JP2001049995A - Segment joint structure - Google Patents

Segment joint structure

Info

Publication number
JP2001049995A
JP2001049995A JP11224206A JP22420699A JP2001049995A JP 2001049995 A JP2001049995 A JP 2001049995A JP 11224206 A JP11224206 A JP 11224206A JP 22420699 A JP22420699 A JP 22420699A JP 2001049995 A JP2001049995 A JP 2001049995A
Authority
JP
Japan
Prior art keywords
segments
segment
hole
joined
engagement body
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.)
Pending
Application number
JP11224206A
Other languages
Japanese (ja)
Inventor
Fumiyuki Yokomizo
文行 横溝
Kunio Takeda
邦夫 武田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Obayashi Corp
Original Assignee
Obayashi Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Obayashi Corp filed Critical Obayashi Corp
Priority to JP11224206A priority Critical patent/JP2001049995A/en
Publication of JP2001049995A publication Critical patent/JP2001049995A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To correctly mount circumferentially adjacent segments on each other in assembling and joining a plurality of segments in a ring shape on an end face in the axial direction of an existing segment ring. SOLUTION: Firstly, as illustrated by the arrow (1), a side edge of a new segment 22 is agreed with a side edge of an existing segment 20, and a solid tapered body 10a is inserted in a notch 20a. Then, as illustrated by the arrow (2), the new segment 22 is moved in the direction of a blank arrow, the solid tapered body 10a is passed into a tapered hole 16a of a movable engagement body 16. After the surface of the solid tapered body 10a is brought into contact with an inner surface of the movable engagement body 16, the movable engagement body 16 is advanced while elastically compressing an elastic material 18. When end faces in the axial direction of both segments 20, 22 are agreed with each other, the reaction F caused by the elasticity of the elastic material 18 is generated, and both segments can surely be tightened without generating any play by this reaction.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、セグメントの継手
構造の改良に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a joint structure of a segment.

【0002】[0002]

【従来の技術】従来、シールド工法において、複数のセ
グメントをリング状に組立接合し、または既設のセグメ
ントリングの軸方向端面に新たなセグメントをリング状
に組立接合する際に、周方向に隣接するセグメント同士
を結合し、または軸方向に隣接するセグメント同士を結
合する継手構造として、楔を打ち込むだけで結合するこ
とができる楔式継手を用いたものが知られている。
2. Description of the Related Art Conventionally, in a shield method, when a plurality of segments are assembled and joined in a ring shape, or when a new segment is assembled and joined in a ring shape to an axial end surface of an existing segment ring, the segments are circumferentially adjacent to each other. 2. Description of the Related Art As a joint structure for connecting segments or connecting segments adjacent in the axial direction, a structure using a wedge-type joint that can be connected simply by driving a wedge is known.

【0003】楔式継手を用いた継手構造は、接合される
一方のセグメントの接続端面に継手本体が組み込まれた
締結具が埋設され、他方のセグメントの接続端面に定着
プレートの中央に継手本体を収容する空間部があり、結
合時に締結用楔(コッタ)を継手本体の中空楔孔に打ち
込むことによって、接合される二つのセグメントを結合
するものである。
[0003] In a joint structure using a wedge-type joint, a fastener having a joint body incorporated therein is buried in a connection end face of one segment to be joined, and a joint body is provided in the center of a fixing plate in a connection end face of the other segment. There is an accommodating space, and the two segments to be joined are joined by driving a fastening wedge (cotter) into the hollow wedge hole of the joint body at the time of joining.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、このよ
うな従来の継手構造にあっては、二つのセグメントの結
合が締結用楔の打ち込みに依存され、結合強度にばら付
きが生じやすく、セグメント間を正確に取り付けること
が困難であるといった課題があった。
However, in such a conventional joint structure, the joining of the two segments depends on the driving of the fastening wedge, and the joining strength is apt to vary, so that the connection between the segments is difficult. There has been a problem that it is difficult to accurately attach.

【0005】この発明は、以上の課題を解決するもので
あって、複数のセグメントをリング状に組立接合し、ま
たは既設のセグメントリングの軸方向端面に新たなセグ
メントをリング状に組立接合する際に、周方向に隣接す
るセグメント同士を結合し、または軸方向に隣接するセ
グメント同士を正確に取り付けることができるようにし
たセグメントの継手構造を提供することを目的とする。
SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems. When a plurality of segments are assembled and joined in a ring shape, or when a new segment is assembled and joined to an axial end surface of an existing segment ring in a ring shape. It is another object of the present invention to provide a joint structure of segments in which segments adjacent in the circumferential direction can be joined or segments adjacent in the axial direction can be accurately attached.

【0006】[0006]

【課題を解決するための手段】以上の目的を達成するた
め、本発明は、複数のセグメントをリング状に組立接合
し、または既設のセグメントリングの軸方向端面に新た
なセグメントをリング状に組立接合する際に、周方向に
隣接するセグメント同士を結合し、または軸方向に隣接
するセグメント同士を結合する継手構造であって、互い
に隣接する一方のセグメントの側縁に設けられたテーパ
状の雄係合体と、他方のセグメントの側縁に設けられ前
記雄係合体を受容する穴が形成された雌係合体とを備
え、前記雌係合体の穴内には、前記雄係合体と接した状
態で該穴内を係合方向に移動可能なテーパ状の可動係合
体と、該可動係合体と前記雌係合体の穴底部との間に介
在された弾性部材とを設けたことを特徴とするものであ
る。なお、図4は、既設のセグメントリング、軸方向、
周方向といった、本願発明を特定する用語の概念を説明
する斜視図である。
SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a method for assembling and joining a plurality of segments in a ring shape or assembling a new segment in a ring shape on an axial end face of an existing segment ring. When joining, it is a joint structure that joins adjacent segments in the circumferential direction or joins adjacent segments in the axial direction, and is a tapered male provided on a side edge of one adjacent segment. An engaging body, and a female engaging body provided on a side edge of the other segment and having a hole for receiving the male engaging body formed therein, in the hole of the female engaging body, in contact with the male engaging body. A movable engagement body having a tapered shape movable in the engagement direction in the hole, and an elastic member interposed between the movable engagement body and a bottom of the hole of the female engagement body. is there. FIG. 4 shows an existing segment ring, an axial direction,
It is a perspective view explaining the concept of the term which specifies this invention, such as a circumferential direction.

【0007】従って、以上の構造において、互いに隣接
する一方のセグメントの雄係合体を他方のセグメントの
雌係合体の穴内に設けられた可動係合体に挿通し、雄係
合体が可動係合体と接した状態で可動係合体が穴内を係
合方向に移動して弾性部材を押圧する。雄係合体の挿通
完了状態では、弾性部材の反力が常時雄係合体側に作用
しているため、その反力によりガタを生ずることなく確
実な締結がなされる。
Accordingly, in the above structure, the male engaging member of one segment adjacent to each other is inserted into the movable engaging member provided in the hole of the female engaging member of the other segment, and the male engaging member contacts the movable engaging member. In this state, the movable engagement body moves in the engagement direction in the hole and presses the elastic member. In the state where the insertion of the male engaging member is completed, the reaction force of the elastic member is constantly acting on the male engaging member side, so that the fastening is securely performed without rattling due to the reaction force.

【0008】[0008]

【発明の実施の形態】以下、本発明の好ましい実施の形
態につき、添付図面を参照して詳細に説明する。図1
は、本発明に係る楔式の雄雌係合体を備えたセグメント
の継手構造を示す。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG.
2 shows a joint structure of a segment provided with a wedge-type male / female engagement body according to the present invention.

【0009】楔式継手は、各セグメントのそれぞれの側
縁に取付けられる雄係合体10と雌係合体12とからな
っている。雄係合体10は、中実テーパ体10a及びこ
れの軸方向一側部に一体化されたウェブ10bと、ウェ
ブ10bの他端に直交して一体化され、セグメント内に
埋込まれるアンカー体10cとからなっている。これに
対し、雌係合体12は、係合体本体14と、係合体本体
14内に挿通される筒形の可動係合体16及び弾性体1
8とからなっている。なお、同図においては、弾性体1
8として圧縮コイルバネを例示しているが、ゴム体その
他の弾性部材に代えることができることは勿論である。
また、可動係合体16は、分割して使用することもでき
る。
The wedge joint comprises a male engaging member 10 and a female engaging member 12 attached to respective side edges of each segment. The male engaging body 10 includes a solid taper body 10a and a web 10b integrated on one axial side thereof, and an anchor body 10c integrated orthogonally to the other end of the web 10b and embedded in a segment. It consists of On the other hand, the female engagement body 12 includes an engagement body 14, a cylindrical movable engagement body 16 inserted into the engagement body 14, and the elastic body 1.
It consists of eight. In addition, in FIG.
Although a compression coil spring is illustrated as 8, it is needless to say that a rubber body or another elastic member can be used.
Further, the movable engagement body 16 can be used by being divided.

【0010】係合体本体14は、四角柱状または円柱状
(この実施形態では、四角形状)の係合ブロック14a
と、これの一側部に連結したウェブ14b、及びウェブ
14bと直交するアンカー体14cとを備えている。係
合ブロック14aには前記可動係合体16及び弾性体1
8を挿通する穴14d、及び穴14dの一側部に縦方向
に連通し、前記雄係合体10側のウェブ10bを挿通す
るスリット14eが形成されている。
The engaging body 14 has a square or cylindrical (in this embodiment, square) engaging block 14a.
And a web 14b connected to one side thereof, and an anchor body 14c orthogonal to the web 14b. The movable block 16 and the elastic body 1
8 is formed, and a slit 14e is formed so as to communicate with the one side of the hole 14d in the longitudinal direction and to insert the web 10b on the male engaging body 10 side.

【0011】可動係合体16には前記中実テーパ体10
aと同一テーパ形状のテーパ穴16aが開口されている
とともに、このテーパ穴16aの一側部には、前記雄係
合体10側のウェブ10bを挿通するスリット16bが
縦方向に形成されている。
The movable engagement member 16 includes the solid taper member 10.
A taper hole 16a having the same taper shape as a is opened, and a slit 16b that penetrates the web 10b on the male engaging body 10 side is formed in one side of the taper hole 16a in the vertical direction.

【0012】次に、以上の構成の楔式継手を用いたセグ
メント間の締結を図2,3を用いて説明する。図2は締
結部分における軸方向断面を示し、また図3(a),
(b)はそのA−A線断面部分における締結手順を示し
ている。各図において、20は図示しない既設セグメン
トリングの周方向端面に複数のセグメントをリング状に
組み立てる際に、当該既設セグメントリングに対し軸方
向に固定されたセグメント、22は既設セグメントリン
グに対し軸方向に接合されるとともに、セグメント20
に対し周方向に接合される新たなセグメントである。
Next, the fastening between the segments using the wedge type joint having the above configuration will be described with reference to FIGS. FIG. 2 shows an axial cross section of the fastening portion, and FIGS.
(B) shows the fastening procedure in the cross section along the line AA. In each of the figures, reference numeral 20 denotes a segment which is axially fixed to the existing segment ring when assembling a plurality of segments in a ring shape on the circumferential end surface of the existing segment ring (not shown); And the segment 20
Is a new segment joined in the circumferential direction.

【0013】既設セグメント20の側縁には切欠20a
が形成され、この切欠20aの後部に雌係合体14を構
成する係合ブロック14aの端部が位置し、その穴14
d内には可動係合体16が穴14dに沿って軸方向に摺
接移動可能に嵌合され、また穴14dの底部と可動係合
体16の前端との間には弾性材18(図3ではゴム体と
して図示している)が介在されている。さらに、新たな
セグメント22の側縁には、切欠20aに対向して雄係
合体10の中実テーパ体10aが軸方向に向けて平行に
突出している。なお、この雌雄係合体10,12の結合
は、一つのセグメントの側縁について単数でもよいが、
軸方向に複数、例えば前後に二つないしは三つあっても
よい。
Notches 20a are formed in the side edges of the existing segment 20.
The end of the engagement block 14a constituting the female engagement body 14 is located at the rear of the notch 20a.
A movable engagement body 16 is fitted inside the hole d so as to be slidable in the axial direction along the hole 14d, and an elastic member 18 (in FIG. 3, between the bottom of the hole 14d and the front end of the movable engagement body 16) (Shown as a rubber body). Further, a solid tapered body 10a of the male engaging body 10 projects in parallel to the axial direction at the side edge of the new segment 22 so as to face the notch 20a. It should be noted that the connection of the male and female engaging members 10 and 12 may be singular for the side edge of one segment,
There may be more than one in the axial direction, for example two or three before and after.

【0014】以上において、まず図3(a)の矢印に
示すように、新たなセグメント22の側縁を既設セグメ
ント20の側縁に一致させることで中実テーパ体10a
を切欠20a内に差込む。次いで、矢印に示すよう
に、当該新たなセグメント22を軸方向前方(白抜き矢
印図示)に移動させると、中実テーパ体10aは可動係
合体16のテーパ孔16a内に挿通され、中実テーパ体
10aの表面が可動係合体16の内面に接した後、弾性
材18を弾性圧縮しつつ可動係合体16を前進させる。
In the above, first, as shown by the arrow in FIG. 3A, the side edge of the new segment 22 is made to coincide with the side edge of the existing segment 20, thereby forming the solid taper body 10a.
Into the notch 20a. Next, as shown by the arrow, when the new segment 22 is moved forward in the axial direction (shown by a white arrow), the solid taper body 10a is inserted into the tapered hole 16a of the movable engagement body 16, and the solid taper is formed. After the surface of the body 10a contacts the inner surface of the movable engagement body 16, the movable engagement body 16 is advanced while elastically compressing the elastic member 18.

【0015】そして、同図(b)に示すごとく、両セグ
メント20,22の軸方向端面が一致した状態では、弾
性材18の弾性による反力Fが生じており、この反力に
よって二つの係合体の軸方向及び周方向を含めた全方向
に多少のズレがあっても、ガタを生ずることなく確実に
締結できることになる。
As shown in FIG. 1B, when the axial end faces of the segments 20 and 22 coincide with each other, a reaction force F is generated due to the elasticity of the elastic member 18, and two reaction forces are generated by the reaction force. Even if there is some misalignment in all directions including the axial direction and the circumferential direction of the union, the fastening can be performed securely without rattling.

【0016】なお、上記実施の形態では、雄係合体1
0,係合体本体14が平板状のアンカー体10c,14
cによって各セグメント22,20内に確実に定着され
ているが、平板状のアンカー体に代えて、ウェブ10
b,14bの側面に溶接等により固着されてウェブより
後方(図2中で左右方向)に延びるアンカー筋を用いて
もよい。この場合、アンカー筋は、ウェブの両側面に固
着してもよいし、一方の側面のみに固着してもよい。ま
た、各側面には、1本ないし2本以上のアンカー筋を固
着してもよいことは勿論である。
In the above embodiment, the male engaging member 1
0, the anchor body 10c, 14 is a flat body
c is securely fixed in each of the segments 22, 20, but instead of the flat anchor body, the web 10
An anchor bar fixed to the side surfaces of the b and 14b by welding or the like and extending rearward (left and right in FIG. 2) from the web may be used. In this case, the anchor streaks may be fixed to both side surfaces of the web, or may be fixed to only one side surface. In addition, one or two or more anchor streaks may be fixed to each side surface.

【0017】また、上記実施の形態では、既設のセグメ
ントリングの軸方向端面に新たなセグメントをリング状
に組立接合する際に、周方向に隣接するセグメント同士
を結合する例を示したが、最初のセグメントリングを組
み立てる際に適用することもできるし、さらに、いずれ
の組立に際しても、軸方向に隣接するセグメント同士す
なわちリング間のセグメント同士を結合する場合に適用
することもできる。
Further, in the above-described embodiment, an example has been described in which, when a new segment is assembled and joined to the axial end face of the existing segment ring in a ring shape, segments adjacent in the circumferential direction are joined. The present invention can be applied to the case of assembling the segment rings described above, and also to the case of connecting the segments adjacent in the axial direction, that is, the segments between the rings in any of the assembling.

【0018】[0018]

【発明の効果】以上の説明により明らかなように、本発
明によるセグメントの継手構造にあっては、既設セグメ
ントリングの周方向端面に複数のセグメントをリング状
に組立接合する際に、周方向に隣接するセグメント同士
を正確に取り付けることができる。
As is apparent from the above description, in the segment joint structure according to the present invention, when a plurality of segments are assembled and joined in a ring shape to the circumferential end face of the existing segment ring, the segments are joined in the circumferential direction. Adjacent segments can be accurately attached.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係るセグメント継手構造を示す分解斜
視図である。
FIG. 1 is an exploded perspective view showing a segment joint structure according to the present invention.

【図2】同継手構造による締結状態を示す軸方向断面図
である。
FIG. 2 is an axial sectional view showing a fastening state by the joint structure.

【図3】(a),(b)は図2のA−A線における締結
手順を示す説明用断面図である。
FIGS. 3 (a) and 3 (b) are cross-sectional views for illustrating a fastening procedure taken along line AA in FIG. 2;

【図4】図4は、既設のセグメントリング、軸方向、周
方向といった、本願発明を特定する用語の概念を説明す
る斜視図である。
FIG. 4 is a perspective view illustrating the concept of terms specifying the present invention, such as an existing segment ring, an axial direction, and a circumferential direction.

【符号の説明】[Explanation of symbols]

10 雄係合体 10a 中実テーパ体 10c アンカー体 12 雌係合体 14 係合ブロック 14d 穴 16 可動係合体 16a テーパ孔 18 弾性体 20 既設セグメント 22 新たなセグメント DESCRIPTION OF SYMBOLS 10 Male engagement body 10a Solid taper body 10c Anchor body 12 Female engagement body 14 Engagement block 14d Hole 16 Movable engagement body 16a Tapered hole 18 Elastic body 20 Existing segment 22 New segment

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 複数のセグメントをリング状に組立接合
し、または既設のセグメントリングの軸方向端面に新た
なセグメントをリング状に組立接合する際に、周方向に
隣接するセグメント同士を結合し、または軸方向に隣接
するセグメント同士を結合する継手構造であって、 互いに隣接する一方のセグメントの側縁に設けられたテ
ーパ状の雄係合体と、他方のセグメントの側縁に設けら
れ前記雄係合体を受容する穴が形成された雌係合体とを
備え、 前記雌係合体の穴内には、前記雄係合体と接した状態で
該穴内を係合方向に移動可能なテーパ状の可動係合体
と、該可動係合体と前記雌係合体の穴底部との間に介在
された弾性部材とを設けたことを特徴とするセグメント
の継手構造。
When a plurality of segments are assembled and joined in a ring shape or a new segment is assembled and joined in a ring shape on an axial end face of an existing segment ring, segments adjacent in the circumferential direction are joined together, Or a joint structure for joining segments adjacent in the axial direction, wherein the male engaging member is provided on a side edge of one of the segments adjacent to each other and the male engaging member is provided on a side edge of the other segment. A female engaging body formed with a hole for receiving the united body, and a tapered movable engaging body that can move in the engaging direction in the hole in contact with the male engaging body in a hole of the female engaging body. And a resilient member interposed between the movable engagement body and the bottom of the hole of the female engagement body.
JP11224206A 1999-08-06 1999-08-06 Segment joint structure Pending JP2001049995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11224206A JP2001049995A (en) 1999-08-06 1999-08-06 Segment joint structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11224206A JP2001049995A (en) 1999-08-06 1999-08-06 Segment joint structure

Publications (1)

Publication Number Publication Date
JP2001049995A true JP2001049995A (en) 2001-02-20

Family

ID=16810196

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11224206A Pending JP2001049995A (en) 1999-08-06 1999-08-06 Segment joint structure

Country Status (1)

Country Link
JP (1) JP2001049995A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003056288A (en) * 2001-08-15 2003-02-26 Tokyu Constr Co Ltd Segment joint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003056288A (en) * 2001-08-15 2003-02-26 Tokyu Constr Co Ltd Segment joint
JP4579464B2 (en) * 2001-08-15 2010-11-10 東急建設株式会社 Segment fitting

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