシール材を挟み込んでもよい。   Specifically, as shown in FIG. 9, the fourth fitting portions 3 a of the constant diameter portion bonding material 3 are fitted in the thickness direction to the third fitting portions 6 a of the adjacent constant diameter portion cylindrical bodies 7. By doing so, the cylindrical member 7 for constant diameter parts is joined by the joining material 3 for constant diameter parts. At this time, a sealing material (not shown) may be sandwiched between the third fitting portion 6a and the fourth fitting portion 3a in order to improve water tightness.

また、予め径一定部用接合材3を長手方向に湾曲させて、長手方向の両端部3d(図6)を結合することにより、径一定部用接合材3を筒状にしてから、該筒状の径一定部用接合材3により径一定部用筒状体7間を接合してもよい。または、帯状のままの径一定部用接合材3により径一定部用筒状体7間を接合してから、径一定部用接合材3の両端部3dを結合してもよい。径一定部用接合材3の両端部3dの結合は、たとえば融着手段や接着剤などを用いて行う。   Further, the constant diameter portion bonding material 3 is curved in the longitudinal direction in advance, and the both end portions 3d (FIG. 6) in the longitudinal direction are joined to make the constant diameter portion bonding material 3 cylindrical. Alternatively, the cylindrical members 7 having a constant diameter may be joined together by the joint material 3 having a constant diameter. Or after joining between the cylindrical bodies 7 for constant diameter parts by the joining material 3 for constant diameter parts with a strip | belt shape, you may couple | bond the both ends 3d of the bonding material 3 for constant diameter parts. The joining of the both end portions 3d of the constant diameter portion bonding material 3 is performed using, for example, a fusion means or an adhesive.

また、径一定部用筒状体7間を径一定部用接合材3の本体部3xで接合してから、本体部3xにカバー3yを取り付けるようにしてもよい。または、径一定部用接合材3の本体部3xにカバー3yを取り付けて、径一定部用接合材3を組み立ててから、該径一定部用接合材3により径一定部用筒状体7間を接合してもよい。   Alternatively, the cover 3y may be attached to the main body portion 3x after the cylindrical bodies 7 for the constant diameter portion are joined together by the main body portion 3x of the bonding material 3 for the constant diameter portion. Alternatively, the cover 3y is attached to the body portion 3x of the constant diameter portion bonding material 3 to assemble the constant diameter portion bonding material 3, and then the constant diameter portion bonding material 3 is used to connect the constant diameter portion cylindrical body 7 May be joined.

上記工程により、径一定部Paの内周面を径一定部用ライニング材6と径一定部用接合材3によりライニングし終えると、次に径変化部Pcの内周面をライニングする。   When the inner peripheral surface of the constant diameter portion Pa is finished lining by the constant diameter portion lining material 6 and the constant diameter portion bonding material 3 by the above process, the inner peripheral surface of the diameter changing portion Pc is then lined.

そのために、径変化部Pcと径一定部Pa、Pbの形状、径変化部Pcの長さ、および径一定部Pa、Pbの内径差に対応させて、所定の長さに加工した複数の径変化部用ライニング材1を、それぞれ矩形状に湾曲させて、長手方向の両端部1dを結合することにより、複数の径変化部用筒状錐体2を形成する。また、各径変化部用筒状錐体2の大径部2L同士の径および小径部2R同士の径を徐々に拡大または縮小するように異ならせる。さらに、隣り合わせで配置する一方の径変化部用筒状錐体2の大径部2Lの径と、他方の径変化部用筒状錐体2の小径部2Rの径とを同一にする。   Therefore, a plurality of diameters processed to a predetermined length corresponding to the shape of the diameter changing portion Pc and the constant diameter portions Pa and Pb, the length of the diameter changing portion Pc, and the inner diameter difference between the constant diameter portions Pa and Pb. The change portion lining material 1 is curved into a rectangular shape, and the both end portions 1d in the longitudinal direction are joined together to form a plurality of cylindrical cones 2 for the diameter change portion. Further, the diameters of the large diameter portions 2L and the diameters of the small diameter portions 2R of the cylindrical cones 2 for each diameter changing portion are varied so as to be gradually enlarged or reduced. Further, the diameter of the large-diameter portion 2L of one of the diameter-changing portion cylindrical cones 2 arranged adjacent to each other is made the same as the diameter of the small-diameter portion 2R of the other diameter-changing portion cylindrical cone 2.

また、径変化部用筒状錐体2を位置決めし易くするため、図7に示すように、径変化部Pcの内周面に、スペーサ9c、9dを取り付ける。このうち、図7で上部に配置されたスペーサ9dは、段差Pdを隠すように、傾斜面9eを有している。   Further, in order to facilitate positioning of the diameter changing portion cylindrical cone 2, spacers 9c and 9d are attached to the inner peripheral surface of the diameter changing portion Pc as shown in FIG. Among these, the spacer 9d arranged in the upper part in FIG. 7 has an inclined surface 9e so as to hide the step Pd.

次に、図10に示すように、最も径の小さな径変化部用筒状錐体2を径一定部Paと径変化部Pcの境界部分の内側に配置する。そして、たとえば、隣り合う径一定部用筒状体7と径変化部用筒状錐体2の角度が小さければ、図11に示すように、径一定部用筒状体7の第3嵌合部6aと径変化部用筒状錐体2の第1嵌合部1aとを厚み方向に嵌合することにより、該径一定部用筒状体7と径変化部用筒状錐体2とを接合する。また、水密性を高めるため、第3嵌合部6aと第1嵌合部1aの間に、図示しないシール材を挟み込んでもよい。   Next, as shown in FIG. 10, the cylindrical cone 2 for the diameter changing portion with the smallest diameter is arranged inside the boundary portion between the constant diameter portion Pa and the diameter changing portion Pc. For example, if the angle between the adjacent cylindrical body 7 for a constant diameter portion and the cylindrical cone 2 for a diameter changing portion is small, as shown in FIG. By fitting the portion 6a and the first fitting portion 1a of the diameter changing portion cylindrical cone 2 in the thickness direction, the constant diameter portion cylindrical body 7 and the diameter changing portion cylindrical cone 2 Join. Moreover, in order to improve watertightness, you may insert the sealing material which is not shown in figure between the 3rd fitting part 6a and the 1st fitting part 1a.

一方、隣り合う径一定部用筒状体7と径変化部用筒状錐体2の角度が大きければ、後述するように、該径一定部用筒状体7と径変化部用筒状錐体2との間を2つの接合材3、4により接合すればよい(図15参照)。   On the other hand, if the angle between the adjacent cylindrical body for constant diameter portion 7 and the cylindrical cone for diameter change portion 2 is large, the cylindrical body for constant diameter portion 7 and the cylindrical cone for diameter change portion will be described later. What is necessary is just to join between the bodies 2 with the two joining materials 3 and 4 (refer FIG. 15).

次に、図10に示すように、径変化部Pcの内側に複数の径変化部用筒状錐体2を、たとえば小径部2Rの径が小さい順に径一定部Pbへ向かって軸方向に並べた後、径変化部用筒状錐体2間を径変化部用接合材4により接合する。   Next, as shown in FIG. 10, a plurality of cylindrical cones 2 for diameter changing portions are arranged inside the diameter changing portion Pc in the axial direction toward, for example, the constant diameter portion Pb in order of decreasing diameter of the small diameter portion 2R. After that, the diameter change portion cylindrical cones 2 are joined together by the diameter change portion joining material 4.

詳しくは、図12に示すように、隣り合う径変化部用筒状錐体2の第1嵌合部1aを、径変化部用接合材4の各第2嵌合部4aに厚み方向にそれぞれ嵌合することにより、径変化部用筒状錐体2間を径変化部用接合材4で接合する。このとき、水密性を高めるため、第1嵌合部1aと第2嵌合部4aの間に、図示しないシール材を挟み込んでもよい。   Specifically, as shown in FIG. 12, the first fitting portions 1 a of the adjacent cylindrical cones 2 for diameter change portions are respectively connected to the second fitting portions 4 a of the diameter change portion bonding material 4 in the thickness direction. By fitting, the cylindrical cones 2 for diameter change parts are joined by the joint material 4 for diameter change parts. At this time, a sealing material (not shown) may be sandwiched between the first fitting portion 1a and the second fitting portion 4a in order to improve water tightness.

また、予め径変化部用接合材4を長手方向に湾曲させて、長手方向の両端部4d(図3)を結合することにより、径変化部用接合材4を筒状にしてから、該筒状の径変化部用接合材4により径変化部用筒状錐体2間を接合してもよい。または、帯状のままの径変化部用接合材4により径変化部用筒状錐体2間を接合してから、該径変化部用接合材4の両端部4dを結合してもよい。径変化部用接合材4の両端部4dの結合は、たとえば融着手段や接着剤などを用いて行う。   In addition, the diameter-changing portion bonding material 4 is curved in the longitudinal direction in advance, and the both ends 4d (FIG. 3) in the longitudinal direction are joined to make the diameter-changing portion bonding material 4 cylindrical, and then the tube The diameter-changing portion cylindrical cones 2 may be joined to each other by means of the diameter-changing portion joining material 4. Or after joining between the cylindrical cones 2 for diameter change parts by the joining material 4 for diameter change parts with a strip | belt shape, both ends 4d of this diameter change part joining material 4 may be couple | bonded. The joining of both end portions 4d of the diameter changing portion bonding material 4 is performed using, for example, a fusion means or an adhesive.

上記工程により、径変化部Pcの内周面を径変化部用ライニング材1と径変化部用接合材4によりライニングし終えると、次に他方(大径)の径一定部Pbの内周面をライニングする。そのために、径一定部Pbの内側の径や形状に対応させて、径一定部用ライニング材6を湾曲させて、長手方向の両端部6dを結合することにより、径一定部用筒状体7を形成する。   When the inner circumferential surface of the diameter changing portion Pc is finished lining by the diameter changing portion lining material 1 and the diameter changing portion bonding material 4 by the above process, the inner circumferential surface of the other (large diameter) constant diameter portion Pb Lining. For this purpose, the constant-diameter portion tubular body 7 is formed by curving the constant-diameter portion lining material 6 in accordance with the inner diameter and shape of the constant-diameter portion Pb and joining both end portions 6d in the longitudinal direction. Form.

次に、図13に示すように、径一定部用筒状体7を径変化部Pcと径一定部Pbの境界部分の内側に配置する。このときも、補強のため、図14に示すように、径一定部用筒状体7のストレート部7sにはストレートフレーム8sを装着し、コーナー部7cにはハンチフレーム8cを装着する。また、径一定部用筒状体7を位置決めし易くするため、径一定部Pbの内周面にスペーサ9a、9bを取り付ける。   Next, as shown in FIG. 13, the constant diameter tubular portion 7 is disposed inside the boundary portion between the diameter changing portion Pc and the constant diameter portion Pb. Also at this time, as shown in FIG. 14, the straight frame 8s is attached to the straight portion 7s of the cylindrical member 7 having a constant diameter and the haunch frame 8c is attached to the corner portion 7c for reinforcement. Further, in order to easily position the cylindrical body 7 for the constant diameter portion, spacers 9a and 9b are attached to the inner peripheral surface of the constant diameter portion Pb.

そして、たとえば、径変化部Pcと径一定部Pbの境界部分の内側で隣り合う径変化部用筒状錐体2と径一定部用筒状体7の角度が大きければ、該径変化部用筒状錐体2と径一定部用筒状体7の間を径変化部用接合材4と径一定部用接合材3により接合する。   And, for example, if the angle between the cylindrical cone 2 for the diameter changing portion and the cylindrical body 7 for the constant diameter portion adjacent to each other inside the boundary portion between the diameter changing portion Pc and the constant diameter portion Pb is large, the diameter changing portion The cylindrical cone 2 and the constant diameter portion cylindrical body 7 are joined by the diameter changing portion bonding material 4 and the constant diameter portion bonding material 3.

詳しくは、図15に示すように、径変化部用筒状錐体2の一方の第1嵌合部1aを径変化部用接合材4の一方の第2嵌合部4aに嵌合する。また、径変化部用接合材4の他方の第2嵌合部4aに径一定部用接合材3の一方の第4嵌合部3aを嵌合する。さらに、径一定部用接合材3の他方の第4嵌合部3aを径一定部用筒状体7の一方の第3嵌合部6aに嵌合する。これにより、隣り合う径変化部用筒状錐体2と径一定部用筒状体7の間が、接合材4、3により接合される。   Specifically, as shown in FIG. 15, one first fitting portion 1 a of the diameter-changing portion cylindrical cone 2 is fitted to one second fitting portion 4 a of the diameter-changing portion bonding material 4. In addition, one fourth fitting portion 3 a of the constant diameter portion bonding material 3 is fitted to the other second fitting portion 4 a of the diameter changing portion bonding material 4. Further, the other fourth fitting portion 3 a of the constant diameter portion bonding material 3 is fitted to one third fitting portion 6 a of the constant diameter portion tubular body 7. Thereby, the adjacent cylindrical cones 2 for diameter changing portions and the cylindrical body 7 for constant diameter portions are joined by the joining materials 4 and 3.

また、水密性を高めるため、第1嵌合部1aと第2嵌合部4aの間、第2嵌合部4aと第4嵌合部3aの間、および第4嵌合部3aと第3嵌合部6aの間に、図示しないシール材を挟み込んでもよい。   Moreover, in order to improve watertightness, between the 1st fitting part 1a and the 2nd fitting part 4a, between the 2nd fitting part 4a and the 4th fitting part 3a, and the 4th fitting part 3a and 3rd. A sealing material (not shown) may be sandwiched between the fitting portions 6a.

また、予め接合材4、3を長手方向に湾曲させて、長手方向の両端部4d、3d(図3、図6)を結合することにより、接合材4、3をそれぞれ筒状にしてから、該筒状の接合材4、3により径一定部用筒状体7と径変化部用筒状錐体2の間を接合してもよい。または、帯状のままの接合材4、3により径一定部用筒状体7と径変化部用筒状錐体2の間を接合してから、該接合材4、3の両端部4d、3dを結合してもよい。接合材4、3の両端部4d、3dの結合も、たとえば融着手段や接着剤などを用いて行う。   In addition, by bending the bonding materials 4 and 3 in the longitudinal direction in advance and joining the longitudinal ends 4d and 3d (FIGS. 3 and 6), the bonding materials 4 and 3 are respectively cylindrical. You may join between the cylindrical body 7 for constant diameter parts, and the cylindrical cone 2 for diameter change parts by this cylindrical joining materials 4 and 3. FIG. Or after joining between the cylindrical body 7 for constant diameter parts and the cylindrical cone 2 for diameter change parts with the joining materials 4 and 3 with a strip | belt shape, both ends 4d and 3d of this joining material 4 and 3 are used. May be combined. Bonding of both end portions 4d and 3d of the bonding materials 4 and 3 is also performed using, for example, a fusion means or an adhesive.

一方、径変化部Pcと径一定部Pbの境界部分で、隣り合う径変化部用筒状錐体2と径一定部用筒状体7の角度が小さければ、前述したように、径変化部用筒状錐体2の第1嵌合部1aを径一定部用筒状体7の第3嵌合部6aに嵌合することにより、径変化部用筒状錐体2と径一定部用筒状体7を直接接合すればよい(図11参照)。   On the other hand, if the angle between the adjacent diameter-changing portion cylindrical cone 2 and the diameter-changing portion cylindrical body 7 is small at the boundary portion between the diameter-changing portion Pc and the constant-diameter portion Pb, as described above, the diameter-changing portion By fitting the first fitting portion 1a of the cylindrical cone 2 for use with the third fitting portion 6a of the cylindrical member 7 for the constant diameter portion, the cylindrical cone 2 for the diameter changing portion and the constant diameter portion What is necessary is just to join the cylindrical body 7 directly (refer FIG. 11).

上記工程により、径変化部Pcと径一定部Pbの境界部分で、隣り合う径変化部用筒状錐体2と径一定部用筒状体7を接合し終えると、次に径一定部Pbの内側に複数の径一定部用筒状体7を軸方向に並べて、前述したように径一定部用筒状体7間を径一定部用接合材3により接合する(図9参照)。   When the adjacent diameter-changing portion cylindrical cone 2 and the constant-diameter portion cylindrical body 7 have been joined at the boundary portion between the diameter-changing portion Pc and the constant-diameter portion Pb by the above process, the constant-diameter portion Pb is then joined. A plurality of constant diameter cylindrical bodies 7 are arranged in the axial direction, and the constant diameter cylindrical bodies 7 are joined together by the constant diameter portion bonding material 3 as described above (see FIG. 9).

以上の工程により、図13に示すように、径一定部Pa、Pbと径変化部Pcを有する空洞構造体Pの内側に、ライニング材1、6と接合材3、4により構成されたライニング構造物100が連続で組み立てられる。すなわち、空洞構造体Pの内周面が連続でライニングされた状態となる。   Through the above steps, as shown in FIG. 13, the lining structure constituted by the lining materials 1 and 6 and the bonding materials 3 and 4 inside the hollow structure P having the constant diameter portions Pa and Pb and the diameter changing portion Pc. The object 100 is assembled continuously. That is, the inner peripheral surface of the cavity structure P is continuously lined.

この後、ライニング構造物100の内側に、図示しない支保工が設置され、空洞構造体Pとライニング構造物100の間に数段階に分けて充填材が注入される。そして、充填材が硬化することで、空洞構造体Pとライニング構造物100が一体化される。   Thereafter, a support work (not shown) is installed inside the lining structure 100, and the filler is injected between the hollow structure P and the lining structure 100 in several stages. And the cavity structure P and the lining structure 100 are integrated by hardening a filler.

上記実施形態によると、円弧状にカーブした一定幅で帯状の径変化部用ライニング材1から、空洞構造体Pの径変化部Pcに対応した、径の異なる複数の径変化部用筒状錐体2を形成している。そして、その複数の径変化部用筒状錐体2を小径部2Rの径が小さい順に径変化部Pcの内側に軸方向に並べて、隣り合う径変化部用筒状錐体2間を径変化部用接合材4により接合している。このため、空洞構造体Pの径変化部Pcの大径側と小径側の内径差が大きくても、該内径差に対応するように、径変化部Pcの内側にライニング構造物100を組み立てることができる。   According to the above embodiment, a plurality of cylindrical cones for different diameter changing portions corresponding to the diameter changing portion Pc of the cavity structure P from the belt-shaped diameter changing portion lining material 1 having a constant width curved in an arc shape. The body 2 is formed. Then, the plurality of diameter change portion cylindrical cones 2 are arranged in the axial direction inside the diameter change portion Pc in order of decreasing diameter of the small diameter portion 2R, and the diameter change between the adjacent diameter change portion cylindrical cones 2 is performed. It joins with the joining material 4 for parts. For this reason, the lining structure 100 is assembled inside the diameter changing portion Pc so as to correspond to the inner diameter difference even if the inner diameter difference between the large diameter side and the small diameter side of the diameter changing portion Pc of the cavity structure P is large. Can do.

また、一定幅で真直な帯状の径一定部用ライニング材6から、空洞構造体Pの径一定部Pa、Pbに対応した複数の径一定部用筒状体7を形成している。そして、その複数の径一定部用筒状体7を径一定部Pa、Pbの内側に軸方向に並べて、隣り合う径一定部用筒状体7間を径一定部用接合材3により接合している。このため、径一定部Pa、Pbに対応したライニング構造物100を組み立てることができる。   Also, a plurality of constant-diameter portion cylindrical bodies 7 corresponding to the constant-diameter portions Pa and Pb of the cavity structure P are formed from a straight strip-shaped constant-diameter lining material 6 having a constant width. Then, the plurality of constant diameter tubular portions 7 are arranged in the axial direction inside the constant diameter portions Pa and Pb, and the adjacent constant diameter portion cylindrical bodies 7 are joined together by the constant diameter portion bonding material 3. ing. For this reason, the lining structure 100 corresponding to the constant diameter portions Pa and Pb can be assembled.

また、空洞構造体Pの径一定部Pa、Pbと径変化部Pcの境界部分で、隣り合う径一定部用筒状体7と径変化部用筒状錐体2の間を、直接または接合材3、4を介して接合している。このため、径一定部Pa、Pbと径変化部Pcの境界部分の内側で、ライニング構造物100を連続させることができる。   Further, at the boundary portion between the constant diameter portions Pa, Pb and the diameter change portion Pc of the hollow structure P, the adjacent diameter constant portion cylindrical body 7 and the diameter change portion cylindrical cone 2 are directly or jointed. It joins via the materials 3 and 4. For this reason, the lining structure 100 can be made continuous inside the boundary portion between the constant diameter portions Pa and Pb and the diameter changing portion Pc.

よって、径一定部Pa、Pbと径変化部Pcを有する空洞構造体Pの内側に、連続したライニング構造物100を組み立てて、空洞構造体Pの内周面を連続でライニングすることが可能となる。   Therefore, it is possible to assemble the continuous lining structure 100 inside the hollow structure P having the constant diameter portions Pa and Pb and the diameter changing portion Pc and continuously line the inner peripheral surface of the hollow structure P. Become.

また、上記実施形態では、径変化部Pcの内側で、変化部用筒状錐体2の第1嵌合部1aを、径変化部用接合材4の第2嵌合部4aに嵌合することにより、隣り合う径変化部用筒状錐体2間を径変化部用接合材4で接合している。このため、径変化部用筒状錐体2間の接合が容易になり、径変化部Pcに対応したライニング構造物100を組み立て易くすることができる。   Moreover, in the said embodiment, the 1st fitting part 1a of the cylindrical cone 2 for change parts is fitted to the 2nd fitting part 4a of the bonding material 4 for diameter change parts inside the diameter change part Pc. Thereby, the cylindrical cones 2 for diameter change parts which adjoin each other are joined by the joining material 4 for diameter change parts. For this reason, joining between the cylindrical cones 2 for diameter change parts becomes easy, and it can make it easy to assemble the lining structure 100 corresponding to the diameter change part Pc.

また、上記実施形態では、径一定部Pa、Pbの内側で、径一定部用筒状体7の第3嵌合部6aを、径一定部用接合材3の第4嵌合部3aに嵌合することにより、隣り合う径一定部用筒状体7間を径一定部用接合材3で接合している。このため、径一定部用筒状体7間の接合が容易になり、径一定部Pa、Pbに対応したライニング構造物100を組み立て易くすることができる。   Moreover, in the said embodiment, the 3rd fitting part 6a of the cylindrical body 7 for fixed diameter parts is fitted in the 4th fitting part 3a of the bonding material 3 for fixed diameter parts inside the diameter fixed parts Pa and Pb. By joining, the adjacent diameter-constant portion cylindrical bodies 7 are joined by the constant-diameter portion joining material 3. For this reason, joining between the cylindrical bodies 7 for constant diameter portions is facilitated, and the lining structure 100 corresponding to the constant diameter portions Pa and Pb can be easily assembled.

また、上記実施形態では、径変化部Pcと径一定部Pa、Pbの境界部分の内側で、径変化部用筒状錐体2の一方の第1嵌合部1aを、径変化部用接合材4の一方の第2嵌合部4aに嵌合し、径一定部用接合材3の各第4嵌合部3aを、径変化部用接合材4の他方の第2嵌合部4aと径一定部用筒状体7の一方の第3嵌合部6aに嵌合している。このため、隣り合う径変化部用筒状錐体2と径一定部用筒状体7の間を接合材4、3で容易に接合して、ライニング構造物100を組み立て易くすることができる。   Moreover, in the said embodiment, inside the boundary part of the diameter change part Pc and the diameter fixed parts Pa and Pb, one 1st fitting part 1a of the cylindrical cone 2 for diameter change parts is joined for diameter change parts. It fits into one second fitting portion 4a of the material 4, and each fourth fitting portion 3a of the constant diameter portion joining material 3 is connected to the other second fitting portion 4a of the diameter changing portion joining material 4. It is fitted to one third fitting portion 6a of the cylindrical body 7 for a constant diameter portion. For this reason, it is possible to easily assemble the lining structure 100 by easily joining the adjacent cylindrical cones 2 for a diameter changing portion and the cylindrical body 7 for a constant diameter portion with the bonding materials 4 and 3.

さらに、隣り合う径変化部用筒状錐体2と径一定部用筒状体7とが大きな角度で曲がっていても、径変化部用筒状錐体2と接合材3、4と径一定部用筒状体7の嵌合部分の嵌合状態を調節したり、接合材3、4の撓み部3b、4bを変形させたりすることで、径変化部用筒状錐体2と径一定部用筒状体7の曲がりを吸収することができる。このため、径変化部用筒状錐体2と径一定部用筒状体7を確実に接合して、径変化部Pcと径一定部Pa、Pbの境界部分の内側で組み立てるライニング構造物100の連続性を高めることが可能となる。   Further, even if the adjacent cylindrical cones 2 for a diameter changing portion and the cylindrical body 7 for a constant diameter portion are bent at a large angle, the diameter changing portion cylindrical cone 2 and the bonding materials 3 and 4 have a constant diameter. By adjusting the fitting state of the fitting portion of the tubular member 7 for the portion or deforming the bending portions 3b, 4b of the bonding materials 3, 4, the diameter of the cylindrical cone 2 for the diameter changing portion is constant. The bending of the tubular member 7 can be absorbed. For this reason, the lining structure 100 assembled by joining the diameter-changing portion cylindrical cone 2 and the constant-diameter portion cylindrical body 7 reliably inside the boundary portion between the diameter-changing portion Pc and the constant-diameter portions Pa and Pb. It becomes possible to improve the continuity of.

本発明では、以上述べた以外にも種々の実施形態を採用することができる。たとえば、以上の実施形態では、図13などに示したように、空洞構造体Pの径変化部Pcの内側で、スペーサ9dや重力などにより径変化部用筒状錐体2を下方に寄せた例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、空洞構造体の径変化部の内周面において、上部だけでなく、下部や側部にも傾斜面を有するスペーサを配置して、径変化部用筒状錐体を空洞構造体の中心軸側や一方のコーナー側へ寄せてもよい。   In the present invention, various embodiments other than those described above can be adopted. For example, in the above embodiment, as shown in FIG. 13 and the like, the diameter-changing portion cylindrical cone 2 is moved downward by the spacer 9d or gravity inside the diameter-changing portion Pc of the hollow structure P. Although an example is shown, the present invention is not limited to this. In addition to this, for example, spacers having inclined surfaces are arranged not only at the upper part but also at the lower part and the side part on the inner peripheral surface of the diameter changing part of the hollow structure, so that the cylindrical cone for the diameter changing part is hollow. You may approach to the center axis side or one corner side of the structure.

また、以上の実施形態では、径変化部用筒状錐体2の凸状の第1嵌合部1aを、径変化部用接合材4の凹状の第2嵌合部4aに厚み方向に嵌合した例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、径変化部用筒状錐体の第1嵌合部と径変化部用接合材の第2嵌合部のうち、一方を凹状にし、他方を凸状にして、これらを幅方向または厚み方向に嵌合させてもよい。   Moreover, in the above embodiment, the convex first fitting portion 1a of the cylindrical cone 2 for the diameter changing portion is fitted in the thickness direction to the concave second fitting portion 4a of the bonding material 4 for the diameter changing portion. Although a combined example is shown, the present invention is not limited to this. Other than this, for example, one of the first fitting portion of the cylindrical cone for the diameter changing portion and the second fitting portion of the bonding material for the diameter changing portion is made concave, and the other is made convex. You may make it fit in the width direction or the thickness direction.

また、以上の実施形態では、径一定部用接合材3の凸状の第4嵌合部3aを、径一定部用筒状体7の凹状の第3嵌合部6aに厚み方向に嵌合した例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、径一定部用接合材の第4嵌合部と径一定部用筒状体の第3嵌合部のうち、一方を凹状にし、他方を凸状にして、これらを厚み方向または幅方向に嵌合してもよい。   Further, in the above embodiment, the convex fourth fitting portion 3a of the constant diameter portion bonding material 3 is fitted in the thickness direction to the concave third fitting portion 6a of the constant diameter portion cylindrical body 7. However, the present invention is not limited to this example. In addition to this, for example, one of the fourth fitting portion of the bonding member for constant diameter portion and the third fitting portion of the cylindrical member for constant diameter portion is made concave and the other is made convex. You may fit in a direction or a width direction.

また、以上の実施形態では、径一定部用接合材3の凸状の第4嵌合部3aを、径変化部用接合材4の凹状の第2嵌合部4aに厚み方向に嵌合した例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、径一定部用接合材3の第4嵌合部と径変化部用接合材の第2嵌合部のうち、一方を凹状にし、他方を凸状にして、これらを厚み方向または幅方向に嵌合してもよい。   Moreover, in the above embodiment, the convex 4th fitting part 3a of the joining material 3 for constant diameter parts was fitted to the concave 2nd fitting part 4a of the joining material 4 for diameter change parts in the thickness direction. Although an example is shown, the present invention is not limited to this. In addition to this, for example, one of the fourth fitting portion of the constant diameter portion bonding material 3 and the second fitting portion of the diameter changing portion bonding material has a concave shape and the other has a convex shape. You may fit in a direction or a width direction.

また、以上の実施形態では、複数の径変化部用筒状錐体2間を径変化部用接合材4により接合した例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、径変化部用筒状錐体同士を、径変化部接合材4を用いずに、径変化部用筒状錐体に設けた凹凸嵌合構造により直接接合したり、融着手段や接着剤などにより接合したりしてもよい。また、径一定部用筒状体同士も、径一定部接合材3を用いずに、径一定部用筒状体に設けた凹凸嵌合構造により直接接合したり、融着手段や接着剤などにより接合したりしてもよい。   Moreover, although the example which joined between the cylindrical cones 2 for several diameter change parts with the diameter changing part joining material 4 was shown in the above embodiment, this invention is not limited only to this. In addition to this, for example, the cylindrical cones for the diameter-changing portion can be directly joined to each other by the concave-convex fitting structure provided in the cylindrical cone for the diameter-changing portion without using the diameter-changing portion bonding material 4 or fused. You may join by a wearing means, an adhesive agent, etc. Further, the cylindrical members for the constant diameter portion are also directly joined to each other by the concave-convex fitting structure provided in the cylindrical member for the constant diameter portion without using the constant diameter portion bonding material 3, or a fusion means, an adhesive, or the like. May be joined.

また、以上の実施形態では、空洞構造物Pの径変化部Pcの内周面を小径側から大径側に向かってライニングした例を示したが、本発明はこれのみに限定するものではない。逆に、径変化部Pcの内周面を大径側から小径側に向かってライニングしてもよい。この場合、たとえば、径変化部Pcの内側で複数の径変化部用筒状錐体2を大径部2Lの径が大きい順に軸方向に並べて、隣り合う径変化部用筒状錐体2間を接合すればよい。   Moreover, in the above embodiment, although the example which lined the inner peripheral surface of the diameter change part Pc of the cavity structure P toward the large diameter side from the small diameter side was shown, this invention is not limited only to this. . Conversely, the inner peripheral surface of the diameter changing portion Pc may be lined from the large diameter side toward the small diameter side. In this case, for example, a plurality of diameter change portion cylindrical cones 2 are arranged in the axial direction in the descending order of the diameter of the large diameter portion 2L inside the diameter change portion Pc, and between the adjacent diameter change portion cylindrical cones 2. Can be joined.

さらに、以上の実施形態では、矩形状の空洞構造体Pの内周面をライニングするために、本発明を適用した例を挙げたが、円形状や馬蹄形状の空洞構造体の内周面をライニングするために、本発明を適用することも可能である。また、本発明は、既設管に限らず、新設管のライニングにも適用できることはいうまでもない。   Furthermore, in the above embodiment, in order to line the inner peripheral surface of the rectangular cavity structure P, an example in which the present invention is applied has been described. However, the inner peripheral surface of a circular or horseshoe-shaped cavity structure is used. It is also possible to apply the invention for lining. Needless to say, the present invention is applicable not only to existing pipes but also to linings of new pipes.

1 径変化部用ライニング材
1a 第1嵌合部
1d 径変化部用ライニング材の長手方向の両端部
1L 径変化部用ライニング材の一側縁
1R 径変化部用ライニング材の他側縁
2 径変化部用筒状錐体
2L 径変化部用筒状錐体の大径部
2R 径変化部用筒状錐体の小径部
3 径一定部用接合材
3a 第4嵌合部
3d 径一定部用接合材の長手方向の両端部
4 径変化部用接合材
4a 第2嵌合部
4d 曲がり部用ライニング材の長手方向の両端部
6 径一定部用ライニング材
6a 第3嵌合部
6d 径一定部用ライニング材の長手方向の両端部
7 径一定部用筒状体
100 ライニング構造物
P 空洞構造体
Pa、Pb 径一定部
Pc 径変化部
DESCRIPTION OF SYMBOLS 1 Lining material for diameter change parts 1a 1st fitting part 1d Both ends of the longitudinal direction of the lining material for diameter change parts 1L One side edge of the lining material for diameter change parts 1R The other side edge of the lining material for diameter change parts 2 Diameter Cylindrical cone for change portion 2L Large diameter portion of cylindrical cone for diameter change portion 2R Small diameter portion of cylindrical cone for diameter change portion 3 Joint for constant diameter portion 3a Fourth fitting portion 3d For constant diameter portion Both ends in the longitudinal direction of the joining material 4 Joining material for the diameter changing portion 4a Second fitting portion 4d Both ends in the longitudinal direction of the lining material for the bending portion 6 Lining material for the constant diameter portion 6a Third fitting portion 6d Constant diameter portion Both ends of the lining material for the longitudinal direction 7 Cylindrical body for constant diameter part 100 Lining structure P Cavity structure Pa, Pb Constant diameter part Pc Diameter changing part

Claims (9)

内径が拡大または縮小するように変化する径変化部を有した空洞構造体の内周面をライニングするライニング工法であって、
幅方向の一側縁と他側縁の曲率半径を異ならせることで円弧状にカーブした一定幅で帯状の径変化部用ライニング材を、所定の長さに加工した後、厚み方向に湾曲させて長手方向の両端部を結合することにより得られる、径変化部用筒状錐体を、各筒状錐体の大径部同士の径および小径部同士の径を徐々に拡大または縮小するように異ならせて、複数形成する工程と、
前記空洞構造体の前記径変化部の内側に、複数の前記径変化部用筒状錐体を、前記小径部の径が小さい順または前記大径部の径が大きい順に軸方向に並べる工程と、
前記径変化部の内側で隣り合う前記径変化部用筒状錐体間を接合する工程と、を含む、ことを特徴とするライニング工法。
A lining method for lining an inner peripheral surface of a hollow structure having a diameter changing portion that changes so that an inner diameter is enlarged or reduced,
A belt-shaped lining material for a diameter-changing portion having a constant width curved in an arc shape by making the curvature radius of one side edge and the other side edge different from each other in the width direction is processed into a predetermined length and then curved in the thickness direction. The diameter-changing portion cylindrical cones obtained by joining both end portions in the longitudinal direction are gradually enlarged or reduced in diameter between the large diameter portions and the small diameter portions of each cylindrical cone. A process of forming a plurality,
Arranging a plurality of cylindrical cones for the diameter changing portion in the axial direction in order of decreasing diameter of the small diameter portion or increasing diameter of the large diameter portion inside the diameter changing portion of the hollow structure; ,
A step of joining the cylindrical cones for the diameter change portion adjacent to each other inside the diameter change portion.
請求項1に記載のライニング工法において、
一定幅で真直な帯状の径一定部用ライニング材を湾曲させて長手方向の両端部を結合することにより得られる、径一定部用筒状体を複数形成する工程と、
前記空洞構造体の、内径が一定である径一定部の内側に、複数の前記径一定部用筒状体を軸方向に並べる工程と、
前記径一定部の内側で隣り合う前記径一定部用筒状体間を接合する工程と、
前記径変化部と前記径一定部の境界部分の内側で、隣り合う前記径変化部用筒状錐体と前記径一定部用筒状体の間を接合する工程と、をさらに含む、ことを特徴とするライニング工法。
In the lining method according to claim 1,
A step of forming a plurality of cylindrical bodies for constant diameter portions obtained by curving a straight strip-shaped diameter constant portion lining material having a constant width and joining both ends in the longitudinal direction;
A step of arranging a plurality of cylindrical bodies for a constant diameter part in the axial direction inside a constant diameter part having a constant inner diameter of the hollow structure,
Joining the cylindrical bodies for the constant diameter part adjacent to each other inside the constant diameter part;
A step of joining between the adjacent diameter-changing-portion cylindrical cone and the diameter-changing-portion cylindrical body inside the boundary portion between the diameter-changing portion and the diameter-constant portion. Characteristic lining method.
請求項2に記載のライニング工法において、
前記径変化部用筒状錐体の両端部に設けられた第1嵌合部と、帯状の径変化部用接合材の幅方向の両端部に設けられた第2嵌合部とを嵌合する工程と、
前記径変化部用接合材の長手方向の両端部を結合する工程と、をさらに含み、
前記径変化部の内側で隣り合う前記径変化部用筒状錐体間を前記径変化部用接合材により接合する、ことを特徴とするライニング工法。
In the lining method according to claim 2,
A first fitting portion provided at both ends of the cylindrical cone for the diameter changing portion and a second fitting portion provided at both ends in the width direction of the band-shaped diameter changing portion bonding material are fitted. And a process of
And further joining both ends in the longitudinal direction of the bonding material for diameter changing portion,
A lining method characterized by joining the cylindrical cones for the diameter-changing portion adjacent to each other inside the diameter-changing portion with the joint material for the diameter-changing portion.
請求項3に記載のライニング工法において、
前記径一定部用筒状体の両端部に設けられた第3嵌合部と、帯状の径一定部用接合材の幅方向の両端部に設けられた第4嵌合部とを嵌合する工程と、
前記径一定部用接合材の長手方向の両端部を結合する工程と、
前記径変化部用接合材の前記第2嵌合部と、前記径一定部用接合材の前記第4嵌合部とを嵌合する工程と、をさらに含み、
前記径一定部の内側で隣り合う前記径一定部用筒状体間を前記径一定部用接合材により接合し、
前記径変化部と前記径一定部の境界部分の内側で隣り合う前記径変化部用筒状錐体と前記径一定部用筒状体の間を、前記径変化部用接合材と前記径一定部用接合材により接合する、ことを特徴とするライニング工法。
In the lining method according to claim 3,
A third fitting portion provided at both ends of the cylindrical body for the constant diameter portion is fitted to a fourth fitting portion provided at both ends in the width direction of the band-shaped constant diameter portion bonding material. Process,
A step of joining both ends in the longitudinal direction of the bonding material for a constant diameter portion;
A step of fitting the second fitting portion of the bonding material for diameter changing portion and the fourth fitting portion of the bonding material for constant diameter portion;
The cylindrical members for constant diameter part adjacent to each other inside the constant diameter part are joined by the joining material for constant diameter part,
Between the diameter-changing portion cylindrical cone and the diameter-changing portion cylindrical body adjacent to each other inside the boundary portion between the diameter-changing portion and the constant-diameter portion, the diameter-changing portion bonding material and the constant-diameter portion A lining method characterized by joining with a joint material for parts.
内径が拡大または縮小するように変化する径変化部を有した空洞構造体の内周面をライニングするために、該空洞構造体の内側で組み立てられるライニング構造物であって、
幅方向の一側縁と他側縁の曲率半径が異なっていて円弧状にカーブした一定幅で帯状の径変化部用ライニング材を備え
所定の長さに形成された前記径変化部用ライニング材は、厚み方向に湾曲て長手方向の両端部結合されていて当該ライニング材により径変化部用筒状錐体が構成されており
前記径変化部用筒状錐体は、複数設けられていて、各筒状錐体の大径部同士の径および小径部同士の径は、徐々に拡大または縮小するように異なっており
前記空洞構造体の前記径変化部の内側に、複数の前記径変化部用筒状錐体が、前記小径部の径が小さい順または前記大径部の径が大きい順に軸方向に並べられた状態で、隣り合う前記径変化部用筒状錐体間が接合されている、ことを特徴とするライニング構造物。
A lining structure that is assembled inside the hollow structure to line the inner peripheral surface of the hollow structure having a diameter changing portion that changes so that the inner diameter is enlarged or reduced.
Curved in an arc shape have different radii of curvature of the one side edge and the other side edge in the width direction, comprising a strip of diameter change portion for the lining material at a constant width,
Predetermined length formed the diameter change portion for the lining material, be bonded both end portions in the longitudinal direction is curved in the thickness direction, and the diameter change section tubular cone by the lining material is formed And
Cylindrical cone for the diameter change portion is not provided in a plurality, the diameter of the diameter and small-diameter portions of the large diameter portion of the respective tubular cone is different so as to gradually enlarged or reduced,
A plurality of the cylindrical cones for the diameter changing portion are arranged in the axial direction in the order from the small diameter of the small diameter portion or the large diameter of the large diameter portion inside the diameter changing portion of the hollow structure . A lining structure characterized in that the adjacent cylindrical cones for a diameter changing portion are joined in a state.
請求項5に記載のライニング構造物において、
一定幅で真直な帯状の径一定部用ライニング材を備え、
前記径一定部用ライニング材は、湾曲て長手方向の両端部結合されていて当該ライニング材により径一定部用筒状体が構成されており
前記径一定部用筒状体は、複数設けられており、
前記空洞構造体の、内径が一定である径一定部の内側に、複数の前記径一定部用筒状体が軸方向に並べられた状態で、隣り合う前記径一定部用筒状体間が接合されており
前記径変化部と前記径一定部の境界部分の内側で、隣り合う前記径変化部用筒状錐体と前記径一定部用筒状体の間が接合されている、ことを特徴とするライニング構造物。
In the lining structure of Claim 5,
Equipped with a straight strip-shaped lining material with a constant width and a constant diameter ,
The constant diameter portion for the lining material, be bonded both end portions in the longitudinal direction is curved, and a constant diameter portion tubular body by the lining material is formed,
A plurality of the cylindrical bodies for the constant diameter portion are provided,
In the state where the plurality of cylindrical bodies for constant diameter portion are arranged in the axial direction inside the constant diameter portion where the inner diameter is constant, between the adjacent cylindrical bodies for constant diameter portion. They are joined,
The lining characterized in that the inside of the boundary portion between the diameter changing portion and the constant diameter portion is joined between the adjacent cylindrical cone for the diameter changing portion and the cylindrical body for the constant diameter portion. Structure.
請求項6に記載のライニング構造物において、
前記径変化部用筒状錐体の両端部に第1嵌合部が設けられていて、
幅方向の両端部に第2嵌合部が設けられた帯状の径変化部用接合材をさらに備え、
前記径変化部の内側で隣り合う前記径変化部用筒状錐体の前記第1嵌合部と、前記径変化部用接合材の前記各第2嵌合部とがそれぞれ嵌合された状態で、前記径変化部用筒状錐体間が前記径変化部用接合材で接合されており
前記径変化部用接合材の長手方向の両端部が結合されている、ことを特徴とするライニング構造物。
The lining structure according to claim 6,
First fitting portions are provided at both ends of the cylindrical cone for the diameter changing portion,
It further includes a band-shaped bonding material for a diameter changing portion provided with second fitting portions at both ends in the width direction,
A state where the first fitting portion of the diameter change section tubular cone adjacent inside said diameter change portions, and each of the second fitting portion of the diameter change portion for the bonding material is fitted, respectively in, between the diameter change section tubular cone is joined by bonding material for the diameter change portion,
A lining structure characterized in that both ends in the longitudinal direction of the bonding material for diameter-changing portions are joined.
請求項7に記載のライニング構造物において、
前記径一定部用筒状体の両端部に第3嵌合部が設けられていて、
幅方向の両端部に第4嵌合部が設けられた帯状の径一定部用接合材をさらに備え、
前記径一定部の内側で隣り合う前記径一定部用筒状体の前記第3嵌合部と、前記径一定部用接合材の前記第4嵌合部とがそれぞれ嵌合された状態で、前記径一定部用筒状体間が前記径一定部用接合材で接合されており
前記径一定部用接合材の長手方向の両端部結合されており
前記径変化部と前記径一定部の境界部分の内側で隣り合う前記径変化部用筒状錐体と前記径一定部用筒状体のうち、前記径変化部用筒状錐体の一方の前記第1嵌合部が、前記径変化部用接合材の一方の前記第2嵌合部と嵌合され、前記径一定部用筒状体の一方の前記第3嵌合部が、前記径一定部用接合材の一方の前記第4嵌合部と嵌合され、かつ、前記径変化部用接合材の他方の前記第2嵌合部と前記径一定部用接合材の他方の前記第4嵌合部とが嵌合された状態で、前記径変化部用筒状錐体と前記径一定部用筒状体の間が前記径変化部用接合材と前記径一定部用接合材で接合されている、ことを特徴とするライニング構造物。
The lining structure according to claim 7,
Third fitting portions are provided at both ends of the cylindrical body for the constant diameter portion,
It further comprises a band-shaped bonding member for a constant diameter portion provided with a fourth fitting portion at both ends in the width direction,
In a state in which said third engaging portion of the constant diameter portion tubular body adjacent the inside of the constant diameter portion, said fourth fitting portion of the constant diameter portion for bonding material is fitted, respectively, between the constant diameter portion tubular body is joined with the constant diameter portion for bonding material,
Both longitudinal end portions of the constant diameter portion for bonding material is bonded,
One of the cylindrical cones for the diameter changing part among the cylindrical cones for the diameter changing part and the cylindrical bodies for the constant diameter part adjacent to each other inside the boundary part of the diameter changing part and the constant diameter part. The first fitting portion is fitted with one of the second fitting portions of the diameter changing portion bonding material, and one of the third fitting portions of the cylindrical member for the constant diameter portion is the diameter. mated with one of the fourth fitting portion of the fixed portion for bonding material, and the other one of the first of the constant diameter portion for bonding material to the other of the second fitting portion of the diameter change portion for bonding material In a state where the four fitting portions are fitted, the diameter changing portion bonding material and the constant diameter portion bonding material are between the diameter changing portion cylindrical cone and the constant diameter portion cylindrical body. A lining structure characterized by being joined.
空洞構造体の内径が拡大または縮小するように変化する径変化部の内側に、小径部の径が小さい順または大径部の径が大きい順に軸方向に並べられた状態で、前記径変化部の内周面をライニングする筒状錐体を構成するライニング材であって、当該ライニング材は、
一定幅の帯状に形成されているとともに、幅方向の一側縁と他側縁の曲率半径が異なっていて円弧状にカーブした形状を有しており
厚み方向に湾曲して長手方向の両端部が結合された状態で、小径部と大径部を有する前記筒状錐体を構成している、ことを特徴とするライニング材。
Inside the diameter changing portion that changes so that the inner diameter of the hollow structure expands or contracts, the diameter changing portion is arranged in the axial direction in the order of decreasing the diameter of the small diameter portion or increasing the diameter of the large diameter portion. A lining material constituting a cylindrical cone that lines the inner peripheral surface of the lining material,
It is formed in a band shape with a constant width, and has a shape that is curved in an arc shape with different curvature radii on one side edge and the other side edge in the width direction,
In a state in which both ends in the longitudinal direction is curved in the thickness direction is attached, it constitutes the cylindrical cones which have a small diameter portion and the large diameter portion, lining material, characterized in that.
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