JPH09242487A - Steel sheet segment connecting structure - Google Patents
Steel sheet segment connecting structureInfo
- Publication number
- JPH09242487A JPH09242487A JP8079387A JP7938796A JPH09242487A JP H09242487 A JPH09242487 A JP H09242487A JP 8079387 A JP8079387 A JP 8079387A JP 7938796 A JP7938796 A JP 7938796A JP H09242487 A JPH09242487 A JP H09242487A
- Authority
- JP
- Japan
- Prior art keywords
- steel shell
- shell segment
- segment
- tunnel
- engaging
- 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、トンネル覆工に用
いられる鋼殻周縁枠を有する鋼殻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 steel shell segment connecting structure having a steel shell peripheral frame used for tunnel lining.
【０００２】[0002]
【従来の技術】従来、シールドトンネルを掘進する際に
使用される覆工用鋼殻セグメントのとくにトンネル円周
方向（湾曲方向）の連結構造として、例えば、実公昭４
２−１６１８６号や、実公平３−４６０７３号等に開示
のものが知られている。2. Description of the Related Art Conventionally, as a connection structure of steel lining segments for lining used when excavating a shield tunnel, particularly in the circumferential direction (curving direction) of the tunnel, for example, Jikken Sho 4
Those disclosed in No. 2-16186, Jikken 3-46073, etc. are known.
【０００３】前記、鋼殻セグメントの連結構造では、い
ずれもトンネル軸方向からみて円弧形状をなす鋼殻セグ
メントのトンネル軸方向両側の側面板と、トンネル円周
方向の端面板にそれぞれボルト孔が複数開設されてい
て、トンネル軸方向及び、トンネル円周方向に連結すべ
き各鋼殻セグメントの前記各側面板と端面板同士を接合
したうえ、前記ボルト孔に接合用ボルトを挿入し、この
ボルトにナットを締結することで、前記トンネル軸方向
とトンネル円周方向に隣接する鋼殻セグメント同士を強
固に連結している。In the above-mentioned steel shell segment connecting structure, a plurality of bolt holes are formed on the side plates on both sides in the tunnel axial direction of the steel shell segment, which are arcuate when viewed from the tunnel axial direction, and the end plates in the tunnel circumferential direction. After connecting each side plate and end plate of each steel shell segment to be connected in the tunnel axial direction and the tunnel circumferential direction that has been opened, insert a connecting bolt into the bolt hole, By fastening the nut, the steel shell segments adjacent to each other in the tunnel axial direction and the tunnel circumferential direction are firmly connected to each other.
【０００４】ところで、各種の産業分野で推進されてい
る機械化，省力化の要望は、トンネル覆工の分野でも例
外ではなく、セグメントのトンネル内への搬入から掘削
内周壁への移動配置、各セグメント間の組立連結等の作
業に、搬入装置，エレクタ装置，押圧ジャッキ等を含む
自動機械を使用し、可及的に機械手段を用い、かつ小数
作業者での迅速安全な作業が望まれている。しかるに、
これらの機械化を阻害する原因の一つに、セグメント間
の連結作業を前記ボルト，ナットにより行うことがあっ
た。By the way, the demand for mechanization and labor saving promoted in various industrial fields is no exception in the field of tunnel lining, and the moving arrangement from the loading of the segment into the tunnel to the inner wall of the excavation, each segment. It is desired that an automatic machine including a carry-in device, an erector device, a pressing jack, etc. be used for work such as assembly and connection between the machines, and mechanical means be used as much as possible, and that a small number of workers work quickly and safely. . However,
One of the causes of hindering the mechanization is that the connecting work between the segments is performed by the bolts and nuts.
【０００５】セグメントによるトンネル覆工に際し、セ
グメントの連結作業の占める割合は無視できず、このた
め、自動化が不可能な前記ボルト，ナットによるセグメ
ント連結手段は余り普及せず、むしろ本願人に係る特開
平４−３３０１９７号の鋼殻セグメントが自動化に適し
たセグメントとして普及している。In the tunnel lining by the segment, the proportion of the segment connecting work cannot be ignored, and therefore the segment connecting means using the bolts and nuts, which cannot be automated, has not been widely spread, but rather the characteristic of the applicant. The steel shell segment of Kaihei 4-330197 is popular as a segment suitable for automation.
【０００６】また、セグメント間の連結部（特に、トン
ネル円周方向の連結部）に要求されることは、円周方
向にセグメントが離間しないことと、この連結部が止
水性を保つこと、セグメント連結作業が自動化できる
こと、であり、前記３点を相互に比較勘案して、いずれ
か１つが極端な犠牲を強いられない範囲で、前記セグメ
ント連結部の構造が選択され、これらの観点から、従来
種々のセグメント連結部の構造が提案されている。Further, what is required of the connecting portion between the segments (particularly, the connecting portion in the tunnel circumferential direction) is that the segments are not separated from each other in the circumferential direction, that this connecting portion keeps the water stop, Since the connecting work can be automated, the structure of the segment connecting portion is selected within a range in which any one of them cannot be extremely sacrificed in consideration of the above three points, and from these viewpoints, the conventional structure is used. Various segment connection structures have been proposed.
【０００７】前記特開平４−３３０１９７号では、セグ
メント組立の自動化と止水性の点で特徴を有したセグメ
ントの継手構造であり、このセグメントの円弧状の両端
面を略Ｈ形鋼で構成し、その外側フランジと内側フラン
ジとウエブとで構成される空隙に止水用モルタルを充填
することでセグメントの円周方向連結部の止水性を保
ち、かつ自動機械による自動組立を阻害しない構造とさ
れている。In Japanese Patent Laid-Open No. 4-330197, there is a segment joint structure characterized by the automation of segment assembly and the waterproofness. The arcuate end faces of this segment are made of substantially H-shaped steel, The gap between the outer flange, the inner flange and the web is filled with water-stopping mortar to maintain the water-stoppage of the circumferential joints of the segments and not interfere with automatic assembly by an automatic machine. There is.
【０００８】[0008]
【発明が解決しようとする課題】前記鋼殻セグメント構
造は、その組立てが自動化に適した構造ではあるが、連
結部の空隙に止水用のモルタルを充填する作業が必要で
あり、このため現場でセメントと砂を混練する設備と作
業，前記空隙にモルタルを充填する作業等に相当手間ど
り、しかも、モルタルに要するコストなどの点で問題で
ある。このようなことからモルタルを用いないセグメン
ト連結部構造で、しかも自動機械による自動化に適した
構造であるセグメント連結構造が強く求められている。Although the above-mentioned steel shell segment structure is a structure suitable for automation of assembly, it is necessary to fill the voids of the connecting portion with mortar for stopping water, and therefore, the site is required. Therefore, there is a problem in that equipment and work for kneading cement and sand, work for filling the mortar into the voids, and the like are considerably troublesome, and the cost required for the mortar is low. For this reason, there is a strong demand for a segment connecting structure that does not use mortar and that is a structure suitable for automation by an automatic machine.
【０００９】本発明者は前記の問題点を種々検討した結
果、セグメント連結部にモルタルを用いない構造で、し
かもセグメント連結部が止水性を有した構造とするこ
と、及び自動化に適した連結部構造とするためには、鋼
殻セグメントの円弧状両端面が面接触できる連結部構造
とすること及び、自動機械を用いてトンネル軸方向のセ
グメントの圧入操作のみでセグメント間の円周方向の連
結が可能であること、この２点の条件を満たすべきとの
結論に達した。本発明はこのような条件を満たすことの
できる鋼殻セグメントの連結構造を提供することを目的
とする。As a result of various studies on the above-mentioned problems, the inventor of the present invention has a structure in which the mortar is not used for the segment connecting portion, and the segment connecting portion has a water-stopping structure, and a connecting portion suitable for automation. In order to make the structure, the connecting part structure where the arcuate both end surfaces of the steel shell segment can make surface contact, and the connecting in the circumferential direction between the segments is performed only by the press-fitting operation of the segments in the tunnel axial direction using an automatic machine. It was concluded that these two conditions must be met. An object of the present invention is to provide a connecting structure of steel shell segments which can satisfy such conditions.
【００１０】[0010]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係る鋼殻セグメントの連結構造は、対をな
して平行に配設された円弧状形成の鋼殻側面板の両端に
端面板を固着して鋼殻セグメント本体を構成し、この鋼
殻セグメント本体の内側空間にコンクリートを充填した
鋼殻セグメントにおいて、前記鋼殻セグメントの両端で
その配置が逆になるようにして、かつそれぞれの軸線が
鋼殻セグメントの軸方向になるようにして前記鋼殻セグ
メントの四隅部に係合突起と係合孔を設け、前記係合突
起は、前記鋼殻側面板から外方に突出するようにこの鋼
殻側面板に溶接し、前記係合孔は、前記端面板の端面か
ら突出するようにして鋼殻側面板に溶接した連結板に開
設し、トンネル円周方向に接合すべき鋼殻セグメントの
端面板同士をトンネル軸一方向にずらして面接触させた
うえ、トンネル軸他方向に移動することで前記係合突起
が前記係合孔に嵌合する構成を特徴とする。また、本発
明の鋼殻セグメントの連結構造は、前記鋼殻セグメント
と組合わせ使用するキー鋼殻セグメントにおいて、前記
キー鋼殻セグメントのトンネル軸方向前面と後面でその
配置が同じになるようにして、かつそれぞれの軸線がキ
ー鋼殻セグメントの軸方向になるようにして前記キー鋼
殻セグメントの四隅部に係合突起と係合孔を設け、前記
係合突起は、前記鋼殻側面板から外方に突出するように
この鋼殻側面板に溶接し、前記係合孔は、前記端面板の
端面から突出するようにして鋼殻側面板に溶接した連結
板に開設し、このキー鋼殻セグメントをトンネル軸方向
に移動させることで、その前面側の係合突起と後面側の
係合孔がその両隣に位置する既設の鋼殻セグメントの係
合孔と係合突起に嵌合する構成を特徴とする。また、本
発明の鋼殻セグメントの連結構造は、対をなして平行に
配設された円弧状形成の鋼殻側面板の両端に端面板を固
着して鋼殻セグメント本体を構成し、この鋼殻セグメン
ト本体の内側空間にコンクリートを充填した鋼殻セグメ
ントにおいて、前記鋼殻セグメントの両端でその配置が
逆になるようにして、かつそれぞれの軸線が鋼殻セグメ
ントの軸方向になるようにして前記鋼殻セグメントの四
隅部に係合突起と係合孔を設け、前記係合突起は、前記
端面板の端面から突出するようにして鋼殻側面板に溶接
した連結板に設け、前記係合孔は前記鋼殻側面板に開設
し、トンネル円周方向に接合すべき鋼殻セグメントの端
面板同士をトンネル軸一方向にずらして面接触させたう
え、トンネル軸他方向に移動することで前記係合突起が
前記係合孔に嵌合する構成を特徴とする。また、本発明
の鋼殻セグメントの連結構造は、前記鋼殻セグメントと
組合わせ使用するキー鋼殻セグメントにおいて、前記キ
ー鋼殻セグメントのトンネル軸方向前面と後面でその配
置が同じになるようにして、かつそれぞれの軸線がキー
鋼殻セグメントの軸方向になるようにして前記キー鋼殻
セグメントの四隅部に係合突起と係合孔を設け、前記係
合突起は、前記端面板の端面から突出するようにして前
記鋼殻側面板に溶接した連結板に設け、前記係合孔は、
前記鋼殻側面板に開設し、このキー鋼殻セグメントをト
ンネル軸方向に移動させることで、その前面側の係合突
起と後面側の係合孔がその両隣に位置する既設の鋼殻セ
グメントの係合孔と係合突起に嵌合する構成を特徴とす
る。前記トンネル円周方向に隣合う鋼殻セグメントの端
面板間に発泡ウレタンを注入するとよい。In order to achieve the above-mentioned object, a connecting structure of steel shell segments according to the present invention has a structure in which both ends of steel shell side plates having a pair of arcs and arranged in parallel are formed. A steel shell segment body is formed by fixing end plates, and in the steel shell segment in which the inner space of the steel shell segment body is filled with concrete, the arrangement is reversed at both ends of the steel shell segment, and Engaging projections and engaging holes are provided at the four corners of the steel shell segment such that the respective axes are in the axial direction of the steel shell segment, and the engaging projections project outward from the steel shell side plate. Steel to be welded to the steel shell side plate so that the engagement hole is opened in the connecting plate welded to the steel shell side plate so as to project from the end surface of the end plate, and to be joined in the tunnel circumferential direction. The end plates of the shell segment are After having allowed to staggered surface contact in one direction the spool shaft, and wherein the configuration the engaging protrusion by moving the tunnel axis other direction are fitted into the engagement hole. Further, the connection structure of the steel shell segment of the present invention, in the key steel shell segment used in combination with the steel shell segment, the arrangement is the same in the tunnel axial front surface and rear surface of the key steel shell segment. , And the engaging projections and the engaging holes are provided at the four corners of the key steel shell segment such that their respective axes are in the axial direction of the key steel shell segment, and the engaging projections are provided outside the steel shell side plate. This steel shell side plate is welded to the side surface plate of the steel shell so as to project in one direction, and the engagement hole is formed in the connecting plate welded to the side plate of the steel shell so as to project from the end surface of the end plate, and this key steel shell segment is formed. By moving in the axial direction of the tunnel, the engagement protrusions on the front side and the engagement holes on the rear side are fitted to the engagement holes and the engagement protrusions of the existing steel shell segment located on both sides of the engagement protrusion. And Further, the connection structure of the steel shell segments of the present invention comprises a steel shell segment main body in which end plates are fixed to both ends of arcuately formed steel shell side plates arranged in parallel to form a steel shell segment body. In a steel shell segment in which the inner space of the shell segment body is filled with concrete, the arrangement is reversed at both ends of the steel shell segment, and the respective axes are in the axial direction of the steel shell segment, Engaging projections and engaging holes are provided at the four corners of the steel shell segment, and the engaging projections are provided on a connecting plate welded to the steel shell side plate so as to project from the end face of the end face plate, and the engaging hole Is formed on the side surface plate of the steel shell, and the end plates of the steel shell segments to be joined in the tunnel circumferential direction are displaced in one direction of the tunnel axis and brought into surface contact, and then moved in the other direction of the tunnel axis. The mating protrusion is the engagement It characterized a configuration to fit. Further, the connection structure of the steel shell segment of the present invention, in the key steel shell segment used in combination with the steel shell segment, the arrangement is the same in the tunnel axial front surface and rear surface of the key steel shell segment. , And the engaging projections and the engaging holes are provided at the four corners of the key steel shell segment such that the respective axes are in the axial direction of the key steel shell segment, and the engaging projections project from the end surface of the end face plate. Provided on the connecting plate welded to the steel shell side plate in this manner, the engagement hole,
By opening the steel shell side plate and moving this key steel shell segment in the tunnel axial direction, the engaging projections on the front surface side and the engaging holes on the rear surface side of the existing steel shell segment are located on both sides thereof. A feature is that the engaging hole and the engaging protrusion are fitted together. Urethane foam may be injected between the end plates of the steel shell segments adjacent to each other in the circumferential direction of the tunnel.
【００１１】本発明によると、鋼殻セグメントをトンネ
ル円周方向の所定の位置に移動配置させたうえ、トンネ
ル軸方向にジャッキで押圧して若干距離移動させるだけ
の簡単な操作で、係合突起を係合孔に嵌合させることが
でき、これにより機械的手段を用いて、かつ各鋼殻セグ
メントのトンネル円周方向端面部同士を面接触で連結さ
せることができる。According to the present invention, the engaging projection is operated by a simple operation of moving and arranging the steel shell segment at a predetermined position in the circumferential direction of the tunnel and pressing the same in the axial direction of the tunnel with a slight distance. Can be fitted into the engagement hole, whereby the tunnel circumferential end faces of the respective steel shell segments can be connected by surface contact using mechanical means.
【００１２】[0012]
【発明の実施の形態】以下、本発明を図を参照して説明
する。図１〜図１１及び、図１２には本発明に係る鋼殻
セグメントのトンネル円周方向の連結構造の２例が示さ
れている。また、図１３には前記鋼殻セグメントのトン
ネル軸方向の連結部構造が示されており、図１４には、
本発明に係る連結手段を使用したトンネル覆工例が斜視
図で示されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 to 11 and 12 show two examples of a connection structure in the tunnel circumferential direction of steel shell segments according to the present invention. Further, FIG. 13 shows a structure of a connecting portion in the tunnel axis direction of the steel shell segment, and FIG.
An example of a tunnel lining using the connecting means according to the present invention is shown in a perspective view.
【００１３】前記各図から分かるように、鋼殻セグメン
ト６の鋼殻本体３２は、トンネル軸方向に所定の間隔を
おいて平行に配設されたＨ形鋼からなる円弧状鋼殻側面
板５とこの鋼殻側面板５の円弧状端部に端面板２０を固
着して構成される。As can be seen from the above figures, the steel shell main body 32 of the steel shell segment 6 is an arcuate steel shell side plate 5 made of H-shaped steel and arranged in parallel at a predetermined interval in the tunnel axis direction. The end face plate 20 is fixed to the arcuate end of the steel shell side plate 5.
【００１４】円弧状の鋼殻側面板５は、ウエブ１３と、
ウエブ１３の両端に一体に設けられた内側フランジ２と
外側フランジ７とから構成され、さらに、平行に配設さ
れる左右の円弧状の鋼殻側面板５の外側フランジ７の凹
部１９に、鋼板からなるスキンプレート１７が溶接によ
り固着され、前記外側フランジ７、内側フランジ２およ
びウエブ１３からなる鋼殻本体３２と、その中に充填さ
れた鉄筋コンクリート（鉄筋は図示省略）１４とにより
鋼殻セグメント６が構成されている。The arc-shaped steel shell side plate 5 has a web 13 and
The inner flange 2 and the outer flange 7 are integrally provided at both ends of the web 13, and further, in the recesses 19 of the outer flange 7 of the left and right arcuate steel shell side plates 5 arranged in parallel, the steel plate is formed. A skin plate 17 made of steel is fixed by welding, and a steel shell main body 32 made of the outer flange 7, the inner flange 2 and the web 13 and a reinforced concrete (reinforcing bar not shown) 14 filled in the steel shell segment 6 are formed. Is configured.
【００１５】図１〜図３は、円弧状に湾曲する単体の鋼
殻セグメント６を横断面で示し、かつ一部省略して示す
図である。同図において、鋼殻セグメント６の円弧状の
平面からみて四角形の一方の対角線上の隅部において、
鋼殻セグメント６のウエブ１３の端部に、その孔軸が鋼
殻セグメント６の軸方向になるように形成された係合孔
２２を有する連結板２３が溶接２９で固着されており、
前記係合孔２２は鋼殻セグメント６の端面板２０より前
側に突出位置している。FIGS. 1 to 3 are views showing a single steel shell segment 6 curved in an arc shape in a cross-sectional view and partly omitted. In the figure, at one corner on one diagonal line of the quadrangle as viewed from the arc-shaped plane of the steel shell segment 6,
At the end of the web 13 of the steel shell segment 6, a connecting plate 23 having an engagement hole 22 formed so that its hole axis is in the axial direction of the steel shell segment 6 is fixed by welding 29.
The engagement hole 22 is located on the front side of the end plate 20 of the steel shell segment 6 so as to project therefrom.
【００１６】また、同図において、鋼殻セグメント６の
円弧状平面からみて四角形の他方の対角線の両端部にお
いて、鋼殻セグメント６のウエブ１３の端部側面に、そ
の軸線が鋼殻セグメント６の軸方向になるように係合突
起３０が溶接２９で固着されている。Further, in the figure, at both ends of the other diagonal line of the quadrangle viewed from the arcuate plane of the steel shell segment 6, the axis line of the steel shell segment 6 is located on the side surface of the end of the web 13 of the steel shell segment 6. The engagement projection 30 is fixed by welding 29 so as to be in the axial direction.
【００１７】前記鋼殻セグメント６を円周方向に連結す
るには、図２，図３，図４の順序で行なう。まず、図２
に示すように一対の鋼殻セグメント６を、各係合突起３
０の先端が連結板２３にぶつからないようにして、この
鋼殻セグメント６を互いにトンネル軸一方向にずらした
状態で、各端面板２０同士がトンネル円周方向に接近す
るように配置する。The connection of the steel shell segments 6 in the circumferential direction is carried out in the order shown in FIGS. First, FIG.
A pair of steel shell segments 6 as shown in FIG.
The end plates 0 are arranged so that the respective end face plates 20 approach each other in the tunnel circumferential direction in a state where the steel shell segments 6 are displaced from each other in one direction of the tunnel axis so as not to hit the connecting plate 23.
【００１８】次に、図３に示すように、端面板２０同士
が面接触するまで一対の鋼殻セグメント６をトンネル円
周方向に接近させる。このとき、係合突起３０と係合孔
２２の軸線が揃う。Next, as shown in FIG. 3, the pair of steel shell segments 6 are brought close to each other in the tunnel circumferential direction until the end plates 20 come into surface contact with each other. At this time, the axes of the engagement protrusion 30 and the engagement hole 22 are aligned.
【００１９】最後に、各端面板２０同士をスライドさせ
ながら、一対の鋼殻セグメント６をトンネル軸他方向に
移動させる。このとき、鋼殻セグメント６の両サイドに
おいて、それぞれ係合突起３０と係合孔２２が嵌り合う
ことによって、鋼殻セグメント６がトンネル円周方向に
連結され、端面板２０の面接触状態が保たれる。しかも
この連結部はモルタル等を充填しなくとも止水性は十分
確保される。Finally, the pair of steel shell segments 6 are moved in the other direction of the tunnel axis while sliding the respective end plates 20. At this time, the engagement projections 30 and the engagement holes 22 are fitted on both sides of the steel shell segment 6, so that the steel shell segments 6 are connected in the tunnel circumferential direction and the surface contact state of the end face plate 20 is maintained. Be drunk In addition, the water-stop property is sufficiently ensured even if this connecting portion is not filled with mortar or the like.
【００２０】なお、一層の止水性が必要な場合は、この
端面板２０同士の間の僅少間隙に発泡ウレタンを注入し
てもよい（但し、図示せず）。また、前記の場合、各鋼
殻セグメント６のトンネル円周方向の所定位置への移動
配置はエレクター（図示せず）で行なう。If a further waterproofness is required, urethane foam may be injected into the small gap between the end plates 20 (not shown). In the above case, the erector (not shown) is used to move and arrange each steel shell segment 6 to a predetermined position in the tunnel circumferential direction.
【００２１】また鋼殻セグメント６のトンネル軸方向の
移動は押圧ジャッキ（図示せず）で行なうもので、この
ように本発明では、すべて機械的手段により、かつ簡易
な動作で鋼殻セグメント６のトンネル円周方向の連結を
行なうことができる。Further, the movement of the steel shell segment 6 in the tunnel axial direction is carried out by a pressing jack (not shown). As described above, in the present invention, the steel shell segment 6 is moved all by mechanical means and by a simple operation. Connections in the circumferential direction of the tunnel can be performed.
【００２２】なお、図１１に示すように、セグメントリ
ング形成の際、最後に配置するキー鋼殻セグメント６ａ
だけは、他の既設の鋼殻セグメント６とは、その係合突
起３０と係合孔２２の配置が若干異なっている。As shown in FIG. 11, when forming the segment ring, the key steel shell segment 6a to be arranged at the end is formed.
However, the arrangement of the engaging projections 30 and the engaging holes 22 is slightly different from the other existing steel shell segments 6.
【００２３】つまり、前記キー鋼殻セグメント６ａで
は、そのトンネル軸方向前面と後面で配置が同じになる
ようにして、かつそれぞれの軸線がキー鋼殻セグメント
６ａの軸方向になるようにして、前記キー鋼殻セグメン
ト６ａの四隅部に係合突起３０と係合孔２２を設け、前
記係合突起３０は、前記キー鋼殻セグメント６ａの鋼殻
側面板５から突出するようにこの鋼殻側面板５に溶接し
てある。また、前記係合孔２２は、鋼殻側面板５に溶接
してあり、前記端面板２０の端面から突出する位置にあ
る連結板２３に開設してある。そして、このキー鋼殻側
面板６ａをトンネル軸方向に移動させることで、その前
面側の係合突起３０と後面側の係合孔２２が、その両隣
に位置する既設の鋼殻セグメント６の係合孔２２と係合
突起３０とに嵌合するものである。That is, in the key steel shell segment 6a, the arrangement is the same on the front surface and the rear surface in the axial direction of the tunnel, and the respective axes are in the axial direction of the key steel shell segment 6a. Engaging projections 30 and engaging holes 22 are provided at four corners of the key steel shell segment 6a, and the engaging projections 30 project from the steel shell side plate 5 of the key steel shell segment 6a. It is welded to No. 5. The engagement hole 22 is welded to the steel shell side plate 5 and is formed in the connecting plate 23 at a position projecting from the end face of the end face plate 20. Then, by moving the key steel shell side plate 6a in the tunnel axial direction, the engagement protrusion 30 on the front side and the engagement hole 22 on the rear side are engaged with the existing steel shell segment 6 located on both sides thereof. The fitting hole 22 and the engaging projection 30 are fitted together.
【００２４】図１２には、本発明の他の例が示されてお
り、これは係合突起３０と係合孔２２の配置が、あたか
も図１〜図１０に示したものと逆の配置関係に設けられ
ている点が先の例と相違している。FIG. 12 shows another example of the present invention in which the arrangement of the engaging projections 30 and the engaging holes 22 is opposite to that shown in FIGS. 1 to 10. Is different from the previous example.
【００２５】つまり、この例では、鋼殻セグメント６ｂ
の両端でその配置が逆になるようにして、かつそれぞれ
の軸線が鋼殻セグメント６ｂの軸方向になるようにし
て、前記鋼殻セグメント６ｂの四隅部に係合突起３０と
係合孔２２が設けられている。また、前記係合突起３０
は、前記端面板２０の端面から突出するようにして、鋼
殻側面板５に溶接した連結板２３に設け、前記係合孔２
２は前記鋼殻側面板５に開設してある。そして、トンネ
ル円周方向に接合すべき鋼殻セグメントの端面板同士を
トンネル軸一方向にずらして面接触させたうえ、トンネ
ル軸他方向に移動することで前記係合突起が前記係合孔
２２に嵌合するように構成されている。That is, in this example, the steel shell segment 6b
The arrangement is reversed at both ends of the steel shell segment 6b so that the respective axial lines are in the axial direction of the steel shell segment 6b, and the engaging projections 30 and the engaging holes 22 are provided at the four corners of the steel shell segment 6b. It is provided. In addition, the engagement protrusion 30
Is provided on the connecting plate 23 welded to the steel shell side plate 5 so as to project from the end face of the end face plate 20, and the engaging hole 2
2 is provided in the steel shell side plate 5. Then, the end plates of the steel shell segments to be joined in the tunnel circumferential direction are displaced in one direction of the tunnel axis and brought into surface contact, and then moved in the other direction of the tunnel axis, whereby the engagement projections are formed in the engagement holes 22. Is configured to fit.
【００２６】次に図１３に示すように、既設の鋼殻セグ
メント６からトンネル軸方向にみて前方に突出する鋼製
内側フランジ２には、突出部接合端面８と凹み部接合端
面９と、この突出部接合端面８と凹み部接合端面９の内
を接続する傾斜面３とが設けられ、さらに、傾斜面３の
基端部には略半円断面のパッキング嵌合溝４が設けら
れ、このパッキング嵌合溝４にリング状止水パッキング
２６が嵌着されている。Next, as shown in FIG. 13, the steel inner flange 2 protruding forward from the existing steel shell segment 6 as viewed in the tunnel axial direction is provided with a projecting joint end face 8 and a recess joint end face 9. An inclined surface 3 that connects the protruding joint end surface 8 and the recessed joint end surface 9 is provided, and a proximal end portion of the inclined surface 3 is provided with a packing fitting groove 4 having a substantially semicircular cross section. A ring-shaped waterproof packing 26 is fitted in the packing fitting groove 4.
【００２７】図１３の左側部分は、前記既設の鋼殻セグ
メント６に対し、トンネル軸方向に連接する新設の鋼殻
セグメント６を示すものであって、トンネル周囲方向に
延長する前後一対のＨ形鋼からなる円弧状枠材とトンネ
ル軸方向に延長する直線状枠材とが溶接により固着され
て、鋼殻本体３２が構成され、その鋼殻本体３２におけ
る各辺の外側フランジ２１の外面に凹部３１が設けら
れ、その凹部３１に、鋼板からなるスキンプレート１７
が溶接により固着され、前記外側フランジ２１，内側フ
ランジ２およびウエブ１３からなる鋼殻本体３２と、そ
の中に充填された鉄筋コンクリート（鉄筋の図示を省
略）１４とにより新設の鋼殻セグメント６が構成されて
いる。そして、、前記Ｈ形鋼における内側フランジ２に
は、対向する相手側の内側フランジ２の各部と対称配置
になるように突出部接合端面１５と凹み部接合端面１８
と、その突出部接合端面１５と凹み部接合端面１８の間
を接続する傾斜面１６とが設けられ、さらに、傾斜面１
６の基端部には、略半円断面のパッキング嵌合溝１０が
設けられ、このパッキング嵌合溝１０にリング状止水パ
ッキング２６が嵌着されている。The left side portion of FIG. 13 shows a new steel shell segment 6 connected to the existing steel shell segment 6 in the tunnel axial direction, and is a pair of front and rear H-shapes extending in the tunnel circumferential direction. An arc-shaped frame member made of steel and a linear frame member extending in the axial direction of the tunnel are fixed to each other by welding to form a steel shell main body 32, and a recess is formed in the outer surface of the outer flange 21 on each side of the steel shell main body 32. 31, a skin plate 17 made of a steel plate is provided in the recess 31.
Are fixed by welding, and a new steel shell segment 6 is composed of a steel shell main body 32 consisting of the outer flange 21, the inner flange 2 and the web 13 and a reinforced concrete (reinforcing bar not shown) 14 filled therein. Has been done. Then, on the inner flange 2 of the H-section steel, the protruding portion joint end surface 15 and the recessed portion joint end surface 18 are arranged so as to be symmetrically arranged with the respective portions of the opposing inner flange 2 on the opposite side.
And an inclined surface 16 connecting between the protruding portion joint end surface 15 and the recessed portion joint end surface 18, and further, the inclined surface 1
A packing fitting groove 10 having a substantially semicircular cross section is provided at the base end portion of 6, and a ring-shaped waterproof packing 26 is fitted in the packing fitting groove 10.
【００２８】前記の鋼殻セグメント６をトンネル軸方向
に接合するには、図１３に示すように各セグメントの接
合すべき内側フランジ２と外側フランジ２１をそれぞれ
の傾斜面３，１６，３７，３８をガイドとして近接させ
る。こうして各フランジの突出部接合端面８，１５，３
３，３４と凹み部接合端面９，１８，３５，３６とが当
接し、かつ各傾斜面３，１６，３７，３８が接したとき
図に示すように、各リング状止水パッキング２６，２７
は各突出部接合端面８，１５，３３，３４で押されて変
形し、よって、トンネル軸方向に対向する一対の内側フ
ランジ２同士の接合部間隙及び、外側フランジ２１同士
の接合部間隙が水密的に密閉され、両フランジ接合部の
止水性は完全となる。４３はウエブ１３間の空隙に充填
されたモルタルである。In order to join the steel shell segment 6 in the axial direction of the tunnel, as shown in FIG. 13, the inner flange 2 and the outer flange 21 to be joined of each segment are respectively inclined surfaces 3, 16, 37, 38. As a guide. In this way, the protruding end joint end faces 8, 15, 3 of each flange
3, 34 and the concave joint end surfaces 9, 18, 35, 36 are in contact with each other, and the inclined surfaces 3, 16, 37, 38 are in contact with each other, as shown in FIG.
Is deformed by being pushed by the respective projecting portion joint end faces 8, 15, 33, 34, and thus the joint gap between the pair of inner flanges 2 facing each other in the tunnel axial direction and the joint gap between the outer flanges 21 are watertight. Are completely sealed, and the waterproofness of both flange joints is perfect. Reference numeral 43 is a mortar filled in the voids between the webs 13.
【００２９】[0029]
【発明の効果】以上説明したように、本発明の鋼殻セグ
メントの連結構造によると、トンネル円周方向に隣合う
鋼殻セグメントの連結を、鋼殻セグメントの四隅部で、
かつトンネル軸方向の前後の側面に設けられる係合突起
と係合孔との嵌合で行なうものであるから、トンネル円
周方向に隣合う鋼殻セグメントの端面板には付加部材が
存在せずフラットにできる。したがって、端面板同士が
面接触した状態で鋼殻セグメントをトンネル円周方向に
連結できるから、従来のようにこの端面板同士の間に形
成される空隙に止水用のモルタルを充填しなくてよいの
で、前記空隙へのモルタル充填に伴なう混練設備や諸作
業を省略でき、トンネル覆工の施工で大きな比率を占め
る鋼殻セグメントの連結作業の能率を著るしく向上で
き、かつモルタルに要したコストも不要になり、施工費
を低減できる。さらに本発明は、構成が簡潔であるうえ
自動機械による鋼殻セグメントの組立にも適しているな
どの効果がある。As described above, according to the connecting structure of the steel shell segments of the present invention, the connecting of the steel shell segments adjacent to each other in the tunnel circumferential direction is performed at the four corners of the steel shell segment.
In addition, since the engaging projections and the engaging holes provided on the front and rear side surfaces in the tunnel axial direction are engaged with each other, there is no additional member on the end face plates of the steel shell segments adjacent to each other in the tunnel circumferential direction. Can be flat. Therefore, since the steel shell segments can be connected in the tunnel circumferential direction in a state where the end plates are in surface contact with each other, it is not necessary to fill the gap formed between the end plates with the mortar for water stop as in the conventional case. Since it is good, it is possible to omit the kneading equipment and various works involved in filling the mortar into the voids, and it is possible to significantly improve the efficiency of the connecting work of the steel shell segments that make up a large proportion in the construction of the tunnel lining, and to make mortar The cost required is no longer necessary and the construction cost can be reduced. Furthermore, the present invention has advantages in that it has a simple structure and is suitable for assembling a steel shell segment by an automatic machine.
【図１】本発明に係る鋼殻セグメントの円弧状凸部を上
にして見た一部省略横断平面図である。FIG. 1 is a partially omitted cross-sectional plan view of a steel shell segment according to the present invention, viewed with an arcuate convex portion facing upward.
【図２】図１の鋼殻セグメントの一対をトンネル円周方
向に接近させた場合の端部の状態を示す横断平面図であ
る。FIG. 2 is a cross-sectional plan view showing a state of an end portion when a pair of steel shell segments of FIG. 1 are brought close to each other in a tunnel circumferential direction.
【図３】図２の鋼殻セグメントのトンネル円周方向端面
同士を接触した状態を示す横断平面図である。3 is a cross-sectional plan view showing a state where the end faces of the steel shell segment in the tunnel circumferential direction of FIG. 2 are in contact with each other.
【図４】図３の鋼殻セグメントをトンネル軸方向に移動
し、係合突起を係合孔に嵌合した状態を示す横断平面図
である。FIG. 4 is a cross-sectional plan view showing a state in which the steel shell segment of FIG. 3 is moved in the tunnel axis direction and the engaging protrusion is fitted in the engaging hole.
【図５】本発明に係る鋼殻セグメントのトンネル軸方向
の正面図である。FIG. 5 is a front view in the tunnel axis direction of the steel shell segment according to the present invention.
【図６】本発明の鋼殻セグメントをトンネル円周方向に
接合する直前の状態を示す一部省略正面図である。FIG. 6 is a partially omitted front view showing a state immediately before joining the steel shell segment of the present invention in the circumferential direction of the tunnel.
【図７】図６の鋼殻セグメントをトンネル円周方向に接
合した状態を示す一部省略正面図である。FIG. 7 is a partially omitted front view showing a state in which the steel shell segments of FIG. 6 are joined in the tunnel circumferential direction.
【図８】トンネル軸方向に接合すべき雌側の鋼殻セグメ
ントの一部断面で示す一側端面図である。FIG. 8 is a one-side end view showing a partial cross section of a female steel shell segment to be joined in the tunnel axial direction.
【図９】トンネル軸方向に接合すべき雄側の鋼殻セグメ
ントの一部断面で示す一側端面図である。FIG. 9 is a one-side end view showing a partial cross section of a male-side steel shell segment to be joined in the tunnel axial direction.
【図１０】鋼殻セグメントのトンネル円周方向の接合状
態を示す断面図である。FIG. 10 is a cross-sectional view showing a joined state of steel shell segments in a tunnel circumferential direction.
【図１１】キー鋼殻セグメントとトンネル円周方向両隣
の既設鋼殻セグメントとの接合状態を示す断面図であ
る。FIG. 11 is a cross-sectional view showing a joined state of the key steel shell segment and the existing steel shell segments on both sides in the circumferential direction of the tunnel.
【図１２】本発明の他の実施の形態に係る鋼殻セグメン
トのトンネル円周方向端面同士を接触した状態を示す横
断平面図である。FIG. 12 is a cross-sectional plan view showing a state in which the tunnel circumferential direction end faces of the steel shell segment according to another embodiment of the present invention are in contact with each other.
【図１３】本発明のセグメントにおけるトンネル軸方向
に隣り合うセグメントリング間の止水接合部を示す断面
図である。FIG. 13 is a cross-sectional view showing a waterproof joint between segment rings adjacent to each other in the tunnel axis direction in the segment of the present invention.
【図１４】本発明に係るセグメント覆工の斜視図であ
る。FIG. 14 is a perspective view of a segment lining according to the present invention.
２ 内側フランジ ３ 傾斜面 ４ パッキング嵌合溝 ５ 鋼殻側面板 ６ 鋼殻セグメント ６ａ キー鋼殻セグメント ６ｂ 鋼殻セグメント ７ 外側フランジ ８ 突出部接合端面 ９ 凹み部接合端面 １０ パッキング嵌合溝 １３ ウエブ １４ 鉄筋コンクリート １５ 突出部接合端面 １６ 傾斜面 １７ スキンプレート １８ 凹み部接合端面 １９ 凹部 ２０ 端面板 ２１ 外側フランジ ２２ 係合孔 ２３ 連結板 ２６ リング状止水パッキング ２７ リング状止水パッキング ２９ 溶接 ３０ 係合突起 ３１ 凹部 ３２ 鋼殻本体 ３３ 突出部接合端面 ３４ 突出部接合端面 ３７ 傾斜面 ３８ 傾斜面 2 Inner flange 3 Inclined surface 4 Packing fitting groove 5 Steel shell side plate 6 Steel shell segment 6a Key steel shell segment 6b Steel shell segment 7 Outer flange 8 Protruding joint end surface 9 Recessed joint end surface 10 Packing fitting groove 13 Web 14 Reinforced concrete 15 Projection joint end face 16 Inclined surface 17 Skin plate 18 Recessed joint end face 19 Recess 20 End face plate 21 Outer flange 22 Engagement hole 23 Connecting plate 26 Ring-shaped water stop packing 27 Ring-shaped water stop packing 29 Weld 30 Engagement protrusion 31 recessed part 32 steel shell main body 33 projecting part joining end face 34 projecting part joining end face 37 slanted face 38 slanted face
Claims (5)
の鋼殻側面板の両端に端面板を固着して鋼殻セグメント
本体を構成し、この鋼殻セグメント本体の内側空間にコ
ンクリートを充填した鋼殻セグメントにおいて、前記鋼
殻セグメントの両端でその配置が逆になるようにして、
かつそれぞれの軸線が鋼殻セグメントの軸方向になるよ
うにして前記鋼殻セグメントの四隅部に係合突起と係合
孔を設け、前記係合突起は、前記鋼殻側面板から外方に
突出するようにこの鋼殻側面板に溶接し、前記係合孔
は、前記端面板の端面から突出するようにして鋼殻側面
板に溶接した連結板に開設し、トンネル円周方向に接合
すべき鋼殻セグメントの端面板同士をトンネル軸一方向
にずらして面接触させたうえ、トンネル軸他方向に移動
することで前記係合突起が前記係合孔に嵌合する構成を
特徴とする鋼殻セグメントの連結構造。1. A steel shell segment body is formed by fixing end plates to both ends of arcuately formed steel shell side plates arranged in parallel in pairs, and concrete is provided in the space inside the steel shell segment body. In the steel shell segment filled with, the arrangement is reversed at both ends of the steel shell segment,
Further, engaging projections and engaging holes are provided at the four corners of the steel shell segment such that their respective axes are in the axial direction of the steel shell segment, and the engaging projections project outward from the steel shell side plate. To be welded to the steel shell side plate, the engagement hole should be formed in the connecting plate welded to the steel shell side plate so as to project from the end face of the end plate, and should be joined in the tunnel circumferential direction. A steel shell characterized in that the end plates of the steel shell segment are displaced in one direction of the tunnel axis and brought into surface contact with each other, and then moved in the other direction of the tunnel axis so that the engaging projection fits into the engaging hole. Connection structure of segments.
せ使用するキー鋼殻セグメントにおいて、前記キー鋼殻
セグメントのトンネル軸方向前面と後面でその配置が同
じになるようにして、かつそれぞれの軸線がキー鋼殻セ
グメントの軸方向になるようにして前記キー鋼殻セグメ
ントの四隅部に係合突起と係合孔を設け、前記係合突起
は、前記鋼殻側面板から外方に突出するようにこの鋼殻
側面板に溶接し、前記係合孔は、前記端面板の端面から
突出するようにして鋼殻側面板に溶接した連結板に開設
し、このキー鋼殻セグメントをトンネル軸方向に移動さ
せることで、その前面側の係合突起と後面側の係合孔が
その両隣に位置する既設の鋼殻セグメントの係合孔と係
合突起に嵌合する構成を特徴とする鋼殻セグメントの連
結構造。2. A key steel shell segment used in combination with the steel shell segment according to claim 1, wherein the front and rear surfaces of the key steel shell segment in the tunnel axial direction have the same arrangement, and Engaging projections and engaging holes are provided at the four corners of the key steel shell segment such that the axis is in the axial direction of the key steel shell segment, and the engaging projections project outward from the steel shell side plate. Welded to this steel shell side plate, the engagement hole is opened in the connecting plate welded to the steel shell side plate so as to project from the end face of the end plate, and this key steel shell segment is formed in the tunnel axial direction. Steel shell characterized in that the engaging projections on the front surface side and the engaging holes on the rear surface side are fitted into the engaging holes and the engaging projections of the existing steel shell segments located on both sides thereof by moving Connection structure of segments.
の鋼殻側面板の両端に端面板を固着して鋼殻セグメント
本体を構成し、この鋼殻セグメント本体の内側空間にコ
ンクリートを充填した鋼殻セグメントにおいて、前記鋼
殻セグメントの両端でその配置が逆になるようにして、
かつそれぞれの軸線が鋼殻セグメントの軸方向になるよ
うにして前記鋼殻セグメントの四隅部に係合突起と係合
孔を設け、前記係合突起は、前記端面板の端面から突出
するようにして鋼殻側面板に溶接した連結板に設け、前
記係合孔は前記鋼殻側面板に開設し、トンネル円周方向
に接合すべき鋼殻セグメントの端面板同士をトンネル軸
一方向にずらして面接触させたうえ、トンネル軸他方向
に移動することで前記係合突起が前記係合孔に嵌合する
構成を特徴とする鋼殻セグメントの連結構造。3. A steel shell segment main body is formed by fixing end plates to both ends of arcuate steel shell side plates which are arranged in parallel and form a pair, and concrete is provided in an inner space of the steel shell segment main body. In the steel shell segment filled with, the arrangement is reversed at both ends of the steel shell segment,
And the engaging projections and the engaging holes are provided at the four corners of the steel shell segment so that their respective axes are in the axial direction of the steel shell segment, and the engaging projections are projected from the end face of the end face plate. Provided in the connecting plate welded to the steel shell side plate, the engaging hole is opened in the steel shell side plate, and the end plates of the steel shell segments to be joined in the tunnel circumferential direction are shifted in one direction of the tunnel axis. A structure for connecting steel shell segments, characterized in that the engaging projections are fitted into the engaging holes by making surface contact and moving in the other direction of the tunnel axis.
せ使用するキー鋼殻セグメントにおいて、前記キー鋼殻
セグメントのトンネル軸方向前面と後面でその配置が同
じになるようにして、かつそれぞれの軸線がキー鋼殻セ
グメントの軸方向になるようにして前記キー鋼殻セグメ
ントの四隅部に係合突起と係合孔を設け、前記係合突起
は、前記端面板の端面から突出するようにして前記鋼殻
側面板に溶接した連結板に設け、前記係合孔は、前記鋼
殻側面板に開設し、このキー鋼殻セグメントをトンネル
軸方向に移動させることで、その前面側の係合突起と後
面側の係合孔がその両隣に位置する既設の鋼殻セグメン
トの係合孔と係合突起に嵌合する構成を特徴とする鋼殻
セグメントの連結構造。4. A key steel shell segment used in combination with the steel shell segment according to claim 3, wherein the front and rear surfaces of the key steel shell segment in the axial direction of the tunnel have the same arrangement, and Engaging projections and engaging holes are provided at the four corners of the key steel shell segment so that the axis is in the axial direction of the key steel shell segment, and the engaging projections project from the end surface of the end plate. Provided on the connecting plate welded to the steel shell side plate, the engaging hole is opened in the steel shell side plate, and by moving this key steel shell segment in the tunnel axial direction, the engaging protrusion on the front side thereof. And a structure in which the engagement holes on the rear side are fitted to the engagement holes and the engagement projections of the existing steel shell segments located on both sides thereof, respectively.
メントの端面板間に発泡ウレタンを注入することを特徴
とする請求項１ないし４のいずれかに記載の鋼殻セグメ
ントの連結構造。5. The connection structure of steel shell segments according to claim 1, wherein urethane foam is injected between the end face plates of the steel shell segments adjacent to each other in the tunnel circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07938796A JP3373110B2 (en) | 1996-03-08 | 1996-03-08 | Steel shell segment connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07938796A JP3373110B2 (en) | 1996-03-08 | 1996-03-08 | Steel shell segment connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09242487A true JPH09242487A (en) | 1997-09-16 |
| JP3373110B2 JP3373110B2 (en) | 2003-02-04 |
Family
ID=13688464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07938796A Expired - Fee Related JP3373110B2 (en) | 1996-03-08 | 1996-03-08 | Steel shell segment connection structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3373110B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235966A (en) * | 2020-01-20 | 2020-06-05 | 王军 | Vacuum pipeline and installation assembly for high-speed train |
| CN111997648A (en) * | 2020-08-28 | 2020-11-27 | 周希圣 | Reinforced concrete segment with steel skirt on inner arc surface and waterproof method |
-
1996
- 1996-03-08 JP JP07938796A patent/JP3373110B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111235966A (en) * | 2020-01-20 | 2020-06-05 | 王军 | Vacuum pipeline and installation assembly for high-speed train |
| CN111997648A (en) * | 2020-08-28 | 2020-11-27 | 周希圣 | Reinforced concrete segment with steel skirt on inner arc surface and waterproof method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3373110B2 (en) | 2003-02-04 |
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