JPH07252996A - Steel segment - Google Patents

Steel segment

Info

Publication number
JPH07252996A
JPH07252996A JP6066406A JP6640694A JPH07252996A JP H07252996 A JPH07252996 A JP H07252996A JP 6066406 A JP6066406 A JP 6066406A JP 6640694 A JP6640694 A JP 6640694A JP H07252996 A JPH07252996 A JP H07252996A
Authority
JP
Japan
Prior art keywords
main girder
steel
segment
joint
steel segment
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.)
Withdrawn
Application number
JP6066406A
Other languages
Japanese (ja)
Inventor
Atsushi Koizumi
淳 小泉
Takashi Kuga
昂 久我
Hajime Miki
甫 三木
Minoru Hatada
実 鰰田
Yoichi Sano
陽一 佐野
Yoshiro Oikawa
義朗 及川
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.)
Nippon Steel Corp
Original Assignee
Nippon Steel 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP6066406A priority Critical patent/JPH07252996A/en
Publication of JPH07252996A publication Critical patent/JPH07252996A/en
Withdrawn legal-status Critical Current

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  • Lining And Supports For Tunnels (AREA)

Abstract

PURPOSE:To increase strength by providing uneven interlocking sections of one row or more than two parallel rows fitted to each other between main girders and between joint plates, of adjacent steel segments. CONSTITUTION:Main girders 6 are connected to skin plates 5, recessions 8 are provided to one main girder 6 over its entire length, projections 9 are also provided to the other main girder 6 over its entire length and, at the same time, the recessions 8 and projections 9 are fitted to each other. After that, a seal groove 10 is provided between uneven mechanisms of two parallel rows and is filled with sealant such as reforming isobutylene-isoprene rubber, etc. Then, the main girders are connected to each other with a bolt 11. In addition, if necessary, the same uneven fitting sections are provided to joint plates 7 of a segment. According to the constitution, shear force acting on the bolt can be reduced, the segment can correspond to large load such as a great depth shield tunnel, etc., and it can be easily assembled.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、鋼製セグメントに関す
るものである。特に、シールドトンネルにおける上下水
道、電力・通信ケーブル共同溝を始めとして鉄道・道路
用トンネルで、大深度(例えば、20m以上)、異形断
面、高荷重等により作用する断面力の大きい場合の鋼製
セグメントに供することができる。
FIELD OF THE INVENTION This invention relates to steel segments. In particular, in steel tunnels with large cross-section force acting due to large depth (for example, 20 m or more), irregular cross-section, high load, etc. including water and sewerage in shield tunnels, joint grooves for power and communication cables, etc. It can be offered to a segment.

【0002】[0002]

【従来の技術】今日、特に都市の主要道路の地下トンネ
ルは、地下施設の錯綜から大深度での地下空間を利用す
るため、益々地下深くに設置計画がなされる傾向にあ
る。従来トンネル内において鋼製セグメントを配設する
場合、各鋼製セグメントを掘削坑の内周に沿って順次組
立て、相隣接する鋼製セグメントは相互にボルト結合に
より一体化する。このボルトは、鋼製セグメントの主
桁、或いは継手板に沿って適宜な間隔で配備される。図
14において、鋼製セグメント2、3、4の単位とかか
る鋼製セグメントの主桁6と継手板7に配設されたボル
ト孔13を示す。ボルト孔13にボルトを挿通して相隣
接する鋼製セグメントを相互に連結する。
2. Description of the Related Art Today, underground tunnels on major roads in cities, in particular, tend to be installed deeper and deeper underground because of the use of underground space at a great depth due to the complexity of underground facilities. When arranging steel segments in a conventional tunnel, the steel segments are sequentially assembled along the inner circumference of the pit, and the adjacent steel segments are integrated with each other by bolt connection. The bolts are arranged at appropriate intervals along the main girder of the steel segment or the joint plate. FIG. 14 shows the units of the steel segments 2, 3, 4 and the main girders 6 of the steel segments and the bolt holes 13 arranged in the joint plate 7. A bolt is inserted into the bolt hole 13 to connect the adjacent steel segments to each other.

【0003】[0003]

【発明が解決しようとする課題】ところで、鋼製セグメ
ントは地下深度がそれほど深くない浅深度でのシールド
トンネルの場合には十分適応する。この場合、鋼製セグ
メントに発生する断面力(曲げモーメント、軸力及び剪
断力)はそれほど大きくなく、鋼製セグメントのの断面
は主として曲げモーメントの大きさで決定される。とこ
ろが、上述した大深度の深さになると、鋼製セグメント
の断面は主として軸力及び剪断力が断面の決定要素とな
る。そのため、鋼製セグメント間の結合を従来のように
専らボルトのみに依存する方式では、剪断力の増大のた
め、ボルト切れを生じたり、或いはボルト切れには至ら
ぬまでもボルトが変形するということが懸念され、それ
が問題点となる。
By the way, the steel segment is well suited for a shield tunnel at a shallow depth where the depth is not so deep. In this case, the sectional force (bending moment, axial force, and shearing force) generated in the steel segment is not so large, and the cross section of the steel segment is mainly determined by the magnitude of the bending moment. However, when the above-mentioned large depth is reached, mainly the axial force and the shearing force are the determinants of the cross section of the steel segment. Therefore, in the conventional method that relies solely on bolts for connection between steel segments, bolts may break due to increased shear force, or the bolts may deform even before they break. Is a concern, which is a problem.

【0004】かかる事態を回避するには、ボルトの太径
化を図るか、ボルト本数を増加すればよいということに
なるが、ボルト数の増加は地下でのボルト締結のための
人手作業の増加を招き、現在でも問題となっている地下
作業の省力化、合理化等の改善要請に逆行することにな
り、好ましくなく、問題点となる。また、鋼製セグメト
の主桁、継手板への加工精度を要求されるボルト孔の穿
孔は、本数の増加に伴って加工費を増加させることにな
る。
In order to avoid such a situation, the diameter of the bolt should be increased or the number of bolts should be increased. However, the increase in the number of bolts increases the manual work for fastening the bolts underground. This leads to a request for improvement such as labor saving and rationalization of underground work which is still a problem, which is not preferable and becomes a problem. In addition, drilling of bolt holes that require high processing accuracy on the main girder of steel segment and the joint plate increases the processing cost as the number of bolts increases.

【0005】本発明は、かかる問題点を解決し、大深度
等においても、大きい荷重に十分耐え、しかも地下での
施工の品質と能率、省力化に優れた鋼製セグメントを提
供することを目的とする。
It is an object of the present invention to solve the above problems and to provide a steel segment which can withstand a large load even at a large depth and which is excellent in the quality and efficiency of underground construction and labor saving. And

【0006】[0006]

【課題を解決するための手段】前記目的を達成するため
に、本発明は、鋼製セグメントの主桁と継手板の一方も
しくは双方の外面の長手方向に係合部を形成し、該係合
部は相隣接する鋼製セグメントにおいて係合部を形成す
る主桁間、継手板間において相互に嵌合する一列もしく
は平行に二列以上の凹凸構造の一方の凹部又は凸部を設
けて形成したことを特徴とする鋼製セグメントにより構
成される。鋼製セグメントは、構築すべきトンネルの同
一の断面においては、通常最底部の鋼製セグメントを設
置し、両側において順次下から上へ組立て、最後に継手
となる最上部の鋼製セグメントを設置して、その断面全
周の鋼製セグメントの組立てを完結する。鋼製セグメン
トには、この継手鋼製セグメント(Kゼグメントとい
う。)、継手鋼製セグメント(Kゼグメント)と結合す
る鋼製セグメント(Bゼグメントという。)、これら以
外の鋼製セグメント(異形でないという意味での正常な
鋼製セグメント、Aセグメントという。)の三種がある
が、Aセグメントだけでなく、Bセグメント、或いはK
セグメントについても本発明を適用する場合がある。鋼
製セグメントの主桁、継手板の係合部は主桁、継手板の
外面に設けた凹凸構造であり、そのために鋼製セグメン
ト単位の主桁と継手板の外面の長手方向に凹凸構造の一
方の凹部又は凸部を設ける。凹部又は凸部は主桁、或い
は継手板の外面の長手方向に連続的に設けることが強度
上からも、また圧延、熱間押出で製作する素材供給の観
点からも好ましいが、これに限定するものではない。凹
部又は凸部の深さは、外力の大きさ、使用される板厚に
よって異なるが、1mm〜12mm程度あればよい。本
発明においては、このように凹凸の噛み合わせがあるの
で、外力に対して凹凸部が直ちに剪断力の伝達機能を果
たし、ボルトに作用する剪断力を軽減するので、大荷重
が作用して剪断力の大きい大深度シールドトンネル等の
場合において非常に有効である。因に、ボルト方式単味
により鋼製セグメントを接合する場合、摩擦接合ではな
く、ボルトの剪断による接合である。主桁又は継手板に
穿孔するボルト孔は、組立て時のボルト通しのため(ボ
ルト径+3mm)の大きさとなっている。この3mm程
度のボルトとボルト孔との余裕代は鋼製セグメントの組
立て上に必要なものであるが、鋼製セグメントがシール
ドマシーン内から外へ押し出されたとき、外荷重(土荷
重、水圧等)が作用したとき、或いは鋼製セグメントが
変形を起こしたとき、ボルトに剪断力が作用することに
なる。一方、本発明のごとく、主桁、継手板の外面に凹
凸構造を施してあれば、凹凸部がその嵌合機構により直
接的に、また一次的に剪断力を負担し、二次的にボルト
機構が軽減された剪断力を負担することになる。凹凸部
は剪断キーとして働くので、鋼製セグメントの組立て
時、組立て後の使用時における変形を少なくする。凹凸
部はその凹、凸の芯合わせにより鋼製セグメント構造を
好適な組立て形状に維持する。凹凸部の存在により、ボ
ルト自体に作用する剪断力を抑制することができるの
で、大深度等においてもボルト本数を増やすことも、太
径ボルトを使用することも必要ではなくなる。従来ボル
トは剪断力を負担することを主目的としていたが、本発
明では鋼製セグメントの主桁と主桁とを相互に引き寄せ
る接合効果が重要な役割となる。このように、同じくボ
ルトを配設しても、主要な役割はこの接合効果に移行す
ることになる。このため、ボルト本数は、却って2〜3
割程度減少することもできる。
In order to achieve the above-mentioned object, the present invention forms an engaging portion in the longitudinal direction of the outer surface of one or both of the main girder of the steel segment and the joint plate, and the engaging portion is formed. The parts were formed by providing one concave part or convex part of the concavo-convex structure of one row or two or more rows parallel to each other which are fitted to each other between the main girders forming the engaging parts in the steel segments adjacent to each other and the joint plates. It is composed of a steel segment. For steel segments, in the same cross section of the tunnel to be built, usually the bottom steel segment is installed, assembled on both sides sequentially from bottom to top, and finally the top steel segment to be the joint is installed. To complete the assembly of the steel segment of the entire circumference of the cross section. The steel segment includes the joint steel segment (referred to as K segment), the steel segment (referred to as B segment) that is connected to the joint steel segment (K segment), and the other steel segments (meaning that they are not deformed). There are three kinds of normal steel segment, called A segment), but not only A segment but also B segment or K segment.
The present invention may also be applied to segments. The main girder of the steel segment and the engaging part of the joint plate have an uneven structure provided on the outer surface of the main girder and the joint plate.Therefore, the main girder of the steel segment unit and the outer surface of the joint plate have an uneven structure in the longitudinal direction. One concave portion or convex portion is provided. It is preferable to form the concave portions or the convex portions continuously in the longitudinal direction of the main girder or the outer surface of the joint plate from the viewpoint of strength and also from the viewpoint of material supply produced by rolling or hot extrusion, but it is not limited to this. Not a thing. The depth of the concave portion or the convex portion may be about 1 mm to 12 mm, although it depends on the magnitude of the external force and the plate thickness used. In the present invention, because of the meshing of the unevenness in this manner, the uneven portion immediately performs a shearing force transmission function against an external force and reduces the shearing force acting on the bolt, so that a large load acts and shearing occurs. It is very effective in the case of large depth shield tunnels, etc. where the force is large. Incidentally, when the steel segments are simply joined by the bolt method, the joining is not by friction joining but by shearing of bolts. The bolt hole drilled in the main girder or the joint plate has a size of (bolt diameter +3 mm) for passing a bolt during assembly. The allowance between the bolt and the bolt hole of about 3 mm is necessary for assembling the steel segment, but when the steel segment is extruded from the inside of the shield machine, the external load (earth load, water pressure, etc.) ), Or when the steel segment is deformed, a shear force will be applied to the bolt. On the other hand, if the outer surface of the main girder and the joint plate is provided with an uneven structure as in the present invention, the uneven part directly and primarily bears the shearing force by the fitting mechanism, and the bolt is secondarily attached. The mechanism will bear the reduced shear force. Since the uneven portion functions as a shear key, the deformation of the steel segment during assembly and during use after assembly is reduced. The concavo-convex portion maintains the steel segment structure in a suitable assembled shape by centering the concave and convex portions. Since the presence of the uneven portion can suppress the shearing force acting on the bolt itself, it is not necessary to increase the number of bolts or use large-diameter bolts even at a large depth. Conventionally, the main purpose of the bolt was to bear the shearing force, but in the present invention, the main girder of the steel segment and the joining effect of drawing the main girder to each other play an important role. Thus, even if the bolts are also arranged, the main role is to shift to this joining effect. Therefore, the number of bolts should be 2-3
It can be reduced by about 50%.

【0007】本発明は、鋼製セグメントの主桁と継手板
の一方もしくは双方の外面の長手方向に係合部を形成
し、該係合部は相隣接する鋼製セグメントにおいて係合
部を形成する主桁間、継手板間において相互に嵌合する
平行に二列以上の凹凸構造からなり、該凹凸構造の凹部
同士又は凸部同士を相隣接する鋼製セグメントの同一の
主桁側又は同一の継手板側に配設するか、又は該凹凸構
造の凹部と凸部とを主桁又は継手板の巾方向に勝手違い
に配設したことを特徴とする鋼製セグメントにより構成
される。凹部と凸部とを主桁又は継手板の巾方向に勝手
違いに配設することは、素材の供給上有利であるが、こ
れについては後述する。
According to the present invention, an engaging portion is formed in the longitudinal direction of the outer surface of one or both of the main girder of the steel segment and the joint plate, and the engaging portion forms the engaging portion in the adjacent steel segments. Between the main girders, the joint plates are mutually fitted in parallel to each other in two or more rows of concavo-convex structures, and the recesses or protrusions of the concavo-convex structure have the same main girder side or the same side of steel segments adjacent to each other. Of the steel plate, or the concave and convex portions of the concavo-convex structure are arranged in the main girder or the width direction of the joint plate without permission. Arranging the concave portion and the convex portion in the main girder or the joint plate in the width direction in an unfavorable manner is advantageous in terms of supplying the material, which will be described later.

【0008】。本発明は、相隣接する鋼製セグメントの
主桁又は継手板の外面の凹凸構造の凹部の底部と凸部の
頂部との間に間隙を設け、該間隙にシール機構を付与し
てもよい。ここで、シール材としては、例えば変成ブチ
ルゴム、クロロプレンゴム、ウレタンゴム等の公知の材
料を使用条件に応じて適宜選択することができる。
[0008] In the present invention, a gap may be provided between the bottom of the concave portion and the top of the convex portion of the uneven structure on the outer surface of the main girder of the steel segments or the joint plate adjacent to each other, and a sealing mechanism may be added to the gap. Here, as the sealing material, a known material such as modified butyl rubber, chloroprene rubber, and urethane rubber can be appropriately selected according to the use conditions.

【0009】本発明は、係合部を形成する主桁又は継手
板の外面の長手方向にシール溝を設け、該シール溝は相
隣接する主桁又は継手板の一方若しくは双方に凹部も設
けて形成することができる。
According to the present invention, a seal groove is provided in the longitudinal direction of the outer surface of the main girder or the joint plate forming the engaging portion, and the seal groove is also provided with a recess in one or both of the adjacent main girder or joint plate. Can be formed.

【0010】本発明は、相隣接する鋼製セグメントの主
桁又は継手板の外面の長手方向にシール溝を設け、該シ
ール溝は相隣接する一方の主桁又は継手板に凹部を設け
て形成し、該凹部に対面する他の一方の主桁又は継手板
の外面の部分を前記凹部内に突出させて凸部を形成し、
該凹部の底部と該凸部の頂部との間に間隙を残存させて
シール機構を付与することができる。
According to the present invention, a seal groove is provided in the longitudinal direction of the main girders of adjacent steel segments or the outer surface of the joint plate, and the seal groove is formed by providing a recess in one of the adjacent main girders or joint plate. Then, the other one of the main girders facing the recess or the portion of the outer surface of the joint plate is projected into the recess to form a projection,
A seal mechanism can be provided by leaving a gap between the bottom of the recess and the top of the protrusion.

【0011】[0011]

【作用】本発明の鋼製セグメントにおいては、主桁、継
手板の外面に凹凸構造を施してあるので、凹凸部がその
嵌合機構により直接的に、また一次的に剪断力を負担
し、二次的にボルト機構が軽減された剪断力を負担す
る。凹凸部は剪断キーとして働くので、鋼製セグメント
の組立て時、組立て後の使用時における変形を少なく
し、主桁、継手板の外面に施された凹、凸の芯合わせに
より鋼製セグメント構造を好適な組立て形状に維持す
る。また、ボルトは、従来剪断力を負担することを主目
的していたが、本発明では凹凸構造の存在により鋼製セ
グメントの主桁と主桁を引き寄せる接合の役割をも果た
すことになる。
In the steel segment of the present invention, since the outer surface of the main girder and the joint plate is provided with the concavo-convex structure, the concavo-convex portion bears the shearing force directly and primarily by the fitting mechanism, Secondarily, the bolt mechanism bears the reduced shearing force. Since the uneven portion functions as a shear key, it reduces deformation during assembly of the steel segment and during use after assembly, and the steel segment structure is formed by aligning the main girder and the concave and convex cores on the outer surface of the joint plate. Maintain a suitable assembly shape. Further, the bolt has conventionally been mainly intended to bear the shearing force, but in the present invention, due to the presence of the uneven structure, the bolt also plays a role of joining the main girders of the steel segment to each other.

【0012】[0012]

【実施例】以下、本発明の実施例を図面を参照して説明
する。図1〜図4はトンネル全周回りに鋼製セグメント
を組み立てた状態を示す。鋼製セグメント構造1はAセ
グメント2、Bセグメント3、及びKセグメント4によ
り構成される。Kセグメント4は、図1、図2において
は両側の継手板7にテーパーのないもの、図3、図4に
おいては継手板7にテーパーのあるものを示す。
Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 show a state in which steel segments are assembled around the entire circumference of the tunnel. The steel segment structure 1 is composed of an A segment 2, a B segment 3, and a K segment 4. The K segment 4 is shown in FIGS. 1 and 2 in which the joint plates 7 on both sides have no taper, and in FIGS. 3 and 4, the joint plate 7 has a taper.

【0013】図5〜図7は鋼製セグメントの単体を示
し、図5はAセグメント2、図6はBセグメント3、図
7はKセグメント4である。各鋼製セグメントは、スキ
ンプレート5と、その一方の両端に主桁6、他方の両端
に継手板7を備える。主桁6、継手板7に設ける凹凸構
造、シール溝等の詳細は図8〜図12において説明す
る。
5 to 7 show a single steel segment, FIG. 5 is an A segment 2, FIG. 6 is a B segment 3, and FIG. 7 is a K segment 4. Each steel segment includes a skin plate 5, a main girder 6 at one end of the skin plate 5, and a joint plate 7 at the other end. Details of the concavo-convex structure provided on the main girder 6, the joint plate 7 and the seal groove will be described with reference to FIGS. 8 to 12.

【0014】図8は、図2におけるA−A視の断面図で
ある。スキンプレート5、5にそれぞれ主桁6、6が結
合され、一方の主桁6に凹部8、他方の主桁6に凸部9
が主桁全長にわたり設けられる。凹部8と凸部9とは相
互に嵌合状態にある。凹部8深さ、凸部9の高さはそれ
ぞれ2mm〜6mmである。平行に2列の凹凸機構の間
にはシール溝10が設けられ、例えば変成ブチルゴム等
のシール材が充填される。本例においてボルト11によ
り、主桁6、6同士を接合する。
FIG. 8 is a sectional view taken along line AA in FIG. Main girders 6 and 6 are coupled to the skin plates 5 and 5, respectively, and one main girder 6 has a concave portion 8 and the other main girder 6 has a convex portion 9
Is provided over the entire length of the main girder. The concave portion 8 and the convex portion 9 are in a fitted state with each other. The depth of the concave portion 8 and the height of the convex portion 9 are 2 mm to 6 mm, respectively. A seal groove 10 is provided between the two rows of concavo-convex mechanisms in parallel, and is filled with a seal material such as modified butyl rubber. In this example, the bolts 11 join the main girders 6, 6 together.

【0015】図9は主桁6の巾方向に平行2列の凹凸構
造を勝手違いに設けたものである。ここで、シール溝1
0は主桁6の巾の中心に設けられる。このように、勝手
違いに凹部、凸部を設けることは図13で説明するよう
に孔型圧延、或いは熱間押出により主桁6の素材を生
産、供給する上で有利である。
FIG. 9 shows an uneven structure in which two parallel columns are arranged in the width direction of the main girder 6 without permission. Here, the seal groove 1
0 is provided at the center of the width of the main girder 6. As described above, providing concave portions and convex portions in an unfavorable manner is advantageous in producing and supplying the raw material of the main girder 6 by hole rolling or hot extrusion as described in FIG.

【0016】図10は主桁6の一方にのみシール溝10
の凹部を設けた場合を示す。図11は凹凸構造とシール
溝を兼ねたものである。凹部8の底部と凸部9の頂部と
の間にに間隙12を設け、該間隙12にシール材を充填
する。図12は、凹凸構造の凹部8と凸部9の中心線に
沿ってボルト11を貫通させた場合を示す。
FIG. 10 shows the seal groove 10 only on one side of the main girder 6.
The case where the recessed portion is provided is shown. FIG. 11 has a concavo-convex structure and a seal groove. A gap 12 is provided between the bottom of the recess 8 and the top of the protrusion 9, and the gap 12 is filled with a sealing material. FIG. 12 shows a case where the bolt 11 is penetrated along the center lines of the concave portion 8 and the convex portion 9 of the uneven structure.

【0017】以上、凹凸構造は主桁の場合を対象として
説明したが、これらの例を適宜継手板において適用する
ことができる。
Although the concavo-convex structure has been described above for the case of the main girder, these examples can be appropriately applied to the joint plate.

【0018】図13において、主桁、或いは継手板のた
めの素材の断面の例を示す。主桁、或いは継手板の素材
を製作する場合、主桁、或いは継手板の巾を1単位とし
て、一枚の素材である鋼板から数単位の主桁、或いは継
手板が例えばガス切りにより採取できるように、同一の
圧延ロールにより圧延する。図13における例示は、巾
の長さLの主桁(継手板)を3単位圧延する。この場合
図9に示すように勝手違いに2列の凹凸構造が配置して
あれば、図9で示す左右両側一組の主桁6と6を一種類
の孔型の圧延ロールで圧延できることになる。なお、巾
の長さLの1単位分を平鋼として圧延する場合もある。
FIG. 13 shows an example of the cross section of the material for the main girder or the joint plate. When manufacturing the material of the main girder or the joint plate, with the width of the main girder or the joint plate as one unit, several units of the main girder or the joint plate can be collected from a steel plate which is one material by, for example, gas cutting. As described above, rolling is performed by the same rolling roll. In the example shown in FIG. 13, a main girder (joint plate) having a width L is rolled by 3 units. In this case, if two rows of concavo-convex structures are arbitrarily arranged as shown in FIG. 9, the pair of left and right main girders 6 and 6 shown in FIG. 9 can be rolled by one kind of hole type rolling roll. Become. In addition, 1 unit of width L may be rolled as flat steel.

【0019】[0019]

【発明の効果】本発明によれば、次の効果を奏すること
ができる。 (1)鋼製セグメントの主桁、継手板の凹凸構造の凹凸
の噛み合わせにより剪断力の伝達機能を果たし、ボルト
に作用する剪断力を軽減させることができるので、剪断
力の大きい大深度シールドトンネル等の大荷重の作用す
る場合に非常に有効である。 (2)鋼製セグメントの主桁同士、継手板同士は凹凸構
造の凹凸の噛み合わせにより相互に結合するので、外力
が働いた場合に凹凸構造の係合により直接的、一次的に
対抗するので、変形を少なくすることができ、ボルトへ
の負荷を軽減することができる。ボルト本数を減らした
り、細径化を図ることができる。 (3)凹凸構造の凹凸により鋼製セグメントの組立ての
際の芯合わせ作業を容易にし、作業時間を短縮して能率
の向上を図ることができる。また、良好な組立て形状を
確保、維持することができる。このことは、自動組立て
施工に適合することができる。
According to the present invention, the following effects can be obtained. (1) The main girder of the steel segment and the concavo-convex structure of the joint plate mesh with the concavo-convex structure to perform a shearing force transmission function and reduce the shearing force acting on the bolt. It is very effective when a large load such as a tunnel is applied. (2) Since the main girders of the steel segment and the joint plates are connected to each other by the engagement of the concavities and convexities of the concavo-convex structure, when the external force acts, the concavo-convex structure engages directly and primarily. The deformation can be reduced and the load on the bolt can be reduced. It is possible to reduce the number of bolts and reduce the diameter. (3) Due to the concavo-convex structure, the centering work at the time of assembling the steel segment can be facilitated, the working time can be shortened, and the efficiency can be improved. Also, a good assembly shape can be secured and maintained. This can be adapted to automated assembly work.

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

【図1】本発明の鋼製セグメントの組立ての状態を示す
図である。
FIG. 1 is a view showing an assembled state of a steel segment of the present invention.

【図2】図1の平面図である。FIG. 2 is a plan view of FIG.

【図3】本発明の鋼製セグメントの別の組立ての状態を
示す図である。
FIG. 3 is a view showing another assembled state of the steel segment of the present invention.

【図4】図3の平面図である。FIG. 4 is a plan view of FIG.

【図5】Aセグメントを示す図である。(イ)は正面
図、(ロ)は平面図、(ハ)はテーパー面に対して直角
に見た図である。
FIG. 5 is a diagram showing an A segment. (A) is a front view, (B) is a plan view, and (C) is a view seen at right angles to the tapered surface.

【図6】Bセグメントを示す図である。(イ)は正面
図、(ロ)は平面図、(ハ)はテーパー面に対して直角
に見た図である。
FIG. 6 is a diagram showing a B segment. (A) is a front view, (B) is a plan view, and (C) is a view seen at right angles to the tapered surface.

【図7】Kセグメントを示す図である。(イ)は正面
図、(ロ)は平面図、(ハ)はテーパー面に対して直角
に見た図である。
FIG. 7 is a diagram showing a K segment. (A) is a front view, (B) is a plan view, and (C) is a view seen at right angles to the tapered surface.

【図8】図2のA−A視断面における主桁の凹凸構造を
示す図である。
FIG. 8 is a view showing a concavo-convex structure of a main girder in a cross section taken along line AA of FIG.

【図9】主桁の別の凹凸構造を示す図である。FIG. 9 is a view showing another uneven structure of the main girder.

【図10】主桁の別の凹凸構造を示す図である。FIG. 10 is a view showing another uneven structure of the main girder.

【図11】主桁の別の凹凸構造を示す図である。FIG. 11 is a diagram showing another uneven structure of the main girder.

【図12】主桁の別の凹凸構造を示す図である。FIG. 12 is a view showing another uneven structure of the main girder.

【図13】主桁、継手板の素材製造時の断面の例を示
す。
FIG. 13 shows an example of a cross section of a main girder and a joint plate at the time of manufacturing materials.

【図14】従来のボルト方式の鋼製セグメントを示す図
である。(イ)は鋼製セグメント構造の正面図、(ロ)
は鋼製セグメントの単位を示す斜視図である。
FIG. 14 is a view showing a conventional bolt type steel segment. (A) is a front view of the steel segment structure, (b)
FIG. 3 is a perspective view showing a unit of a steel segment.

【符号の説明】[Explanation of symbols]

1 鋼製セグメント構造 2 Aセグメント 3 Bセグメント 4 Cセグメント 5 スキンプレート 6 主桁 7 継手板 8 凹部 9 凸部 10 シール溝 11 ボルト 12 間隙 13 ボルト孔 14 コンクリート 1 Steel segment structure 2 A segment 3 B segment 4 C segment 5 Skin plate 6 Main girder 7 Joint plate 8 Recessed portion 9 Recessed portion 9 Seal groove 11 Bolt 12 Gap 13 Bolt hole 14 Concrete

───────────────────────────────────────────────────── フロントページの続き (72)発明者 三木 甫 東京都千代田区大手町2−6−3 新日本 製鐵株式会社内 (72)発明者 鰰田 実 東京都千代田区大手町2−6−3 新日本 製鐵株式会社内 (72)発明者 佐野 陽一 東京都千代田区大手町2−6−3 新日本 製鐵株式会社内 (72)発明者 及川 義朗 東京都千代田区大手町2−6−3 新日本 製鐵株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiki Miki 2-6-3 Otemachi, Chiyoda-ku, Tokyo Within Nippon Steel Corporation (72) Inventor Minoru Kuroda 2-6-Otemachi, Chiyoda-ku, Tokyo 3 Within Nippon Steel Co., Ltd. (72) Inventor Yoichi Sano 2-6-3 Otemachi, Chiyoda-ku, Tokyo Within Nippon Steel Co., Ltd. (72) Yoshiro Oikawa 2-6-Otemachi, Chiyoda-ku, Tokyo 3 Within Nippon Steel Corporation

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 鋼製セグメントの主桁と継手板の一方も
しくは双方の外面の長手方向に係合部を形成し、該係合
部は相隣接する鋼製セグメントにおいて係合部を形成す
る主桁間、継手板間において相互に嵌合する一列もしく
は平行に二列以上の凹凸構造の一方の凹部又は凸部を設
けて形成したことを特徴とする鋼製セグメント。
1. A main girder of a steel segment and an engaging portion is formed on the outer surface of one or both of the joint plates in the longitudinal direction, and the engaging portion forms an engaging portion on adjacent steel segments. A steel segment, characterized in that it is formed by providing one concave portion or convex portion of the concavo-convex structure of two or more rows arranged in parallel or in parallel with each other between the girders and joint plates.
【請求項2】 鋼製セグメントの主桁と継手板の一方も
しくは双方の外面の長手方向に係合部を形成し、該係合
部は相隣接する鋼製セグメントにおいて係合部を形成す
る主桁間、継手板間において相互に嵌合する平行に二列
以上の凹凸構造からなり、該凹凸構造の凹部同士又は凸
部同士を相隣接する鋼製セグメントの同一の主桁側又は
同一の継手板側に配設するか、又は該凹凸構造の凹部と
凸部とを主桁又は継手板の巾方向に勝手違いに配設した
ことを特徴とする鋼製セグメント。
2. A main girder of a steel segment and an engaging portion is formed on the outer surface of one or both of the joint plates in the longitudinal direction, and the engaging portion forms an engaging portion in adjacent steel segments. The same main girder side or the same joint of steel segments, which are composed of two or more rows of concavo-convex structures that fit in parallel to each other between the girders and between the joint plates, and whose concaves or convexes are adjacent to each other A steel segment, characterized in that it is arranged on the plate side, or the concave and convex portions of the concavo-convex structure are arranged arbitrarily in the width direction of the main girder or joint plate.
【請求項3】 相隣接する鋼製セグメントの主桁又は継
手板の外面の凹凸構造の凹部の底部と凸部の頂部との間
に間隙を設け、該間隙にシール機構を付与した請求項1
又は請求項2記載の鋼製セグメント。
3. A gap is provided between the bottom of the concave portion and the top of the convex portion of the concavo-convex structure on the outer surface of the main girder of the adjacent steel segments or the joint plate, and a sealing mechanism is provided in the gap.
Alternatively, the steel segment according to claim 2.
【請求項4】 係合部を形成する主桁又は継手板の外面
の長手方向にシール溝を設け、該シール溝は相隣接する
主桁又は継手板の一方もしくは双方に凹部を設けて形成
した請求項1、請求項2又は請求項3記載の鋼製セグメ
ント。
4. A seal groove is provided in a longitudinal direction of an outer surface of a main girder or a joint plate which forms an engaging portion, and the seal groove is formed by providing a recess in one or both of the adjacent main girder or joint plate. The steel segment according to claim 1, claim 2 or claim 3.
【請求項5】 相隣接する鋼製セグメントの主桁又は継
手板の外面の長手方向にシール溝を設け、該シール溝は
相隣接する一方の主桁又は継手板に凹部を設けるととも
に、該凹部に対面する他の一方の主桁又は継手板の外面
の部分を前記凹部内に突出させて凸部を設けて形成し、
該凹部の底部と該凸部の頂部との間に間隙を残存させて
シール機構を付与した鋼製セグメント。
5. A main groove of a steel segment adjacent to each other or a joint groove is provided in a longitudinal direction of an outer surface of a joint plate, and the seal groove is provided with a concave portion of one adjacent main girder or joint plate, and the concave portion. A part of the outer surface of the other one of the main girders or the joint plate facing to be formed by forming a convex part by protruding into the concave part,
A steel segment provided with a seal mechanism by leaving a gap between the bottom of the recess and the top of the protrusion.
JP6066406A 1994-03-11 1994-03-11 Steel segment Withdrawn JPH07252996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6066406A JPH07252996A (en) 1994-03-11 1994-03-11 Steel segment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6066406A JPH07252996A (en) 1994-03-11 1994-03-11 Steel segment

Publications (1)

Publication Number Publication Date
JPH07252996A true JPH07252996A (en) 1995-10-03

Family

ID=13314892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6066406A Withdrawn JPH07252996A (en) 1994-03-11 1994-03-11 Steel segment

Country Status (1)

Country Link
JP (1) JPH07252996A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002228090A (en) * 2001-02-06 2002-08-14 Mitsubishi Rayon Co Ltd Panel member, and joining structure thereof
WO2013039315A2 (en) * 2011-09-15 2013-03-21 한국건설기술연구원 Segment structure having vertical strands and horizontal shear keys and method for constructing shield tunnel using same
KR101483763B1 (en) * 2013-10-18 2015-01-19 한국건설기술연구원 Method constructing the shield tunnel using segments with the prestressed strand cables of a longitudinal direction and the shear keys of a horizontal direction
CN106050275A (en) * 2016-07-13 2016-10-26 同济大学 Sealing waterproof device for bolt hole of shield tunnel duct pieces
CN109578016A (en) * 2018-12-30 2019-04-05 中铁十四局集团有限公司 Prefabricated film connection component and inverted arch structure with it
JP2019214830A (en) * 2018-06-11 2019-12-19 日本製鉄株式会社 Segment and segment ring

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002228090A (en) * 2001-02-06 2002-08-14 Mitsubishi Rayon Co Ltd Panel member, and joining structure thereof
JP4716582B2 (en) * 2001-02-06 2011-07-06 三菱レイヨン株式会社 Panel member and joining structure thereof
WO2013039315A2 (en) * 2011-09-15 2013-03-21 한국건설기술연구원 Segment structure having vertical strands and horizontal shear keys and method for constructing shield tunnel using same
WO2013039315A3 (en) * 2011-09-15 2013-05-10 한국건설기술연구원 Segment structure having vertical strands and horizontal shear keys and method for constructing shield tunnel using same
CN103797216A (en) * 2011-09-15 2014-05-14 韩国建设技术研究院 Segment structure having vertical strands and horizontal shear keys and method for constructing shield tunnel using same
KR101470056B1 (en) * 2011-09-15 2014-12-05 한국건설기술연구원 Segment body with the prestressed strand cables of a longitudinal direction and the shear keys of a horizontal direction
CN103797216B (en) * 2011-09-15 2016-06-29 韩国建设技术研究院 There is the tunnel segment structure of longitudinal twisted wire and transverse shearing force key and use the described structure method to build shield tunnel
KR101483763B1 (en) * 2013-10-18 2015-01-19 한국건설기술연구원 Method constructing the shield tunnel using segments with the prestressed strand cables of a longitudinal direction and the shear keys of a horizontal direction
CN106050275A (en) * 2016-07-13 2016-10-26 同济大学 Sealing waterproof device for bolt hole of shield tunnel duct pieces
JP2019214830A (en) * 2018-06-11 2019-12-19 日本製鉄株式会社 Segment and segment ring
CN109578016A (en) * 2018-12-30 2019-04-05 中铁十四局集团有限公司 Prefabricated film connection component and inverted arch structure with it

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