JP2942705B2 - Concrete composite segment - Google Patents
Concrete composite segmentInfo
- Publication number
- JP2942705B2 JP2942705B2 JP6099720A JP9972094A JP2942705B2 JP 2942705 B2 JP2942705 B2 JP 2942705B2 JP 6099720 A JP6099720 A JP 6099720A JP 9972094 A JP9972094 A JP 9972094A JP 2942705 B2 JP2942705 B2 JP 2942705B2
- Authority
- JP
- Japan
- Prior art keywords
- segment
- outer frame
- concrete
- concrete composite
- axial direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Description
【０００１】[0001]
【産業上の利用分野】地下鉄、電力、電信電話、共同溝
等シールド工法によるトンネルを構築する場合のセグメ
ントに関する。BACKGROUND OF THE INVENTION The present invention relates to a segment for constructing a tunnel by a shield method such as a subway, electric power, telegraph and telephone, and a common ditch.
【０００２】[0002]
【従来の技術】セグメントの材料としては古くから、木
材、鋳鉄、鋼、コンクリート等の材料が用いられ、その
間、強度上の問題、経済上の問題、或いは施工上の問題
等についていろいろの研究がなされて来た。2. Description of the Related Art For a long time, materials such as wood, cast iron, steel, concrete and the like have been used as materials for segments. During that time, various studies have been made on strength problems, economic problems or construction problems. It has been done.
【０００３】[0003]
【発明の解決しようとする課題】いずれの材料のセグメ
ントも一長一短があるが、木材のセグメントは、軽量で
扱い易く人力で施工出来るメリットがある反面、縦軸方
向の座屈に弱く、推力をかけねばならない工法には応用
し難い。鋳鉄性のセグメントは、製作コストがかかり、
重量も重く取扱に重機を要し施工が困難である。鋼性セ
グメントは土圧に対する剛性も強く、断面も小さくて済
むが縦軸方向の変形に弱いという欠点がある。そこで近
年多くは鉄筋コンクリートのセグメントが利用される。
鉄筋コンクリートのセグメントの場合は、セグメントの
製作に際して湾曲した精度の高い型枠を組立て、内部に
鉄筋を組み込みコンクリートを打設する過程を経ねばな
らず、型枠の組立、取り外しに膨大な労力を要した。本
発明は、集成材で外枠を作成してコンクリートを打設し
そのままセグメントとして利用している。集成材は木材
よりは強度が高く、かつ木材利用の集成材使用というこ
とで地球環境保護に優しいし、型枠の組立、取り外しの
手順が不要となり、かつ廃材等も積極的に利用して軽量
とし、取扱が簡便になるように工夫したものである。Although each material segment has its advantages and disadvantages, the wood segment has the advantages of being lightweight, easy to handle, and capable of being constructed by human power, but is weak against buckling in the longitudinal direction, and requires thrust. It is difficult to apply to construction methods that must be performed. Cast iron segments are expensive to manufacture,
It is heavy and requires heavy equipment to handle, making construction difficult. The steel segment has high rigidity against earth pressure and a small cross section, but has a disadvantage that it is weak against deformation in the longitudinal direction. Therefore, in recent years, reinforced concrete segments are often used.
In the case of reinforced concrete segments, a curved, highly accurate formwork must be assembled when the segments are manufactured, and a process must be performed in which the reinforcing steel is installed inside and concrete is cast. did. According to the present invention, an outer frame is made of glulam, concrete is poured, and the concrete is used as a segment. Glued lumber has higher strength than wood, and it is easy to use for wood. It is easy to protect the global environment. It eliminates the need for formwork assembly and removal procedures. It has been devised to make handling easier.
【０００４】[0004]
【課題を解決するための手段】円筒形を軸方向に数等分
してなる円筒面に沿って、所定の厚みを持ち円筒の外面
を開放し凹部となし、一方の円周切り口と軸方向に突出
し、他方の円周切り口と軸方向に窪んだ側面で形成され
る集成材の外枠に、鉄筋を配置しコンクリートを、該外
枠に打設して合成セグメントを形成する。セグメントピ
ース間の接合には接合部の溝とコッターを用い、一方の
円周切り口と軸方向切り口に突出し、他方の円周切り口
と軸方向切り口に窪んだ側面を嵌合して形成する。又軸
方向に長いセグメントでは、集成材の外枠を数分割し長
尺ボルトで緊結することも可能である。集成材よりなる
外枠に打設するコンクリートは、通常のコンクリートで
もよいし、もみ殻、プラスチックの廃材小片を混入する
ことも可能である。Means for solving the problems Along a cylindrical surface obtained by dividing the cylindrical shape into several parts in the axial direction, the outer surface of the cylinder having a predetermined thickness is opened to form a concave portion, and one circumferential cut is formed in the axial direction. In the outer frame of the laminated wood formed by the other circumferential cut and the axially depressed side surface, a reinforcing bar is arranged and concrete is poured into the outer frame to form a composite segment. It uses a groove and cotter junction to bonding between segment piece, the one
Protruding into the circumferential cut and axial cut, the other circumferential cut
And the concave side face is fitted to the axial cut. In the case of a segment that is long in the axial direction, it is also possible to divide the outer frame of the laminated wood into several parts and bind them with long bolts. The concrete to be poured into the outer frame made of glulam may be ordinary concrete, or it is possible to mix rice husks and small pieces of waste plastic.
【０００５】[0005]
【作用】本発明のセグメントによれば、木材のセグメン
トとコンクリートのセグメントの両方の長所を生かすこ
とが出来る。即ち集成材で外枠を構成して、コンクリー
トを打設してそのまま使用に供するので、従来のコンク
リート製品のように型枠の組み立て、組み外しの手順が
不要になった。また、コンクリートに、もみ殻とかプラ
スチック廃材小片を混入するので、軽量となり取扱が容
易になった。一方従来のコンクリート製品のもつ剛性は
そのまま残され土圧や変形に強い。According to the segment of the present invention, the advantages of both the wood segment and the concrete segment can be utilized. That is, since the outer frame is made of laminated wood, the concrete is cast and used as it is, so that the procedure of assembling and removing the mold as in the case of the conventional concrete product is not required. In addition, since rice husks and small pieces of plastic waste are mixed with concrete, the weight is reduced and the handling is facilitated. On the other hand, the rigidity of a conventional concrete product is left as it is, and it is resistant to earth pressure and deformation.
【０００６】[0006]
【実施例】図１に本発明の実施例の斜視図を示す。円筒
形を軸方向に数等分してなる円筒面に沿って、所定の厚
みを持ち円筒の外面を開放して凹部を設け、一方の円周
切り口と軸方向に突出し、他方の円周切り口と軸方向に
窪んだ側面で形成される集成材の外枠１に、鉄筋２を配
置しコンクリートを、該外枠に打設してコンクリート合
成セグメントを形成する。セグメントピース間の接合に
は接合部の溝３とコッター４を用い、一方の円周切り口
と軸方向切り口に突出し、他方の円周切り口と軸方向切
り口に窪んだ側面を嵌合して形成する。図２（ａ）は円
周方向の接合部を示す詳細図であり、図２（ｂ）は軸方
向の接合部の詳細図である。又軸方向に長いセグメント
では、図３（ａ）、（ｂ）に示すように集成材の型枠１
を数分割し長尺ボルト６で緊結することも可能である。FIG. 1 is a perspective view of an embodiment of the present invention. Along the cylindrical surface obtained by dividing the cylindrical shape into several parts in the axial direction, the outer surface of the cylinder has a predetermined thickness, and the outer surface of the cylinder is opened to form a recess, and one circumferential cut is projected in the axial direction, and the other circumferential cut is formed. A reinforcing bar 2 is arranged on an outer frame 1 of a laminated wood formed by the side surface which is depressed in the axial direction, and concrete is poured into the outer frame to form a concrete composite segment. The joint between the segment pieces uses the groove 3 and the cotter 4 at the joint , and one circumferential cut
And the axial cut, and the other circumferential cut and the axial cut
It is formed by fitting the concave side surface to the opening. FIG. 2A is a detailed view showing a circumferential joint, and FIG. 2B is a detailed view of an axial joint. In the axially long segment, as shown in FIGS.
Can be divided into several parts and fastened by long bolts 6.
【０００７】図３（ｂ）は図３（ａ）のＡ−Ａ断面で外
枠を軸方向に３分割して長尺ボルトで緊結した図であ
る。集成材よりなる型枠に打設するコンクリート６は、
通常のコンクリートでもよいしもみ殻、プラスチックの
廃材小片を混入することも可能である。また、埋め込ん
む鉄筋にコンクリート打設後、緊張を与える場合もあ
る。FIG. 3 (b) is a view in which the outer frame is divided into three parts in the axial direction along the line AA in FIG. Concrete 6 to be cast on a formwork made of glulam
Normal concrete may be mixed with rice husks and small pieces of waste plastic. Also, tension may be applied after concrete is poured into the reinforcing steel to be embedded.
【０００８】図４はセグメントを軸方向に分割して長尺
ボルト６と大型ナット７で緊結した図である。FIG. 4 is a view in which a segment is divided in the axial direction and fastened by a long bolt 6 and a large nut 7.
【０００９】[0009]
【発明の効果】この発明の効果は次の通りである。The effects of the present invention are as follows.
【００１０】（イ）コンクリートのセグメントのよう
に、製造時、型枠の組み立て、組み外しという煩雑な労
力を要しない。[0010] (a) Unlike the concrete segment, it does not require the complicated labor of assembling and removing the formwork during manufacturing.
【００１１】（ロ）木材のセグメントより、剛性、強度
とも勝る。(B) Rigidity and strength are superior to wood segments.
【００１２】（ハ）集成材を用いたり、打設コンクリー
ト中に、もみ殻やプラスチック廃材の小片を混入するこ
とにより、軽量となり取扱が容易となる。(C) By using glued laminated timber or by mixing small pieces of rice hulls and plastic waste material into cast concrete, the weight is reduced and the handling becomes easier.
【００１３】（ニ）廃材の利用により、安価となる。(D) The cost is reduced by using the waste material.
【図１】本発明の合成セグメントの斜視図である。FIG. 1 is a perspective view of a composite segment of the present invention.
【図２】（ａ）円周方向の接合部の詳細図である。 （ｂ）軸方向の接合部の詳細図である。FIG. 2 (a) is a detailed view of a joint in a circumferential direction. (B) It is a detailed view of the joint part in the axial direction.
【図３】（ａ）軸方向に３分割したセグメントを長尺ボ
ルトで緊結した斜視図である。 （ｂ）（ａ）のＡ−Ａ断面図である。FIG. 3A is a perspective view in which segments divided into three in the axial direction are fastened by long bolts. (B) It is AA sectional drawing of (a).
【図４】軸方向にセグメントを分割した場合、長尺ボル
トで緊結した詳細図である。FIG. 4 is a detailed view of a case where a segment is divided in the axial direction and the segments are tightened with a long bolt.
１・・・外枠、２・・・鉄筋のメッシュ、３・・・接合
部溝、４・・・コッター、５・・・一方の円周切り口と
軸方向切り口に突出し、他方の円周切り口と軸方向切り
口に窪んだ部分、６・・・長尺ボルト、７・・・大型ナ
ット、８・・・コンクリート DESCRIPTION OF SYMBOLS 1 ... Outer frame, 2 ... Rebar mesh, 3 ... Joint groove, 4 ... Cotter , 5 ... One circumferential cut and
Protrudes into the axial cut, the other circumferential cut and the axial cut
Depressed part in mouth , 6 long bolt, 7 large nut, 8 concrete
Claims (4)
に沿って、所定の厚みを持ち円筒の外面を開放して凹部
を設け、一方の円周切り口と軸方向に突出し、他方の円
周切り口と軸方向切り口に窪んだ側面で形成される外枠
に、鉄筋を配置しコンクリートを、該外枠に打設してな
ることを特徴とするコンクリート合成セグメント。1. A concave portion is formed by opening the outer surface of a cylinder having a predetermined thickness along a cylindrical surface obtained by dividing the cylindrical shape into several parts in the axial direction, and projecting in the axial direction with one of the circumferential cuts. A concrete composite segment wherein a reinforcing bar is disposed on an outer frame formed by a side recessed at the other circumferential cut and an axial cut , and concrete is poured into the outer frame.
クリート合成セグメント。2. The concrete composite segment according to claim 1, wherein the outer frame is a laminated wood.
長尺ボルトで緊結してなる請求項１又は２記載のコンク
リート合成セグメント。3. The outer frame is divided circumferentially or axially,
3. The concrete composite segment according to claim 1, wherein the segment is joined by a long bolt.
グメントに、コッターを設けてなる請求項１、２又は３
記載のコンクリート合成セグメント。4. A cotter is provided in a segment obtained by dividing an outer frame in a circumferential direction or an axial direction.
The described concrete composite segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6099720A JP2942705B2 (en) | 1994-05-13 | 1994-05-13 | Concrete composite segment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6099720A JP2942705B2 (en) | 1994-05-13 | 1994-05-13 | Concrete composite segment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07305599A JPH07305599A (en) | 1995-11-21 |
| JP2942705B2 true JP2942705B2 (en) | 1999-08-30 |
Family
ID=14254916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6099720A Expired - Fee Related JP2942705B2 (en) | 1994-05-13 | 1994-05-13 | Concrete composite segment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2942705B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365037A (en) * | 2020-04-16 | 2020-07-03 | 青海民族大学 | Tunnel supporting template for civil engineering |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307006B (en) * | 2019-05-28 | 2020-10-02 | 同济大学 | Joggle type shield tunnel segment and connecting method thereof |
| CN112065407A (en) * | 2020-09-14 | 2020-12-11 | 嘉兴博睿创业服务有限公司 | Tunnel expanding machine with automatic tunnel segment dismounting mechanism |
-
1994
- 1994-05-13 JP JP6099720A patent/JP2942705B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111365037A (en) * | 2020-04-16 | 2020-07-03 | 青海民族大学 | Tunnel supporting template for civil engineering |
| CN111365037B (en) * | 2020-04-16 | 2021-10-26 | 青海民族大学 | Tunnel supporting template for civil engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07305599A (en) | 1995-11-21 |
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