JPH06234113A - Die frame for preparation of centrifugally molded tunnel liner - Google Patents
Die frame for preparation of centrifugally molded tunnel linerInfo
- Publication number
- JPH06234113A JPH06234113A JP5022717A JP2271793A JPH06234113A JP H06234113 A JPH06234113 A JP H06234113A JP 5022717 A JP5022717 A JP 5022717A JP 2271793 A JP2271793 A JP 2271793A JP H06234113 A JPH06234113 A JP H06234113A
- Authority
- JP
- Japan
- Prior art keywords
- tunnel liner
- mold
- centrifugal molding
- concrete
- seal plate
- 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.)
- Withdrawn
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、シールド工法や推進工
法に用いられるコンクリート製の遠心成形トンネルライ
ナの製造用型枠に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold for manufacturing a concrete centrifugally formed tunnel liner used in a shield construction method and a propulsion construction method.
【０００２】[0002]
【従来の技術】シールド工法や推進工法に用いられるト
ンネルライナは、その外面とシールド機が接触して侵入
水を防ぐ機能が必要であり、外周面が正確で滑らかな仕
上となっていることが重要である。従来のコンクリート
製トンネルライナは、この外周面を手仕上によって仕上
成形するものであった。2. Description of the Related Art A tunnel liner used in a shield construction method or a propulsion construction method must have a function of preventing intrusion of water due to contact between the outer surface of the tunnel liner and a shield machine, and the outer peripheral surface has an accurate and smooth finish. is important. In the conventional concrete tunnel liner, the outer peripheral surface is finish-molded by hand.
【０００３】従ってその製造時には、コンクリ−トに十
分な振動を与えて締固めを行い、外周面は手作業で丁寧
に仕上げる必要があった。このため、高度な仕上げ技術
を必要とし、仕上げ技術の個人差によるばらつきを生ず
るほか、仕上げ作業に入る前にかなりの前置時間が必要
となるため、作業時間が極端に長くなるなどの問題があ
る。Therefore, at the time of its manufacture, it was necessary to give sufficient vibration to the concrete for compaction and to carefully finish the outer peripheral surface manually. For this reason, a high level of finishing technology is required, and in addition to variations due to individual differences in finishing technology, a considerable amount of pre-positioning time is required before starting the finishing work, which causes problems such as extremely long working time. is there.
【０００４】本発明者らは、このような問題を解決する
ために、トンネルライナを適切な大きさの円弧状製品に
に分割し、遠心成形によってこれを製造し、高品質のト
ンネルライナを高能率で製造する技術を開発している。In order to solve such a problem, the inventors of the present invention divided the tunnel liner into arc-shaped products of appropriate sizes and manufactured them by centrifugal molding to produce a high-quality tunnel liner. We are developing technologies for efficient manufacturing.
【０００５】[0005]
【発明が解決しようとする課題】トンネルライナを適切
な円弧状製品に分割し、これを遠心成形によって製造す
る場合、円弧状製品の周囲を形成する型枠を遠心成形型
枠ドラム内に取付ける必要がある。遠心成形コンクリー
トは、重力の加速度の数十倍の加速度の遠心力をコンク
リ−トに附加するため、外周側が極めて密実なコンクリ
ートとなる。遠心力成形コンクリート製品は、通常、パ
イプ、杭、ポールなどのように、円周が一体のものであ
る。ところが上記トンネルライナは、分割するので、円
周を横切る型枠が必要となる。このような型枠は、遠心
成形ドラム型枠との取付け部に隙間を生じ易く、そこか
らペースト漏れを生じるという問題がある。このような
ペースト漏れを生じると、その部分のコンクリートの品
質が劣化し、均質なコンクリ−トを得ることができな
い。特に、トンネルライナは外周部の止水性が重要であ
るから、このようなペースト漏れを生じることは、決定
的な欠陥となる。When the tunnel liner is divided into suitable arc-shaped products and manufactured by centrifugal molding, it is necessary to mount the mold forming the circumference of the arc-shaped products in the centrifugal molding mold drum. There is. Centrifugal molded concrete has a centrifugal force of several tens of times the acceleration of gravity applied to the concrete, so that the outer peripheral side becomes extremely solid concrete. Centrifugal molded concrete products usually have an integral circumference, such as pipes, piles, poles and the like. However, since the above-mentioned tunnel liner is divided, a formwork that crosses the circumference is required. In such a mold, there is a problem that a gap is apt to be generated in a mounting portion with the centrifugal molding drum mold, and a paste leaks from there. When such paste leakage occurs, the quality of the concrete in that portion deteriorates, and it is not possible to obtain a uniform concrete. In particular, since the waterproofness of the outer peripheral portion of the tunnel liner is important, the occurrence of such paste leakage is a critical defect.
【０００６】本発明は、このような問題を解決した遠心
成形トンネルライナの製造用型枠を提供することを目的
とするものである。An object of the present invention is to provide a mold for manufacturing a centrifugally formed tunnel liner which solves the above problems.
【０００７】[0007]
【課題を解決するための手段】本発明は、円周方向に複
数箇に分割したトンネルライナの各周縁型枠に遠心成形
ドラムの内面に接するシール板を設け、このシール板と
遠心成形ドラムとの当接面にシールパッキングを介装
し、このシール板を前記遠心成形ドラム内面に圧着する
手段を設けたことを特徴とする遠心成形トンネルライナ
の製造用型枠を提供する。According to the present invention, a sealing plate which is in contact with the inner surface of a centrifugal molding drum is provided on each peripheral form of a tunnel liner divided into a plurality of pieces in the circumferential direction. A mold for manufacturing a centrifugal molding tunnel liner, characterized in that a seal packing is provided on the contact surface of the centrifugal molding machine, and means for crimping the sealing plate to the inner surface of the centrifugal molding drum is provided.
【０００８】前記シールパッキングには水膨張性ゴムを
用いると好適である。また、遠心成形ドラム内で隣接す
るトンネルライナの周縁型枠の、ドラム内面と接する面
を、一体に連結してしまうことによって、コンクリート
の外径から型枠の外に通ずる経路がなくなるので、遠心
力が作用してもペースト漏れを生じない。また、周縁型
枠をマグネットゴムとすると、取付け取り外し等が簡単
となる。It is preferable to use water-expandable rubber for the seal packing. Also, since the peripheral molds of the adjacent tunnel liners in the centrifugal molding drum are integrally connected to the surface in contact with the inner surface of the drum, there is no path from the outer diameter of the concrete to the outside of the mold. No paste leakage even when force is applied. Further, if the peripheral form is made of magnet rubber, attachment / detachment and the like become easy.
【０００９】[0009]
【作用】本発明の型枠は、遠心成形の際に、ペースト漏
れを生じないから、健全密実なコンクリ−トを得ること
ができる。特に、隣接する型枠の遠心成形ドラムの内面
と接するシール板を繋いだ型枠では、両方のコンクリ−
トの遠心力による圧力がバランスするから、好都合であ
る。The mold of the present invention does not cause paste leakage during centrifugal molding, so that a sound and solid concrete can be obtained. In particular, in a formwork in which a seal plate that is in contact with the inner surface of the centrifugal molding drum of the adjacent formwork is connected, both concretes are
This is convenient because the pressure due to the centrifugal force of the balance is balanced.
【００１０】[0010]
【実施例】以下図面を参照して本発明の実施例を説明す
る。図１は本発明の実施例のトンネルライナの周縁型枠
１の断面図を示すものである。図１中において、周縁型
枠１は遠心成形ドラムのシェル３内に圧着させるシール
板２を備えている。このシール板２にシール材パッキン
グ５を挿入する溝を設け、ボルト４によってシール板２
をドラムシェル３に圧着する。このような構造とするこ
とによって、型枠内にコンクリ−ト１０を打設し、遠心
力成形したときに、ペースト漏れが生じるのを防止する
ことができる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of a peripheral form 1 of a tunnel liner according to an embodiment of the present invention. In FIG. 1, the peripheral formwork 1 is provided with a seal plate 2 which is pressed into a shell 3 of a centrifugal molding drum. This seal plate 2 is provided with a groove into which the seal material packing 5 is inserted, and the seal plate 2 is fixed by bolts 4.
Is crimped onto the drum shell 3. With such a structure, it is possible to prevent the leakage of paste when the concrete 10 is cast in the mold and centrifugally molded.
【００１１】なお、図１には、コンクリ−ト１０内に設
けるインサート６をコンクリ−トの接続端面に設けるた
めに、周縁型枠１に取付金物７、結合ボルト８を取付け
たものを示している。図２は隣接する周縁型枠１、１
の、シェル３と接するシール板２を、一体に成形した実
施例を示している。この場合、遠心力による左右のコン
クリ−ト１０、１０の圧力がバランスするのでペースト
漏れが生じることはない。FIG. 1 shows a peripheral formwork 1 to which a fitting 7 and a connecting bolt 8 are attached in order to provide an insert 6 provided in the concrete 10 on the connection end face of the concrete. There is. FIG. 2 shows adjacent peripheral formwork 1, 1.
In this embodiment, the seal plate 2 in contact with the shell 3 is integrally molded. In this case, since the pressures of the left and right concretes 10 and 10 due to the centrifugal force are balanced, the paste does not leak.
【００１２】実施例の型枠によれば、外面が密実な良質
のコンクリ−トからなるトンネルライナを容易に製造す
ることができる。According to the formwork of the embodiment, it is possible to easily manufacture a tunnel liner having a solid outer surface and made of a good quality concrete.
【００１３】[0013]
【発明の効果】本発明によれば、外面が密実な良質のト
ンネルライナを容易に製造することができる。According to the present invention, a good quality tunnel liner having a solid outer surface can be easily manufactured.
【図１】実施例のトンネルライナの周縁型枠の断面図で
ある。FIG. 1 is a sectional view of a peripheral formwork of a tunnel liner according to an embodiment.
【図２】実施例のトンネルライナの周縁型枠の断面図で
ある。FIG. 2 is a cross-sectional view of the peripheral formwork of the tunnel liner of the embodiment.
１ 周縁型枠 ２ シール板 ３ ドラムシェル ４ ボルト ５ パッキング ６ インサート ７ 取付金物 ８ 結合ボルト １０ コンクリート 1 Peripheral form 2 Seal plate 3 Drum shell 4 Bolt 5 Packing 6 Insert 7 Mounting hardware 8 Coupling bolt 10 Concrete
Claims (4)
イナの各周縁型枠に、遠心成形ドラムの内面に接するシ
ール板を設け、該シール板と遠心成形ドラムとの当接面
にシールパッキングを介装し、該シール板を前記遠心成
形ドラム内面に圧着する手段を設けたことを特徴とする
遠心成形トンネルライナの製造用型枠。1. A seal plate contacting an inner surface of a centrifugal molding drum is provided on each peripheral form of a tunnel liner divided into a plurality of pieces in a circumferential direction, and a seal packing is provided on a contact surface between the seal plate and the centrifugal molding drum. And a means for press-bonding the seal plate to the inner surface of the centrifugal molding drum, the mold for manufacturing a centrifugal molding tunnel liner.
あることを特徴とする請求項１記載の遠心成形トンネル
ライナの製造用型枠。2. The mold for manufacturing a centrifugally formed tunnel liner according to claim 1, wherein the seal packing is water-expandable rubber.
イナの周縁型枠の、ドラム内面と接するシール板を一体
の型枠としたことを特徴とする遠心成形トンネルライナ
の製造用型枠。3. A mold for producing a centrifugal molding tunnel liner, characterized in that the peripheral molds of adjacent tunnel liners in the centrifugal molding drum are integrally formed with a seal plate which is in contact with the inner surface of the drum.
１又は３記載の遠心成形トンネルライナの製造用型枠。4. The mold for manufacturing a centrifugally formed tunnel liner according to claim 1, wherein the peripheral mold is a magnet rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5022717A JPH06234113A (en) | 1993-02-10 | 1993-02-10 | Die frame for preparation of centrifugally molded tunnel liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5022717A JPH06234113A (en) | 1993-02-10 | 1993-02-10 | Die frame for preparation of centrifugally molded tunnel liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06234113A true JPH06234113A (en) | 1994-08-23 |
Family
ID=12090562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5022717A Withdrawn JPH06234113A (en) | 1993-02-10 | 1993-02-10 | Die frame for preparation of centrifugally molded tunnel liner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06234113A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08229905A (en) * | 1995-03-01 | 1996-09-10 | Ibigawa Concrete Kogyo Kk | Production of concrete block whose surface is partially subjected to surface roughening finish by washing finish |
-
1993
- 1993-02-10 JP JP5022717A patent/JPH06234113A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08229905A (en) * | 1995-03-01 | 1996-09-10 | Ibigawa Concrete Kogyo Kk | Production of concrete block whose surface is partially subjected to surface roughening finish by washing finish |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000509 |