JPH10292776A - Shield machine whose posture can be changed and shielding method - Google Patents
Shield machine whose posture can be changed and shielding methodInfo
- Publication number
- JPH10292776A JPH10292776A JP11526597A JP11526597A JPH10292776A JP H10292776 A JPH10292776 A JP H10292776A JP 11526597 A JP11526597 A JP 11526597A JP 11526597 A JP11526597 A JP 11526597A JP H10292776 A JPH10292776 A JP H10292776A
- Authority
- JP
- Japan
- Prior art keywords
- shield
- excavator
- shield excavator
- excavation
- extruded body
- 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.)
- Pending
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、掘進姿勢の変更可
能なシールド掘進機と掘進方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield excavator capable of changing a digging posture and a digging method.
【0002】[0002]
【従来の技術】シールド掘進機を、中心軸に平行方向に
2基並べて一体化したシールド掘進機が開発されてい
る。このような形状のシールド掘進機は、路線部では横
長の姿勢で掘進して土被りを浅くして掘進を行い、駅部
では用地内に収めるために縦長の姿勢で掘進を行うこと
が望ましい。その場合に従来のシールド掘進機では、ス
タビライザーと称する皿板を油圧ジャッキで押し出す装
置を使用して、掘進中の抵抗を大きくすることによっ
て、掘進姿勢の制御、変更を行っている。2. Description of the Related Art A shield machine having two shield machines in parallel with a central axis has been developed. It is desirable that the shield excavator having such a shape excavate in a horizontal position on a route portion to perform excavation with a shallow earth covering, and to excavate in a station portion in a vertical position in order to fit in a site. In this case, in the conventional shield excavator, the excavation attitude is controlled and changed by increasing the resistance during excavation by using a device called a stabilizer, which pushes out a plate plate with a hydraulic jack.
【0003】[0003]
【本発明が解決しようとする課題】しかし前記したよう
な従来の装置では、スタビライザーを押し付けたまま掘
進することはできず、掘進機に捻りを与えるような大き
な力は得られなかった。However, in the above-mentioned conventional apparatus, it is impossible to excavate while the stabilizer is pressed, and a large force for giving a twist to the excavator was not obtained.
【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、トンネル周辺の壁面を加圧
して、掘進機にひねりを与えつつ掘進を続けることがで
きる、掘進姿勢の変更可能なシールド掘進機と、その掘
進方法を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and it is intended to change the excavation posture in which the excavation posture can be continued by applying pressure to the wall around the tunnel and giving a twist to the excavator. It is an object of the present invention to provide a possible shield excavator and its excavation method.
【0005】[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、本発明の掘進姿勢の変更可能なシールド掘
進機は、シールド掘進機を、中心軸に平行方向に複数基
並べて一体化し、各シールド掘進機には推進装置、セグ
メント組み立て装置などを設置し、各シールド掘進機に
は、掘削壁面から反力を取る押し出し体を装備し、一方
のシールド掘進機の押し出し体を、他方のシールド掘進
機の押し出し体とは対称位置に配置して構成した、掘進
姿勢の変更可能なシールド掘進機を特徴としたものであ
る。SUMMARY OF THE INVENTION In order to achieve the above object, a shield excavator of the present invention capable of changing the excavation posture is provided by integrating a plurality of shield excavators in a direction parallel to a central axis. Each shield excavator is equipped with a propulsion device, a segment assembling device, etc., and each shield excavator is equipped with an extruded body that takes a reaction force from the excavation wall, and the extruded body of one shield excavator is mounted on the other, The present invention is characterized by a shield excavator whose excavation posture can be changed and which is arranged symmetrically with respect to the extruded body of the shield excavator.
【0006】さらに本発明のシールド掘進機の掘進方法
は、シールド掘進機を、中心軸に平行方向に複数基並べ
て一体化し、各シールド掘進機には推進装置、セグメン
ト組み立て装置などを設置し、各シールド掘進機には、
掘削壁面から反力を取る押し出し体を装備し、一方のシ
ールド掘進機の押し出し体を、他方のシールド掘進機の
押し出し体とは対称位置に配置し、各押し出し体の前方
には、シールド掘進機から出入り自在の余掘りカッター
を設置して構成したシールド掘進機を使用し、線路部に
おいては水平姿勢のシールド掘進機で掘進を行い、駅部
へのすり付け区間では徐々に押し出し体を掘進機の外殻
から外部へ押し出しながら掘進機に捻りを与えつつ掘進
を行い、駅部においては鉛直姿勢のシールド掘進機で掘
進を行う、掘進姿勢の変更可能なシールドの掘進方法を
特徴としたものである。Further, in the excavating method for a shield excavator according to the present invention, a plurality of shield excavators are arranged in parallel in a direction parallel to a central axis and integrated, and a propulsion device, a segment assembling device, etc. are installed in each shield excavator. On the shield machine,
Equipped with an extruded body that takes a reaction force from the excavation wall, the extruded body of one shield excavator is arranged in a symmetrical position with the extruded body of the other shield excavator, and shield excavators are placed in front of each extruded body Using a shield excavator constructed by installing an extra excavator that can enter and exit freely, excavating with a shield excavator in a horizontal position in the track section, and gradually extruding the excavated body in the section rubbed to the station It excavates while giving a twist to the excavator while pushing it out of the outer shell of the excavator, and excavating with a shield excavator with a vertical attitude at the station, featuring a shield excavation method that can change the excavation attitude. is there.
【0007】[0007]
【本発明の実施の態様】以下図面を参照しながら本発明
の掘進姿勢の変更可能なシールド掘進機と掘進方法の実
施例について説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a shield excavator capable of changing the excavation posture and an excavation method according to the present invention will be described below with reference to the drawings.
【0008】<イ>シールド掘進機の形状。 本発明のシールド掘進機1は、通常のシールド掘進機
を、中心軸に平行方向に複数基(実施例では2基)並べ
て一体化した構成のものを採用する。各シールド掘進機
1は通常の掘進機であるから、その前面には掘削刃3を
設置し、その内部には推進ジャッキを中心とした推進装
置、およびセグメントを組み立てる装置などが設置して
ある。2基の掘進機1を並べた形状であるから、掘削刃
3は前後にずらして配置するなど、掘削刃3の回転に支
障がないように構成してある。掘進機1の掘削刃3に
は、前面の余掘りを行うためのコピーカッター7を設け
る。<A> Shape of shield machine The shield machine 1 of the present invention employs a structure in which a plurality of (two in the embodiment) normal shield machines are arranged and integrated in a direction parallel to the central axis. Since each shield excavator 1 is a normal excavator, an excavation blade 3 is installed on the front surface thereof, and a propulsion device centering on a propulsion jack, a device for assembling segments, and the like are installed inside the excavation blade 3. Since the two excavators 1 are arranged side by side, the excavating blades 3 are arranged so as to be shifted back and forth so as not to hinder the rotation of the excavating blades 3. The excavating blade 3 of the excavator 1 is provided with a copy cutter 7 for excavating the front surface.
【0009】<ロ>押し出し体。 各シールド掘進機1には、掘進機1の外殻を出入りして
中心から円周方向へ押し出しが可能な、押し出し体2を
設置する。押し出し体2はほぼ6面体のブロックであ
り、その押し出し面のみが外殻の形状と同一の曲率を持
つ円弧状に形成してある。この押し出し体2を押し出す
と、掘削直後のトンネル壁面から反力を取って、シール
ド掘進機1に反対方向への回転力を与えることができ
る。<B> Extruded body. Each shield machine 1 is provided with an extruded body 2 capable of moving in and out of the outer shell of the machine 1 and extruding from the center in the circumferential direction. The extruded body 2 is a substantially hexahedral block, and only the extruded surface is formed in an arc shape having the same curvature as the outer shell. When the extruded body 2 is extruded, a reaction force is taken from the tunnel wall surface immediately after the excavation, and a rotational force in the opposite direction can be given to the shield machine 1.
【0010】<ハ>押し出し体2の配置。 押し出し体2は任意の位置に設置するのではなく、一方
のシールド掘進機1の押し出し体2を、他方のシールド
掘進機1の押し出し体2とは対称位置に配置する。した
がって両側の押し出し体2を押し出せば、シールド掘進
機1には押し出し方向と反対方向の回転力を与えること
ができる。<C> Arrangement of the extruded body 2 The extruded body 2 is not installed at an arbitrary position, and the extruded body 2 of one shield excavator 1 is arranged at a position symmetrical to the extruded body 2 of the other shield excavator 1. Therefore, if the extruding bodies 2 on both sides are extruded, the shield machine 1 can be given a rotational force in the direction opposite to the extruding direction.
【0011】<ニ>余掘りカッター。 各押し出し体2の前方にはさらに、シールド掘進機1の
外殻から出入り自在の余掘りカッター5を設置する。こ
の余掘りカッター5は例えば掘削円盤の一部を外殻から
露出させる構造を採用することができる。押し出し体2
は、余掘りカッター5で掘削した跡に位置しているか
ら、掘進中にも露出状態を維持して壁面を加圧しならが
前進を続けることができる。<D> Excavation cutter. In front of each extruded body 2, there is further provided an overcut cutter 5 which can freely enter and exit from the outer shell of the shield machine 1. The overcutting cutter 5 can adopt, for example, a structure in which a part of the excavating disk is exposed from the outer shell. Extruded body 2
Is located at the mark of the excavation by the excavation cutter 5, so that it is possible to keep the exposed state even during the excavation and press the wall surface to continue the forward movement.
【0012】[0012]
【施工方法】次に上記のシールド掘進機1を使用した路
線部のトンネルと駅部の掘削例について説明する。[Construction method] Next, a description will be given of an example of excavation of a tunnel and a station on a route using the shield machine 1.
【0013】<イ>路線部の掘削。 シールド掘進機1を水平に配置した姿勢で掘進を行い、
その後方ではセグメント4を組み立ててトンネルを構築
する。その際には掘進機1前面の掘削刃3によって先端
の掘削を行い、押し出し体2、余掘りカッター5はシー
ルド掘進機1の内部に収納してある。<A> Excavation of the route. Excavation is performed with the shield excavator 1 placed horizontally.
On the rear side, segment 4 is assembled to construct a tunnel. At this time, the excavation of the tip is performed by the excavating blade 3 on the front surface of the excavator 1, and the extruded body 2 and the extra excavator 5 are stored inside the shield excavator 1.
【0014】<ロ>駅部への接近位置の掘削。 駅部への距離が近付いてきたら、掘進機1前面の掘削刃
3からコピーカッター7を突き出し余掘り6を行う。同
時にこれと平行して押し出し体2と余掘りカッター5を
外殻から序々に外側に向けて押し出す。2基の押し出し
体2が反対方向に押し出されるから、水平の姿勢であっ
たシールド掘進機1はその反力を受けて徐々に一方が下
がり、他方が上がり始める。押し出し体2は、その前部
に位置する余掘りカッター5によって掘削の完了した位
置で地盤を押し付ける構成であるから、シールド掘進機
1の掘進中であっても押し出しを続けることができる。
余掘りした跡は、シールド掘進機1の内部からモルタル
などを注入して充填して行く。<B> Excavation of the approach position to the station. When the distance to the station portion is approaching, the copy cutter 7 is protruded from the excavating blade 3 on the front surface of the excavator 1 and extra dug 6 is performed. At the same time, the extruded body 2 and the excavation cutter 5 are sequentially pushed outward from the outer shell in parallel with this. Since the two extruded bodies 2 are extruded in opposite directions, the shield excavator 1 which has been in a horizontal posture receives one of the reaction forces, and one of the excavators gradually descends and the other begins to ascend. Since the extruded body 2 is configured to press the ground at a position where the excavation is completed by the excavation cutter 5 located at the front part thereof, the extruded body 2 can continue to extrude even while the shield excavator 1 is excavating.
Excavated traces are filled by injecting mortar or the like from the inside of the shield machine 1.
【0015】<ハ>駅部での掘削。 水平の姿勢であったシールド掘進機1が徐々に立上が
り、やがて鉛直の姿勢となる。そうなれば押し出し体2
によって得られる反力は不要であるから、余掘りカッタ
ー5とともにシールド掘進機1の外郭内に収納する。図
3に示すような駅部におけるホーム8、地上への連絡通
路9などの構築は公知の方法で行う。<C> Excavation at the station. The shield machine 1 having been in the horizontal posture gradually rises, and eventually becomes the vertical posture. Extruded body 2
Since the reaction force obtained by the above is unnecessary, it is stored in the outer shell of the shield machine 1 together with the surplus cutter 5. The construction of the platform 8 in the station section as shown in FIG. 3, the communication path 9 to the ground, and the like are performed by a known method.
【0016】[0016]
【本発明の効果】本発明の掘進姿勢の変更可能なシール
ド掘進機1と掘進方法は以上説明したようになるから次
のような効果を得ることができる。 <イ>立坑の施工を行わずに、シールド掘進機1の一連
の作業によって、線路部と駅部との構築を行うことがで
きる。 <ロ>幅の狭い用地において駅の構築が可能であり、経
済的である。 <ハ>押し出し体2は、その前部に配置した余掘りカッ
ター5の掘削跡において地山を加圧しているから、シー
ルド掘進機1の掘進中にも加圧状態を継続することがで
き、きわめて効率的に機体に捻りを与えることができ
る。As described above, the shield excavator 1 and the excavation method of the present invention capable of changing the excavation posture have the following effects. <B> The railway section and the station section can be constructed by a series of operations of the shield machine 1 without constructing the shaft. <B> Stations can be built on narrow land, which is economical. <C> Since the extruded body 2 presses the ground at the excavation site of the extra excavation cutter 5 disposed at the front part thereof, the extruded body 2 can continue the pressurized state even during the excavation of the shield excavator 1, The torsion can be given to the body very efficiently.
【図1】本発明の掘進姿勢の変更可能なシールド掘進機
1の説明図FIG. 1 is an explanatory view of a shield excavator 1 according to the present invention, which is capable of changing the excavation posture.
【図2】掘進方法の実施例の説明図FIG. 2 is an explanatory view of an embodiment of a digging method.
【図3】駅部の形状の説明図FIG. 3 is an explanatory view of the shape of a station.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 尾高 義夫 東京都新宿区西新宿一丁目25番1号 大成 建設株式会社内 (72)発明者 藤井 茂男 愛知県知多市北浜町11番1号 石川島播磨 重工業株式会社愛知工場内 (72)発明者 北山 仁志 愛知県知多市北浜町11番1号 石川島播磨 重工業株式会社愛知工場内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshio Odaka 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Shigeo Fujii 111-1 Kitahama-cho, Chita-shi, Aichi Prefecture Heavy Industry Co., Ltd. Aichi Factory (72) Inventor Hitoshi Kitayama 11-1 Kitahama-cho, Chita City, Aichi Prefecture Harima Ishikawajima Heavy Industries Co., Ltd. Aichi Factory
Claims (3)
数基並べて一体化し、 各シールド掘進機には推進装置、セグメント組み立て装
置などを設置し、 各シールド掘進機には、掘削壁面から反力を取る押し出
し体を装備し、 一方のシールド掘進機の押し出し体を、他方のシールド
掘進機の押し出し体とは対称位置に配置して構成した、 掘進姿勢の変更可能なシールド掘進機1. A plurality of shield excavators are arranged and integrated in a direction parallel to a central axis, and a propulsion device, a segment assembling device, etc. are installed in each shield excavator, and each shield excavator is provided with a counterpart from an excavation wall surface. A shield excavator with a changeable excavation posture, which is equipped with an extruding body that takes power and the extruded body of one shield excavator is arranged symmetrically to the extruded body of the other shield excavator
数基並べて一体化し、 各シールド掘進機には推進装置、セグメント組み立て装
置などを設置し、 各シールド掘進機には、掘削壁面から反力を取る押し出
し体を装備し、 一方のシールド掘進機の押し出し体を、他方のシールド
掘進機の押し出し体とは対称位置に配置し、 各押し出し体の前方には、シールド掘進機から出入り自
在の余掘りカッターを設置して構成した、 掘進姿勢の変更可能なシールド掘進機2. A plurality of shield excavators are arranged and integrated in a direction parallel to a central axis, and a propulsion device, a segment assembling device, etc. are installed in each shield excavator, and each shield excavator is provided with an anti-drag from an excavation wall surface. Equipped with an extruding body that takes force, the extruded body of one shield excavator is placed symmetrically with the extruded body of the other shield excavator, and in front of each extruded body, it is possible to enter and exit the shield excavator freely. A shield excavator that can be changed in excavation posture and configured with an extra excavator
数基並べて一体化し、 各シールド掘進機には推進装置、セグメント組み立て装
置などを設置し、 各シールド掘進機には、掘削壁面から反力を取る押し出
し体を装備し、 一方のシールド掘進機の押し出し体を、他方のシールド
掘進機の押し出し体とは対称位置に配置し、 各押し出し体の前方には、シールド掘進機から出入り自
在の余掘りカッターを設置して構成したシールド掘進機
を使用し、 線路部においては水平姿勢のシールド掘進機で掘進を行
い、 駅部へのすり付け区間では徐々に押し出し体を掘進機の
外殻から外部へ押し出しながら掘進機に捻りを与えつつ
掘進を行い、 駅部においては鉛直姿勢のシールド掘進機で掘進を行
う、 掘進姿勢の変更可能なシールドの掘進方法。3. A plurality of shield excavators are arranged and integrated in a direction parallel to the central axis, and a propulsion device and a segment assembling device are installed in each shield excavator. Equipped with an extruding body that takes force, the extruded body of one shield excavator is placed symmetrically with the extruded body of the other shield excavator, and in front of each extruded body, it is possible to enter and exit the shield excavator freely. Using a shield excavator constructed by installing an extra excavator, excavating with a shield excavator in a horizontal position in the track section, and gradually extruding the body from the outer shell of the excavator in the section rubbed to the station A method of excavating a shield that can be changed in excavation posture, excavating while extruding to the outside while twisting the excavator, and excavating at a station using a shield excavator with a vertical posture.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11526597A JPH10292776A (en) | 1997-04-17 | 1997-04-17 | Shield machine whose posture can be changed and shielding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11526597A JPH10292776A (en) | 1997-04-17 | 1997-04-17 | Shield machine whose posture can be changed and shielding method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH10292776A true JPH10292776A (en) | 1998-11-04 |
Family
ID=14658399
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11526597A Pending JPH10292776A (en) | 1997-04-17 | 1997-04-17 | Shield machine whose posture can be changed and shielding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH10292776A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006125036A (en) * | 2004-10-28 | 2006-05-18 | Taisei Corp | Ramp forming method and ramp forming apparatus |
JP2007284895A (en) * | 2006-04-13 | 2007-11-01 | Toda Constr Co Ltd | Underground railway construction method |
-
1997
- 1997-04-17 JP JP11526597A patent/JPH10292776A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006125036A (en) * | 2004-10-28 | 2006-05-18 | Taisei Corp | Ramp forming method and ramp forming apparatus |
JP2007284895A (en) * | 2006-04-13 | 2007-11-01 | Toda Constr Co Ltd | Underground railway construction method |
JP4731387B2 (en) * | 2006-04-13 | 2011-07-20 | 戸田建設株式会社 | How to build a subway |
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