JP2012067555A - Lining body and lining structure using the same - Google Patents

Lining body and lining structure using the same Download PDF

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JP2012067555A
JP2012067555A JP2010215207A JP2010215207A JP2012067555A JP 2012067555 A JP2012067555 A JP 2012067555A JP 2010215207 A JP2010215207 A JP 2010215207A JP 2010215207 A JP2010215207 A JP 2010215207A JP 2012067555 A JP2012067555 A JP 2012067555A
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lining
axial direction
peripheral surface
inner peripheral
rib
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JP4743725B1 (en
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Atsushi Sato
佐藤　　淳
Hirohisa Tanimuro
裕久 谷室
Hitoshi Miura
仁 三浦
Tomoyuki Yamanouchi
智之 山ノ内
Tokuo Osada
徳生 小佐田
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Osaka Bousui Construction Co Ltd
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Osaka Bousui Construction Co Ltd
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  • Lining And Supports For Tunnels (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a lining body offering high pressure-resistance performance and a lining structure using the same.SOLUTION: A lining body comprises: a cylindrical lining material for lining an inner peripheral surface of a hollow structure; plural ribs which are formed integrally with an outer peripheral surface of the lining material and extend in a circumferential direction in parallel; and plural binders which extend in an axial direction of the lining material and penetrate the plural ribs to bind them together.

Description

本発明は、空洞構造物の内周面のライニングに使用するライニング体、及び、そのライニング体を用いたライニング構造物に関する。   The present invention relates to a lining body used for lining an inner peripheral surface of a cavity structure, and a lining structure using the lining body.

従来、トンネル構築において、セグメントによる一次覆工を施工し、その一次覆工の内側に、防水性、防食性等を付与するための二次覆工を施工している。この二次覆工を施すライニング工法として、一次覆工内に二次覆工を形成し、一次覆工と二次覆工との内外径差に基づく隙間内に裏込めを施すことを行っていた。この二次覆工は、特許文献１に開示されるような、可撓性を有する樹脂材料によって成形され、帯板状の基板と当該基板の片側表面上に設けられるリブとを有する帯状体を、筒状体として形成し軸方向に継ぎ足すことにより形成されてきた。   Conventionally, in tunnel construction, a primary lining by a segment is constructed, and a secondary lining for constructing a waterproof property, an anticorrosive property, etc. is constructed inside the primary lining material. As a lining method to apply this secondary lining, a secondary lining is formed in the primary lining, and backfilling is performed in the gap based on the inner and outer diameter difference between the primary lining and the secondary lining. It was. This secondary lining is formed of a flexible resin material as disclosed in Patent Document 1, and includes a belt-like substrate having a belt-like substrate and a rib provided on one surface of the substrate. It has been formed by forming a cylindrical body and adding it in the axial direction.

特開２０００−３４８９２号公報JP 2000-34892 A

このようなライニング工法は、老朽化した既設管に対して適用することが望まれている。この場合には、老朽化のため外水圧等に対する耐圧性能が低下した既設管の耐圧性能を、ライニング工法により高めることが要求される。そのため、ライニング工法において使用する帯状体には、施工後、既設管が新設時に有していた高い耐圧性能が得られるものが望まれている。なお、新設管に対しても、このような要求はなされるものである。   Such a lining method is desired to be applied to an aging existing pipe. In this case, it is required to improve the pressure resistance of existing pipes whose pressure resistance against external water pressure or the like has deteriorated due to aging by the lining method. Therefore, it is desired that the belt-like body used in the lining method can obtain the high pressure resistance that the existing pipe had when newly installed after construction. In addition, such a request is made also to a newly installed pipe.

本発明は、上記課題を解決するためになされたものであり、新設管及び既設管に適用可能な、高い耐圧性能が得られるライニング体及びそれを用いたライニング構造物を提供することを目的とする。   The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a lining body that can be applied to newly installed pipes and existing pipes and that can obtain high pressure resistance and a lining structure using the same. To do.

本発明に係るライニング体は、空洞構造物の内周面をライニングするための筒状のライニング材と、前記ライニング材の外周面に一体に形成され、周方向に平行に延びる複数のリブと、前記ライニング材の軸方向に延び、前記複数のリブを貫通して結合する複数の結合材と、を備える。   A lining body according to the present invention includes a cylindrical lining material for lining the inner peripheral surface of a hollow structure, and a plurality of ribs integrally formed on the outer peripheral surface of the lining material and extending in parallel to the circumferential direction, A plurality of binding materials extending in the axial direction of the lining material and connecting through the plurality of ribs.

この構成によれば、ライニング材とリブとは一体に形成されており、そのリブと結合材とは、結合材がリブを貫通して一体となっている。このようなライニング体を空洞構造物に配置し裏込めすると、結合材が周囲に流れ込む裏込め材と一体化される。これにより、ライニング体と裏込め材とが一体化されるため、結合材が配置される軸方向に関して、空洞構造物にかかる外水圧等に対する耐圧性能を向上することができる。また、結合材はリブを貫通しているため、結合材がリブから外れ、耐圧性能が低下することを防止することができる。なお、ここでいう「リブを貫通する」とは、複数のリブの全てを貫きとおす構成であればよく、リブに円形状の孔を形成し、軸方向に結合材を差し込む構成でもよく、又、リブの外周端から切欠孔を形成し、リブの外方から径方向に結合材を差し込む構成でもよい。この点については、本明細書を通じて同様の意味である。   According to this configuration, the lining material and the rib are integrally formed, and the rib and the binding material are integrated with each other through the rib. When such a lining body is placed in a hollow structure and backed up, the binding material is integrated with the backfilling material flowing into the surroundings. Thereby, since the lining body and the backfill material are integrated, the pressure resistance performance against the external water pressure or the like applied to the hollow structure can be improved in the axial direction in which the binding material is disposed. Further, since the binding material passes through the rib, it is possible to prevent the binding material from coming off the rib and the pressure resistance performance from being lowered. The term “penetrating the rib” as used herein may be a configuration that penetrates all of the plurality of ribs, may be a configuration in which a circular hole is formed in the rib, and a binder is inserted in the axial direction. Alternatively, a configuration may be adopted in which a notch hole is formed from the outer peripheral end of the rib, and a binder is inserted in the radial direction from the outside of the rib. This point has the same meaning throughout this specification.

上記ライニング体においては、ライニング材の周方向に延び、ライニング材の軸方向の両端部に配置される少なくとも１対の補強材をさらに備え、結合材の端部は、補強材に連結させることができる。   The lining body may further include at least one pair of reinforcing materials extending in the circumferential direction of the lining material and disposed at both ends of the lining material in the axial direction, and the end portions of the binding material may be connected to the reinforcing material. it can.

この構成によれば、補強材が周方向に配置され、結合材の端部が補強材に結合し、ライニング材と補強材とが一体化されているため、空洞構造物の周方向にかかる圧力に対しても耐圧性能を向上することができる。また、結合材の端部が補強材に連結されており、結合材によりリブ及び補強材が一体的に結合されているため、結合材がリブ及び補強材から外れるのを防止することができる。   According to this configuration, the reinforcing material is arranged in the circumferential direction, the end of the binding material is bonded to the reinforcing material, and the lining material and the reinforcing material are integrated, so the pressure applied in the circumferential direction of the hollow structure Also, the pressure resistance performance can be improved. Moreover, since the edge part of the binding material is connected to the reinforcing material, and the rib and the reinforcing material are integrally connected by the binding material, it is possible to prevent the binding material from being detached from the rib and the reinforcing material.

また、上記ライニング体においては、ライニング材は、周方向に延びる少なくとも１つのライニング片を、密閉シールを介して連結することで形成されており、ライニング片の端部同士を固定し、伸縮自在に構成された少なくとも１つの締結部材をさらに備え、締結部材の両端部は、ライニング片の端部間の境界を挟んで配置される一対の結合体にそれぞれ連結させることができる。   In the lining body, the lining material is formed by connecting at least one lining piece extending in the circumferential direction via a hermetic seal, and the ends of the lining pieces are fixed to each other so as to be stretchable. It further includes at least one configured fastening member, and both end portions of the fastening member can be respectively connected to a pair of joined bodies arranged with a boundary between the end portions of the lining piece interposed therebetween.

この構成によれば、空洞構造物の内径、断面形状等により、ライニング体を一体の筒状に形成できない場合には、ライニング片を連結することでライニング体を形成することができる。例えば、空洞構造物の内径が大きくライニング体を一体の筒状に形成すると空洞構造物内に搬送できない場合には、帯状のライニング片を空洞構造内に搬送し、空洞構造内で筒状に形成することができる。また、空洞構造物の断面形状が直線、円弧、角部等の形状が組み合わさっている場合には、各形状に適したライニング片を形成し連結してライニング体を形成することができる。そのため、空洞構造物の内径、断面形状等にとらわれず、任意の空洞構造物に即したライニング体を形成することができる。また、ライニング片の端部同士を密閉シールで封止することで、水等の侵入を確実に防止することができ、高い防水性を得ることができる。   According to this configuration, when the lining body cannot be formed into an integral cylindrical shape due to the inner diameter, cross-sectional shape, etc. of the hollow structure, the lining body can be formed by connecting the lining pieces. For example, if the hollow structure has a large inner diameter and the lining body cannot be transported into the hollow structure when it is formed into an integral tubular shape, the belt-shaped lining pieces are transported into the hollow structure and formed into a cylindrical shape within the hollow structure. can do. Further, when the cross-sectional shape of the hollow structure is a combination of shapes such as straight lines, arcs, and corners, lining pieces suitable for each shape can be formed and connected to form a lining body. Therefore, it is possible to form a lining body conforming to an arbitrary hollow structure without being restricted by the inner diameter, the cross-sectional shape, etc. of the hollow structure. In addition, by sealing the ends of the lining pieces with a hermetic seal, the entry of water or the like can be reliably prevented, and high waterproofness can be obtained.

また、本発明に係るライニング構造物は、軸方向に隣接して配置される上述した複数のライニング体と、隣接する前記ライニング体を接合する接合体と、を備え、前記接合体は、隣接する前記ライニング体を接合し、前記ライニング体の内周面から径方向外方に突出するように撓む撓み領域を有する本体部と、前記本体部に取り付けられ、前記ライニング体の内周面側から前記撓み領域を覆うカバーと、を備える。   Moreover, the lining structure which concerns on this invention is equipped with the several lining body mentioned above arrange | positioned adjacent to an axial direction, and the conjugate | zygote which joins the said adjacent lining body, The said conjugate | zygote adjoins. The lining body is joined, and a main body portion having a bending region that is bent so as to protrude radially outward from the inner peripheral surface of the lining body; and attached to the main body portion, from the inner peripheral surface side of the lining body And a cover that covers the bending region.

この構成によれば、空洞構造物の段差及び屈曲等により隣接するライニング体の間隔が均一でない場合でも、接合体の本体部の撓み領域が、隣接するライニング体の間隔に応じて伸縮し、空洞構造物の段差及び屈曲等を吸収することができる。そのため、空洞構造物の形状に応じて任意のライニング構造物を施工することが可能となる。加えて、本体部にはライニング体の内周面からカバーが取り付けられ、本体部の撓み領域を覆っている。これにより、本体部の撓み領域が有するライニング体の内周面から径方向外方への凹みが無くなり、ライニング構造物内の流体の流れを阻害すること及びその凹みにゴミが溜まることを防止することができる。   According to this configuration, even when the interval between adjacent lining bodies is not uniform due to a step or bending of the cavity structure, the bending region of the main body portion of the joined body expands and contracts according to the interval between adjacent lining bodies, and the cavity Steps and bends of the structure can be absorbed. Therefore, it becomes possible to construct an arbitrary lining structure according to the shape of the hollow structure. In addition, a cover is attached to the main body portion from the inner peripheral surface of the lining body, and covers the bending region of the main body portion. As a result, there is no dent in the radially outward direction from the inner circumferential surface of the lining body in the bending region of the main body, and the flow of fluid in the lining structure is obstructed and dust is prevented from accumulating in the dent. be able to.

本発明に係るライニング体及びそれを用いたライニング構造物によれば、高い耐圧性能を得ることができる。   According to the lining body and the lining structure using the same according to the present invention, high pressure resistance can be obtained.

本発明に係るライニング構造物の一実施形態を空洞構造物内に配置した状態を示す縦断面図である。It is a longitudinal section showing the state where one embodiment of the lining structure concerning the present invention was arranged in the hollow structure. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 本発明に係るライニング体の一実施形態を示す軸方向断面図である。It is an axial direction sectional view showing one embodiment of a lining body concerning the present invention. 図３のライニング体の角部の拡大斜視図である。It is an expansion perspective view of the corner | angular part of the lining body of FIG. 図３のライニング体のリブを正面側から見た図である。It is the figure which looked at the rib of the lining body of FIG. 3 from the front side. 図３のライニング体の連結部を側面側から見た図である。It is the figure which looked at the connection part of the lining body of FIG. 3 from the side surface side. 本発明に係る接合体の一実施形態を示す軸方向断面図である。It is an axial direction sectional view showing one embodiment of a joined object concerning the present invention. 図３のライニング体に図７の接合体を嵌め合わせた状態を示す軸方向断面図である。FIG. 8 is an axial sectional view showing a state in which the joined body of FIG. 7 is fitted to the lining body of FIG. 3. 図８のライニング体の間隔が広がった状態を示す軸方向断面図である。It is an axial sectional view showing a state in which the interval between the lining bodies of FIG. 8 is widened. 本発明に係るライニング構造物の一実施形態の覆工方法を示す説明図である。It is explanatory drawing which shows the lining method of one Embodiment of the lining structure which concerns on this invention. 本発明に係るライニング体の他の実施形態を示す軸方向断面図である。It is an axial sectional view showing other embodiments of the lining body concerning the present invention. 本発明に係るライニング体のリブの他の実施形態を正面側から見た図である。It is the figure which looked at other embodiment of the rib of the lining body which concerns on this invention from the front side.

以下、本発明に係るライニング構造物の一実施形態について添付図面を参照して説明する。図１は、ライニング構造物を空洞構造物内に配置した状態を示す縦断面図である。また、図２は、図１のＡ−Ａ断面図である。なお、ここでいう「空洞構造物」とは、新設及び既設を問わず、又、管路の断面形状が円形及び非円形を問わず、トンネル等の内空断面を有する構造物全般をいう。この点については、本明細書を通じて同様の意味である。   Hereinafter, an embodiment of a lining structure according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view showing a state in which a lining structure is disposed in a hollow structure. FIG. 2 is a cross-sectional view taken along the line AA in FIG. The “cavity structure” as used herein refers to all structures having an internal cross section such as a tunnel, regardless of whether the pipe has a circular or non-circular cross section. This point has the same meaning throughout this specification.

図１に示すように、ライニング構造物１は、ライニング体１０と接合体２０とからなる。図２に示すように、ライニング体１０は、空洞構造物２の断面形状に適した筒状に形成されており、空洞構造物２内で軸方向に複数配置されている。各ライニング体１０の間には、隣接するライニング体を接合するための接合体２０が取り付けられている。   As shown in FIG. 1, the lining structure 1 includes a lining body 10 and a joined body 20. As shown in FIG. 2, the lining body 10 is formed in a cylindrical shape suitable for the cross-sectional shape of the hollow structure 2, and a plurality of lining bodies 10 are arranged in the axial direction in the hollow structure 2. A joined body 20 for joining adjacent lining bodies is attached between the lining bodies 10.

次に、ライニング体１０について、図３から図５を参照して説明する。図３は、ライニング体の軸方向断面図、図４は、ライニング体の角部の拡大斜視図、図５は、ライニング体のリブを正面側から見た図である。図３に示すように、ライニング体１０は、ライニング材１１、リブ１２、補強材１３及び結合材１４から形成される。ライニング材１１及びリブ１２は樹脂製であり、補強材１３及び結合材１４は金属製である。   Next, the lining body 10 will be described with reference to FIGS. 3 to 5. 3 is an axial sectional view of the lining body, FIG. 4 is an enlarged perspective view of a corner portion of the lining body, and FIG. 5 is a view of the ribs of the lining body as viewed from the front side. As shown in FIG. 3, the lining body 10 is formed of a lining material 11, a rib 12, a reinforcing material 13, and a bonding material 14. The lining material 11 and the rib 12 are made of resin, and the reinforcing material 13 and the bonding material 14 are made of metal.

ライニング材１１は、帯板状の一枚のライニング片１１１により形成されており、このライニング片１１１を１周分巻いて端部同士を後述する締結部材１５を用いて連結し筒状としている。これにより、ライニング体１０の内周面を形成している。図３に示されるように、ライニング片１１１は、断面コ字状に形成されており、軸方向の両端に、突条部１１３が形成されている。この突条部１１３は、ライニング体１０の内周面から径方向外方に突出しており、その軸方向外側に、接合体２０を取り付けるための接合体取付溝１１２が形成されている。接合体取付溝１１２は、ライニング体１０の内周面側に凹状の開口部１１２ａが形成されており、この開口部１１２ａに接合体２０が嵌め込まれる。また、ライニング材１１の外周面には、ライニング材１１と一体に、複数のリブ１２が形成されている。複数のリブ１２は、突条部１１３の間に均等に配置されている。このリブ１２は、ライニング材１１の内周面から径方向外方に突出し、周方向に延びている。本実施形態では、５本のリブ１２が、軸方向に沿って平行に延びている。また、図４に示すように、ライニング体１０の角部に当たるリブ１２には切欠部１２１が形成されており、切欠部１２１が周方向に広がることで、角部の湾曲が形成されている。   The lining material 11 is formed of a single strip-shaped lining piece 111, and the lining piece 111 is wound by one turn, and ends thereof are connected using a fastening member 15 described later to form a cylindrical shape. Thereby, the inner peripheral surface of the lining body 10 is formed. As shown in FIG. 3, the lining piece 111 is formed in a U-shaped cross section, and ridges 113 are formed at both ends in the axial direction. The protrusion 113 protrudes radially outward from the inner peripheral surface of the lining body 10, and a joined body mounting groove 112 for mounting the joined body 20 is formed on the outer side in the axial direction. In the joined body mounting groove 112, a concave opening 112a is formed on the inner peripheral surface side of the lining body 10, and the joined body 20 is fitted into the opening 112a. In addition, a plurality of ribs 12 are formed integrally with the lining material 11 on the outer peripheral surface of the lining material 11. The plurality of ribs 12 are evenly arranged between the protrusions 113. The rib 12 protrudes radially outward from the inner peripheral surface of the lining material 11 and extends in the circumferential direction. In the present embodiment, the five ribs 12 extend in parallel along the axial direction. Moreover, as shown in FIG. 4, the notch part 121 is formed in the rib 12 which hits the corner | angular part of the lining body 10, and the curvature of the corner | angular part is formed because the notch part 121 spreads in the circumferential direction.

補強材１３は、図３に示すように、ライニング材１１の突条部１１３の軸方向内側に、突条部１１３に沿って周方向に延びて配置されている。断面は３辺を有するコ字状に形成されており、そのうちの２辺がライニング材１１及び突条部１１３に接し、他の１辺がライニング材１１の径方向外方に位置するように配置されている。この径方向外方に位置する１辺が、後述する覆工方法により充填された裏込め材３０と一体となり、ライニング構造物１の耐圧性能を高める。また、本実施形態のように、空洞構造物２の断面形状が曲率半径の小さい角部を有する場合には、図２及び図４に示すように、補強材１３は、ライニング体１０の側面部１３１と角部１３２を別部材として、各々の形状に即して形成し、それらを組み合わせて配置される。このとき角部１３２は、曲率半径の小さい湾曲に対応させるため、断面形状を板状に形成されている。   As shown in FIG. 3, the reinforcing member 13 is disposed so as to extend in the circumferential direction along the protruding portion 113 inside the protruding portion 113 of the lining material 11. The cross section is formed in a U-shape having three sides, two of which are in contact with the lining material 11 and the ridge 113, and the other side is positioned radially outward of the lining material 11. Has been. One side located on the outer side in the radial direction is integrated with the backfilling material 30 filled by a lining method described later, and the pressure resistance performance of the lining structure 1 is enhanced. Moreover, when the cross-sectional shape of the cavity structure 2 has a corner portion with a small radius of curvature as in the present embodiment, the reinforcing member 13 is a side surface portion of the lining body 10 as shown in FIGS. 131 and the corner 132 are formed as separate members according to each shape, and they are arranged in combination. At this time, the corner portion 132 is formed in a plate shape in cross section so as to correspond to a curve with a small curvature radius.

結合材１４は、図３に示すように、棒状の結合材本体１４１、ボルト１４２及びナット１４３から形成されている。図５に示すように、リブ１２及び補強材１３には、軸方向に一直線となるように貫通孔１２２が形成されており、その貫通孔１２２を通して結合材１４が取り付けられる。結合材本体１４１は、軸方向両端部に配置される補強材１３の間に収まる長さに形成されており、リブ１２の貫通孔１２２を通して、補強材１３の間に配置される。ボルト１４２は、軸方向両端部の補強材１３の軸方向間より長く形成されており、一端の補強材１３ａの軸方向外側から結合材本体１４１に差し込む。このとき、ボルト１４２は、軸方向両端部の補強材１３の軸方向間より長いため、他端の補強材１３ｂの軸方向外側に突出する。そのボルト１４２の突出部にナット１４３を嵌め込み、ボルト１４２とナット１４３とで補強材１３及びリブ１２を一体的に結合する。   As shown in FIG. 3, the bonding material 14 is formed of a rod-shaped bonding material main body 141, a bolt 142, and a nut 143. As shown in FIG. 5, a through hole 122 is formed in the rib 12 and the reinforcing material 13 so as to be straight in the axial direction, and the bonding material 14 is attached through the through hole 122. The binding material main body 141 is formed to have a length that fits between the reinforcing members 13 disposed at both ends in the axial direction, and is disposed between the reinforcing members 13 through the through holes 122 of the ribs 12. The bolt 142 is formed longer than the axial direction of the reinforcing material 13 at both ends in the axial direction, and is inserted into the binding material main body 141 from the outside in the axial direction of the reinforcing material 13a at one end. At this time, since the bolt 142 is longer than the axial direction of the reinforcing material 13 at both ends in the axial direction, the bolt 142 protrudes outward in the axial direction of the reinforcing material 13b at the other end. A nut 143 is fitted into the projecting portion of the bolt 142, and the reinforcing member 13 and the rib 12 are integrally coupled by the bolt 142 and the nut 143.

次に、締結部材１５について、図６も参照して説明する。図６は、ライニング体１０の連結部を側面側から見た図である。締結部材１５は、ライニング片１１１の端部同士１１１ａ，１１１ｂを連結するために用いられる。締結部材１５には、例えば、ターンバックルを使用し、連結部を挟んで近接する結合材１４ａ，１４ｂにターンバックルの両端を引っ掛け締め上げることで連結する。ターンバックルは、伸縮自在に構成されており、これを縮めることで締め上げることができる。これにより、締結部材１５は、結合材１４ａ，１４ｂと一体化されるため、連結部においても高い耐圧性能を得ることができる。また、隣接するリブ１２同士の間と、近接する結合材１４ａ，１４ｂの間とに嵌まり込む補強板１６を挟み込むことができる。これにより、補強板１６が連結部を補強し、耐圧性能をさらに高めることができる。さらに、ライニング片１１１の端部同士１１１ａ，１１１ｂの間に、密閉シール１７を挟むことができる。この密閉シール１７には、例えば、ゴム等のパッキンを使用することができる。これにより、連結部の密閉性を高め、防水性を向上させることができる。   Next, the fastening member 15 will be described with reference to FIG. FIG. 6 is a view of the connecting portion of the lining body 10 as viewed from the side. The fastening member 15 is used for connecting the ends 111a and 111b of the lining piece 111 to each other. The fastening member 15 is connected by, for example, using a turnbuckle and hooking and fastening both ends of the turnbuckle to the adjacent binding materials 14a and 14b with the connecting portion interposed therebetween. The turnbuckle is configured to be stretchable and can be tightened by shrinking it. Thereby, since the fastening member 15 is integrated with the binding materials 14a and 14b, a high pressure resistance can be obtained even in the connecting portion. Further, it is possible to sandwich the reinforcing plate 16 that fits between the adjacent ribs 12 and between the adjacent binders 14a and 14b. Thereby, the reinforcement board 16 reinforces a connection part and can further improve pressure | voltage resistant performance. Furthermore, the hermetic seal 17 can be sandwiched between the ends 111a and 111b of the lining piece 111. For the hermetic seal 17, for example, packing such as rubber can be used. Thereby, the sealing property of a connection part can be improved and waterproofness can be improved.

次に、接合体について、図７を参照して説明する。図７は、接合体２０の軸方向断面図である。接合体２０は、樹脂性であり、本体部２１とカバー２２とから形成されている。本体部２１は、ライニング体１０の内周面から径方向外方に撓む撓み領域２１１と、撓み領域２１１の軸方向外方に位置する平坦領域２１２とを有している。そして、平坦領域２１２に、隣接するライニング体１０を接合するための接合体取付突起２１３が形成されており、撓み領域２１１に、カバー２２を取り付けるためのカバー取付突起２１４が形成されている。カバー２２は、本体部２１に取り付けた際に、ライニング体１０の内周面側が平坦になるように形成されており、撓み領域２１１に形成されるカバー取付突起２１４が嵌まり込むためのカバー取付溝２２１を有している。これにより、本体部２１の撓み領域２１１を、ライニング体１０の内周面側から覆うことで、内周面側に大きな凹みがなくなり、本体部２１の撓み領域２１１でライニング体１０内の流体の流れを阻害すること及びその凹みにゴミが溜まることを防止することができる。   Next, the joined body will be described with reference to FIG. FIG. 7 is an axial sectional view of the joined body 20. The joined body 20 is resinous and is formed of a main body 21 and a cover 22. The main body 21 has a bending region 211 that is bent radially outward from the inner peripheral surface of the lining body 10 and a flat region 212 that is located on the axially outer side of the bending region 211. A joined body attaching projection 213 for joining adjacent lining bodies 10 is formed in the flat region 212, and a cover attaching projection 214 for attaching the cover 22 is formed in the bending region 211. The cover 22 is formed so that the inner peripheral surface side of the lining body 10 is flat when the cover 22 is attached to the main body portion 21, and the cover attachment projection 214 for fitting the cover attachment protrusion 214 formed in the bending region 211 is fitted. A groove 221 is provided. Thereby, by covering the bending region 211 of the main body 21 from the inner peripheral surface side of the lining body 10, there is no large dent on the inner peripheral surface side, and the fluid in the lining body 10 is removed in the bending region 211 of the main body portion 21. It is possible to prevent the flow from being hindered and the accumulation of dust in the recess.

次に、接合体２０が隣接するライニング体１０の間隔を調節する動作について、図８及び図９を用いて説明する。図８は、上記のように形成されたライニング体１０と接合体２０とを嵌め合わせた状態を示す軸方向断面図、図９は、隣接するライニング体１０の間隔が広がった状態を示す軸方向断面図である。ここでは、空洞構造物２内において、軸方向に２個のライニング体１０が配置された状態を例にとって説明する。先に配置されたライニング体を第１ライニング体１０ａ、後に配置されるライニング体を第２ライニング体１０ｂとする。   Next, the operation of adjusting the interval between the lining bodies 10 adjacent to the joined body 20 will be described with reference to FIGS. 8 and 9. FIG. 8 is an axial sectional view showing a state in which the lining body 10 and the joined body 20 formed as described above are fitted together, and FIG. 9 is an axial direction showing a state in which the interval between adjacent lining bodies 10 is widened. It is sectional drawing. Here, a case where two lining bodies 10 are arranged in the axial direction in the hollow structure 2 will be described as an example. The lining body disposed first is referred to as a first lining body 10a, and the lining body disposed later is referred to as a second lining body 10b.

図８に示すように、第１ライニング体１０ａと第２ライニング体１０ｂとの間に接合体２０が取り付けられる。第１ライニング体１０ａの接合体取付溝１１２ａと接合体２０の第１ライニング体１０ａ側の接合体取付突起２１３ａとが嵌め合わされ、第２ライニング体１０ｂの接合体取付溝１１２ｂと接合体２０の第２ライニング体１０ｂ側の接合体取付突起２１３ｂとが嵌め合わされて取り付けられる。このように取り付けられる接合体２０は、空洞構造物２に段差及び屈曲等が生じている場所では、図９に示すように、本体部２１の撓み領域２１１が伸びることができる。これにより、ライニング構造物１は、空洞構造物２の段差及び屈曲等に追随することができる。また、接合体２０は樹脂材料で形成されているため、周方向の一部に段差等が有る場合には、その部分の接合体２０が伸びることで追随することができる。これにより、１つの接合体２０で種々の形状の空洞構造物２にも対応することができ、現場において、空洞構造物２の形状を確認しながら任意の接合体２０を選択する必要がなくなる。   As shown in FIG. 8, the joined body 20 is attached between the first lining body 10a and the second lining body 10b. The joined body mounting groove 112a of the first lining body 10a and the joined body mounting projection 213a on the first lining body 10a side of the joined body 20 are fitted together, and the joined body mounting groove 112b of the second lining body 10b and the first of the joined body 20 are fitted. The joined body attaching projection 213b on the two lining body 10b side is fitted and attached. As shown in FIG. 9, the joined body 20 attached in this way can extend the bending region 211 of the main body portion 21 at a place where a step or a bend is generated in the hollow structure 2. Thereby, the lining structure 1 can follow the level | step difference, bending, etc. of the cavity structure 2. FIG. In addition, since the joined body 20 is formed of a resin material, when there is a step or the like in a part in the circumferential direction, the joined body 20 in the part can follow. Thereby, the cavity structure 2 of various shapes can be dealt with by one joined body 20, and it is not necessary to select an arbitrary joined body 20 while confirming the shape of the cavity structure 2 in the field.

次に、上記のように構成されるライニング構造物１の空洞構造物２内への覆工方法について、図１０を用いて説明する。図１０は、ライニング構造物の覆工方法を示す説明図である。同図に示すように、まず、ライニング片１１１を立坑２ａから空洞構造物２内に搬入する。搬入後、その場で空洞構造物２の断面形状に対応する断面形状を有する筒状のライニング体１０を形成する。その後、空洞構造物２内の所定の位置に移送され、そこで、先に搬送されている第１ライニング体１０ａと接合体２０によって接合する。ここで、接合体２０は、上記のように種々の形状に対応可能なフレキシブル性を有しているため、空洞構造物２の段差及び屈曲等に追随することができる。そのため、覆工現場には、上記の接合体２０を準備していればよく、空洞構造物２の形状に対応させるために種々の接合体２０を準備する必要はない。これを繰り返し、ライニング体１０を軸方向に連結してライニング構造物１を施工する。その後、ライニング構造物１と空洞構造物２の内面との間の間隙にセメントミルク等の裏込め材３０を充填して裏込めが施される。   Next, a method of lining the lining structure 1 configured as described above into the hollow structure 2 will be described with reference to FIG. FIG. 10 is an explanatory view showing a lining structure lining method. As shown in the figure, first, the lining piece 111 is carried into the hollow structure 2 from the shaft 2a. After carrying in, the cylindrical lining body 10 having a cross-sectional shape corresponding to the cross-sectional shape of the hollow structure 2 is formed on the spot. Then, it transfers to the predetermined position in the cavity structure 2, and joins with the 1st lining body 10a and the joining body 20 which were conveyed previously. Here, since the joined body 20 has flexibility that can cope with various shapes as described above, the joined body 20 can follow the step and the bending of the cavity structure 2. Therefore, it is only necessary to prepare the above-described joined body 20 at the lining site, and it is not necessary to prepare various joined bodies 20 in order to correspond to the shape of the cavity structure 2. This is repeated and the lining structure 1 is constructed by connecting the lining bodies 10 in the axial direction. Thereafter, the gap between the lining structure 1 and the inner surface of the hollow structure 2 is filled with a backfilling material 30 such as cement milk, and backfilling is performed.

以上のように、本実施形態によれば、結合材１４がリブ１２を貫通して軸方向に延びて取り付けられているため、ライニング構造物１は、軸方向の引張力にも強くなり、耐圧性能を向上することができる。また、結合材１４の両端に補強材１３を周方向に延びて取り付けることにより、ライニング構造物１は、周方向の引張力にも強くなり、さらに耐圧性能を向上することができる。さらに、接合体２０に撓み領域２１１を形成しているため、空洞構造物２の段差及び屈曲等に追随することができ、種々の空洞構造物２に対しても容易にライニング構造物１を施工することができる。   As described above, according to the present embodiment, since the binding material 14 extends through the rib 12 and is attached in the axial direction, the lining structure 1 is also resistant to the tensile force in the axial direction and has a pressure resistance. The performance can be improved. Further, by attaching the reinforcing material 13 to both ends of the binding material 14 so as to extend in the circumferential direction, the lining structure 1 becomes strong against the tensile force in the circumferential direction and can further improve the pressure resistance performance. Furthermore, since the bending region 211 is formed in the joined body 20, it is possible to follow the steps and bending of the cavity structure 2, and the lining structure 1 can be easily applied to various cavity structures 2. can do.

以上、本発明の一実施形態について説明したが、本発明はこの実施形態に限定されるものではなく、その趣旨を逸脱しない限りにおいて、種々の変更が可能である。例えば、上記実施形態では、ライニング体１０は、１枚のライニング片１１１を１周分巻いて筒状として形成していたが、予め筒状とすることも可能であるし、又、２枚以上のライニング片を連結させて筒状を形成することも可能である。また、リブの本数を５本としているが、それに限られず、４本以下とすることも可能であるし、６本以上とすることも可能である。   As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this Embodiment, A various change is possible unless it deviates from the meaning. For example, in the above embodiment, the lining body 10 is formed in a cylindrical shape by winding one lining piece 111 for one turn, but it may be formed in a cylindrical shape in advance, or two or more pieces. It is also possible to connect the lining pieces to form a cylindrical shape. In addition, the number of ribs is five, but is not limited thereto, and may be four or less, or may be six or more.

また、上記実施形態では、補強材１３は、接合体取付溝１１２の軸方向内方に取り付けられているが、図１１に示すように、接合体取付溝１１２の軸方向外方に取り付けることも可能である。また、補強材１３の断面形状は、コ字状としているが、それに限らず、例えば、図１１に示すようなＴ字状、逆Ｌ字状とすることも可能である。さらに、必ずしも補強材１３を取り付ける必要はなく、結合材１４を軸方向両端に位置するリブ１２で結合することも可能である。   Moreover, in the said embodiment, although the reinforcing material 13 is attached to the axial direction inner side of the conjugate | zygote attachment groove | channel 112, as shown in FIG. Is possible. In addition, the cross-sectional shape of the reinforcing member 13 is a U-shape, but is not limited thereto, and may be a T-shape or an inverted L-shape as shown in FIG. 11, for example. Furthermore, it is not always necessary to attach the reinforcing material 13, and it is also possible to connect the bonding material 14 with the ribs 12 positioned at both ends in the axial direction.

また、上記実施形態では、ライニング体１０の側面部１３１と角部１３２とで補強材１３を別部材として形成しているが、必ずしも側面部１３１と角部１３２とで分離する必要はなく、側面部１３１と角部１３２とを一体として形成することも可能である。   Moreover, in the said embodiment, although the reinforcement material 13 is formed as a separate member with the side part 131 and the corner | angular part 132 of the lining body 10, it is not necessarily required to isolate | separate with the side part 131 and the corner | angular part 132. It is also possible to form the part 131 and the corner part 132 integrally.

また、上記実施形態では、図５に示すように、リブ１２に円形状の貫通孔１２２が形成されているが、形状は円形状に限らず、結合材１４に対応した形状で、結合材１４を貫通可能に形成されればよい。また、図１２に示すように、リブ１２の外周端からＬ字状の切欠きを形成し、この切欠孔１２３にリブ１２の外周側から径方向に結合材１４を差し込んで貫通させてもてもよい。このように、切欠孔１２３をリブ１２の内部でＬ字状に折り曲げて形成することで、折り曲げた部分が抜け止め部１２３ａとなり、結合材１４が径方向外方へ抜けるのを防止することができる。このような構成とすることで、軸方向に結合材１４を差し込むスペースがない場所でライニング体１０を組み立てる場合であっても、径方向に結合材１４を差し込めるので、容易に組み立てることができる。   Moreover, in the said embodiment, as shown in FIG. 5, although the circular through-hole 122 is formed in the rib 12, the shape is not restricted to a circular shape, It is a shape corresponding to the binding material 14, and the binding material 14 It suffices if it is formed so as to be able to penetrate. Further, as shown in FIG. 12, an L-shaped notch is formed from the outer peripheral end of the rib 12, and the bonding material 14 is inserted into the notch hole 123 from the outer peripheral side of the rib 12 in the radial direction to penetrate therethrough. Also good. In this way, by forming the notch hole 123 by bending it into an L shape inside the rib 12, the bent portion serves as a retaining portion 123a, and the binding material 14 can be prevented from coming out radially outward. it can. By adopting such a configuration, even when the lining body 10 is assembled in a place where there is no space for inserting the binding material 14 in the axial direction, the binding material 14 can be inserted in the radial direction, so that it can be easily assembled. .

また、上記実施形態では、締結部材１５として、ターンバックルを用いているが、これに限定されるものではなく、伸縮自在に構成されており、縮むことでライニング片１１１を締め上げて連結できるものであればよい。   Moreover, in the said embodiment, although the turnbuckle is used as the fastening member 15, it is not limited to this, It is comprised so that it can expand and contract, and the lining piece 111 can be tightened and connected by shrinking | contracting If it is.

また、接合体２０は、空洞構造物２のライニング体１０を取り付ける部分が平坦であり、段差等に追随する必要がない場合には、一般的に使用される形状が固定されている接合体とすることも可能である。   Further, the joined body 20 has a flat portion where the lining body 10 of the hollow structure 2 is attached, and when there is no need to follow a step or the like, It is also possible to do.

また、上記実施形態は、既設管の耐圧性能を高めるためにのみ用いられるものではなく、新設管に対してもより耐圧性能を高めるために用いることが可能である。   Moreover, the said embodiment is not only used for improving the pressure resistance performance of the existing pipe, but can be used for increasing the pressure resistance performance of the new pipe.

１ ライニング構造物
２ 空洞構造物
１０ ライニング体
１１ ライニング材
１２ リブ
１３ 補強材
１４ 結合材
１５ 締結部材
１７ 密閉シール
２０ 接合体
２１ 本体部
２２ カバー
１１１ ライニング片
２１１ 撓み領域 DESCRIPTION OF SYMBOLS 1 Lining structure 2 Hollow structure 10 Lining body 11 Lining material 12 Rib 13 Reinforcement material 14 Binding material 15 Fastening member 17 Sealing seal 20 Joining body 21 Body part 22 Cover 111 Lining piece 211 Deflection area

Claims (4)

空洞構造物の内周面をライニングするための筒状のライニング材と、
前記ライニング材の外周面に一体に形成され、周方向に平行に延びる複数のリブと、
前記ライニング材の軸方向に延び、前記複数のリブを貫通して結合する複数の結合材と、
を備えるライニング体。 A cylindrical lining material for lining the inner peripheral surface of the hollow structure;
A plurality of ribs integrally formed on the outer peripheral surface of the lining material and extending parallel to the circumferential direction;
A plurality of binding materials extending in the axial direction of the lining material and connecting through the plurality of ribs;
Lining body with 前記ライニング材の周方向に延び、前記ライニング材の軸方向の両端部に配置される少なくとも１対の補強材をさらに備え、
前記結合材の端部は、前記補強材に連結されている、請求項１に記載のライニング体。 Further comprising at least one pair of reinforcing members extending in a circumferential direction of the lining material and disposed at both ends in the axial direction of the lining material;
The lining body according to claim 1, wherein an end portion of the binding material is connected to the reinforcing material. 前記ライニング材は、周方向に延びる少なくとも１つのライニング片を、密閉シールを介して連結することで形成されており、
前記ライニング片の端部同士を固定し、伸縮自在に構成された少なくとも１つの締結部材をさらに備えており、
前記締結部材の両端部は、前記ライニング片の端部間の境界を挟んで配置される一対の前記結合材にそれぞれ連結されている、請求項１又は２に記載のライニング体。 The lining material is formed by connecting at least one lining piece extending in the circumferential direction via a hermetic seal,
The ends of the lining pieces are fixed to each other, and further provided with at least one fastening member configured to be extendable and contractible,
3. The lining body according to claim 1, wherein both ends of the fastening member are respectively connected to a pair of the binding members arranged across a boundary between the ends of the lining pieces. 軸方向に隣接して配置される請求項１から３のいずれかに記載の複数のライニング体と、
隣接する前記ライニング体間を接合する接合体と、
を備え、
前記接合体は、
隣接する前記ライニング体を接合し、前記ライニング体の内周面から径方向外方に突出するように撓む撓み領域を有する本体部と、
前記本体部に取り付けられ、前記ライニングの内周面側から前記撓み領域を覆うカバーと、
を備えるライニング構造物。 A plurality of lining bodies according to any one of claims 1 to 3 disposed adjacent to each other in the axial direction;
A joined body for joining the adjacent lining bodies;
With
The joined body is
A main body having a bending region that joins adjacent lining bodies and bends so as to protrude radially outward from an inner peripheral surface of the lining body;
A cover that is attached to the main body and covers the bending region from the inner peripheral surface side of the lining;
Lining structure comprising
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