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JP3824390B2 - Separate shield machine - Google Patents
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JP3824390B2 - Separate shield machine - Google Patents

Separate shield machine Download PDF

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Publication number
JP3824390B2
JP3824390B2 JP21555097A JP21555097A JP3824390B2 JP 3824390 B2 JP3824390 B2 JP 3824390B2 JP 21555097 A JP21555097 A JP 21555097A JP 21555097 A JP21555097 A JP 21555097A JP 3824390 B2 JP3824390 B2 JP 3824390B2
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JP
Japan
Prior art keywords
machine
cutter
notch
shield
parent
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
Application number
JP21555097A
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Japanese (ja)
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JPH1144175A (en
Inventor
研一 金子
洋二 立石
昌宏 中村
茂男 藤井
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Taisei Corp
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Taisei Corp
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Filing date
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Priority to JP21555097A priority Critical patent/JP3824390B2/en
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Description

【0001】
【発明の属する技術分野】
本発明は、分離型シールド掘進機に関するものである。
【0002】
【従来の技術】
シールド掘進機を2基平行に並べた『めがね型』のシールドトンネルによって駅部などの拡大部を形成する工法が開発されている。
その場合に一般に駅部以外の路線部では、駅部ほどの幅を必要としないから、単円のシールドトンネルで充分である。
そのためには、地中において複円シールドトンネルから単円シールドトンネルに切り替える必要がある。
そのために例えばシールド掘進機の両側に三日月型のシールド掘進機を取り付け、複線部の掘進が終了したら地中で両側の三日月型シールド掘進機を捨てて中央のシールド掘進機のみで掘進するような方法が開発されている。
【0003】
【本発明が解決しようとする課題】
そのようなシールド掘進機では3基のシールド掘進機の円盤カッターが並ぶことになるが、図5に示すように両側のカッター軸aを接近させると中央のカッター軸bにぶつかることになる。したがって実際にはこうした構造のシールド掘進機は制作することはできない。
【0004】
本発明は上記したような従来の問題を解決するためになされたもので、カッター軸を接近して配置することが可能で、広い範囲の条件に適応することができる、分離型シールド掘進機を提供することを目的とする。
【0005】
【課題を解決するための手段】
上記のような目的を達成するために、本発明の分離型シールド掘進機は、シールド掘進機を2基平行に並べた形状の親機と、親機から発進する子機とによって構成し、親機の前面のカッターは、その一部を円弧状に切り欠いた三日月カッターを使用し、子機は両親機の中間の内部に配置しておき、両側の親機の三日月カッターの切り欠き部を合致させて円形の貫通部を形成した後に、この切り欠き部を合致させた貫通部から、子機を発進するように構成した、分離型シールド掘進機を特徴としたものである。
【0006】
あるいは本発明の分離型シールド掘進機は、シールド掘進機を2基平行に並べた形状の親機と、親機から発進する子機とによって構成し、親機の前面のカッターはスポークの一部を切り欠いて構成し、子機は両親機の中間の内部に配置しておき、両側の親機のカッターの切り欠き部を合致させて円形の貫通部を形成した後に、この切り欠き部を合致させた貫通部から、子機を発進するように構成した、分離型シールド掘進機を特徴としたものである。
【0007】
あるいは本発明の分離型シールド掘進機は、シールド掘進機を2基平行に並べた形状の親機と、親機から発進する子機とによって構成し、親機の前面のカッターには、その一部を円弧状に切り欠き可能なスライド部を設けて構成し、子機は両親機の中間の内部に配置しておき、両側の親機のカッターの一部をスライドして円弧状切り欠きを形成し、その切り欠き部を合致させて円形の貫通部を形成した後に、この切り欠き部を合致させた貫通部から、子機を発進するように構成した、分離型シールド掘進機を特徴としたものである。
【0008】
【本発明の実施の態様】
以下図面を参照しながら本発明の分離型シールド掘進機の実施例について説明する。
【0009】
<イ>全体の構成。
本発意の分離型シールド掘進機は、平行に並べた2基のシールド掘進機からなる親機1と、親機1の内部に収納されて所定の位置から発進できる子機2とによって構成する。平行に並べた2基の親機1はその間の屋根部分と床部分を、曲線連結板11で接続してある。その曲線連結板11によって連結部の剛性を高めることができる。
この連結板11によって包囲される円筒内部に、子機2を収納してある。
親機1、子機2ともに円筒状の外殻の前部にはカッターを設置し、内部に設けた推進ジャッキによってセグメントに反力を取って前進する。
【0010】
<ロ>親機1のカッター
通常のシールド掘進機であれば、その前面には機体の直径と同一の直径の円盤カッター12を取り付けてある。
あるいは機体の半径と等しい長さのスポークを、中心から均等な配置で放射状に配置してある。
これらの円盤カッター12あるいはスポークカッターによってトンネルの全断面を一度に掘削して前進する構成である。
しかし本発明のシールド掘進機の親機1では、円盤カッター12の場合、その前面のカッターは一部を円弧状の切り欠き部13を形成した三日月状カッターを使用する。
あるいはスポークカッターの場合には放射状に張り出したスポークの一部を切り欠いて構成する。
あるいは、円盤カッター12の一部に円弧の切り欠き部13を設け、この切り欠き部にはスライド可能な蓋を配置して通常は円盤として形成する。そして、必要に応じてこの蓋をスライドさせて切り欠き部13を解放し得るように構成することもできる。
【0011】
<ハ>子機2の配置。
前記したように親機1は2基のシールド掘進機を平行に並べた構造であるが、その両親機1の中間の連結板11によって包囲された円筒状の内部に、子機2を配置しておく。
この子機2の外径は、両側の親機1のカッターの切り欠き部13を合致させて形成した円形の貫通部の直径とほぼ等しく形成してある。
子機2の前面には子機2の外径と同一外径の回転円盤21を設ける。
この回転円盤21の前面には自転する2基の自転カッター22を取り付けてあり、したがって自転カッター22は、公転する回転円盤21の上で自転しつつ掘削を行うことになる。
この子機2の自転カッター22によって、両親機1の間の連結板11によって包囲された空間を掘削するが、連結板11の円弧と自転カッター22の直径が一致しないから、この自転カッター22はコピーカッター機構を設けて自転カッター22の掘削範囲外はコピーカッターによって掘削する。
【0012】
<ニ>親機1の掘進。
複線部分あるいは駅部では、シールド掘進機を2基平行に並べた形状の親機1によって掘進を進める。
親機1の接合部の土砂は、子機2の自転カッター22、およびそのコピーカッターによって掘削する。
掘進後には掘進機の内部でセグメントを組み立て、そのセグメントに反力を取って前進する機構は従来と同様である。
【0013】
<ホ>子機2の発進。
所定の位置に到達したら、親機1から子機2を発進する。
そのために、両側の親機1のカッターの切り欠き部13を合致させる。すると円形の貫通部を形成することができる。
この合致した貫通部の内径は子機2の外径にほぼ等しいから、子機2の後方にセグメントや反力体を設置して推進ジャッキを伸張すれば、貫通部から子機2を発進することができる。
こうして複線トンネルから単線トンネルへの変更を行うことができる。
【0014】
【本発明の効果】
本発明の分離型シールド掘進機は以上説明したようになるから、中央に設置した子機2のカッター軸は、親機1のカッターの裏側に設置することができる。
したがって従来の装置では不可能だった、両親機1のカッター軸を最も接近して配置するという構造を採用することが可能となった。
そのために各種の現地での要求に応じて、広い範囲の条件に適応することができる。
【図面の簡単な説明】
【図1】本発明の分離型シールド掘進機の分離前の状態の説明図。
【図2】分離前の状態の断面の説明図。
【図3】子機を分離した状態の説明図。
【図4】分離した状態の断面の説明図。
【図5】従来の構造の問題点の説明図。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a separate shield machine.
[0002]
[Prior art]
A construction method has been developed in which an enlarged part such as a station part is formed by a “glasses-type” shield tunnel in which two shield machines are arranged in parallel.
In that case, in general, in a route portion other than the station portion, a width as large as that of the station portion is not required, and thus a single shield tunnel is sufficient.
For this purpose, it is necessary to switch from a double circle shield tunnel to a single circle shield tunnel in the ground.
For this purpose, for example, a crescent-type shield machine is installed on both sides of the shield machine, and when the double-line part is dug, the crescent-type shield machine on both sides is thrown away and only the central shield machine is dug. Has been developed.
[0003]
[Problems to be solved by the present invention]
In such a shield machine, the disk cutters of the three shield machines are arranged side by side. However, when the cutter axes a on both sides are brought close to each other as shown in FIG. Therefore, in reality, a shield machine with such a structure cannot be produced.
[0004]
The present invention has been made to solve the conventional problems as described above, and provides a separate shield machine capable of arranging the cutter shaft close to each other and adapting to a wide range of conditions. The purpose is to provide.
[0005]
[Means for Solving the Problems]
In order to achieve the above-described object, the separation type shield machine of the present invention is composed of a master machine having a shape in which two shield machines are arranged in parallel and a slave machine starting from the master machine. The cutter on the front of the machine uses a crescent cutter with a part cut into an arc, and the slave unit is placed in the middle of the parent machine, and the notch of the crescent cutter on both sides of the parent machine is placed. The present invention is characterized by a separate shield machine that is configured to start a child machine from a penetration part that is matched with the cutout part after forming a circular penetration part.
[0006]
Alternatively, the separated shield machine according to the present invention is constituted by a parent machine in which two shield machines are arranged in parallel and a child machine starting from the parent machine, and the front cutter of the parent machine is a part of the spoke. The slave unit is placed in the middle of the parent unit, and the cutouts of the cutters on both sides are aligned to form a circular through hole. The present invention is characterized by a separate shield machine that is configured to start the child machine from the matched penetration part.
[0007]
Alternatively, the separation type shield machine according to the present invention is constituted by a master machine having a shape in which two shield machines are arranged in parallel and a slave machine starting from the master machine. The slide unit can be cut out in an arc shape, and the slave unit is placed inside the parent unit, and part of the cutters on both sides of the master unit are slid to create an arc notch. It is characterized by a separate shield machine that is configured to form a circular penetration by forming the cut-out portion and then forming a circular penetration portion, and then starting the child machine from the penetration portion that matches the cut-out portion. It is a thing.
[0008]
[Embodiments of the present invention]
Embodiments of the separated shield machine according to the present invention will be described below with reference to the drawings.
[0009]
<I> Overall configuration.
The separated type shield machine according to the present invention is constituted by a parent machine 1 composed of two shield machines that are arranged in parallel and a child machine 2 that is housed inside the parent machine 1 and can start from a predetermined position. In the two master units 1 arranged in parallel, the roof portion and the floor portion between them are connected by a curved connecting plate 11. The curved connecting plate 11 can increase the rigidity of the connecting portion.
The subunit | mobile_unit 2 is accommodated in the cylinder inside surrounded by this connection plate 11. FIG.
A cutter is installed in the front part of the cylindrical outer shell in both the master unit 1 and the slave unit 2, and a reaction force is applied to the segment by a propulsion jack provided inside.
[0010]
<B> Cutter of the main unit 1 If it is a normal shield machine, a disk cutter 12 having the same diameter as that of the machine body is attached to the front surface thereof.
Alternatively, spokes having a length equal to the radius of the fuselage are arranged radially from the center in an even arrangement.
These disk cutters 12 or spoke cutters excavate the entire cross section of the tunnel at a time and move forward.
However, in the base machine 1 of the shield machine of the present invention, in the case of the disk cutter 12, a crescent-shaped cutter in which a part of the front surface of the disk cutter 12 is formed with an arc-shaped notch 13 is used.
Alternatively, in the case of a spoke cutter, a part of the spoke protruding radially is cut out.
Alternatively, a circular arc notch 13 is provided in a part of the disk cutter 12, and a slidable lid is disposed in the notch, and is usually formed as a disk. And it can also comprise so that this notch part 13 can be released by sliding this cover as needed.
[0011]
<C> Arrangement of handset 2.
As described above, the master unit 1 has a structure in which two shield machines are arranged in parallel. The slave unit 2 is arranged in a cylindrical shape surrounded by the intermediate connecting plate 11 of the master unit 1. Keep it.
The outer diameter of the child device 2 is formed to be approximately equal to the diameter of the circular through-hole formed by matching the notch portions 13 of the cutters of the parent device 1 on both sides.
A rotating disk 21 having the same outer diameter as that of the child device 2 is provided on the front surface of the child device 2.
Two rotating cutters 22 that rotate on the front surface of the rotating disk 21 are attached. Therefore, the rotating cutter 22 excavates while rotating on the rotating rotating disk 21.
Although the space surrounded by the connecting plate 11 between the parent machines 1 is excavated by the rotating cutter 22 of the slave unit 2, the arc of the connecting plate 11 and the diameter of the rotating cutter 22 do not match. A copy cutter mechanism is provided, and a portion outside the excavation range of the rotating cutter 22 is excavated by the copy cutter.
[0012]
<D> Drilling of master unit 1.
In the double-track part or the station part, the digging is advanced by the master unit 1 having a shape in which two shield machines are arranged in parallel.
The earth and sand at the joint portion of the main unit 1 is excavated by the rotation cutter 22 of the sub unit 2 and its copy cutter.
After excavation, the mechanism for assembling the segment inside the excavator and taking the reaction force against the segment is the same as the conventional mechanism.
[0013]
<E> Start of handset 2.
When the predetermined position is reached, the slave unit 2 starts from the master unit 1.
For this purpose, the notch portions 13 of the cutters of the base unit 1 on both sides are matched. Then, a circular penetration part can be formed.
Since the inner diameter of the matched through portion is almost equal to the outer diameter of the child device 2, if a segment or reaction force body is installed behind the child device 2 and the propulsion jack is extended, the child device 2 is started from the penetration portion. be able to.
In this way, a change from a double track tunnel to a single track tunnel can be performed.
[0014]
[Effect of the present invention]
Since the separate shield machine according to the present invention has been described above, the cutter shaft of the slave unit 2 installed in the center can be installed on the back side of the cutter of the master unit 1.
Accordingly, it has become possible to employ a structure in which the cutter shaft of the parent machine 1 is arranged closest to the machine, which was impossible with the conventional apparatus.
Therefore, it can adapt to a wide range of conditions according to various local requirements.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a state before separation of a separation type shield machine according to the present invention.
FIG. 2 is an explanatory diagram of a cross section in a state before separation.
FIG. 3 is an explanatory diagram of a state in which a slave unit is separated.
FIG. 4 is an explanatory view of a cross section in a separated state.
FIG. 5 is an explanatory diagram of problems of a conventional structure.

Claims (4)

シールド掘進機を2基平行に並べた形状の親機と、
親機から発進する子機とによって構成し、
親機の前面のカッターは、その一部を円弧状に切り欠いた三日月カッターを使用し、
子機は両親機の中間の内部に配置しておき、
両側の親機の三日月カッターの切り欠き部を合致させて円形の貫通部を形成した後に、
この切り欠き部を合致させた貫通部から、子機を発進するように構成した、
分離型シールド掘進機
A master machine with two shield machines machined in parallel,
Consists of a child machine starting from the parent machine,
For the cutter on the front of the main unit, use a crescent cutter with a part cut into an arc.
The child machine is placed inside the parent machine,
After forming the circular penetration part by matching the notch part of the crescent cutter of the main unit on both sides,
It was configured to start the handset from the penetration part that matched this notch,
Separate shield machine
シールド掘進機を2基平行に並べた形状の親機と、
親機から発進する子機とによって構成し、
親機の前面のカッターはスポークの一部を切り欠いて構成し、
子機は両親機の中間の内部に配置しておき、
両側の親機のカッターの切り欠き部を合致させて円形の貫通部を形成した後に、 この切り欠き部を合致させた貫通部から、子機を発進するように構成した、
分離型シールド掘進機
A master machine with two shield machines machined in parallel,
Consists of a child machine starting from the parent machine,
The cutter on the front of the main unit is made by cutting out part of the spoke,
The child machine is placed inside the parent machine,
After forming the circular penetration part by matching the notch part of the cutter of the main unit on both sides, it was configured to start the slave unit from the penetration part that matched this notch part,
Separate shield machine
シールド掘進機を2基平行に並べた形状の親機と、
親機から発進する子機とによって構成し、
親機の前面のカッターには、その一部を円弧状に切り欠き可能なスライド部を設けて構成し、
子機は両親機の中間の内部に配置しておき、
両側の親機のカッターの一部をスライドして円弧状切り欠きを形成し、
その切り欠き部を合致させて円形の貫通部を形成した後に、
この切り欠き部を合致させた貫通部から、子機を発進するように構成した、
分離型シールド掘進機
A master machine with two shield machines machined in parallel,
Consists of a child machine starting from the parent machine,
The cutter on the front of the main unit is configured with a slide part that can be cut out in a circular arc shape.
The child machine is placed inside the parent machine,
Slide a part of the cutter of the main unit on both sides to form an arc-shaped notch,
After matching the notch to form a circular penetration,
It was configured to start the handset from the penetration part that matched this notch,
Separate shield machine
子機のカッターは、
子機の外径と同一外径の回転円盤上に、
自転する2基の自転カッターを取り付け、
この自転カッターはコピーカッター機構を設けて構成した、
請求項1、2記載の分離型シールド掘進機
The handset cutter is
On the rotating disk with the same outer diameter as the slave unit,
Attach two rotating cutters to rotate,
This rotating cutter is configured with a copy cutter mechanism,
The separated shield machine according to claim 1 or 2.
JP21555097A 1997-07-25 1997-07-25 Separate shield machine Expired - Fee Related JP3824390B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21555097A JP3824390B2 (en) 1997-07-25 1997-07-25 Separate shield machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21555097A JP3824390B2 (en) 1997-07-25 1997-07-25 Separate shield machine

Publications (2)

Publication Number Publication Date
JPH1144175A JPH1144175A (en) 1999-02-16
JP3824390B2 true JP3824390B2 (en) 2006-09-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP21555097A Expired - Fee Related JP3824390B2 (en) 1997-07-25 1997-07-25 Separate shield machine

Country Status (1)

Country Link
JP (1) JP3824390B2 (en)

Also Published As

Publication number Publication date
JPH1144175A (en) 1999-02-16

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