JP2004239062A - Joint device for segment - Google Patents

Joint device for segment Download PDF

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Publication number
JP2004239062A
JP2004239062A JP2004117801A JP2004117801A JP2004239062A JP 2004239062 A JP2004239062 A JP 2004239062A JP 2004117801 A JP2004117801 A JP 2004117801A JP 2004117801 A JP2004117801 A JP 2004117801A JP 2004239062 A JP2004239062 A JP 2004239062A
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Japan
Prior art keywords
joint
female
case
segment
bolt
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JP2004117801A
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JP3818520B2 (en
Inventor
Kentaro Yoshida
田 健太郎 吉
Yukio Tada
田 幸 夫 多
Akira Takuma
間 朗 宅
Kosuke Furuichi
市 耕 輔 古
Yutaka Fujino
野 豊 藤
Yasushi Sakuma
靖 佐久間
Masaru Yajima
島 大 矢
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Kajima Corp
Geostr Corp
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Kajima Corp
Geostr Corp
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Priority to JP2004117801A priority Critical patent/JP3818520B2/en
Publication of JP2004239062A publication Critical patent/JP2004239062A/en
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Publication of JP3818520B2 publication Critical patent/JP3818520B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint device for segments capable of having the smooth inside of each segment to further tighten up and facilitating the tightening work. <P>SOLUTION: In the joint device of the adjoining segments connected to each other with male/ female joints, the female joint (5A) is equipped with a female joint case (35) having an opening in an alignment face side and a nut(36) set in the case, the male joint (4A) is equipped with a male joint case (31) having an opening in the alignment face side, a worm wheel (33) rotated with a worm gear (37) rotatably supported in the case, a joint bolt (32) engaged in the rotational direction in a movable manner in the direction of the axis of the worm wheel and an elastic means (34) energizing the joint bolt (32) in the direction of the female direction. The joint bolt (32) forms a joint screw section (32b) engaged with the nut (36) of the female joint in the opening side, and a reaction force plate (32c) receiving reaction force of the elastic means is formed in the end section on an opposite opening side. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

本発明は、隣接するセグメントの相対する接合面にそれぞれ雄・雌継手を設けて互いに接合するセグメントの継手装置に関する。   TECHNICAL FIELD The present invention relates to a joint device for a segment in which male and female joints are provided on opposing joint surfaces of adjacent segments, and are joined to each other.

図１には、トンネルＴにおけるセグメント１の継手装置による接合状況が示されている。図において、符号２はピース同士を接続する継手装置を示しており、また、符号３はリング同士を接続する継手装置を示している。これらの継手２，３によりセグメント１を順次接合して、トンネルＴの内壁が構築されている。
なお、図示の例では、セグメント１のピース接合面１ａには継手装置２の雄継手４が２個、対向する接合面１ｂには雌継手５が２個、またリング接合面１ｄには継手装置３の雄継手６が２個、対向する接合面１ｃには雌継手７が２個それぞれ設けられている、 FIG. 1 illustrates a joining state of the segment 1 in the tunnel T by the joint device. In the drawing, reference numeral 2 indicates a joint device for connecting pieces, and reference numeral 3 indicates a joint device for connecting rings. The segments 1 are sequentially joined by the joints 2 and 3 to form the inner wall of the tunnel T.
In the illustrated example, two male joints 4 of the joint device 2 are provided on the piece joining surface 1a of the segment 1, two female joints 5 are provided on the opposed joining surface 1b, and a joint device 1 is provided on the ring joining surface 1d. 3, two male joints 6 are provided, and two female joints 7 are provided on the opposing joint surface 1c.

このようなセグメントの接合においては、セグメント内面が平滑であること、セグメントがシールド機の内部から地山に掘削されたトンネル内部に出された後においても継手部の増し締めができること、締結力の管理が容易であること、といったことが要求されている。   In joining such a segment, the inner surface of the segment is smooth, the joint can be retightened even after the segment is taken out from the inside of the shield machine into the tunnel excavated to the ground, It is required that management be easy.

しかしながら、従来の継手装置においては、ボルト継手は、セグメントの内面にボルトボックスを開口してボルトの締結作業を行うため、セグメント内面が平滑ではなく、後からボルトボックスの充填作業が必要である。
そして、ピン継手は、推力ジャッキでセグメントを既設のセグメントに押し付けることで締結するが，セグメントがトンネル内に出た後、継手面が閉じた後に増し締めすることができない。
さらに、くさび式継手は、くさびの効果により継手面にプレストレスを導入することが可能であるが、プレストレスの管理が難しい。
この様に、従来の技術では、セグメントの接合において要求される上述した条件を充足することが困難である、という問題点を有していた。 However, in the conventional joint device, since the bolt joint opens the bolt box on the inner surface of the segment to perform the bolt fastening operation, the inner surface of the segment is not smooth, and the bolt box needs to be filled later.
Then, the pin joint is fastened by pressing the segment against the existing segment with a thrust jack, but after the segment comes out of the tunnel, the joint surface cannot be tightened again after the joint surface is closed.
Furthermore, wedge-type joints can introduce prestress into the joint surface due to the effect of the wedge, but it is difficult to manage the prestress.
As described above, the conventional technique has a problem that it is difficult to satisfy the above-described conditions required for joining the segments.

本発明は、上記の問題点に鑑みて提案されたものであり、セグメント内面が平滑であって、増し締めが可能であり、且つ、締結作業が容易なセグメントの継手装置を提供することを目的としている。   The present invention has been proposed in view of the above problems, and an object of the present invention is to provide a segment joint device in which the inner surface of a segment is smooth, retightening is possible, and the fastening operation is easy. And

本発明のセグメントの継手装置は、隣接するセグメントの相対する接合面にそれぞれ雄・雌継手を設けて互いに接合するセグメントの継手装置において、前記雌継手は接合面側に開口を有する雌継手ケースと、そのケース内に回り止めされたナットとを備えており、前記雄継手は接合面側に開口を有する雄継手ケースと、そのケース内に回転自在に支持されウオームギヤで回転されるウオームホイールと、そのウオームホイールの軸方向に移動自在で回転方向に係止された接合ボルトと、その接合ボルトを雌継手方向に付勢する弾性手段とを備え、前記接合ボルトはその開口側に前記雌継手のナットに係合する接合ねじ部が形成され、反開口側端部に前記弾性手段の反力を受ける反力用プレートが形成されている。   The joint device for a segment according to the present invention is a joint device for a segment in which male and female joints are respectively provided on opposed joint surfaces of adjacent segments and joined to each other, wherein the female joint has a female joint case having an opening on the joint surface side. A male joint case having an opening on the joint surface side, a worm wheel rotatably supported by the worm gear and rotatably supported in the case, comprising: A joint bolt movable in the axial direction of the worm wheel and locked in the rotational direction; andelastic means for urging the joint bolt in the female joint direction. A joining screw portion that engages with the nut is formed, and a reaction force plate that receives the reaction force of the elastic means is formed at the opposite end of the opening.

斯かる構成により、まず予め例えば接着剤などで弾性手段（例えばバネ）を縮めた状態にしておいて雄・雌の両継手を当接し、ウオームギヤを回転すると接合ボルトが回転して接着が離れてバネ力で接合ボルトが押し出される。さらに、ウオームギヤを回転すると、接合ボルトの接合ねじ部が雌継手のナットと螺合し、両継手が接合される。   According to such a configuration, first, the elastic means (for example, a spring) is contracted in advance with, for example, an adhesive or the like, and the male and female joints are brought into contact with each other. The joining bolt is pushed out by the spring force. Further, when the worm gear is rotated, the joining thread of the joining bolt is screwed with the nut of the female joint, and the two joints are joined.

本発明は、以上説明したように構成され以下に示す効果を奏する。
（１） セグメントの内面が平滑で二次覆工が省略できる。
（２） 施工後に継手部の増し締めが可能である。
（３） 施工が容易でコストダウンが可能である。 The present invention is configured as described above and has the following effects.
(1) The inner surface of the segment is smooth and secondary lining can be omitted.
(2) It is possible to retighten the joint after construction.
(3) Construction is easy and cost reduction is possible.

以下、図面を参照して本発明の実施形態を説明する。
図２および図３には、本発明によるセグメントの継手装置の一実施形態の構成が示されている。
図において、セグメントの継手装置２Ａは、接続するセグメント１Ａに設けられた雄継手４Ａと既設セグメント１Ｂに設けられた雌継手５Ａとで構成されている。
その雌継手５Ａは、接合面１ｂに開口３５ａした雌継手ケース３５と、そのケース３５内に回り止めされたナット３６とで構成されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
2 and 3 show a configuration of an embodiment of a segment joint device according to the present invention.
In the figure, a segment joint device 2A includes a male joint 4A provided on the connected segment 1A and a female joint 5A provided on the existing segment 1B.
The female joint 5A includes a female joint case 35 having an opening 35a in the joint surface 1b, and a nut 36 which is prevented from rotating in the case 35.

そして、雄継手４Ａは、接合面１ａに開口した雄継手ケース３１と、そのケース３１内に回転自在に支持されたウオームホイール３３と、そのウオームホイール３３の軸方向Ｘに移動自在で回転方向に係止された接合ボルト３２と、その接合ボルト３２を雌継手方向に付勢するバネ３４とで構成されている。
その接合ボルト３２は、その中間部３２ａは断面が６角形状に形成され、ウオームホイール３３の６角形状の軸孔に挿入されており、軸方向Ｘに摺動自在で且つ回転方向には係止されている。
接合ボルト３２の開口側、即ち中間部３２ａの開口部３１ａ寄りに、雌継手のナット３６に係合する接合ねじ部３２ｂが形成されている。そして、反開口側端部は、バネ３４の反力を受ける反力用プレート３２ｃが形成されている。
なお、符号Ｂは、継手ケース３１，３５をセグメント１に取り付けるためのボルト部材を示している。 The male joint 4A has a male joint case 31 opened to the joint surface 1a, a worm wheel 33 rotatably supported in the case 31, and a worm wheel 33 movable in the axial direction X of the worm wheel 33 in the rotational direction. It is composed of a locked joint bolt 32 and a spring 34 for urging the joint bolt 32 in the female joint direction.
The intermediate portion 32a of the joining bolt 32 has a hexagonal cross section, is inserted into a hexagonal shaft hole of the worm wheel 33, and is slidable in the axial direction X and rotatable in the rotational direction. Has been stopped.
On the opening side of the joining bolt 32, that is, near the opening 31a of the intermediate portion 32a, a joining screw portion 32b that engages with the nut 36 of the female joint is formed. A reaction force plate 32c that receives a reaction force of the spring 34 is formed at the opposite end of the opening.
Reference numeral B indicates a bolt member for attaching the joint cases 31 and 35 to the segment 1.

ウオームホイール３３は、ケース３１に回転自在に支持されており、ケース３１の仮設孔に挿入されるウオームギヤ３７と噛み合って駆動され、接合ボルト３２を回転するように構成されている。
前記接合ボルト端部の反力用プレート３２ｃと、ケース３１の孔端部との間には、接合ボルト３２を開口３１ａ方向に付勢するバネ３４が挿入されているが、初期状態には、このバネ３４は接着剤によって固められ、接合ボルト３２の接合ねじ部３２ｂの先端部が開口３１ａより飛び出ないようにされている。 The worm wheel 33 is rotatably supported by the case 31, and is configured to be driven by meshing with a worm gear 37 inserted into a temporary hole of the case 31 to rotate the joining bolt 32.
A spring 34 for urging the joining bolt 32 in the direction of the opening 31a is inserted between the reaction force plate 32c at the end of the joining bolt and the end of the hole of the case 31, but in an initial state, The spring 34 is solidified by an adhesive so that the tip of the joining screw 32b of the joining bolt 32 does not protrude from the opening 31a.

雄・雌継手４Ａ、５Ａの接合は、バネ３４を縮め固定した状態で雄・雌両継手ケース３１，３５を当接し、ケース３１の仮設孔にウオームギヤ３７を挿入して回転すると、ウオームギヤ３７に噛み合っているウオームホイール３３および接合ボルト３２が回転し、バネ３４の接着が離れて接合ボルト３２がバネ力で押し出される。さらに、ウオームギヤ３７を回転すると、接合ボルト３２の接合ねじ部３２ｂが雌継手のナット３６と螺合し、ナット３６の収納凹部の肩部を介してナット３６は継手ケース３５を継手ケース３１側に引き寄せ、他方、接合ボルト３２は反力用プレート３２ｃ、ウオームホイール３３を介して継手ケース３１を継手ケース３５側に引き寄せることになり、ナット３６、接合ボルトの反力用プレート３２ｃ、ウオームホイール３３を順次介して両継手４Ａ、５Ａが接合される。   The male / female joints 4A, 5A are joined by bringing the male / female joint cases 31, 35 into contact with the spring 34 being compressed and fixed, inserting the worm gear 37 into the temporary hole of the case 31, and rotating the worm gear 37. The meshing worm wheel 33 and the joining bolt 32 rotate, the adhesion of the spring 34 is released, and the joining bolt 32 is pushed out by the spring force. Further, when the worm gear 37 is rotated, the joint screw portion 32b of the joint bolt 32 is screwed with the nut 36 of the female joint, and the nut 36 moves the joint case 35 toward the joint case 31 via the shoulder of the storage recess of the nut 36. On the other hand, the joint bolt 32 draws the joint case 31 toward the joint case 35 via the reaction force plate 32c and the worm wheel 33, and the nut 36, the joint bolt reaction force plate 32c, and the worm wheel 33 are pulled. The two joints 4A and 5A are joined sequentially.

なお、以上の説明において、既設セグメント１Ｂ側を雌継手５（５Ａ）、接合するセグメント１Ａ側を雄継手４（４Ａ）としたが、このように限定するものではない。   In the above description, the existing segment 1B side is the female joint 5 (5A), and the joining segment 1A side is the male joint 4 (4A). However, the present invention is not limited to this.

セグメントの継手装置による接合を説明する斜視図。The perspective view explaining joining by the joint device of a segment. 本発明による継手装置の一実施形態の主要構成を示す斜視図。1 is a perspective view showing a main configuration of an embodiment of a joint device according to the present invention. 図２の継手装置の断面図。FIG. 3 is a sectional view of the joint device of FIG. 2.

符号の説明Explanation of reference numerals

１・・・セグメント
２、２Ａ・・・継手装置
４Ａ・・・雄継手
５Ａ・・・雌継手
３１・・・雄継手ケース
３２・・・接合ボルト
３２ｂ・・・接合ねじ部
３２ｃ・・・反力用プレート
３３・・・ウオームホイール
３４・・・バネ
３５・・・雌継手ケース
３６・・・ナット
３７・・・ウオームギヤ 1 Segment 2, 2A Joint device 4A Male joint 5A Female joint 31 Male joint case 32 Joint bolt 32b Joint screw part 32c Counter Force plate 33: worm wheel 34: spring 35: female joint case 36: nut 37: worm gear

Claims (1)

隣接するセグメントの相対する接合面にそれぞれ雄・雌継手を設けて互いに接合するセグメントの継手装置において、前記雌継手は接合面側に開口を有する雌継手ケースと、そのケース内に回り止めされたナットとを備えており、前記雄継手は接合面側に開口を有する雄継手ケースと、そのケース内に回転自在に支持されウオームギヤで回転されるウオームホイールと、そのウオームホイールの軸方向に移動自在で回転方向に係止された接合ボルトと、その接合ボルトを雌継手方向に付勢する弾性手段とを備え、前記接合ボルトはその開口側に前記雌継手のナットに係合する接合ねじ部が形成され、反開口側端部に前記弾性手段の反力を受ける反力用プレートが形成されていることを特徴とするセグメントの継手装置。 In a joint device for a segment in which male and female joints are provided on opposite joint surfaces of adjacent segments to join each other, the female joint is a female joint case having an opening on the joint surface side, and is prevented from rotating in the case. A male joint case having an opening on the joint surface side, a worm wheel rotatably supported in the case and rotated by a worm gear, and movable in the axial direction of the worm wheel. A joint bolt locked in the rotation direction, and elastic means for urging the joint bolt in the female joint direction, wherein the joint bolt has a joint screw portion on its opening side for engaging a nut of the female joint. A joint device for a segment, wherein a reaction force plate which is formed and receives a reaction force of the elastic means is formed at an end opposite to the opening.
JP2004117801A 2004-04-13 2004-04-13 Segment fitting equipment Expired - Fee Related JP3818520B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004117801A JP3818520B2 (en) 2004-04-13 2004-04-13 Segment fitting equipment

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Application Number Priority Date Filing Date Title
JP2004117801A JP3818520B2 (en) 2004-04-13 2004-04-13 Segment fitting equipment

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2002012633A Division JP3560287B2 (en) 2002-01-22 2002-01-22 Segment coupling equipment

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JP2004239062A true JP2004239062A (en) 2004-08-26
JP3818520B2 JP3818520B2 (en) 2006-09-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111156026A (en) * 2020-03-05 2020-05-15 西南交通大学 Active support prefabricated secondary lining for shield tunnel and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111156026A (en) * 2020-03-05 2020-05-15 西南交通大学 Active support prefabricated secondary lining for shield tunnel and manufacturing method thereof
CN111156026B (en) * 2020-03-05 2021-04-27 西南交通大学 Mounting and using method of active support prefabricated secondary lining for shield tunnel

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