JPH1122393A - Joint method of steel-made segment - Google Patents
Joint method of steel-made segmentInfo
- Publication number
- JPH1122393A JPH1122393A JP9196534A JP19653497A JPH1122393A JP H1122393 A JPH1122393 A JP H1122393A JP 9196534 A JP9196534 A JP 9196534A JP 19653497 A JP19653497 A JP 19653497A JP H1122393 A JPH1122393 A JP H1122393A
- Authority
- JP
- Japan
- Prior art keywords
- segment
- neutral axis
- segments
- joining
- web
- 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]
【発明の属する技術分野】本発明は、鋼製セグメントの
継手方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for joining steel segments.
【０００２】[0002]
【従来の技術】シールドトンネルの構築においては、シ
ールド掘進機の掘進にともない、その後方にセグメント
を組み立ててトンネルを構築してゆく。このセグメント
の組み立てに際して、従来は短ボルトで組み立てる引張
接合方式が一般に利用されている。2. Description of the Related Art In the construction of a shield tunnel, a tunnel is constructed by assembling segments behind the shield tunneling machine as the tunnel machine excavates. Conventionally, when assembling the segments, a tension joining method of assembling with short bolts is generally used.
【０００３】[0003]
【本発明が解決しようとする課題】しかし、異形断面シ
ールドトンネルに用いるセグメントは、一般の円形シー
ルドトンネルのセグメントと異なり、主桁が曲げ部材と
なる。そのために曲げに対して十分な剛性を備えたセグ
メントの継手方法の開発が必要となっている。However, the segment used for the shield tunnel of a modified cross section differs from the segment of a general circular shield tunnel, and the main girder is a bending member. Therefore, it is necessary to develop a joint method for a segment having sufficient rigidity against bending.
【０００４】本発明は上記したような従来の問題を解決
するためになされたもので、曲げに対して十分な耐力を
持つ、鋼製セグメントの継手方法を提供することを目的
とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has as its object to provide a method of joining steel segments having sufficient strength against bending.
【０００５】[0005]
【課題を解決するための手段】上記のような目的を達成
するために、本発明の鋼製セグメントの継手方法は、セ
グメントの接合面の端板を、中立軸よりも上方のみに設
置した鋼製セグメントを使用し、接合に際しては、セグ
メントの中立軸よりも上方の端板は相互に短ボルトによ
って接合し、中立軸よりも下方の開放部には、トンネル
の中心軸方向と直交する主桁のウェブに添接板の一端を
ボルトで固定し、添接板の他端を、隣接するセグメント
の主桁のウェブにボルト止めし、さらに両セグメントの
主桁下フランジを添接板を用いてボルト止めして行う、
鋼製セグメントの継手方法を特徴としたものである。In order to achieve the above object, a method for joining steel segments according to the present invention is directed to a method of joining steel segments in which the end plate of the joining surface of the segments is installed only above the neutral axis. When joining, the end plates above the neutral axis of the segments are mutually joined by short bolts, and the opening below the neutral axis has a main girder perpendicular to the central axis direction of the tunnel. One end of the attachment plate is fixed to the web with bolts, the other end of the attachment plate is bolted to the web of the main girder of the adjacent segment, and the lower flange of the main girder of both segments is further attached using the attachment plate. Do it with bolts,
It is characterized by a method of joining steel segments.
【０００６】[0006]
【本発明の実施の態様】以下図面を参照しながら本発明
の鋼製セグメントの継手方法の実施例について説明す
る。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【０００７】＜イ＞セグメントの形状。 本発明の方法では、鋼製のセグメント１を使用する。そ
してこのセグメント１はその接合面の端板を全面に取り
付けず、中立軸よりも上方のみに端板２を設置する。し
たがって端板２の下半分は開放状態である。<A> Shape of segment In the method according to the invention, a steel segment 1 is used. In this segment 1, the end plate 2 is installed only above the neutral axis without attaching the end plate of the joint surface to the entire surface. Therefore, the lower half of the end plate 2 is open.
【０００８】＜ロ＞端板２の接合。 接合に際して、隣接セグメント１の端板２側を当設する
と、セグメント１の中立軸よりも上方の端板２が接触す
る。そこで端板２を相互に短ボルト３によって接合す
る。<B> End plate 2 joining. At the time of joining, when the end plate 2 side of the adjacent segment 1 is provided, the end plate 2 above the neutral axis of the segment 1 comes into contact. Then, the end plates 2 are joined to each other by short bolts 3.
【０００９】＜ハ＞添接板のボルト固定。 中立軸よりも下方、すなわち端板２の下方は開放状態で
あるから、トンネルの中心軸方向と直交する主桁４のウ
ェブ４１、および主桁４の下側フランジ４２の上下面に
添接板５の一端をボルトで固定する。そしてこの添接板
５の他端を、隣接するセグメント１の主桁４のウェブ４
１および下フランジ４２にボルト止めする。主桁４には
ボルト穴を開口してあり、添接板５にも同一の位置にボ
ルト穴を開口しておく。したがって、主桁４の両側から
ボルトをセットすることは可能であり、ボルト穴から露
出したねじ部にナットを取り付けて締め付ける。こうし
て両セグメント１のボルトによる固定と同時に、セグメ
ント１の内空側の固定を行う。こうしてセグメント１は
地山側はボルトによる固定、内空側は添接板およびボル
トを用いた摩擦接合による固定を行い、強固に一体化す
る。<C> Fixing the bolt of the attachment plate. Since the lower part of the neutral shaft, that is, the lower part of the end plate 2 is in an open state, the web 41 of the main girder 4 orthogonal to the central axis direction of the tunnel and the upper and lower surfaces of the lower flange 42 of the main girder 4 5 is fixed at one end with bolts. The other end of the attachment plate 5 is connected to the web 4 of the main girder 4 of the adjacent segment 1.
1 and the lower flange 42. The main girder 4 is provided with a bolt hole, and the attachment plate 5 is also provided with a bolt hole at the same position. Therefore, it is possible to set bolts from both sides of the main girder 4, and a nut is attached to a screw portion exposed from the bolt hole and tightened. In this way, the fixing of the segments 1 on the inner space side is performed simultaneously with the fixing of the segments 1 by the bolts. In this way, the segments 1 are fixed firmly by bolts on the ground side and fixed by friction joining using the attachment plate and bolts on the inner space side.
【００１０】[0010]
【本発明の効果】本発明の鋼製セグメント１の継手方法
は以上説明したように、セグメント１の中立軸よりも地
山側は端板２をボルトによって固定し、中立軸より引張
側には添接板５をボルト止めし、摩擦接合によって固定
してある。したがって継手部は、曲げに対して主桁４部
分と同等、もしくはそれ以上の十分な剛性を得ることが
できる。As described above, the joint method of the steel segment 1 according to the present invention, as described above, fixes the end plate 2 on the ground side from the neutral axis of the segment 1 with bolts, and attaches the end plate 2 to the tension side from the neutral axis. The contact plate 5 is bolted and fixed by friction welding. Therefore, the joint portion can obtain sufficient rigidity against bending, which is equal to or greater than that of the main girder 4 portion.
【図１】本発明の鋼製セグメントの継手方法の実施例の
説明図。FIG. 1 is an explanatory view of an embodiment of a method for joining steel segments according to the present invention.
【図２】増設フランジに添接板を取り付けた状態の説明
図。FIG. 2 is an explanatory view of a state where an attachment plate is attached to an additional flange.
【図３】セグメントとセグメントとを接合した状態の説
明図。FIG. 3 is an explanatory view of a state where segments are joined together.
フロントページの続き (72)発明者 服部 佳文 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内Continued on the front page (72) Inventor Yoshifumi Hattori 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation
Claims (1)
も上方のみに設置した鋼製セグメントを使用し、 接合に際しては、セグメントの中立軸よりも上方の端板
は相互に短ボルトによって接合し、 中立軸よりも下方の開放部には、 トンネルの中心軸方向と直交する主桁のウェブに、添接
板の一端をボルトで固定し、 添接板の他端を、隣接するセグメントの主桁のウェブに
ボルト止めし、 さらに両セグメントの主桁下フランジを添接板を用いて
ボルト止めして固定して行う、 鋼製セグメントの継手方法1. A steel segment in which the end plates of the joining surfaces of the segments are provided only above the neutral axis, and at the time of joining, the end plates above the neutral axis of the segments are mutually connected by short bolts. At the opening below the neutral axis, one end of the contact plate is fixed to the web of the main girder perpendicular to the center axis direction of the tunnel with bolts, and the other end of the contact plate is connected to the adjacent segment. Bolting to the web of the main girder, and fixing the lower flanges of the main girder of both segments by bolting using an attachment plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19653497A JP3390937B2 (en) | 1997-07-07 | 1997-07-07 | Steel segment fitting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19653497A JP3390937B2 (en) | 1997-07-07 | 1997-07-07 | Steel segment fitting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1122393A true JPH1122393A (en) | 1999-01-26 |
| JP3390937B2 JP3390937B2 (en) | 2003-03-31 |
Family
ID=16359347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19653497A Expired - Fee Related JP3390937B2 (en) | 1997-07-07 | 1997-07-07 | Steel segment fitting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3390937B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007277953A (en) * | 2006-04-07 | 2007-10-25 | Nippon Steel Corp | Segment connecting structure and arrangement structure |
| JP2007277954A (en) * | 2006-04-07 | 2007-10-25 | Nippon Steel Corp | Connecting structure between segment rings |
| JP2008255669A (en) * | 2007-04-05 | 2008-10-23 | Taisei Corp | Segment |
| JP2009270378A (en) * | 2008-05-09 | 2009-11-19 | Taisei Corp | Underground structure |
| JP2012162877A (en) * | 2011-02-04 | 2012-08-30 | Taisei Corp | Construction method for underground structure, and the underground structure |
-
1997
- 1997-07-07 JP JP19653497A patent/JP3390937B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007277953A (en) * | 2006-04-07 | 2007-10-25 | Nippon Steel Corp | Segment connecting structure and arrangement structure |
| JP2007277954A (en) * | 2006-04-07 | 2007-10-25 | Nippon Steel Corp | Connecting structure between segment rings |
| JP2008255669A (en) * | 2007-04-05 | 2008-10-23 | Taisei Corp | Segment |
| JP2009270378A (en) * | 2008-05-09 | 2009-11-19 | Taisei Corp | Underground structure |
| JP2012162877A (en) * | 2011-02-04 | 2012-08-30 | Taisei Corp | Construction method for underground structure, and the underground structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3390937B2 (en) | 2003-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |