JP3340890B2 - Segment connection structure - Google Patents
Segment connection structureInfo
- Publication number
- JP3340890B2 JP3340890B2 JP21941195A JP21941195A JP3340890B2 JP 3340890 B2 JP3340890 B2 JP 3340890B2 JP 21941195 A JP21941195 A JP 21941195A JP 21941195 A JP21941195 A JP 21941195A JP 3340890 B2 JP3340890 B2 JP 3340890B2
- Authority
- JP
- Japan
- Prior art keywords
- tightening
- cam
- segment
- engaged
- locking member
- 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.)
- Expired - Fee Related
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、シールドトンネル
を掘進する際に使用する覆工用セグメントの連結構造に
関し、主としてセグメントリング間の連結構造、特にト
ンネル軸方向の位置決め連結が容易に行なわれ、かつ大
きな引張力に対してセグメントリングの連続性を確保で
きるセグメントの連結構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure for lining segments used when excavating a shield tunnel, and mainly to a connection structure between segment rings, particularly, a positioning connection in a tunnel axial direction is easily performed. The present invention also relates to a segment connection structure that can ensure continuity of a segment ring against a large tensile force.
【０００２】[0002]
【従来の技術】従来、セグメントの連結構造としては、
実公昭５５−４７９９９号公報に示すように、隣合う
セグメントをボルトにより連結した連結構造、実公昭
５５−３２９５９号公報に示すように、隣合うセグメン
トを、両端にばね座金を係止したピンにより連結する連
結構造が知られている。2. Description of the Related Art Conventionally, as a connecting structure of segments,
As shown in Japanese Utility Model Publication No. 55-47999, a connecting structure in which adjacent segments are connected by bolts, and as shown in Japanese Utility Model Publication No. 55-32959, adjacent segments are connected by pins having spring washers at both ends. A connecting structure for connecting is known.
【０００３】前記の場合、セグメントの連結を簡易、
迅速に行なうことができず、自動組立装置を使用する
と、その構造が複雑で製作費が著るしく高くつく。さら
に、ボルトによりセグメントリングを連結する場合、強
度上問題がある。前記の場合、構造が複雑で製作費が
高く、かつ連結強度が弱いという問題がある。In the above case, the connection of the segments is simplified,
It cannot be done quickly, and the use of automatic assembly equipment makes the structure complicated and extremely expensive to produce. Further, when connecting the segment rings by bolts, there is a problem in strength. In the above case, there is a problem that the structure is complicated, the production cost is high, and the connection strength is weak.
【０００４】前記の欠点を解決したセグメントの連結構
造として、特開平５−２５６０９６号のものが知られて
いる。この特開平５−２５６０９６号には、トンネル軸
方向に連結すべき各セグメントの接合端面の一方に係止
斜面を有する係止部材を設け、他方に前記係止部材が係
合する一対の締付カムを枢軸にばねを介して枢着し、一
方のセグメントの係止部材を他方のセグメントの締付カ
ムに挿入し、この締付カムに係止部材の係止斜面を係止
させることで、両セグメントをトンネル軸方向に容易に
連結できる。Japanese Patent Application Laid-Open No. H5-256096 discloses a segment connecting structure which solves the above-mentioned drawbacks. In this Japanese Patent Application Laid-Open No. H5-256096, a locking member having a locking slope is provided on one of the joining end surfaces of the segments to be connected in the tunnel axial direction, and a pair of tightening members is engaged with the locking member on the other. By pivotally connecting the cam to the pivot via a spring, inserting the locking member of one segment into the tightening cam of the other segment, and locking the locking slope of the locking member to this tightening cam, Both segments can be easily connected in the tunnel axial direction.
【０００５】[0005]
【発明が解決しようとする課題】本発明は特開平５−２
５６０９６号のセグメントの連結構造をさらに改良した
もので、締付カムにロック機構を付加することで、セグ
メントリング間の連結部に強大な引離し力が作用して
も、締付カムが係止部材と離脱する方向に回動するおそ
れをなくし、かつ、締付カムが枢着される枢軸を補強
し、前記連結部がその引張り力に十分に耐えるようにし
たものである。SUMMARY OF THE INVENTION The present invention relates to Japanese Patent Application Laid-Open No. H5-25-2.
No. 56096 is a further improvement of the connecting structure of the segments. By adding a locking mechanism to the tightening cam, the tightening cam is locked even if a strong separating force acts on the connecting portion between the segment rings. This eliminates the possibility of pivoting in the direction of detaching from the member, reinforces the pivot on which the tightening cam is pivotally attached, and allows the connecting portion to sufficiently withstand the pulling force.
【０００６】[0006]
【課題を解決するための手段】前記の課題を解決するた
め、第１発明に係るセグメントの連結構造は、連結すべ
き一方のセグメント１の軸方向端面に、連結すべき他方
のセグメント２に向って突出し、先端に膨出部４を有す
る係止部材３を固定し、前記他方のセグメント２に固定
された支持部材５に間隔をおいて配置された一対の締付
カム６を枢着し、各締付カム６にこれを締付位置に回動
させるばね７を係合させ、かつ前記締付カム６に設けた
係合部６ａに係止するカム押さえ部材１８を設け、前記
係止部材３の膨出部４を一対の締付カム６の間に挿入し
てこれに係合させ、前記カム押さえ部材１８を前記締付
カム６の係合部６ａに係合させた構成を特徴とする。In order to solve the above-mentioned problems, a segment connecting structure according to a first aspect of the present invention is directed to an axial end face of one segment 1 to be connected and a segment connecting structure to the other segment 2 to be connected. And a locking member 3 having a bulging portion 4 at its tip is fixed, and a pair of tightening cams 6 arranged at an interval on a supporting member 5 fixed to the other segment 2 are pivotally connected, A cam holding member 18 is provided for engaging a spring 7 for rotating the tightening cam 6 to the tightening position and locking the engaging cam 6 with the engaging portion 6a provided on the tightening cam 6. 3 is characterized in that the bulging portion 4 is inserted between and engaged with a pair of tightening cams 6, and the cam pressing member 18 is engaged with the engaging portion 6a of the tightening cam 6. I do.
【０００７】また、第２発明に係るセグメントの連結構
造は、連結すべき一方のセグメント１の軸方向端面に、
連結すべき他方のセグメント２に向って突出し、先端に
膨出部４を有する係止部材３を固定し、前記他方のセグ
メント２に両側フレーム２０を固着し、かつ両側フレー
ム２０と上下のカム押さえ部材１８とを枠状に組み固定
ボルト２１により結合して支持部材５を構成し、前記両
側フレーム２０に設けた一対の枢軸１２に締付カム６を
枢着し、各締付カム６にこれを締付位置に回動させるば
ね７を係合させ、前記係止部材３の膨出部４を前記締付
カム６に挿入してこれに係合させ、前記カム押さえ部材
１８を前記締付カム６の係合部６ａに係合させた構成を
特徴とする。[0007] The segment connecting structure according to the second aspect of the present invention includes an axial end face of one of the segments 1 to be connected.
A locking member 3 protruding toward the other segment 2 to be connected and having a swelling portion 4 at its tip is fixed, both side frames 20 are fixed to the other segment 2, and both side frames 20 and upper and lower cam retainers are fixed. The supporting member 5 is formed by assembling the member 18 in a frame shape and connecting with a fixing bolt 21, and the tightening cams 6 are pivotally mounted on a pair of pivots 12 provided on the both side frames 20, and each of the tightening cams 6 Is engaged with the spring 7 for rotating the lock member 3 to the tightening position, and the bulging portion 4 of the locking member 3 is inserted into and engaged with the tightening cam 6, and the cam holding member 18 is tightened by the tightening. A feature is that the cam 6 is engaged with the engaging portion 6a.
【０００８】前記締付カム６の、前記係止部材３との圧
接面６ｂにはローレット加工を施しておくのがよい。The pressing surface 6b of the tightening cam 6 with the locking member 3 is preferably knurled.
【０００９】また、前記一対の枢軸１２はその全長にわ
たり同一径に設けるとよい。It is preferable that the pair of pivots 12 have the same diameter over their entire length.
【００１０】本発明では、両セグメント１，２の連結部
にトンネル軸方向の引離し力が作用するとき、係止部材
３の膨出部４を介してばね７の締付力に抗して締付カム
６が開く方向に力が作用するが、このとき締付カム６の
係合段部６ａに押さえ部材１８が係合していてこれがロ
ック機構となって、締付カム６の回動が確実に制止さ
れ、セグメント連結部に非常に大きな引離し力が作用し
ても、当該セグメント連結部が分離しない。さらに、締
付カム６の係合部６ａがカム押さえ部材１８の係合段部
１８ａと係合することで、締付カム６の外方への移動が
カム押さえ部材１８を介して規制され、それに伴い係止
部材３に加わる引張り力によって発生する枢軸１２の撓
みが抑制される。According to the present invention, when a separating force in the axial direction of the tunnel acts on the connecting portion between the two segments 1 and 2, it is opposed to the tightening force of the spring 7 via the bulging portion 4 of the locking member 3. A force acts in the direction in which the tightening cam 6 opens. At this time, the pressing member 18 is engaged with the engaging step 6a of the tightening cam 6, and this serves as a lock mechanism, and the rotation of the tightening cam 6 Is reliably stopped, and even if a very large separating force acts on the segment connecting portion, the segment connecting portion does not separate. Further, the engagement of the engaging portion 6a of the tightening cam 6 with the engaging step 18a of the cam pressing member 18 restricts the outward movement of the tightening cam 6 via the cam pressing member 18, Accordingly, the bending of the pivot 12 caused by the tensile force applied to the locking member 3 is suppressed.
【００１１】[0011]
【発明の実施の形態】以下本発明の実施例を図を参照し
て説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【００１２】図１から図１０は、本発明の実施例を示す
もので、連結すべきセグメント１，２が鋼殻とその中に
充填されたコンクリート９とにより構成され、一方のセ
グメント１の鋼殻８におけるトンネル軸方向の端部のウ
エブ１０に、他方のセグメント２の鋼殻８におけるトン
ネル軸方向の端部のウエブ１１に向って突出する係止部
材３が溶接により固着されている。この係止部材３の先
端側における巾方向（セグメント厚さ方向）の両側に
は、当該係止部材３の先端縁に向って拡大するように傾
斜する係止斜面４ａを有する膨出部４が設けられてい
る。FIG. 1 to FIG. 10 show an embodiment of the present invention, in which segments 1 and 2 to be connected are constituted by a steel shell and concrete 9 filled therein, An engaging member 3 projecting toward a web 11 at an end in the tunnel axial direction of the steel shell 8 of the other segment 2 is fixed to a web 10 at an end in the tunnel axial direction of the shell 8 by welding. On both sides in the width direction (segment thickness direction) of the distal end side of the locking member 3, bulging portions 4 having locking slopes 4 a that are inclined so as to expand toward the distal end edge of the locking member 3 are provided. Is provided.
【００１３】前記他方のセグメント２におけるウエブ１
１に、前記係止部材３の側方に対向する位置において支
持部材５の一部を構成する両側フレーム２０の基端部
が、溶接により固着されている。支持部材５は、この両
側フレーム２０の上下端にカム押さえ部材１８を配置し
て枠状に組み、当該カム押さえ部材１８に形成したボル
ト挿入孔２２に挿入する六角穴付きの固定ボルト２１
を、前記両側フレーム２０の上下端面に形成した雌ねじ
２３に螺合することで両側フレーム２０と上下のカム押
さえ部材１８を強固に結合して構成することができる。
なお、固定ボルト２１に代えて溶接により両側フレーム
２０とカム押さえ部材１８を固定してもよい。The web 1 in the other segment 2
1, a base end portion of both side frames 20 which constitute a part of the support member 5 at a position facing the side of the locking member 3 is fixed by welding. The support member 5 is formed by arranging the cam pressing members 18 at the upper and lower ends of the both side frames 20 to form a frame shape, and fixing bolts 21 having hexagonal holes to be inserted into the bolt insertion holes 22 formed in the cam pressing members 18.
Are screwed into female screws 23 formed on the upper and lower end surfaces of the both-side frames 20, whereby the both-side frames 20 and the upper and lower cam pressing members 18 can be firmly connected.
Note that, instead of the fixing bolt 21, the both-side frames 20 and the cam pressing member 18 may be fixed by welding.
【００１４】所定の間隔をあけて配置される前記両側フ
レーム２０の上下方向中間位置から、均等間隔離れて形
成された軸孔２５を枢軸１２の両端部が貫通しており、
両側フレーム２０の外側において、この両側フレーム２
０と枢軸１２とが溶接部２４により固着されている。Both ends of the pivot 12 pass through shaft holes 25 formed at equal intervals from the vertical middle position of the both-side frames 20 arranged at a predetermined interval,
Outside the two side frames 20, the two side frames 2
0 and the pivot 12 are fixed by a weld 24.
【００１５】枢軸１２には前記係止部材３の膨出部４の
係止斜面４ａに係合される締付カム６が枢着され、各締
付カム６には、これを締付位置に回動させるばね７が係
合されている。ばね７の配置位置と反対側で、かつ締付
カム６と左側フレーム２０との間には、枢軸１２にカラ
ー２７が嵌合されている。A tightening cam 6 which is engaged with the locking slope 4a of the bulging portion 4 of the locking member 3 is pivotally mounted on the pivot 12, and each of the tightening cams 6 is brought to a tightening position. The pivoting spring 7 is engaged. A collar 27 is fitted to the pivot 12 on the side opposite to the position where the spring 7 is arranged and between the tightening cam 6 and the left frame 20.
【００１６】前記締付カム６の、係止部材３との圧接面
６ｂにはローレット加工が施されており、この係止部材
３と圧接面６ｂとの摩擦抵抗を増大している。さらに、
圧接面６ｂと枢軸１２を挾んで反対側の位置に係合部６
ａが設けられており、他方、これに対応してカム押さえ
部材１８には、前記係合部６ａと係合する係合段部１８
ａが設けられていて、この係合部６ａと係合段部１８ａ
との係合により、係止部材３が離脱する方向へ締付カム
６が回転するのを阻止することができる。The pressing surface 6b of the tightening cam 6 with the locking member 3 is knurled to increase the frictional resistance between the locking member 3 and the pressing surface 6b. further,
The engaging portion 6 is located at a position opposite to the pressing surface 6 b and the pivot 12.
a on the other hand, correspondingly, the cam pressing member 18 has an engaging step 18 that engages with the engaging portion 6a.
a, and the engaging portion 6a and the engaging step portion 18a are provided.
, It is possible to prevent the tightening cam 6 from rotating in the direction in which the locking member 3 is disengaged.
【００１７】支持部材５は、これをセグメント２のウエ
ブ１１に固着する前の段階では、単体（ユニット）で構
成されており、固定ボルト２１を雌ねじ２３に螺合して
両側フレーム２０の上下端にカム押さえ部材１８を連結
し、この状態で両側フレーム２０をウエブ１１に固着す
る。Before the support member 5 is fixed to the web 11 of the segment 2, the support member 5 is formed as a single unit. , And the both-side frames 20 are fixed to the web 11 in this state.
【００１８】前述のように支持部材５はセグメント２の
ウエブ１１に固着する前に予め、両側フレーム２０と、
上下カム押さえ部材１８とが固定ボルト２１により枠形
に組まれたユニットとして作成されており、この状態で
両側フレーム２０の軸孔２５に枢軸１２を挿入したう
え、溶接部２４を溶接して枢軸１２を両側フレーム２０
に固着するものであり、それにより枢軸１２は、全長に
わたり同一径に設けることが可能となっている。As described above, before the support member 5 is fixed to the web 11 of the segment 2,
The upper and lower cam holding members 18 are formed as a unit formed in a frame shape by fixing bolts 21. In this state, the pivot 12 is inserted into the shaft holes 25 of the frames 20 on both sides, and the welding portion 24 is welded to the pivot. 12 is the frame 20 on both sides
The pivot 12 can be provided with the same diameter over the entire length.
【００１９】つまり、上下のカム押さえ部材１８は、そ
の段部２６を両側フレーム２０の内側面に係止させるこ
とで、当該両側フレーム２０がそれ以上は互いに近接し
ないように位置規制を行なわせることができる。That is, the position of the upper and lower cam pressing members 18 is regulated by locking the step portions 26 to the inner side surfaces of the both side frames 20 so that the two side frames 20 do not come close to each other. Can be.
【００２０】仮りに、カム押さえ部材１８がない場合
は、枢軸１２が同一径であると両フレーム２０が所定距
離よりもさらに近づくのを阻止する位置規制手段が必要
となる。この場合は、通常枢軸１２の両端部に段部を設
けてその外端側を小径とし、当該段部に両側フレーム２
０を当接することになる。しかし、枢軸１２に段部を形
成すると枢軸１２の強度が著るしく低下し、締付カム６
が係止部材３を介して強大な引張り力を受けることによ
り、この締付カム６を介して枢軸１２が強大な力を受け
たとき、前記の段付部を介して破損するおそれがある。If the cam pressing member 18 is not provided, if the pivots 12 have the same diameter, a position regulating means for preventing the two frames 20 from coming closer than a predetermined distance is required. In this case, usually, a step is provided at both ends of the pivot 12 so that the outer end side has a small diameter, and the two-sided frame 2 is attached to the step.
0 will abut. However, if a step is formed on the pivot 12, the strength of the pivot 12 is significantly reduced, and the tightening cam 6
Receives a strong pulling force via the locking member 3, and when the pivot 12 receives a strong force via the tightening cam 6, the shaft 12 may be broken through the stepped portion.
【００２１】しかるに、本実施例では、前述のようにカ
ム押さえ部材１８の段部２６が両側フレーム２０の間隔
を一定に保持する位置規制板として作用しているが故
に、枢軸１２には段部を設けないで、全長にわたり同一
径に設けることが可能となった。したがって、段付枢軸
（図示せず）に比較して枢軸１２の強度が向上し、係止
部材３と締付カム６に数十トン（例えば４０〜５０ト
ン）の強大な引張力が作用しても、枢軸１２は破断する
ことがない。However, in this embodiment, since the step 26 of the cam pressing member 18 acts as a position regulating plate for keeping the distance between the two frames 20 constant as described above, the step of the , And can be provided with the same diameter over the entire length. Therefore, the strength of the pivot 12 is improved as compared with a stepped pivot (not shown), and a strong tensile force of several tens tons (for example, 40 to 50 tons) acts on the locking member 3 and the tightening cam 6. However, the pivot 12 does not break.
【００２２】さらに、枢軸１２に枢支された締付カム６
がカム押さえ部材１８と係合していることで、係合部材
３に引張力が作用したとき、当該枢軸１２の撓みが規制
されるという作用も奏される。Further, the tightening cam 6 pivotally supported by the pivot 12
Is engaged with the cam pressing member 18, so that when a tensile force is applied to the engaging member 3, the bending of the pivot 12 is regulated.
【００２３】連結すべき前記他方のセグメント２の鋼殻
８における各フランジ１３の外側には、嵌込凹部１４が
設けられ、前記一方のセグメント１の鋼殻８における各
フランジ１５の外側に、前記嵌込凹部１４に嵌合される
嵌込突条１６が設けられている。Outside the respective flanges 13 of the steel shell 8 of the other segment 2 to be connected, fitting recesses 14 are provided, and outside the respective flanges 15 of the steel shell 8 of the one segment 1, A fitting ridge 16 fitted into the fitting recess 14 is provided.
【００２４】各セグメント１，２を連結する場合は、図
１に示す状態から、一方のセグメント１または他方のセ
グメント２を対向するセグメントに向かってトンネル軸
方向に移動していく。このとき係止部材３が、ばね７の
力に抗して各締付カム６の間に進入し、図２に示すよう
に、各締付カム６が、ばね７により回動されて係止部材
３の膨出部４の係止斜面４ａに係合されると共に、各嵌
込突条１６が各嵌込凹部１４に嵌合される。When connecting the segments 1 and 2, one segment 1 or the other segment 2 is moved in the tunnel axial direction from the state shown in FIG. 1 toward the opposing segment. At this time, the locking member 3 enters between the respective tightening cams 6 against the force of the spring 7, and as shown in FIG. The engaging ridge 16 is fitted into each of the fitting concave portions 14 while being engaged with the locking slope 4 a of the bulging portion 4 of the member 3.
【００２５】前述のようにして、各セグメント１，２を
連結したのち、図３に示すように、各セグメント１，２
の鋼殻８の間に、モルタルなどの常温硬化性材料１７が
充填される。After connecting the segments 1 and 2 as described above, as shown in FIG.
The room temperature curable material 17 such as mortar is filled between the steel shells 8.
【００２６】[0026]
【発明の効果】本発明によれば、連結すべき一方のセグ
メント１の軸方向端面に、連結すべき他方のセグメント
２に向って突出し、先端に膨出部４を有する係止部材３
を固定し、前記他方のセグメント２に固定された支持部
材５に間隔をおいて配置された一対の締付カム６を枢着
し、各締付カム６にこれを締付位置に回動させるばね７
を係合させ、かつ前記締付カム６に設けた係合部６ａに
係止するカム押さえ部材１８を設け、前記係止部材３の
膨出部４一対の締付カム６の間に挿入してこれに係合さ
せ、前記カム押さえ部材１８を前記締付カム６の係合部
６ａに係合させたので、セグメント１，２を迅速にかく
強固に連結することができる。According to the present invention, the locking member 3 protrudes from the axial end face of one segment 1 to be connected toward the other segment 2 to be connected and has a bulge 4 at the tip.
And a pair of clamping cams 6 spaced apart from each other are pivotally attached to the support member 5 fixed to the other segment 2, and each of the clamping cams 6 is rotated to the clamping position. Spring 7
Is provided, and a cam pressing member 18 is provided for engaging with the engaging portion 6a provided on the tightening cam 6, and the bulging portion 4 of the locking member 3 is inserted between the pair of tightening cams 6. Since the cam pressing member 18 is engaged with the engaging portion 6a of the tightening cam 6, the segments 1 and 2 can be quickly and firmly connected.
【００２７】特に本発明では、締付カム６の係合部６ａ
にカム押さえ部材１８を係合しているので、これが締付
カム６の回動を制止するロック機構として働き、締付カ
ム６と係止部材３とを引離す方向に強大な（数十トン）
力が作用し、締付カム６に回転力が作用しても当該締付
カム６は回動せず、しかも、枢軸１２は全長にわたって
同一径であり、さらに締付カム６がカム押さえ部材１８
と係合していることで撓まず、これらの相乗効果でセグ
メント連結部に加わる強大な引離し力に耐えて、セグメ
ント間の連結を確実に保持できるというすぐれた効果が
ある。In particular, in the present invention, the engaging portion 6a of the tightening cam 6
Since the cam pressing member 18 is engaged with the locking member 6, this works as a lock mechanism for stopping the rotation of the tightening cam 6, and is strong in the direction in which the tightening cam 6 and the locking member 3 are separated (tens of tons). )
Even if a force is applied and a rotational force is applied to the tightening cam 6, the tightening cam 6 does not rotate, and the pivot 12 has the same diameter over the entire length.
With this arrangement, there is an excellent effect that the connection between the segments can be surely held by resisting the bending force applied to the segment connecting portion by the synergistic effect without bending.
【図１】本発明の実施例に係るセグメントの連結構造を
分離して示すトンネル軸方向断面図である。FIG. 1 is a sectional view in the axial direction of a tunnel, showing a connection structure of segments according to an embodiment of the present invention.
【図２】本発明の実施例に係るセグメントの連結構造を
示すトンネル軸方向断面図である。FIG. 2 is a sectional view in the axial direction of a tunnel showing a connection structure of segments according to an embodiment of the present invention.
【図３】隣り合うセグメントの間に常温硬化性材料を充
填した状態を示すトンネル軸方向断面図である。FIG. 3 is a sectional view in the tunnel axial direction showing a state where a room temperature curable material is filled between adjacent segments.
【図４】図２におけるセグメント連結構造の拡大部分図
である。FIG. 4 is an enlarged partial view of the segment connection structure in FIG. 2;
【図５】図４のＡ−Ａ線断面図である。FIG. 5 is a sectional view taken along line AA of FIG. 4;
【図６】連結すべき一方のセグメントを示す正面図であ
る。FIG. 6 is a front view showing one segment to be connected.
【図７】図６の中央部を拡大して示す正面図である。FIG. 7 is an enlarged front view showing a central portion of FIG. 6;
【図８】連結すべき他方のセグメントを示す正面図であ
る。FIG. 8 is a front view showing the other segment to be connected.
【図９】図８の中央部を拡大して示す正面図である。FIG. 9 is an enlarged front view showing a central portion of FIG. 8;
【図１０】覆工用セグメントリングの斜視図である。FIG. 10 is a perspective view of a lining segment ring.
【符号の説明】 １ セグメント ２ セグメント ３ 係止部材 ４ 膨出部 ４ａ 係止斜面 ５ 支持部材 ６ 締付カム ６ａ 係合部 ６ｂ 圧接面 ７ ばね ８ 鋼殻 ９ コンクリート １０ ウエブ １１ ウエブ １２ 枢軸 １３ フランジ １４ 嵌込凹部 １５ フランジ １６ 嵌込突条 １７ 常温硬化性材料 １８ カム押さえ部材 ２０ 両側フレーム ２１ 固定ボルト ２２ ボルト挿入孔 ２３ 雌ねじ ２４ 溶接部 ２５ 軸孔 ２６ 段部[Description of Signs] 1 segment 2 segment 3 locking member 4 bulging portion 4a locking slope 5 supporting member 6 tightening cam 6a engaging portion 6b press-contact surface 7 spring 8 steel shell 9 concrete 10 web 11 web 12 pivot 13 flange 14 Fitting recess 15 Flange 16 Fitting ridge 17 Room temperature hardening material 18 Cam holding member 20 Side frames 21 Fixing bolt 22 Bolt insertion hole 23 Female screw 24 Welding part 25 Shaft hole 26 Step
───────────────────────────────────────────────────── フロントページの続き (72)発明者 横山 努 東京都千代田区大手町二丁目６番３号 新日本製鐵株式会社内 (72)発明者 石村 勝宏 大阪府大阪市西区阿波座一丁目３番15号 鹿島建設株式会社 関西支店内 (72)発明者 田村 義昭 大阪府大阪市西区阿波座一丁目３番15号 鹿島建設株式会社 関西支店内 (72)発明者 佐野 陽一 東京都千代田区大手町二丁目６番３号 新日本製鐵株式会社内 (72)発明者 氷澤 幸彦 大阪府大阪市西区阿波座一丁目３番15号 鹿島建設株式会社 関西支店内 (56)参考文献 特開 平５−256096（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) E21D 11/08 F16L 9/22 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tsutomu Yokoyama 2-6-3 Otemachi, Chiyoda-ku, Tokyo Nippon Steel Corporation (72) Inventor Katsuhiro Ishimura 1-3-3 Awaza, Nishi-ku, Osaka-shi, Osaka 15 Kashima Construction Co., Ltd.Kansai Branch (72) Inventor Yoshiaki Tamura 1-3-15 Awaza, Nishi-ku, Osaka City, Osaka Prefecture Kashima Construction Co., Ltd.Kansai Branch (72) Inventor Yoichi Sano 2-chome Otemachi, Chiyoda-ku, Tokyo No. 6-3 Inside Nippon Steel Corporation (72) Inventor Yukihiko Hizawa 1-3-15 Awaza, Nishi-ku, Osaka-shi, Osaka Kashima Construction Co., Ltd. Kansai Branch (56) References JP-A-5-256096 ( JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) E21D 11/08 F16L 9/22
Claims (4)
端面に、連結すべき他方のセグメント２に向って突出
し、先端に膨出部４を有する係止部材３を固定し、前記
他方のセグメント２に固定された支持部材５に間隔をお
いて配置された一対の締付カム６を枢着し、各締付カム
６にこれを締付位置に回動させるばね７を係合させ、か
つ前記締付カム６に設けた係合部６ａに係止するカム押
さえ部材１８を設け、前記係止部材３の膨出部４を一対
の締付カム６の間に挿入してこれに係合させ、前記カム
押さえ部材１８を前記締付カム６の係合部６ａに係合さ
せたセグメントの連結構造。1. A locking member 3 protruding toward the other segment 2 to be connected and having a bulging portion 4 at the tip is fixed to the axial end face of one segment 1 to be connected, A pair of tightening cams 6 spaced apart from each other on a supporting member 5 fixed to the support member 2 and engaging a spring 7 for rotating each of the tightening cams 6 to a tightening position; A cam pressing member 18 is provided for locking the engaging portion 6a provided on the tightening cam 6, and the bulging portion 4 of the locking member 3 is inserted between the pair of tightening cams 6 and engaged therewith. A segment connecting structure in which the cam pressing member 18 is engaged with the engaging portion 6a of the tightening cam 6.
端面に、連結すべき他方のセグメント２に向って突出
し、先端に膨出部４を有する係止部材３を固定し、前記
他方のセグメント２に両側フレーム２０を固着し、かつ
両側フレーム２０と上下のカム押さえ部材１８とを枠状
に組み固定ボルト２１により結合して支持部材５を構成
し、前記両側フレーム２０に設けた一対の枢軸１２に締
付カム６を枢着し、各締付カム６にこれを締付位置に回
動させるばね７を係合させ、前記係止部材３の膨出部４
を前記締付カム６に挿入してこれに係合させ、前記カム
押さえ部材１８を前記締付カム６の係合部６ａに係合さ
せたセグメントの連結構造。2. A locking member 3 protruding toward the other segment 2 to be connected and having a bulging portion 4 at the tip is fixed to the axial end face of one segment 1 to be connected, 2 and the upper and lower cam pressing members 18 are assembled into a frame shape and connected by fixing bolts 21 to form the supporting member 5. 12, the tightening cams 6 are pivotally connected to each other, and each of the tightening cams 6 is engaged with a spring 7 for rotating the cam to a tightening position.
Is inserted into and engaged with the tightening cam 6, and the cam pressing member 18 is engaged with the engaging portion 6 a of the tightening cam 6.
の圧接面６ｂにローレット加工が施されている請求項２
に記載のセグメントの連結構造。3. A knurling process is applied to the pressing surface 6b of the tightening cam 6 with the locking member 3.
The connection structure of segments described in 1.
同一径に設けられている請求項２に記載のセグメントの
連結構造。4. The segment connecting structure according to claim 2, wherein said pair of pivots 12 are provided with the same diameter over the entire length thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21941195A JP3340890B2 (en) | 1995-08-07 | 1995-08-07 | Segment connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21941195A JP3340890B2 (en) | 1995-08-07 | 1995-08-07 | Segment connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0949588A JPH0949588A (en) | 1997-02-18 |
| JP3340890B2 true JP3340890B2 (en) | 2002-11-05 |
Family
ID=16734988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21941195A Expired - Fee Related JP3340890B2 (en) | 1995-08-07 | 1995-08-07 | Segment connection structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3340890B2 (en) |
-
1995
- 1995-08-07 JP JP21941195A patent/JP3340890B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0949588A (en) | 1997-02-18 |
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