JP2009257043A - Concrete filling method of composite segment - Google Patents

Concrete filling method of composite segment Download PDF

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JP2009257043A
JP2009257043A JP2008110248A JP2008110248A JP2009257043A JP 2009257043 A JP2009257043 A JP 2009257043A JP 2008110248 A JP2008110248 A JP 2008110248A JP 2008110248 A JP2008110248 A JP 2008110248A JP 2009257043 A JP2009257043 A JP 2009257043A
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concrete
surface side
segment
air vent
pair
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JP5147516B2 (en
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Nobuo Hayashi
伸郎 林
Kaoru Matsuoka
馨 松岡
Tomohiro Ichikawa
智洋 市川
Takeshi Masubuchi
健 鱒渕
Osamu Sudo
修 須藤
Takashi Tanaka
孝 田中
Katsuyoshi Nakanishi
克佳 中西
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JFE Steel Corp
JFE Metal Products and Engineering Inc
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JFE Steel Corp
JFE Metal Products and Engineering Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a concrete filling method of a composite segment capable of surely filling concrete up to all the inside corners, without leaking the concrete from an air bleeding hole, in a hexahedral steel shell segment. <P>SOLUTION: This invention has the hexahedral steel shell segment 1 composed of a pair of axial directional walls 2a and 2b, skin plates 3a and 3b on the inner surface side and the outer surface side and a pair of peripheral directional walls 4a and 4b, A hole sealing material 8 covering the air bleeding hole 6 and having gas permeability and water communication performance, is adhered to the outer surface side or the inner surface side of the air bleeding hole 6 arranged on the inner surface side skin plate 3a side of the pair of peripheral directional walls 4a and 4b, and the concrete is injected into the hexahedral steel shell segment 1 from a hole arranged on one peripheral directional wall 4a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、合成セグメントのコンクリート充填方法に係り、より詳しくは、六面全部が鋼材によって覆れた六面鋼殻セグメントの内部へのコンクリートの充填方法に関するものである。   The present invention relates to a method for filling concrete in a composite segment, and more particularly to a method for filling concrete into a hexagonal steel shell segment in which all six sides are covered with a steel material.

六面鋼殻セグメント内にコンクリートを充填する場合、閉塞された内部の隅々まで密実にコンクリートを充填するためには、内部の空気を排出するための空気抜き孔を設ける必要があるが、充填の最終段階で、この空気抜き孔から空気と共にコンクリートあるいはモルタル（以下、両者を合わせてコンクリートという）が漏れ出してしまうという問題があった。
六面鋼殻セグメント内から空気が確実に抜けるためには十分な時間が必要であり、そのためコンクリートの漏れ量も多くなるが、有効な対策がなく、また、漏れたコンクリートの清掃も面倒であった。 When filling the hexagonal steel shell segment with concrete, it is necessary to provide an air vent hole for exhausting the air in order to fill the concrete tightly to every corner of the closed interior. At the final stage, there was a problem that concrete or mortar (hereinafter referred to as “concrete” in combination) leaks out from the air vent hole together with air.
Sufficient time is required to ensure that air can escape from the hexagonal steel shell segment, which increases the amount of leakage of concrete, but there are no effective measures, and cleaning of leaked concrete is troublesome. It was.

従来の空気抜き手段を備えたコンクリートセグメントの製作方法に、内周面型枠板と外周面型枠板と一対の周方向端面型枠板と一対の軸方向端面型枠板とからなり、かつ外周面型枠板がその周方向中央部分に開口形成されたコンクリート投入スリットを備えるとともに、外周面型枠板の内面には透気性及び透水性を有するシート部材が取り付けられた製作型枠を、投入スリットが上方に向かって開口するように設置し、この投入スリットから製作型枠の内部に高流動コンクリートを投入充填してこれを硬化させるようにしたものがある。   A conventional method for producing a concrete segment equipped with air venting means includes an inner peripheral surface mold frame plate, an outer peripheral surface mold frame plate, a pair of circumferential end surface mold frame plates, and a pair of axial end surface mold frame plates. The surface mold plate is provided with a concrete input slit formed in the central portion in the circumferential direction, and a production mold frame having a gas permeable and water permeable sheet member attached to the inner surface of the outer peripheral surface mold plate is input. There is one in which the slit is installed so as to open upward, and the high-fluidity concrete is charged and filled into the inside of the production form from this charging slit to be cured.

特開平１０−１９３３１０号公報（第４−５頁、図１−３）JP-A-10-193310 (page 4-5, FIG. 1-3)

特許文献１の発明は、コンクリートセグメントの製作型枠に関するもので、空気抜き手段を備えているが、コンクリートが硬化すると解体されるものであり、仮に型枠を六面鋼殻セグメントとみたてて、内部へコンクリートを充填し、合成セグメントを製造しようとしても、その外周面型枠の周方向中央部分には、コンクリートを投入する大きなスリット、及び多数の空気抜き用孔が設けられているため強度的に問題があり、六面鋼殻セグメントの内部へのコンクリートの充填には適用することができない。   The invention of Patent Document 1 relates to a production form for a concrete segment, and is provided with air venting means, but is dismantled when the concrete hardens. If the form is regarded as a hexagonal steel shell segment, Even when trying to manufacture a composite segment by filling concrete inside, there is a large slit to put concrete and a lot of air vent holes in the central part of the outer peripheral surface formwork in terms of strength. There is a problem and it cannot be applied to filling concrete inside the hexagonal steel shell segment.

本発明は、上記の課題を解決するためになされたもので、六面鋼殻セグメントにおいて、空気抜き孔からコンクリートが漏洩することがなく、内部の隅々までコンクリートを確実に充填することのできる合成セグメントのコンクリート充填方法を提供することを目的としたものである。   The present invention has been made to solve the above problems, and in the hexagonal steel shell segment, the concrete can be reliably filled to every corner of the interior without leakage of the concrete from the air vent hole. It aims at providing the concrete filling method of a segment.

本発明に係る合成セグメントのコンクリート充填方法は、一対の軸方向壁、内面側及び外面側スキンプレート、一対の周方向壁からなる六面鋼殻セグメントを有し、前記一対の周方向壁の内面側スキンプレート側に設けた空気抜き孔の外面側又は内面側に、該空気抜き穴を覆って通気性及び通水性を有する封孔材を接着し、前記一方の周方向壁に設けた穴から前記六面鋼殻セグメント内にコンクリートを注入するようにしたものである。   The synthetic segment concrete filling method according to the present invention includes a pair of axial walls, an inner surface side and an outer surface side skin plate, a hexahedral steel shell segment composed of a pair of circumferential walls, and an inner surface of the pair of circumferential walls. On the outer surface side or inner surface side of the air vent hole provided on the side skin plate side, a sealing material that covers the air vent hole and has air permeability and water permeability is adhered, and from the hole provided in the one circumferential wall, the six Concrete is poured into the face shell segment.

上記の空気抜き孔を、前記一対の周方向壁にそれぞれ１個又は複数個設けた。
また、上記の空気抜き孔を、前記一対の周方向壁の前記内面側スキンプレート側の両隅角部近傍及び軸方向のほぼ中央部にそれぞれ設けた。 One or a plurality of the air vent holes are provided in each of the pair of circumferential walls.
Further, the air vent holes are provided in the vicinity of both corners on the inner skin side of the pair of circumferential walls and in the substantially central part in the axial direction.

さらに、上記の空気抜き孔を、コンクリートの最大骨材の寸法とほぼ等しいか又はこれより大きく形成した。
また、上記の封孔材を、合成繊維からなる織布で形成した。 Furthermore, the air vent hole was formed to be approximately equal to or larger than the size of the largest aggregate of concrete.
Moreover, said sealing material was formed with the woven fabric which consists of synthetic fibers.

本発明によれば、六面鋼殻セグメントの周方向壁の上部に設けた空気抜き孔の外面側又は内面側に、通気性、通水性を有する織布製の封孔材を接着したので、内部にコンクリートを充填すると、空気及び水の一部は空気抜き孔から封孔材を介して外部に排出されるが、コンクリートは封孔材に阻止されて外部に漏洩することはない。これにより、六面鋼殻セグメントの内部の隅々まで確実にコンクリートを充填することができる。   According to the present invention, a sealing material made of woven fabric having air permeability and water permeability is bonded to the outer surface side or inner surface side of the air vent hole provided in the upper part of the circumferential wall of the hexagonal steel shell segment. When concrete is filled in, air and a part of water are discharged from the air vent hole through the sealing material, but the concrete is blocked by the sealing material and does not leak to the outside. Thereby, concrete can be reliably filled to every corner inside the hexagonal steel shell segment.

［実施の形態１］
図１は本発明の実施の形態１に係る一部を断面で示した合成セグメント（六面鋼殻セグメント）の斜視図、図２は図１の右側面図及びその中央断面図である。
この六面鋼殻セグメント１（以下、単にセグメントという）は、軸方向に所定の間隔で配置された軸方向壁を構成する円弧状の一対の鋼板２ａ，２ｂと、鋼板２ａ，２ｂの上下にそれぞれ溶接接合された内周側スキンプレート３ａ及び外周側スキンプレート３ｂと、周方向の両端部において、鋼板２ａ，２ｂ及び内外周側スキンプレート３ａ，３ｂに溶接接合された周方向壁を構成する継手板４ａ，４ｂとにより六面が閉塞され、内部に中空部７が形成されている。 [Embodiment 1]
FIG. 1 is a perspective view of a synthetic segment (hexagonal steel shell segment) partially showing a cross section according to Embodiment 1 of the present invention, and FIG. 2 is a right side view of FIG. 1 and a central sectional view thereof.
This hexagonal steel shell segment 1 (hereinafter simply referred to as a segment) is formed on the upper and lower sides of a pair of arcuate steel plates 2a, 2b that constitute axial walls arranged at predetermined intervals in the axial direction, and the steel plates 2a, 2b. The inner peripheral skin plate 3a and the outer peripheral skin plate 3b that are welded to each other, and the circumferential walls welded to the steel plates 2a and 2b and the inner and outer peripheral skin plates 3a and 3b at both ends in the circumferential direction are configured. Six surfaces are closed by the joint plates 4a and 4b, and a hollow portion 7 is formed inside.

５は一方の継手板４ａに設けた、内部にコンクリートを注入するための穴であるコンクリート注入管１０（脱着式）の接続口、６は円弧状のセグメント１の最上部となる継手板４ａ，４ｂの上部、すなわち、内面側スキンプレート３ａ側の軸方向の両隅角部近傍、及び軸方向のほぼ中央部に設けた空気抜き孔である。   5 is a connection port of a concrete injection pipe 10 (removable type) provided in one joint plate 4a, which is a hole for injecting concrete into the inside, and 6 is a joint plate 4a serving as the uppermost portion of the arc-shaped segment 1. These are air vent holes provided in the upper part of 4b, that is, in the vicinity of both corners in the axial direction on the inner surface side skin plate 3a side and in the substantially central part in the axial direction.

この空気抜き孔６は、図には継手板４ａ，４ｂにそれぞれ３個設けた場合を示してあるが、それぞれ１個又は２個以上であってもよく、空気が溜り易い上側角部に設けることが望ましい。また、その大きさは、内部に充填するコンクリートの最大骨材の寸法とほぼ等しいか、またはこれより若干大きく、実施例では、最大骨材の外径が２０ｍｍの場合、空気抜き孔６の径を２０〜３０ｍｍとした。なお、空気抜き孔６の数が少ない場合は、その径を大きくしてもよい。   Although three air vent holes 6 are provided in each of the joint plates 4a and 4b in the drawing, one or two or more air vent holes 6 may be provided, and the air vent holes 6 may be provided in the upper corner portion where air easily collects. Is desirable. Further, the size thereof is approximately equal to or slightly larger than the size of the maximum aggregate of the concrete to be filled therein. In the embodiment, when the outer diameter of the maximum aggregate is 20 mm, the diameter of the air vent hole 6 is set. It was 20-30 mm. If the number of air vent holes 6 is small, the diameter may be increased.

８は各空気抜き孔６の外面側を覆って、接着剤により継手板４ａ，４ｂに貼り着けた通気性、通水性を有する封孔材で、例えば、ポリエステル、ナイロン、ビニロン、テトロン等の化学繊維からなり、コンクリートの注入圧力で破断しない耐圧力を有する織布で、空気や水は通すが、コンクリートの成分は通り抜けない大きさの目を備えている。なお、上記の説明では、封孔材８を継手板４ａ，４ｂの外面側に設けた場合を示したが、内面側に貼り着けてもよい。   8 is an air-permeable and water-permeable sealing material that covers the outer surface side of each air vent hole 6 and is attached to the joint plates 4a and 4b with an adhesive. For example, a chemical fiber such as polyester, nylon, vinylon, or tetron It is a woven fabric that has a pressure resistance that does not break with the pouring pressure of concrete, and has an eye size that allows air and water to pass through but does not allow the components of the concrete to pass through. In the above description, the case where the sealing material 8 is provided on the outer surface side of the joint plates 4a and 4b is shown, but it may be attached to the inner surface side.

実施例では、封孔材８にポリエステル繊維からなる織布を用いた。この織布の一般特性は、比重：１．３８、引張強度：１０ＭＰａ以上、伸度：１５％前後で、ｐＨ４〜１０の酸・アルカリに対して十分な耐久性を有するものである。   In the example, a woven fabric made of polyester fiber was used for the sealing material 8. The general characteristics of this woven fabric are that the specific gravity is 1.38, the tensile strength is 10 MPa or more, the elongation is about 15%, and it has sufficient durability against acids and alkalis of pH 4-10.

次に、上記のように構成した本実施の形態に係るセグメントへのコンクリートの充填作用を、図３により説明する。
図３（ａ）に示すように、コンクリート注入管１０からコンクリート１１がセグメント１の中空部７内に圧送されると、コンクリート１１の充填量の増加にしたがって、中空部７内の空気１２は空気抜き孔６から封孔材８を経て外部に排出される。なお、コンクリート１１として高流動コンクリートを用いれば、コンクリート１１が中空部７内全体に行き渡り易くなり、充填効率が高くなる。 Next, the filling operation of the concrete into the segment according to the present embodiment configured as described above will be described with reference to FIG.
As shown in FIG. 3A, when the concrete 11 is pumped from the concrete injection pipe 10 into the hollow portion 7 of the segment 1, the air 12 in the hollow portion 7 is vented as the filling amount of the concrete 11 increases. It is discharged from the hole 6 through the sealing material 8 to the outside. In addition, if high fluidity concrete is used as the concrete 11, the concrete 11 will be easy to spread throughout the hollow part 7, and filling efficiency will become high.

コンクリート１１の充填が進むと、図３（ｂ）に示すように、中空部７内の空気１２は、セグメント１の高所、したがって継手板４ａ，４ｂの上部（内面側スキンプレート３ａ側）近傍に集まり、空気抜き孔６から外部へ排出される。空気１２の排出が進むと中空部７内にコンクリート１１が充満し、その一部は、空気抜き孔６から外部へ押し出されようとする。しかし、コンクリート１１は、空気抜き孔６の外面側に設けた封孔材８によって阻止され、空気１２及びコンクリート１１に含まれる水分の一部のみが封孔材８からにじみ出て外部に排出される。   When the filling of the concrete 11 progresses, as shown in FIG. 3 (b), the air 12 in the hollow portion 7 is located at the height of the segment 1, and therefore near the upper part of the joint plates 4a and 4b (inner surface side skin plate 3a side) And are discharged from the air vent hole 6 to the outside. When the discharge of the air 12 proceeds, the concrete 11 is filled in the hollow portion 7, and a part thereof is about to be pushed out from the air vent hole 6. However, the concrete 11 is blocked by the sealing material 8 provided on the outer surface side of the air vent hole 6, and only a part of the moisture contained in the air 12 and the concrete 11 oozes out from the sealing material 8 and is discharged to the outside.

中空部７内の空気１２がすべて排出されると、図３（ｃ）に示すように、セグメント１の中空部７の隅々までコンクリート１１が確実に充填されて、六面鋼殻セグメントが完成する。なお、継手板４ａ，４ｂに接着した封孔材８は貼り着けたままでもよい。   When all the air 12 in the hollow portion 7 is exhausted, the concrete 11 is surely filled to every corner of the hollow portion 7 of the segment 1 as shown in FIG. To do. The sealing material 8 adhered to the joint plates 4a and 4b may remain attached.

本実施の形態によれば、セグメント１の継手板４ａ，４ｂの高所（内面側スキンプレート３ａ側）に空気抜き孔６を設け、その外面側又は内面側に、通気性、通水性を有する織布からなる封孔材８を接着したので、セグメント１内にコンクリート１１を充填するにあたり、内部の空気１２を空気抜き孔６から確実に排出し、かつコンクリート１１の漏洩を阻止することができるため、セグメント１の内部の隅々まで確実にコンクリート１１を充填することができる。
また、空気抜き孔６を最大骨材の寸法とほぼ等しいか又はこれより大きく形成することで、骨材が空気抜き孔６に詰って塞ぐことがないので、空気を排出し、余分な水を脱水することができる。
さらに、空気の排出と共に、コンクリート１１に含まれた余分な水が封孔材８から外部ににじみ出て脱水されるので、コンクリート１１の強度を高めることができる。 According to the present embodiment, the air vent hole 6 is provided at the height (inner surface side skin plate 3a side) of the joint plates 4a and 4b of the segment 1, and the woven fabric having air permeability and water permeability on the outer surface side or inner surface side thereof. Since the sealing material 8 made of cloth is adhered, when filling the concrete 11 into the segment 1, the internal air 12 can be surely discharged from the air vent hole 6, and leakage of the concrete 11 can be prevented. The concrete 11 can be reliably filled to every corner of the segment 1.
Moreover, since the air vent hole 6 is formed to be approximately equal to or larger than the size of the largest aggregate, the aggregate does not clog the air vent hole 6 so that the air is discharged and excess water is dehydrated. be able to.
Further, as the air is discharged, excess water contained in the concrete 11 oozes out from the sealing material 8 to be dehydrated, so that the strength of the concrete 11 can be increased.

［実施の形態２］
図４は本発明の実施の形態２に係るセグメントの一部を断面で示した斜視図、図５は図４のＡ−Ａ断面図及び右側面図である。なお、実施の形態１と同じ部分にはこれと同じ符号を付し、説明を省略する。
本実施の形態は、実施の形態１に係るセグメント１の軸方向壁を、鋼板２ａ，２ｂに代えて、角形の鋼管９ａ，９ｂで構成したもので、その他の構成は、実施の形態１の場合とほぼ同様である。 [Embodiment 2]
FIG. 4 is a perspective view showing a part of a segment according to the second embodiment of the present invention in cross section, and FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
In the present embodiment, the axial wall of the segment 1 according to the first embodiment is configured by square steel pipes 9a and 9b instead of the steel plates 2a and 2b, and other configurations are the same as those of the first embodiment. It is almost the same as the case.

本実施の形態においては、鋼管９ａ，９ｂの間に形成された領域は中空部７となっており、また、鋼管９ａ，９ｂ内も中空部７ａとなっている。そのため、中空部７と鋼管９ａ，９ｂの両端部に設けた継手板４ａ，４ｂの内面側スキンプレート３ａ側には、中空部７に対応して１個又は複数個（図には２個の場合が示してある）の空気抜き孔６が設けられており、また、鋼管９ａ，９ｂの中空部７ａに対応して１個又は複数個（図には１個の場合が示してある）の空気抜き孔６ａが設けられている。そして、継手板４ａ，４ｂの外面又は内面には、これら空気抜き孔６，６ａを覆う封孔材８が接着されている。
また、一方の継手板４ａには、中空部７に対応してコンクリート注入管の接続口５が設けられ、鋼管９ａ，９ｂの中空部７ａに対応してそれぞれコンクリート注入管の接続口５ａが設けられている。 In this Embodiment, the area | region formed between the steel pipes 9a and 9b becomes the hollow part 7, and the inside of the steel pipes 9a and 9b is also the hollow part 7a. Therefore, one or a plurality of (in the drawing, two in the figure) are provided on the inner surface side skin plate 3a side of the joint plates 4a and 4b provided at both ends of the hollow portion 7 and the steel pipes 9a and 9b. The air vent hole 6 is shown), and one or a plurality of air vents (one case is shown in the figure) corresponding to the hollow portion 7a of the steel pipes 9a, 9b. A hole 6a is provided. And the sealing material 8 which covers these air vent holes 6 and 6a is adhere | attached on the outer surface or inner surface of the joint plates 4a and 4b.
Also, one joint plate 4a is provided with a concrete injection pipe connection port 5 corresponding to the hollow portion 7, and a concrete injection pipe connection port 5a corresponding to the hollow portion 7a of the steel pipes 9a and 9b. It has been.

本実施の形態におけるセグメント１内へのコンクリート１１の充填作用は、実施の形態１の場合とほぼ同様であるが、各コンクリート注入管の接続口５，５ａにそれぞれコンクリート注入管１０を接続して、中空部７と鋼管９ａ，９ｂの中空部７ａ内に同時にコンクリート１１を充填してもよく、あるいは、先ず、中空部７又は鋼管９ａ，９ｂ内のいずれか一方にコンクリートを充填し、ついで、他方にコンクリート１１を充填するなど、適宜変更することができる。   The filling action of the concrete 11 into the segment 1 in the present embodiment is almost the same as in the first embodiment, but the concrete injection pipe 10 is connected to the connection ports 5 and 5a of each concrete injection pipe, respectively. The concrete 11 may be simultaneously filled in the hollow portion 7 and the hollow portion 7a of the steel pipes 9a, 9b, or first, concrete is filled in either the hollow portion 7 or the steel pipes 9a, 9b, and then, The other can be appropriately changed, such as filling the concrete 11.

上記の説明では、セグメント１の軸方向壁をそれぞれ１本の鋼管９ａ，９ｂで構成した場合を示したが、それぞれ複数本の鋼管で構成してもよく、あるいは、それぞれ１本の鋼管と鋼板とを組合わせて構成してもよい。
また、六面鋼殻セグメントの内部へコンクリート１１を充填して合成セグメントを製造する場合について説明したが、本発明は、六面鋼殻を型枠として使用し、脱型してコンクリートセグメントを製造するコンクリート充填方法としても使用することができる。 In the above description, the axial wall of the segment 1 is configured by one steel pipe 9a and 9b, respectively, but may be configured by a plurality of steel pipes, respectively, or each of one steel pipe and a steel plate. And may be combined.
Moreover, although the case where the concrete 11 was filled in the inside of the hexagonal steel shell segment and the synthetic segment was manufactured was explained, the present invention uses the hexagonal steel shell as a mold and demolds to produce the concrete segment. It can also be used as a concrete filling method.

本発明の実施の形態１に係る一部を断面で示した合成セグメント（六面鋼殻セグメント）の斜視図である。It is a perspective view of the synthetic segment (hexagonal steel shell segment) which showed the part which concerns on Embodiment 1 of this invention in the cross section. 図１の右側面図及びその中央断面図である。It is the right view of FIG. 1, and its center sectional drawing. 本実施の形態のコンクリート充填方法の説明図である。It is explanatory drawing of the concrete filling method of this Embodiment. 本発明の実施の形態２に係る一部を断面で示した合成セグメントの斜視図である。It is a perspective view of the synthetic segment which showed a part which concerns on Embodiment 2 of this invention with the cross section. 図４のＡ−Ａ断面図及び右側面図である。It is AA sectional drawing and the right view of FIG.

符号の説明Explanation of symbols

１ 合成セグメント（六面鋼殻セグメント）、２ａ，２ｂ 鋼板（軸方向壁）、３ａ 内周側スキンプレート、３ｂ 外周側スキンプレート、４ａ，４ｂ 継手板（周方向壁）、６ 空気抜き孔、７ 中空部、８ 織布（封孔材）、９ａ，９ｂ 鋼管、１１ コンクリート。   DESCRIPTION OF SYMBOLS 1 Composite segment (hexagonal steel shell segment), 2a, 2b Steel plate (axial wall), 3a Inner side skin plate, 3b Outer side skin plate, 4a, 4b Joint plate (circumferential wall), 6 Air vent hole, 7 Hollow part, 8 woven fabric (sealing material), 9a, 9b steel pipe, 11 concrete.

Claims (5)

一対の軸方向壁、内面側及び外面側スキンプレート、一対の周方向壁からなる六面鋼殻セグメントを有し、
前記一対の周方向壁の内面側スキンプレート側に設けた空気抜き孔の外面側又は内面側に、該空気抜き穴を覆って通気性及び通水性を有する封孔材を接着し、
前記一方の周方向壁に設けた穴から前記六面鋼殻セグメント内にコンクリートを注入することを特徴とする合成セグメントのコンクリート充填方法。 A hexagonal steel shell segment comprising a pair of axial walls, inner and outer skin plates, a pair of circumferential walls,
Adhering a sealing material having air permeability and water permeability to the outer surface side or inner surface side of the air vent hole provided on the inner surface side skin plate side of the pair of circumferential walls, covering the air vent hole,
A concrete filling method for a composite segment, wherein concrete is poured into the hexagonal steel shell segment from a hole provided in the one circumferential wall. 前記空気抜き孔を、前記一対の周方向壁にそれぞれ１個又は複数個設けたことを特徴とする請求項１記載の合成セグメントのコンクリート充填方法。   2. The method of filling concrete with concrete segments according to claim 1, wherein one or a plurality of the air vent holes are provided in each of the pair of circumferential walls. 前記空気抜き孔を、前記一対の周方向壁の前記内面側スキンプレート側の両隅角部近傍及び軸方向のほぼ中央部にそれぞれ設けたことを特徴とする請求項１又は２記載の合成セグメントのコンクリート充填方法。   3. The synthetic segment according to claim 1, wherein the air vent holes are provided in the vicinity of both corners of the pair of circumferential walls on the inner surface side skin plate side and in a substantially central portion in the axial direction. Concrete filling method. 前記空気抜き孔を、コンクリートの最大骨材の寸法とほぼ等しいか又はこれより大きく形成したことを特徴とする請求項１〜３のいずれかに記載の合成セグメントのコンクリート充填方法。   The method for filling concrete with a synthetic segment according to any one of claims 1 to 3, wherein the air vent hole is formed to be approximately equal to or larger than the size of the largest aggregate of concrete. 前記封孔材を、合成繊維からなる織布で形成したことを特徴とする請求項１〜４のいずれかに記載の合成セグメントのコンクリート充填方法。   The method for filling concrete with a synthetic segment according to any one of claims 1 to 4, wherein the sealing material is formed of a woven fabric made of synthetic fibers.
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JP2020041381A (en) * 2018-09-13 2020-03-19 株式会社安藤・間 Invert construction method in tunnel
CN112627828A (en) * 2020-11-05 2021-04-09 中煤科工集团北京华宇工程有限公司 Mine well wall structure and construction method thereof
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JP2017048590A (en) * 2015-09-01 2017-03-09 Ｊｆｅ建材株式会社 Frame body of segment, manufacturing method of segment, and segment
JP2020041381A (en) * 2018-09-13 2020-03-19 株式会社安藤・間 Invert construction method in tunnel
JP7090515B2 (en) 2018-09-13 2022-06-24 株式会社安藤・間 Invert construction method in tunnel
CN110080798A (en) * 2019-05-09 2019-08-02 黄河勘测规划设计研究院有限公司 Sandwich-type steel compound tube piece making method suitable for shield formula TBM
CN110080799A (en) * 2019-05-09 2019-08-02 黄河勘测规划设计研究院有限公司 The embedded steel compound tube piece making method of side steel suitable for shield formula TBM
CN110080797A (en) * 2019-05-09 2019-08-02 黄河勘测规划设计研究院有限公司 The board-like steel compound tube piece making method of full Baogang suitable for shield formula TBM
CN112627828A (en) * 2020-11-05 2021-04-09 中煤科工集团北京华宇工程有限公司 Mine well wall structure and construction method thereof
CN114872184A (en) * 2022-05-06 2022-08-09 中煤科工集团北京华宇工程有限公司 Method for manufacturing shield segment and method for manufacturing shield pipeline
CN114872184B (en) * 2022-05-06 2023-12-22 中煤科工集团北京华宇工程有限公司 Method for manufacturing shield segment and method for manufacturing shield pipeline

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