JP2006328933A - Segment connecting structure - Google Patents

Segment connecting structure Download PDF

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JP2006328933A
JP2006328933A JP2005320838A JP2005320838A JP2006328933A JP 2006328933 A JP2006328933 A JP 2006328933A JP 2005320838 A JP2005320838 A JP 2005320838A JP 2005320838 A JP2005320838 A JP 2005320838A JP 2006328933 A JP2006328933 A JP 2006328933A
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joint member
segment
joint
rectangular
hinge fixing
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JP4634911B2 (en
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Hiroaki Nakayama
裕章 中山
Munehiro Ishida
宗弘 石田
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Nippon Steel Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a segment connecting structure capable of securing flatness of a segment surface, without requiring excessive construction cost and labor, while having high rigidity and high yield strength of the same degree as a segment body. <P>SOLUTION: This segment connecting structure in a structure is constructed by joining a plurality of segments in the peripheral direction and the shaft direction; and is characterized by connecting the adjacent segments 8a by a hinge fixation, by inserting a hinge fixing joint member 2 into square cylindrical joint members 4 aligned in the shaft direction, by arranging one or a plurality of square cylindrical joint members 4 by mutually dislocating a position in the shaft direction so that one square cylindrical joint member 4 is stored between the respective joint members without interfering with the other square cylindrical joint member 4, by fixing the square cylindrical joint members 4 along both end parts in the peripheral direction of the segment body 8. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、下水道、鉄道、地下河川等のトンネル覆工用セグメントや、ボックスカルバートなどを構築するセグメントの連結構造に関するものである。   The present invention relates to a connecting structure of segments for constructing a tunnel lining segment such as a sewer, a railway, an underground river, or a box culvert.

下水道、鉄道、地下河川等のトンネルをシールド工法によって建設する場合、円弧状のセグメントを多数連結することによりこれを構築する。このようなトンネル覆工に使用されるセグメントや、ボックスカルバート等に使用されるセグメントには、鋼製セグメント、鋼−コンクリートの合成セグメント、コンクリートセグメント等が適用される。これらのセグメントには継手部が設けられている。この継手部は、一般にセグメントのコンクリート中にアンカー鉄筋を介して固定されるものであり、この継手部を介して多数のセグメントを周方向と軸方向に連結してトンネルやボックスカルバートが構築されることになる。従ってこの継手部は、セグメントを用いた施工を行う上で特に重要な役割を果たすものであり、従来において数多くの提案がされている。   When constructing tunnels such as sewers, railways, underground rivers, etc. by shield construction, they are constructed by connecting a number of arc segments. Steel segments, steel-concrete composite segments, concrete segments, and the like are applied to the segments used for such tunnel lining and the segments used for box culverts. These segments are provided with joints. This joint is generally fixed to the concrete of the segment via an anchor reinforcing bar, and a tunnel or a box culvert is constructed by connecting a number of segments in the circumferential direction and the axial direction via this joint. It will be. Therefore, this joint part plays an especially important role in performing construction using segments, and many proposals have been made in the past.

従来提案されている継手構造も改良の主眼点は種々異なっている。例えば、（１）継手部の構造を簡潔にすることを主な改良点とするもの、（２）継手部の止水性を向上することを主な改良点とするもの、（３）継手部の連結操作を容易にすることを主な改良点とするもの、（４）継手部の強度をセグメント本体と同程度に向上することを主な改良点とするもの、（５）前記の複数の点を同時に改良することを主な改良点とするもの等がある。また、この改良技術も、鋼製セグメント、鋼−コンクリートの合成セグメント、コンクリートセグメントによっておのずから構造が相異している。   Conventionally proposed joint structures also have various improvements. For example, (1) the main improvement is to simplify the structure of the joint, (2) the main improvement is to improve the water stoppage of the joint, (3) the joint The main improvement is to facilitate the connecting operation, (4) the main improvement is to improve the strength of the joint portion to the same extent as the segment body, and (5) the plurality of points described above. The main improvement is to improve simultaneously. In addition, this improved technique is naturally different in structure depending on the steel segment, the steel-concrete composite segment, and the concrete segment.

従来、この種のセグメント連結構造に関しては、特許文献１と特許文献２が提案されている。
特許文献１は、大断面、大深度、地下河川等大きな曲げモーメントや引張力が作用する場合に有効な合成セグメントの継手に関するものであり、継手部がセグメント本体と同等の強度および剛性を有する構造が開示されている。そして、高剛性、高耐力のセグメント継手を実現する方法として、セグメントの内空側鋼板の側縁に周方向に隣り合うセグメント継手を跨ぐように内側が開いた箱状の補強部材を配置して、前記の内空側鋼板にボルト接合する構成が開示されている。 Conventionally, Patent Document 1 and Patent Document 2 have been proposed for this type of segment connection structure.
Patent Document 1 relates to a composite segment joint that is effective when a large bending moment or tensile force such as a large cross section, a large depth, or an underground river is applied, and the joint portion has the same strength and rigidity as the segment body. Is disclosed. And as a method of realizing a high-strength, high-strength segment joint, a box-shaped reinforcing member whose inner side is opened is arranged on the side edge of the inner steel plate of the segment so as to straddle the segment joint adjacent in the circumferential direction. The structure which bolt-joins to the said inner side steel plate is disclosed.

特許文献２には、コンクリートセグメントにおいて、セグメント本体及び継手部ともに強度と剛性のアップを図るための継手構造として、セグメント本体の円周方向の両端に断面略リップ溝状の連結溝部を設け、円周方向に隣り合うセグメントの連結溝部に跨って接合キーをセグメント面外方向（トンネル軸方向）から挿入するセグメントの連結構造が開示されている。このセグメントの連結構造において、セグメント端部に設置された継ぎ手金具につき、鉄骨部材端の側面部に複数本の取付ボルトによって直接ボルト止めし、かかる継ぎ手金具をダクタイル鋳鉄製とすることにより、強度と剛性を向上させることが可能となる。また、セグメントどうしの接合に関しても、かかる接合キーを介して簡単に行うことができるというメリットもある。
特開平７−６２９８８号公報 特開平８−１８４２９６号公報 In Patent Document 2, as a joint structure for increasing the strength and rigidity of both the segment main body and the joint portion in the concrete segment, a connection groove portion having a substantially lip groove cross section is provided at both ends in the circumferential direction of the segment main body. A segment connection structure is disclosed in which a joining key is inserted from the segment surface direction (tunnel axis direction) across the connection groove portions of segments adjacent in the circumferential direction. In this segment connection structure, the joint metal fittings installed at the end of the segment are bolted directly to the side surface of the steel member end with a plurality of mounting bolts, and the joint metal fittings are made of ductile cast iron. The rigidity can be improved. In addition, there is an advantage that the segments can be easily joined through the joining key.
Japanese Patent Laid-Open No. 7-62988 JP-A-8-184296

しかしながら、特許文献１に開示のセグメントの連結構造では、セグメントの内空側鋼板に配置した箱状の補強部材がセグメントの内空側に出っ張り、セグメント内面の平坦性を確保できないという問題がある。また、箱状の補強部材の背面側（つまり地山側）に形成される凹部にグラウトを注入する必要があり、施工コストと手間がかかるという問題があった。   However, the segment connection structure disclosed in Patent Document 1 has a problem in that the box-shaped reinforcing member disposed on the inner space side steel plate of the segment protrudes toward the inner space side of the segment, and the flatness of the inner surface of the segment cannot be ensured. Moreover, it is necessary to inject the grout into the concave portion formed on the back side (that is, the natural mountain side) of the box-shaped reinforcing member, and there is a problem that it takes construction cost and labor.

また、特許文献２に開示されているセグメントの連結構造では、Ｈ形またはＩ形に形成された接合キーによって隣り合うセグメントが連結され、Ｈ形またはＩ形に形成された接合キーの中間部がウエブとしての役割をなしている。このため継手部に曲げ荷重が作用したときに前記ウエブで曲げに抵抗することになり、セグメント継手部における断面２次モーメントを大きくするには極厚のウエブとする必要があり、不経済であった。また、傾斜配置した場合などに接合キーが連結溝部から抜け落ちてしまい、またこれらを機械的に阻止するための機構も存在しない点において改善要請が高まっていた。   Further, in the segment connecting structure disclosed in Patent Document 2, adjacent segments are connected by a joining key formed in an H shape or an I shape, and an intermediate portion of the joining key formed in an H shape or an I shape is provided. It plays a role as a web. For this reason, when a bending load is applied to the joint portion, the web resists bending, and in order to increase the sectional moment at the segment joint portion, it is necessary to use a very thick web, which is uneconomical. It was. Further, there has been a demand for improvement in that the joining key falls off from the connecting groove portion when it is inclined and there is no mechanism for mechanically blocking these.

本発明は、継手部がセグメント本体と同程度の高剛性、高耐力を有することに加えて、継手部を曲げ荷重に抵抗できるようにヒンジ固定にて連結し、しかも、構成が簡潔でかつ継手部がセグメント本体の面外に出張らず、セグメント本体の平坦性を確保できるように構成することで従来の問題点を解決したセグメントの連結構造を提供することを目的とする。   In the present invention, the joint portion is connected to the joint portion by hinge fixing so that the joint portion can resist bending load in addition to having the same high rigidity and high proof stress as the segment body, and the structure is simple and the joint is simple. It is an object of the present invention to provide a segment connecting structure that solves the conventional problems by configuring the section so that the flatness of the segment body can be ensured without traveling outside the surface of the segment body.

本発明者は、上述した課題を解決するとともに、さらに〔１〕セグメントの継手部の強度を向上、〔２〕継手部に作用する曲げ荷重に対する抵抗の向上、〔３〕構造の簡潔化、〔３〕施工性の向上、〔４〕止水性の向上を図るべく、矩形状の中空孔が形成された角筒形継手部材が前記セグメント本体の周方向の両端部に沿って固着するとともに、その角筒形継手部材につき、周方向に隣接するセグメント間で嵌合可能または直列に接続可能となるように互いに軸方向の配置を調整した上でこれを１以上配設し、さらに前記角筒形継手部材を嵌合または直列に接続させることにより互いに接続された中空孔内にヒンジ固定継手部材を挿入したセグメントの連結構造を発明した。
即ち、第１の発明は、複数のセグメントを周方向と軸方向に結合して構築した構造物における前記セグメントの連結構造であって、矩形状の中空孔が形成された角筒形継手部材が前記セグメント本体の周方向の両端部に沿って固着されてなるとともに、その角筒形継手部材は、周方向に隣接するセグメント間で直列に連続可能となるように互いに軸方向の配置が調整されて１以上配設されてなり、前記角筒形継手部材を直列に連続させることにより互いに接続された中空孔内にヒンジ固定継手部材が挿入されてなることを特徴とする。
また、第２の発明は、複数のセグメントを周方向と軸方向に結合して構築した構造物における前記セグメントの連結構造であって、矩形状の中空孔が形成された角筒形継手部材が前記セグメント本体の周方向の両端部に沿って固着されてなるとともに、その角筒形継手部材は、周方向に隣接するセグメント間で嵌合可能となるように互いに軸方向の配置が調整されて１以上配設されてなり、前記角筒形継手部材を嵌合させることにより互いに接続された中空孔内にヒンジ固定継手部材が挿入されてなることを特徴とする。
また、第３の発明は、第１または第２の発明において、前記角筒形継手部材は、前記セグメント本体に対して溶接またはボルトで固着され、又はコンクリートで構成される前記セグメントの端部にアンカー筋で固着されてなることを特徴とする。
また、第４の発明は、第１〜第３の発明において、前記ヒンジ固定継手部材は、Ｈ形断面部材又は箱形断面部材であり、前記接続された中空孔の内面に係合可能とされていることを特徴とする。
また、第５の発明は、第１〜第４の発明において、前記ヒンジ固定継手部材が構造物軸方向に複数のセグメントに跨って、当該セグメントの角筒形継手部材の中空孔内に挿入されていることを特徴とする。
また、第６の発明は、第１〜第５の発明において、ヒンジ固定継手部材が矩形状セグメントリングの隅角部に配置されて、隅角部の連結材とされていることを特徴とする。
また、第７の発明は、第１〜第６の発明において、角筒形継手部材のフランジを兼ねた張り出し部が、セグメント本体のスキンプレートに一体に設けられていることを特徴とする。
また、第８の発明は、第１〜第７の発明において、前記ヒンジ固定継手部材は、何れか一の端部に蓋が取り付けられてなり、前記接続された中空孔内に挿入された場合には、前記蓋の外面と前記セグメント本体の側面との間で平面が形成され、さらに前記蓋は、角筒形継手部材に定着可能とされていることを特徴とする。
また、第９の発明は、第１〜第８の発明において、挿入すべき中空孔の接続位置に対応した前記ヒンジ固定継手部材上の外周面において、又は前記角筒形継手部材の軸方向に沿った外周面において、又は前記セグメント本体端面における嵌合すべき相手側の角筒形継手部材が当接可能な面において、止水材が配設されてなることを特徴とする
また、第１０の発明は、第１〜第９の発明において、前記接続された中空孔内に挿入されたＨ形断面部材としてのヒンジ固定継手部材のフランジとウエブで囲まれる空間部、または箱形断面部材の中空孔内にコンクリートが打設されてなることを特徴とする。
また、第１１の発明は、第１〜第１０の発明において、角筒形継手部材端部に薄板からなる筒を角筒形継手部材内面に固着し角筒形継手部材４から飛び出させることを特徴とする。
また、第１２の発明は、第１〜第１１の発明において、前記角筒形継手部材は、前記セグメント本体に固着される基端部から先端にかけて先細になるように形成されてなることを特徴とする。
また、第１３の発明は、第１〜第１２の発明において、箱形断面のヒンジ固定継手部材が、角鋼管などの形鋼単独、またはＣ形鋼やアングル材の組み合わせからなることを特徴とする。 The inventor has solved the above-described problems, and [1] further improved the strength of the joint portion of the segment, [2] improved resistance to bending load acting on the joint portion, [3] simplified structure, 3) Improvement of workability, [4] In order to improve water-stopping performance, a rectangular tube-shaped joint member in which a rectangular hollow hole is formed adheres along both ends in the circumferential direction of the segment body, and One or more of the rectangular tubular joint members are arranged after adjusting the arrangement in the axial direction so that they can be fitted or connected in series between the segments adjacent in the circumferential direction. The joint structure of the segment which inserted the hinge fixing joint member in the hollow hole mutually connected by fitting or connecting the joint member in series was invented.
That is, the first invention is a connecting structure of the segments in a structure constructed by connecting a plurality of segments in the circumferential direction and the axial direction, and a rectangular tube-shaped joint member in which a rectangular hollow hole is formed. While being fixed along the circumferential direction both ends of the segment body, the axial arrangement of the rectangular tubular joint members is adjusted so that the segments can be continuously connected in series between the circumferentially adjacent segments. The hinge fixing joint member is inserted into the hollow holes connected to each other by connecting the rectangular tubular joint members in series.
Further, the second invention is a connecting structure of the segments in a structure constructed by connecting a plurality of segments in the circumferential direction and the axial direction, and a rectangular tubular joint member in which a rectangular hollow hole is formed. The segment main body is fixed along the circumferential ends of the segment body, and the rectangular tubular joint members are adjusted in the axial direction so that they can be fitted between the adjacent segments in the circumferential direction. The hinge fixing joint member is inserted into hollow holes connected to each other by fitting one or more square tube joint members.
Moreover, 3rd invention is 1st or 2nd invention. WHEREIN: The said square tube-shaped coupling member is fixed to the said segment main body with welding or a volt | bolt, or is attached to the edge part of the said segment comprised with concrete. It is characterized by being fixed by anchor muscles.
According to a fourth aspect, in the first to third aspects, the hinge fixing joint member is an H-shaped cross-section member or a box-shaped cross-section member, and is engageable with an inner surface of the connected hollow hole. It is characterized by.
According to a fifth invention, in the first to fourth inventions, the hinge fixing joint member is inserted into a hollow hole of the rectangular tubular joint member of the segment across a plurality of segments in the structure axial direction. It is characterized by.
In addition, a sixth invention is characterized in that, in the first to fifth inventions, the hinge fixing joint member is arranged at a corner portion of the rectangular segment ring to be a connecting member of the corner portion. .
In addition, a seventh invention is characterized in that, in the first to sixth inventions, an overhanging portion that also serves as a flange of the rectangular tubular joint member is provided integrally with the skin plate of the segment body.
The eighth invention is the first to seventh inventions, wherein the hinge fixing joint member has a lid attached to any one end and is inserted into the connected hollow hole. Further, a flat surface is formed between the outer surface of the lid and the side surface of the segment main body, and the lid can be fixed to a square tube joint member.
The ninth invention is the first to eighth inventions, in the outer peripheral surface on the hinge fixing joint member corresponding to the connection position of the hollow hole to be inserted, or in the axial direction of the rectangular tubular joint member. A water stop material is disposed on the outer peripheral surface along the surface, or on the surface of the segment main body end surface on which the mating rectangular tubular joint member to be fitted can come into contact. According to the first to ninth aspects of the invention, there is provided a space portion surrounded by a flange and a web of a hinge fixing joint member as an H-shaped cross-sectional member inserted into the connected hollow hole, or a box-shaped cross-sectional member. The concrete is characterized in that concrete is cast in the hollow hole.
In addition, in an eleventh aspect of the invention, in the first to tenth aspects of the invention, a cylinder made of a thin plate is fixed to the inner surface of the square tube joint member at the end of the square tube joint member, and is protruded from the square tube joint member 4. Features.
The twelfth invention is characterized in that, in the first to eleventh inventions, the rectangular tubular joint member is formed to be tapered from a base end portion fixed to the segment body to a tip end. And
The thirteenth invention is characterized in that, in the first to twelfth inventions, the hinge-fixed joint member having a box-shaped cross section is made of a shape steel such as a square steel pipe, or a combination of C-shape steel and an angle material. To do.

本発明によると、隣接するセグメント本体の周方向の端部に固着した角筒形継手部材にヒンジ固定継手部材を挿入して継手部を構成するので、相対する側の角筒形継手部材とヒンジ固定継手部材が協働してセグメント本体と同等の剛性、耐力を発揮でき、継手部に作用する引張りおよび曲げ荷重に強固に抵抗でき、構造も簡潔である。さらに、角筒形継手部材とヒンジ固定継手部材はセグメントの外形内に納めることができるので面外方向への凸凹がなく継手部の平坦性を確保できる。さらに、ヒンジ固定継手部材を筒形継手部材に挿入するだけで継手部を連結でき、従来のようなセグメント継手部の強度確保のためのボルト接合等の作業が不要であって、施工性に優れたセグメント継手部の連結構造を実現できる。   According to the present invention, since the hinge fixing joint member is inserted into the rectangular tubular joint member fixed to the end portion in the circumferential direction of the adjacent segment main body to constitute the joint portion, the opposing rectangular tubular joint member and hinge The fixed joint member cooperates to exhibit the same rigidity and proof stress as the segment main body, can strongly resist the tensile and bending loads acting on the joint portion, and has a simple structure. Furthermore, since the rectangular tubular joint member and the hinge fixed joint member can be accommodated within the outer shape of the segment, there is no unevenness in the out-of-plane direction, and the flatness of the joint portion can be ensured. In addition, it is possible to connect the joints by simply inserting the hinge fixed joint member into the cylindrical joint member, and there is no need for bolt joining or the like for securing the strength of the segment joint part as in the past, and it is excellent in workability. A connecting structure of segment joints can be realized.

以下、本発明の実施形態を図を参照して説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１、図２は、鋼殻（主桁とスキンプレートは省略する）にコンクリートを充填した合成セグメント８ａを継手部３を介して周方向に連結する実施形態を示し、図１は連結前の態様を示す斜視図、図２は連結後の態様を示す斜視図である。実施形態１の継手部３は、トンネル周方向に隣接するセグメント本体８の継手板１に固着された箱形断面形状の継手部材（以下、角筒形継手部材という）４と、相対する角筒形継手部材４の相互を連結するヒンジ固定継手部材２とから構成される。   1 and 2 show an embodiment in which a composite segment 8a filled with concrete in a steel shell (the main girder and skin plate are omitted) is connected in the circumferential direction via a joint portion 3, and FIG. FIG. 2 is a perspective view showing an embodiment after connection. The joint portion 3 of the first embodiment includes a box-shaped cross-section joint member (hereinafter referred to as a square tube joint member) 4 fixed to the joint plate 1 of the segment body 8 adjacent in the circumferential direction of the tunnel, and an opposing square tube. It is comprised from the hinge fixed joint member 2 which connects the shape joint members 4 mutually.

角筒形継手部材４は、溶接１９またはボルトによる摩擦接合により継手板１へ１以上に亘って取り付けられる。ちなみに、この角筒形継手部材４をボルト接合により継手板１へ取り付ける場合には、継手板１と接触する角筒形継手部材４の内側から継手板１にドリルねじを螺合して行うようにしてもよい。この角筒形継手部材４は、四角形状の中空孔４１が形成されてなるが、この中空孔４１の形状は矩形状であればいかなるもので構成されていてもよい。
この角筒形継手部材４は、形鋼を用いることでコスト低減が可能である。形鋼としては角形鋼管を用いることができる。また形鋼として、Ｃ形鋼を２つ組み合わせて角断面形状にするようにしてもよい。また、４個のアングル材を矩形になるように配置して溶接接合して、角筒断面の継手部材を構成するようにしてもよい。 The rectangular tubular joint member 4 is attached to the joint plate 1 over one or more by welding 19 or frictional joining with bolts. By the way, when this square tubular joint member 4 is attached to the joint plate 1 by bolting, a drill screw is screwed into the joint plate 1 from the inside of the square tubular joint member 4 in contact with the joint plate 1. It may be. The rectangular tubular joint member 4 is formed with a rectangular hollow hole 41. However, the hollow hole 41 may be formed of any shape as long as it is rectangular.
The square tubular joint member 4 can be reduced in cost by using a shape steel. A square steel pipe can be used as the shape steel. Further, as the shape steel, two C-shaped steels may be combined to form a square cross-sectional shape. Alternatively, four angle members may be arranged in a rectangular shape and welded to form a joint member having a square tube cross section.

この角筒形継手部材４は、周方向に隣接する２つのセグメント本体８を近接させて連結するときにおいて、嵌合可能となるように互いの軸方向の配置が調整されている。この図１の例では、周方向左側に位置するセグメント本体８において角筒形継手部材４ａ、角筒形継手部材４ｃが互いに間隔をおいて固着され、周方向右側に位置するセグメント本体８において、上記角筒形継手部材４ｂ、角筒形継手部材４ｄが互いに間隔をおいて固着されている。即ち、この周方向左側に位置するセグメント本体８と、周方向右側に位置するセグメント本体８との間で、角筒形継手部材４が互いにセグメント幅方向（トンネル軸方向）へ向かって交互になるように形成されることになる。このとき、角筒形継手部材４ｂの長手方向の長さは、角筒形継手部材４ａ、角筒形継手部材４ｃの間隔に合わせて調整され、また、角筒形継手部材４ｃの長手方向の長さは、角筒形継手部材４ｂ、角筒形継手部材４ｄの間隔に合わせて調整される。   The square tubular joint member 4 is adjusted in its axial arrangement so that it can be fitted when two segment bodies 8 adjacent in the circumferential direction are connected in proximity to each other. In the example of FIG. 1, in the segment body 8 located on the left side in the circumferential direction, the square tube joint member 4 a and the square tube joint member 4 c are fixed to each other with a space therebetween, and in the segment body 8 located on the right side in the circumferential direction, The rectangular tubular joint member 4b and the rectangular tubular joint member 4d are fixed to each other with a space therebetween. That is, between the segment main body 8 located on the left side in the circumferential direction and the segment main body 8 located on the right side in the circumferential direction, the rectangular tubular joint members 4 alternate in the segment width direction (tunnel axis direction). Will be formed. At this time, the length of the rectangular tubular joint member 4b in the longitudinal direction is adjusted in accordance with the interval between the rectangular tubular joint member 4a and the rectangular tubular joint member 4c. The length is adjusted in accordance with the interval between the square tube joint member 4b and the square tube joint member 4d.

ヒンジ固定継手部材２は、図１、図２に示すＨ形断面のヒンジ固定継手部材であり、対向する角筒形継手部材４を連結する機能を有すると同時に、角筒形継手部材４における中空孔４１に挿入されたときに、当該中空孔４１内面に係合され、それにより継手部を支点として両側のセグメント８ａに作用する曲げ荷重（ヒンジ作用）に抵抗する機能（これをヒンジ固定という）を発揮することが可能となる。   The hinge fixing joint member 2 is a hinge fixing joint member having an H-shaped cross section shown in FIGS. 1 and 2, and has a function of connecting the opposing rectangular tubular joint members 4, and at the same time, is hollow in the rectangular tubular joint member 4. When inserted into the hole 41, it is engaged with the inner surface of the hollow hole 41, thereby resisting bending load (hinge action) acting on the segments 8a on both sides with the joint as a fulcrum (this is called hinge fixing). Can be achieved.

したがって、Ｈ形断面ヒンジ固定継手部材２ａの断面積は、その外面が角筒形継手部材４の中空孔４１の内壁に沿うように調整されることになる。またＨ形断面ヒンジ固定継手部材２ａが曲げ荷重に対して、より少ない鋼材量で効率的に抵抗するためには、フランジ９がセグメントの桁高方向の両サイドに配置されるようにする。このように構成することで、Ｈ形断面ヒンジ固定継手部材２ａを角筒形継手部材４に挿入した場合において、セグメント本体８における継手部３に曲げ荷重が作用した場合、角筒形継手部材４とＨ形断面ヒンジ固定継手部材２ａが互いに接し支圧にて抵抗し、ヒンジ固定継手部材２ａのフランジ９の軸圧縮力にて抵抗できる。ちなみに、フランジ９の板厚は、支圧作用点における圧縮荷重に耐えられる厚みとなるように設計されている。   Accordingly, the cross-sectional area of the H-shaped hinge fixing joint member 2 a is adjusted so that the outer surface thereof is along the inner wall of the hollow hole 41 of the rectangular tubular joint member 4. Further, in order for the H-shaped hinge fixing joint member 2a to efficiently resist the bending load with a smaller amount of steel material, the flanges 9 are arranged on both sides of the segment in the digit height direction. With this configuration, when the H-shaped hinge fixing joint member 2a is inserted into the square tube joint member 4, when a bending load is applied to the joint portion 3 of the segment body 8, the square tube joint member 4 And the H-shaped hinge fixing joint member 2a come into contact with each other and resist by supporting pressure, and can be resisted by the axial compression force of the flange 9 of the hinge fixing joint member 2a. Incidentally, the plate thickness of the flange 9 is designed to be a thickness that can withstand the compressive load at the supporting point.

セグメント本体８の連結時において、角筒形継手部材４ｂは、角筒形継手部材４ａ、角筒形継手部材４ｃの間に、また角筒形継手部材４ｃは、角筒形継手部材４ｂ、角筒形継手部材４ｄの間に、ほぼ隙間無く挿入されることになる。実際にこの周方向左側のセグメント本体８とこの周方向右側のセグメント本体８とを互いにぶつからないように近接させ、相手側の継手板１に角筒形継手部材４をそれぞれ当接させる。この周方向左側に位置するセグメント本体８と、周方向右側に位置するセグメント本体８との間で、角筒形継手部材４は互いに交互となるように形成されているため、セグメント本体８の連結時においてこれらが互いに干渉し合うこともなくなる。即ち、角筒形継手部材４は、周方向に隣接するセグメント本体８間で嵌合可能となるように互いに軸方向の配置が調整されて構成されることになる。   When the segment body 8 is connected, the square tube joint member 4b is provided between the square tube joint member 4a and the square tube joint member 4c, and the square tube joint member 4c is provided between the square tube joint member 4b and the square tube member 4b. The cylindrical joint member 4d is inserted with almost no gap. Actually, the segment body 8 on the left side in the circumferential direction and the segment body 8 on the right side in the circumferential direction are brought close to each other so as not to collide with each other, and the rectangular tubular joint member 4 is brought into contact with the mating joint plate 1. Between the segment main body 8 located on the left side in the circumferential direction and the segment main body 8 located on the right side in the circumferential direction, the rectangular tubular joint members 4 are formed so as to alternate with each other. Sometimes they do not interfere with each other. That is, the rectangular tubular joint member 4 is configured such that the arrangement in the axial direction is adjusted with respect to each other so that the segment body 8 adjacent in the circumferential direction can be fitted.

また、セグメント本体８の連結時において、角筒形継手部材４ａ〜４ｄは、トンネル軸方向の同一線上に揃い、また図２に示すように角筒形継手部材４の前側面４２が相手側の継手板１と当接する。また、このとき相対する角筒形継手部材４の軸方向端面の境目２０に隙間が生じないように構成するようにしてもよい。   Further, when the segment body 8 is connected, the rectangular tubular joint members 4a to 4d are aligned on the same line in the tunnel axis direction, and the front side surface 42 of the rectangular tubular joint member 4 is the opposite side as shown in FIG. It contacts the joint plate 1. Moreover, you may make it comprise so that a clearance gap may not arise in the boundary 20 of the axial direction end surface of the square tube-shaped coupling member 4 which opposes at this time.

また、セグメント本体８の連結時において、角筒形継手部材４を嵌合させることにより、角筒形継手部材４ａ〜４ｄは、トンネル軸方向の同一線上に揃えることができ、その角筒形継手部材４内に形成された中空孔４１が互いに接続されることになる。その結果、この接続された中空孔４１がセグメント本体８の幅方向へ向かって延長され、この接続された中空孔４１内にヒンジ固定継手部材２を挿入することが可能な状態を作り出すことができる。実際に、この接続された中空孔４１内にヒンジ固定継手部材２を挿入することにより、ヒンジ固定継手部材２を介して互いに連結すべき角筒形継手部材４が強固に固定されることになり、ひいてはセグメント本体８間の連結力を高めることが可能となる。   Further, when the segment body 8 is connected, the rectangular tube joint members 4a to 4d can be aligned on the same line in the tunnel axis direction by fitting the rectangular tube joint member 4, and the rectangular tube joint The hollow holes 41 formed in the member 4 are connected to each other. As a result, the connected hollow hole 41 is extended in the width direction of the segment body 8, and a state in which the hinge fixing joint member 2 can be inserted into the connected hollow hole 41 can be created. . Actually, by inserting the hinge fixing joint member 2 into the connected hollow hole 41, the rectangular tubular joint members 4 to be coupled to each other via the hinge fixing joint member 2 are firmly fixed. As a result, the connecting force between the segment bodies 8 can be increased.

このように、本発明を適用したセグメントの連結構造では、隣接するセグメント本体８の周方向の端部に固着した角筒形継手部材４にヒンジ固定継手部材２を挿入して継手部３を構成する。これにより、相対する側の角筒形継手部材４とヒンジ固定継手部材２が協働してセグメント本体８と同等の剛性、耐力を発揮でき、継手部３に作用する引張りおよび曲げ荷重に強固に抵抗でき、構造をより簡潔化させることも可能となる。さらに、ヒンジ固定継手部材２を角筒形継手部材４に挿入するだけで継手部３を連結でき、従来のようなセグメント本体８における継手部３の強度確保のためのボルト接合等の作業を省略することが可能となることから、施工性に優れたセグメントの継手部の連結構造を実現できる。   As described above, in the segment connecting structure to which the present invention is applied, the hinge fixing joint member 2 is inserted into the square tubular joint member 4 fixed to the circumferential end portion of the adjacent segment body 8 to form the joint portion 3. To do. As a result, the opposing rectangular tube joint member 4 and the hinge fixing joint member 2 can work together to exhibit the same rigidity and proof stress as the segment body 8, and can withstand the tensile and bending loads acting on the joint portion 3. It can resist, and the structure can be simplified. Furthermore, the joint portion 3 can be connected simply by inserting the hinge fixing joint member 2 into the rectangular tube-shaped joint member 4, and the work such as bolt joining for securing the strength of the joint portion 3 in the segment body 8 as in the prior art is omitted. Therefore, it is possible to realize a connecting structure of a joint portion of a segment excellent in workability.

このとき、さらにＨ形断面を有するヒンジ固定継手部材２ａのフランジ９とウエブ２１で囲まれた空間内にコンクリートを打設するようにしてもよい。これにより、セグメント８本体に対して負荷される圧縮力に対する抵抗力を増加させることが可能となる。   At this time, concrete may be placed in a space surrounded by the flange 9 and the web 21 of the hinge fixing joint member 2a having an H-shaped cross section. Thereby, it becomes possible to increase the resistance to the compressive force applied to the segment 8 body.

なお、角筒形継手部材４は、セグメント本体８からトンネルの内空側にも地山側の何れの方向にも出張らないように、換言すれば角筒形継手部材４のトンネル内外方向の外面間距離がセグメント桁高と等しくなるように設けるようにしてもよい。さらに、角筒形継手部材４は、セグメント本体８からトンネル軸方向にも出張らないように設けるようにしてもよい。かかる場合には、連結時においてトンネル軸方向に連続する角筒形継手部材４の外面間距離の合計がセグメント本体８の幅と等しくなるように形成されることになる。   In addition, the square tubular joint member 4 does not travel from the segment body 8 in either the inner space side or the ground side of the tunnel, in other words, the outer surface of the square tubular joint member 4 in the inner and outer directions of the tunnel. The distance may be set to be equal to the segment digit height. Further, the square tubular joint member 4 may be provided so as not to travel from the segment body 8 in the tunnel axis direction. In such a case, the total distance between the outer surfaces of the rectangular tubular joint members 4 that are continuous in the tunnel axis direction at the time of connection is formed to be equal to the width of the segment body 8.

図３は、ヒンジ固定継手部材２ｂを箱形断面で構成した例を示している。このような構成においても、角筒形継手部材４における中空孔４１に挿入したときに、その内面に係合させることが可能となり、ヒンジ固定を実現することが可能となる。特にこの箱形断面を有するヒンジ固定継手部材２ｂを角筒形継手部材４の中空孔４１に挿入するだけで曲げと引張り荷重に抵抗でき、その中空部６にコンクリートを打設すると一層圧縮力に抵抗できる。   FIG. 3 shows an example in which the hinge fixing joint member 2b is configured with a box-shaped cross section. Even in such a configuration, when it is inserted into the hollow hole 41 in the rectangular tube-shaped joint member 4, it can be engaged with the inner surface thereof, and hinge fixing can be realized. In particular, the hinge-fixed joint member 2b having a box-shaped cross section can be resisted to bending and tensile load by simply inserting it into the hollow hole 41 of the rectangular tube-shaped joint member 4, and when concrete is placed in the hollow portion 6, the compressive force is further increased. I can resist.

この図３に示すようにヒンジ固定継手部材２ｂを箱形断面で構成する場合には、その外面が角筒形継手部材４の中空部内面に沿うように調整しておく。この箱形断面からなるヒンジ固定継手部材２ｂも、相対するセグメント８ａ同士を互いに連結することができると共に、継手部３に曲げ荷重が作用した場合、角筒形継手部材４と箱形断面からなるヒンジ固定継手部材２ｂが互いに接し支圧にて抵抗し、ヒンジ固定継手部材２ｂのフランジ９の軸圧縮力により抵抗することができるようになる。箱形断面ヒンジ固定継手部材２ｂの板厚は、支圧作用点における圧縮荷重に耐えられる厚みとなるように設計されている。   As shown in FIG. 3, when the hinge fixing joint member 2 b is configured with a box-shaped cross section, the outer surface is adjusted so as to be along the inner surface of the hollow portion of the rectangular tube-shaped joint member 4. The hinge-fixed joint member 2b having a box-shaped cross section can also connect the opposing segments 8a to each other and, when a bending load is applied to the joint portion 3, has a rectangular tube-shaped joint member 4 and a box-shaped cross section. The hinge fixing joint members 2b come into contact with each other and resist by supporting pressure, and can be resisted by the axial compression force of the flange 9 of the hinge fixing joint member 2b. The plate thickness of the box-shaped cross-section hinge fixed joint member 2b is designed to be a thickness that can withstand the compressive load at the supporting point.

なお継手部３において、セグメントリング端面（トンネル軸方向端面）を平坦にする必要があるとき、或いはヒンジ固定継手部材２ａ、２ｂを角筒形継手部材４から抜け出さないように固定する必要があるとき、或いはセグメント本体８を所定の位置に微調整する必要があるときは、以下の図４〜６に示す構成を更に適用するようにしてもよい。この図４〜６に示すヒンジ固定継手部材２ａ、２ｂでは、端部に側面蓋５を溶接にて取り付け、ヒンジ固定継手部材２ａ、２ｂを角筒形継手部材４に挿入したうえ、側面蓋５を角筒形継手部材４の端面にボルト、ビス１４等で固定する。角筒形継手４の端面には予め雌ねじを切っておく。このとき、側面蓋５に設けたボルト孔１３には、これに挿入するボルト、ビス１４等の頭部がセグメント本体８の面外方向に張り出さないように座刳り１６を設けることが好ましい。   In the joint portion 3, when the segment ring end face (tunnel axial end face) needs to be flattened, or when the hinge fixing joint members 2a and 2b need to be fixed so as not to come out of the square tubular joint member 4. Alternatively, when it is necessary to finely adjust the segment body 8 to a predetermined position, the following configurations shown in FIGS. 4 to 6 may be further applied. In the hinge fixing joint members 2a and 2b shown in FIGS. 4 to 6, the side cover 5 is attached to the end portion by welding, the hinge fixing joint members 2a and 2b are inserted into the rectangular tubular joint member 4, and the side cover 5 Is fixed to the end surface of the rectangular tubular joint member 4 with bolts, screws 14 or the like. An internal thread is cut in advance on the end surface of the rectangular tube joint 4. At this time, it is preferable to provide a counterbore 16 in the bolt hole 13 provided in the side cover 5 so that the heads such as bolts and screws 14 inserted into the bolt hole 13 do not protrude in the out-of-plane direction of the segment body 8.

側面蓋５は、図４、図５に示すように、セグメント本体８における幅方向の片面のみに位置するようにヒンジ固定継手部材２ａ、２ｂの一端部に取り付けられることになる。また、図６、図７に示すように、側面蓋５がセグメント本体８の側面方向へ張り出さないように側面蓋５の板厚分だけ角筒形継手部材４の端部をセグメント本体８の中央部側に後退させるように調整しておく。これにより、ヒンジ固定継手部材２ａ、２ｂに取付けられた側面蓋５の外面と、前記セグメント本体８の側面との間で平面が形成されることになり、ヒンジ固定継手部材２の抜け出しを防止できるとともに、面外方向への凸凹を無くすことも可能となり、より平坦性を確保することも可能となる。   As shown in FIGS. 4 and 5, the side cover 5 is attached to one end of the hinge fixing joint members 2 a and 2 b so as to be positioned only on one side of the segment body 8 in the width direction. Further, as shown in FIGS. 6 and 7, the end portion of the rectangular tubular joint member 4 is attached to the segment body 8 by the thickness of the side cover 5 so that the side cover 5 does not protrude in the side surface direction of the segment body 8. Adjust so that it moves backward toward the center. As a result, a flat surface is formed between the outer surface of the side cover 5 attached to the hinge fixing joint members 2a and 2b and the side surface of the segment body 8, and the hinge fixing joint member 2 can be prevented from coming out. At the same time, unevenness in the out-of-plane direction can be eliminated, and flatness can be further ensured.

次に、図７〜図１１を参照して、角筒形継手部材４をヒンジ固定継手部材２で連結する継手部３の止水性を確保する構造の各種の形態を説明する。継手部３の止水が必要な部位は、挿入すべき中空孔４１の連結位置（境目２０）に対応したヒンジ固定継手部材２上の外周面、又は角筒形継手部材４の軸方向に沿った外周面、又は前記セグメント本体８端面における嵌合すべき相手側の角筒形継手部材が当接可能な面である。かかる箇所では、セグメント本体８の連結時において隙間が生じる可能性が出てくるため、図示しない止水材を設けることにより、内部への水の浸入を防ぐ必要が出てくる。   Next, with reference to FIGS. 7-11, the various forms of the structure which ensures the water stop of the joint part 3 which connects the square tube-shaped coupling member 4 with the hinge fixing joint member 2 are demonstrated. The part of the joint portion 3 that needs water stop is along the outer peripheral surface on the hinge fixing joint member 2 corresponding to the connection position (boundary 20) of the hollow hole 41 to be inserted or along the axial direction of the rectangular tubular joint member 4. The outer peripheral surface, or the surface on which the mating rectangular tubular joint member to be fitted on the end surface of the segment main body 8 can come into contact. In such a location, there is a possibility that a gap is generated when the segment body 8 is connected. Therefore, it is necessary to prevent water from entering the interior by providing a water stop material (not shown).

実際に図１０、図１１に示す例において、箱形断面からなるヒンジ固定継手部材２ｂの上下面１０又は、Ｈ形断面からなるヒンジ固定継手部材２ａの上下フランジ９の外面に止水材取り付け用の溝７を加工し、この溝７部分に図示しない止水材を取り付け可能な構成とする。止水材取り付け用の溝７の形成位置は、境目２０に対応する部位に設ける。止水材には、吸水膨張性ゴムを用いることが好ましい。このように構成することで、ヒンジ固定継手部材２ａ、２ｂを角筒形継手部材４に挿入したとき、トンネル軸方向の端面の境目２０が溝７に取り付けられた止水材の膨張で水密的に密封される。ヒンジ固定継手部材２ａ、２ｂを角筒形継手部材４の中空部へ挿入する際、止水材が剥離するのを防止すべく、該止水材は止水材取り付け用溝７から突出しないように取り付られていることが好ましい。   Actually, in the example shown in FIG. 10 and FIG. 11, a water-stopping material is attached to the upper and lower surfaces 10 of the hinge fixing joint member 2b having a box-shaped cross section or the outer surface of the upper and lower flanges 9 of the hinge fixing joint member 2a having an H-shaped cross section. The groove 7 is processed so that a water stop material (not shown) can be attached to the groove 7 portion. The formation position of the groove 7 for attaching the water blocking material is provided at a site corresponding to the boundary 20. It is preferable to use a water-absorbing expandable rubber as the waterstop material. With this configuration, when the hinge fixing joint members 2a and 2b are inserted into the square tube joint member 4, the boundary 20 on the end surface in the tunnel axial direction is watertight due to expansion of the water stop material attached to the groove 7. Sealed. When the hinge fixing joint members 2a and 2b are inserted into the hollow portion of the rectangular tube-shaped joint member 4, the water stopping material does not protrude from the water stopping material attaching groove 7 in order to prevent the water stopping material from peeling off. It is preferable that it is attached to.

図７〜図９は、角筒形継手部材４の軸方向への止水方法、並びにセグメント本体８端面における嵌合すべき相手側の角筒形継手部材４が当接可能な位置への止水方法を示している。図７、図８に示す例では、角筒形継手部材４の前面１１の上下部にセグメント本体８における幅方向に伸びる止水材取り付け用の溝７を設け、この溝７に吸水膨張性ゴムの止水材を固着する。このように構成することで、角筒形継手部材４の前面１１と相手側の継手板１の当接部分が止水材の膨張で水密的に封止されることになる。また、図９に示すように、継手板１の前面に止水材取り付け用の溝７を設け、この溝７に吸水膨張性ゴムの止水材を固着する。このように構成することで継手板１と相手側の角筒形継手部材４との当接部分が止水材の膨張で水密的に封止されることになる。なお、セグメント本体８における継手部３での止水性を確保するためには、角筒形継手部材４の個数は必要最小限であることが好ましく、対向側にそれぞれ２個ずつ取り付けることが好ましい。   7 to 9 show a method for water-stopping the rectangular tubular joint member 4 in the axial direction, and stopping at a position where the mating rectangular tubular joint member 4 to be fitted can abut on the end face of the segment body 8. Shows water method. In the example shown in FIGS. 7 and 8, a groove 7 for attaching a water-stopping material extending in the width direction of the segment body 8 is provided in the upper and lower portions of the front surface 11 of the rectangular tube-shaped joint member 4. Secure the water stop material. By comprising in this way, the contact part of the front surface 11 of the square tube-shaped coupling member 4 and the other party coupling plate 1 will be sealed watertight by expansion | swelling of a water stop material. Further, as shown in FIG. 9, a groove 7 for attaching a water-stopping material is provided on the front surface of the joint plate 1, and a water-stopping material made of water-swellable rubber is fixed to the groove 7. By comprising in this way, the contact part of the joint board 1 and the other party square tube-shaped joint member 4 will be sealed watertight by expansion | swelling of a water stop material. In addition, in order to ensure the water stop in the joint part 3 in the segment main body 8, it is preferable that the number of the rectangular tube-shaped joint members 4 is the minimum necessary, and it is preferable to attach two each at the opposing side.

なお、本発明は上述した実施の形態に限定されるものではない。例えば、図１２に示すように、角筒形継手部材４の数量の合計を３個で構成するようにしてもよい。両側の継手板１共に１個の角筒形継手部材４のみでは、セグメント本体８における継手部３に引張り荷重が作用したときに、ヒンジ固定継手部材２が片持ち梁状態になり耐力が低下してしまう。従って、図１２に示すように、最少でも、対向する継手板１の片方に１つの角筒形継手部材４を固着し、もう片方の継手板１に２つの角筒形継手部材４を固着するなどして、互いに違う個数の角筒形継手部材４を固着することになる。
但し、連結する各セグメント８ａの間において、荷重分担の均一性を保つためには、図１等に示すように、周方向左側、周方向右側ともに同数の同型の角筒形継手部材４をそれぞれの継手板１に均等間隔で取り付けることが好ましい。
ちなみに、周方向左側に位置するセグメント本体８に取り付けられる角筒形継手部材４の数量、並びに周方向右側に位置するセグメント本体８に取り付けられる角筒形継手部材４の数量の合計は、３個以上となるように取り付けられていればいかなる構成であってもよい。 The present invention is not limited to the embodiment described above. For example, as shown in FIG. 12, you may make it comprise the sum total of the quantity of the square tube-shaped coupling member 4 by three pieces. With only one rectangular tubular joint member 4 on both joint plates 1, when a tensile load is applied to the joint portion 3 in the segment body 8, the hinge fixing joint member 2 becomes a cantilever state and the yield strength decreases. End up. Therefore, as shown in FIG. 12, at least one rectangular tube-shaped joint member 4 is fixed to one of the opposing joint plates 1, and two rectangular tube-shaped joint members 4 are fixed to the other joint plate 1. Thus, a different number of rectangular tubular joint members 4 are fixed.
However, in order to keep the load sharing uniform between the segments 8a to be connected, as shown in FIG. 1 and the like, the same number of the rectangular tube joint members 4 of the same type on both the left side in the circumferential direction and the right side in the circumferential direction are provided. It is preferable to attach to the joint plate 1 at regular intervals.
Incidentally, the total number of the rectangular tubular joint members 4 attached to the segment main body 8 located on the left side in the circumferential direction and the total number of the square tubular joint members 4 attached to the segment main body 8 located on the right side in the circumferential direction is three. Any configuration may be used as long as it is attached as described above.

上記に示した継手形式は、いずれもヒンジ固定継手部材２（２ａ〜２ｅ）の長さがセグメント幅と一致する実施形態を示したが、他の実施形態として、図１８〜図２２に示すように、セグメント幅よりも長い、所定の長さの長尺のヒンジ固定継手部材２ｃを所定の間隔（図示の場合は、等角度間隔）で配置して、図２４に示すようなセグメント８ｂの長手方向（周方向）の左右の端部（継手板１の部分）に角筒形継手部材４を１つずつ有するセグメント８ｂを、ヒンジ固定継手部材２ｃの軸方向に千鳥状配置で挿入していく形態としても構わない。
また、前記実施形態１では、周方向に隣接するセグメントにおける角筒形継手部材４を嵌合させることにより、角筒形継手部材４を直列に連続させる形態を示したが、図１９に示すように、周方向に隣接するセグメントを千鳥配置とすることで、角筒形継手部材４を直列に連続させる形態としてもよい。すなわち、周方向に隣接するセグメント８ｂの角筒形継手部材４は、構造物２８の軸方向に直列に連続するように軸方向の配置が調整されて配設されていればよく、このようなセグメントでは、ヒンジ固定継手部材２ｃの軸方向に千鳥状配置となるように、構造物２８の周方向に交互に、かつ構造物２８の軸方向にスライドさせるように配置することにより、周方向の一方の２つのセグメント８ｂにおける角筒形継手部材４間に、周方向の他方の１つのセグメントにおける角筒形継手部材４を配置することで、角筒形継手部材４を直列に連続するように配置することが可能になる。
なお、前記ヒンジ固定継手部材２を間隔をおいて保持する手段としては、後記するように、ヒンジ固定扉継手部材２の先端部を地盤に圧入して保持させても、支保工により仮支持させてもよい。 Although all the joint types shown above have shown the embodiment in which the length of the hinge fixing joint member 2 (2a to 2e) coincides with the segment width, as another embodiment, as shown in FIGS. In addition, long hinge fixing joint members 2c having a predetermined length longer than the segment width are arranged at a predetermined interval (in the illustrated case, equiangular intervals), and the length of the segment 8b as shown in FIG. The segments 8b each having one rectangular tube-shaped joint member 4 at the left and right ends (joint plate 1 portion) in the direction (circumferential direction) are inserted in a staggered arrangement in the axial direction of the hinge fixing joint member 2c. It does not matter as a form.
Moreover, in the said Embodiment 1, although the square tube-shaped joint member 4 in the segment adjacent to the circumferential direction was fitted, the form which made the square tube-shaped joint member 4 continue in series was shown, but as shown in FIG. Moreover, it is good also as a form which makes the square cylinder coupling member 4 continue in series by making the segment which adjoins the circumferential direction staggered. That is, the rectangular tubular joint member 4 of the segment 8b adjacent in the circumferential direction only needs to be arranged such that the arrangement in the axial direction is adjusted so as to continue in series in the axial direction of the structure 28. In the segments, by arranging them alternately in the circumferential direction of the structure 28 and so as to slide in the axial direction of the structure 28 so as to have a staggered arrangement in the axial direction of the hinge fixing joint member 2c, By arranging the rectangular tubular joint member 4 in the other one segment in the circumferential direction between the rectangular tubular joint members 4 in the two segments 8b, the rectangular tubular joint member 4 is connected in series. It becomes possible to arrange.
In addition, as a means for holding the hinge fixing joint member 2 at an interval, even if the distal end portion of the hinge fixing door joint member 2 is press-fitted into the ground and held as described later, it is temporarily supported by a supporting work. May be.

第２の発明におけるセグメント継手形式を用いた場合のセグメントをトンネル状に組み立てた場合は、図２８に示すように、トンネル軸方向に隣接するセグメントリング２７同士において、セグメント本体８が千鳥状配置になっているが、本発明の実施形態では、図１９に示すように、周方向に隣接するセグメント本体８同士が千鳥になっている。ヒンジ固定継手部材２ｃの総延長寸法としては、最終構造物２８の軸方向長さ寸法と同じ長さ寸法にするが、トンネルのように総延長が数ｋｍにも及ぶようなものや、構造物２８の軸方向長さ寸法が２０ｍ程度以上になり、１本の部材としてトラック等で輸送できる範囲を超えてしまうような場合には、ヒンジ固定継手部材２ｃは縦継して総延長距離を調整する。   When the segments in the case of using the segment joint type in the second invention are assembled in a tunnel shape, the segment main bodies 8 are arranged in a staggered manner in the segment rings 27 adjacent to each other in the tunnel axial direction as shown in FIG. However, in the embodiment of the present invention, as shown in FIG. 19, the segment bodies 8 adjacent in the circumferential direction are staggered. The total extension dimension of the hinge fixing joint member 2c is the same length as the axial length of the final structure 28. However, the total extension of the hinge fixed joint member 2c extends to several kilometers, such as a tunnel, When the axial length of 28 exceeds about 20 m and exceeds the range that can be transported as a single member by truck or the like, the hinge fixing joint member 2c is cascaded to adjust the total extension distance. To do.

ヒンジ固定継手部材２ｃの縦継方法としては、連結板を利用してこれを上下に隣り合うヒンジ固定部材２ｃに渡って配置してボルトにて連結する方法の他、縦継部におけるヒンジ固定継手部材２ｃの端部同士を溶接して固着する方法でも良い。   As a longitudinal connection method of the hinge fixing joint member 2c, in addition to a method in which a connecting plate is used and arranged over the hinge fixing members 2c adjacent to each other in the vertical direction and connected by bolts, a hinge fixing joint in the longitudinal connection portion is used. A method of welding and fixing the end portions of the member 2c may be used.

また、縦継部の位置と角筒形継手部材４の境界部の位置が一致せず、縦継部の位置が角筒形継手部材４の軸方向内に収るように配置した場合は、ヒンジ固定継手部材２ｃの端部同士を敢えて固着する必要はなく、下側のヒンジ固定継手部材２ｃの上に、上側のヒンジ固定継手部材２ｃが単に載置されているだけでもよい。   In addition, when the position of the longitudinal joint portion and the position of the boundary portion of the rectangular tubular joint member 4 do not coincide with each other, and the position of the longitudinal joint portion is disposed within the axial direction of the rectangular tubular joint member 4, The ends of the hinge fixing joint member 2c do not have to be fixed to each other, and the upper hinge fixing joint member 2c may simply be placed on the lower hinge fixing joint member 2c.

セグメント８ｂへの角筒形継手部材４の取り付け方法としては、図１８に示すように、角筒形継手部材４の長さＬをセグメント８ｂの幅Ｗの１／２の寸法として、継手板１中央に取り付け、継手板１において角筒形継手部材４が取り付いていない部分の長さ寸法が、角筒形継手部材４の両側でセグメント幅Ｗの１／４づつの寸法になるようにすることが、千鳥組み状に組む際最も好ましい。角筒形継手部材４をセグメント８ｂの片側の継手板１において１つのみ取り付ける構造とすることによって、継手１に２つ以上角筒形継手部材４を複数設ける場合に比べて、角筒形継手部材４の嵌合部の境界線の全体数が減り、止水性が向上する。   As shown in FIG. 18, the length L of the square tubular joint member 4 is set to 1/2 the width W of the segment 8b as shown in FIG. At the center, the length of the portion of the joint plate 1 where the square tubular joint member 4 is not attached is made to be 1/4 of the segment width W on both sides of the square tubular joint member 4. However, it is most preferable when assembled in a staggered pattern. By adopting a structure in which only one rectangular tubular joint member 4 is attached to the joint plate 1 on one side of the segment 8b, the rectangular tubular joint is compared with the case where two or more rectangular tubular joint members 4 are provided in the joint 1. The total number of boundary lines of the fitting portions of the member 4 is reduced, and the water stoppage is improved.

また、セグメント８ｂを千鳥状に組み込んでいくことによって、構造物としての最終形態に組み立てられた際、構造物２８全体に曲げやせん断荷重が作用したとき、セグメント８ｂ間に荷重が分担され、継手部のみに荷重が集中することを避けることができる。   In addition, by assembling the segments 8b in a staggered manner, when a bending or shearing load is applied to the entire structure 28 when assembled into a final form as a structure, the load is shared between the segments 8b, and the joint It is possible to avoid the concentration of the load only on the part.

個々のセグメント８ｂの軸方向の接続方法としては、従来技術と同様に、図示を省略するが、主桁を備えたセグメント８ｂである場合には、主桁側面においてボルトとナットにて連結してもよく、ワンサイドボルトを利用して施工能率を向上させるような構造としても構わない。   As for the connecting method of the individual segments 8b in the axial direction, the illustration is omitted as in the prior art, but in the case of the segment 8b having the main girder, it is connected with bolts and nuts on the side of the main girder. Alternatively, a structure that improves the construction efficiency by using one-side bolts may be used.

また、ヒンジ固定継手部材２ｃを利用して、本実施形態のセグメント８ｂを垂直方向に積んで、橋脚やサイロのような構造物を構築する場合は、セグメント８ｂの自重により、軸方向のセグメント８ｂの境界部において互いに密接するため、構造物両端部においてのみ、図２９に示すように、セグメントの抜け出し防止用にヒンジ固定継手部材２ｃと角筒形継手部材４とをボルト１４等で連結し、軸方向の個々のセグメント本体８の連結を省略することもできる。   Further, when a structure such as a pier or silo is constructed by vertically stacking the segments 8b of the present embodiment using the hinge fixing joint member 2c, the segments 8b in the axial direction are caused by the weight of the segments 8b. 29, only at both ends of the structure, as shown in FIG. 29, the hinge fixing joint member 2c and the square tubular joint member 4 are connected with bolts 14 or the like to prevent the segments from coming out, The connection of the individual segment bodies 8 in the axial direction can also be omitted.

ヒンジ固定継手部材２ｃの抜け出し防止用に、少なくとも構造物２８の両端部においては上記のように固定することが好ましいが、より強固に連結するために、両端部のみでなく、構造物全長または、所定の間隔を置いて用いても構わない。
施工方法について図３２〜図３４を用いて説明する。 In order to prevent the hinge fixing joint member 2c from slipping out, it is preferable to fix at least both ends of the structure 28 as described above, but in order to connect more firmly, not only both ends but also the entire length of the structure or You may use it at predetermined intervals.
A construction method will be described with reference to FIGS.

図３２に示すように、まずヒンジ固定継手部材２ｃを所定の位置に設置する。トンネルのように水平方向に延長する構造物においては、支保工でヒンジ固定継手部材２ｃを支える。橋脚やサイロのような構造物においては、ヒンジ固定継手部材２ｃを地盤中に打ち込み杭としての役割も兼用させてもよく、別途基礎構造物とヒンジ固定継手部材２ｃを連結して、ヒンジ固定継手部材２ｃを所定の位置に固定する方法としても構わない。   As shown in FIG. 32, the hinge fixing joint member 2c is first installed at a predetermined position. In a structure such as a tunnel that extends in the horizontal direction, the hinge fixing joint member 2c is supported by a supporting work. In a structure such as a bridge pier or silo, the hinge fixing joint member 2c may be driven into the ground to also serve as a pile, and the foundation structure and the hinge fixing joint member 2c are separately connected to form a hinge fixing joint. A method of fixing the member 2c at a predetermined position may be used.

ヒンジ固定継手部材２ｃの位置が固定されたら、本発明において使用する角筒形継手部材４を有するセグメント８ｂ，８ｃの内、まず構造物の端部に角筒形継手部材４が配置されるセグメント８ｃから順次、ヒンジ固定継手部材２ｃ間内に挿入していく。最初に、構造物２８の端部に配置されるセグメント８ｂ，８ｃの中で、構造物の軸方向の端部が平坦となるよう、周方向に１つずつの等角度間隔で、セグメントの幅寸法の長さを、他のセグメント幅寸法の半分の幅寸法とされたセグメント８ｃを一つおきに挿入する。従って、構造物２８の周方向には偶数個のセグメント８（８ｂ，８ｃ）を配設することが望ましい。   When the position of the hinge fixed joint member 2c is fixed, the segment in which the square tubular joint member 4 is first arranged at the end of the structure among the segments 8b and 8c having the square tubular joint member 4 used in the present invention. The hinge fixing joint member 2c is sequentially inserted from 8c. First, of the segments 8b and 8c arranged at the end of the structure 28, the width of the segment at equal angular intervals one by one in the circumferential direction so that the axial end of the structure is flat. Insert every other segment 8c whose length is half the width of the other segment width. Therefore, it is desirable to arrange an even number of segments 8 (8b, 8c) in the circumferential direction of the structure 28.

次に、図３３に示すように、図３２に示す前段階でセグメント８ｃを挿入しなかったヒンジ固定継手部材２ｃ間内に、両端に角筒形継手部材４を有するセグメント８ｂを挿入していく。この段階で端部に位置するセグメント８ｂ，８ｃが全て配置されたことになる。
更に、図３４に示すように、前段階でセグメント８ｃを挿入しなかったヒンジ固定継手部材２ｃ間に、新たにセグメント８ｂを挿入する。 Next, as shown in FIG. 33, the segments 8b having the rectangular tubular joint members 4 at both ends are inserted into the space between the hinge fixed joint members 2c where the segment 8c was not inserted in the previous stage shown in FIG. . At this stage, the segments 8b and 8c located at the end are all arranged.
Furthermore, as shown in FIG. 34, the segment 8b is newly inserted between the hinge fixing joint members 2c into which the segment 8c has not been inserted in the previous stage.

以後、前段階でセグメント８ｂを挿入しなかったヒンジ固定継手部材２ｃ間に新たにセグメント８ｂを挿入する作業工程を繰り返していく。ヒンジ固定体継手部材２ｃの長さが足りなくなった時点で、ヒンジ固定体継手部材２ｃを縦継し、ヒンジ固定体継手部材２ｃの長さを更に延長していく。   Thereafter, the work process of newly inserting the segment 8b between the hinge fixing joint members 2c into which the segment 8b has not been inserted in the previous stage is repeated. When the length of the hinge fixed body joint member 2c becomes insufficient, the hinge fixed body joint member 2c is cascaded, and the length of the hinge fixed body joint member 2c is further extended.

最終的にもう片方の端部まで構造物として組み上げた段階で、構造物端部に位置するセグメント８ｃを設置して、構造物２８を完成させる。構造物の長手軸方向に貫通したヒンジ固定継手部材２ｃにセグメント８ｂ，８ｃを挿入していくだけで、構造物２８を構築できるため、先の図１に示したような実施形態の個々のリング内毎にヒンジ固定継手部材２ｃを別々に挿入するよりも、施工能率が格段に向上する。また最終的に角筒形継手部材４内にコンクリートを打設する際、セグメントリング２７間毎ではなく、一方の端部から他方の端部まで一気通関した空間内にコンクリートを送り込むことができるため、より一層施工能率が向上する。
セグメント相互を連結するヒンジ固定継手部材２ｃは、図１８，図１９に示すように、トンネル又はボックスカルバート等を断面リング状に形成した場合、及び、図２０，２１に示すように平面状に形成した場合の両方に適用することが可能である。
円形のリング状に本発明のセグメントを組み上げて構造物２８を構築した場合、ヒンジ固定継手部材２ｃおよび角筒形継手部材４のトンネル半径方向における内外のフランジ部の曲率としては、完全な円形を構築する場合、曲率をつけた構造としてもよいが、道路トンネルような大断面においては、セグメント継手部のわずかな距離の直線部は、トンネル断面の全体形状に殆ど影響を与えないため、前記フランジ部が直線状のままの方が、加工コストを低く抑えられることからも、それぞれの前記フランジ部を直線状のままとしても構わない。 When the structure is finally assembled to the other end, the segment 8c positioned at the structure end is installed to complete the structure 28. Since the structure 28 can be constructed simply by inserting the segments 8b and 8c into the hinge fixing joint member 2c penetrating in the longitudinal direction of the structure, it is possible to construct the structure 28 in each ring of the embodiment as shown in FIG. The construction efficiency is remarkably improved compared to inserting the hinge fixing joint member 2c separately every time. In addition, when concrete is finally placed in the rectangular tube-shaped joint member 4, the concrete can be fed not only between the segment rings 27, but into a space that is customarily cleared from one end to the other end. The construction efficiency is further improved.
As shown in FIGS. 18 and 19, the hinge fixing joint member 2c for connecting the segments to each other is formed in a planar shape as shown in FIGS. 20 and 21 when a tunnel or a box culvert is formed in a ring shape in cross section. It is possible to apply to both cases.
When the structure 28 is constructed by assembling the segments of the present invention into a circular ring shape, the curvature of the inner and outer flange portions in the tunnel radial direction of the hinge fixing joint member 2c and the rectangular tubular joint member 4 is a perfect circle. In the case of construction, a structure with a curvature may be used. However, in a large cross section such as a road tunnel, the straight portion of a small distance of the segment joint portion hardly affects the overall shape of the tunnel cross section. Since the processing cost can be reduced if the portions remain straight, the flange portions may remain straight.

図２２は多角形状のセグメントリング２７の隅角部にヒンジ固定継手部材２ｄを配置した場合の斜視図であり、図３０は図２２の左側面を示した状態である。多角形状のセグメントリング２７は周方向断面において、直線状の複数の辺とある所定の角度を有する辺の数と同数の隅角部とで構成され、例えばボックスカルバートのような四角形状セグメントリング２７においては、直線状の４辺と角度が９０度である４つの隅角部とから形成される。
隅角部を有する１つの平版状のセグメント８ｄを加工することは、例えば鋼殻セグメントでは、部材の曲げ加工・切断・溶接等の加工作業が増えコストアップであり精度の良いセグメント作ることが困難であるが、図２２のようなヒンジ固定継手部材２ｄを利用して、これを隅角部の連結材として使用し、角筒形継手部材４と共同して隅角部ジョイント部を形成することによって、平板形のセグメント８ｄを繋げることで、隅角部を形成することができ、セグメント８の加工手間を大幅に削減することができる。 FIG. 22 is a perspective view when the hinge fixing joint member 2d is arranged at the corner of the polygonal segment ring 27, and FIG. 30 shows the left side of FIG. The polygonal segment ring 27 is composed of a plurality of straight sides and the same number of corners as a number of sides having a predetermined angle in the circumferential cross section, for example, a square segment ring 27 such as a box culvert. Is formed from four straight sides and four corners having an angle of 90 degrees.
Machining one flat segment 8d having a corner portion increases, for example, in the case of a steel shell segment, because the number of processing operations such as bending, cutting and welding of the member increases, and it is difficult to make a highly accurate segment. However, by using the hinge fixing joint member 2d as shown in FIG. 22 and using this as a connecting member for the corner portion, the corner joint portion is formed in cooperation with the square tubular joint member 4. Thus, by connecting the flat segment 8d, the corner portion can be formed, and the processing effort of the segment 8 can be greatly reduced.

隅角部ジョイントを形成するヒンジ固定継手部材２ｄとしては、図２２のようにＨ形断面形状の部材でも構わないが、図２３のようにＨ形断面形状の部材のウェブ２９に、Ｔ形断面形状の部材の脚部３０を溶接して、隅角部に作用する曲げモーメントに対して、交差する２辺において、どちらの辺でも同様の曲げ耐力が発揮できるよう、方向性（方向特性）をなくした形状のヒンジ固定継手部材２ｅとしてもいい。方向性をなくす観点からは、隅角部のヒンジ固定継手部材２としては、箱型断面形状のものを用いることが好ましい。   The hinge fixing joint member 2d forming the corner joint may be a member having an H-shaped cross section as shown in FIG. 22, but a T-shaped cross section is formed on the web 29 of the member having an H-shaped cross section as shown in FIG. Directing (directional characteristics) so that the same bending strength can be exerted on either side of the intersecting two sides with respect to the bending moment acting on the corners by welding the leg 30 of the shaped member. It is good also as the hinge fixed coupling member 2e of the lost shape. From the viewpoint of eliminating directionality, it is preferable to use a box-shaped cross-sectional shape as the hinge fixing joint member 2 at the corner.

図２４のような左右に１つずつの角筒形継手部材４を有するセグメント８ｂの製作方法としては、角筒形継手部材４を継手板に溶接またはボルトにて固着しても構わないが、図２５（ａ），（ｂ）に分解図および組み立て図を示すように（主桁は省略した）、スキンプレート２３の周方向の端部を周方向外側に張り出すように拡張して張り出し部２６（ａ）を一体成形し、角筒形継手部材４のトンネル半径方向外縁部のフランジ部２６を兼用するようにしても良い。スキンプレート２３のセグメント継手が配置される辺の中央において、一枚板としてスキンプレート２３を延長して、角筒形継手部材４の外縁側フランジ部２６となる箇所を形成する。   As a manufacturing method of the segment 8b having one square tube joint member 4 on each of the left and right as shown in FIG. 24, the square tube joint member 4 may be fixed to the joint plate by welding or bolts. As shown in FIGS. 25 (a) and 25 (b) in an exploded view and an assembled view (the main girder is omitted), the projecting portion is extended so that the circumferential end of the skin plate 23 projects outward in the circumferential direction. 26 (a) may be integrally formed, and the flange portion 26 at the outer edge portion in the tunnel radial direction of the rectangular tubular joint member 4 may also be used. In the center of the side where the segment joint of the skin plate 23 is arranged, the skin plate 23 is extended as a single plate to form a portion that becomes the outer edge side flange portion 26 of the rectangular tubular joint member 4.

スキンプレート２３のセグメント継手の位置においてセグメント幅方向に沿って、角筒形継手部材４のウェブおよび継手板１を構成する段付き板状の角筒形継手部材構成部材２４ａの一辺の先端部を溶接にて取付け、また、角筒形継手部材４のウェブを構成する断面L型の角筒形継手部材構成部材２４ｂの一辺の先端部を溶接にて取り付ける。また、スキンプレート２３の周方向他方において、段付き板状の角筒形継手部材構成部材２４ａの一辺の先端部を溶接にてスキンプレート２３に取付け、また、山形形状をしたもう一方の角筒形継手部材構成部材２４ｂを、スキンプレート２３と一体に延長して形成した角筒形継手部材４のフランジ２６部と、前記角筒形継手部材構成部材２４ａとに溶接にて固着し、セグメント継手部を形成する。
こうすることで、継手部に曲げ荷重が作用したとき角筒形継手部材フランジ部２６に作用する引張り荷重を、直接セグメント本体に確実に流すことができるため、図示を省略するが、従来のように、角筒形継手部材４を継手板に溶接またはボルトにて固着した場合に、角筒形継手部材４と継手板との境界部で起こりうる溶接欠陥やボルト締め不良等による部材耐力の低下を防ぐことができる。図３１に図２５に示すようなスキンプレート２３等を有する形態のセグメント８ｂを用いて図１９に示すような構造物２８を構築した場合の斜視図が示されている。 At the position of the segment joint of the skin plate 23, along the segment width direction, the tip of one side of the stepped plate-shaped square tube joint member constituting member 24a constituting the web of the square tube joint member 4 and the joint plate 1 is formed. It attaches by welding and also attaches the front-end | tip part of one side of the square-tube-shaped joint member structural member 24b of the L-shaped cross section which comprises the web of the square-tube-shaped joint member 4 by welding. Further, on the other circumferential side of the skin plate 23, the tip of one side of the stepped plate-shaped rectangular tube joint member constituting member 24a is attached to the skin plate 23 by welding, and the other rectangular tube having a chevron shape. The shape joint member constituting member 24b is fixed to the flange 26 portion of the rectangular tubular joint member 4 formed integrally with the skin plate 23 by welding and the segment joint joint 24a. Forming part.
In this way, when a bending load is applied to the joint, the tensile load acting on the rectangular tubular joint member flange 26 can be surely flowed directly to the segment body. Furthermore, when the rectangular tubular joint member 4 is fixed to the joint plate by welding or bolts, the strength of the member is reduced due to welding defects or poor bolting that may occur at the boundary between the rectangular tubular joint member 4 and the joint plate. Can be prevented. FIG. 31 is a perspective view in the case where the structure 28 as shown in FIG. 19 is constructed using the segment 8b having the skin plate 23 and the like as shown in FIG.

また止水性をより確実なものにするために、図２６（ａ）（ｂ）（ｃ）に示すように、角筒形継手部材４の軸方向の端面に、角筒形継手部材４の端面における板厚方向中間部に、各筒形継手部材４の端面全周にわたって、相似形等のほぼ環状の止水溝７を加工し吸水性膨張止水材（図示を省略した）を取り付けて止水効果を向上させるようにしてもよい。吸水性膨張止水材取り付け用の止水溝７としては、前述の実施形態と同様に、図８、図９に示すように、角筒形継手部材４や継手板１に設けても構わないし、図１０や図１１に示すようにヒンジ固定継手部材２ｃに設けても構わない。吸水性膨張止水材を溝７にはめ込み接着剤にて固着する。   Further, in order to make the water-stopping property more reliable, as shown in FIGS. 26 (a), (b) and (c), the end surface of the rectangular tubular joint member 4 is disposed on the axial end surface of the rectangular tubular joint member 4. At the intermediate portion in the plate thickness direction, a substantially annular water-stop groove 7 of a similar shape or the like is processed over the entire end surface of each cylindrical joint member 4 and a water-absorbing expansion water-stop material (not shown) is attached and stopped. You may make it improve a water effect. As shown in FIGS. 8 and 9, the water-stop groove 7 for attaching the water-absorbing expansion water-stop material may be provided in the rectangular tubular joint member 4 or the joint plate 1 as shown in FIGS. 8 and 9. As shown in FIGS. 10 and 11, the hinge fixing joint member 2c may be provided. A water-absorbing expansion water blocking material is fitted into the groove 7 and fixed with an adhesive.

また、ヒンジ固定継手部材２ｃ間に角筒形継手部材４を挿入した後、コンクリートを打設する場合、角筒形継手部材４の端面境界部からコンクリートが漏れ出さないようにするために、図２７に示すような薄板からなるコンクリート漏洩防止用筒２５の基端部を角筒形継手部材４の内面に固着すると共に、コンクリート漏洩防止用筒２５の先端部を角筒形継手部材４から突出させ、連結すべく対向するセグメントの角筒形継手部材４内に挿入配置させてもよい。   In addition, when inserting concrete after inserting the rectangular tube joint member 4 between the hinge fixed joint members 2c, in order to prevent the concrete from leaking out from the end surface boundary portion of the rectangular tube joint member 4, FIG. 27, the base end portion of the concrete leakage prevention cylinder 25 made of a thin plate as shown in FIG. 27 is fixed to the inner surface of the rectangular tube joint member 4 and the distal end portion of the concrete leakage prevention tube 25 projects from the square tube joint member 4. It may be inserted and arranged in the rectangular tubular joint member 4 of the opposing segment to be connected.

コンクリート漏洩防止用筒２５の断面形状は、角筒形継手部材４の内面形状に沿う形状とすればよい。コンクリート漏洩防止用筒２５の役割は、隣り合う角筒形継手部材４の境界部の隙間を埋めるだけであるため、できるだけ薄い板を用いるとよく、角筒形継手部材４の内面との固着方法としては、合成樹脂製等の接着剤で取り付ける程度でよい。前記コンクリート漏洩防止用筒２５を構成する薄板の厚さとしては、角筒形継手部材４内面とヒンジ固定継手部材２ｃ外面との間にできる隙間以下とし、ヒンジ固定継手部材２ｃの挿入時に障害とならないようにする。   The cross-sectional shape of the concrete leakage preventing cylinder 25 may be a shape that conforms to the inner surface shape of the rectangular tubular joint member 4. Since the role of the concrete leakage prevention cylinder 25 is only to fill a gap at the boundary portion between the adjacent rectangular tubular joint members 4, it is advisable to use a thin plate as much as possible. As such, it is sufficient to attach with an adhesive made of synthetic resin or the like. The thickness of the thin plate constituting the concrete leakage prevention cylinder 25 is set to be equal to or less than a gap formed between the inner surface of the rectangular tube joint member 4 and the outer surface of the hinge fixing joint member 2c. Do not become.

角筒形継手部材４内面とヒンジ固定継手部材２ｃ外面との隙間は、両者の支圧による荷重伝達をスムーズにするためあまり大きくし過ぎることは好ましくないが、ヒンジ固定継手部材２ｃを角筒形継手部材４内に通すときの施工時余裕代として１ｍｍ程度確保することが好ましく、コンクリート漏洩防止用筒２５の厚みは、０．２〜０．３ｍｍ程度以内に抑えることが好ましい。コンクリート漏洩防止用筒２５の材質は、鋼製でも樹脂製でもよい。   The gap between the inner surface of the rectangular tube-shaped joint member 4 and the outer surface of the hinge-fixed joint member 2c is not preferably excessively large in order to make the load transmission by both bearings smooth, but the hinge-fixed joint member 2c has a rectangular tube shape. It is preferable to secure about 1 mm as a margin for construction when passing through the joint member 4, and the thickness of the concrete leakage preventing cylinder 25 is preferably suppressed to about 0.2 to 0.3 mm. The material of the concrete leakage prevention cylinder 25 may be made of steel or resin.

また、本発明を適用したセグメント連結構造は、例えば図１３〜図１５に示すように継手板を省略してもよい。かかる場合には、角筒形継手部材４をコンクリート製のセグメント本体８に対して図１４に示すように直接的に取り付けることになる。かかる場合においても、角筒形継手部材４につき、周方向左側に位置するセグメント本体８と周方向右側に位置するセグメント本体８との間で交互に固着させ、セグメント本体８の連結時においてこれらが図１３に示すように嵌合可能となるように配設する。   Moreover, the segment connection structure to which the present invention is applied may omit the joint plate as shown in FIGS. In such a case, the rectangular tubular joint member 4 is directly attached to the concrete segment body 8 as shown in FIG. Even in such a case, the rectangular tubular joint member 4 is alternately fixed between the segment main body 8 located on the left side in the circumferential direction and the segment main body 8 located on the right side in the circumferential direction. As shown in FIG. 13, it arrange | positions so that fitting is possible.

この角筒形継手部材４をコンクリート製のセグメント本体８に対して取り付ける際には、該角筒形継手部材４にアンカー筋１７を突設し、このアンカー筋１７とセグメント本体８に中詰されたコンクリート１８との間に付着力により、角筒形継手部材４をセグメント本体８に固定するようにしてもよい。   When the rectangular tubular joint member 4 is attached to the concrete segment main body 8, anchor bars 17 project from the square tubular joint member 4, and the anchor bars 17 and the segment main body 8 are filled. The square tubular joint member 4 may be fixed to the segment body 8 by an adhesive force with the concrete 18.

また、本発明を適用したセグメント連結構造は、図１６、図１７に示すように、角筒形継手部材４につき、それぞれの両端縁又は一端縁にガイド傾斜面２２を形成し、角筒形継手部材４が基端部４６から先端にかけて先細りになるように設けてもよい。即ち、この角筒形継手部材４の側面においてテーパを形成しておくことにより、対向する角筒形継手部材４を互いに近接させるとき、傾斜面２２がガイドとなって位置ずれを自動的に矯正しながら嵌合でき、容易に正規の位置に嵌合させることができる。   In addition, as shown in FIGS. 16 and 17, the segment connecting structure to which the present invention is applied is formed by forming the guide inclined surface 22 at each end edge or one end edge of each square tube joint member 4, The member 4 may be provided so as to taper from the proximal end portion 46 to the distal end. That is, by forming a taper on the side surface of the rectangular tubular joint member 4, when the opposing rectangular tubular joint members 4 are brought close to each other, the inclined surface 22 serves as a guide to automatically correct the positional deviation. Can be fitted while being easily fitted in a proper position.

本発明は、トンネル覆工用のセグメントのほか、ボックスカルーバートなどを構成するフラットなセグメントの継手部に適用でき、トンネルのように水平方向に延長する構造物だけではなく、図１９に示すようにセグメントを鉛直方向に組み合わせて橋脚・サイロ・土留めなどの構造物にも適用することができる。また、実施形態を適宜設計変更して実施することは構わない。例えば、角筒形継手部材４は四角形断面に限定されるものではなく、これに挿入するヒンジ固定継手部材２が角筒形継手部材４の内面に係合して回転が阻止される構造であればよい。また、ヒンジ固定継手部材２の断面形状も、前記条件を満たせばＨ形断面や箱断面形状に限らない。   The present invention can be applied not only to a tunnel lining segment but also to a joint portion of a flat segment that constitutes a box culvert, etc. As shown in FIG. It is also possible to apply it to structures such as piers, silos and earth retaining by combining the segments in the vertical direction. In addition, the design of the embodiment may be changed as appropriate. For example, the rectangular tubular joint member 4 is not limited to a rectangular cross section, and the hinge fixing joint member 2 inserted therein is engaged with the inner surface of the rectangular tubular joint member 4 to prevent rotation. That's fine. Moreover, the cross-sectional shape of the hinge fixing joint member 2 is not limited to the H-shaped cross section or the box cross-sectional shape as long as the above conditions are satisfied.

図２に示すタイプの２つのセグメント８ａをセグメント継手において連結した継手部分の模型を製作し、継手曲げ試験を実施した。セグメント全幅長さ４００ｍｍ，桁高１６０ｍｍのセグメントに対して、１つの長さが１００ｍｍである角筒形継手部材４を片方のセグメント継手に２箇所交互に取り付け、角筒形継手部材４内面に沿うように高さ１４８ｍｍのＨ形鋼を利用したヒンジ固定継手部材２ａを挿入した試験体とした。   A model of a joint portion in which two segments 8a of the type shown in FIG. 2 are connected by a segment joint was manufactured, and a joint bending test was performed. For a segment having a total segment length of 400 mm and a digit height of 160 mm, one rectangular tube joint member 4 having a length of 100 mm is alternately attached to one segment joint at two locations, along the inner surface of the square tube joint member 4 Thus, it was set as the test body which inserted the hinge fixed joint member 2a using the H-section steel of height 148mm.

当該試験体に最大荷重が現れるまで曲げ荷重を与え、継手部の抵抗機構を調べたところ、ヒンジ固定継手部材２ａとしてのＨ形鋼のフランジ圧縮、角筒形継手部材４のフランジの引張りで曲げ荷重に耐え、セグメント全幅に渡って各部材が曲げに対して有効に抵抗することが判明したため、下記の比較例として説明する従来のセグメントの継手構造のように、局所的に配置された継手部材における局所的な部位の板厚を増大化しなければならない方法とは異なり、本発明の連結構造では、セグメント本体と同程度の高い曲げ耐力を発揮するセグメント継手が可能であることを確認した。   Bending load was applied until the maximum load appeared on the test body, and the resistance mechanism of the joint was examined. Bending by flange compression of H-shaped steel as hinge fixing joint member 2a and tension of flange of square tube joint member 4 Since it was found that each member can withstand the load and effectively resists bending over the entire width of the segment, the joint member is locally arranged like the conventional segment joint structure described as a comparative example below. Unlike the method that requires increasing the thickness of the local portion in the above, it has been confirmed that the joint structure of the present invention enables a segment joint that exhibits a bending strength as high as that of the segment body.

（比較例）
セグメントの継手板相互をボルト・ナットにより接合する従来のボルト接合によるセグメント継手とする場合で、本発明の実施例のセグメント８ａと同等の桁高、及び同等の曲げ耐荷重が必要であると仮定して設計した場合、ＪＩＳ規定の材質１０．９（引張り強度１０００Ｎ／ｍｍ２，耐力９００Ｎ／ｍｍ２）、Ｍ２４のボルトを使用したとしても、４００ｍｍ幅のセグメントで継手板に接合ボルトが４本以上必要となる。
また、通常の中口径のトンネルで使用される１ｍから１．２ｍ程度のセグメント幅においては、継手板に１０本から１２本（通常、セグメント相互を接合する場合、継手板における接続ボルト本数は高々４本程度である。）の接続ボルトが必要になり、作業能率が落ち、コストアップとなる。 (Comparative example)
It is assumed that the segment joint plate is a segment joint by conventional bolt joining in which the joint plates of the segments are joined by bolts and nuts, and that the same digit height and the same bending load resistance as the segment 8a of the embodiment of the present invention are required. JIS-designated material 10.9 (tensile strength 1000 N / mm 2 , yield strength 900 N / mm 2 ), even if M24 bolts are used, there are 4 joint bolts on the joint plate with 400 mm wide segments This is necessary.
In addition, in the segment width of about 1m to 1.2m used in a normal tunnel having a medium diameter, 10 to 12 joint plates (usually, when connecting segments to each other, the number of connecting bolts on the joint plate is at most). Connecting bolts of about 4) is required, which reduces work efficiency and increases costs.

実施形態に係るセグメントの連結構造において、角筒形継手部材にＨ形断面ヒンジ固定継手部材を挿入する工程の斜視図である。In the segment connection structure according to the embodiment, it is a perspective view of a process of inserting an H-shaped cross-section hinge fixed joint member into a rectangular tube-shaped joint member. 角筒形継手部材にＨ形断面ヒンジ固定継手部材を挿入した後の斜視図である。It is a perspective view after inserting the H-shaped hinge fixing joint member into the rectangular tube-shaped joint member. 他の実施形態を示し、角筒形継手部材に箱形断面ヒンジ固定継手部材を挿入した後の斜視図である。FIG. 6 is a perspective view after showing another embodiment and inserting a box-shaped cross-section hinge fixing joint member into a rectangular tubular joint member. （ａ）は、側面蓋を箱形断面ヒンジ固定継手部材に取り付けた後の斜視図、（ｂ）は正面図、（ｃ）は、（ｂ）のＡ−Ａ断面図である。(A) is a perspective view after attaching a side cover to a box-shaped cross-section hinge fixed joint member, (b) is a front view, and (c) is an AA cross-sectional view of (b). （ａ）は、側面蓋をＨ形断面ヒンジ固定継手部材に取り付けた後の斜視図、（ｂ）は正面図、（ｃ）は、（ｂ）のＢ−Ｂ断面図である。(A) is a perspective view after attaching a side cover to an H-shaped cross-section hinge fixed joint member, (b) is a front view, and (c) is a BB cross-sectional view of (b). 側面蓋をヒンジ固定継手部材に取り付け、角筒形継手部材に挿入した後の斜視図である。It is a perspective view after attaching a side cover to a hinge fixed joint member, and inserting in a square tube-shaped joint member. 側面蓋を取り付ける場合に、角筒形継手部材の端面にボルト用めじ切り孔を設けた斜視図である。When attaching a side cover, it is a perspective view which provided the screw hole for bolts in the end surface of a square tube-shaped joint member. 角筒形継手部材に止水材取り付け用溝を加工した場合の斜視図である。It is a perspective view at the time of processing the groove | channel for water-stopping material attachment in a square cylinder coupling member. 継手板に止水材取り付け用溝を加工した場合の斜視図である。It is a perspective view at the time of processing the groove for water stop material attachment in a joint board. 箱形断面ヒンジ固定継手部材に止水材取り付け用溝を加工した場合の斜視図である。It is a perspective view at the time of processing the groove for water-stop material attachment in a box-shaped cross-section hinge fixed joint member. Ｈ形断面ヒンジ固定継手部材に止水材取り付け用溝を加工した場合の斜視図である。It is a perspective view at the time of processing the groove for water-stop material attachment in the H-shaped hinge fixing joint member. 一方のセグメントに１つの係合部材を取り付け、他方のセグメントに２つの係合部材を取り付けた例の斜視図である。It is a perspective view of the example which attached one engaging member to one segment, and attached two engaging members to the other segment. 継手板を用いないセグメントにおいて、角筒形継手部材に箱形断面ヒンジ固定継手部材を挿入した態様の斜視図である。It is a perspective view of the aspect which inserted the box-shaped cross-section hinge fixed joint member in the square tube-shaped joint member in the segment which does not use a joint board. 継手板を用いないセグメントへの角筒形継手部材の取り付け態様を示す斜視図である。It is a perspective view which shows the attachment aspect of the square tube-shaped coupling member to the segment which does not use a coupling board. 継手板を用いないセグメントへの角筒形継手部材の取り付け態様を示す上面図である。It is a top view which shows the attachment aspect of the square tube-shaped coupling member to the segment which does not use a coupling board. 端部にガイド傾斜面を設けた角筒形継手部材へＨ形断面ヒンジ固定継手部材を挿入する工程の斜視図である。It is a perspective view of the process of inserting an H-shaped cross-section hinge fixing joint member into a rectangular tube-shaped joint member provided with a guide inclined surface at the end. 図１６の角筒形継手部材にＨ形断面ヒンジ固定継手部材を挿入した後の斜視図である。FIG. 17 is a perspective view after an H-shaped cross-section hinge fixing joint member is inserted into the rectangular tubular joint member of FIG. 16. セグメント幅長さよりも長いヒンジ固定継手部材をリング状の軌跡に沿って等角度間隔をおいて配置し、セグメント継手両端部に１つずつの角筒形継手部材を有するセグメントにおける角筒形継手部材にヒンジ固定継手部材を挿入するときの説明図である。A rectangular tubular joint member in a segment in which hinge fixing joint members longer than the segment width length are arranged at equiangular intervals along a ring-shaped locus, and one square tubular joint member is provided at each end of the segment joint. It is explanatory drawing when inserting a hinge fixing joint member into. 図１８においてセグメントを挿入した後の構造物全体を示す斜視図である。It is a perspective view which shows the whole structure after inserting a segment in FIG. セグメント幅長さよりも長いヒンジ固定継手部材を平面状に所定の間隔で配置し、セグメント継手両端部に１つずつの角筒形継手部材を有するセグメントを挿入するときの図であるIt is a figure when the hinge fixing joint member longer than segment width length is arrange | positioned at a predetermined | prescribed space | interval in planar shape, and the segment which has one square tube-shaped joint member in each segment joint both ends is inserted. 図２０においてセグメントを挿入した後の構造物全体を示す斜視図である。It is a perspective view which shows the whole structure after inserting a segment in FIG. ヒンジ固定継手部材を隅角部に配置した場合の斜視図である。It is a perspective view at the time of arrange | positioning a hinge fixing joint member to a corner part. 隅角部ジョイント（隅角部の連結材）として隅角部に配置するヒンジ固定継手部材の他の形態を示すものであって、ヒンジ固定継手部材が、Ｈ形断面の鋼材のウェブにＴ形断面部材を溶接にて取り付けた構造形態の斜視図である。Another embodiment of a hinge fixing joint member arranged at a corner portion as a corner joint (a connecting member of the corner portion) is shown, and the hinge fixing joint member is formed in a T-shaped steel web having an H-shaped cross section. It is a perspective view of the structure form which attached the cross-section member by welding. 角筒形継手部材がセグメント継手両端部に１つずつ取り付いている場合の斜視図であうる。It can be a perspective view in the case where one rectangular tubular joint member is attached to each end of the segment joint. （ａ）はセグメントのスキンプレートの周方向の端部を張り出すように拡張して張り出し部を設け、その張り出し部を角筒形継手部材のフランジを兼用した場合の分解図、（ｂ）は組み立て図である。(A) is an exploded view in which the end of the skin plate of the segment is extended so as to overhang to provide an overhang, and the overhang is also used as a flange of a rectangular tubular joint member, (b) FIG. （ａ）は角筒形継手部材の端面に止水材取り付け用の溝を加工した場合の斜視図、（ｂ）はその一部の拡大斜視図、（ｃ）は（ａ）のＣ−Ｃ線断面図である。(A) is a perspective view when a groove for attaching a water stop material is machined on the end face of a rectangular tubular joint member, (b) is an enlarged perspective view of a part thereof, and (c) is a CC of (a). It is line sectional drawing. コンクリート漏洩防止用筒を角筒形継手部材に取り付けた状態を示す斜視図である。It is a perspective view which shows the state which attached the cylinder for concrete leakage prevention to the square cylinder joint member. 第一の発明におけるセグメントを組み合わせてトンネルを形成した場合の斜視図である。It is a perspective view at the time of forming a tunnel by combining the segments in the first invention. 構造物の軸方向端部において、セグメントの抜け出し防止用にヒンジ固定継手部材と角筒形継手部材とをボルトにて連結した場合の斜視図である。It is a perspective view at the time of connecting a hinge fixed joint member and a square tube-shaped joint member with a volt | bolt in the axial direction edge part of a structure for prevention of a segment coming out. 図２２を左側面から見た側面図である。It is the side view which looked at FIG. 22 from the left side surface. 図２５の形態のセグメントを用いて図１９に示すような構造物を構築した場合の斜視図である。It is a perspective view at the time of constructing a structure as shown in FIG. 19 using the segment of the form of FIG. 本発明のセグメントの連結構造の施工方法を説明する図である。It is a figure explaining the construction method of the connection structure of the segment of this invention. 本発明のセグメントの連結構造の施工方法を説明する図である。It is a figure explaining the construction method of the connection structure of the segment of this invention. 本発明のセグメントの連結構造の施工方法を説明する図である。It is a figure explaining the construction method of the connection structure of the segment of this invention.

符号の説明Explanation of symbols

１ 継手板
２ ヒンジ固定継手部材
２ａ Ｈ形断面ヒンジ固定継手部材
２ｂ 箱形断面ヒンジ固定継手部材
２ｃ セグメント幅長さ寸法よりも長いヒンジ固定継手部材
２ｄ 隅角部ジョイント（隅角部の連結材）としてのヒンジ固定継手部材
２ｅ Ｈ形断面の鋼材のウェブにＴ形断面部材が取り付けられたヒンジ固定継手部材
３ ヒンジ継手部
４ 角筒形継手部材
５ 側面蓋
６ 箱形断面ヒンジ固定継手部材の中空部
７ 止水材取り付け用溝
８ セグメント本体
８ａ セグメント
８ｂ セグメント継手両端部に角筒形継手部材を１つずつ有するセグメント
８ｃ セグメント幅長さが他のセグメント幅の半分の長さのセグメント
８ｄ 平版状の平板セグメント
９ Ｈ形断面ヒンジ固定継手部材のフランジ
１０ 箱形断面ヒンジ固定継手部材の上下面
１１ 角筒形継手部材の前面
１２ 側面蓋取り付け用ボルト孔
１３ 側面蓋のボルト挿入孔
１４ ボルトまたはビス
１６ 座刳り
１７ アンカー筋
１８ 中詰コンクリート
１９ 溶接
２０ 境目
２１ ウエブ
２２ ガイド傾斜面
２３ 角筒形継手部材のフランジを兼用するスキンプレート
２４ 角筒形継手部材構成部材
２５ コンクリート漏洩防止用筒
２６ 角筒型継手部材フランジ部
２７ セグメントリング
２８ 構造物
２９ Ｈ形断面形状の部材のウェブ
３０ Ｔ形断面形状の部材の脚部３０ DESCRIPTION OF SYMBOLS 1 Joint board 2 Hinge fixed joint member 2a H-shaped cross-section hinge fixed joint member 2b Box-shaped cross-section hinge fixed joint member 2c Hinge fixed joint member 2d longer than segment width length dimension Corner joint (connecting material of corner section) Hinge fixing joint member 2e Hinge fixing joint member 3 in which a T-shaped cross-section member is attached to an H-shaped steel web. Hinge joint portion 4 Square tubular joint member 5 Side cover 6 Box-shaped cross-section hinge fixing joint hollow Part 7 Water stop material mounting groove 8 Segment main body 8a Segment 8b Segment 8c having one square tubular joint member at each end of the segment joint Segment 8d Segment 8d with half the width of the other segment Flat segment 9 flange H of the H-shaped hinge fixing joint member 10 upper and lower surfaces 11 of the box-shaped hinge fixing joint member Surface 12 Side cover mounting bolt hole 13 Side cover bolt insertion hole 14 Bolt or screw 16 Counterbore 17 Anchor bar 18 Filled concrete 19 Welding 20 Boundary 21 Web 22 Guide inclined surface 23 Also used as a flange of a rectangular tubular joint member Skin plate 24 Square tube joint member constituting member 25 Concrete leakage prevention tube 26 Square tube joint member flange portion 27 Segment ring 28 Structure 29 Web 30 of H-shaped cross-section member Leg 30 of T-shaped cross-section member

Claims (13)

複数のセグメントを周方向と軸方向に結合して構築した構造物における前記セグメントの連結構造であって、
矩形状の中空孔が形成された角筒形継手部材が前記セグメント本体の周方向の両端部に沿って固着されてなるとともに、その角筒形継手部材は、周方向に隣接するセグメント間で直列に連続可能となるように互いに軸方向の配置が調整されて１以上配設されてなり、
前記角筒形継手部材を直列に連続させることにより互いに接続された中空孔内にヒンジ固定継手部材が挿入されてなること
を特徴とするセグメントの連結構造。 A connecting structure of the segments in a structure constructed by connecting a plurality of segments in the circumferential direction and the axial direction,
A rectangular tubular joint member in which a rectangular hollow hole is formed is fixed along both circumferential ends of the segment body, and the rectangular tubular joint member is connected in series between the adjacent segments in the circumferential direction. One or more axial arrangements are adjusted so as to be continuous with each other,
A segment connecting structure characterized in that a hinge-fixing joint member is inserted into hollow holes connected to each other by connecting the rectangular tube-shaped joint members in series. 複数のセグメントを周方向と軸方向に結合して構築した構造物における前記セグメントの連結構造であって、
矩形状の中空孔が形成された角筒形継手部材が前記セグメント本体の周方向の両端部に沿って固着されてなるとともに、その角筒形継手部材は、周方向に隣接するセグメント間で嵌合可能となるように互いに軸方向の配置が調整されて１以上配設されてなり、
前記角筒形継手部材を嵌合させることにより互いに接続された中空孔内にヒンジ固定継手部材が挿入されてなること
を特徴とするセグメントの連結構造。 A connecting structure of the segments in a structure constructed by connecting a plurality of segments in the circumferential direction and the axial direction,
A rectangular tubular joint member in which a rectangular hollow hole is formed is fixed along both circumferential ends of the segment body, and the rectangular tubular joint member is fitted between the adjacent segments in the circumferential direction. One or more axial arrangements are adjusted so that they can be combined,
A segment connecting structure characterized in that a hinge fixing joint member is inserted into a hollow hole connected to each other by fitting the rectangular tube joint member. 前記角筒形継手部材は、前記セグメント本体に対して溶接またはボルトで固着され、又はコンクリートで構成される前記セグメントの端部にアンカー筋で固着されてなること
を特徴とする請求項１または２に記載のセグメントの連結構造。 The square tube-shaped joint member is fixed to the segment body by welding or bolts, or is fixed to an end portion of the segment made of concrete by an anchor bar. The segment connection structure described in 1. 前記ヒンジ固定継手部材は、Ｈ形断面部材又は箱形断面部材であり、前記接続された中空孔の内面に係合可能とされていること
を特徴とする請求項１〜３の何れか１項に記載のセグメントの連結構造。 The hinge fixing joint member is an H-shaped cross-section member or a box-shaped cross-section member, and can be engaged with an inner surface of the connected hollow hole. The segment connection structure described in 1. 前記ヒンジ固定継手部材が前記構造物の軸方向に複数のセグメントに跨って、当該セグメントの角筒形継手部材の中空孔内に挿入されていること
を特徴とする請求項１〜４の何れか１項に記載のセグメントの連結構造。 The said hinge fixing joint member is inserted in the hollow hole of the rectangular tube-shaped joint member of the said segment ranging over the some segment in the axial direction of the said structure. 2. The segment connection structure according to item 1. 前記ヒンジ固定継手部材が矩形状セグメントリングにおける周方向の隅角部に配置されて、隅角部の連結材とされていること
を特徴とする請求項１〜５の何れか１項に記載のセグメントの連結構造。 The said hinge fixing joint member is arrange | positioned at the corner part of the circumferential direction in a rectangular segment ring, and is made into the connection material of a corner part, The Claim 1 characterized by the above-mentioned. Segment connection structure. 前記角筒形継手部材のフランジを兼ねた張り出し部が、セグメント本体のスキンプレートに一体に設けられていること
を特徴とする請求項１〜６何れか１項に記載のセグメントの連結構造。 The segment connecting structure according to any one of claims 1 to 6, wherein an overhanging portion that also serves as a flange of the rectangular tubular joint member is provided integrally with a skin plate of the segment body. 前記ヒンジ固定継手部材は、何れか一の端部に蓋が取り付けられてなり、前記接続された中空孔内に挿入された場合には、前記蓋の外面と前記セグメント本体の側面との間で平面が形成され、
さらに前記蓋は、角筒形継手部材に定着可能とされていること
を特徴とする請求項１〜７の何れか１項に記載のセグメントの連結構造。 The hinge fixing joint member has a lid attached to any one end, and when inserted into the connected hollow hole, between the outer surface of the lid and the side surface of the segment body. A plane is formed,
The segment connecting structure according to any one of claims 1 to 7, wherein the lid is fixable to a rectangular tube joint member. 挿入すべき中空孔の接続位置に対応した前記ヒンジ固定継手部材上の外周面において、又は前記角筒形継手部材の軸方向に沿った外周面において、又は前記セグメント本体端面における嵌合すべき相手側の角筒形継手部材が当接可能な面において、止水材が配設されてなること
を特徴とする請求項１〜８の何れか１項に記載のセグメントの連結構造。 On the outer peripheral surface on the hinge fixing joint member corresponding to the connection position of the hollow hole to be inserted, or on the outer peripheral surface along the axial direction of the rectangular tubular joint member, or on the end face of the segment body The segment connection structure according to any one of claims 1 to 8, wherein a water blocking material is disposed on a surface on which the side rectangular tubular joint member can abut. 前記接続された中空孔内に挿入されたＨ形断面部材としてのヒンジ固定継手部材のフランジとウエブで囲まれる空間部、または箱形断面部材の中空孔内にコンクリートが打設されてなることを特徴とする請求項１〜９の何れか１項に記載のセグメントの連結構造。   Concrete is cast in the space surrounded by the flange and web of the hinge fixed joint member as the H-shaped cross-section member inserted into the connected hollow hole, or in the hollow hole of the box-shaped cross-section member. The segment connection structure according to claim 1, wherein the segment connection structure is characterized in that 前記角筒形継手部材端部に薄板からなる筒を角筒形継手部材内面に固着し角筒形継手部材４から飛び出させること
を特徴とする請求項１〜１０の何れか１項に記載のセグメントの連結構造。 11. The tube according to claim 1, wherein a cylinder made of a thin plate is fixed to an inner surface of a rectangular tube joint member and protrudes from the rectangular tube joint member 4 at an end of the rectangular tube joint member. Segment connection structure. 前記角筒形継手部材は、前記セグメント本体に固着される基端部から先端にかけて先細になるように形成されてなること
を特徴とする請求項１〜１１の何れか１項に記載のセグメントの連結構造。 The segmented tube according to any one of claims 1 to 11, wherein the rectangular tubular joint member is formed so as to taper from a base end portion fixed to the segment body to a tip end. Linked structure. 箱形断面のヒンジ固定継手部材が、角鋼管などの形鋼単独、またはＣ形鋼やアングル材の組み合わせからなることを特徴とする請求項１〜１２の何れか１項記載のセグメントの連結構造。   13. The segment connection structure according to claim 1, wherein the hinge-fixed joint member having a box-shaped cross section is made of a single shape steel such as a square steel pipe, or a combination of a C-shape steel and an angle member. .
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009121058A (en) * 2007-11-12 2009-06-04 Taisei Corp Segment connecting structure and tunnel

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KR101804071B1 (en) * 2016-11-21 2018-01-11 현대건설주식회사 Apparatus and method for connecting concrete floating structure in sea

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JPS6184797U (en) * 1984-11-05 1986-06-04
JPH05340192A (en) * 1992-06-11 1993-12-21 Minoru Yamamoto Segment for tunnel
JPH07269297A (en) * 1994-03-29 1995-10-17 Sumitomo Metal Ind Ltd Joint for composite segment
JP2001227297A (en) * 2000-02-18 2001-08-24 Nippon Steel Corp Flaking protecting structure for tunnel lining

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JPS6184797U (en) * 1984-11-05 1986-06-04
JPH05340192A (en) * 1992-06-11 1993-12-21 Minoru Yamamoto Segment for tunnel
JPH07269297A (en) * 1994-03-29 1995-10-17 Sumitomo Metal Ind Ltd Joint for composite segment
JP2001227297A (en) * 2000-02-18 2001-08-24 Nippon Steel Corp Flaking protecting structure for tunnel lining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009121058A (en) * 2007-11-12 2009-06-04 Taisei Corp Segment connecting structure and tunnel

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