JP2013083108A - Jig for mounting segment joint fitting to mold - Google Patents

Jig for mounting segment joint fitting to mold Download PDF

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Publication number
JP2013083108A
JP2013083108A JP2011224442A JP2011224442A JP2013083108A JP 2013083108 A JP2013083108 A JP 2013083108A JP 2011224442 A JP2011224442 A JP 2011224442A JP 2011224442 A JP2011224442 A JP 2011224442A JP 2013083108 A JP2013083108 A JP 2013083108A
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Japan
Prior art keywords
fitting
joint
segment
mold
jig
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Granted
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JP2011224442A
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Japanese (ja)
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JP5882017B2 (en
Inventor
Kazuyuki Honda
和之 本田
Tomohiro Mabuchi
友宏 馬渕
Noriaki Okura
宣秋 大倉
Katsuharu Miyata
勝治 宮田
Tomihisa Inoue
富美久 井上
Hiroaki Yomo
弘章 四方
Keimei Inoue
啓明 井上
Kiyoto Kanemaru
清人 金丸
Toshimitsu Aso
利光 阿曽
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.)
IGARASHI KOGYO KK
TSUZUKI CONCRETE KOGYO KK
Shimizu Construction Co Ltd
Unytite Corp
Shimizu Corp
Original Assignee
IGARASHI KOGYO KK
TSUZUKI CONCRETE KOGYO KK
Shimizu Construction Co Ltd
Unytite Corp
Shimizu Corp
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Priority to JP2011224442A priority Critical patent/JP5882017B2/en
Publication of JP2013083108A publication Critical patent/JP2013083108A/en
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Abstract

PROBLEM TO BE SOLVED: To provide a jig for mounting a joint fitting to a mold with which connection work is facilitated by absorbing variation even if the shape of a fitting part in the joint fitting is varied, by fixing the joint fitting to the mold in such a manner that a fitting position is fixed with respect to a joint surface of a segment.SOLUTION: A mounting jig A is provided for manufacturing a segment using a mold, the segment comprising a sliding joint fitting C including a fitting part 21A on a joint surface of the segment. The mounting jig comprises fitting recesses 3, 4 for accommodating the fitting part 21A of the joint fitting C therein, fixing means for fixing the fitting part 21A within the fitting part 21A, and a mounting part 6 for mounting to the mold.

Description

本発明は、継手面にスライド式の継手金具を備えたコンクリート製のセグメントを型枠
で製造する際に、前記継手金具を型枠に取り付けるための取付治具に関する。 The present invention relates to an attachment jig for attaching the joint fitting to the mold when manufacturing a concrete segment having a slide-type fitting on the joint surface.

従来、コンクリート製のセグメントとセグメントとの連結構造としては、連結板を貫通
した連結ボルトと、この連結ボルトに螺合するナットとで両連結板を締め付けたり、継手
面にオス・メスのくさびをそれぞれ形成し、一方のくさびをスライドして連結する方法な
どがある。 Conventionally, as a connecting structure between segments made of concrete, both connecting plates are tightened with a connecting bolt that penetrates the connecting plate and a nut that is screwed to the connecting bolt, or a male / female wedge is provided on the joint surface. There is a method in which each is formed and one wedge is slid and connected.

上記のようなセグメントとセグメントとの連結構造のうちスライド式の継手では、オス
金具とメス金具をセグメントの継手面に対し所定の嵌め合わせ角度とスライド勾配でもっ
て連結する必要がある。そのため、継手金具の嵌め合わせ形状は高い精度をもつことが要
求され、かなり高価なものとなりやすい。 Of the above-described segment-to-segment connection structure, in a sliding joint, it is necessary to connect the male metal fitting and the female metal fitting to the joint surface of the segment with a predetermined fitting angle and slide gradient. Therefore, the fitting shape of the joint fitting is required to have high accuracy, and is likely to be quite expensive.

このような問題点を解決するものとして、特開平９−２２１９９２号公報の発明（特許
文献１）では、連結作業を容易に短時間で行うことができ、しかも両セグメントの連結を
確実に行うことのできるセグメントの連結構造として鋼矢板の継手部を再利用し、これを
セグメントの連結面の部分に埋設する構成とすることで、継ぎ手部材を安価に供給できる
ものを提案している。 In order to solve such problems, in the invention of Japanese Patent Laid-Open No. 9-221992 (Patent Document 1), the connecting operation can be easily performed in a short time, and the two segments are reliably connected. As a connecting structure of segments, a joint of steel sheet piles is reused, and a structure that embeds it in a portion of the connecting surface of the segment has been proposed.

特開平９−２２１９９２号公報Japanese Patent Laid-Open No. 9-221992 特開平９−１９５６８９号公報Japanese Patent Laid-Open No. 9-195589

しかし、鋼矢板の継手部は、長くロールされた鋼矢板を短冊状に切断したものであるた
め、ロール時の歪みなど他の継手部に比べ形状精度が劣る。したがって、この鋼矢板の継
手部を使用した例えばシールドトンネル覆工用セグメントにあっては、実際の利用にあた
って継手部を嵌め合わせることができない等の問題が発生する場合もある。 However, since the joint portion of the steel sheet pile is obtained by cutting a long-rolled steel sheet pile into a strip shape, the shape accuracy is inferior to other joint portions such as distortion during rolling. Accordingly, for example, in a shield tunnel lining segment using the joint portion of the steel sheet pile, there may be a problem that the joint portion cannot be fitted in actual use.

本発明は、セグメント間の連結にスライド式の継手金具を備えたセグメントを型枠で製
造する際に、前記継手金具がその嵌め合わせ部において形状にばらつきのある精度が劣る
構造のものであっても、継手金具同志の接触部分をセグメントの継手面から所定の位置に
設置することで、確実な継手接続が可能とした継手金具の型枠への取付治具を提供するこ
とを目的とするものである。 The present invention has a structure in which, when a segment having a sliding joint fitting for connection between segments is manufactured with a mold, the joint fitting has a structure with inferior accuracy in shape at the fitting portion. Also, the purpose is to provide a fitting jig for fitting metal fittings that enables secure fitting connection by installing the joints of the fitting fittings at predetermined positions from the joint surface of the segment. It is.

上記の目的を達成するため、請求項１に記載の発明は、セグメント間の継手面に、一方
を嵌合部の側方からスライドさせることで互いに嵌合し、かつ嵌合方向以外の方向の抜け
出しが拘束される断面ほゞＣ型の嵌合部を有するスライド式の継手金具を備えたコンクリ
ート製セグメントを型枠で製造する際の前記継手金具を型枠に取り付けるための取付治具
であって、前記継手金具の嵌合部に対応し、該嵌合部との間に遊びを有する一方向に延び
る嵌合凹部と、側方からスライドさせて嵌合した前記継手金具の嵌合部を前記嵌合凹部内
に固定するための固定手段と、前記継手金具の嵌合部を嵌合凹部内に固定した状態で前記
セグメント製造用型枠に取り付けるための取付部とをそれぞれ備えていることを特徴とす
るセグメント継手金具の型枠への取付治具である。 In order to achieve the above-mentioned object, the invention according to claim 1 is configured such that one side is slid from the side of the fitting portion to the joint surface between the segments, and the fitting surfaces are in directions other than the fitting direction. A mounting jig for mounting the joint fitting to the mold when manufacturing a concrete segment having a slide-type joint fitting having a C-shaped fitting portion having a C-shaped fitting portion that is restrained from being pulled out. Corresponding to the fitting portion of the fitting, and having a fitting recess extending in one direction with play between the fitting portion and the fitting portion of the fitting fitting slid from the side. A fixing means for fixing in the fitting recess, and an attachment portion for attaching to the segment manufacturing form in a state where the fitting portion of the fitting is fixed in the fitting recess. To the form of the segment fitting bracket characterized by A mounting jig.

また、上記の目的を達成するため、請求項２に記載の発明は、前記請求項１に記載の発
明における前記固定手段が、前記嵌合凹部の底壁部に螺合により取付けた継手押さえボル
トの前記底壁部上面から突出する先端部で前記継手金具の嵌合部を押圧し、前記嵌合凹部
内の所定位置に固定する構成としたことを特徴とする。 In order to achieve the above object, the invention according to claim 2 is a joint holding bolt in which the fixing means in the invention according to claim 1 is attached to the bottom wall portion of the fitting recess by screwing. The fitting portion of the joint fitting is pressed by the tip portion protruding from the upper surface of the bottom wall portion, and fixed to a predetermined position in the fitting recess.

そして、上記の目的を達成するため、請求項３に記載の発明は、前記請求項２に記載の
発明における前記継手押さえボルトを、前記各嵌合凹部の底壁部に所定の間隔をおいてそ
れぞれ２本以上取り付けたことを特徴とする。 In order to achieve the above object, the invention according to claim 3 is characterized in that the joint holding bolt in the invention according to claim 2 is spaced from the bottom wall portion of each fitting recess by a predetermined interval. Two or more of each are attached.

そして更に、上記の目的を達成するため、請求項４に記載の発明は、前記請求項１乃至
請求項３に記載の発明にあって、前記嵌合凹部がセグメントの継手面に対して一方向にス
ライド勾配を備えてなる構成としたことを特徴とする。 In order to achieve the above object, the invention according to claim 4 is the invention according to claim 1 to claim 3, wherein the fitting recess is unidirectional with respect to the joint surface of the segment. It is characterized by comprising a slide gradient.

請求項１に係る発明の取付治具を使用することで、セグメント製造時に、継手金具同志
の接触部分をセグメントの継手面から一定の高さに保つことが可能となる。したがって、
前記継手金具がその嵌合部において形状にばらつきのある精度が劣る構造のものであって
も、継手金具同志の接触部分の位置の誤差は小さいので、２ヶ所あるこれらの接触部分を
セグメントの継手面から一定の高さに保つことで、確実な継手接続が可能となる。 By using the mounting jig according to the first aspect of the present invention, it becomes possible to keep the contact portions of the joint fittings at a certain height from the joint surface of the segment during the manufacture of the segment. Therefore,
Even if the joint fitting has a structure with inaccurate shape variation in the fitting portion, the position error of the contact portion between the joint fittings is small. By maintaining a certain height from the surface, a reliable joint connection is possible.

請求項２に記載の発明とすることで、取付治具の嵌合凹部内に嵌合した継手金具の嵌合
部を固定する際には、継手押さえボルトの先端部を前記嵌合凹部方向へ螺進せしめれば済
み、固定作業が容易で且つ確実に固定することが可能である。また、請求項３に記載の発
明とすることで、各継手押さえボルト先端部の前記底壁部上面からの突出高さを微調整す
ることで、前記嵌合凹部内に嵌合した継手金具の嵌合部を任意のスライド勾配に容易に設
置することができるとゝもに、継手金具の嵌合部に対する偏った締め付けによる固定を防
止することが可能となる。 When the fitting portion of the fitting fitting fitted in the fitting recess of the mounting jig is fixed, the tip end portion of the joint holding bolt is moved in the direction of the fitting recess. If it is screwed, it can be fixed easily and securely. Moreover, by setting it as invention of Claim 3, by adjusting the protrusion height from the said bottom wall part upper surface of each joint presser bolt front-end | tip, the fitting metal fitting fitted in the said fitting recessed part is carried out. When the fitting portion can be easily installed at an arbitrary slide gradient, it is possible to prevent fixation by biasing the fitting portion of the fitting to the fitting portion.

請求項４に記載の発明、すなわち、前記嵌合凹部がセグメントの継手面に対して一方向
にスライド勾配を備えた構成としたことで、この取付治具をセグメント製造用の型枠に取
り付けることで、前記スライド式の継手金具の嵌合部に前記嵌合凹部と同じ所定の勾配を
付与することができ、設置作業が容易となる。そして、継手金具に所定の勾配を付けるこ
とで、セグメントを組み立てる際、継手同士のスライドによる嵌合によってセグメント同
志が引き寄せられ、セグメント間の継手面同志を密着させることができるとゝもに、セグ
メント間の連結性能も優れたものとなる。 The invention according to claim 4, that is, the fitting recess is provided with a slide gradient in one direction with respect to the joint surface of the segment, so that the attachment jig is attached to the frame for manufacturing the segment. Thus, the same predetermined gradient as that of the fitting concave portion can be given to the fitting portion of the sliding joint fitting, and the installation work becomes easy. Then, by assembling the segments by attaching a predetermined gradient to the fittings, the segments are attracted by the fitting of the joints by sliding, and the joint surfaces between the segments can be brought into close contact with each other. The connection performance between them is also excellent.

連結する両セグメントの継手面にそれぞれ装着した継手金具の連結状態を示す概略断面図である。It is a schematic sectional drawing which shows the connection state of the coupling metal fitting each attached to the joint surface of both the segments to connect. 本発明に係る第１の実施例の取付治具の斜視図である。It is a perspective view of the attachment jig of the 1st example concerning the present invention. 同図の左側面図である。It is a left view of the same figure. 同図の正面図である。It is a front view of the same figure. 本発明に係る取付治具に継手金具を装填する工程の斜視図である。It is a perspective view of the process of loading a coupling metal fitting into the attachment jig concerning the present invention. 同取付治具に継手金具を固定した状態の正面図である。It is a front view of the state which fixed the joint metal fitting to the attachment jig. 継手金具を固定した取付治具をセグメント製造用型枠に装填する工程を示す斜視図である。It is a perspective view which shows the process of loading the attachment jig | tool which fixed the coupling metal fitting in the segment manufacturing formwork. 継手金具を固定した取付治具をセグメント製造用型枠に固定した状態の断面図である。It is sectional drawing of the state which fixed the attachment jig | tool which fixed the coupling metal fitting to the segment manufacturing formwork. 本発明に係る第２の実施例の取付治具に継手金具を固定し、これをセグメント製造用型枠に取り付けた状態の縦断面図である。It is a longitudinal cross-sectional view of the state which fixed the joint metal fitting to the attachment jig of the 2nd Example concerning the present invention, and attached this to the form for segment manufacture. 本発明に係る第３の実施例の取付治具に継手金具を固定し、これをセグメント製造用型枠に取り付けた状態の縦断面図である。It is a longitudinal cross-sectional view of the state which fixed the joint metal fitting to the attachment jig of the 3rd Example concerning the present invention, and attached this to the form for segment manufacture.

以下、本発明に係る取付治具を、関連する各種の部材との関係を示しながら図面に示す
実施例により詳細に説明する。図１乃至図８において、Ａ1 は本発明に係るスライド式継
手金具の取付治具で、Ｂはシールドトンネル覆工用セグメントであり、Ｂ1 は先組みセグ
メント、Ｂ2 は同セグメントＢ1 に対して円周方向に連結する後組みセグメントである。 Hereinafter, the mounting jig according to the present invention will be described in detail with reference to the embodiments shown in the drawings while showing the relationship with various related members. 1 to 8, A 1 is a mounting jig for a sliding joint fitting according to the present invention, B is a shield tunnel covering segment, B 1 is a pre-assembled segment, and B 2 is the same segment B 1 . On the other hand, it is a rear segment that is connected in the circumferential direction.

Ｃは上記両セグメントＢ1 ，Ｂ2 の接合部の継手面２５，２５に取り付けた断面がほゞ
Ｃ形のスライド式の継手金具で、２１Ａは前記セグメントＢ1 ，Ｂ2 の継手面２５から凹
部２６ａ内に突出している第１，第２の円弧状先端部２２Ａ，２２Ｂからなる嵌合部、２
１Ｂは前記セグメントＢ1 ，Ｂ2 内に埋設されているアンカー部であり、Ｄは前記セグメ
ントＢの継手面２５に前記スライド式の継手金具Ｃを備えた前記シールドトンネル覆工用
セグメントＢを製造する際に使用する型枠である。 C is a sliding joint fitting having a substantially C-shaped section attached to the joint surfaces 25 and 25 of the joint portions of the segments B 1 and B 2 , and 21A is a joint surface 25 of the segments B 1 and B 2. Fitting portion comprising first and second arcuate tip portions 22A and 22B protruding into the recess 26a, 2
1B denotes an anchor portion embedded in the segments B 1 and B 2 , and D denotes the shield tunnel lining segment B including the sliding joint fitting C on the joint surface 25 of the segment B. It is a formwork used when doing.

本発明に係る前記継手金具Ｃの取付治具Ａ1 は、前記シールドトンネル覆工用のセグメ
ントＢを前記型枠Ｄを使用して製造する際に、上部面に前記スライド式の継手金具Ｃを固
定し、下部を前記型枠Ｄに取り付けるように構成したものである。詳しくは、図１乃至図
８に示すように、矩形状の基台１の上部面に、前記継手金具Ｃの嵌合部２１Ａを挿・脱自
在で、かつ所望の傾斜角度で固定可能とした嵌合固定部２を、基台１の下面中央部には前
記取付治具Ａ1 を前記型枠Ｄに取り付けるための取付部６をそれぞれ備えている。 The fitting jig A 1 for the joint fitting C according to the present invention has the sliding joint fitting C on the upper surface when the shield tunnel lining segment B is manufactured using the mold D. The lower part is configured to be fixed to the mold D. Specifically, as shown in FIGS. 1 to 8, the fitting portion 21A of the fitting C can be inserted into and removed from the upper surface of the rectangular base 1 and can be fixed at a desired inclination angle. The fitting fixing portion 2 is provided at the center of the lower surface of the base 1 with an attachment portion 6 for attaching the attachment jig A 1 to the mold D.

前記嵌合固定部２は、前記継手金具Ｃの嵌合部２１Ａに対応し、該嵌合部２１Ａとの間
に遊びを有する一方向に延びる平行な嵌合凹部３，４および両嵌合凹部３，４間に形成し
た嵌合凸部５により構成されている。詳しくは、図１及び図８において、前記基台１の前
部側には、前記継手金具Ｃの嵌合部２１Ａにあって、その一方の円弧状の先端部２２Ａを
右側から挿入することによって嵌合する第１の嵌合凹部３が、後部側には、他方の円弧状
の先端部２２Ｂを同じく右側から挿入することによって嵌合する第２の嵌合凹部４が、そ
して、前記第１と第２の嵌合凹部３，４の中間部には、継手金具Ｃの嵌合部２１Ａにあっ
て、その中央の円弧状凹部２４を同じく右側から挿入することによって嵌合する嵌合凸部
５をそれぞれ備えている。 The fitting fixing portion 2 corresponds to the fitting portion 21A of the joint fitting C, and has parallel fitting recesses 3 and 4 extending in one direction having play between the fitting portion 21A and both fitting recesses. It is comprised by the fitting convex part 5 formed between 3 and 4. FIG. Specifically, in FIGS. 1 and 8, the front side of the base 1 is in the fitting part 21A of the fitting C, and one arcuate tip 22A is inserted from the right side. The first fitting recess 3 to be fitted has a second fitting recess 4 fitted on the rear side by inserting the other arcuate tip 22B from the right side, and the first In the middle of the second fitting recesses 3 and 4, there is a fitting protrusion 21 </ b> A of the fitting C which is fitted by inserting the central arcuate recess 24 from the right side. 5 is provided.

７は前記取付治具Ａ1 の第１と第２の嵌合凹部３，４内にそれぞれ嵌合した前記継手金
具Ｃの先端部２２Ａ，２２Ｂを前記嵌合凹部３，４内に固定するための固定手段で、該固
定手段７は、前記嵌合凹部３，４の底壁部３Ａ，４Ａに所定の間隔をおいて螺合によって
取付けた継手押さえボルト８，８の前記底壁部３Ａ，４Ａ上面から突出する先端部８Ａ，
８Ａで嵌合部２１Ａを押し上げ、円弧状の先端部２２Ａの内周面２２ａを前記嵌合凸部５
の庇部下面５Ａ1 へ、先端部２２Ｂの外周面２２ｂを前記嵌合凹部４の一方壁を構成して
いる箱抜き部２６の天版部下面２６Ａへ向けそれぞれ押し付けることで、前記継手金具Ｃ
の先端部２２Ａ，２２Ｂを前記嵌合凹部３，４内に固定する構造としたものである。 7 for fixing the mounting jig A 1 of the first and the joint fitting C of the distal end portion 22A which fits, respectively in the second fitting recess 3 and 4, the 22B in the fitting recess 3,4 The fixing means 7 includes the bottom wall portion 3A of the joint holding bolts 8 and 8 attached to the bottom wall portions 3A and 4A of the fitting recesses 3 and 4 by screwing at a predetermined interval. 4A tip 8A protruding from the upper surface,
The fitting portion 21A is pushed up by 8A, and the inner peripheral surface 22a of the arcuate tip portion 22A is moved to the fitting convex portion 5.
To eaves bottom surface 5A 1, by pressing respectively toward the outer peripheral surface 22b of the distal end portion 22B to the top plate lower surface 26A of the fitting recess while constituting the walls have the box cut-out portion 26 of 4, the joint fittings C
The front end portions 22A and 22B are fixed in the fitting recesses 3 and 4.

前記継手金具Ｃの嵌合部２１Ａは、上記図６及び図７に示すような構造で前記取付治具
Ａ1 の嵌合固定部２に固定される。そして、このような固定状態が保持された図６及び図
７に示す状態のままで、シールドトンネル覆工用セグメントＢの製造用型枠Ｄの取り付け
位置まで運ばれていき、図８に示すように、前記型枠Ｄに取付部６の部分で固定される。
すなわち、前記継手金具Ｃは、本発明に係る取付治具Ａ1 を介して型枠Ｄの所定位置に設
置し固定されるものであるために、継手金具Ｃの嵌合部２１ＡはセグメントＢの継手面２
５に対し一定の嵌め合わせ位置に固定されることになる。 The fitting portion 21A of the joint fitting C is fixed to the fitting fixing portion 2 of FIG. 6 and the mounting jig A 1 in the structure as shown in FIG. Then, in the state shown in FIGS. 6 and 7 in which such a fixed state is maintained, the shield tunnel lining segment B is carried to the attachment position of the manufacturing form D, as shown in FIG. In addition, the fixing part 6 is fixed to the mold D.
That is, since the fitting C is installed and fixed at a predetermined position of the mold D via the mounting jig A 1 according to the present invention, the fitting portion 21A of the fitting C is made of the segment B. Joint surface 2
5 is fixed at a fixed fitting position.

このように、継手金具Ｃは、セグメントＢの成型時において、位置決めが難しく不安定
な状態にある先端部の嵌合部２１Ａは、前記型枠Ｄに取付部６で固定した取付治具Ａ1 の
嵌合固定部２に固定された状態にある。そして、この状態を保持したまま、図７に示すよ
うに、型枠Ｄに形成した前記取付部６とほゞ同形，同大の貫通縦孔２７内に、基台１の下
面が設置部２８と面接するまで落とし込む。 As described above, the fitting C has the fitting portion 21A at the distal end portion which is difficult to position and in an unstable state when the segment B is molded, and the attachment jig A 1 fixed to the mold D with the attachment portion 6. It is in the state fixed to the fitting fixing | fixed part 2 of. While maintaining this state, as shown in FIG. 7, the lower surface of the base 1 is placed in the installation vertical portion 28 in the through-hole 27 having the same shape and the same size as the mounting portion 6 formed in the mold D. Drop until you have an interview.

つぎに、型枠Ｄの下面に設けたボックス形の取付部材２９に対し螺合によって貫通せし
めた固定ボルト３０を締めつけることで、該固定ボルト３０の上端部３０Ａが螺合した前
記取付部６を介して取付治具Ａ1 を前記型枠Ｄに着脱可能となるように固定する。なお、
図中３１は前記型枠Ｄの内面側にあって、前記基台１の設置部に近接して設けたスライド
方向の凹部を形成するための抜き中子である。 Next, by tightening the fixing bolt 30 screwed into the box-shaped mounting member 29 provided on the lower surface of the mold D, the mounting portion 6 in which the upper end portion 30A of the fixing bolt 30 is screwed is attached. Then, the mounting jig A 1 is fixed to the mold D so as to be detachable. In addition,
In the figure, reference numeral 31 denotes a core that is provided on the inner surface side of the mold D and forms a concave portion in the sliding direction provided close to the installation portion of the base 1.

上記のように、本発明に係る取付治具Ａ1 は、その嵌合固定部２に継手金具Ｃの嵌合部
２１Ａを固定したものをシールドトンネル覆工用セグメントＢの成型用型枠Ｄの取り付け
場所まで運び、図６及び図７に示す状態で、取付治具Ａ1 の取付部６を、基台１の下面が
型枠Ｄの設置部２８と面接するまで貫通縦孔２７内に落とし込んで組み立てる。その後、
図８に示すように、取付部６において取付治具Ａ1 を型枠Ｄに固定ボルト３０により固定
する。 As described above, the mounting jig A 1 according to the present invention is obtained by fixing the fitting part 21A of the fitting C to the fitting fixing part 2 of the molding frame D for the shield tunnel lining segment B. 6 and 7, the mounting portion 6 of the mounting jig A 1 is dropped into the through hole 27 until the lower surface of the base 1 is in contact with the mounting portion 28 of the mold D. Assemble with. after that,
As shown in FIG. 8, the attachment jig A 1 is fixed to the mold D at the attachment portion 6 with fixing bolts 30.

つぎに、前記型枠Ｄ内にその他必要な配筋を設置しコンクリートを打設する。そして、
コンクリート養生後、成型用型枠Ｄに対する取付治具Ａ1 の固定ボルト３０による固定を
解除し、脱型後、継手金具Ｃから取付治具Ａ1 を前記の挿入方向と逆方向に抜き中子３１
により形成した凹部内をスライドさせることで取り外す。取付治具Ａ1 を継手金具Ｃから
取り外すことで、図１に示すように、取付治具Ａ1 の基台１にあってその箱抜き部２６で
セグメントＢに形成された凹部２６ａ内に、継手金具Ｃの第１，第２の円弧状先端部２２
Ａ，２２Ｂがそれぞれ継手面２５の前記凹部２６ａから突出した状態のセグメントＢがで
きあがる。 Next, other necessary reinforcements are placed in the mold D and concrete is placed. And
After the concrete curing, the fixing jig 30 of the mounting jig A 1 with respect to the molding die D is released from the fixing bolt 30. After removing the mold, the mounting jig A 1 is removed from the fitting C in the direction opposite to the insertion direction. 31
It is removed by sliding in the recess formed by the above. By removing the mounting jig A 1 from the joint fitting C, as shown in FIG. 1, in the recess 26a formed in the segment B at the base 1 of the mounting jig A 1 and at the boxed portion 26, First and second arcuate tip portions 22 of the joint fitting C
A segment B in which A and 22B protrude from the recess 26a of the joint surface 25 is completed.

このように、成型されたセグメントＢの継手面２５にあって、該継手面２５の凹部２６
ａ内から突出している継手金具Ｃの嵌合部２１Ａは一定の嵌め合わせ位置に形成される。
したがって、継手金具Ｃの嵌合部２１Ａがその嵌め合わせ部において形状にばらつきがあ
ったり或いは形状誤差があっても、セグメントＢ1 ，Ｂ2 の継手金具Ｃの嵌合部２１Ａ，
２１Ａ同志の嵌め合いは容易であり且つ確実な嵌合が可能となる。すなわち、両継手金具
Ｃ，Ｃの２ヶ所の接触部分２２ａー１と２２ｂー１はセグメントＢの継手面２５から所定
の位置、詳しくは、図１において、先端部２２Ａの内周面２２ａの接触部分２２ａー１は
継手面２５から外側に一定の距離を置いた位置に、他方の先端部２２Ｂの外周面２２ｂの
接触部分２２ｂー１は継手面２５から内側に一定の距離を置いた位置にそれぞれ位置して
いる。 Thus, in the joint surface 25 of the molded segment B, the concave portion 26 of the joint surface 25 is provided.
The fitting part 21A of the fitting C protruding from the inside of a is formed at a fixed fitting position.
Therefore, even if the fitting portion 21A of the joint fitting C has a variation in shape or a shape error in the fitting portion, the fitting portions 21A of the joint fitting C of the segments B 1 and B 2
The fitting between the two members 21A is easy and reliable fitting is possible. That is, the two contact portions 22a-1 and 22b-1 of the joint fittings C, C are in a predetermined position from the joint surface 25 of the segment B. Specifically, in FIG. 1, the contact portion 22a contacts the inner peripheral surface 22a of the tip 22A. The portion 22a-1 is located at a certain distance from the joint surface 25 to the outside, and the contact portion 22b-1 of the outer peripheral surface 22b of the other tip 22B is located at a certain distance from the joint surface 25 to the inside. Each is located.

また、上記のように、取付治具Ａ1 の嵌合凹部３，４内にそれぞれ嵌合した前記継手金
具Ｃの円弧状先端部２２Ａ，２２Ｂは、前記嵌合凹部３，４内で固定手段７で固定される
際に、継手押さえボルト８，８の先端部８Ａ，８Ａで押し上げられる構成としている。し
たがって、前記継手押さえボルト８，８の底壁部３Ａ，４Ａ上面からの突出高さを微調整
することで、継手金具Ｃの嵌合部２１Ａに一方向に所定のスライド勾配、例えば１／１５
〜１／２５のスライド勾配、好ましくは１／２０のスライド勾配を容易に形成することが
できる。 Further, as described above, the arc-shaped tip portion 22A of the joint fitting C which fitted respectively into the fitting recess 3 and 4 of the mounting jig A 1, 22B are fixed means within the fitting recess 3,4 7, it is configured to be pushed up by the tip portions 8 </ b> A and 8 </ b> A of the joint holding bolts 8 and 8. Accordingly, by finely adjusting the protruding height of the joint holding bolts 8 and 8 from the upper surfaces of the bottom wall portions 3A and 4A, a predetermined sliding gradient, for example 1/15, is applied to the fitting portion 21A of the joint fitting C in one direction.
A slide gradient of ˜1 / 25, preferably 1/20, can be easily formed.

このように、継手金具Ｃの嵌合部２１Ａが一方向のスライド勾配を備えることで、両セ
グメントＢ1，Ｂ2をトンネルの円周方向に組み立てる際、先組みセグメントＢ1 の一対の
円弧状先端部２２Ａ，２２Ｂと、後組みセグメントＢ2 の一対の円弧状先端部２３Ａ，２
３Ｂの嵌め合わせ開始時において、継手面２５の凹部２６ａ内に突出している一方の円弧
状先端部２２Ａ，２２Ｂの嵌め合わせ部と、凹部２６ｂ内に突出している他方の円弧状先
端部２３Ａ，２３Ｂの嵌め合わせ部は、前記型枠Ｄの抜き中子３１で形成した図１におけ
る前後方向（トンネル軸方向）に延びる凹部内で、後組みセグメントＢ2 の円弧状先端部
２３Ａ，２３Ｂが先組みセグメントＢ1 の円弧状先端部２２Ａ，２２Ｂ方向へスライドす
ることで嵌合する。 Thus, when the fitting part 21A of the joint fitting C has a unidirectional sliding gradient, when assembling both the segments B 1 and B 2 in the circumferential direction of the tunnel, a pair of arcuate shapes of the pre-assembled segment B 1 tip 22A, 22B and a pair of Kokumi segment B 2 arc-shaped tip portions 23A, 2
At the start of the fitting of 3B, the fitting portion of one arcuate tip 22A, 22B protruding into the recess 26a of the joint surface 25 and the other arcuate tip 23A, 23B protruding into the recess 26b. the mating portion, in a recess extending in a direction (tunnel axis direction) before and after in FIG. 1 formed by punching core 31 of the mold D, arcuate distal portion 23A of Kokumi segment B 2, 23B is Sakikumi The segment B 1 is fitted by sliding in the direction of the arcuate tip 22A, 22B.

そして、前記後組みセグメントＢ2 の円弧状先端部２３Ａ，２３Ｂが先組みセグメント
Ｂ1 の円弧状先端部２２Ａ，２２Ｂとの嵌合の度合いが進んだ嵌め合わせ途中において、
嵌合部２１Ａにはそれぞれスライド勾配があるためスムーズな挿入が可能であること、組
み立て終了時において、継手金具Ｃの嵌合部２１Ａ，２１Ａ同志の嵌合により両セグメン
トＢ1 ，Ｂ2 同志が相対的に引き寄せられ、セグメントＢ1 ，Ｂ2 の継手面２５，２５を
密着させることができる。 The arcuate distal end portion 23A of the rear set segment B 2, 23B are arcuate tip 22A of Sakikumi segments B 1, in the middle fitted progress in the degree of fit with the 22B,
Since each of the fitting portions 21A has a sliding gradient, it can be smoothly inserted, and at the end of the assembly, the fitting portions 21A and 21A of the joint fitting C can be fitted together so that both segments B 1 and B 2 can be connected. The joint surfaces 25 and 25 of the segments B 1 and B 2 can be brought into close contact with each other.

図９に示すものは本発明に係る第２の実施例の取付治具である。この取付治具Ａ2 は、
矩形状の基台５１の左側面部に、前記継手金具Ｃの嵌合部２１Ａを挿・脱自在で、かつ一
方向へ所望の傾斜角度で固定可能とした嵌合固定部５２を、また前記基台５１の四隅には
固定ボルト９により前記型枠Ｄの固定部１０に固定するための固定ボルト挿入孔１１をそ
れぞれ備えている。 FIG. 9 shows a mounting jig according to a second embodiment of the present invention. This mounting jig A 2 is
A fitting fixing portion 52 that allows the fitting portion 21A of the joint fitting C to be inserted / removed and fixed in one direction at a desired inclination angle is also provided on the left side surface of the rectangular base 51. Fixing bolt insertion holes 11 for fixing to the fixing portion 10 of the mold D with fixing bolts 9 are provided at the four corners of the base 51, respectively.

前記嵌合固定部５２は前記継手金具Ｃの嵌合部２１Ａに対応し、該嵌合部２１Ａとの間
に遊びを有する一方向（図９では前後方向）に延びる平行な嵌合凹部５３，５４が、上下
に離間して左側面部から突設した高さの異なる２つの逆Ｌ字形の仕切部材５５，５６によ
り形成されている。 The fitting fixing portion 52 corresponds to the fitting portion 21A of the joint fitting C, and has parallel fitting recesses 53 extending in one direction (the front-rear direction in FIG. 9) having play with the fitting portion 21A. 54 is formed by two inverted L-shaped partition members 55 and 56 having different heights that are spaced apart in the vertical direction and project from the left side surface portion.

詳しくは、図９において、前記基台５１の左側面部には、前記継手金具Ｃの嵌合部２１
Ａにあって、その一方の円弧状の先端部２２Ａを前側又は後側から挿入することによって
嵌合する第１の嵌合凹部５３が逆Ｌ字形の仕切部材５５により、そして、下側には、他方
の円弧状の先端部２２Ｂを同じく前側又は後側から挿入することによって嵌合する第２の
嵌合凹部５４が、前記仕切部材５５及びこれより高さの高い逆Ｌ字形の仕切部材５６によ
りそれぞれ形成されている。 Specifically, in FIG. 9, the left side portion of the base 51 has a fitting portion 21 of the fitting C.
A first fitting recess 53 is fitted by inserting one arcuate tip portion 22A from the front side or the rear side by an inverted L-shaped partition member 55 and on the lower side. The second fitting recess 54, which is fitted by inserting the other arcuate tip portion 22B from the front side or the rear side, has the partition member 55 and an inverted L-shaped partition member 56 having a height higher than the partition member 55. Respectively.

５７は前記継手金具Ｃの円弧状の先端部２２Ａ，２２Ｂを前記第１，第２の嵌合凹部５
３，５４内にそれぞれ固定するための固定手段で、前記取付治具Ａ2 の第１，第２の嵌合
凹部５３，５４内にそれぞれ嵌合した前記継手金具Ｃの円弧状の先端部２２Ａ，２２Ｂを
、前記嵌合凹部５３，５４の底壁部５３Ａ，５４Ａに所定の間隔をおいて螺合によって取
付けた継手押さえボルト５８，５８で抑えて固定するためのものである。 Reference numeral 57 denotes the arcuate tip portions 22A and 22B of the joint fitting C to the first and second fitting recesses 5.
The arcuate tip 22A of the joint fitting C fitted in the first and second fitting recesses 53 and 54 of the mounting jig A 2 by fixing means for fixing in the mounting jig 3 and 54, respectively. , 22B are fixed to the bottom wall portions 53A, 54A of the fitting recesses 53, 54 by being restrained by joint presser bolts 58, 58 attached by screwing at predetermined intervals.

詳しくは、前記嵌合凹部５３，５４の底壁部５３Ａ，５４Ａの上面から突出する継手押
さえボルト５８，５８の先端部５８Ａ，５８Ａで、前記継手金具Ｃの円弧状の先端部２２
Ａ，２２Ｂの外周面をそれぞれ図中左方向へ押し付ける。これにより、先端部２２Ａにあ
ってはその内周面２２ａが仕切部材５５の庇部下面５５Ａに、他方の先端部２２Ｂにあっ
てはその外周面２２ｂが仕切部材５６の庇部下面５６Ｂにそれぞれ押し付けられ、前記継
手金具Ｃの円弧状先端部２２Ａ，２２Ｂの内周面２２ａ，外周面２２ｂは前記嵌合凹部５
３，５４内にそれぞれ、セグメントＢの継手面２５から一定の距離に固定される。 Specifically, the arc-shaped distal end portion 22 of the joint fitting C at the distal end portions 58A and 58A of the joint holding bolts 58 and 58 protruding from the upper surfaces of the bottom wall portions 53A and 54A of the fitting concave portions 53 and 54.
The outer peripheral surfaces of A and 22B are pressed in the left direction in the figure. Thus, the inner peripheral surface 22a of the tip 22A is on the flange lower surface 55A of the partition member 55, and the outer peripheral surface 22b of the other tip 22B is on the flange lower surface 56B of the partition member 56. The inner peripheral surface 22a and the outer peripheral surface 22b of the arcuate tip portions 22A and 22B of the joint fitting C are pressed against the fitting recess 5
3, 54 are fixed at a certain distance from the joint surface 25 of the segment B.

ここで、先の図１に示すように、両セグメントＢ1，Ｂ2の組み立て時において、継手金
具Ｃ，Ｃ同志の接触部分は、図９における前記庇部下面５５Ａの突起部と当接する先端部
２２Ａの内周面２２ａの１ヶ所２２ａー１と、前記庇部下面５６Ｂの突起部と当接する先
端部２２Ｂの外周面２２ｂの１ヶ所２２ｂー１の２ヵ所である。継手金具同志のこの２ヵ
所の接触部分（コントロールポイント）２２ａー１，２２ｂー１は、形状精度が悪い継手
金具同志においてもその位置の誤差は小さい。 Here, as shown in FIG. 1 above, when assembling both the segments B 1 and B 2 , the contact portion of the joint fittings C and C is the tip that comes into contact with the protrusion of the flange lower surface 55A in FIG. There are two locations, one location 22a-1 on the inner circumferential surface 22a of the portion 22A and one location 22b-1 on the outer circumferential surface 22b of the distal end portion 22B that comes into contact with the protruding portion of the flange lower surface 56B. The two contact portions (control points) 22a-1 and 22b-1 of the joint fittings have small positional errors even in joint fittings with poor shape accuracy.

従って、２つのコントロールポイント２２ａー１，２２ｂー１がそれぞれセグメントＢ
の継手面２５から一定の距離であれば、セグメント組立後、両セグメントＢ1，Ｂ2の継手
面同士は同一面となるため、継手接続後の余裕を０ｍｍや１ｍｍなど一定に保つことが可
能となる。なお、図中Ｄー１はセグメントの継手面２５に位置する型枠Ｄにあって、継手
金具Ｃの設置箇所の箱抜き部２６に設けた箱抜き部型枠である。 Therefore, the two control points 22a-1, 22b-1 are segment B
If the distance from the joint surface 25 is constant, the joint surfaces of both segments B 1 and B 2 become the same after assembly of the segments, so the margin after connecting the joints can be kept constant, such as 0 mm or 1 mm. It becomes. In addition, D-1 in the figure is a mold part D located in the mold part D located on the joint surface 25 of the segment, and provided in the box part 26 of the installation location of the joint fitting C.

図１０に示すものは本発明に係る取付治具の第３の実施例である。この取付治具Ａ3 は
前記図９に示す第２の実施例の取付治具Ａ2 とは以下の点で相違するのみである。すなわ
ち、この第３の実施例に示す取付治具Ａ3 は、基台５１の仕切部材５６と箱抜き部２６と
が一体構造となった点で前記図９に示す取付治具Ａ2 と相違するのみであり、その他の構
成は同じである。したがって、同一部分については同一の符号を付し、構成および作用等
に関する詳細な説明は省略する。 FIG. 10 shows a third embodiment of the mounting jig according to the present invention. This attachment jig A 3 differs from the attachment jig A 2 of the second embodiment shown in FIG. 9 only in the following points. That is, the mounting jig A 3 shown in the third embodiment is different from the mounting jig A 2 shown in FIG. 9 in that the partition member 56 of the base 51 and the box opening portion 26 are integrated. However, other configurations are the same. Therefore, the same parts are denoted by the same reference numerals, and detailed description of the configuration and operation is omitted.

Ａ1 ，Ａ2 ，Ａ3 取付治具
１，５１ 基台
２，５２ 嵌合固定部
３，５３ 第１の嵌合凹部
３Ａ，５３Ａ 同底壁部
４，５４ 第２の嵌合凹部
４Ａ，５４Ａ 同底壁部
５ 嵌合凸部
５Ａ 庇部下面
７ 固定手段
８，５８ 継手押さえボルト
８Ａ 同先端部
Ｂ セグメント
Ｃ 継手金具
２１Ａ 嵌合部
２１Ｂ アンカー部
２２Ａ 第１円弧状の先端部
２２ａ 同内周面
２２ａー１ 接触部分
２２Ｂ 第２円弧状の先端部
２２ｂ 同外周面
２２ｂー１ 接触部分
２４ 円弧状の凹部
２５ 継手面
２６ 箱抜き部
２６Ａ 天版部下面
２６ａ・２６ｂ 凹部
２７ 貫通孔
２８ 設置部
２９ 取付部
３０ 固定ボルト
５５・５６ 仕切り部材
Ｄ 型枠
Ｄー１ 箱抜き部型枠 A 1 , A 2 , A 3 mounting jig 1 , 51 base 2 , 52 fitting fixing portion 3, 53 first fitting recess 3A, 53A same bottom wall portion 4, 54 second fitting recess 4A, 54A Same bottom wall part 5 Fitting convex part 5A Bottom face of flange part 7 Fixing means 8,58 Joint holding bolt 8A Same tip part B Segment C Joint metal fitting 21A Fitting part 21B Anchor part 22A First arc-shaped tip part 22a Same inside Peripheral surface 22a-1 Contact portion 22B Second arc-shaped tip 22b Same outer peripheral surface 22b-1 Contact portion 24 Arc-shaped concave portion 25 Joint surface 26 Box opening portion 26A Top plate lower surface 26a / 26b Recessed portion 27 Through hole 28 Installation Part 29 Mounting part 30 Fixing bolt 55/56 Partition member D Formwork D-1 Box extraction part formwork

Claims (4)

セグメント間の継手面に、一方を嵌合部の側方からスライドさせることで互いに嵌合し
、かつ嵌合方向以外の方向の抜け出しが拘束される断面ほゞＣ型の嵌合部を有するスライ
ド式の継手金具を備えたコンクリート製セグメントを型枠で製造する際の前記継手金具を
型枠に取り付けるための取付治具であって、前記継手金具の嵌合部に対応し、該嵌合部と
の間に遊びを有する一方向に延びる嵌合凹部と、側方からスライドさせて嵌合した前記継
手金具の嵌合部を前記嵌合凹部内に固定するための固定手段と、前記継手金具の嵌合部を
嵌合凹部内に固定した状態で前記セグメント製造用型枠に取り付けるための取付部とをそ
れぞれ備えていることを特徴とする継手金具の取付治具。 A slide having a generally C-shaped fitting section that is fitted to each other by sliding one side from the side of the fitting section on the joint surface between the segments and is restrained from coming out in a direction other than the fitting direction. An attachment jig for attaching the joint fitting to the mold when producing a concrete segment having a joint fitting of the type with a mold, and corresponding to the fitting portion of the fitting, the fitting A fitting recess extending in one direction with play therebetween, a fixing means for fixing the fitting portion of the fitting that is slid from the side to be fitted in the fitting recess, and the fitting And a fitting part for attaching to the segment manufacturing form in a state in which the fitting part is fixed in the fitting recess. 前記固定手段が、前記嵌合凹部の底壁部に螺合により取付けた継手押さえボルトの前記
底壁部上面から突出する先端部で前記継手金具の嵌合部を押圧し、前記嵌合凹部内に嵌合
した前記継手金具の嵌合部を所定の位置に固定する構成としたことを特徴とする請求項１
記載の継手金具の取付治具。 The fixing means presses the fitting portion of the fitting fitting at a tip portion protruding from the upper surface of the bottom wall portion of the fitting holding bolt attached to the bottom wall portion of the fitting depression by screwing, 2. The fitting portion of the joint fitting fitted to a fixed position is fixed at a predetermined position.
The fitting fitting mounting jig described. 前記継手押さえボルトを、前記各嵌合凹部の底壁部に所定の間隔をおいて２本以上それ
ぞれ取り付けたことを特徴とする請求項１又は２記載の継手金具の取付治具。 The fitting jig for fittings according to claim 1 or 2, wherein two or more of the joint holding bolts are attached to the bottom wall portion of each fitting recess at a predetermined interval. 前記嵌合凹部が、セグメントの継手面に対して一方向にスライド勾配を備えていること
を特徴とする請求項１乃至３記載の継手金具の取付治具。 The fitting fitting mounting jig according to claim 1, wherein the fitting recess has a sliding gradient in one direction with respect to the joint surface of the segment.
JP2011224442A 2011-10-12 2011-10-12 Fitting fitting mounting jig Active JP5882017B2 (en)

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Application Number Priority Date Filing Date Title
JP2011224442A JP5882017B2 (en) 2011-10-12 2011-10-12 Fitting fitting mounting jig

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JP2013083108A true JP2013083108A (en) 2013-05-09
JP5882017B2 JP5882017B2 (en) 2016-03-09

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111331711A (en) * 2020-02-17 2020-06-26 江苏大学 Tunnel pre-buried groove mould locking device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09221992A (en) * 1996-02-19 1997-08-26 Minoru Yamamoto Joint construction of segment
JPH09242483A (en) * 1996-03-06 1997-09-16 Sato Kogyo Co Ltd L-shaped wedge metal fitting joint structure and installing form structure of this joint metal fitting
JP2000328889A (en) * 1999-05-20 2000-11-28 Minoru Yamamoto Connection structure for segment
JP2005016236A (en) * 2003-06-27 2005-01-20 Kubota Corp Manufacturing method for concrete segment for tunnel
JP2010222811A (en) * 2009-03-23 2010-10-07 Ishikawajima Constr Materials Co Ltd Segment joint structure and form for manufacturing the segment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09221992A (en) * 1996-02-19 1997-08-26 Minoru Yamamoto Joint construction of segment
JPH09242483A (en) * 1996-03-06 1997-09-16 Sato Kogyo Co Ltd L-shaped wedge metal fitting joint structure and installing form structure of this joint metal fitting
JP2000328889A (en) * 1999-05-20 2000-11-28 Minoru Yamamoto Connection structure for segment
JP2005016236A (en) * 2003-06-27 2005-01-20 Kubota Corp Manufacturing method for concrete segment for tunnel
JP2010222811A (en) * 2009-03-23 2010-10-07 Ishikawajima Constr Materials Co Ltd Segment joint structure and form for manufacturing the segment

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