JPH08232585A - Segment having horizontal hook joint - Google Patents
Segment having horizontal hook jointInfo
- Publication number
- JPH08232585A JPH08232585A JP7040584A JP4058495A JPH08232585A JP H08232585 A JPH08232585 A JP H08232585A JP 7040584 A JP7040584 A JP 7040584A JP 4058495 A JP4058495 A JP 4058495A JP H08232585 A JPH08232585 A JP H08232585A
- Authority
- JP
- Japan
- Prior art keywords
- segment
- joint
- fitting
- hook
- 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】本発明は水平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 horizontal hook joint.
【０００２】[0002]
【従来の技術】従来のボルト継手をもつセグメントは、
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。しかしこのようにボルト
継手をもつセグメントは、（イ）ボルトボックスがある
ので、同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具が露出している
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。このためセグメント組立の自動化や急速
施工に不利であった。（ニ）更に継手金具の材料、製作
費に占める率が大きく、コストダウンを阻害する原因と
なっていた。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. However, such a segment having a bolt joint has (a) a bolt box, and thus requires a filling process and a secondary lining of the bolt box. (B) Since the fittings are exposed on the inner surface of the segment, anticorrosion treatment 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. For this reason, it was disadvantageous for automation of segment assembly and rapid construction. (D) Further, the ratio of the material of the fitting and the manufacturing cost is large, which is a cause of hindering cost reduction.
【０００３】本発明者等はこのような欠点を防止するた
めに、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設けた凹溝内に夫々複数の、切
羽方向に指向して次第に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
み立てるのに際して、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フック継手をもつセグメント
を提案した。In order to prevent such a defect, the present inventors have been directed in a plurality of recessed grooves provided on a joint surface parallel to the tunnel axis in the shield tunnel lining segment, and gradually directed in the direction of the cutting face. A female fitting having an expanded inclined fitting portion and a fitting fitting made of a male fitting extending in a direction opposite to the face are mounted, and when the segment is assembled in a ring shape, the female fitting is used as a male fitting. We proposed a segment with a hook joint that fits and wedges to form a hook joint.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うなトンネルの横断面内にアンカー部分を有するフック
継手においては、セグメントの幅当りのフック継手の金
具配置数には限界があり、またフック金具の大きさもセ
グメント厚さに対して制限がある。このため、強度の大
きい継手を必要とする場合には、継手金具の肉厚を厚く
して対応することになるが、肉厚の鋼板類は加工が面倒
であるし、またアンカー部分のセグメント本体への接続
が難しくなり、同部分の構造が複雑になり、その結果と
して構造上の欠陥がでやすくなる。However, in such a hook joint having an anchor portion in the cross section of the tunnel, there is a limit to the number of metal fittings of the hook joint per width of the segment, and the hook metal fittings have a limit. The size is also limited to the segment thickness. For this reason, when a joint with high strength is required, the wall thickness of the joint fitting should be increased, but it is difficult to process thick steel plates, and the segment body of the anchor part It becomes difficult to connect to, and the structure of the same part becomes complicated, and as a result, structural defects are likely to occur.
【０００５】またセグメント継手面に曲げモーメントが
作用する場合、アンカー部の一部分だけが引張力に抵抗
するにすぎない。本発明は前記の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、構造上合
理的で、経済性の優れた、水平フック継手をもつセグメ
ントを提供する点にある。Further, when a bending moment acts on the segment joint surface, only a part of the anchor portion resists the tensile force. The present invention has been proposed in view of the above problems, the object is to have excellent workability,
The segment ring is efficiently assembled, is structurally rational, and is economical in providing a segment having a horizontal hook joint.
【０００６】[0006]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係る水平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
に平行なセグメント継手面を切羽方向に指向して放射状
に拡開した嵌合部を持つ雌金具と、切羽と反対方向に指
向して放射状に拡開した嵌合部を持つ雄金具とで形成し
たフック継手をもつセグメントにおいて、前記雌雄各金
具が鋼鉄板で構成されるとともに、同各金具のアンカー
部分がトンネル軸に直角方向に形成されている。To achieve the above object, a segment having a horizontal hook joint according to the present invention comprises:
A female metal fitting with a fitting part that expands radially with the segment joint surface parallel to the tunnel axis in the shield tunnel lining segment oriented in the cutting face direction, and a fitting that expands radially in the direction opposite to the cutting face. In a segment having a hook joint formed with a male fitting having a joint, each of the male and female fittings is made of a steel plate, and an anchor portion of each of the fittings is formed in a direction perpendicular to the tunnel axis.
【０００７】請求項２の発明は、前記雌雄両金具で形成
された水平フック継手において、一方の金具を鉤形断面
に形成し、同一方の金具に係合する他方の金具を前記鉤
形断面部に係合する倒Ｌ形断面に形成し、アンカー部分
がセグメントの厚さ方向に対して同じ位置に位置するよ
うに形成されている。According to a second aspect of the present invention, in a horizontal hook joint formed of both male and female metal fittings, one of the metal fittings is formed in a hook-shaped cross section, and the other metal fitting engaged with the same metal fitting is formed in the hook-shaped cross section. It is formed in an inverted L-shaped cross section that engages with the portion, and the anchor portion is formed so as to be located at the same position in the thickness direction of the segment.
【０００８】[0008]
【作用】本発明に係る水平フック継手をもつセグメント
は前記したように、トンネル軸に平行なセグメント継手
面に夫々鋼鉄板より構成された切羽方向に拡開した嵌合
部を持つ雌金具と、切羽と反対方向に指向して放射状に
拡開した嵌合部を持つ雄金具とより構成されていて、同
各金具のトンネル軸に直角方向にアンカー部分がアンカ
ーされるようになっているので、アンカー部の幅をセグ
メント幅まで拡大でき、アンカー部断面をすべて有効に
利用することが可能で、必要なアンカー力を容易に確保
することができる。またセグメントの厚さ方向に複数段
の水平フック金具を配置することにより、正負の曲げモ
ーメントに対して同等且つ、強力に抵抗できる。As described above, the segment having the horizontal hook joint according to the present invention is, as described above, female fittings each having a fitting portion which is made of a steel plate and has a fitting portion expanded in the cutting face direction on the joint surface of the segment parallel to the tunnel axis. It is composed of male metal fittings that have a fitting portion that expands radially in the direction opposite to the face, and the anchor portion is anchored in the direction perpendicular to the tunnel axis of each metal fitting. The width of the anchor portion can be expanded to the segment width, the entire cross section of the anchor portion can be effectively used, and the necessary anchor force can be easily secured. Further, by disposing a plurality of horizontal hook metal fittings in the thickness direction of the segment, it is possible to equally and strongly resist positive and negative bending moments.
【０００９】更にセグメント厚さに対するアンカー部の
位置を同一にすることにより、前記継手金具を介して力
の伝達が円滑に行われ、継手に局部的に応力が発生する
ことがない。請求項２の発明は、前記雌雄両金具で形成
された水平フック継手において、同雌雄両金具のうち一
方の金具を鉤形断面に形成し、同一方の金具に係合する
他方の金具を前記鉤形断面部に係合する倒Ｌ形断面に形
成し、アンカー部分がセグメントの厚さ方向において同
じ位置に位置するように形成したことによって前記相隣
るセグメントが確実に、且つ連続した状態で接続される
ものである。Further, by making the positions of the anchor portions the same with respect to the segment thickness, the force is smoothly transmitted through the joint fitting, and no local stress is generated in the joint. According to a second aspect of the present invention, in the horizontal hook joint formed of the male and female metal fittings, one of the male and female metal fittings has a hook-shaped cross section, and the other metal fitting that engages with the same metal fitting is provided. By forming the inverted L-shaped cross-section that engages with the hook-shaped cross-section and forming the anchor portions at the same position in the thickness direction of the segment, the adjacent segments can be reliably and continuously connected. It is connected.
【００１０】[0010]
【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７に示す実施例において、Ａはコンクリ
ート製のトンネル覆工用セグメントで、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１に、同切羽方向に指向して放射状に拡開した
嵌合部を持つ水平の鋼鉄製の雌金具２と切羽と反対方向
に指向して放射状に拡開した嵌合部を持つ水平の鋼鉄製
の雄金具３が装着されている。前記雌金具２は鉤形断面
部２ａが形成され、雄金具３は同鉤形断面部に係止する
係止片３ａが設けられた倒Ｌ形断面に形成され、前記鉤
形断面部２ａと係止片３ａによるアンカー部分がトンネ
ル軸に直角方向に構成されている。The present invention will be described below with reference to the illustrated embodiments. In the embodiment shown in FIG. 1 to FIG. 7, A is a concrete tunnel lining segment, which is provided in a groove-shaped recess 1 provided in a segment joint surface parallel to the tunnel axis and extending in the cutting face direction. A horizontal steel female fitting 2 having a fitting portion which is radially expanded and oriented and a horizontal steel male fitting 3 having a fitting portion which is radially expanded and oriented in a direction opposite to the face are mounted. Has been done. The female metal fitting 2 has a hook-shaped cross section 2a, and the male metal fitting 3 has an inverted L-shaped cross section provided with a locking piece 3a for locking the same. An anchor portion formed by the locking piece 3a is formed in a direction perpendicular to the tunnel axis.
【００１１】図中、４はアンカー筋、５はセグメントＡ
の切羽に対向する面に設けられたほぞで、通しボルト６
の挿通孔が設けられている。７は接合モルタルの注入
孔、８は排気孔である。図５及び図６は夫々水平フック
継手を２段に配設した場合を示し、図７は水平フック継
手を１段に配設した場合を示す。In the figure, 4 is an anchor muscle, 5 is a segment A
With a tenon provided on the surface facing the face of the through bolt 6
Through holes are provided. Reference numeral 7 is an injection hole for joining mortar, and 8 is an exhaust hole. 5 and 6 show the case where the horizontal hook joints are arranged in two stages, and FIG. 7 shows the case where the horizontal hook joints are arranged in one stage.
【００１２】而して一方のセグメントＡの雌金具２の鉤
形断面部に他方のセグメントＡの雄金具３の係止片を切
羽方向に亘って係合し、前記注入孔７よりモルタルを注
入して同モルタル中に混入した空気を排気孔８より排除
して、前記両セグメントＡの継手面にモルタルを充填し
てセグメントＡを継接する。次に前記した水平フック継
手をもつセグメントの組立方法について説明する。Thus, the hook-shaped cross section of the female metal fitting 2 of one segment A is engaged with the locking piece of the male metal fitting 3 of the other segment A in the cutting face direction, and mortar is injected from the injection hole 7. Then, the air mixed in the mortar is removed from the exhaust hole 8, and the joint surfaces of the segments A are filled with mortar to join the segments A together. Next, a method of assembling the segment having the horizontal hook joint described above will be described.
【００１３】矩形セグメントの場合（３Ａ＋２Ｂ＋Ｋの
場合） 三つのＡセグメント中のインバートセグメントでは、そ
の二つのセグメント継手面に継手金具ａとして雌金具を
配置し、残りの二つのＡセグメントと二つのＢセグメン
トでは、継手金具ａとして一方のセグメント継手面に雄
金具、他方のセグメント継手面に雌金具を配置し、Ｋセ
グメントでは、その二つのセグメント継手面に雄金具を
配置する。In the case of a rectangular segment (3A + 2B + K) In the invert segment among the three A segments, female metal fittings are arranged as the joint metal fittings a on the two segment joint surfaces, and the remaining two A segments and two B segments. Then, a male metal fitting is arranged on one segment joint surface and a female metal fitting is arranged on the other segment joint surface as the joint metal fitting a, and in the K segment, male metal fittings are arranged on the two segment joint surfaces.
【００１４】以上のようなセグメントをリング状に組み
立てるには、第一にインバートセグメントＡ1 を既設の
セグメントリングのインバートの位置のセグメントにあ
わせて取り付ける。リング継手面にほぞ５があるから、
ほぞを嵌合させるだけで位置決めが可能である。また、
位置決めができれば、通しボルト６によってセグメント
を既設リングのセグメントに固定する。In order to assemble the above segments into a ring shape, first, the invert segment A 1 is attached to the segment at the invert position of the existing segment ring. Since there is a tenon 5 on the ring joint surface,
Positioning is possible simply by fitting the tenon. Also,
After positioning, the segment is fixed to the segment of the existing ring by the through bolt 6.
【００１５】第二は、インバートセグメントＡ1 に隣接
するＡ2 ，Ａ3 セグメントを取り付ける。この場合、雄
金具のあるセグメント継手面をインバートセグメントの
雌金具のあるセグメント継手面に近づけ、双方の金具が
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
させて押し込む。この操作とセグメントリング継手面の
ほぞ嵌合とによって必然的に位置決めが可能となる。な
お、このときセグメント継手面にもほぞを設けておけば
位置決めはより確実になる。位置決めができれば、通し
ボルト６によってセグメントを既設リングに固定する。Second, the A 2 and A 3 segments adjacent to the invert segment A 1 are attached. In this case, the segment joint surface with the male fitting is brought close to the segment joint surface with the female fitting of the invert segment, and when both fittings start to be fitted, the segment is slid in the tunnel axial direction and pushed in. This operation and the tenon fitting of the segment ring joint surface inevitably enable positioning. At this time, if a tenon is provided on the segment joint surface, the positioning becomes more reliable. Once positioned, the through bolt 6 secures the segment to the existing ring.
【００１６】次いでＫセグメントに隣接するＢセグメン
ト（Ａ4 ，Ａ5 ）を左右交互に取り付ける。取付方法は
前述の場合と同じである。最後にＫセグメントＡ6 を挿
入する。ＫセグメントＡ6 の二つのセグメント継手面に
は雄金具がついており、ＫセグメントＡ6 が押し込まれ
ることにより、これら雄金具が両側のＢセグメントのＡ
4 ，Ａ5 の雌金具に嵌合する。ＫセグメントＡ6 が挿入
できれば通しボルト６で既設のセグメントリングと締結
してセグメントリングの組立ては完了する。（図８参
照） 次に等大台形セグメントの場合（台形３＋逆台形３の場
合）について述べる三つの台形セグメントでは二つのセ
グメント継手面に継手金具ａとして雌金具を、三つの逆
台形セグメントでは二つのセグメント継手面に継手金具
ａとして雄金具を配置する。したがって、セグメントの
種類は２種類となる。Next, the B segments (A 4 , A 5 ) adjacent to the K segment are attached alternately to the left and right. The mounting method is the same as that described above. Finally, K segment A 6 is inserted. The two segments fitting surface of the K segment A 6 is equipped with a male fitting, by K segment A 6 is pressed, these male fittings on both sides of the B segment A
4, is fitted into the female fittings A 5. If the K segment A 6 can be inserted, it is fastened to the existing segment ring with the through bolt 6 to complete the assembly of the segment ring. (See FIG. 8) Next, the case of the isosceles trapezoidal segment (the case of trapezoid 3 + inverted trapezoid 3) will be described. In the three trapezoidal segments, the female metal fittings are used as the fittings a on the two segment joint surfaces, and the two trapezoidal segments are the two Male fittings are arranged on the two segment joint surfaces as joint fittings a. Therefore, there are two types of segments.
【００１７】組立てにあたっては、第一に台形セグメン
トの一つＡ1 をインバートセグメントとして既設のセグ
メントリングに取り付ける。同様に他の二つの台形セグ
メントＡ2 ，Ａ3 も各々の間に逆台形セグメントＡ4 ，
Ａ5 ，Ａ6 を挿入できるように所定の間隔をおいて取り
付ける。これらの操作は三つのセグメントについて同時
に行うことも可能である。セグメントの取り付けにあた
っては、リング継手面にほぞがあるため、これを既設リ
ングのリング継手面のほぞに挿入するだけで位置決めが
できる。位置決めができれば、通しボルトなどによって
セグメントを既設リングに固定する。In assembling, first, one of the trapezoidal segments A 1 is attached to an existing segment ring as an invert segment. Similarly, the other two trapezoidal segments A 2 and A 3 have inverted trapezoidal segments A 4 and A 3 between them.
As can be inserted A 5, A 6 attached at predetermined intervals. These operations can be performed on three segments at the same time. Since there is a tenon on the ring joint surface when attaching the segment, the segment can be positioned simply by inserting it into the tenon on the ring joint surface of the existing ring. Once positioned, fix the segment to the existing ring with through bolts.
【００１８】逆台形セグメントの取付は、二つのセグメ
ント継手面に雄金具を配置したものであるから、既に取
り付け終わった台形セグメントの間に挿入するだけであ
る。なお、リング継手面に配置したほぞは、位置決めを
容易かつ確実にする上で有効である。逆台形セグメント
の挿入が終われば、通しボルト６で既設セグメントと締
結してセグメントリングの組立ては完了する。（図９参
照）The attachment of the inverted trapezoidal segment is made by arranging the male fittings on the two segment joint surfaces, so that the inverted trapezoidal segment is simply inserted between the trapezoidal segments already attached. The tenon arranged on the ring joint surface is effective in making positioning easy and reliable. When the inverted trapezoidal segment is completely inserted, the through bolt 6 is fastened to the existing segment to complete the assembly of the segment ring. (See Figure 9)
【００１９】[0019]
【発明の効果】本発明によれば前記したように、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
なセグメント継手面を切羽方向に指向して放射状に拡開
した嵌合部を持つ鋼鉄板製雌金具と、切羽と反対方向に
指向して放射状に拡開した嵌合部を持つ鋼鉄板製雄金具
とで形成したセグメントにおいて、前記雌雄各金具のア
ンカー部分がトンネル軸に直角方向に形成されているの
で、必要に応じてセグメント幅までアンカー部の幅を拡
大できる。従って必要なアンカーを容易に確保すること
ができ、強度の大きいセグメント継手を構成しうるもの
である。また前記水平フック継手金具をセグメントの厚
さ方向に複数段配置することによって、曲げ抵抗力が正
負のモーメントに対して同等、且つ強大な継手を形成す
ることができる。As described above, according to the present invention, as described above, a steel plate having a fitting portion in which the segment joint surface of the shield tunnel lining segment that is parallel to the tunnel axis is oriented in the cutting face direction and is radially expanded. In the segment formed by the female metal member and the male metal member made of steel plate having a fitting portion that is oriented radially in the direction opposite to the face and has a radially expanded fitting portion, the anchor portion of each male and female metal member is formed in a direction perpendicular to the tunnel axis. Therefore, the width of the anchor portion can be expanded to the segment width as necessary. Therefore, the necessary anchor can be easily secured, and a segment joint having high strength can be configured. Further, by arranging the horizontal hook joint fittings in a plurality of stages in the thickness direction of the segment, it is possible to form a joint in which the bending resistance force is equal to the positive and negative moments and is strong.
【００２０】また本発明によれば、セグメント厚さに対
する水平フック継手のアンカー部の位置を同じにするこ
とができるので、継手を介しての力の授受が円滑に行な
われ、セグメント継手部に局所的応力が作用せず、合理
的継手構造を構成することができる。更にまたセグメン
ト継手面に曲げモーメントが作用する場合、本発明によ
れば水平フック継手アンカー部の断面がすべて有効に抵
抗するものである。Further, according to the present invention, since the position of the anchor portion of the horizontal hook joint can be made the same with respect to the segment thickness, the force can be smoothly transmitted and received through the joint, and the local portion of the segment joint portion can be smoothly transferred. A rational joint structure can be constructed without mechanical stress. Furthermore, when a bending moment acts on the segment joint surface, according to the present invention, the entire cross section of the horizontal hook joint anchor portion effectively resists.
【００２１】また本発明の水平フック継手をもつセグメ
ントは内面が平滑であるから二次覆工を施さなくても耐
久性に富み、かつトンネル内空間の利用度を拡げたトン
ネル覆工体が得られる。更に内面に金物が露出していな
いので防錆処理が不要である。更にまた水平フック継手
をもつセグメントは、トンネル軸方向からセグメントを
挿入するだけで組立可能となり、組立手間、組立時間が
短縮され、セグメント組立の自動化や急速施工に有利で
ある。Further, since the segment having the horizontal hook joint of the present invention has a smooth inner surface, it is possible to obtain a tunnel lining body which is rich in durability without being subjected to a secondary lining and which has an increased utilization of the space in the tunnel. To be Further, since the metal is not exposed on the inner surface, no rust prevention treatment is required. Furthermore, a segment having a horizontal hook joint can be assembled simply by inserting the segment from the tunnel axial direction, which shortens the assembling time and the assembling time, which is advantageous for automation of segment assembly and rapid construction.
【００２２】また前記継手金物は鋼鉄板製のため製作が
容易である。請求項２の発明は前記水平フック継手をも
つセグメントにおける水平フック継手が雌雄両金具で形
成され、同雌雄両金具のうち一方の金具を鉤形断面に形
成し、同一方の金具に係合する他方の金具を前記鉤形断
面部に係合する倒Ｌ形断面に形成したので、前記鉤形断
面部と倒Ｌ形断面部を案内として、アンカー部分がセグ
メントの厚さ方向において同じ位置に位置し、前記相隣
るセグメントは正確にしかも強固に所定位置に、接続さ
れ、相隣るセグメント間に不陸を生じることがない。Further, since the joint metal fitting is made of a steel plate, it is easy to manufacture. According to the invention of claim 2, the horizontal hook joint in the segment having the horizontal hook joint is formed by both male and female metal fittings, and one of the male and female metal fittings is formed into a hook-shaped cross section and is engaged with the same metal fitting. Since the other metal fitting is formed to have an inverted L-shaped cross section that engages with the hook-shaped cross-section, the anchor portion is positioned at the same position in the thickness direction of the segment with the hook-shaped cross-section and the inverted L-shaped cross-section as guides. However, the adjacent segments are accurately and firmly connected to each other at a predetermined position, and there is no occurrence of inconvenience between the adjacent segments.
【図１】本発明に係る水平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 horizontal hook joint according to the present invention.
【図２】前記セグメントの継手部の一部を欠截して示し
た斜視図である。FIG. 2 is a perspective view in which a part of a joint portion of the segment is cut away.
【図３】雄金具の斜視図である。FIG. 3 is a perspective view of a male fitting.
【図４】雌金具の斜視図でる。FIG. 4 is a perspective view of a female fitting.
【図５】２段水平フック継手を示す斜視図である。FIG. 5 is a perspective view showing a two-stage horizontal hook joint.
【図６】２段水平フック継手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 a two-stage horizontal hook joint.
【図７】１段フック継手を示す斜視図である。FIG. 7 is a perspective view showing a one-step hook joint.
【図８】矩形セグメントの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. 8 is an explanatory diagram showing a configuration of a hook joint for one ring of a rectangular segment.
【図９】等大台形セグメントの１リング当りの継手の構
成を示す説明図である。FIG. 9 is an explanatory diagram showing a configuration of a joint per ring of the isosceles trapezoidal segment.
Ａ，Ａ1 ，Ａ2 ，Ａ3 ，Ａ4 ，Ａ5 ，Ａ6 セグメン
ト ａ 継手金具 １ 凹部 ２ 雌金具 ２ａ 鉤形断面
部 ３ 雄金具 ３ａ 係止片 ４ アンカー
筋 ５ ほぞ ６ 通しボル
ト ７ 注入孔 ８ 排気孔A, A 1 , A 2 , A 3 , A 4 , A 5 , A 6 segment a Joint fitting 1 Recess 2 Female fitting 2a Hook-shaped cross section 3 Male fitting 3a Locking piece 4 Anchor bar 5 Tenon 6 Through bolt 7 Injection Hole 8 Exhaust hole
Claims (2)
けるトンネル軸に平行なセグメント継手面を切羽方向に
指向して放射状に拡開した嵌合部を持つ雌金具と、切羽
と反対方向に指向して放射状に拡開した嵌合部を持つ雄
金具とで形成したフック継手をもつセグメントにおい
て、前記雌雄各金具が鋼鉄板で構成されるとともに、同
各金具のアンカー部分がトンネル軸に直角方向に形成さ
れてなることを特徴とする水平フック継手をもつセグメ
ント。1. A female metal fitting having a fitting portion that radially expands a segment joint surface parallel to the tunnel axis in a shield tunnel lining segment, and a radial direction that is opposite to the face. In a segment having a hook joint formed with a male fitting having an expanded fitting portion, each of the male and female fittings is made of a steel plate, and an anchor portion of each of the fittings is formed in a direction perpendicular to the tunnel axis. A segment with a horizontal hook joint characterized by:
継手において、一方の金具を鉤形断面に形成し、同一方
の金具に係合する他方の金具を前記鉤形断面部に係合す
る倒Ｌ形断面に形成し、アンカー部分がセグメントの厚
さ方向に対して同じ位置に位置するように形成されてな
る請求項１記載の水平フック継手をもつセグメント。2. A horizontal hook joint formed of both male and female metal fittings, wherein one of the metal fittings is formed into a hook-shaped cross section and the other metal fitting engaged with the same metal fitting is engaged with the hook-shaped cross section. The segment with a horizontal hook joint according to claim 1, wherein the segment has an inverted L-shaped cross section, and the anchor portion is formed at the same position in the thickness direction of the segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04058495A JP3539698B2 (en) | 1995-02-28 | 1995-02-28 | Segment with horizontal hook joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04058495A JP3539698B2 (en) | 1995-02-28 | 1995-02-28 | Segment with horizontal hook joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08232585A true JPH08232585A (en) | 1996-09-10 |
| JP3539698B2 JP3539698B2 (en) | 2004-07-07 |
Family
ID=12584555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04058495A Expired - Lifetime JP3539698B2 (en) | 1995-02-28 | 1995-02-28 | Segment with horizontal hook joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3539698B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134252A (en) * | 2015-09-24 | 2015-12-09 | 济南轨道交通集团有限公司 | Longitudinal prestress strengthening structure for shield tunnel segments and construction method |
-
1995
- 1995-02-28 JP JP04058495A patent/JP3539698B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134252A (en) * | 2015-09-24 | 2015-12-09 | 济南轨道交通集团有限公司 | Longitudinal prestress strengthening structure for shield tunnel segments and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3539698B2 (en) | 2004-07-07 |
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