JPH08232584A - Segment having hook joint - Google Patents
Segment having hook jointInfo
- Publication number
- JPH08232584A JPH08232584A JP7040583A JP4058395A JPH08232584A JP H08232584 A JPH08232584 A JP H08232584A JP 7040583 A JP7040583 A JP 7040583A JP 4058395 A JP4058395 A JP 4058395A JP H08232584 A JPH08232584 A JP H08232584A
- Authority
- JP
- Japan
- Prior art keywords
- segment
- fitting
- metal fitting
- joint
- male
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はフック継手をもつ、シー
ルドトンネル覆工用セグメントに係るものである。FIELD OF THE INVENTION The present invention relates to a shield tunnel lining segment having a hook joint.
【０００２】[0002]
【従来の技術】従来のボルト継手を持つセグメントは、
相隣るセグメントを突き合わせて、ボルトによって結合
した連結構造が普通であった。2. Description of the Related Art Segments with conventional bolt joints are
A connecting structure in which adjacent segments are butted and joined by bolts is common.
【０００３】[0003]
【発明が解決しようとする課題】前記ボルト継手をもつ
セグメントは、（イ）ボルトボックスがあるので、ボル
トボックスの充填処理や二次覆工を必要とする。（ロ）
セグメント内面に継手金物が露出しているので、防錆処
理が必要である。（ハ）ボルト継手はボルト締結に多く
の時間を要し、セグメント組立には熟練工を必要とし
た。またセグメント組立の自動化や急速施工に不利であ
った。（ニ）更に継手金物の材料、製作費のセグメント
製造費に占める率が大きく、コストダウンを阻害する要
因となっていた。Since the segment having the above-mentioned bolt joint has (a) bolt box, it is necessary to fill the bolt box and carry out secondary lining. (B)
Since the metal fittings are exposed on the inner surface of the segment, rustproofing is necessary. (C) A bolt joint requires a lot of time to fasten the bolt, and a skilled worker is required to assemble the segment. It was also disadvantageous for automation of segment assembly and rapid construction. (D) Further, the ratio of the material for joint fittings and the manufacturing cost to the segment manufacturing cost is large, which has been a factor to prevent cost reduction.
【０００４】本発明は前記従来技術の有する問題点に鑑
みて提案されたもので、その目的とするところは、施工
性が優れ、セグメントリングの組立が効率よく行なわ
れ、剛性や強度上合理的で、しかも経済性の優れたフッ
ク継手をもつセグメントを提供する点にある。The present invention has been proposed in view of the above-mentioned problems of the prior art. The object of the present invention is that the workability is excellent, the segment ring is efficiently assembled, and the ratio and rigidity are rational. The point is to provide a segment with a hook joint that is highly economical.
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係るフック継手をもつセグメントは、シー
ルドトンネル覆工用セグメントにおけるトンネル軸に平
行な継手面に、切羽方向に指向して漸次拡開した傾斜嵌
合部を有する雌金具と、切羽の反対方向に指向して延び
る雄金具とよりなる継手金具を装着し、前記セグメント
をリング状に組み立てるに当って前記雌金具を雄金具に
嵌入、楔止してフック継手を構成するように構成されて
いる。In order to achieve the above-mentioned object, a segment having a hook joint according to the present invention is directed in a cutting face direction on a joint surface parallel to a tunnel axis in a shield tunnel lining segment. A female fitting having a gradually fitting widened inclined fitting portion and a fitting fitting made of a male fitting extending in the direction opposite to the face are mounted, and the female fitting is fitted to the male fitting in assembling the segment into a ring shape. It is configured to be fitted into and hooked to form a hook joint.
【０００６】請求項２の発明は、前記フック継手におけ
る雌金具をコの字型金具より構成し、前記雄金具をＬ字
金具より構成したものである。請求項３の発明は、前記
フック継手を同種のＬ字金具で構成したものである。請
求項４の発明は、前記フック継手における雌金具と雄金
具をセグメント継手面で嵌合させるのに必要な継手面の
溝、または凹部の全間隔Ｄが、 Ｄ≧（Ｂm −ｔm ）sin θ＋ｔf ＋ｔm （ここにＢm ，ｔm は夫々雄金具の嵌合部の外側長と嵌
合部の厚さ、ｔf は雌金具の厚さ、θは前記金具の嵌合
部の傾斜角）となるように構成されたものである。According to a second aspect of the present invention, the female metal fitting in the hook joint is a U-shaped metal fitting, and the male metal fitting is an L-shaped metal fitting. According to a third aspect of the present invention, the hook joint is formed of an L-shaped metal fitting of the same type. According to a fourth aspect of the present invention, the total distance D between the groove or the recess of the joint surface necessary for fitting the female metal fitting and the male metal fitting in the hook joint on the segment joint surface is D ≧ (B m −t m ). sin θ + t f + t m (where B m and t m are the outer length and thickness of the fitting portion of the male fitting, t f is the thickness of the female fitting, and θ is the fitting portion of the fitting). Inclination angle).
【０００７】[0007]
【作用】本発明に係るセグメントは前記したように、ト
ンネル軸に平行なセグメント継手面に、切羽方向に指向
して漸次拡開した傾斜嵌合部を有する雌金具と、切羽の
反対方向に指向して、延びる雄金具とよりなる継手金具
を装着したので、前記セグメントの接合時、同セグメン
トの雄金具を同セグメントに接合されるセグメントの雌
金具の傾斜嵌合部に嵌入することによって、雄金具の傾
斜面が雌金具の切羽方向に拡開した傾斜嵌合部における
傾斜面に楔合することにより、前記雌雄両金具によって
ボルト類の接合金物締付け作業を要することなく、前記
両セグメントが確実に接合される。As described above, the segment according to the present invention has a female fitting having an inclined fitting portion that gradually expands toward the face of the segment on the segment joint surface parallel to the tunnel axis, and directs in the direction opposite to the face of the face. Then, since the fitting metal fitting made of the extending male metal fitting is attached, by fitting the male metal fitting of the same segment to the slant fitting part of the female metal fitting of the segment to be joined to the same segment when joining the segments, The slanted surface of the metal fitting is wedged with the slanted surface of the slanted fitting portion of the female metal fitting that is widened in the direction of the cutting face, so that both male and female metal fittings do not require the operation of tightening the metal fittings for the bolts, and the both segments are securely connected. To be joined to.
【０００８】この際、前記雌金具と雄金具の嵌合部分に
おける各金具の傾斜を僅かに食い違わせることによっ
て、同両金具の嵌合部にスプリング効果を発揮させ、両
金具の接触を確実にすることができ、両金具間に引張力
が作用するとき、遊びを生じることなく張力を確実に伝
達することができる。またセグメントを組み立てたの
ち、前記金具のまわりに注入材を充填することによっ
て、同金具はセグメントの鉄筋と同様に挙動するため、
引張力はより一層確実に伝達される。At this time, by slightly misaligning the inclinations of the respective metal fittings at the fitting portions of the female metal fittings and the male metal fittings, a spring effect is exerted at the fitting portions of the both metal fittings, and the two metal fittings are surely brought into contact with each other. When the tensile force acts between the two metal fittings, the tension can be reliably transmitted without causing play. Also, after assembling the segment, by filling an injection material around the metal fitting, since the metal fitting behaves like a reinforcing bar of the segment,
The tensile force is transmitted more reliably.
【０００９】請求項２の発明によれば、前記フック継手
において前記雌金具をコの字型金具より構成し、前記雄
金具をＬ字金具より構成したので、セグメント接合時、
Ｌ字金具より構成された同雄金具がコの字型金具より構
成された前記雌金具内にその開口端部より嵌入し、前記
雌雄両金具を容易に嵌合、楔止せしめ、効率よく同両金
具によりセグメントのフック継手を構成することができ
るものである。According to the second aspect of the present invention, in the hook joint, the female metal member is formed by a U-shaped metal member, and the male metal member is formed by an L-shaped metal member.
The male fitting made up of L-shaped fittings is fitted into the female fitting made up of U-shaped fittings from its open end, so that the male and female fittings can be easily fitted and wedged together, so that the same fit can be achieved efficiently. Both metal fittings can form a hook joint for a segment.
【００１０】請求項３の発明は、前記セグメントのフッ
ク継手において、雌金具と雄金具を同種のＬ字金具で構
成したことによって、同一または同種の金具によって継
手を形成できることとなり、金具の製造とセグメント型
枠への金具の設置が同一工程で実施されるので省力化が
図られる。請求項４の発明は、前記雌金具と雄金具をセ
グメント継手面に嵌合させる継手面の溝または凹部の全
間隔Ｄを前記したように、Ｄ≧（Ｂm −ｔm ）sin θ＋
ｔf ＋ｔm とすることによって、（Ｂm ，ｔm ，は夫々
雄金具の外側部の外側長、ｔf は雌金具の厚さ、θは前
記金具の傾斜角）後述のように、セグメント継手面にお
いて前記雌金具と雄金具とを嵌合、係止させることがで
きるものである。According to a third aspect of the present invention, in the hook joint of the segment, the female metal fitting and the male metal fitting are made of L-shaped metal fittings of the same kind, so that the fitting can be formed by the same or the same kind of metal fittings. Since the metal fittings are installed on the segment formwork in the same process, labor saving is achieved. According to the invention of claim 4, as described above, the total distance D of the groove or the recess of the joint surface for fitting the female metal fitting and the male metal fitting to the segment joint surface is D ≧ (B m −t m ) sin θ +
By setting t f + t m , (B m , t m are the outer lengths of the outer parts of the male fittings, t f is the thickness of the female fitting, and θ is the inclination angle of the fitting), as described later, The female fitting and the male fitting can be fitted and locked on the joint surface.
【００１１】[0011]
【実施例】以下、本発明を図示の実施例について説明す
る。図１乃至図４に示す実施例において、Ａはトンネル
覆工用のセグメントで、トンネル軸に平行なセグメント
継手面に設けられた切羽方向に延びる溝状の凹部３に、
同凹部３の一部を掩覆するように頂部片が切羽側に指向
して傾斜し、同頂部片と前記凹部３の側面及び底面に接
する両側片との間に形成され、端部に開口部を有する前
記凹部３の一部を掩覆する掩蓋片に形成された雌金具１
と、切羽の反対方向に指向して延びる傾斜係止面を有す
る雄金具２がセグメント継手面の凹部３に装着されてい
る。図中４及び５はセグメントＡの切羽に対向する面に
設けられ、トンネル軸方向に相隣る次位のリングセグメ
ントに対する接続用ほぞ、及び長ボルト孔である。また
６は前記継手金具をセグメントに定着するアンカー筋、
７は雄金具２の端部に曲成されたコンクリートセグメン
トに対するアンカー部である。The present invention will be described below with reference to the illustrated embodiments. In the embodiment shown in FIGS. 1 to 4, A is a segment for tunnel lining and is provided in a groove-shaped concave portion 3 provided in a segment joint surface parallel to the tunnel axis and extending in a cutting face direction.
The top piece is inclined toward the face of the face so as to cover a part of the recess 3, and is formed between the top piece and both side pieces in contact with the side surface and the bottom surface of the recess 3 and has an opening at the end. Female metal fitting 1 formed on a covering lid piece for covering a part of the concave portion 3 having a portion
A male fitting 2 having an inclined locking surface extending in the direction opposite to the face is mounted in the recess 3 of the segment joint surface. In the figure, 4 and 5 are a tenon for connection to the next ring segment adjacent to the face of the segment A facing the face, and a long bolt hole for connection to the next ring segment. In addition, 6 is an anchor streak for fixing the joint fitting to the segment,
Reference numeral 7 is an anchor portion for the concrete segment bent at the end of the male fitting 2.
【００１２】而して前記雄金具２及び雌金具１をセグメ
ント継手面で嵌合させるのに必要な継手部の凹部３また
は溝の全間隔をＤとすると図９に示すようにＤ≧（Ｂm
−ｔm ）sin θ＋ｔf ＋ｔm がフック継手が成立するた
めの条件となる。図６乃至図８は本発明の他の実施例を
示し、前記雌金具と雄金具を同種のＬ字金具で構成した
フック継手を示し、前記実施例と均等部分には同一符号
が付されている。Assuming that the total space between the concave portions 3 or grooves of the joint portion required to fit the male fitting 2 and the female fitting 1 on the segment joint surface is D, as shown in FIG. 9, D ≧ (B m
-T m) sin θ + t f + t m is the condition for the hook joint is established. 6 to 8 show another embodiment of the present invention, showing a hook joint in which the female metal fitting and the male metal fitting are made of L-shaped metal fittings of the same kind, and the same parts as those of the embodiment are designated by the same reference numerals. There is.
【００１３】この際、継手金具は雄金具２と雌金具１を
同一若しくは同種に製造でき、製造、材料管理が容易に
なり、金具は鈑金加工で簡単に作成できる。図中８はモ
ルタル注入孔である。次に前記したフック継手をもつセ
グメントの組立て方について説明する。 （イ） 矩形セグメント（４Ａ＋２Ｂ＋Ｋ）の場合セグ
メントＡの中のインバートセグメントは、セグメント継
手面の両側に雌金具１が配設されたものを使用し、残り
の３ピースのセグメントＡと２ピースのセグメントＢは
一方のセグメント継手面に雄金具２、他方のセグメント
継手面に雌金具１を配置した構成となり、更に残りのセ
グメントＫはセグメント継手面の両側に雄金具２が配設
されている。At this time, the joint metal fitting can be manufactured in the same or the same kind as the male metal fitting 2 and the female metal fitting 1, the manufacturing and material management are facilitated, and the metal fitting can be easily manufactured by sheet metal working. Reference numeral 8 in the drawing denotes a mortar injection hole. Next, a method of assembling the segment having the above-mentioned hook joint will be described. (A) In the case of rectangular segment (4A + 2B + K) For the invert segment in segment A, the one in which the female metal fittings 1 are arranged on both sides of the segment joint surface is used, and the remaining 3 piece segment A and 2 piece segment are used. B has a structure in which a male fitting 2 is arranged on one segment joint surface and a female fitting 1 is arranged on the other segment joint surface, and the remaining segment K has male fittings 2 arranged on both sides of the segment joint surface.
【００１４】前記各セグメントによってリングを組立て
るには先ずインバートセグメントを前に組立てられたセ
グメントリングのセグメントに合わせて取り付ける。こ
の際、リング継手面にはほぞ４があるので、ほぞを嵌合
させるだけで位置決めができる。位置決めができれば通
しボルト９の他、クイックジョイントによってセグメン
トを前に組立てられたセグメントリングに固定する。To assemble a ring with each of the aforementioned segments, the invert segment is first attached to the segment of the previously assembled segment ring. At this time, since the tenon 4 is provided on the ring joint surface, the tenon can be positioned only by fitting the tenon. Once positioned, the segments are fixed to the previously assembled segment ring by means of through bolts 9 as well as quick joints.
【００１５】次いでインバートセグメントに隣接するセ
グメントＡを取付ける。この際、インバートセグメント
の雌金具１のあるセグメント継手面に雄金具２のあるセ
グメント継手面に近接して、金具が嵌合し始めたらセグ
メントをトンネル軸方向にスライドさせて押込む。この
操作とリング継手面のほぞの嵌合によって自づと位置決
めができる。なおこの際、セグメント継手面にもほぞを
設けておくことによって、より確実な位置決めが行なわ
れる。かくしてセグメントの位置決めができると通しボ
ルト９によって、前に組立てられたセグメントリングに
固定する。Next, the segment A adjacent to the invert segment is attached. At this time, the segment joint surface with the female metal fitting 1 of the invert segment is brought close to the segment joint surface with the male metal fitting 2, and when the metal fittings start to be fitted, the segment is slid in the tunnel axial direction and pushed in. By this operation and the fitting of the tenon of the ring joint surface, the positioning can be performed independently. At this time, more reliable positioning is performed by providing a tenon on the segment joint surface. Once the segment is thus positioned, it is secured to the previously assembled segment ring by means of a through bolt 9.
【００１６】次いで第３，第４のセグメントを左右交互
に前記同様の方法で取付ける。また２ピースのセグメン
トＢについても同じ手段で取付ける。最後にＫセグメン
トを挿入することになるが、同セグメントＫには両側継
手面に雄金具２だけが取付けられているだけであるか
ら、同セグメントＫを押し込むだけで雄金具２はセグメ
ントＢの雌金具１に嵌合する。かくしてセグメントＫの
挿入が完了すると通しボルトで締付け、リングの組立が
完了する。（図１０参照） （ロ） 次に等大台形セグメント（台形３ピース＋逆台
形３ピース）を組立てる場合について説明する。Next, the third and fourth segments are alternately attached to the left and right in the same manner as described above. The two pieces of segment B are also attached by the same means. Finally, the K segment is inserted, but since the male fitting 2 is only attached to the joint surfaces on both sides of the segment K, the male fitting 2 is inserted into the female part of the segment B only by pushing the same segment K. Fit the metal fitting 1. Thus, when the insertion of the segment K is completed, it is tightened with the through bolt, and the assembly of the ring is completed. (See FIG. 10) (B) Next, a case of assembling a large-scale trapezoidal segment (trapezoidal 3 pieces + inverted trapezoidal 3 pieces) will be described.
【００１７】台形セグメントはその両側継手面に雌金具
１だけを配置した構成とし、逆台形セグメントの１ピー
スをインバートセグメントとして前に組立てられたリン
グに取付る。同様に他の２ピースの台形セグメントを夫
々の間に逆台形セグメントを挿入できるように所定の間
隔を置いて取付ける。なおこれらの操作は３ピース同時
に行うこともできる。取付に当ってはリング継手面にほ
ぞ４があるので、これを前に組立てられたセグメントリ
ングのほぞに挿入するだけで位置決めができる。かくし
て位置決めが完了すると、通しボルト９によってセグメ
ントを前に組立てられたリングのセグメントに通しボル
ト９によって固定できる。The trapezoidal segment has a structure in which only the female fittings 1 are arranged on both joint surfaces of the trapezoidal segment, and one piece of the inverted trapezoidal segment is attached to the previously assembled ring as an invert segment. Similarly, the other two-piece trapezoidal segments are mounted at predetermined intervals so that an inverted trapezoidal segment can be inserted between them. It should be noted that these operations can be performed simultaneously on three pieces. Since there is a tenon 4 on the ring joint surface for mounting, it can be positioned simply by inserting it into the tenon of the previously assembled segment ring. Once positioned, the through bolt 9 allows the segment to be secured to the previously assembled ring segment by the through bolt 9.
【００１８】逆台形セグメントはセグメント継手面に雄
金具２だけを配置したものであるから、既に取付けが完
了した台形セグメントの間に挿入するだけで取付けが可
能である。なおリング継手面のほぞ４は位置決めを容易
且つ確実にするものである。かくして逆台形セグメント
の挿入が終ると通しボルト９によって締付け、リングの
組立が完了する。Since the inverted trapezoidal segment has only the male fitting 2 arranged on the segment joint surface, the inverted trapezoidal segment can be mounted simply by inserting it between the trapezoidal segments already mounted. The tenon 4 on the ring joint surface facilitates and ensures positioning. Thus, when the inverted trapezoidal segment is completely inserted, the through bolt 9 is tightened to complete the ring assembly.
【００１９】[0019]
【発明の効果】本発明によれば前記したように、セグメ
ントにおけるトンネル軸に平行な継手面に、切羽方向に
指向して漸次拡開した傾斜嵌合部を有する雌金具と、切
羽の反対方向に指向して漸次拡開した傾斜嵌合部を有す
る雌金具と、切羽の反対方向に指向して延びる傾斜係止
面を有する雄金具とよりなる継手金具を装着し、前記雌
金具と雄金具とを嵌合楔止してフック継手を構成するこ
とによって、前記セグメントをリング状に組立てるよう
にしたもので、従来のセグメント継手のようにボルト接
合を不要とし、フック継手が挿入式であるため組立て作
業が簡単で組立て時間も短縮され、自動化等による組立
ての工業化が図られ、施工速度を著しく急速化しうるも
のである。また従来工法のように、セグメント内部にボ
ルトボックス等の金物が露出しないので防錆処理が不要
となり、更にセグメント内面が平滑であるから、二次覆
工なしにトンネル覆工として使用できる。As described above, according to the present invention, a female metal member having an inclined fitting portion that gradually expands in the direction of the cutting face on the joint surface parallel to the tunnel axis in the segment and the direction opposite to the cutting face. A female metal fitting having an inclined fitting portion that gradually expands in the direction of the arrow and a male metal fitting having an inclined locking surface extending in the direction opposite to the face is mounted, and the female metal fitting and the male metal fitting are mounted. The segments are assembled in a ring shape by forming a hook joint by fitting and hooking with each other. Since bolt connection is not required unlike the conventional segment joint, the hook joint is an insertion type. The assembling work is simple, the assembling time is shortened, the assembling is industrialized by automation, and the construction speed can be remarkably increased. Also, unlike the conventional method, the metal parts such as the bolt box are not exposed inside the segment, so that no rust-proofing is required and the inner surface of the segment is smooth, so it can be used as a tunnel lining without secondary lining.
【００２０】更にフック継手の金具の断面積を外部寸法
に比して大きくすることが容易であるから、曲げモーメ
ント及び引張力に抵抗性の大きいセグメント継手を形成
でき、更に前記金具の周囲にモルタル等を注入すること
によって、同金具はセグメントの鉄筋と同様な挙動を
し、セグメントリングの強度、剛性を大きくすることが
できる。Furthermore, since it is easy to increase the cross-sectional area of the metal fitting of the hook joint in comparison with the external dimension, it is possible to form a segment joint having a high resistance to bending moment and tensile force, and further, the mortar is provided around the metal fitting. By injecting etc., the metal fitting behaves similarly to the reinforcing bar of the segment, and the strength and rigidity of the segment ring can be increased.
【００２１】更にまたフック継手を構成する前記雄金具
と雌金具の傾斜を互いにくい違わせることによって両金
具の嵌合が強固になり、かくしてセグメントリングの剛
性が増大し、リングの組立が容易に且つ確実に行われ
る。請求項２の発明は前記雌金具をコの字型金具より構
成し、雄金具をＬ字金具より構成することによって両者
の楔合を容易ならしめ、フック継手金物を介してセグメ
ント強固に結合しうるものである。Furthermore, by making the inclinations of the male fitting and the female fitting constituting the hook joint different from each other, the fitting of both fittings is strengthened, thus increasing the rigidity of the segment ring and facilitating the assembly of the ring. And surely. According to a second aspect of the present invention, the female metal piece is formed by a U-shaped metal piece and the male metal piece is formed by an L-shaped metal piece so as to facilitate the wedge engagement of the both, and firmly connect the segments through the hook joint metal fittings. It is profitable.
【００２２】請求項３の発明は前記フック金物を同種の
Ｌ字金具で構成し、製作を簡単にし、製作費を節減しう
るものである。請求項４の発明は、前記フック継手にお
ける雌金具と雄金具とをセグメント継手面で嵌合させる
のに必要な継手面の溝、または凹部の全間隔Ｄを Ｄ≧（Ｂm −ｔm ）sin θ＋ｔf ＋ｔm （ここにＢm ，ｔm は夫々雄金具の嵌合部の外側長と嵌
合部の厚さ、ｔf は雌金具の厚さ、θは前記金具の傾斜
角）としたことによって、セグメント継手面において前
記雌雄両金具を嵌合係止せしめることができるものであ
る。According to a third aspect of the present invention, the hook metal member is composed of the same type of L-shaped metal fitting, so that the manufacturing can be simplified and the manufacturing cost can be reduced. According to a fourth aspect of the present invention, the total distance D of the groove or the concave portion of the joint surface required for fitting the female metal fitting and the male metal fitting in the hook joint on the segment joint surface is D ≧ (B m −t m ). sin θ + t f + t m (where B m and t m are the outer length and the thickness of the fitting part of the male fitting, respectively, t f is the thickness of the female fitting, and θ is the inclination angle of the fitting). By doing so, the male and female fittings can be fitted and locked on the segment joint surface.
【図１】本発明に係るフック継手をもつセグメントの一
実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of a segment having a hook joint according to the present invention.
【図２】前記セグメントのフック継手を示す斜視図であ
る。FIG. 2 is a perspective view showing a hook joint of the segment.
【図３】フック継手部の詳細を示し、一部を欠截した斜
視図である。FIG. 3 is a perspective view showing details of a hook joint portion and a part of which is cut away.
【図４】（イ）（ロ）は矩形セグメントのフック金具の
雌金具及び雄金具の斜視図である。4A and 4B are perspective views of a female metal fitting and a male metal fitting of a hook metal fitting of a rectangular segment.
【図５】（イ）（ロ）は台形セグメントのフック金具の
雌金具及び斜視図である。5A and 5B are a perspective view and a female metal fitting of a hook metal fitting of a trapezoidal segment.
【図６】フック継手セグメントの他の実施例を示す斜視
図である。FIG. 6 is a perspective view showing another embodiment of the hook joint segment.
【図７】図６のセグメントのフック継手部を示す斜視図
である。7 is a perspective view showing a hook joint portion of the segment of FIG. 6. FIG.
【図８】図６に示すフック継手部の詳細を示し、一部を
欠截した斜視図である。8 is a perspective view showing the details of the hook joint portion shown in FIG. 6 with a part thereof cut away.
【図９】本発明に係るフック継手が成立する条件を示す
斜視図である。FIG. 9 is a perspective view showing conditions for establishing a hook joint according to the present invention.
【図１０】矩形セグメント１リング当りのフック継手の
構成を示す説明図である。FIG. 10 is an explanatory view showing a structure of a hook joint per one ring of a rectangular segment.
【図１１】台形セグメント１リング当りのフック継手の
構成を示す説明図である。FIG. 11 is an explanatory diagram showing a configuration of a hook joint per one ring of a trapezoidal segment.
Ａ，Ａ′ セグメント Ｂ セグメント １ 雌金具 ２ 雄金具 ３ 凹部 ４ ほぞ ５ 長ボルト孔 ６ アンカー筋 ７ アンカー部 ８ モルタル注入孔 ９ 通しボルト A, A'segment B segment 1 Female fitting 2 Male fitting 3 Recessed portion 4 Mortise 5 Long bolt hole 6 Anchor bar 7 Anchor portion 8 Mortar injection hole 9 Through bolt
─────────────────────────────────────────────────────
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【手続補正書】[Procedure amendment]
【提出日】平成７年１０月２０日[Submission date] October 20, 1995
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【書類名】 明細書[Document name] Statement
【発明の名称】 フック継手をもつセグメントTitle: Segment with hook joint
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明はフック継手をもつ、シー
ルドトンネル覆工用セグメントに係るものである。FIELD OF THE INVENTION The present invention relates to a shield tunnel lining segment having a hook joint.
【０００２】[0002]
【従来の技術】従来のボルト継手を持つセグメントは、
相隣るセグメントを突き合わせて、ボルトによって結合
した連結構造が普通であった。2. Description of the Related Art Segments with conventional bolt joints are
A connecting structure in which adjacent segments are butted and joined by bolts is common.
【０００３】[0003]
【発明が解決しようとする課題】前記ボルト継手をもつ
セグメントは、（イ）ボルトボックスがあるので、ボル
トボックスの充填処理や二次覆工を必要とする。（ロ）
セグメント内面に継手金物が露出しているので、防錆処
理が必要である。（ハ）ボルト継手はボルト締結に多く
の時間を要し、セグメント組立には熟練工を必要とし
た。またセグメント組立の自動化や急速施工に不利であ
った。（ニ）更に継手金物の材料、製作費のセグメント
製造費に占める率が大きく、コストダウンを阻害する要
因となっていた。Since the segment having the above-mentioned bolt joint has (a) bolt box, it is necessary to fill the bolt box and carry out secondary lining. (B)
Since the metal fittings are exposed on the inner surface of the segment, rustproofing is necessary. (C) A bolt joint requires a lot of time to fasten the bolt, and a skilled worker is required to assemble the segment. It was also disadvantageous for automation of segment assembly and rapid construction. (D) Further, the ratio of the material for joint fittings and the manufacturing cost to the segment manufacturing cost is large, which has been a factor to prevent cost reduction.
【０００４】本発明は前記従来技術の有する問題点に鑑
みて提案されたもので、その目的とするところは、施工
性が優れ、セグメントリングの組立が効率よく行なわ
れ、剛性や強度上合理的で、しかも経済性の優れたフッ
ク継手をもつセグメントを提供する点にある。The present invention has been proposed in view of the above-mentioned problems of the prior art. The object of the present invention is that the workability is excellent, the segment ring is assembled efficiently, and the rigidity and strength are rational. The point is to provide a segment with a hook joint that is highly economical.
【０００５】[0005]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係るフック継手をもつセグメントは、シー
ルドトンネル覆工用セグメントにおけるトンネル軸に平
行な継手面に、切羽方向に指向して漸次拡開した傾斜嵌
合部を有する第１の金具と、切羽の反対方向に指向して
延びる第２の金具とよりなる継手金具を装着し、前記セ
グメントをリング状に組み立てるに当って前記第１の金
具を前記第２の金具に嵌入、楔止してフック継手を構成
するように構成されている。In order to achieve the above-mentioned object, a segment having a hook joint according to the present invention is directed in a cutting face direction on a joint surface parallel to a tunnel axis in a shield tunnel lining segment. A fitting fitting comprising a first fitting having an inclined fitting portion that gradually expands and a second fitting extending in the direction opposite to the face is attached, and the first fitting is assembled in a ring shape by the first fitting. The first fitting is fitted into the second fitting and wedged to form a hook joint.
【０００６】請求項２の発明は、前記フック継手におけ
る前記金具の１つをコの字型金具より構成し、前記金具
に対向する金具をＬ字金具より構成したものである。請
求項３の発明は、前記フック継手を同種のＬ字金具で構
成したものである。請求項４の発明は、前記フック継手
における第１の金具と第２の金具をセグメント継手面で
嵌合させるのに必要な継手面の溝、または凹部の全間隔
Ｄが、 Ｄ≧（Ｂm −ｔm ）sin θ＋ｔf ＋ｔm （ここにＢm ，ｔm は夫々第２の金具の嵌合部の外側長
と嵌合部の厚さ、ｔf は第１の金具の厚さ、θは前記金
具の嵌合部の傾斜角）となるように構成されたものであ
る。According to a second aspect of the present invention, one of the metal fittings in the hook joint is a U-shaped metal fitting, and the metal fitting facing the metal fitting is an L-shaped metal fitting. According to a third aspect of the present invention, the hook joint is formed of an L-shaped metal fitting of the same type. According to a fourth aspect of the present invention, the total distance D of the groove or the recess of the joint surface required for fitting the first metal fitting and the second metal fitting in the hook joint on the segment joint surface is D ≧ (B m -t m) sin θ + t f + t m ( here B m, t m are each outer length and the fitting portion thickness of the fitting portion of the second metal fitting, t f is the thickness of the first metal fitting, theta Is the inclination angle of the fitting portion of the metal fitting.
【０００７】[0007]
【作用】本発明に係るセグメントは前記したように、ト
ンネル軸に平行なセグメント継手面に、切羽方向に指向
して漸次拡開した傾斜嵌合部を有する第１の金具と、切
羽の反対方向に指向して、延びる第２の金具とよりなる
継手金具を装着したので、前記セグメントの接合時、同
セグメントの第２の金具を同セグメントに接合されるセ
グメントの第１の金具の傾斜嵌合部に嵌入することによ
って、第２の金具の傾斜面が第１の金具の切羽方向に拡
開した傾斜嵌合部における傾斜面に楔合することによ
り、前記両金具によってボルト類の接合金物締付け作業
を要することなく、前記両セグメントが確実に接合され
る。As described above, in the segment according to the present invention, the segment fitting surface parallel to the tunnel axis has the first fitting having the inclined fitting portion that gradually expands in the direction of the cutting face and the direction opposite to the cutting face. Since the fitting fitting made up of the second fitting extending toward the direction is mounted, the second fitting of the segment is joined to the first fitting of the segment when the segment is joined. By fitting the slanted surface of the second metal fitting to the slanted surface of the slanted fitting portion of the first metal fitting, which is widened in the cutting face direction, the slanted surface of the second metal fitting is tightened by the two metal fittings. The two segments are securely joined together without requiring any work.
【０００８】この際、前記第１の金具と第２の金具の嵌
合部分における各金具の傾斜を僅かに食い違わせること
によって、同両金具の嵌合部にスプリング効果を発揮さ
せ、両金具の接触を確実にすることができ、両金具間に
引張力が作用するとき、遊びを生じることなく張力を確
実に伝達することができる。またセグメントを組み立て
たのち、前記金具のまわりに注入材を充填することによ
って、同金具はセグメントの鉄筋と同様に挙動するた
め、引張力はより一層確実に伝達される。At this time, the fitting of the first metal fitting and the second metal fitting is slightly misaligned with each other so that a spring effect is exerted on the fitting parts of the two metal fittings. The contact can be ensured, and when a tensile force acts between the two metal fittings, the tension can be reliably transmitted without causing play. By assembling the segments and then filling the metal around the metal fittings, the metal fittings behave like the reinforcing bars of the segments, so that the tensile force is transmitted more reliably.
【０００９】請求項２の発明によれば、前記フック継手
において前記金具の１つをコの字型金具より構成し、同
金具に対向する金具をＬ字金具より構成したので、セグ
メント接合時、Ｌ字金具より構成された同第２の金具が
コの字型金具より構成されたこれと対向する前記第１の
金具内にその開口端部より嵌入し、前記両金具を容易に
嵌合、楔止せしめ、効率よく同両金具によりセグメント
のフック継手を構成することができるものである。According to the invention of claim 2, in the hook joint, one of the metal fittings is a U-shaped metal fitting, and the metal fitting facing the metal fitting is an L-shaped metal fitting. The second metal fitting made of an L-shaped metal fitting is fitted into the first metal fitting made of a U-shaped metal fitting facing the first metal fitting from its opening end, and the both metal fittings are easily fitted, It is possible to effectively construct the hook joint of the segment by using the both metal fittings by stopping the wedge.
【００１０】請求項３の発明は、前記セグメントのフッ
ク継手を同種のＬ字金具で構成したことによって、同一
または同種の金具によって継手を形成できることとな
り、金具の製造とセグメント型枠への金具の設置が同一
工程で実施されるので省力化が図られる。請求項４の発
明は、前記第１の金具と第２の金具をセグメント継手面
に嵌合させる継手面の溝または凹部の全間隔Ｄを前記し
たように、Ｄ≧（Ｂm −ｔm ）sin θ＋ｔf ＋ｔm とす
ることによって、（Ｂm ，ｔm ，は夫々第２の金具の外
側部の外側長、ｔf は第１の金具の厚さ、θは前記金具
の傾斜角）後述のように、セグメント継手面において前
記第１の金具と第２の金具とを嵌合、係止させることが
できるものである。According to the third aspect of the present invention, since the hook joint of the segment is composed of the L-shaped metal fitting of the same kind, the joint can be formed by the same or the same kind of metal fitting. Since the installation is performed in the same process, labor saving is achieved. According to the invention of claim 4, as described above, the total distance D of the groove or the recess of the joint surface for fitting the first metal fitting and the second metal fitting to the segment joint surface is D ≧ (B m −t m ). By setting sin θ + t f + t m , (B m , t m are the outer lengths of the outer portions of the second metal fittings, t f is the thickness of the first metal fitting, and θ is the inclination angle of the metal fittings). As described above, the first fitting and the second fitting can be fitted and locked on the segment joint surface.
【００１１】[0011]
【実施例】以下、本発明を図示の実施例について説明す
る。図１乃至図４に示す実施例において、Ａはトンネル
覆工用のセグメントで、トンネル軸に平行なセグメント
継手面に設けられた切羽方向に延びる溝状の凹部３に、
同凹部３の一部を掩覆するように頂部片が切羽側に指向
して傾斜し、同頂部片と前記凹部３の側面及び底面に接
する両側片との間に形成され、端部に開口部を有する前
記凹部３の一部を掩覆する掩蓋片に形成された第１の金
具１と、切羽の反対方向に指向して延びる傾斜係止面を
有する第２の金具２がセグメント継手面の凹部３に装着
されている。図中４及び５はセグメントＡの切羽に対向
する面に設けられ、トンネル軸方向に相隣る次位のリン
グセグメントに対する接続用ほぞ、及び長ボルト孔であ
る。また６は前記継手金具をセグメントに定着するアン
カー筋、７は第２の金具２の端部に曲成されたコンクリ
ートセグメントに対するアンカー部である。The present invention will be described below with reference to the illustrated embodiments. In the embodiment shown in FIGS. 1 to 4, A is a segment for tunnel lining and is provided in a groove-shaped recess 3 extending in the face direction provided on a segment joint surface parallel to the tunnel axis.
The top piece is inclined toward the face of the face so as to cover a part of the recess 3, and is formed between the top piece and both side pieces in contact with the side surface and the bottom surface of the recess 3 and has an opening at the end. The first fitting 1 formed on the covering piece covering the part of the concave portion 3 having the portion and the second fitting 2 having the inclined locking surface extending in the direction opposite to the face are the segment joint surface. It is mounted in the concave portion 3. In the figure, 4 and 5 are tenons for connection to the next ring segment adjacent to each other in the tunnel axis direction, and long bolt holes, which are provided on the surface of the segment A facing the face. Further, 6 is an anchor bar for fixing the joint fitting to the segment, and 7 is an anchor portion for the concrete segment bent at the end of the second fitting 2.
【００１２】而して前記第２の金具２及び第１の金具１
をセグメント継手面で嵌合させるのに必要な継手部の凹
部３または溝の全間隔をＤとすると図９に示すようにＤ
≧（Ｂm −ｔm ）sin θ＋ｔf ＋ｔm がフック継手が成
立するための条件となる。図６乃至図８は本発明の他の
実施例を示し、前記第１の金具と第２の金具を同種のＬ
字金具で構成したフック継手を示し、前記実施例と均等
部分には同一符号が付されている。Thus, the second metal fitting 2 and the first metal fitting 1
Let D be the total spacing of the recesses 3 or grooves of the joint portion required to fit the joints on the segment joint surface, as shown in FIG.
≧ (B m −t m ) sin θ + t f + t m is a condition for establishing the hook joint. 6 to 8 show another embodiment of the present invention, in which the first metal fitting and the second metal fitting are made of the same type L
It shows a hook joint constituted by a bracket, and the same reference numerals are attached to the equivalent parts to the above-mentioned embodiment.
【００１３】この際、継手金具は第２の金具２と第１の
金具１を同一若しくは同種に製造でき、製造、材料管理
が容易になり、金具は鈑金加工で簡単に作成できる。図
中８はモルタル注入孔である。次に前記したフック継手
をもつセグメントの組立て方について説明する。 （イ） 矩形セグメント（４Ａ＋２Ｂ＋Ｋ）の場合セグ
メントＡの中のインバートセグメントは、セグメント継
手面の両側に第１の金具１が配設されたものを使用し、
残りの３ピースのセグメントＡと２ピースのセグメント
Ｂは一方のセグメント継手面に第２の金具２、他方のセ
グメント継手面に第１の金具１を配置した構成となり、
更に残りのセグメントＫはセグメント継手面の両側に第
２の金具２が配設されている。At this time, the second metal fitting 2 and the first metal fitting 1 can be manufactured in the same or the same kind as the joint metal fitting, manufacturing and material management are facilitated, and the metal fitting can be easily manufactured by sheet metal working. Reference numeral 8 in the drawing denotes a mortar injection hole. Next, a method of assembling the segment having the above-mentioned hook joint will be described. (A) In the case of a rectangular segment (4A + 2B + K) As the invert segment in the segment A, one in which the first metal fittings 1 are arranged on both sides of the segment joint surface is used.
The remaining three-piece segment A and the two-piece segment B have a configuration in which the second metal fitting 2 is arranged on one segment joint surface and the first metal fitting 1 is arranged on the other segment joint surface.
Further, the remaining segments K are provided with the second metal fittings 2 on both sides of the segment joint surface.
【００１４】前記各セグメントによってリングを組立て
るには先ずインバートセグメントを前に組立てられたセ
グメントリングのセグメントに合わせて取り付ける。こ
の際、リング継手面にはほぞ４があるので、ほぞを嵌合
させるだけで位置決めができる。位置決めができれば通
しボルト９の他、クイックジョイントによってセグメン
トを前に組立てられたセグメントリングに固定する。To assemble a ring with each of the aforementioned segments, the invert segment is first attached to the segment of the previously assembled segment ring. At this time, since the tenon 4 is provided on the ring joint surface, the tenon can be positioned only by fitting the tenon. Once positioned, the segments are fixed to the previously assembled segment ring by means of through bolts 9 as well as quick joints.
【００１５】次いでインバートセグメントに隣接するセ
グメントＡを取付ける。この際、インバートセグメント
の第１の金具１のあるセグメント継手面に第２の金具２
のあるセグメント継手面に近接して、金具が嵌合し始め
たらセグメントをトンネル軸方向にスライドさせて押込
む。この操作とリング継手面のほぞの嵌合によって自づ
と位置決めができる。なおこの際、セグメント継手面に
もほぞを設けておくことによって、より確実な位置決め
が行なわれる。かくしてセグメントの位置決めができる
と通しボルト９によって、前に組立てられたセグメント
リングに固定する。Next, the segment A adjacent to the invert segment is attached. At this time, the second metal fitting 2 is attached to the segment joint surface of the first metal fitting 1 of the invert segment.
Close to the segment joint surface where there is, and when the metal fittings start to fit, slide the segment in the tunnel axial direction and push it in. By this operation and the fitting of the tenon of the ring joint surface, the positioning can be performed independently. At this time, more reliable positioning is performed by providing a tenon on the segment joint surface. Once the segment is thus positioned, it is secured to the previously assembled segment ring by means of a through bolt 9.
【００１６】次いで第３，第４のセグメントを左右交互
に前記同様の方法で取付ける。また２ピースのセグメン
トＢについても同じ手段で取付ける。最後にＫセグメン
トを挿入することになるが、同セグメントＫには両側継
手面に第２の金具２だけが取付けられているだけである
から、同セグメントＫを押し込むだけで第２の金具２は
セグメントＢの第１の金具１に嵌合する。かくしてセグ
メントＫの挿入が完了すると通しボルトで締付け、リン
グの組立が完了する。（図１０参照） （ロ） 次に等大台形セグメント（台形３ピース＋逆台
形３ピース）を組立てる場合について説明する。Next, the third and fourth segments are alternately attached to the left and right in the same manner as described above. The two pieces of segment B are also attached by the same means. Finally, the K segment will be inserted, but since only the second metal fitting 2 is attached to the joint surfaces on both sides of the same segment K, the second metal fitting 2 can be attached only by pushing in the same segment K. The first fitting 1 of the segment B is fitted. Thus, when the insertion of the segment K is completed, it is tightened with the through bolt, and the assembly of the ring is completed. (See FIG. 10) (B) Next, a case of assembling a large-scale trapezoidal segment (trapezoidal 3 pieces + inverted trapezoidal 3 pieces) will be described.
【００１７】台形セグメントはその両側継手面に第１の
金具１だけを配置した構成とし、逆台形セグメントの１
ピースをインバートセグメントとして前に組立てられた
リングに取付る。同様に他の２ピースの台形セグメント
を夫々の間に逆台形セグメントを挿入できるように所定
の間隔を置いて取付ける。なおこれらの操作は３ピース
同時に行うこともできる。取付に当ってはリング継手面
にほぞ４があるので、これを前に組立てられたセグメン
トリングのほぞに挿入するだけで位置決めができる。か
くして位置決めが完了すると、通しボルト９によってセ
グメントを前に組立てられたリングのセグメントに通し
ボルト９によって固定できる。The trapezoidal segment has a structure in which only the first metal fittings 1 are arranged on the joint surfaces on both sides of the trapezoidal segment.
Attach the piece to the previously assembled ring as an invert segment. Similarly, the other two-piece trapezoidal segments are mounted at predetermined intervals so that an inverted trapezoidal segment can be inserted between them. It should be noted that these operations can be performed simultaneously on three pieces. Since there is a tenon 4 on the ring joint surface for mounting, it can be positioned simply by inserting it into the tenon of the previously assembled segment ring. Once positioned, the through bolt 9 allows the segment to be secured to the previously assembled ring segment by the through bolt 9.
【００１８】逆台形セグメントはセグメント継手面に第
２の金具２だけを配置したものであるから、既に取付け
が完了した台形セグメントの間に挿入するだけで取付け
が可能である。なおリング継手面のほぞ４は位置決めを
容易且つ確実にするものである。かくして逆台形セグメ
ントの挿入が終ると通しボルト９によって締付け、リン
グの組立が完了する。Since the inverted trapezoidal segment has only the second metal fitting 2 arranged on the segment joint surface, the inverted trapezoidal segment can be attached only by inserting it between the trapezoidal segments which have already been attached. The tenon 4 on the ring joint surface facilitates and ensures positioning. Thus, when the inverted trapezoidal segment is completely inserted, the through bolt 9 is tightened to complete the ring assembly.
【００１９】[0019]
【発明の効果】本発明によれば前記したように、セグメ
ントにおけるトンネル軸に平行な継手面に、切羽方向に
指向して漸次拡開した傾斜嵌合部を有する第１の金具
と、切羽の反対方向に指向して漸次拡開した傾斜嵌合部
を有する第１の金具と、切羽の反対方向に指向して延び
る傾斜係止面を有する第２の金具とよりなる継手金具を
装着し、前記第１の金具と第２の金具とを嵌合楔止して
フック継手を構成することによって、前記セグメントを
リング状に組立てるようにしたもので、従来のセグメン
ト継手のようにボルト接合を不要とし、フック継手が挿
入式であるため組立て作業が簡単で組立て時間も短縮さ
れ、自動化等による組立ての工業化が図られ、施工速度
を著しく急速化しうるものである。また従来工法のよう
に、セグメント内部にボルトボックス等の金物が露出し
ないので防錆処理が不要となり、更にセグメント内面が
平滑であるから、二次覆工なしにトンネル覆工として使
用できる。As described above, according to the present invention, the first metal fitting having the inclined fitting portion which gradually expands toward the cutting face on the joint surface parallel to the tunnel axis in the segment and the cutting face. Attaching a joint metal fitting consisting of a first metal fitting having an inclined fitting portion that gradually expands in the opposite direction and a second metal fitting having an inclined locking surface extending in the opposite direction of the face, The first metal fitting and the second metal fitting are fitted to each other to form a hook joint by wedge-locking the segments to assemble the segments into a ring shape, which eliminates the need for bolt connection unlike the conventional segment joints. Since the hook joint is an insertion type, the assembling work is simple, the assembling time is shortened, the assembling is industrialized by automation, etc., and the construction speed can be remarkably increased. Also, unlike the conventional method, the metal parts such as the bolt box are not exposed inside the segment, so that no rust-proofing is required and the inner surface of the segment is smooth, so it can be used as a tunnel lining without secondary lining.
【００２０】更にフック継手の金具の断面積を外部寸法
に比して大きくすることが容易であるから、曲げモーメ
ント及び引張力に抵抗性の大きいセグメント継手を形成
でき、更に前記金具の周囲にモルタル等を注入すること
によって、同金具はセグメントの鉄筋と同様な挙動を
し、セグメントリングの強度、剛性を大きくすることが
できる。Furthermore, since it is easy to increase the cross-sectional area of the metal fitting of the hook joint in comparison with the external dimension, it is possible to form a segment joint having a high resistance to bending moment and tensile force, and further, the mortar is provided around the metal fitting. By injecting etc., the metal fitting behaves similarly to the reinforcing bar of the segment, and the strength and rigidity of the segment ring can be increased.
【００２１】更にまたフック継手を構成する前記第２の
金具と第１の金具の傾斜を互いにくい違わせることによ
って両金具の嵌合が強固になり、かくしてセグメントリ
ングの剛性が増大し、リングの組立が容易に且つ確実に
行われる。請求項２の発明は前記第１の金具をコの字型
金具より構成し、第２の金具をＬ字金具より構成するこ
とによって両者の楔合を容易ならしめ、フック継手金物
を介してセグメント強固に結合しうるものである。Furthermore, by making the inclinations of the second metal fitting and the first metal fitting constituting the hook joint different from each other, the fitting of both metal fittings is strengthened, thus increasing the rigidity of the segment ring, Assembly is easy and reliable. According to a second aspect of the present invention, the first metal fitting is composed of a U-shaped metal fitting, and the second metal fitting is composed of an L-shaped metal fitting so as to facilitate the wedge engagement of the both, and a segment is provided via a hook joint metal fitting. It can be firmly bonded.
【００２２】請求項３の発明は前記フック金物を同種の
Ｌ字金具で構成し、製作を簡単にし、製作費を節減しう
るものである。請求項４の発明は、前記フック継手にお
ける第１の金具と第２の金具とをセグメント継手面で嵌
合させるのに必要な継手面の溝、または凹部の全間隔Ｄ
を Ｄ≧（Ｂm −ｔm ）sin θ＋ｔf ＋ｔm （ここにＢm ，ｔm は夫々第２の金具の嵌合部の外側長
と嵌合部の厚さ、ｔf は第１の金具の厚さ、θは前記金
具の傾斜角）としたことによって、セグメント継手面に
おいて前記両金具を嵌合係止せしめることができるもの
である。According to a third aspect of the present invention, the hook metal member is composed of the same type of L-shaped metal fitting, so that the manufacturing can be simplified and the manufacturing cost can be reduced. According to a fourth aspect of the present invention, a groove or groove on the joint surface necessary for fitting the first metal fitting and the second metal fitting in the hook joint on the segment joint surface is the total distance D.
D ≧ (B m −t m ) sin θ + t f + t m (where B m and t m are the outer length and thickness of the fitting part of the second fitting, respectively, and t f is the first By setting the thickness of the metal fitting, where θ is the inclination angle of the metal fitting, the both metal fittings can be fitted and locked on the segment joint surface.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明に係るフック継手をもつセグメントの一
実施例を示す斜視図である。FIG. 1 is a perspective view showing an embodiment of a segment having a hook joint according to the present invention.
【図２】前記セグメントのフック継手を示す斜視図であ
る。FIG. 2 is a perspective view showing a hook joint of the segment.
【図３】フック継手部の詳細を示し、一部を欠截した斜
視図である。FIG. 3 is a perspective view showing details of a hook joint portion and a part of which is cut away.
【図４】（イ）（ロ）は矩形セグメントのフック金具の
第１の金具及び第２の金具の斜視図である。4A and 4B are perspective views of a first metal fitting and a second metal fitting of a hook metal fitting of a rectangular segment.
【図５】（イ）（ロ）は台形セグメントのフック金具の
第１の金具及び斜視図である。5A and 5B are a first metal fitting and a perspective view of a hook metal fitting of a trapezoidal segment.
【図６】フック継手セグメントの他の実施例を示す斜視
図である。FIG. 6 is a perspective view showing another embodiment of the hook joint segment.
【図７】図６のセグメントのフック継手部を示す斜視図
である。7 is a perspective view showing a hook joint portion of the segment of FIG. 6. FIG.
【図８】図６に示すフック継手部の詳細を示し、一部を
欠截した斜視図である。8 is a perspective view showing the details of the hook joint portion shown in FIG. 6 with a part thereof cut away.
【図９】本発明に係るフック継手が成立する条件を示す
斜視図である。FIG. 9 is a perspective view showing conditions for establishing a hook joint according to the present invention.
【図１０】矩形セグメント１リング当りのフック継手の
構成を示す説明図である。FIG. 10 is an explanatory view showing a structure of a hook joint per one ring of a rectangular segment.
【図１１】台形セグメント１リング当りのフック継手の
構成を示す説明図である。FIG. 11 is an explanatory diagram showing a configuration of a hook joint per one ring of a trapezoidal segment.
【符号の説明】 Ａ，Ａ′ セグメント Ｂ セグメント １ 第１の金具 ２ 第２の金具 ３ 凹部 ４ ほぞ ５ 長ボルト孔 ６ アンカー筋 ７ アンカー部 ８ モルタル注入孔 ９ 通しボルト[Explanation of reference symbols] A, A'segment B segment 1 First metal fitting 2 Second metal fitting 3 Recess 4 Mortise 5 Long bolt hole 6 Anchor bar 7 Anchor portion 8 Mortar injection hole 9 Through bolt
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図２[Name of item to be corrected] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図２】 [Fig. 2]
【手続補正３】[Procedure 3]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図９[Correction target item name] Figure 9
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図９】 [Figure 9]
フロントページの続き (72)発明者 桐谷 祥治 東京都中央区日本橋本町４−12−20 佐藤 工業株式会社内 (72)発明者 吉成 寿男 東京都中央区日本橋本町４−12−20 佐藤 工業株式会社内Front page continuation (72) Inventor Shoji Kiritani 4-12-20 Nihonbashihonmachi, Chuo-ku, Tokyo Sato Kogyo Co., Ltd. (72) Inventor Toshio Yoshinari 4-12-20 Nihonbashihoncho, Chuo-ku, Tokyo Sato Kogyo Co., Ltd.
Claims (4)
けるトンネル軸に平行な継手面に、切羽方向に指向して
漸次拡開した傾斜嵌合部を有する雌金具と、切羽の反対
方向に指向して延びる雄金具とよりなる継手金具を装着
し、前記セグメントをリング状に組み立てるに当って前
記雌金具を雄金具に嵌入、楔止してフック継手を構成す
るように構成されたフック継手をもつセグメント。1. A female metal fitting having an inclined fitting portion that gradually expands toward a cutting face on a joint surface parallel to the tunnel axis in a shield tunnel lining segment, and extends in a direction opposite to the cutting face. A segment having a hook joint configured to mount a joint metal fitting made of a male metal fitting, and to fit the female metal fitting into the male metal fitting and to wedge-lock the male metal fitting when assembling the segment into a ring shape.
コの字型金具より構成し、前記雄金具をＬ字金具より構
成した請求項１記載のフック継手をもつセグメント。2. A segment having a hook joint according to claim 1, wherein in the hook joint, the female metal piece is made of a U-shaped metal piece and the male metal piece is made of an L-shaped metal piece.
した請求項１記載のフック継手をもつセグメント。3. A segment having a hook joint according to claim 1, wherein the hook joint is made of an L-shaped metal fitting of the same kind.
をセグメント継手面で嵌合させるのに必要な継手面の
溝、または凹部の全間隔Ｄが、 Ｄ≧（Ｂm −ｔm ）sin θ＋ｔf ＋ｔm （ここにＢm ，ｔm は夫々雄金具の嵌合部の外側長と嵌
合部の厚さ、ｔf は雌金具の厚さ、θは前記金具の嵌合
部の傾斜角）となるように構成された請求項１記載のフ
ック継手をもつセグメント。4. The total distance D of the groove or the recess of the joint surface required for fitting the female metal fitting and the male metal fitting in the hook joint on the segment joint surface is D ≧ (B m −t m ) sin θ + t f + t m (where B m and t m are the outer length and thickness of the fitting portion of the male fitting, t f is the thickness of the female fitting, and θ is the inclination angle of the fitting portion of the fitting. ). A segment with a hook joint according to claim 1 configured to be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04058395A JP3539697B2 (en) | 1995-02-28 | 1995-02-28 | Segment with hook joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04058395A JP3539697B2 (en) | 1995-02-28 | 1995-02-28 | Segment with hook joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08232584A true JPH08232584A (en) | 1996-09-10 |
| JP3539697B2 JP3539697B2 (en) | 2004-07-07 |
Family
ID=12584524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04058395A Expired - Lifetime JP3539697B2 (en) | 1995-02-28 | 1995-02-28 | Segment with hook joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3539697B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999039081A1 (en) * | 1998-01-29 | 1999-08-05 | C.V. Buchan Limited | Device for joining two concrete members together |
| JP2007132076A (en) * | 2005-11-10 | 2007-05-31 | Jfe Metal Products & Engineering Inc | Connecting structure and connecting method for tunnel segment |
| JP2012219575A (en) * | 2011-04-13 | 2012-11-12 | Nippon Hume Corp | Joint structure for segment |
| JP2017110424A (en) * | 2015-12-17 | 2017-06-22 | メトロ開発株式会社 | Segment joint and its manufacturing method |
-
1995
- 1995-02-28 JP JP04058395A patent/JP3539697B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999039081A1 (en) * | 1998-01-29 | 1999-08-05 | C.V. Buchan Limited | Device for joining two concrete members together |
| US6379077B1 (en) | 1998-01-29 | 2002-04-30 | C. V. Buchan Ltd. | Device for joining two concrete members together |
| JP2007132076A (en) * | 2005-11-10 | 2007-05-31 | Jfe Metal Products & Engineering Inc | Connecting structure and connecting method for tunnel segment |
| JP2012219575A (en) * | 2011-04-13 | 2012-11-12 | Nippon Hume Corp | Joint structure for segment |
| JP2017110424A (en) * | 2015-12-17 | 2017-06-22 | メトロ開発株式会社 | Segment joint and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3539697B2 (en) | 2004-07-07 |
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