JP5065220B2 - Flexible joint and joint structure using the same - Google Patents

Flexible joint and joint structure using the same Download PDF

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JP5065220B2
JP5065220B2 JP2008263848A JP2008263848A JP5065220B2 JP 5065220 B2 JP5065220 B2 JP 5065220B2 JP 2008263848 A JP2008263848 A JP 2008263848A JP 2008263848 A JP2008263848 A JP 2008263848A JP 5065220 B2 JP5065220 B2 JP 5065220B2
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joint
temporary fixing
width direction
flexible
fixed
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横塚泰弘
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Nippon Zenith Pipe Co Ltd
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Description

本発明は、ボックスカルバート、下水道管、U字溝、マンホールなどのプレキャスト製の地中構造物間の隙間を埋める継手に関するもので、その継手を使用した継手構造にも係るものである。   The present invention relates to a joint that fills a gap between precast underground structures such as a box culvert, a sewer pipe, a U-shaped groove, and a manhole, and also relates to a joint structure using the joint.

ボックスカルバートのような管渠、下水道管、U字溝、マンホールなどのプレキャスト製の地中構造物を並べて地中に埋設する場合に、それら構造物間の継ぎ目に、止水のために構造物間の隙間を埋める継手を設けている。
また、現場打ちによる管渠などにおいても、応力集中が予想される箇所にスリットを形成しておき、その部分に継手を設けることが採用されている。
この継手は、地震や地盤沈下などによって構造物の位置がズレたり、屈曲したりなどの変位が生じた部分の止水性の確保や土砂の流入防止を図る必要があり、変位に追随するようにゴムなどの屈曲可能な可撓性の材料によって形成されている。
従来の継手としては、図11に示すようなものが採用されていた。
構造物a・a間の継ぎ目に、隣り合う構造物a・a間に渡すように継手bを、その内周面間に渡すもので、多少の伸びを許容するように、その幅方向中間部を構造物の内側へ張り出すように取付けられている。
When precast underground structures such as box culverts, sewer pipes, U-grooves, and manholes are lined up and buried in the ground, the structure is used to stop water at the seam between the structures. A joint that fills the gap between them is provided.
Moreover, also in the case of a pipe rod made in the field, it is employed to form a slit at a place where stress concentration is expected and to provide a joint at that part.
This joint needs to ensure water-stopping and prevent inflow of earth and sand in the part where the position of the structure is displaced or bent due to earthquake or ground subsidence, etc. It is made of a flexible material such as rubber.
A conventional joint as shown in FIG. 11 has been adopted.
The joint b is passed between the inner peripheral surfaces of the joints between the structures a and a so as to pass between the adjacent structures a and a middle portion in the width direction so as to allow some elongation. Is mounted so as to project to the inside of the structure.

しかしながら、継手bが内側へ大きく張り出すと、構造物aの中を流れる水流Fを妨げ、ゴミなどの滞留の原因となることがあった。
このために、図に示すように内側に段差cを設け、継手bが段差cの高さh分低くなるように取付けるなどの手段が採用されている。
しかしながら、構造物aの肉厚が薄い場合には、この段差cを設けることが出来ないことがあり、その場合は継手bが構造物aの内側に大きく張り出ることとなっていた。
また、段差cを設けることは、ブロックなどの製造コストを上昇させることになっていた。
However, if the joint b protrudes greatly inward, the water flow F flowing through the structure a may be hindered, causing stagnation of dust and the like.
For this purpose, as shown in the figure, means such as providing a step c on the inside and attaching the joint b so as to be lowered by the height h of the step c is adopted.
However, when the thickness of the structure a is thin, the step c may not be provided, and in this case, the joint b has greatly protruded to the inside of the structure a.
Further, providing the step c would increase the manufacturing cost of the block and the like.

このために、特開2001−152796号公報に記載されているような発明が開発されている。
同公報に記載された発明を図12に示す。
隣り合う構造物a・a間に渡した継手bの幅方向中間部を、構造物a外側へ屈曲し、構造物a・aの端面間に位置させるものである。
For this reason, an invention as described in Japanese Patent Application Laid-Open No. 2001-152996 has been developed.
The invention described in the publication is shown in FIG.
The intermediate part in the width direction of the joint b passed between the adjacent structures a and a is bent outward from the structure a and positioned between the end surfaces of the structures a and a.

このような継手bの場合、地盤からの地下水Pによって継手bを押し上げ、継手bを構造物aの内側へ突出させてしまうことがあった。
つまりは、継手bの幅方向中間部を折角構造物外側へ折曲して端面間に収納しておいても、地下水Pによって内側へ押し出され、内部の水流Fを妨げることとがあった。
このために、地下水Pの水圧にある程度耐えるように、継手bとして肉厚のものを使用していたが、以下のような課題を生じていた。
For such joint b, pushing up the joint b by ground water pressure P from the ground, there is the cause by projecting the joint b to the inside of the structure a.
That is, be previously accommodated between the end faces by bending a width direction intermediate portion of the joint b precious to structures outside, pushed inwardly by ground water pressure P, there is a disturbing the interior of the water flow F .
Therefore, as to some extent withstand water pressure of the ground water pressure P, but are taken from the thickness of the joint b, it has occurred the following problems.

<a>肉厚であるために、重く、取付け施工が著しく面倒であった。
<b>材料が多く必要で、継手そのものが高価であり、施工費が高くなっていた。
<c>分厚いゴムなどの材料による継手をスムーズに屈曲・伸縮させるため、継手の表面に溝、切り込み等の細工が必要である。
<d>孕み変形を抑制するために、構造物の間に継手を窮屈に格納しなければならず、その手間が非常に面倒であった。
<e>また段差などを構造物に設けることは、コストアップに繋がっていた。
<a> Since it was thick, it was heavy and installation work was extremely troublesome.
<B> A large amount of material was necessary, the joint itself was expensive, and the construction cost was high.
<C> In order to smoothly bend and stretch the joint made of a material such as a thick rubber, it is necessary to work on the surface of the joint such as a groove or a notch.
<D> In order to suppress the stagnation deformation, the joint must be tightly stored between the structures, which is very troublesome.
<E> Providing a step or the like in the structure leads to an increase in cost.

また他方、特開平10−159161号公報に記載されたような発明も開示されている。
同発明は、屈曲可能な可撓継手の幅方向中間部を折り畳んで、所々点接着して構造体内側面に固定してある。
構造物に変位が生じたとき、構造物の動きによって接着点が剥がれ、その分伸びるというものである。
しかしながら、このような点接着であると、その点が剥がれると、いきなり継手が構造体内に突き出るもので、やはり水流を阻害したり、ゴミを滞らす原因となってしまう。
特開2001−152796号公報 特開平10−159161号公報
On the other hand, an invention as described in JP-A-10-159161 is also disclosed.
In the present invention, the intermediate portion in the width direction of the bendable flexible joint is folded and bonded to the side of the structure in some points.
When a displacement occurs in the structure, the adhesion point peels off due to the movement of the structure, and it is extended accordingly.
However, in the case of such point adhesion, if the point is peeled off, the joint suddenly protrudes into the structure, which also causes the water flow to be hindered or litter to be accumulated.
Japanese Patent Application Laid-Open No. 2001-152796 JP-A-10-159161

発明が解決しようとする課題は、構造物の変位に追随するとともに、地下水圧が作用しても構造物内側に突き出ることがなく、安価で施工が容易な可撓継手とそれを使用した継手構造を提供することである。   The problem to be solved by the invention is to follow the displacement of the structure, and does not protrude inside the structure even if the groundwater pressure acts, and is a flexible joint that is inexpensive and easy to construct, and a joint structure using the flexible joint Is to provide.

本発明にかかる可撓継手は、構造物の変位が想定される箇所に位置する離隔部やスリットに跨るように渡す帯状で、可撓性の継手であって、
継手の幅方向中間部において表面を向き合わせた部分の少なくとも一部を仮止めして仮止め部とし、
仮止め部は、その幅方向に連続若しくは非連続に必要幅仮止めしてあり、
継手の幅方向左右端部を、地中構造物への固定部とするものである。
本発明にかかる他の可撓継手は、
継手の幅方向中間部を折り返し、
折り返した部分のむきあった表面の少なくとも一部を仮止めして仮止め部とするものである。
本発明にかかる他の可撓継手は、
継手の幅方向中間部は、複数回折り返してそれぞれ重ね、
重ね合わせた部分にそれぞれ仮止め部を設けるものである。
本発明にかかる継手構造は、
上記に記載の可撓継手を使用して止水を行う継手構造であって、
帯状の継手の仮止め部は、地中構造物の端面同士の間に位置させ、
幅方向左右端部の固定部は、隣り合う地中構造物の内側面に添わして固定するものである。
The flexible joint according to the present invention is a flexible joint in a band shape that passes over a separation part or a slit located at a place where the displacement of the structure is assumed,
Temporarily fix at least a part of the part facing the surface in the intermediate part in the width direction of the joint as a temporary fixing part,
The temporary fixing portion is temporarily or non-continuously necessary width temporary fixed in the width direction,
The right and left ends of the joint in the width direction are fixed to the underground structure.
Other flexible joints according to the present invention are:
Fold the middle part of the joint in the width direction,
At least a part of the peeled surface is temporarily fixed to form a temporary fixing portion.
Other flexible joints according to the present invention are:
The intermediate part of the joint in the width direction is folded back and overlaps each other,
A temporary fixing portion is provided for each of the overlapped portions.
The joint structure according to the present invention is
A joint structure that uses the flexible joint described above to stop water,
The temporary fixing part of the band-shaped joint is located between the end faces of the underground structure,
The fixing portions at the left and right end portions in the width direction are fixed along the inner side surfaces of adjacent underground structures.

本発明は以上のような構成より成り、以下の効果を得ることが出来る。
<a>可撓継手は、継手の幅方向中間部において表面を向き合わせた部分の少なくとも一部を仮止めして仮止め部として、地盤からの水圧に耐えるようにするため、シートのような薄手の継手であっても、地下水圧に押し上げられても継手が構造物の内側へ飛び出るようなことがなく、地中構造物内を流れる水流を妨げず、ゴミなどの滞留の原因となることがない。
<b>仮止め部は、その幅方向に連続若しくは非連続に必要幅仮止めしてあるため、変位に追随して必要幅の仮止め部分のみが随時に切れたり、剥離するため、依然仮止めされた部分は地下水圧に耐えて飛び出ることがなく、水流を滞らせるようなことがない。
<c>接着材を使用して仮止めした場合、継手が薄手の可撓性の材料であるため、可撓性の材料の接着箇所が両側へ開かれるように引っ張られ、向き合わせて接着した部分の端から切れるように剥がれるため、構造物の変位に追随して少しづつ剥離することになる。
<d>仮止め部の付着力によって地下水圧に耐え得るようにしたため、継手そのものの厚みを薄く出来、重量も軽くなるため、施工が容易となる。
<e>継手が安価となり、施工コストも安価となる。
<f>継手を薄く製造出来、溝切りなどの加工も不要である。
<g>薄手の継手を使用するため、構造物間への格納作業も容易に行える。
The present invention is constituted as described above, and the following effects can be obtained.
<a> A flexible joint is used as a sheet in order to withstand the water pressure from the ground as a temporary fixing part by temporarily fixing at least a part of the part facing the surface in the intermediate part in the width direction of the joint. Even if it is a thin joint, even if it is pushed up to the groundwater pressure, the joint will not jump out of the structure, it will not disturb the water flow flowing in the underground structure, and it will cause accumulation of dust etc. There is no.
<B> Since the temporary fixing part is temporarily or non-continuously required in the width direction, only the temporary fixing part of the required width is cut or peeled off at any time following the displacement. The stopped part will not withstand the groundwater pressure and will not jump out and will not stagnate the water flow.
<C> When temporarily fixed using an adhesive, the joint is a thin flexible material, so the adhesive material is pulled so that the bonding location of the flexible material is opened on both sides, and bonded in a face-to-face relationship Since it peels off so that it may cut from the edge of a part, it will peel off little by little following the displacement of a structure.
<D> Because the adhesive force of the temporary fixing portion can withstand the underground water pressure, the thickness of the joint itself can be reduced and the weight can be reduced, so that the construction is facilitated.
<E> The joint is inexpensive and the construction cost is low.
<F> The joint can be manufactured thinly, and processing such as grooving is unnecessary.
<G> Since a thin joint is used, storage work between structures can be easily performed.

以下、図に示す実施例に基づき、この発明を詳細に説明する。
<1>地中構造物
図において1は、地中構造物であって、実施例ではプレキャストコンクリート製のボックスカルバートを使用している。
地中構造物1を連続して地中に埋設し、その端面2・2同士を向き合わせる。
この隣り合う地中構造物1・1の間に、後に述べる可撓継手3を跨がせて止水する。
Hereinafter, the present invention will be described in detail based on the embodiments shown in the drawings.
<1> Underground structure In the figure, reference numeral 1 denotes an underground structure, and a precast concrete box culvert is used in the embodiment.
The underground structure 1 is continuously buried in the ground, and the end surfaces 2 and 2 face each other.
Between the adjacent underground structures 1 and 1, the flexible joint 3 described later is straddled and water is stopped.

<2>可撓継手
可撓継手3は、屈曲可能な帯状シートである部材であって、薄手のゴムや合成樹脂製のシート、或いはゴム製のシートと合成樹脂製のシートを貼り合わせたものなど、様々な形状のシートが採用できる。
また、ゴムの片面に補強材として織布を貼りつけたものや、二枚のゴムの間に織布を挟み込んだものシートも採用できる。
図1〜図3に示す実施例では、可撓継手3の幅方向中間部は、一部を折り返して重ね合わせ、その重ね合わせた表面の一部或いは全部を仮止めして、仮止め部4とする。
仮止め部4は、継手3の幅方向に連続若しくは非連続に、仮止めされている。
つまりは、幅方向に連続して長く接着したり、複数個の接着スポットを幅方向に並べるなどして、仮止めが一度に切れたり、剥離したりせずに、少しづつ仮止めが切れるようにするものである。
仮止めする手段としては様々な手段が採用でき、接着材による接着、樹脂などを溶融させて接着する溶着、クリップやホック、面ファスナーなどを使用して仮止めする方法、糸などによる縫合などが広く採用できる。
実施例では接着材5による接着を採用した。
接着材5としては、エポキシ樹脂などの合成樹脂製の接着材5など様々な公知の接着材5が使用可能である。
<2> Flexible joint The flexible joint 3 is a member that is a bendable belt-like sheet, and is a thin rubber or synthetic resin sheet, or a laminate of a rubber sheet and a synthetic resin sheet. Various shapes of sheets can be used.
In addition, a sheet in which a woven fabric is attached as a reinforcing material on one side of a rubber, or a sheet in which a woven fabric is sandwiched between two rubbers can be used.
In the embodiment shown in FIGS. 1 to 3, the intermediate portion in the width direction of the flexible joint 3 is partially folded and overlapped, and a part or all of the overlapped surface is temporarily fixed, and the temporary fixing portion 4. And
The temporary fixing part 4 is temporarily fixed continuously or discontinuously in the width direction of the joint 3.
In other words, by temporarily bonding in the width direction for a long time or arranging a plurality of adhesion spots in the width direction, the temporary fixing can be broken little by little without peeling or peeling at once. It is to make.
Various means can be used as a temporary fixing means, such as adhesion by an adhesive, welding by melting a resin or the like, a method of temporarily fixing using a clip, a hook, a hook-and-loop fastener or the like, sewing by a thread, etc. Can be widely adopted.
In the examples, adhesion by the adhesive 5 was adopted.
As the adhesive 5, various known adhesives 5 such as an adhesive 5 made of a synthetic resin such as an epoxy resin can be used.

<3>継手の配置
以上のような可撓継手3の長手方向を、隣り合う構造物1の周方向に伸ばし、前記した仮止め部4を構造物1・1の端面2・2の間に格納する。
可撓継手3の幅方向左右端部の固定部6・6は、構造物1・1の内側面に配置し、ボルト7によって構造物1・1に固定する。
可撓継手3を固定するには、ボルト7の頭部と継手3との間に、継手3の長手方向に連続する長尺の押え目地を配して押えることも採用できる。
以上のようにして、可撓継手3が地中構造物1の周方向に連続して、隣り合う構造物1・1の間に跨ることになる。
継手3の固定部6・6は、接着材によって構造物1・1に固定することも出来るし、ボルト7と接着材を併用して固定することもできる。
<3> Arrangement of Joints The longitudinal direction of the flexible joint 3 as described above is extended in the circumferential direction of the adjacent structures 1, and the temporary fixing portion 4 described above is interposed between the end surfaces 2 and 2 of the structures 1 and 1. Store.
The fixing portions 6 and 6 at the left and right ends in the width direction of the flexible joint 3 are arranged on the inner surface of the structure 1 and 1 and are fixed to the structure 1 and 1 with bolts 7.
In order to fix the flexible joint 3, it is also possible to employ a method in which a long press joint continuous in the longitudinal direction of the joint 3 is arranged between the head of the bolt 7 and the joint 3.
As described above, the flexible joint 3 continues in the circumferential direction of the underground structure 1 and straddles between the adjacent structures 1.
The fixing portions 6 and 6 of the joint 3 can be fixed to the structures 1 and 1 with an adhesive, or can be fixed using a bolt 7 and an adhesive together.

<4>作用
地震などによって地下の地中構造物1が移動や沈下を起こし、隣り合う地中構造物1・1間の間隔が離隔した場合、可撓継手3が隣り合う地中構造物1・1によって、図2の矢印方向へ引っ張られることになる。
このときの引張り力によって、仮止め部4の仮止めが解除、つまりは実施例では接着材5の接着が剥がれ、幅方向に引き伸ばされることになる。(図3)
前記したように、仮止め部4は、継手3の幅方向に連続若しくは非連続に仮止めされているため、地震や地盤沈下によって構造物1に変位が生じたとき、その変位分に応じて少しづつ仮止め部4の接着材5が剥がれ、随時必要分のみ剥離して、他の部分は仮止めが維持される。
従って、仮止めが維持された部分は、地盤側から地下水Pが押し上げても、接着材5によって仮止めが依然折り返されたままであり、地下水Pの水圧によっても構造物1の内側へ押し出されることはない。
以上のように、継手3の仮止め部4の接着材などの付着や拘束力は、地下水圧によっては容易に切れたり剥がれたりしないが、構造物1の変位に対応して切れたり剥がれたりする程度の付着や拘束力であると定義できる。
しかしながら、表面同士の付着は、その端から少しづつ剥がれるため、強力な接着材などであっても、構造物1の変位に追随して剥がれることとなる。
<4> Action When the underground structure 1 underground moves or sinks due to an earthquake or the like and the space between the adjacent underground structures 1 and 1 is separated, the flexible structure 3 is adjacent to the adjacent underground structure 1. -By 1, it will be pulled in the direction of the arrow in FIG. 2.
By the tensile force at this time, the temporary fixing of the temporary fixing portion 4 is released, that is, in the embodiment, the adhesive 5 is peeled off and stretched in the width direction. (Figure 3)
As described above, since the temporary fixing part 4 is temporarily fixed in the width direction of the joint 3 continuously or discontinuously, when displacement occurs in the structure 1 due to an earthquake or ground subsidence, the temporary attachment part 4 corresponds to the displacement. The adhesive 5 of the temporary fixing part 4 is peeled off little by little, and only the necessary amount is peeled off at any time, and the temporary fixing is maintained for the other parts.
Therefore, even if the groundwater P is pushed up from the ground side, the part where the temporary fastening is maintained is still folded back by the adhesive 5 and is pushed out to the inside of the structure 1 by the water pressure of the groundwater P. There is no.
As described above, the adhesion or binding force of the adhesive or the like of the temporary fixing portion 4 of the joint 3 is not easily cut or peeled depending on the underground water pressure, but is cut or peeled in accordance with the displacement of the structure 1. It can be defined as a degree of adhesion or binding force.
However, since adhesion between surfaces peels off little by little from the end, even a strong adhesive or the like will peel off following the displacement of the structure 1.

<5>二枚合わせ
図5に示すのは、二枚のシート9・9によって継手3を形成した場合であって、帯状の二枚のシート9・9の幅方向の一部表面を向き合わせて、仮止めして仮止め部4とした場合である。
向き合わせていない幅方向の他の部分は、固定部6・6として構造物1・1に固定する。
図6に示すのは、二枚のシート9・9の幅方向の一部表面を向き合わせて仮止め部4とし、二枚のシート9・9の仮止め部4側の長手方向側端を、蝶番などのヒンジ10によって連結した例である。
<5> Two-sheet alignment FIG. 5 shows a case where the joint 3 is formed by two sheets 9 and 9, and a part of the surface of the two strip-shaped sheets 9 and 9 is faced to each other. In this case, the temporary fixing portion 4 is temporarily fixed.
Other portions in the width direction that are not facing each other are fixed to the structures 1 and 1 as fixing portions 6 and 6.
FIG. 6 shows that the partial surfaces in the width direction of the two sheets 9 and 9 face each other to form a temporary fixing part 4, and the longitudinal side end of the two sheets 9 and 9 on the temporary fixing part 4 side is shown. This is an example of connection by hinges 10 such as hinges.

<6>他の仮止め
図4に示すのは、他の仮止め手段を示すもので、両面接着テープ8などを介して、折り返して向き合わせた部分を間接的に接着した場合である。
また、間にスポンジなどを介在させ、そのスポンジなどに間接的に向き合わせた部分を接着することも可能である。
<6> Other Temporary Fixing FIG. 4 shows another temporary fixing means in which the folded and faced portions are indirectly bonded via the double-sided adhesive tape 8 or the like.
Further, it is also possible to interpose a sponge or the like between them, and to adhere a portion facing the sponge or the like indirectly.

<7>仮止めのバリエーション
仮止め部4の仮止め部分は、様々なパターンが採用でき、折り返し重ね合わせた部分を連続して接着することも出来るが、図7に示すように、左右端部6・6に近い部分の仮止めを少なくして、その折り返しの折曲部に近くなるほど、仮止めを強固にするよう、間欠的に仮止めした例である。
図8に示すのは、左右固定部6・6に近い部分の仮止めを強固にし、折り返しの折曲部に近くなるほど、仮止めを比較的弱くしたものである。
図9に示すのは、仮止めを継手3の幅方向に連続させ、長手方向には非連続にしたものである。
図10に示すのは、仮止めを継手の幅方向及び長手方向双方に非連続にスポット接着させたものである。
<7> Variations of Temporary Fixation Various patterns can be adopted for the temporary fixing portion of the temporary fixing portion 4, and the folded and overlapped portions can be continuously bonded, but as shown in FIG. This is an example in which temporary fixing is intermittently performed so that the temporary fixing of the portion close to 6.6 is reduced and the temporary fixing becomes stronger as the folded portion becomes closer to the folded portion.
FIG. 8 shows that the temporary fixing of the portion close to the left and right fixing portions 6 and 6 is strengthened, and the temporary fixing is relatively weaker as it is closer to the folded portion.
FIG. 9 shows that the temporary fixing is continuous in the width direction of the joint 3 and is not continuous in the longitudinal direction.
FIG. 10 shows that the temporary fixing is spot-bonded discontinuously in both the width direction and the longitudinal direction of the joint.

<8>変位が想定される箇所
以上の実施例では、プレキャスト製の地中構造物1の繋ぎ目において、ズレなどが生じることを想定した実施例であるが、現場打ちのコンクリート構造物であっても、応力集中が想定される箇所に、変位を生じさせるためのスリットを予め形成することがある。
スリットは、構造物の周方向にぐるりと一周することもあるが、周方向の一部に形成することもある。
このようなスリットにも、本発明にかかる可撓継手3を使用して、スリットにズレが生じたときに、止水、土砂侵入を防ぐために使用可能である。










































<8> Locations where displacement is assumed In the above examples, it is assumed that a gap or the like is generated at the joint of the precast underground structure 1, but this is an on-site concrete structure. However, a slit for causing displacement may be formed in advance at a location where stress concentration is assumed.
The slit may make a round in the circumferential direction of the structure, but may be formed in a part of the circumferential direction.
Such a slit can also be used to prevent water stoppage and soil intrusion when the slit is displaced by using the flexible joint 3 according to the present invention.










































本発明にかかる継手構造の断面図Sectional drawing of the joint structure concerning this invention 継手の拡大断面図Enlarged sectional view of the joint 構造物間が離隔した状態の断面図Cross-sectional view of the state where the structures are separated 継手の他の実施例の断面図Sectional view of another embodiment of the joint 継手の他の実施例の断面図Sectional view of another embodiment of the joint 継手の他の実施例の断面図Sectional view of another embodiment of the joint 継手の仮止めの状態の一実施例の側面図Side view of an embodiment of a joint temporarily fixed 継手の仮止めの状態の他の実施例の側面図Side view of another embodiment of the joint temporarily fixed 継手の仮止めの状態の他の実施例の側面図Side view of another embodiment of the joint temporarily fixed 継手の仮止めの状態の他の実施例の側面図Side view of another embodiment of the joint temporarily fixed 従来の継手構造を示す断面図Sectional view showing conventional joint structure 従来の継手構造を示す断面図Sectional view showing conventional joint structure

符号の説明Explanation of symbols

F:水流
P:地下水圧
1:地中構造物
2:端面
3:可撓継手
4:仮止め部
5:接着材
6:固定部
7:ボルト
8:両面接着テープ
9:シート
10:蝶番
F: Water flow P: Ground water pressure 1: Underground structure 2: End face 3: Flexible joint 4: Temporary fastening part 5: Adhesive material 6: Fixing part 7: Bolt 8: Double-sided adhesive tape 9: Sheet 10: Hinge

Claims (4)

構造物の変位が想定される箇所に位置する離隔部やスリットに跨るように渡す帯状で、可撓性の継手であって、
継手の幅方向中間部において表面を向き合わせた部分の少なくとも一部を仮止めして仮止め部とし、
仮止め部は、その幅方向に連続若しくは非連続に必要幅仮止めしてあり、
継手の幅方向左右端部を、地中構造物への固定部としてなる、
可撓継手。
It is a band-like shape that passes over a separation part or slit located at a place where displacement of the structure is assumed, and is a flexible joint,
Temporarily fix at least a part of the part facing the surface in the intermediate part in the width direction of the joint as a temporary fixing part,
The temporary fixing portion is temporarily or non-continuously necessary width temporary fixed in the width direction,
The left and right ends of the joint in the width direction are used as fixed parts to the underground structure.
Flexible joint.
継手の幅方向中間部を折り返し、
折り返した部分の向き合った表面の少なくとも一部を仮止めして仮止め部としたことを特徴とする
請求項1記載の可撓継手。
Fold the middle part of the joint in the width direction,
The flexible joint according to claim 1, wherein at least a part of the surface of the folded portion facing each other is temporarily fixed to form a temporary fixing portion.
継手の幅方向中間部は、複数回折り返してそれぞれ重ね、
重ね合わせた部分にそれぞれ仮止め部を設けたことを特徴とする、
請求項2に記載の可撓継手。
The intermediate part of the joint in the width direction is folded back and overlaps each other,
It is characterized in that a temporary fixing part is provided in each overlapped part,
The flexible joint according to claim 2.
請求項1乃至3のいずれか1項に記載の可撓継手を使用して止水を行う継手構造であって、
帯状の継手の仮止め部は、地中構造物の端面同士の間に位置させ、
幅方向左右端部の固定部は、隣り合う地中構造物の内側面に添わして固定してなる
継手構造。
A joint structure for performing water stop using the flexible joint according to claim 1,
The temporary fixing part of the band-shaped joint is located between the end faces of the underground structure,
The fixed structure at the left and right ends in the width direction is a joint structure that is fixed along the inner surface of an adjacent underground structure.
JP2008263848A 2008-10-10 2008-10-10 Flexible joint and joint structure using the same Active JP5065220B2 (en)

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JP2013040445A (en) * 2011-08-11 2013-02-28 Tokyo Metropolitan Sewerage Service Corp Earthquake-ready joint seal
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