JP2002220991A - Partition wall installed in main-tunnel shield tunnel and construction method therefor - Google Patents
Partition wall installed in main-tunnel shield tunnel and construction method thereforInfo
- Publication number
- JP2002220991A JP2002220991A JP2001016610A JP2001016610A JP2002220991A JP 2002220991 A JP2002220991 A JP 2002220991A JP 2001016610 A JP2001016610 A JP 2001016610A JP 2001016610 A JP2001016610 A JP 2001016610A JP 2002220991 A JP2002220991 A JP 2002220991A
- Authority
- JP
- Japan
- Prior art keywords
- tunnel
- shield tunnel
- partition wall
- segment
- steel
- 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.)
- Pending
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Description
【０００１】[0001]
【発明が属する技術分野】地下河川などにおけるシ−ル
ドトンネル工事では、全体計画の規模が大きいことから
工事計画を分割し随時発注されることがあり、その場合
供用を開始する区間と延伸工事を行う区間が生じること
になる。BACKGROUND OF THE INVENTION In the construction of shield tunnels in underground rivers, etc., due to the large scale of the overall plan, the construction plan may be divided and ordered at any time. A section to be performed occurs.
【０００２】そこで、供用区間と延伸区間における工事
において仕切を行う必要があり、その工事に対応する方
法でシ−ルドトンネル内に隔壁を構築する必要が生じる
ことになる。Therefore, it is necessary to perform partitioning in the construction in the service section and the extension section, and it becomes necessary to construct a partition wall in the shield tunnel by a method corresponding to the construction.
【０００３】本願発明は、図１で示すように、シ−ルド
工法によって築造し、既設の地下河川同士を接続する本
坑シ−ルドトンネル内に設置される隔壁構造とその構築
方法に関するものである。The present invention, as shown in FIG. 1, relates to a partition structure which is constructed by a shield method and is installed in a main shaft shield tunnel connecting existing underground rivers, and a method of constructing the same. is there.
【０００４】[0004]
【従来の技術】シ−ルドトンネルにおいて、既設シ−ル
ドトンネルの側面部に新たにシ−ルドトンネルを接続す
ることがあるが、既設されたシ−ルドトンネルから新た
にシ−ルドトンネルを分岐させる方法として、既設シ−
ルドトンネルａに向けてシ−ルド掘削機ｂを掘進させて
新しいシ−ルドトンネルｃを建設し、シ−ルド掘削機ｂ
が既設シ−ルドトンネルａに到達するとシ−ルド掘削機
ｂを一部解体した後シ−ルド掘削機ｂ側より放射状にボ
−リングし、該ボ−リングにより穿設されたボ−リング
孔ｄにシ−ルド掘削機ｂ側より凍結管ｅを挿入し、該凍
結管ｅへ冷媒を流すことによりその周囲の地盤を凍結し
て地盤を改良し、既設シ−ルドトンネルａの周壁を構成
する鉄筋コンクリ−トセグメントの接合箇所となる部分
を除去し、場所打ちコンクリ−ト等によって既設シ−ル
ドトンネルと新設シ−ルドトンネルを接合していた（図
７参照）。2. Description of the Related Art In a shield tunnel, a new shield tunnel is sometimes connected to a side surface of an existing shield tunnel. However, a new shield tunnel is branched from the existing shield tunnel. The existing sea
The shield excavator b is dug toward the shield tunnel a to construct a new shield tunnel c.
Arrives at the existing shield tunnel a, the shield excavator b is partially dismantled and then radially drilled from the shield excavator b side, and a boring hole formed by the boring. A freezing pipe e is inserted into d from the side of the shield excavator b, and the surrounding ground is frozen by flowing a coolant through the freezing pipe e to improve the ground, thereby forming the peripheral wall of the existing shield tunnel a. The existing shield tunnel and the new shield tunnel were joined by a cast-in-place concrete or the like (see FIG. 7).
【０００５】また、他の従来技術として、新設のシ−ル
ドトンネルｃが接合される既設シ−ルドトンネルａ内に
支保材ｆを組み立て、既設シ−ルドトンネルａ内を二分
割するパネルｇを軸方向に設けて支保材ｆで支持し、該
パネルｇと既設シ−ルドトンネルａで囲まれた空間部
を、該パネルｇの両端部に取り付けたパネルで閉塞し、
該空間部へ後に撤去可能な材料ｈを充填して硬化し、内
側に補強材ｉが設けられたセグメントｊおよび充填材料
ｈを、シ−ルド掘削機ｂにより切断してシ−ルド掘削機
ｂの先端部を既設シ−ルドトンネルａ内へ挿入し、次い
で支保材ｆとパネルｇ、及び充填材料ｉを撤去して既設
シ−ルドトンネルａと新設シ−ルドトンネルｃを接合し
ていた（図８参照）。As another prior art, a support member f is assembled in an existing shield tunnel a to which a new shield tunnel c is joined, and a panel g for dividing the inside of the existing shield tunnel a into two is provided. The space provided between the panel g and the existing shield tunnel a is closed by panels attached to both ends of the panel g, which are provided in the axial direction and supported by the support material f.
The space j is filled with a material h that can be removed later and hardened, and the segment j and the filling material h provided with the reinforcing material i inside are cut by a shield excavator b to perform a shield excavator b Was inserted into the existing shield tunnel a, and then the support material f and the panel g, and the filling material i were removed to join the existing shield tunnel a with the new shield tunnel c. See FIG. 8).
【０００６】しかし、従来の工法は、本坑セグメント外
周部の開口まわりの止水性、及び接続シ−ルド機内から
の凍結管先端部での凍土造成管理が重要となり、又本坑
セグメント解体時及び凍結膨張圧作用時の本坑セグメン
トの影響について充分に考慮する必要があった。更に、
シ−ルド掘削機からの凍結となるため、施工性・工期な
ど充分な検討が必要で、完成時の接合部止水性を確保す
るため止水鋼板等の設置が必要となっていた。また、既
設トンネル内の撤去可能な材料は支保材とパネルにより
囲まれた空間に充填されており、充填材をシ−ルド掘削
機により掘削する際の圧力に充分耐える構造にするた
め、既設トンネル内に設置する支保材およびパネルは、
既設トンネルに設けられる開口部の３倍近い長さが必要
であった。However, in the conventional construction method, it is important to control the water stoppage around the opening of the outer periphery of the main shaft segment and to control the formation of frozen soil at the tip of the freezing pipe from inside the connection shield machine. It was necessary to fully consider the effect of the main shaft segment on the action of freezing expansion pressure. Furthermore,
Due to the freezing from the shield excavator, sufficient study of the workability and construction period was required, and it was necessary to install a water-stopping steel plate or the like in order to secure the waterproofness of the joint at the time of completion. Also, the removable material in the existing tunnel is filled in the space surrounded by the supporting material and the panel, and in order to make the structure that can sufficiently withstand the pressure when the filler is excavated by the shield excavator, the existing tunnel is used. The support materials and panels installed in the
The length required was almost three times as long as the opening provided in the existing tunnel.
【０００７】[0007]
【発明が解決しようとする課題】本願発明は、延伸区間
に構築する隔壁は内水圧に耐え得る強度を備えた構造と
し、供用区間に構築する隔壁はトンネルに対して余分な
変形や応力を増加させないでトンネル内の水密性を図る
ことを課題とするものである。According to the invention of the present application, the partition wall constructed in the extending section has a structure capable of withstanding the internal water pressure, and the partition wall constructed in the service section increases extra deformation and stress with respect to the tunnel. It is an object of the present invention to achieve watertightness in a tunnel without causing the tunnel to leak.
【０００８】[0008]
【課題を解決するための手段】本願発明は上記課題を解
決するため、本坑シ−ルドトンネル内に隔壁を設置する
箇所のセグメントを、鉄筋コンクリ−トセグメント（以
下「ＲＣ」セグメントという）に代えて鋼製セグメント
を使用し、該鋼製セグメントの外側板に型枠兼用となる
鉄板を、所定の間隔で溶接し、両鉄板に予め穿設した孔
へ横架材を介してセパレ−タ−替わりとなるタイロッド
を貫通させ、本坑シ−ルドトンネル内を２枚の鉄板で閉
塞された空間部へ、貧配合からなるコンクリ−ト等を充
填することにより隔壁を形成したものである。According to the present invention, in order to solve the above-mentioned problems, a segment in which a partition is installed in a main tunnel shield tunnel is a reinforced concrete segment (hereinafter referred to as an "RC" segment). Instead, a steel segment is used, and an iron plate also serving as a mold is welded to the outer plate of the steel segment at a predetermined interval, and a separator is inserted through a horizontal member into a hole previously formed in both iron plates. -A partition wall is formed by penetrating an alternative tie rod and filling a space portion of the main tunnel tunnel closed with two iron plates with a poorly mixed concrete or the like.
【０００９】課題を解決するための具体的手段の１は、
本坑シ−ルドトンネルに、鋼製セグメント、鋼製セグメ
ントに取り付ける鉄板、両鉄板を貫通するタイロッド、
鋼製セグメントと鉄板で形成される空間部に充填する貧
配合コンクリ−トから成る隔壁を設けたことを特徴とす
る本坑シ−ルドトンネルにおける隔壁構造、課題を解決
するための具体的手段の２は、鋼製セグメントに継手板
を設けたことを特徴とする本坑シ−ルドトンネルにおけ
る隔壁構造、課題を解決するための具体的手段の３は、
本坑シ−ルドトンネルに隔壁を設ける箇所のセグメント
を鋼製セグメントとし、該鋼製セグメントに鉄板を取り
付けてトンネル内部に鉄板で閉塞された空間部を形成
し、鉄板の外側に横架材を取り付け、両鉄板にタイロッ
ドを挿通した後締め付け、該空間部へ貧配合コンクリ−
トを充填して成る隔壁の構築方法、課題を解決するため
の具体的手段の４は、鋼製セグメントに継手板を設けた
ことを特徴とする隔壁の構築方法、課題を解決するため
の具体的手段の５は、側面部に新たにシ−ルドトンネル
を接続する箇所の本坑シ−ルドトンネルのセグメントを
鋼製セグメントとし、該鋼製セグメントに２枚の鉄板を
取り付けてトンネル内部に閉塞された空間部を形成し、
鉄板の外側に横架材を取り付け、両鉄板にタイロッドを
挿通した後締め付けて空間部へ貧配合コンクリ−トを充
填し、該コンクリ−トが硬化した後掘削シ−ルド機で鋼
製セグメントおよび該コンクリ−トを切削して側面部に
シ−ルドトンネルを接続した後本坑シ−ルドトンネル内
の隔壁を撤去して成る本坑シ−ルドトンネルと接続・分
岐シ−ルドトンネルの構築方法、課題を解決するための
具体的手段の６は、鋼製セグメントに継手板を設けたこ
とを特徴とする本坑シ−ルドトンネルと、接続・分岐シ
−ルドトンネルの構築方法、とするものである。One of the concrete means for solving the problem is as follows.
In the shaft tunnel, a steel segment, an iron plate attached to the steel segment, a tie rod penetrating both iron plates,
A partition wall structure in a main shaft shield tunnel, characterized by providing a partition wall made of a poorly mixed concrete filling a space formed by a steel segment and an iron plate, and a concrete means for solving the problems. 2 is a partition wall structure in a main tunnel shield tunnel in which a joint plate is provided on a steel segment, and 3 of specific means for solving the problem is:
The segment where the partition wall is provided in the main shaft shield tunnel is a steel segment, an iron plate is attached to the steel segment to form a space closed by an iron plate inside the tunnel, and a horizontal member is provided outside the iron plate. Attach, tighten after inserting tie rods through both iron plates, poorly mixed concrete into the space
The method of constructing a partition wall by filling the joints and the specific means for solving the problem are: 4) a method of constructing a partition wall characterized in that a joint plate is provided on a steel segment; The means 5 is that a steel tunnel is used as a segment of the main shaft shield tunnel at a location where a new shield tunnel is connected to the side surface, and two steel plates are attached to the steel segment to close the inside of the tunnel. To form a space,
A horizontal member is attached to the outside of the iron plate, tie rods are inserted through both iron plates, and then tightened to fill the space with poorly-mixed concrete. After the concrete has hardened, the steel segments and A method for constructing a main tunnel shield tunnel and a connection / branch shield tunnel by cutting the concrete and connecting a shield tunnel to a side surface portion and removing a partition wall in the main tunnel shield tunnel. Six of the concrete means for solving the problems are a main tunnel shield tunnel in which a joint plate is provided on a steel segment, and a method of constructing a connection / branch shield tunnel. It is.
【００１０】[0010]
【発明の実施の形態】以下本願発明を図面に示した実施
例に基いて説明する。図２は、供用区間における本坑シ
−ルドトンネル１の側面部に新たにシ−ルドトンネル２
が接続される箇所に設ける隔壁を示す斜視図で、図３
は、延伸区間に設ける隔壁３を示す斜視図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to an embodiment shown in the drawings. FIG. 2 shows a new shield tunnel 2 on the side of the main tunnel shield tunnel 1 in the service section.
FIG. 3 is a perspective view showing a partition provided at a location where
Is a perspective view showing a partition wall 3 provided in a stretching section.
【００１１】図４は、供用区間における本坑シ−ルドト
ンネル１の側面部に新たにシ−ルドトンネル２が接続さ
れる箇所の詳細図を示し、図４ａは本坑シ−ルドトンネ
ル１内に隔壁３を設けた正面図で、図４ｂは、図４ａに
おけるＡ−Ａ断面図を示すものである。FIG. 4 is a detailed view of a portion where the shield tunnel 2 is newly connected to the side surface of the main tunnel shield tunnel 1 in the service section, and FIG. FIG. 4B is a cross-sectional view taken along line AA in FIG. 4A.
【００１２】図５は、同じく供用区間における本坑シ−
ルドトンネル１の側面部に新たにシ−ルドトンネル２が
接続される箇所の詳細図を示し、図５ａは、図４ａにお
けるＢ−Ｂ断面図、図５ｂは、図５ａにおける下方部分
の拡大図、図５ｃは、図５ｂにおける右下隅部分の拡大
図を示すものである。FIG. 5 shows the main shaft seal in the same service section.
5A is a detailed view of a portion where a shield tunnel 2 is newly connected to the side surface of the shield tunnel 1. FIG. 5A is a sectional view taken along line BB in FIG. 4A, and FIG. 5B is an enlarged view of a lower portion in FIG. 5A. 5c shows an enlarged view of the lower right corner in FIG. 5b.
【００１３】図６ａは、本坑シ−ルドトンネル１と接続
されたシ−ルドトンネル２の断面図を示し、図６ｂは、
図１の延伸区間と供用区間との間に設けた隔壁３の詳細
図を示すものである。FIG. 6a is a sectional view of a shield tunnel 2 connected to the main tunnel 1 and FIG.
FIG. 2 is a detailed view of a partition wall 3 provided between a stretching section and a service section in FIG. 1.
【００１４】図面に示すように、本坑シ−ルドトンネル
１は、円弧状から成るＲＣセグメント４を結合すること
により円筒状に形成されており、供用区間において本坑
シ−ルドトンネル１の側面部に新しくシ−ルドトンネル
２が接続されるが、本坑シ−ルドトンネル１を構成する
セグメントは、接続箇所となるセグメントを、ＲＣセグ
メント４に代えて鋼製セグメント５が使用される。As shown in the drawings, the main shaft shield tunnel 1 is formed in a cylindrical shape by connecting arc segments 4 formed in an arc shape, and a side surface of the main shaft shield tunnel 1 in a service section. A shield tunnel 2 is newly connected to the section, and the segment constituting the main shaft shield tunnel 1 uses a steel segment 5 instead of the RC segment 4 as a connection portion.
【００１５】該鋼製セグメント５はＲＣセグメント４と
同様円弧状からなり、図５ｂおよび図５ｃで示すよう
に、鋼製セグメント５を形成する一方の側面板は中心方
向へ伸ばすことによって内側面から突出する継手板６を
形成し、鋼製セグメント５における円筒部は、その継手
板６に鉄板７を溶接等で取り付けることにより鉄板７で
閉塞された空間部が形成される。The steel segment 5 is formed in an arc shape like the RC segment 4, and as shown in FIGS. 5b and 5c, one side plate forming the steel segment 5 is extended from the inner side surface to the center side. The projecting joint plate 6 is formed, and the cylindrical portion of the steel segment 5 has a space closed by the iron plate 7 by attaching the iron plate 7 to the joint plate 6 by welding or the like.
【００１６】本坑シ−ルドトンネル１を構成する鋼製セ
グメント５の継手板６に取り付けた鉄板７には、後にセ
パレ−タ−となるタイロッド８を挿通する孔が図４ａで
示すように、上下、左右に所定の間隔で設けられてい
る。The iron plate 7 attached to the joint plate 6 of the steel segment 5 constituting the main shaft shield tunnel 1 has a hole through which a tie rod 8 which will later become a separator is inserted as shown in FIG. It is provided at predetermined intervals on the top, bottom, left and right.
【００１７】本坑シ−ルドトンネル１の供用区間におい
て、本坑シ−ルドトンネル１の側面部に接続されるシ−
ルドトンネル２の構築方法について、図面に示す実施例
について説明する。In the service section of the main tunnel shield tunnel 1, a shield connected to the side surface of the main tunnel shield tunnel 1.
A method of constructing the tunnel 2 will be described with reference to an embodiment shown in the drawings.
【００１８】供用区間における本坑シ−ルドトンネル１
の側面部に新たにシ−ルドトンネル２が接続されるが、
本坑シ−ルドトンネル１を構成するＲＣセグメント４
は、シ−ルドトンネル２が接続される部分のセグメント
を、ＲＣセグメント４に代えて鋼製セグメント５が使用
される。Main tunnel shield tunnel 1 in service section
A new shield tunnel 2 is connected to the side of
RC segment 4 that constitutes the main tunnel shield tunnel 1
The steel segment 5 is used in place of the RC segment 4 in the portion where the shield tunnel 2 is connected.
【００１９】図５ｂおよび図５ｃに示すように、鋼製セ
グメント５の側面板は中心方向へ延びる継手板６が一体
に形成されており、該継手板６に対し鉄板７を溶接等に
より取り付けることにより、図２に示すように、本坑シ
−ルドトンネル１内に密閉された空間部９が形成され
る。図５ｃに示す左鋼製セグメント５の右側面板には中
心方向へ延びる継手板６が一体に形成されているが、右
鋼製セグメントの左側面板に中心方向へ延びる継手板６
を一体に形成しても良い。As shown in FIGS. 5b and 5c, a side plate of the steel segment 5 is integrally formed with a joint plate 6 extending toward the center, and an iron plate 7 is attached to the joint plate 6 by welding or the like. As a result, a closed space 9 is formed in the main tunnel 1 as shown in FIG. The right side plate of the left steel segment 5 shown in FIG. 5c is integrally formed with a joint plate 6 extending in the center direction, while the left side plate of the right steel segment is formed with a joint plate 6 extending in the center direction.
May be integrally formed.
【００２０】鉄板７には予め所定の間隔でタイロッド８
を挿通する孔が設けられており、相対する鉄板７の外側
にＨ形鋼或いは溝形鋼等から成る横架材１０を取り付
け、該横架材１０を介して鉄板７に設けた挿通孔にタイ
ロッド８が挿通されるが、該タイロッド８は鋼管１２に
より被覆されている。そして横架材１０間をタイロッド
８で締め付けた後、２枚の鉄板７により閉塞された本坑
シ−ルドトンネル１内の空間部９へ、鉄板７の上方から
貧配合コンクリ−ト１１等が打設され隔壁３が構築され
る。The tie rods 8 are provided on the iron plate 7 at predetermined intervals.
A horizontal member 10 made of H-shaped steel, channel steel, or the like is attached to the outside of the opposed iron plate 7, and a through hole provided in the iron plate 7 through the horizontal member 10. The tie rod 8 is inserted, and the tie rod 8 is covered with a steel pipe 12. After tightening the tie rods 8 between the horizontal members 10, the poorly-mixed concrete 11 and the like are inserted from above the iron plate 7 into the space 9 in the main shaft shield tunnel 1 closed by the two iron plates 7. It is cast and the partition wall 3 is constructed.
【００２１】このようにして、本坑シ−ルドトンネル１
内に、２枚の鉄板７と貧配合されたコンクリ−ト１１お
よびタイロッド８により隔壁３が形成され、打設された
コンクリ−トが硬化した後、鋼製セグメント５の側面部
を掘削シ−ルド機等により切削し、更に貧配合されたコ
ンクリ−ト１１も切削しながら掘削シ−ルド機を前進さ
せることにより、本坑シ−ルドトンネル１の側面部に新
たにシ−ルドトンネル２が接合される。Thus, the main tunnel shield tunnel 1
The partition 3 is formed by the concrete 11 and the tie rod 8 which are poorly mixed with the two iron plates 7, and after the cast concrete is hardened, the side surface of the steel segment 5 is excavated. The excavation shield machine is moved forward while cutting the poorly mixed concrete 11 by cutting with a shielding machine or the like, so that a new shield tunnel 2 is formed on the side surface of the main tunnel tunnel 1. Joined.
【００２２】次いで、本坑シ−ルドトンネル１内に充填
された貧配合コンクリ−ト１１、鉄板７、タイロッド８
および横架材１０を撤去することにより、本坑シ−ルド
トンネル１と新設シ−ルドトンネル２が連通される。Next, the poorly-mixed concrete 11, the iron plate 7, and the tie rod 8 filled in the main tunnel shield tunnel 1.
By removing the horizontal member 10, the shield tunnel 1 of the main shaft and the new tunnel 2 are communicated.
【００２３】以上供用区間における本坑シ−ルドトンネ
ル１の側面に、新たにシ−ルドトンネルを接続する工事
が行われる際、本坑シ−ルドトンネル１内部に設置され
る隔壁３について説明したが、延伸区間においても本坑
シ−ルドトンネル１内部に洪水遮断用の隔壁３が設置さ
れる。The partition wall 3 installed inside the shield tunnel 1 of the main shaft when a new tunnel is connected to the side surface of the shield tunnel 1 of the main shaft in the service section has been described. However, even in the extension section, a bulkhead 3 for blocking floods is installed inside the main tunnel 1.
【００２４】隔壁３は水圧に耐えられる強度が必要で、
また、本坑シ−ルドトンネル１に対し余分な変形や応力
を増加させてはならないので、その設置位置は、立坑か
らの流入水の衝撃を受けない位置（接合部から２０ｍ程
度離れた位置）に設置する。The partition wall 3 needs to be strong enough to withstand water pressure.
In addition, since excessive deformation and stress should not be increased with respect to the main shaft shield tunnel 1, the installation position is a position where the impact of inflow water from the shaft is not received (a position approximately 20m away from the junction). Installed in
【００２５】本坑シ−ルドトンネル１はＲＣセグメント
４により形成されているが、隔壁３が設置される箇所に
は、供用区間の隔壁３を形成するセグメントと同じ鋼製
セグメント５が使用され、該鋼製セグメントの継手板６
に対し鉄板７を溶接等で取り付けることにより、本坑シ
−ルドトンネル１内に、２枚の鉄板７で閉塞された空間
部９が形成される。The main tunnel 1 is formed by RC segments 4, and the same steel segments 5 as the segments forming the partition 3 in the service section are used where the partition 3 is installed. Joint plate 6 of the steel segment
The iron plate 7 is attached by welding or the like, so that a space 9 closed by the two iron plates 7 is formed in the shield tunnel 1 of the main shaft.
【００２６】次いで鋼製セグメント５の継手板６に溶接
された各鉄板７の外側に横架材１０を設け、該横架材１
０を介してタイロッド８を鉄板７に挿通した後、該タイ
ロッド８を締め付ける。Next, a horizontal member 10 is provided outside each iron plate 7 welded to the joint plate 6 of the steel segment 5.
After the tie rod 8 is inserted through the iron plate 7 through the “0”, the tie rod 8 is tightened.
【００２７】そして横架材１０間をタイロッド８で締め
付けた後、２枚の鉄板７で閉塞された本坑シ−ルドトン
ネル１内の空間部９へ、鉄板７の上方から貧配合コンク
リ−ト１１等が打設され隔壁３が構築される。なお、隔
壁３には、資機材搬入用として、或いは人用としての開
閉ハッチ１３が取り付けられる。After tightening the tie rods 8 between the horizontal members 10, the poorly mixed concrete is inserted from above the iron plate 7 into the space 9 in the main shaft shield tunnel 1 closed by the two iron plates 7. 11 and the like are cast and the partition wall 3 is constructed. The partition 3 is provided with an opening / closing hatch 13 for carrying in materials or equipment or for human use.
【００２８】[0028]
【発明の効果】本願発明は、本坑シ−ルドトンネル内に
設ける隔壁を、鋼製セグメント、鋼製セグメントに溶着
される鉄板、鉄板の外側に取り付ける横架材、鉄板を挿
通するタイロッド、および鋼製セグメントと鉄板で閉塞
した空間部に充填する貧配合コンクリ−トにより形成し
ているので、隔壁の厚さが薄いものであっても、接合部
となる鋼製セグメントおよび硬化したコンクリ−トを掘
削シ−ルド機により切削する際の圧力、或いは水圧にも
充分耐える強度を有するものである。The present invention provides a steel segment, a steel plate welded to the steel segment, a horizontal member attached to the outside of the steel plate, a tie rod for inserting the steel plate, and a partition provided in the main tunnel. Since it is formed of poorly-mixed concrete that fills the space closed by the steel segment and the iron plate, even if the thickness of the partition wall is thin, the steel segment to be the joint and the hardened concrete are used. Has sufficient strength to withstand the pressure or water pressure when cutting with a drilling shield machine.
【００２９】[0029]
【図１】地下河川を接続する本坑シ−ルドトンネルにお
ける供用区間と延進区間を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a service section and an extension section in a main tunnel shield tunnel connecting an underground river.
【図２】本坑シ−ルドトンネルの供用区間における隔壁
を示す斜視図である。FIG. 2 is a perspective view showing a partition wall in a service section of the main tunnel tunnel.
【図３】本坑シ−ルドトンネルの延伸区間における隔壁
を示す斜視図である。FIG. 3 is a perspective view showing a partition wall in an extension section of the main shaft shield tunnel.
【図４】本坑シ−ルドトンネルの供用区間における隔壁
を示す詳細図である。FIG. 4 is a detailed view showing a partition wall in a service section of the main shaft shield tunnel.
【図５】本坑シ−ルドトンネルの供用区間における隔壁
を示す詳細図である。FIG. 5 is a detailed view showing a partition wall in a service section of the main shaft shield tunnel.
【図６】本坑シ−ルドトンネルとシ−ルドトンネルの縦
断面図および延伸区間と供用区間の間に設けた隔壁の詳
細図である。FIG. 6 is a vertical sectional view of a main tunnel shield tunnel and a shield tunnel, and a detailed view of a partition wall provided between an extension section and a service section.
【図７】従来技術の本坑シ−ルドトンネルとシ−ルドト
ンネルを示す縦断面図である。FIG. 7 is a longitudinal sectional view showing a main tunnel shield tunnel and a shield tunnel according to the related art.
【図８】従来技術の本坑シ−ルドトンネルとシ−ルドト
ンネルを示す縦断面図である。FIG. 8 is a longitudinal sectional view showing a main tunnel shield tunnel and a shield tunnel according to the related art.
１ 本坑シ−ルドトンネル ２ シ−ルドトンネル ３ 隔壁 ４ ＲＣセグメント ５ 鋼製セグメント ６ 継手板 ７ 鉄板 ８ タイロッド ９ 空間部 １０ 横架材 １１ 貧配合コンクリ−ト １２ 鋼管 １３ 開閉ハッチ ａ 既設シ−ルドトンネル ｂ 掘削シ−ルド機 ｃ シ−ルドトンネル ｄ ボ−リング孔 ｅ 凍結管 ｆ 支保材 ｇ パネル ｈ 充填材料 ｉ 補強材 ｊ セグメント DESCRIPTION OF SYMBOLS 1 Main tunnel tunnel 2 Shield tunnel 3 Partition wall 4 RC segment 5 Steel segment 6 Joint plate 7 Iron plate 8 Tie rod 9 Space part 10 Horizontal material 11 Poorly mixed concrete 12 Steel pipe 13 Opening / closing hatch a Existing sea Shield tunnel b Excavation shield machine c Shield tunnel d Bore hole e Freezing tube f Supporting material g Panel h Filling material i Reinforcement j Segment
───────────────────────────────────────────────────── フロントページの続き (72)発明者 柴田 学 東京都港区元赤坂一丁目２番７号 鹿島建 設株式会社内 (72)発明者 玉田 康一 東京都港区元赤坂一丁目２番７号 鹿島建 設株式会社内 Ｆターム(参考） 2D054 AA03 AA04 AC02 EA07 EA09 2D055 BA01 BB10 KB04 LA02 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor: Manabu Shibata Kashima Construction Co., Ltd. 1-2-7 Moto-Akasaka, Minato-ku, Tokyo (72) Inventor Koichi Tamada 1-2-1-2 Moto-Akasaka, Minato-ku, Tokyo No. 7 F-term in Kashima Construction Co., Ltd. (Reference) 2D054 AA03 AA04 AC02 EA07 EA09 2D055 BA01 BB10 KB04 LA02
Claims (6)
ト、鋼製セグメントに取り付ける鉄板、両鉄板を貫通す
るタイロッド、鋼製セグメントと鉄板で形成される空間
部に充填する貧配合コンクリ−トから成る隔壁を設けた
ことを特徴とする本坑シ−ルドトンネルにおける隔壁構
造。A steel tunnel, an iron plate attached to the steel segment, a tie rod penetrating both iron plates, a poorly-mixed concrete filled in a space formed by the steel segment and the iron plate. A partition structure in a main shaft shield tunnel, wherein a partition wall comprising:
徴とする請求項１記載の本坑シ−ルドトンネルにおける
隔壁構造。2. The bulkhead structure according to claim 1, wherein a joint plate is provided on the steel segment.
所のセグメントを鋼製セグメントとし、該鋼製セグメン
トに鉄板を取り付けてトンネル内部に鉄板で閉塞された
空間部を形成し、鉄板の外側に横架材を取り付け、両鉄
板にタイロッドを挿通した後締め付け、該空間部へ貧配
合コンクリ−トを充填して成る隔壁の構築方法。3. A steel segment is used as a segment where a partition wall is provided in the main shaft shield tunnel, and an iron plate is attached to the steel segment to form a space closed by the iron plate inside the tunnel. A method of constructing a partition wall in which a horizontal member is attached to the outside, a tie rod is inserted through both iron plates and then tightened, and the space is filled with poorly-mixed concrete.
徴とする請求項３記載の隔壁の構築方法。4. The method according to claim 3, wherein a joint plate is provided on the steel segment.
る箇所の本坑シ−ルドトンネルのセグメントを鋼製セグ
メントとし、該鋼製セグメントに鉄板を取り付けてトン
ネル内部に鉄板で閉塞された空間部を形成し、鉄板の外
側に横架材を取り付け、両鉄板にタイロッドを挿通した
後締め付けて空間部へ貧配合コンクリ−トを充填し、該
コンクリ−トが硬化した後掘削シ−ルド機で鋼製セグメ
ントおよび該コンクリ−トを切削して側面部にシ−ルド
トンネルを接続した後本坑シ−ルドトンネル内の隔壁を
撤去して成る本坑シ−ルドトンネルと接続・分岐シ−ル
ドトンネルの構築方法。5. A steel tunnel is used as a segment of a main tunnel shield tunnel at a location where a shield tunnel is newly connected to a side portion, and an iron plate is attached to the steel segment, and the inside of the tunnel is closed with an iron plate. A space is formed, a horizontal member is attached to the outside of the iron plate, a tie rod is inserted into both iron plates, and then tightened to fill the space with poorly-mixed concrete, and after the concrete hardens, an excavation shield is formed. The steel tunnel and the concrete are cut by a machine, the shield tunnel is connected to the side, and the bulkhead inside the main tunnel is removed. -How to build a tunnel.
徴とする請求項５記載の本坑シ−ルドトンネルと接続・
分岐シ−ルドトンネルの構築方法。6. A tunnel connected to a main shaft shield tunnel according to claim 5, wherein a joint plate is provided on the steel segment.
How to build a branch shield tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001016610A JP2002220991A (en) | 2001-01-25 | 2001-01-25 | Partition wall installed in main-tunnel shield tunnel and construction method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001016610A JP2002220991A (en) | 2001-01-25 | 2001-01-25 | Partition wall installed in main-tunnel shield tunnel and construction method therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002220991A true JP2002220991A (en) | 2002-08-09 |
Family
ID=18882947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001016610A Pending JP2002220991A (en) | 2001-01-25 | 2001-01-25 | Partition wall installed in main-tunnel shield tunnel and construction method therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002220991A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007303195A (en) * | 2006-05-12 | 2007-11-22 | Shimizu Corp | Construction method for shield tunnel |
| KR101012499B1 (en) | 2010-10-29 | 2011-02-08 | 협성개발(주) | A watertight door installation apparatus for theunderground passage |
| JP2011032684A (en) * | 2009-07-30 | 2011-02-17 | Ohbayashi Corp | Lining structure and lining method |
| US9219907B2 (en) | 2007-01-22 | 2015-12-22 | California Institute Of Technology | Method and apparatus for quantitative 3-D imaging |
| US9736463B2 (en) | 2007-04-23 | 2017-08-15 | California Institute Of Technology | Single-lens, single-sensor 3-D imaging device with a central aperture for obtaining camera position |
| US10182223B2 (en) | 2010-09-03 | 2019-01-15 | California Institute Of Technology | Three-dimensional imaging system |
| JP2020159061A (en) * | 2019-03-26 | 2020-10-01 | 株式会社奥村組 | Method for constructing work pit intersection in mountain tunnel construction |
| US11406264B2 (en) | 2016-01-25 | 2022-08-09 | California Institute Of Technology | Non-invasive measurement of intraocular pressure |
| JP7449261B2 (en) | 2021-05-13 | 2024-03-13 | 大成建設株式会社 | Excavation base and how to start and reach the excavation machine |
-
2001
- 2001-01-25 JP JP2001016610A patent/JP2002220991A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007303195A (en) * | 2006-05-12 | 2007-11-22 | Shimizu Corp | Construction method for shield tunnel |
| JP4730607B2 (en) * | 2006-05-12 | 2011-07-20 | 清水建設株式会社 | Construction method of shield tunnel |
| US9219907B2 (en) | 2007-01-22 | 2015-12-22 | California Institute Of Technology | Method and apparatus for quantitative 3-D imaging |
| US9736463B2 (en) | 2007-04-23 | 2017-08-15 | California Institute Of Technology | Single-lens, single-sensor 3-D imaging device with a central aperture for obtaining camera position |
| JP2011032684A (en) * | 2009-07-30 | 2011-02-17 | Ohbayashi Corp | Lining structure and lining method |
| US10182223B2 (en) | 2010-09-03 | 2019-01-15 | California Institute Of Technology | Three-dimensional imaging system |
| US10742957B2 (en) | 2010-09-03 | 2020-08-11 | California Institute Of Technology | Three-dimensional imaging system |
| KR101012499B1 (en) | 2010-10-29 | 2011-02-08 | 협성개발(주) | A watertight door installation apparatus for theunderground passage |
| US11406264B2 (en) | 2016-01-25 | 2022-08-09 | California Institute Of Technology | Non-invasive measurement of intraocular pressure |
| JP2020159061A (en) * | 2019-03-26 | 2020-10-01 | 株式会社奥村組 | Method for constructing work pit intersection in mountain tunnel construction |
| JP7148450B2 (en) | 2019-03-26 | 2022-10-05 | 株式会社奥村組 | Construction Method of Work Mine Intersection in Mountain Tunnel Construction |
| JP7449261B2 (en) | 2021-05-13 | 2024-03-13 | 大成建設株式会社 | Excavation base and how to start and reach the excavation machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002220991A (en) | Partition wall installed in main-tunnel shield tunnel and construction method therefor | |
| JPH0765455B2 (en) | Construction method for branch / joint of shield tunnel and temporary bulkhead construction device for branch / joint | |
| JP2017122354A (en) | Construction method of freezing pipe | |
| CN104153347A (en) | Repair structure of underground diaphragm wall panel notch and construction method of repair structure | |
| JP5806576B2 (en) | Pipe roof and pipe roof construction method | |
| JP2009180035A (en) | Method of connecting caisson | |
| JP3194192B2 (en) | Open shield method | |
| JP2893349B2 (en) | Large section tunnel structure and its construction method. | |
| JP2018003264A (en) | Pipeline connection structure and construction method for the same | |
| CN110080249A (en) | A kind of pressure filling formula Diaphragm Wall Support Structure and its construction method | |
| JP6832496B2 (en) | Construction method of intake / discharge port structure | |
| JP2006152680A (en) | Joining construction method for shield tunnel and structure of shield tunnel by its construction method | |
| KR200262901Y1 (en) | Coupling Structure of Leading Pipe for Underwater Prefabricating Intake Tower | |
| JP2611104B2 (en) | Water passing method for continuous underground wall | |
| KR102593946B1 (en) | A two-arch tunnel having a dedicate drainage case inside the upper girder of the central wall and its construction method | |
| JP2693028B2 (en) | Construction method of human hole in middle of pipeline | |
| JPH11117686A (en) | Segment corresponding to opening covered with resin on inner surface | |
| JP2018178593A (en) | Underground wall construction method | |
| JPH07127051A (en) | Construction and erecting method for reinforcement cage for continuous underground wall execution | |
| JP4010966B2 (en) | Barrier pipe for impermeable wall installation | |
| JP2003064980A (en) | Enclosure structure of tunnel lining structural body making use of lining element and enclosing method | |
| JP4079749B2 (en) | Rehabilitation method for existing manhole | |
| CN118030113A (en) | Local repair method for accident tunnel | |
| JPH07259078A (en) | Steel material for shield opening, constructing method for underground continuous wall, and boring method for pit | |
| KR20230108567A (en) | Longitudinal and lateral integration structure of pile and structure manufactured using the same |