JP4494285B2 - Segment and segment joint structure - Google Patents

Segment and segment joint structure Download PDF

Info

Publication number
JP4494285B2
JP4494285B2 JP2005143178A JP2005143178A JP4494285B2 JP 4494285 B2 JP4494285 B2 JP 4494285B2 JP 2005143178 A JP2005143178 A JP 2005143178A JP 2005143178 A JP2005143178 A JP 2005143178A JP 4494285 B2 JP4494285 B2 JP 4494285B2
Authority
JP
Japan
Prior art keywords
segment
bolt
face
tunnel
pin
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.)
Active
Application number
JP2005143178A
Other languages
Japanese (ja)
Other versions
JP2006316590A (en
Inventor
勝 河越
義和 木戸
敬一 渡辺
豊 藤野
伸昭 横井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kumagai Gumi Co Ltd
Original Assignee
Kumagai Gumi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kumagai Gumi Co Ltd filed Critical Kumagai Gumi Co Ltd
Priority to JP2005143178A priority Critical patent/JP4494285B2/en
Publication of JP2006316590A publication Critical patent/JP2006316590A/en
Application granted granted Critical
Publication of JP4494285B2 publication Critical patent/JP4494285B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Lining And Supports For Tunnels (AREA)

Description

本発明は、トンネル工事の工事費を削減可能とするセグメント及びセグメント接合構造に関する。   The present invention relates to a segment and a segment joint structure that can reduce the construction cost of tunnel construction.

シールドトンネルのトンネル壁体を形成するセグメントは、トンネル壁体の内面を形成する内面とトンネル壁体の外面を形成する外面と内面と外面とを繋ぐ側面とを備え、側面が、切羽側に向けられる切羽側側面と、坑口側に向けられる坑口側側面と、切羽側側面の一端と坑口側側面の一端とを繋ぐ一側面と、切羽側側面の他端と坑口側側面の他端とを繋ぐ他側面とで形成されるものである。セグメント同士は、構築するトンネルの周方向に沿ってセグメント同士を接合するセグメント間接合部と、トンネルの構築進行方向に沿ってセグメント同士を接合するリング間接合部とにより接合される。すなわち、セグメント間接合部は、一方のセグメントの一側面と他方のセグメントの他側面との接合部であり、リング間接合部は、一方のセグメントの切羽側側面と他方のセグメントの坑口側側面との接合部である。リング間接合部の継手（接合手段）としてピン継手を用いた場合、セグメント間接合部の継手としては、例えば、一方のセグメントの一側面にトンネルの構築進行方向に沿って延長するレール係合具を設け、他方のセグメントの他側面にはレール係合具内をスライドしてレール係合具に係合する係合部材を設ける。しかし、このようなレール係合具と係合部材とからなる継手は高価であり、コストが嵩む。そこで、セグメント同士を安価なボルト及びナットにより接合する接合構造が知られている。これはトンネル壁体の内側となるセグメントの内面にボルトボックスが形成され、ボルトボックスよりセグメントの側面に貫通したボルト貫通孔が形成され、当該セグメントに接合されるセグメントにナットが設けられた構成であり、ボルトを貫通孔に通してナットに締結することでセグメント同士を接合する（例えば、特許文献１等参照）。
特開平１０−２６６７９０号公報 The segment forming the tunnel wall of the shield tunnel includes an inner surface forming the inner surface of the tunnel wall body, an outer surface forming the outer surface of the tunnel wall body, and a side surface connecting the inner surface and the outer surface, and the side surface faces the face side. The side face connecting the one end of the face side and the other end of the face side, and the other end of the face side. It is formed with the other side. The segments are joined by an inter-segment joint that joins the segments along the circumferential direction of the tunnel to be constructed and an inter-ring joint that joins the segments along the construction progress direction of the tunnel. That is, the inter-segment joint is a joint between one side surface of one segment and the other side surface of the other segment, and the inter-ring joint is composed of a face side surface of one segment and a well side surface of the other segment. It is a junction part. When a pin joint is used as a joint (joining means) for the joint between rings, as a joint for the inter-segment joint, for example, a rail engagement tool that extends on one side surface of one segment along the tunnel construction progress direction An engaging member that slides in the rail engaging tool and engages with the rail engaging tool is provided on the other side of the other segment. However, such a joint composed of a rail engagement tool and an engagement member is expensive and expensive. Therefore, a joining structure is known in which the segments are joined together with inexpensive bolts and nuts. This is a configuration in which a bolt box is formed on the inner surface of the segment that is the inside of the tunnel wall body, a bolt through hole that penetrates the side of the segment from the bolt box is formed, and a nut is provided on the segment that is joined to the segment. Yes, the segments are joined by passing the bolts through the through holes and fastening them to the nuts (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 10-266790

しかしながら、セグメント同士をボルト及びナットにより接合する従来技術では、トンネル壁体の内面となるセグメントの内面に形成されたボルトボックスを埋める後作業が必要となるので、工事が煩雑となる。   However, in the prior art in which the segments are joined to each other with bolts and nuts, a work after filling the bolt box formed on the inner surface of the segment, which is the inner surface of the tunnel wall body, is required.

本発明のセグメントは、トンネル壁体の内面を形成する内面とトンネル壁体の外面を形成する外面と内面と外面とを繋ぐ側面とボルト貫通部とボルト締結部とピン結合孔とピンとを備え、側面は、切羽側に向けられる切羽側側面と、坑口側に向けられる坑口側側面と、切羽側側面の一端と坑口側側面の一端とを繋ぐ一側面と、切羽側側面の他端と坑口側側面の他端とを繋ぐ他側面とで形成され、ボルト貫通部は、切羽側側面と一側面とに跨って直線状に貫通されて形成され、ボルト締結部は、他側面にボルト挿入入口を有してセグメントの内部に設けられたナットにより形成され、ピンは、一端側が坑口側側面よりセグメントの内側に埋め込まれて、他端側が坑口側側面より坑口側に突出するよう形成され、ピン結合孔は、切羽側側面よりセグメントの内側に向けて坑口側方向に延長する孔により形成され、ボルト貫通部及びボルト締結部は、セグメントの厚さ方向に沿って複数設けられたことを特徴とする。上記ボルト貫通部とは別のボルト貫通部と上記ボルト締結部とは別のボルト締結部とを備え、別のボルト貫通部が、他側面と坑口側側面とに跨って直線状に貫通されて形成され、別のボルト締結部が、切羽側側面にボルト挿入入口を有してセグメントの内部に設けられたナットにより形成され、別のボルト貫通部及び別のボルト締結部は、セグメントの厚さ方向に沿って複数設けられたことも特徴とする。
本発明のセグメント接合構造は、上述のセグメントを用い、トンネルの構築進行方向に沿って相対する一方のセグメントの坑口側側面より突出するピンと他方のセグメントの切羽側側面に形成されたピン結合孔とが結合され、トンネルの周方向に沿って相対する一方のセグメントの一側面と他方のセグメントの他側面とが、ボルト貫通部を経由してボルト締結部のナットに締結されたボルトにより接合されたことを特徴とする。トンネルの構築進行方向に沿って相対する一方のセグメントの坑口側側面より突出するピンと他方のセグメントの切羽側側面に形成されたピン結合孔とが結合され、トンネルの周方向に沿って相対する一方のセグメントの一側面と他方のセグメントの他側面とが、ボルト貫通部を経由してボルト締結部のナットに締結されたボルトにより接合され、トンネルの周方向に沿って相対する一方のセグメントの坑口側側面と他方のセグメントの切羽側側面とが、別のボルト貫通部を経由して別のボルト締結部のナットに締結されたボルトにより接合されたことも特徴とする。 The segment of the present invention includes an inner surface forming the inner surface of the tunnel wall body, an outer surface forming the outer surface of the tunnel wall body, a side surface connecting the inner surface and the outer surface, a bolt penetration portion, a bolt fastening portion, a pin coupling hole, and a pin . The side faces are the face side facing the face side, the well side face facing the well side, one side connecting one end of the face side and one end of the well side, the other end of the face side and the well side The bolt penetrating portion is formed by penetrating linearly across the face side surface and one side surface, and the bolt fastening portion has a bolt insertion inlet on the other side surface. It is formed by a nut provided inside the segment, and the pin is formed so that one end side is embedded inside the segment from the well side surface and the other end projects from the well side surface to the well side. The hole is opened from the side of the face. Formed by holes extending in the wellhead side direction toward the inside of the instrument, the bolt through portion and the bolt fastening portions is characterized in that provided in plural along the thickness direction of the segment. A bolt penetration part different from the bolt penetration part and a bolt fastening part different from the bolt fastening part are provided, and the other bolt penetration part is linearly penetrated across the other side surface and the well side surface. And another bolt fastening portion is formed by a nut provided inside the segment with a bolt insertion inlet on the side face of the face , and the other bolt penetration portion and the other bolt fastening portion are formed by the thickness of the segment. It is also characterized in that a plurality are provided along the direction .
The segment joint structure of the present invention uses the above-mentioned segments, and includes a pin protruding from the well-side side surface of one segment facing the construction progress direction of the tunnel and a pin coupling hole formed on the face-side surface of the other segment. There are combined, and the other side surface of the one side and the other segment of the circumferential direction of the opposite one along segments of the tunnel, are joined by the fastened bolts through the bolt through portion to the bolt fastening portions of the nut It is characterized by that. The pin projecting from the well-side side surface of one segment facing the construction progress direction of the tunnel and the pin coupling hole formed on the face side surface of the other segment are coupled together, and the one facing the circumferential direction of the tunnel wellhead of the one side surface and another side surface of the other segments of the segment via the bolt through portions are joined by a bolt which is fastened to the bolt fastening portions of the nut, the one segment relative to the circumferential direction of the tunnel a working face-side side surface of the side side and the other segment, it shall be the features that are joined by the fastened bolts through another bolt through portion to another bolt fastening portion of the nut.

本発明によれば、安価なボルト継手を用いてセグメント間接合部の接合を実現できるとともにトンネル壁体の内面にボルトボックスを無くすことができてボルトボックスを埋めるような煩雑な後作業を不要とできるセグメントを得ることができる。加えて、ボルト継手によりセグメント間接合部の接合をも強固にできるセグメントを得ることができる。よって、トンネル工事の工事費を削減できるセグメントを得ることができる。また、ピン結合孔とピンとを備えたので、リング間接合部の接合作業をスムーズに行えるとともにリング間接合部の接合を強固にできる。また、ボルト貫通部及びボルト締結部が、セグメントの厚さ方向に沿って複数設けられたので、目開きをより効果的に防止できる。さらに、別のボルト貫通部及び別のボルト締結部が、セグメントの厚さ方向に沿って複数設けられたので、目違いをより効果的に防止できる。
本発明のセグメント接合構造によれば、相対するセグメントの他側面とセグメントの一側面との接合、即ち、セグメント間接合部の接合が、安価なボルト継手により実現されて、かつ、トンネル壁体の内面にボルトボックスを無くすことができてボルトボックスを埋めるような煩雑な後作業を不要とできるので、トンネル工事の工事費を削減できる。さらに、別のボルト継手により、相対するセグメントの切羽側側面とセグメントの坑口側側面との接合、即ち、リング間接合部の接合を実現できて、リング間接合部の接合を強固にできる。リング間接合部の接合に、ピン結合孔とピンとによるピン継手を用いることで、リング間接合部の接合作業をスムーズに行えるとともにリング間接合部の接合を強固にできる。 According to the present invention, it is possible to realize joints between segments using an inexpensive bolt joint, and eliminate the need for complicated post-work such as filling the bolt box by eliminating the bolt box on the inner surface of the tunnel wall body. Segments that can be obtained. In addition, it is possible to obtain a segment capable of strengthening the joining of the joint portion between the segments by the bolt joint. Therefore, it is possible to obtain a segment that can reduce the construction cost of tunnel construction. Further, since a pin coupling hole and the pin can be firmly bonding inter-ring joint together can be smoothly joining work-ring junction portion. Moreover, since the bolt penetration part and the bolt fastening part were provided with two or more along the thickness direction of a segment, an opening can be prevented more effectively. Furthermore, since a plurality of different bolt penetration portions and different bolt fastening portions are provided along the thickness direction of the segment, it is possible to more effectively prevent a mistake.
According to the segment joint structure of the present invention, the joint between the other side surface of the opposite segment and one side surface of the segment, that is, the joint of the inter-segment joint is realized by an inexpensive bolt joint, and the tunnel wall body Since the bolt box can be eliminated on the inner surface and the complicated post-work such as filling the bolt box is not required, the construction cost for tunnel construction can be reduced. Furthermore, the joint between the face side of the opposing segment and the side surface of the wellhead side of the segment, that is, the joint of the inter-ring joint can be realized by another bolt joint, and the joint of the inter-ring joint can be strengthened. By using a pin joint with a pin coupling hole and a pin for joining the joint part between rings, the joint work of the joint part between rings can be performed smoothly and the joint of the joint part between rings can be strengthened.

最良の形態１
図１乃至図３は本発明の最良の形態１を示し、図１はセグメント同士の接合構造を示し、図２はセグメント間接合部の断面を示し、図３はシールド工法によるシールドトンネルの構築方法の概要を示す。 Best form 1
1 to 3 show the best mode 1 of the present invention, FIG. 1 shows a joint structure between segments, FIG. 2 shows a cross section of the joint part between segments, and FIG. 3 shows a shield tunnel construction method by a shield construction method. The outline of is shown.

図３に示すように、シールド工事は、シールドマシン１の後方に複数のセグメント２を接合していって、シールドマシン１の推進方向に沿った方向の長さが一定幅の円筒壁体３を組立て、組立てた円筒壁体３の前面４でシールドマシン１の推進ジャッキ５の反力をとってシールドマシン１を推進させて地山１００を掘進してから上記円筒壁体３の前面４に新しい円筒壁体３を組立て、以後、シールドマシン１の推進と円筒壁体３の組立てとを繰り返してシールドトンネルのトンネル壁体５０を構築する。   As shown in FIG. 3, in the shield work, a plurality of segments 2 are joined to the rear of the shield machine 1, and the cylindrical wall 3 having a constant length along the propulsion direction of the shield machine 1 is formed. After assembling, the reaction force of the propulsion jack 5 of the shield machine 1 is taken at the front face 4 of the assembled cylindrical wall body 3 to propel the shield machine 1 and dig the ground 100, and then the front face 4 of the cylindrical wall body 3 is new. After assembling the cylindrical wall body 3, the tunnel wall body 50 of the shield tunnel is constructed by repeating the propulsion of the shield machine 1 and the assembly of the cylindrical wall body 3.

１つ１つのセグメント２は、円筒壁体３の筒の中心を基準として円筒壁体３を所定の角度間隔で分割した板状のコンクリート製品である。つまり、図１に示すように、円筒壁体３の内周面及び外周面の一部に相当する弧状の内面６と内面６に平行な外面７を備えた均一厚さの板状のコンクリート製品であって、トンネル壁体を構成する部品である。セグメント２は、内面６に相対して内面６を見た場合、外面７に相対して外面７を見た場合には、当該内面６や外面７は矩形であり、この矩形で弧状の内面６と外面７とを繋ぐ４つの側面を備える。   Each segment 2 is a plate-like concrete product obtained by dividing the cylindrical wall body 3 at a predetermined angular interval with the center of the cylinder of the cylindrical wall body 3 as a reference. That is, as shown in FIG. 1, a plate-shaped concrete product having a uniform thickness provided with an arc-shaped inner surface 6 corresponding to an inner peripheral surface and a part of the outer peripheral surface of the cylindrical wall body 3 and an outer surface 7 parallel to the inner surface 6. And it is a part which comprises a tunnel wall body. When the segment 2 is viewed from the inner surface 6 relative to the inner surface 6 and the outer surface 7 is viewed from the outer surface 7 relative to the inner surface 6, the inner surface 6 and the outer surface 7 are rectangular. And four side surfaces that connect the outer surface 7 to each other.

図１に示すように、セグメント２の４つの側面は、坑口側に向けられる坑口側側面８、切羽側に向けられる切羽側側面９、一側面１０、他側面１１である。坑口側側面８、切羽側側面９、一側面１０、他側面１１はそれぞれ平面である。坑口側側面８に相対して坑口側側面８を見た場合、切羽側側面９に相対して切羽側側面９を見た場合には、当該坑口側側面８や切羽側側面９は弧状に延長する面である。一側面１０に相対して一側面１０を見た場合、他側面１１に相対して他側面１１を見た場合には、当該一側面１０や他側面１１は矩形面である。坑口側側面８と切羽側側面９とが互いに平行である。当該一側面１０や他側面１１は、円筒壁体３の円筒の中心線に沿って円筒の一端から他端に延長する平面である。   As shown in FIG. 1, the four side surfaces of the segment 2 are a wellhead side surface 8 directed to the wellhead side, a face side surface 9 directed to the face side, one side surface 10, and the other side surface 11. The wellhead side surface 8, the face side surface 9, the one side surface 10, and the other side surface 11 are flat surfaces. When the well side surface 8 is viewed relative to the well side 8 and when the face side 9 is viewed relative to the face side 9, the well side 8 and face side 9 extend in an arc. It is a surface to do. When the one side surface 10 is viewed relative to the one side surface 10 and the other side surface 11 is viewed relative to the other side surface 11, the one side surface 10 and the other side surface 11 are rectangular surfaces. The well side surface 8 and the face side surface 9 are parallel to each other. The one side surface 10 and the other side surface 11 are flat surfaces extending from one end of the cylinder to the other end along the center line of the cylinder of the cylindrical wall 3.

セグメント２は、ボルト貫通部１５、ボルト締結部１６、ピン１７、ピン結合孔１８を備える。ボルト貫通部１５は、セグメント２の切羽側側面９と一側面１０とがなす角部の近傍における切羽側側面９の一端２１側に形成されたボルトボックス２２と、ボルトボックス２２の底面２３とセグメント２の一側面１０とに跨って直線状に貫通するボルト貫通孔２４とにより形成される。つまり、切羽側側面９にはボルト貫通孔２４を貫通するボルト３０の頭を収納するボルトボックス２２が設けられる。ボルト貫通孔２４は、切羽側側面９に対して坑口側側面８の方向に垂直に延長する貫通孔ではなく、切羽側側面９から一側面１０の方向に傾斜し、一側面１０の方向に斜めに延長して一側面１０に到達する貫通孔である。ボルト締結部１６は、セグメント２の切羽側側面９と他側面１１とがなす角部の近傍における他側面１１の切羽側側面９側を入口としてセグメント２の内側に埋め込まれたナット２５とナット２５が固定状態に収納される収納孔２６とにより形成される。つまり、他側面１１にボルト挿入入口２７を有してセグメント２の内部に設けられたナット２５により形成されたボルト締結部１６を備える。既に固定されたセグメント２の他側面１１と別のセグメント２の一側面１０とが互いに取付状態に付き合わされた場合において、ボルト貫通孔２４の出口２４ａとナット２５の挿入入口２７とが連接されて、ボルト貫通孔２４の孔の中心線とナット２５の孔の中心線とが一致し、これら孔の中心線２４Ｙが、別のセグメント２の切羽側側面９に対して斜めに延長する。すなわち、連接されるボルト貫通孔２４の孔とナット２５の孔とが、別のセグメント２の切羽側側面９に対して垂直に延長するように設けられるのではなく、別のセグメント２の切羽側側面９に対して斜めに延長するように設けられる。尚、ボルト貫通部１５がセグメント２の切羽側側面９に設けられ、ボルト締結部１６がセグメント２の他側面１１に設けられた構成であればよいが、ボルト貫通部１５をセグメント２の切羽側側面９における一端２１に近い部位に形成し、ボルト締結部１６をセグメント２の他側面１１における切羽側端２１ａに近い部位に形成すれば、長さの短いボルト貫通部１５、ボルト締結部１６、ボルト３０により形成されるボルト継手３７によりセグメント間接合部３５を接合できるので、ボルト３０、ナット２５のコストを抑えることができるとともに施工性の良いセグメント２を得ることができる。ピン１７は、一端側が坑口側側面８よりセグメント２の内側に埋め込まれて、他端側が坑口側側面８より坑口側に突出する。ピン結合孔１８は、切羽側側面９よりセグメント２の内側に向けて坑口側方向に延長する孔である。   The segment 2 includes a bolt penetration part 15, a bolt fastening part 16, a pin 17, and a pin coupling hole 18. The bolt penetrating portion 15 includes a bolt box 22 formed on one end 21 side of the face side 9 in the vicinity of a corner formed by the face side 9 and one side 10 of the segment 2, a bottom surface 23 of the bolt box 22, and a segment 2 and a bolt through-hole 24 penetrating linearly across one side face 10. That is, the face side 9 is provided with a bolt box 22 that houses the head of the bolt 30 that passes through the bolt through hole 24. The bolt through hole 24 is not a through hole extending perpendicularly to the face side 8 with respect to the face side 9, but is inclined from the face side 9 toward the one side 10 and slanted toward the one side 10. It is a through hole extending to reach one side surface 10. The bolt fastening portion 16 includes a nut 25 and a nut 25 embedded inside the segment 2 with the face side 9 side of the other side 11 in the vicinity of the corner formed by the face side 9 and the other side 11 of the segment 2 as an inlet. Is formed by a storage hole 26 that is stored in a fixed state. That is, the bolt fastening portion 16 formed by the nut 25 having the bolt insertion inlet 27 on the other side surface 11 and provided inside the segment 2 is provided. When the other side surface 11 of the already fixed segment 2 and one side surface 10 of another segment 2 are attached to each other in the attached state, the outlet 24a of the bolt through hole 24 and the insertion inlet 27 of the nut 25 are connected to each other. The center line of the hole of the bolt through hole 24 coincides with the center line of the hole of the nut 25, and the center line 24Y of these holes extends obliquely with respect to the face side 9 of the other segment 2. That is, the hole of the bolt through hole 24 and the hole of the nut 25 that are connected are not provided so as to extend perpendicularly to the face side 9 of the other segment 2, but the face side of the other segment 2. It is provided so as to extend obliquely with respect to the side surface 9. The bolt penetrating part 15 may be provided on the face side 9 of the segment 2 and the bolt fastening part 16 may be provided on the other side face 11 of the segment 2, but the bolt penetrating part 15 may be provided on the face side of the segment 2. If it forms in the site | part near the one end 21 in the side surface 9, and the bolt fastening part 16 is formed in the site | part near the face side end 21a in the other side surface 11 of the segment 2, the bolt penetration part 15 with a short length, the bolt fastening part 16, Since the inter-segment joint portion 35 can be joined by the bolt joint 37 formed by the bolt 30, the cost of the bolt 30 and the nut 25 can be suppressed, and the segment 2 having good workability can be obtained. One end of the pin 17 is embedded in the segment 2 from the well side 8 and the other end projects from the well 8 to the well side. The pin coupling hole 18 is a hole extending from the face side 9 to the inside of the segment 2 in the wellhead direction.

ボルト貫通部１５の作成方法について説明する。ボルトボックス２２とボルト貫通孔２４とを成型するための図外の中子を図外のセグメント成形型の切羽側側面成形面と一側面成形面とに跨るように設置し、セグメント成形型内にコンクリートを流し込んで固めた後に中子を取り除くことで、セグメント２にボルト貫通部１５を形成できる。
ボルト締結部１６の作成方法について説明する。セグメント成形型の他側面成形面の外側から図外の貫通孔を経由させて図外のボルト体をセグメント成形型の内側の突出させ、セグメント成形型の内側に突出したボルト体にナット２５を締結した後にナット２５の斜めに形成された一端面２８（図２参照）で貫通孔を塞ぎ、この状態でボルト体をセグメント成形型の外面に固定して、セグメント成形型内にコンクリートを流し込んで固めた後に、ボルト体を取り除くことによって、セグメント２にナット２５（インサートナット）によるボルト締結部１６を形成できる。 A method for creating the bolt penetration portion 15 will be described. An unillustrated core for molding the bolt box 22 and the bolt through-hole 24 is installed so as to straddle the face side molding surface and the one side molding surface of the segment molding die not shown in the drawing. The bolt penetrating portion 15 can be formed in the segment 2 by removing the core after the concrete is poured and hardened.
A method for creating the bolt fastening portion 16 will be described. A bolt body (not shown) is projected from the outside of the other side molding surface of the segment mold to the inside of the segment mold, and a nut 25 is fastened to the bolt body protruding to the inside of the segment mold. After that, the through hole is closed with one end face 28 (see FIG. 2) formed obliquely of the nut 25. In this state, the bolt body is fixed to the outer surface of the segment mold, and the concrete is poured into the segment mold and hardened. After that, the bolt fastening part 16 by the nut 25 (insert nut) can be formed in the segment 2 by removing the bolt body.

セグメント２同士は、構築するトンネルの周方向に沿ってセグメント２同士を接合するセグメント間接合部３５と、トンネルの構築進行方向に沿ってセグメント２と既設の円筒壁体３の一部を構成するセグメント２とを接合するリング間接合部３６とにより接合される。セグメント間接合部３５は、接合する一対のセグメント２；２のうちの、一方のセグメント２のボルト貫通部１５と、他方のセグメント２のボルト締結部１６と、ボルト３０とにより形成され、ボルト３０がボルト貫通部１５に挿入されてボルト締結部１６に締結されることでセグメント２同士を接合する。つまり、セグメント間接合部３５は、ボルト３０とナット２５からなるボルト継手３７により接合される。リング間接合部３６は、既設の円筒壁体３の一部を構成するセグメント２の切羽側側面９のピン結合孔１８と、既設の円筒壁体３に接合するセグメント２の坑口側側面８のピン１７とにより形成され、ピン１７がピン結合孔１８内に結合されることでセグメント２と既設の円筒壁体３の一部を構成するセグメント２とを接合する。つまり、リング間接合部３６は、ピン１７とピン結合孔１８とからなるピン継手３８により接合される。   The segments 2 constitute an inter-segment joint 35 that joins the segments 2 along the circumferential direction of the tunnel to be constructed, and a part of the existing cylindrical wall 3 and the segment 2 along the construction progress direction of the tunnel. It is joined by an inter-ring joint 36 that joins the segment 2. Of the pair of segments 2; 2 to be joined, the inter-segment joining portion 35 is formed by the bolt penetration portion 15 of one segment 2, the bolt fastening portion 16 of the other segment 2, and the bolt 30. Is inserted into the bolt penetration part 15 and fastened to the bolt fastening part 16 to join the segments 2 together. That is, the inter-segment joint 35 is joined by the bolt joint 37 including the bolt 30 and the nut 25. The inter-ring joint 36 includes a pin coupling hole 18 on the face side 9 of the segment 2 that constitutes a part of the existing cylindrical wall 3, and a well-side side 8 of the segment 2 that joins the existing cylindrical wall 3. The pin 17 is joined to the pin coupling hole 18 so that the segment 2 and the segment 2 constituting a part of the existing cylindrical wall 3 are joined. In other words, the inter-ring joint 36 is joined by the pin joint 38 composed of the pin 17 and the pin coupling hole 18.

シールドトンネルのトンネル壁体５０の構築方法を説明する。まず、坑口において、構築するトンネルの周方向に沿ってセグメント２同士をセグメント間接合部３５により接合していって円筒壁体３を組立てる。その後、組立てた円筒壁体３の前面４でシールドマシン１の推進ジャッキ５の反力をとってシールドマシン１を推進させて地山１００を掘進してから円筒壁体３の前面４に新しい円筒壁体３を順次組立てていくことでシールドトンネルのトンネル壁体５０を構築する。   A construction method of the tunnel wall body 50 of the shield tunnel will be described. First, at the wellhead, the segments 2 are joined together by the inter-segment joint 35 along the circumferential direction of the tunnel to be constructed, and the cylindrical wall body 3 is assembled. After that, the reaction force of the propulsion jack 5 of the shield machine 1 is taken at the front surface 4 of the assembled cylindrical wall body 3 and the shield machine 1 is propelled to excavate the ground 100, and then a new cylinder is formed on the front surface 4 of the cylindrical wall body 3. By sequentially assembling the wall bodies 3, the tunnel wall body 50 of the shield tunnel is constructed.

図１に示すように、円筒壁体３の２つのセグメント２；２の切羽側側面９に１つのセグメント２Ａ（以下、先行セグメント２Ａという）を接合した後において、次のセグメント２Ｂ（以下、後行セグメント２Ｂという）を円筒壁体３の一部を構成する２つのセグメント２；２と既に円筒壁体３に接合された先行セグメント２Ａとに接合する場合、後行セグメント２Ｂの坑口側側面８の複数のピン１７を円筒壁体３の２つのセグメント２；２の切羽側側面９のそれぞれ対応する複数のピン結合孔１８内に結合した後に、先行セグメント２Ａの他側面１１のナット２５のボルト挿入入口２７と後行セグメント２Ｂの一側面１０のボルト貫通孔２４の出口２４ａとを合わせ、ボルト３０を切羽側側面９よりボルト貫通孔２４に挿入してボルト締結部１６のナット２５に締結する。以上により、後行セグメント２Ｂが、円筒壁体３の２つのセグメント２；２の切羽側側面９にピン継手３８により接合され、先行セグメント２Ａの他側面１１にボルト継手３７により接合される。即ち、相対するセグメント２の他側面１１とセグメント２の一側面１０とが、ボルト貫通部１５を経由してボルト締結部１６のナット２５に締結されたボルト３０により接合され、相対するセグメント２の切羽側側面９とセグメント２の坑口側側面８とが、ピン１７とピン結合孔１８との結合により接合される。このようにして、既設の円筒壁体３の円状の切羽側側面９にセグメント２を順次接合していくことで既設の円筒壁体３の切羽側にさらなる円筒壁体３を構築できる。   As shown in FIG. 1, after joining one segment 2A (hereinafter referred to as the preceding segment 2A) to the two facets 2; 2 of the cylindrical wall body 3, the next segment 2B (hereinafter referred to as the rear segment). When the row segment 2B) is joined to the two segments 2; 2 constituting a part of the cylindrical wall 3; and the preceding segment 2A already joined to the cylindrical wall 3, the well side 8 of the succeeding segment 2B After the plurality of pins 17 are coupled into the corresponding plurality of pin coupling holes 18 of the two face 2 side surfaces 2 of the cylindrical wall 3, the bolts of the nuts 25 on the other side surface 11 of the preceding segment 2 A The insertion inlet 27 and the outlet 24a of the bolt through hole 24 on the one side surface 10 of the succeeding segment 2B are aligned, and the bolt 30 is inserted into the bolt through hole 24 from the face side 9 to be a bolt fastening portion. Fastened to the 6 nut 25. Thus, the trailing segment 2B is joined to the face side 9 of the two segments 2; 2 of the cylindrical wall 3 by the pin joint 38 and joined to the other side 11 of the preceding segment 2A by the bolt joint 37. That is, the other side surface 11 of the opposite segment 2 and one side surface 10 of the segment 2 are joined by the bolt 30 fastened to the nut 25 of the bolt fastening portion 16 via the bolt penetration portion 15, and The face side 9 and the well side 8 of the segment 2 are joined together by a pin 17 and a pin coupling hole 18. In this manner, the additional cylindrical wall body 3 can be constructed on the face side of the existing cylindrical wall body 3 by sequentially joining the segments 2 to the circular face side face 9 of the existing cylindrical wall body 3.

本形態によれば、トンネル壁体５０の内面にボルトボックスを無くすことができるので、ボルトボックスを埋めるような煩雑な後作業を不要とでき、さらに、セグメント間接合部３５の継手（接合手段）としてボルト継手３７を用いたので例えばレール係合具と係合部材とからなるような特殊で高価な継手を用いる場合と比べて継手のコストを安くできる。従って、トンネル工事の工事費を削減できる。セグメントの切羽側側面９にボルトボックス２２を備え、ボルトボックス２２内にボルト３０の頭３１を収納できて、セグメント２の切羽側側面９より切羽側に突出する突出物を無くせるので、リング間接合部３６の接合作業をスムーズに行える。尚、セグメント２の切羽側側面９よりボルト３０の頭３１を突出させ、セグメント２の切羽側側面９にボルトボックス２２を設けずに、セグメント２の坑口側側面８にボルト３０の頭３１を収納する図外の収納孔を形成するようにしてもよい。この場合は、ボルト締結部１６に締結したボルト３０の安定のために特殊な座金を用いたり、セグメント２の坑口側側面８の収納孔内にボルト３０の頭を入れるための位置合わせ作業が必要となる。したがって、セグメントの切羽側側面９にボルトボックス２２を設けた場合の方が、部品数や作業手間などの観点からして好ましい。リング間接合部３６の継手（接合手段）としてピン継手３８を用いたので、継手のコストを安くでき、経済的に有利である。また、ピン１７をピン結合孔１８内に挿入して結合する作業も容易であり、リング間接合部３６の接合作業をスムーズに行える。   According to this embodiment, the bolt box can be eliminated from the inner surface of the tunnel wall body 50, so that a complicated post-operation such as filling the bolt box can be eliminated, and further, the joint (joining means) of the inter-segment joint 35 Since the bolt joint 37 is used, the cost of the joint can be reduced as compared with a case where a special and expensive joint such as a rail engaging tool and an engaging member is used. Therefore, the construction cost of tunnel construction can be reduced. A bolt box 22 is provided on the face side 9 of the segment, and the head 31 of the bolt 30 can be accommodated in the bolt box 22 so that the protrusion protruding from the face side 9 of the segment 2 to the face side can be eliminated. The joining operation of the joint portion 36 can be performed smoothly. The head 31 of the bolt 30 protrudes from the face side 9 of the segment 2, and the head 31 of the bolt 30 is stored in the well side 8 of the segment 2 without providing the bolt box 22 on the face side 9 of the segment 2. You may make it form the storage hole outside a figure to perform. In this case, it is necessary to use a special washer for the stability of the bolt 30 fastened to the bolt fastening portion 16 or to perform an alignment operation for putting the head of the bolt 30 into the storage hole of the side face 8 of the wellhead side of the segment 2. It becomes. Therefore, the case where the bolt box 22 is provided on the face side 9 of the segment is preferable from the viewpoints of the number of parts and labor. Since the pin joint 38 is used as a joint (joining means) for the inter-ring joint 36, the cost of the joint can be reduced, which is economically advantageous. Moreover, the operation | work which inserts the pin 17 in the pin coupling hole 18 and couple | bonds it is also easy, and the joining operation | work of the junction part 36 between rings can be performed smoothly.

最良の形態２
図４；図５は本発明の最良の形態２を示し、図４はセグメント同士の接合構造を示し、図５はリング間接合部の断面を示す。尚、図４；図５において、最良の形態１の図１〜３と同一部分は同一符号を付して詳細説明を省略する。 Best form 2
4 and FIG. 5 show the best mode 2 of the present invention, FIG. 4 shows a joint structure between segments, and FIG. 5 shows a cross section of a joint part between rings. 4 and FIG. 5, the same parts as those of FIGS. 1 to 3 of the best mode 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

図４に示すように、本形態のセグメント２は、上述のボルト貫通部１５とボルト締結部１６とは別に、ボルト貫通部４０とボルト締結部４１を備える。ボルト貫通部４０は、セグメント２の他側面１１と坑口側側面８とがなす角部の近傍における他側面１１の坑口側端４２に近い部位に形成されたボルトボックス４３と、ボルトボックス４３の底面４４とセグメント２の坑口側側面８とに跨って直線状に貫通するボルト貫通孔４５とにより形成される。つまり、ボルト貫通孔４５の他側面１１にはボルト貫通孔４５を貫通するボルト６０の頭６１を収納するボルトボックス４３が設けられる。ボルト貫通孔４５は、他側面１１に対して一側面１０の方向に垂直に延長する貫通孔ではなく、他側面１１から坑口側側面８の方向に傾斜し、坑口側側面８の方向に斜めに延長して坑口側側面８に到達する貫通孔である。ボルト締結部４１は、セグメント２の切羽側側面９側を入口としてセグメント２の内側に埋め込まれたナット５１とナット５１が固定状態に収納される収納孔５２とにより形成される。つまり、他側面１１にボルト挿入入口５３を有してセグメント２の内部に設けられたナット５１により形成されたボルト締結部４１を備える。即ち、別のボルト貫通部４０が、他側面１１と坑口側側面８とに跨って直線状に貫通されて形成され、別のボルト締結部４１が、切羽側側面９にボルト挿入入口５３を有してセグメント２の内部に設けられたナット５１により形成される。既に固定されたセグメント２の他側面１１と別のセグメント２の一側面１０とが互いに取付状態に付き合わされ、かつ、別のセグメント２の坑口側側面８と円筒壁体３の切羽側側面９とが互いに取付状態に付き合わされた場合において、ボルト貫通孔４５の出口４５ａとナット５１の挿入入口５３とが連接されて、ボルト貫通孔４５の孔の中心線とナット５１の孔の中心線とが一致し、これら孔の中心線４５Ｙが、別のセグメント２の他側面１１に対して斜めに延長する。すなわち、連接されるボルト貫通孔４５の孔とナット５１の孔とが、別のセグメント２の他側面１１に対して垂直に延長するように設けられるのではなく、別のセグメント２の切羽側側面９に対して斜めに延長するように設けられる。尚、ボルト貫通部４０がセグメント２の他側面１１に設けられ、ボルト締結部４１がセグメント２の切羽側側面９に設けられた構成であればよいが、ボルト貫通部４０をセグメント２の他側面１１における坑口側端４２に近い部位に形成すれば、長さの短いボルト貫通部４０、ボルト締結部４１、ボルト６０により形成されるボルト継手６５によりリング間接合部３６を接合できるので、ボルト６０、ナット５１のコストを抑えることができるとともに施工性の良いセグメント２を得ることができる。   As shown in FIG. 4, the segment 2 of this embodiment includes a bolt penetration part 40 and a bolt fastening part 41 separately from the bolt penetration part 15 and the bolt fastening part 16 described above. The bolt penetrating portion 40 includes a bolt box 43 formed in a portion near the well-end side end 42 of the other side surface 11 in the vicinity of the corner portion formed by the other side surface 11 of the segment 2 and the well-end side surface 8, and the bottom surface of the bolt box 43. 44 and the bolt through hole 45 penetrating linearly across the well side 8 of the segment 2. That is, the other side surface 11 of the bolt through hole 45 is provided with a bolt box 43 that houses the head 61 of the bolt 60 that passes through the bolt through hole 45. The bolt through hole 45 is not a through hole extending perpendicularly to the other side surface 11 in the direction of the one side surface 10, but is inclined from the other side surface 11 toward the wellhead side surface 8 and slanted toward the wellhead side surface 8. It is a through-hole that extends to reach the wellhead side surface 8. The bolt fastening portion 41 is formed by a nut 51 embedded inside the segment 2 with the face side 9 side of the segment 2 as an inlet and a storage hole 52 in which the nut 51 is stored in a fixed state. That is, a bolt fastening portion 41 formed by a nut 51 having a bolt insertion inlet 53 on the other side surface 11 and provided inside the segment 2 is provided. That is, another bolt penetrating portion 40 is formed to extend linearly across the other side surface 11 and the wellhead side surface 8, and another bolt fastening portion 41 has a bolt insertion inlet 53 on the face side surface 9. Thus, it is formed by a nut 51 provided inside the segment 2. The other side surface 11 of the already fixed segment 2 and one side surface 10 of the other segment 2 are attached to each other in the attached state, and the well side surface 8 of the other segment 2 and the face side surface 9 of the cylindrical wall body 3 Are attached to each other in the attached state, the outlet 45a of the bolt through hole 45 and the insertion inlet 53 of the nut 51 are connected to each other, and the center line of the hole of the bolt through hole 45 and the center line of the hole of the nut 51 are connected. These hole center lines 45 </ b> Y extend obliquely with respect to the other side surface 11 of another segment 2. That is, the hole of the bolt through hole 45 and the hole of the nut 51 that are connected are not provided so as to extend perpendicularly to the other side surface 11 of the other segment 2, but the face side surface of the other segment 2 9 is provided to extend obliquely with respect to 9. The bolt penetrating portion 40 may be provided on the other side surface 11 of the segment 2 and the bolt fastening portion 41 may be provided on the face side 9 of the segment 2. 11, the ring-to-ring joint 36 can be joined by the bolt joint 65 formed by the bolt penetration part 40, the bolt fastening part 41, and the bolt 60 having a short length. In addition, the cost of the nut 51 can be suppressed, and the segment 2 with good workability can be obtained.

ボルト貫通部４０は、上述したボルト貫通部１５の作成方法と同様の方法で形成できることは容易に理解できるであろう。ボルト締結部４１も、上述したボルト締結部１６の作成方法と同様の方法で形成できることは容易に理解できるであろう。   It will be easily understood that the bolt penetrating portion 40 can be formed by the same method as the method for forming the bolt penetrating portion 15 described above. It will be easily understood that the bolt fastening portion 41 can also be formed by a method similar to the method of creating the bolt fastening portion 16 described above.

図４；図５のように、ボルト貫通孔４５から挿入されてボルト締結部４１のナット５１に締結されたボルト６０により、セグメント２の切羽側側面９とセグメント２の坑口側側面８とが接合される。すなわち、相対するセグメント２の切羽側側面９とセグメント２の坑口側側面８とが、ボルト貫通孔４５を経由してボルト締結部４１のナット５１に締結されたボルト６０により接合される。つまり、リング間接合部３６が、別のボルト貫通部４０と別のボルト締結部４１とボルト６０とで形成されるボルト継手６５とピン継手３８とにより接合されることが容易に理解できるであろう。   4; As shown in FIG. 5, the face 60 side face 9 of the segment 2 and the well side face 8 of the segment 2 are joined by the bolt 60 inserted from the bolt through hole 45 and fastened to the nut 51 of the bolt fastening portion 41. Is done. That is, the face side 9 of the segment 2 and the well side 8 of the segment 2 are joined by the bolt 60 fastened to the nut 51 of the bolt fastening portion 41 via the bolt through hole 45. That is, it can be easily understood that the inter-ring joint 36 is joined by the bolt joint 65 and the pin joint 38 formed by another bolt penetration part 40, another bolt fastening part 41, and the bolt 60. Let's go.

本形態によれば、形態１による効果の他に、ボルト継手６５によりリング間接合部３６の接合を強固にできる。また、セグメント２の他側面１１より突出する突出物を無くせ、セグメント間接合部の接合作業をスムーズに行える。リング間接合部３６の接合に、ピン継手３８も用いたので、リング間接合部３６の接合作業をスムーズにできる。リング間接合部３６の接合が、ボルト継手６５とピン継手３８とにより接合されることで、リング間接合部３６の接合をより強固にできる。   According to the present embodiment, in addition to the effect of the first embodiment, the joint of the inter-ring joint 36 can be strengthened by the bolt joint 65. Moreover, the protrusion which protrudes from the other side surface 11 of the segment 2 can be eliminated, and the joining operation | work of the junction part between segments can be performed smoothly. Since the pin joint 38 is also used for joining the inter-ring joining portion 36, the joining work of the inter-ring joining portion 36 can be performed smoothly. By joining the joint part 36 between rings by the bolt joint 65 and the pin joint 38, the joint part 36 between rings can be joined more firmly.

図６に示すように、ボルト継手３７やボルト継手６５を、セグメント２の厚さ方向に沿って複数設けるようにしてもよい。このようにすることで、施工時におけるセグメント２；２間の目違い（リング間接合部３６においてセグメント２の内面６とセグメント２の内面との位置がずれることで段差を生じること）や目開き（セグメント間接合部３５においてセグメント２の一側面１０とセグメント２の他側面１１の間に隙間を生じること）を、より効果的に防止できる。   As shown in FIG. 6, a plurality of bolt joints 37 and bolt joints 65 may be provided along the thickness direction of the segment 2. By doing in this way, the difference between the segments 2 and 2 at the time of construction (a step is produced by the displacement of the position of the inner surface 6 of the segment 2 and the inner surface of the segment 2 at the inter-ring joint 36) and the mesh opening (It is possible to more effectively prevent a gap between the one side surface 10 of the segment 2 and the other side surface 11 of the segment 2 in the inter-segment bonding portion 35).

セグメント同士の接合構造を示す斜視図（最良の形態１）。The perspective view which shows the joining structure of segments (the best form 1). セグメント間接合部の断面図（最良の形態１）。Sectional drawing of the junction part between segments (best form 1). シールドトンネルの構築方法を示す断面図（最良の形態１）。Sectional drawing which shows the construction method of a shield tunnel (best form 1). セグメント同士の接合構造を示す斜視図（最良の形態２）。The perspective view which shows the joining structure of segments (the best form 2). リング間接合部の断面図（最良の形態２）。Sectional drawing of the junction part between rings (best form 2). セグメント同士の接合構造の他例を示す図。The figure which shows the other example of the junction structure of segments.

符号の説明Explanation of symbols

１ シールドマシン、２ セグメント、６ 内面、７ 外面、８ 坑口側側面、
９ 切羽側側面、１０ 一側面、１１ 他側面、１５ ボルト貫通部、
１６ ボルト締結部、２２ ボルトボックス、２４ ボルト貫通孔、２５ ナット、
２７ ボルト挿入入口、３０ ボルト、３７ ボルト継手、３８ ピン継手、
４０ ボルト貫通部（別のボルト貫通部）、４１ ボルト締結部（別のボルト貫通部）、４３ ボルトボックス、４５ 貫通孔、５０ トンネル壁体、５１ ナット、
５３ ボルト挿入入口、６０ ボルト、６５ ボルト継手。 1 Shield machine, 2 segments, 6 inner surface, 7 outer surface, 8 well side surface,
9 Face side, 10 One side, 11 Other side, 15 Bolt penetration,
16 bolt fastening part, 22 bolt box, 24 bolt through hole, 25 nut,
27 bolt insertion inlet, 30 bolt, 37 bolt joint, 38 pin joint,
40 bolt penetration part (another bolt penetration part), 41 bolt fastening part (another bolt penetration part), 43 bolt box, 45 through hole, 50 tunnel wall body, 51 nut,
53 bolt insertion inlet, 60 bolt, 65 bolt joint.

Claims (4)

トンネル壁体を形成するセグメントにおいて、トンネル壁体の内面を形成する内面とトンネル壁体の外面を形成する外面と内面と外面とを繋ぐ側面とボルト貫通部とボルト締結部とピン結合孔とピンとを備え、側面は、切羽側に向けられる切羽側側面と、坑口側に向けられる坑口側側面と、切羽側側面の一端と坑口側側面の一端とを繋ぐ一側面と、切羽側側面の他端と坑口側側面の他端とを繋ぐ他側面とで形成され、ボルト貫通部は、切羽側側面と一側面とに跨って直線状に貫通されて形成され、ボルト締結部は、他側面にボルト挿入入口を有してセグメントの内部に設けられたナットにより形成され、ピンは、一端側が坑口側側面よりセグメントの内側に埋め込まれて、他端側が坑口側側面より坑口側に突出するよう形成され、ピン結合孔は、切羽側側面よりセグメントの内側に向けて坑口側方向に延長する孔により形成され、ボルト貫通部及びボルト締結部は、セグメントの厚さ方向に沿って複数設けられたことを特徴とするセグメント。 In the segment forming the tunnel wall body, the inner surface forming the inner surface of the tunnel wall body, the outer surface forming the outer surface of the tunnel wall body, the side surface connecting the inner surface and the outer surface, the bolt penetration portion, the bolt fastening portion, the pin coupling hole, and the pin the provided, sides, and the working face-side side surface which is directed to the working face side, the wellhead side surface which is directed to the wellhead side, and one side surface connecting the one ends and the wellhead side surface of the working face side surface, the other end of the tunnel face side surface And the other side connecting the other end of the well side, the bolt penetrating part is formed by penetrating linearly across the face side and one side, and the bolt fastening part is bolted to the other side The pin is formed by a nut provided inside the segment with an insertion entrance, and the pin is formed so that one end side is embedded inside the segment from the side surface of the wellhead side and the other end side protrudes from the side surface of the wellhead side to the wellhead side. , Pin coupling hole , Is formed by pores that extend wellhead side direction toward the inside of the segment from the working face side surface, bolt through portion and the bolt fastening portions, the segment being characterized in that provided in plural along the thickness direction of the segment. 上記ボルト貫通部とは別のボルト貫通部と上記ボルト締結部とは別のボルト締結部とを備え、別のボルト貫通部が、他側面と坑口側側面とに跨って直線状に貫通されて形成され、別のボルト締結部が、切羽側側面にボルト挿入入口を有してセグメントの内部に設けられたナットにより形成され、別のボルト貫通部及び別のボルト締結部は、セグメントの厚さ方向に沿って複数設けられたことを特徴とする請求項１に記載のセグメント。 A bolt penetration part different from the bolt penetration part and a bolt fastening part different from the bolt fastening part are provided, and the other bolt penetration part is linearly penetrated across the other side surface and the well side surface. And another bolt fastening portion is formed by a nut provided inside the segment with a bolt insertion inlet on the side face of the face , and the other bolt penetration portion and the other bolt fastening portion are formed by the thickness of the segment. The segment according to claim 1, wherein a plurality of segments are provided along the direction . 請求項１に記載のセグメントを用いたセグメント接合構造であって、トンネルの構築進行方向に沿って相対する一方のセグメントの坑口側側面より突出するピンと他方のセグメントの切羽側側面に形成されたピン結合孔とが結合され、トンネルの周方向に沿って相対する一方のセグメントの一側面と他方のセグメントの他側面とが、ボルト貫通部を経由してボルト締結部のナットに締結されたボルトにより接合されたことを特徴とするセグメント接合構造。 It is a segment joining structure using the segment of Claim 1 , Comprising: The pin which protrudes from the well side side surface of one segment which opposes the construction progress direction of a tunnel, and the pin formed in the face side surface of the other segment One side surface of one segment and the other side surface of the other segment facing each other along the circumferential direction of the tunnel are joined by a bolt fastened to a nut of a bolt fastening portion via a bolt penetration portion. Segment bonded structure characterized by being bonded. 請求項２に記載のセグメントを用いたセグメント接合構造であって、トンネルの構築進行方向に沿って相対する一方のセグメントの坑口側側面より突出するピンと他方のセグメントの切羽側側面に形成されたピン結合孔とが結合され、トンネルの周方向に沿って相対する一方のセグメントの一側面と他方のセグメントの他側面とが、ボルト貫通部を経由してボルト締結部のナットに締結されたボルトにより接合され、トンネルの周方向に沿って相対する一方のセグメントの坑口側側面と他方のセグメントの切羽側側面とが、別のボルト貫通部を経由して別のボルト締結部のナットに締結されたボルトにより接合されたことを特徴とするセグメント接合構造。 A segment joint structure using the segment according to claim 2 , wherein the pin protrudes from the well-side side surface of one segment facing the construction progress direction of the tunnel and the pin formed on the face side surface of the other segment One side surface of one segment and the other side surface of the other segment facing each other along the circumferential direction of the tunnel are joined by a bolt fastened to a nut of a bolt fastening portion via a bolt penetration portion. are joined, and the working face-side side surface of the wellhead side surface and the other segment of one segment relative to the circumferential direction of the tunnel, which is fastened to another bolt fastening portion of the nut via another bolt penetrating portion A segment joint structure characterized by being joined by bolts .
JP2005143178A 2005-05-16 2005-05-16 Segment and segment joint structure Active JP4494285B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005143178A JP4494285B2 (en) 2005-05-16 2005-05-16 Segment and segment joint structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005143178A JP4494285B2 (en) 2005-05-16 2005-05-16 Segment and segment joint structure

Publications (2)

Publication Number Publication Date
JP2006316590A JP2006316590A (en) 2006-11-24
JP4494285B2 true JP4494285B2 (en) 2010-06-30

Family

ID=37537502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005143178A Active JP4494285B2 (en) 2005-05-16 2005-05-16 Segment and segment joint structure

Country Status (1)

Country Link
JP (1) JP4494285B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104632232A (en) * 2015-02-04 2015-05-20 北京市政建设集团有限责任公司 Pipeline segment dismantling method for expanding and excavating large-diameter shield tunnel and building subway station

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013102239A1 (en) 2013-03-06 2014-09-11 Universität Zu Köln Carbosilane-containing fire-extinguishing foam
JP7482820B2 (en) 2021-03-31 2024-05-14 株式会社Ｉｈｉ建材工業 Segment assembly structure
CN114810134A (en) * 2022-03-29 2022-07-29 中铁第四勘察设计院集团有限公司 Connecting structure of shield segments of earthquake active fault zone and implementation method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06346694A (en) * 1993-06-08 1994-12-20 Jio Star Kk Structure of joint for concrete segment
JPH0813988A (en) * 1994-07-01 1996-01-16 Nippon Koatsu Concrete Kk Connecting structure for tunnel liner
JPH1082290A (en) * 1996-09-09 1998-03-31 Okumura Corp Rectangular concrete segment and joining structure thereof
JPH1082292A (en) * 1996-09-09 1998-03-31 Okumura Corp Segment
JP2001182492A (en) * 1999-12-28 2001-07-06 Kajima Corp Coupling part structure of segment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06346694A (en) * 1993-06-08 1994-12-20 Jio Star Kk Structure of joint for concrete segment
JPH0813988A (en) * 1994-07-01 1996-01-16 Nippon Koatsu Concrete Kk Connecting structure for tunnel liner
JPH1082290A (en) * 1996-09-09 1998-03-31 Okumura Corp Rectangular concrete segment and joining structure thereof
JPH1082292A (en) * 1996-09-09 1998-03-31 Okumura Corp Segment
JP2001182492A (en) * 1999-12-28 2001-07-06 Kajima Corp Coupling part structure of segment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104632232A (en) * 2015-02-04 2015-05-20 北京市政建设集团有限责任公司 Pipeline segment dismantling method for expanding and excavating large-diameter shield tunnel and building subway station
CN104632232B (en) * 2015-02-04 2016-12-28 北京市政建设集团有限责任公司 A kind of large diameter shield tunnel that digs builds the section of jurisdiction method for dismounting of subway station

Also Published As

Publication number Publication date
JP2006316590A (en) 2006-11-24

Similar Documents

Publication Publication Date Title
JP4494285B2 (en) Segment and segment joint structure
JPH10231694A (en) Structure of coupling
JP5327111B2 (en) Segment and tunnel construction method
JP2001032688A (en) Shield segment
JP2003343196A (en) Coupling structure for steel segment with pre-filled concrete
JP2002129552A (en) Spacer for cage
JP3450910B2 (en) Segment fitting
JPH10115197A (en) Joint structure of steel material and reinforcing plate used therein
JPH0681593A (en) Segment joint
JPH0523680Y2 (en)
JP2561363Y2 (en) segment
JP2569379B2 (en) Tortoiseshell segment
JP2601086B2 (en) segment
JPH10205288A (en) Joint construction of segment
JP2008063845A (en) Method and structure for joining precast reinforced concrete beam members to each other
JP2000002091A (en) Junction structure of segment
JPH06280491A (en) Structure of joint of segment
JP2002070489A (en) Segment and its joint structure
JP2001220999A (en) Shield tunnel lining body
JPH1061392A (en) Joint structure of segment
JP6534303B2 (en) Junction structure of segments
JP2002061497A (en) Curved slab for arch tunnel and its joint structure
JP4324135B2 (en) Joint fitting and connection structure of connected member using joint fitting
JP2000230394A (en) Joint structure for concrete segment
JP2005264511A (en) Connection structure of segment for tunnel, and segment for tunnel

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080109

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20091225

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100105

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100226

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100406

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100407

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130416

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130416

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140416

Year of fee payment: 4

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350