JP3155980B2 - Tunnel joining method and equipment - Google Patents
Tunnel joining method and equipmentInfo
- Publication number
- JP3155980B2 JP3155980B2 JP25755795A JP25755795A JP3155980B2 JP 3155980 B2 JP3155980 B2 JP 3155980B2 JP 25755795 A JP25755795 A JP 25755795A JP 25755795 A JP25755795 A JP 25755795A JP 3155980 B2 JP3155980 B2 JP 3155980B2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- water
- tunnel
- cutting
- segment
- 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 - Lifetime
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、既設シールドトン
ネルと新設シールドトンネルの接合工法および装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for joining an existing shield tunnel and a new shield tunnel.
【０００２】[0002]
【従来の技術】新設シールドトンネルを既設シールドト
ンネルに接合する装置として、例えば図９に示すよう
に、新設トンネルを掘削するシールド掘削機１に切削リ
ング16で構成する切削手段と縮径するカッターヘッド６
を設けたものがあり、この切削リング16の内側にカッタ
ーヘッド６を縮径させた状態にして接続し、カッターヘ
ッド６をモーター17などによる駆動回転手段で回転させ
ながら前進させ、これにより切削リング16も回転させな
がら前進させて既設トンネルの側面を切削開口し、その
先端を既設セグメント13に食い込ませることで、新設ト
ンネルを既設トンネルに直接接合する工法がある。2. Description of the Related Art As an apparatus for joining a new shield tunnel to an existing shield tunnel, for example, as shown in FIG. 9, a shield excavator 1 for excavating a new tunnel is provided with a cutting means comprising a cutting ring 16 and a cutter head for reducing the diameter. 6
The cutter head 6 is connected to the inside of the cutting ring 16 in a state where the diameter thereof is reduced, and the cutter head 6 is advanced by rotating the cutter head 6 by a driving rotating means such as a motor 17 so that the cutting ring 16 There is a method in which the new tunnel is directly joined to the existing tunnel by rotating the 16 and moving it forward to cut and open the side surface of the existing tunnel and cutting the tip into the existing segment 13.
【０００３】かかる接合工法においては、切削リング16
により既設トンネルセグメント13を切削貫入する場合、
切削によるセグメント13の変形・偏平により切削リング
16とセグメント13とがせらないようにリング外径より余
裕をとって切削するため、貫入時に切削リング16とセグ
メント13との間に空隙が生じる。そこで、この空隙を止
水するために、リング外周部などに止水袋などによる止
水手段を装備し、リング単体と既設セグメントとが接合
した状態で、該止水袋に充填材を充填して袋を膨張さ
せ、これにより空隙を埋めている。In such a joining method, a cutting ring 16 is used.
When cutting through the existing tunnel segment 13 by
Cutting ring due to deformation and flattening of segment 13 due to cutting
Since the cutting is performed with a margin larger than the outer diameter of the ring so that the segment 16 and the segment 13 are not separated, a gap is generated between the cutting ring 16 and the segment 13 at the time of penetration. Therefore, in order to stop water in this gap, a water stopping means such as a water stopping bag is provided on the outer peripheral portion of the ring or the like, and a filling material is filled in the water stopping bag in a state where the ring alone and the existing segment are joined. The bag is inflated to fill the void.
【０００４】[0004]
【発明が解決しようとする課題】既設セグメントの切削
開口面は、セグメントの側面に形成されることから、曲
面に形成されることとなり、切削リングの停止位置によ
って、切削リングの切削開口面に対する接合部分が異な
ってくる。そのため、任意の位置で切削リングを停止し
た場合に対処できるよう、どの位置で停止してもセグメ
ントの切削開口面との間に止水袋が介装されるように、
リングの外周の広範囲にわたって止水袋を装備する必要
があり、大掛かりなものとなる。Since the cutting opening surface of the existing segment is formed on the side surface of the segment, it is formed into a curved surface. Depending on the stop position of the cutting ring, the cutting ring is joined to the cutting opening surface. The parts are different. Therefore, in order to cope with the case where the cutting ring is stopped at any position, so that a water blocking bag is interposed between the cutting opening surface of the segment regardless of where it is stopped,
It is necessary to equip a waterproof bag over a wide area of the outer periphery of the ring, which is large.
【０００５】また、止水袋は回転するリングの外周に装
備されるため、切削した既設セグメント面との接触等に
より止水袋が損傷する可能性が高く、リングの収納時に
は外周部の防護が必要となり、しかも、この防護材とし
ては止水袋の充填による膨張を妨げない材質のものとし
なければならない。[0005] Further, since the waterproof bag is provided on the outer periphery of the rotating ring, there is a high possibility that the waterproof bag is damaged due to contact with the cut existing segment surface or the like. It is necessary, and the protective material must be made of a material that does not hinder the expansion due to the filling of the waterproof bag.
【０００６】なお、切削リングは、これを回転させるた
めのカッターヘッドの回転を制御することにより既設セ
グメントの切削開口面に対して予め設定された方向・位
置に停止させることが可能であり、この場合は、既設セ
グメントの切削開口面に対応させて、切削リングの外周
の所定位置に止水袋を装着すればよく、広範囲に装着す
る必要はないが、かかる場合であっても、止水袋は回転
するリングの外周に装着されるものであるから、既設セ
グメントの切削面との回転による接触による損傷のおそ
れはある。The cutting ring can be stopped at a preset direction and position with respect to the cutting opening surface of the existing segment by controlling the rotation of the cutter head for rotating the cutting ring. In such a case, a waterproof bag may be attached at a predetermined position on the outer periphery of the cutting ring in correspondence with the cutting opening surface of the existing segment, and it is not necessary to attach the waterproof bag over a wide area. Is mounted on the outer circumference of the rotating ring, there is a risk of damage due to contact due to rotation of the existing segment with the cutting surface.
【０００７】本発明の目的は前記従来例の不都合を解消
し、リングを前進させて既設セグメントに切削貫入しセ
グメントに接合して新設トンネルと既設トンネルとを接
合し、リングの外周に止水袋等による止水手段を装着す
る場合に、これが既設セグメントの切削面と回転状態で
接触して損傷することを防止し、装着範囲も所定の限定
されたもので足りるトンネル接合工法および装置を提供
することにある。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned disadvantages of the prior art, to advance a ring to cut and penetrate an existing segment and join the segment to join a new tunnel and an existing tunnel. The present invention provides a tunnel joining method and a device that prevents a water stoppage means, such as a water stop means, from being brought into contact with a cutting surface of an existing segment in a rotating state and being damaged, and also requires a limited installation range. It is in.
【０００８】[0008]
【課題を解決するための手段】本発明は、前記目的を達
成するため、第１に新設トンネルを掘削するシールド掘
削機に備えた掘削手段を有するリングを備え、このリン
グで既設トンネルのセグメントに切削貫入して新設トン
ネルを既設トンネルに接合する接合工法において、前記
リングを、スキンプレートの内側に位置し回転して既設
トンネルのセグメントに切削貫入する切削リングと、該
切削リングの外側に位置し、回転せず、貫入した切削リ
ングと切削開口した既設セグメントとの間の隙間の止水
を図る止水手段を外周に備えた止水リングとで構成し、
切削リングを回転させながら推進させて既設トンネルの
セグメントに切削貫入して接合し、止水リングは回転さ
せずに切削リングに同期させて前進させ、止水手段をセ
グメントの切削開口面に密着することを要旨とするもの
である。In order to achieve the above object, the present invention firstly comprises a ring having excavating means provided on a shield excavator for excavating a new tunnel, and this ring is used to join a segment of an existing tunnel. In a joining method for joining a new tunnel to an existing tunnel by cutting and penetrating, the ring is positioned inside a skin plate and rotated to cut into a segment of the existing tunnel, and a cutting ring is positioned outside the cutting ring. Non-rotating, a water stop ring provided on the outer periphery with water stop means for stopping water in a gap between the penetrating cutting ring and the existing segment having the cutting opening,
The cutting ring is propelled while rotating to cut and penetrate into the existing tunnel segment and joined, and the water stop ring is advanced in synchronization with the cutting ring without rotating, and the water stop means is brought into close contact with the cutting opening surface of the segment The gist is that.
【０００９】第２に、シールド掘削機に、スキンプレー
トの内側に位置し回転して既設トンネルのセグメントに
切削貫入する切削リングと、該切削リングの外側に位置
し、回転せず、貫入した切削リングと切削開口した既設
セグメントとの間の隙間の止水を図る止水手段を外周に
備えた止水リングとで構成するリングを設けたことを要
旨とするものである。Second, the shield excavator is provided with a cutting ring which is positioned inside the skin plate and rotates to penetrate the segment of the existing tunnel, and a cutting ring which is located outside the cutting ring and does not rotate and penetrates. The gist of the present invention is to provide a ring including a water stop ring provided on the outer periphery with a water stop means for stopping water in a gap between the ring and an existing segment having a cut opening.
【００１０】第３に、止水手段は、既設セグメントの切
削開口の形状に対応する溝条を止水リングの外周部に設
け、充填材の注入により膨張する伸縮自在な止水容器を
前記溝条内に収納することを要旨とするものである。Thirdly, the water stopping means is provided with a groove corresponding to the shape of the cutting opening of the existing segment on the outer peripheral portion of the water stopping ring, and the expandable and contractible water stopping container which expands due to the injection of the filler. It is intended to be stored in the article.
【００１１】請求項１及び請求項２記載の本発明によれ
ば、既設トンネルのセグメントに貫入するリングを切削
リングと止水リングとで構成し、切削リングだけが回転
しながら推進して既設セグメントに切削貫入して接合
し、止水リングは回転しないようにしたから、外周に装
着した止水手段がセグメントの切削開口面と接触して損
傷することを防止でき、また、この止水リングを切削リ
ングと同期させて前進することで、切削リングが既設セ
グメントに切削貫入した状態で止水手段が切削開口面に
対応して密着し、止水を図る。According to the first and second aspects of the present invention, the ring penetrating into the segment of the existing tunnel is constituted by the cutting ring and the water blocking ring, and only the cutting ring is propelled while rotating, so that the existing segment is cut off. Since the water stop ring does not rotate, the water stop means attached to the outer periphery can be prevented from contacting the cutting opening surface of the segment and being damaged. By advancing in synchronization with the cutting ring, the water stopping means is brought into close contact with the cutting opening surface in a state where the cutting ring penetrates the existing segment for cutting, and water is stopped.
【００１２】さらに、切削リングは止水リングの内側に
位置するから、切削リングを回転させる回転駆動機構に
かかる負荷を小さくできる。Further, since the cutting ring is located inside the water blocking ring, the load on the rotary drive mechanism for rotating the cutting ring can be reduced.
【００１３】請求項３記載の本発明によれば、前記作用
に加えて、止水手段は、既設セグメントの切削開口の形
状に対応する溝条を止水リングの外周部に設け、充填材
の注入により膨張する伸縮自在な止水容器を前記溝条内
に収納し、充填材を容器内に充填することで注入圧によ
って容器が既設セグメントの切削開口面に密着し、確実
に止水できる。According to the third aspect of the present invention, in addition to the above operation, the water stopping means provides a groove on the outer peripheral portion of the water stopping ring, the groove corresponding to the shape of the cutting opening of the existing segment. An elastic water-stopping container that expands by injection is housed in the groove, and a filling material is filled in the container, whereby the container is brought into close contact with the cutting opening surface of the existing segment by injection pressure, and water can be reliably stopped.
【００１４】[0014]
【発明の実施の形態】以下、図面について本発明の実施
形態を詳細に説明する。図１は本発明のトンネル接合装
置による接合工法の第１工程を示す縦断側面図で、本発
明の接合装置はシールド掘削機１に装備されるものであ
り、スキンプレート２の内側に位置させて止水リング３
をスライド自在に装着し、該止水リング３のさらに内側
に切削リング４をスライド自在に組合わせ、この止水リ
ング３と切削リング４とでリングを構成する。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional side view showing a first step of a joining method using a tunnel joining apparatus according to the present invention. The joining apparatus according to the present invention is mounted on a shield excavator 1 and is positioned inside a skin plate 2. Water stop ring 3
Is mounted slidably, and a cutting ring 4 is slidably assembled further inside the water stop ring 3, and the water stop ring 3 and the cutting ring 4 constitute a ring.
【００１５】切削リング４は図８にも示すように、先端
に切削ビット５等の切削手段を備え、内周面にカッター
ヘッド６と嵌合するための凹部７が所定位置に設けてあ
り、切削ビット５を含む先端部が止水リング３の先端よ
りも前方に突出し、先端部よりも後方部の外側が縮径さ
れて、この縮径された部分に止水リング３が平行に組み
合わさる。そして、止水リング３と切削リング４との間
の隙間に土砂シール材12を介装する。As shown in FIG. 8, the cutting ring 4 is provided with cutting means such as a cutting bit 5 at the tip, and a concave portion 7 for fitting with the cutter head 6 is provided at a predetermined position on the inner peripheral surface. The distal end including the cutting bit 5 protrudes forward from the distal end of the water stop ring 3, and the outside of the rear part is reduced in diameter from the distal end, and the water stop ring 3 is combined in parallel with the reduced diameter portion. . Then, the earth and sand sealing material 12 is interposed in the gap between the water stop ring 3 and the cutting ring 4.
【００１６】止水リング３はスキンプレート２の内側に
設けた保持部８で支持され、回転せず、切削リング４の
押し出し速度に同期して推進するように、ジャッキ等の
押し出し機構を接続したもので、先端の外周面に、既設
トンネルのセグメントの切削開口面の形状に対応する位
置に止水手段を設けた。The water stop ring 3 is supported by a holding portion 8 provided inside the skin plate 2, and is connected to an extrusion mechanism such as a jack so as not to rotate and to be propelled in synchronization with the extrusion speed of the cutting ring 4. The water stopping means is provided on the outer peripheral surface of the tip at a position corresponding to the shape of the cutting opening surface of the segment of the existing tunnel.
【００１７】該止水手段は、止水リング３の外周面に形
成した溝条９と、この溝条９の内部に収納した伸縮自在
な止水容器10とで構成し、止水容器10は充填材の注入圧
により膨張するように形成してあり、例えばゴム等の材
質を用いて柔軟性のある袋状に形成した。The water stopping means comprises a groove 9 formed on the outer peripheral surface of the water stopping ring 3 and an elastic water stopping container 10 housed inside the groove 9. It was formed so as to expand by the injection pressure of the filler, and was formed into a flexible bag shape using a material such as rubber.
【００１８】前記止水容器10に開口する充填材の注入管
11を止水リング３の長さ方向に設け、該注入管11の他端
に充填機を接続し、また、止水リング３の外周部の裏込
め或いは止水容器10が止水機能を発揮するまで開口周囲
の補足注入を行うための注入管を数本設ける。Injection pipe for filling material opening in the watertight container 10
11 is provided in the length direction of the water stop ring 3, a filling machine is connected to the other end of the injection pipe 11, and the outer periphery of the water stop ring 3 is backed or the water stop container 10 exhibits a water stop function. Several injection tubes for supplementary injection around the opening are provided.
【００１９】また、図示は省略するが、スキンプレート
２と止水リング３との間、止水リング３と隔壁との間か
ら土砂がシールド掘削機１内に浸入するのを防ぐための
土砂シール材を保持部８に設けた。Although not shown, the earth and sand seal for preventing earth and sand from entering the shield excavator 1 from between the skin plate 2 and the water stop ring 3 and between the water stop ring 3 and the partition wall. The material was provided on the holding unit 8.
【００２０】なお、カッターヘッド６は切削リング４と
結合するときは、シールド機掘進のときより縮径するよ
う制御する機構を有し、また、シールド掘削機には、掘
進方向に対してカッターヘッド６を前後に移動する機構
を設けた。When the cutter head 6 is connected to the cutting ring 4, the cutter head 6 has a mechanism for controlling the diameter of the cutter excavator to be smaller than that during the excavation of the shield machine. 6 is provided with a mechanism for moving back and forth.
【００２１】次に、かかる接合装置を使用してトンネル
を接合する工法を説明する。図１のように、新設トンネ
ルを掘削するシールド掘削機１を既設トンネルのセグメ
ント13に向けて掘進して、接合部周辺の地盤15に注入管
14から薬液を注入して水止を目的として地盤改良を行い
（第１工程）、シールド掘削機１を既設トンネルのセグ
メント13の直前に停止する（第２工程、図２参照）この
状態では、カッターヘッド６は拡径して切削リング４及
び止水リング３の前方にある。Next, a method of joining a tunnel by using such a joining apparatus will be described. As shown in FIG. 1, a shield excavator 1 for excavating a new tunnel is excavated toward a segment 13 of an existing tunnel, and is injected into a ground 15 around a joint.
Inject chemicals from 14 to improve the ground for the purpose of stopping water (first step), and stop the shield excavator 1 immediately before the segment 13 of the existing tunnel (second step, see FIG. 2). The cutter head 6 expands in diameter and is located in front of the cutting ring 4 and the water stop ring 3.
【００２２】第３工程として図３に示すように、カッタ
ーヘッド６を縮径するとともに後退させて切削リング４
の内側に位置させ、凹部７を介して切削リング４と嵌合
する。そして、地盤改良を行った地盤15内のスキンプレ
ート２周りに注入管から補足注入する。As a third step, as shown in FIG. 3, the cutter head 6 is reduced in diameter and retracted to cut the cutting ring 4.
And fitted with the cutting ring 4 via the recess 7. Then, supplementary injection is performed from the injection pipe around the skin plate 2 in the ground 15 where the ground has been improved.
【００２３】次に第４工程として図４に示すように、カ
ッターヘッド６の回転駆動機構を作動して、この回転駆
動力により切削リング４を回転させながら前方に押し出
していく。Next, as a fourth step, as shown in FIG. 4, the rotary drive mechanism of the cutter head 6 is operated to push the cutting ring 4 forward while rotating the cutting ring 4 by this rotary driving force.
【００２４】切削リング４を、カッターヘッド６がセグ
メント13に接するまでの所定長さだけ掘進させたなら
ば、カッターヘッド６と切削リング４の嵌合を解除し、
カッターヘッド６を後退させ、この後退位置で切削リン
グ４と再び嵌合し、次いでカッターヘッド６の回転駆動
機構を作動して切削リング４を回転させながら押し出し
ていき、先端の切削ビット５で既設トンネルのセグメン
ト13の中央部を切削し貫入する（第５工程、図５参
照）。When the cutting ring 4 has been dug by a predetermined length until the cutter head 6 contacts the segment 13, the engagement between the cutter head 6 and the cutting ring 4 is released,
The cutter head 6 is retracted, and the cutter head 6 is re-engaged with the cutting ring 4 at the retracted position. Then, the cutting ring 4 is pushed out while rotating the cutting ring 4 by operating the rotation driving mechanism of the cutter head 6, and the cutting bit 5 at the tip is used. The central part of the tunnel segment 13 is cut and penetrated (fifth step, see FIG. 5).
【００２５】切削リング４を所定長さだけ掘進させたな
らば、第６工程として図６に示すように、カッターヘッ
ド６と切削リング４の嵌合を解除し、カッターヘッド６
を再度後退させ、切削リング４と嵌合させ、所定長さだ
け前進して切削ビット５でセグメント13をさらに切削
し、開口を広げていく。When the cutting ring 4 has been dug by a predetermined length, as shown in FIG. 6, as a sixth step, the engagement between the cutter head 6 and the cutting ring 4 is released, and the cutter head 6
Is retracted again, fitted with the cutting ring 4 and advanced by a predetermined length to further cut the segment 13 with the cutting bit 5 to widen the opening.
【００２６】このようにしてカッターヘッド６の後退、
切削リング４との嵌合、回転押出しを繰り返し、切削リ
ング４を前進させて切削ビット５でセグメント13を切削
開口し、図７に示すようにセグメント13の二次覆工部を
含む所定の位置まで切削したならば、貫入を停止する。In this manner, the cutter head 6 is retracted,
The fitting with the cutting ring 4 and the rotary extrusion are repeated, the cutting ring 4 is advanced, the segment 13 is cut and opened by the cutting bit 5, and a predetermined position including the secondary lining portion of the segment 13 as shown in FIG. After cutting to the end, stop the penetration.
【００２７】前記のようにして切削リング４が前進する
際、止水リング３は切削リング４の外側に位置して、回
転はせず、切削リング４の押し出し速度に同調した速度
でジャッキ等の押し出し機構により同時に推進する。ま
た、切削リング４は止水リング３の内側に位置するか
ら、切削リング４の前進時に回転駆動機構に加わる負荷
を小さくできる。When the cutting ring 4 moves forward as described above, the water stop ring 3 is located outside the cutting ring 4 and does not rotate, but does not rotate at a speed synchronized with the pushing speed of the cutting ring 4. Propelled at the same time by the pushing mechanism. Further, since the cutting ring 4 is located inside the water stop ring 3, the load applied to the rotary drive mechanism when the cutting ring 4 advances can be reduced.
【００２８】推進が終了した時点で、止水リング３に設
けてある止水容器10は、セグメント13の切削開口面に対
応する位置にあり、この状態で、注入管11から止水容器
10にモルタル、水等の充填材を注入して止水容器10を膨
張させれば、注入圧により止水容器10が切削開口面に密
着して、止水を図り、外部からの地下水や土砂の流入を
防止する。At the time when the propulsion is completed, the water stop container 10 provided on the water stop ring 3 is located at a position corresponding to the cutting opening surface of the segment 13.
If the waterstop container 10 is expanded by pouring a filler such as mortar, water, etc. into the waterstop 10, the waterstop container 10 comes into close contact with the cutting opening surface due to the injection pressure, and water is stopped. Prevent the inflow of water.
【００２９】[0029]
【発明の効果】以上述べたように本発明のトンネル接合
工法および装置は、既設トンネルのセグメントに切削貫
入するリングを切削リングと止水リングとで構成し、切
削リングを回転させながら前進させて既設セグメントに
接合し、止水リングは回転しないようにしたから、この
止水リングの外周に装着した止水手段がセグメントの切
削面と接触して損傷することを防止できる。As described above, according to the tunnel joining method and apparatus of the present invention, a ring that cuts and penetrates an existing tunnel segment is constituted by a cutting ring and a water stop ring, and the cutting ring is advanced while rotating. Since the water stop ring is prevented from rotating by being joined to the existing segment, it is possible to prevent the water stop means mounted on the outer periphery of the water stop ring from being in contact with the cut surface of the segment and being damaged.
【００３０】また、切削リングは止水リングの内側に位
置するから、切削リングを回転させる回転駆動機構にか
かる負荷を小さくできる。Further, since the cutting ring is located inside the water blocking ring, the load on the rotary drive mechanism for rotating the cutting ring can be reduced.
【００３１】さらに、止水手段は、既設セグメントの切
削開口の形状に対応する溝条を止水リングの外周部に設
け、充填材の注入により膨張する伸縮自在な止水容器を
前記溝条内に収納し、充填材を容器内に充填することで
注入圧によって容器が既設セグメントの切削開口面に密
着し、確実に止水できるものである。Further, the water stopping means is provided with a groove corresponding to the shape of the cutting opening of the existing segment on the outer peripheral portion of the water stopping ring, and expands and contracts the water stopping container which is expandable by injection of the filler. By filling the filling material into the container, the container is brought into close contact with the cutting opening surface of the existing segment by the injection pressure, and water can be reliably stopped.
【図１】本発明のトンネル接合工法の第１工程を示す縦
断側面図である。FIG. 1 is a vertical sectional side view showing a first step of a tunnel junction method according to the present invention.
【図２】本発明のトンネル接合工法の第２工程を示す縦
断側面図である。FIG. 2 is a longitudinal side view showing a second step of the tunnel junction method of the present invention.
【図３】本発明のトンネル接合工法の第３工程を示す縦
断側面図である。FIG. 3 is a vertical sectional side view showing a third step of the tunnel joining method of the present invention.
【図４】本発明のトンネル接合工法の第４工程を示す縦
断側面図である。FIG. 4 is a vertical sectional side view showing a fourth step of the tunnel bonding method according to the present invention.
【図５】本発明のトンネル接合工法の第５工程を示す縦
断側面図である。FIG. 5 is a vertical sectional side view showing a fifth step of the tunnel bonding method according to the present invention.
【図６】本発明のトンネル接合工法の第６工程を示す縦
断側面図である。FIG. 6 is a vertical sectional side view showing a sixth step of the tunnel joining method of the present invention.
【図７】本発明のトンネル接合工法の第７工程を示す縦
断側面図である。FIG. 7 is a vertical sectional side view showing a seventh step of the tunnel junction method of the present invention.
【図８】本発明のトンネル接合工法の第７工程の状態で
の要部の縦断側面図である。FIG. 8 is a vertical sectional side view of a main part in a state of a seventh step of the tunnel junction method of the present invention.
【図９】従来のトンネル接合工法を示す縦断側面図であ
る。FIG. 9 is a vertical sectional side view showing a conventional tunnel joining method.
１…シールド掘削機 ２…スキンプレート ３…止水リング ４…切削リング ５…切削ビット ６…カッターヘッド ７…凹部 ８…保持部 ９…溝条 10…止水容器 11…注入管 12…土砂シール材 13…セグメント 14…注入管 15…地盤 16…切削リング 17…モーター DESCRIPTION OF SYMBOLS 1 ... Shield excavator 2 ... Skin plate 3 ... Water stopping ring 4 ... Cutting ring 5 ... Cutting bit 6 ... Cutter head 7 ... Recessed part 8 ... Holding part 9 ... Groove 10 ... Water stopping container 11 ... Injection pipe 12 ... Sand seal Material 13 Segment 14 Injection pipe 15 Ground 16 Cutting ring 17 Motor
フロントページの続き (73)特許権者 000140982 株式会社間組 東京都港区北青山２丁目５番８号 (73)特許権者 000230010 ジオスター株式会社 東京都港区芝４丁目２番３号 (72)発明者 高橋 和夫 東京都千代田区大手町二丁目６番２号 東京都下水道サービス株式会社内 (72)発明者 矢部 利幸 東京都千代田区大手町二丁目６番２号 東京都下水道サービス株式会社内 (72)発明者 青木 茂人 東京都千代田区大手町二丁目６番２号 東京都下水道サービス株式会社内 (72)発明者 渡辺 徹 神奈川県大和市下鶴間2570番地４ 西松 建設株式会社 技術研究所内 (72)発明者 磯 陽夫 神奈川県大和市下鶴間2570番地４ 西松 建設株式会社 技術研究所内 (72)発明者 木戸 義和 東京都新宿区津久戸町２番１号 株式会 社熊谷組 東京本社内 (72)発明者 山森 規安 東京都新宿区津久戸町２番１号 株式会 社熊谷組 東京本社内 (72)発明者 鈴木 実 東京都港区芝浦一丁目２番３号 清水建 設株式会社内 (72)発明者 関 伸司 東京都港区芝浦一丁目２番３号 清水建 設株式会社内 (72)発明者 早川 雅彦 東京都港区北青山二丁目５番８号 株式 会社間組内 (72)発明者 萩原 勉 東京都港区北青山二丁目５番８号 株式 会社間組内 (72)発明者 藤野 豊 東京都港区芝四丁目２番３号 ジオスタ ー株式会社内 (72)発明者 田中 秀樹 東京都港区芝四丁目２番３号 ジオスタ ー株式会社内 (56)参考文献 特開 平３−33397（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) E21D 9/06 301 Continued on the front page (73) Patent holder 000140982 Ma-gumi Co., Ltd. 2-5-8 Kita-Aoyama, Minato-ku, Tokyo (73) Patent holder 000230010 Geostar Co., Ltd. 4-2-2 Shiba, Minato-ku, Tokyo (72) Invention Person Kazuo Takahashi 2-6-1, Otemachi, Chiyoda-ku, Tokyo Inside Tokyo Sewerage Service Co., Ltd. (72) Inventor Toshiyuki Yabe 2-6-1, Otemachi, Chiyoda-ku, Tokyo Inside Tokyo Sewerage Service Co., Ltd. (72 Inventor Shigeto Aoki 2-6-1 Otemachi, Chiyoda-ku, Tokyo Tokyo Metropolitan Sewerage Service Co., Ltd. (72) Inventor Toru Watanabe 2570-4 Shimotsuruma, Yamato City, Kanagawa Prefecture Nishimatsu Construction Co., Ltd. ) Inventor Hiroo Iso 2570-4 Shimotsuruma, Yamato-shi, Kanagawa Nishimatsu Construction Co., Ltd.Technical Research Institute (72) Inventor Yoshikazu Kido 2-1 Tsukudo-cho, Shinjuku-ku, Tokyo Co., Ltd. Noriyama Yamamori 2nd Tsukudocho, Shinjuku-ku, Tokyo No. Kumagaya Gumi Tokyo Head Office (72) Minoru Suzuki 1-3-2 Shibaura, Minato-ku, Tokyo Inside Shimizu Corporation (72) Inventor Shinji Seki 1-2-3, Shibaura, Minato-ku, Tokyo (72) Inventor Masahiko Hayakawa 2-5-8 Kitaaoyama, Minato-ku, Tokyo, Japan Intra-company group (72) Inventor Tsutomu Hagiwara 2-58 Kitaaoyama, Minato-ku, Tokyo, Japan (72) Inventor: Yutaka Fujino, 2-3-2 Shiba, Minato-ku, Tokyo Geostar Co., Ltd. (72) Inventor: Hideki Tanaka 2-3-2, Shiba, Minato-ku, Tokyo Geostar Co., Ltd. (56) References JP-A-3-33397 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) E21D 9/06 301
Claims (3)
に掘削手段を有するリングを備え、このリングで既設ト
ンネルのセグメントに切削貫入して新設トンネルを既設
トンネルに接合する接合工法において、前記リングを、
スキンプレートの内側に位置し回転して既設トンネルの
セグメントに切削貫入する切削リングと、該切削リング
の外側に位置し、回転せず、貫入した切削リングと切削
開口した既設セグメントとの間の隙間の止水を図る止水
手段を外周に備えた止水リングとで構成し、切削リング
を回転させながら推進させて既設トンネルのセグメント
に切削貫入して接合し、止水リングは回転させずに切削
リングに同期させて前進させ、止水手段をセグメントの
切削開口面に密着することを特徴とするトンネル接合工
法。1. A joining method in which a shield excavator for excavating a new tunnel is provided with a ring having excavating means, and this ring cuts and penetrates a segment of the existing tunnel to join the new tunnel to the existing tunnel.
A cutting ring positioned inside the skin plate and rotated to penetrate the segment of the existing tunnel, and a gap between the cut ring penetrated and non-rotated outside the cutting ring and the existing segment having a cut opening A water-stopping means provided on the outer periphery of the water-stopping means for stopping the water, propelled while rotating the cutting ring, cut into the existing tunnel segment and joined, without rotating the water-stopping ring A tunnel joining method characterized in that the water stopping means is brought into close contact with the cutting opening surface of the segment by moving forward in synchronization with the cutting ring.
側に位置し回転して既設トンネルのセグメントに切削貫
入する切削リングと、該切削リングの外側に位置し、回
転せず、貫入した切削リングと切削開口した既設セグメ
ントとの間の隙間の止水を図る止水手段を外周に備えた
止水リングとで構成するリングを設けたことを特徴とす
るトンネル接合装置。2. A shielded excavator comprising: a cutting ring positioned inside a skin plate and rotating to cut and penetrate a segment of an existing tunnel; and a cutting ring positioned outside the cutting ring and not rotating and penetrating. A tunnel joining device, comprising: a water stop ring provided on an outer periphery of a water stop means for stopping water in a gap between the existing segment having a cutting opening.
の形状に対応する溝条を止水リングの外周部に設け、充
填材の注入により膨張する伸縮自在な止水容器を前記溝
条内に収納する請求項２記載のトンネル接合装置。3. A water-stopping means, wherein a groove corresponding to the shape of a cutting opening of an existing segment is provided on an outer peripheral portion of a water-stop ring, and an expandable and contractible water-stop container which expands by injection of a filler is provided in the groove. 3. The tunnel junction device according to claim 2, wherein the tunnel junction device is housed in a tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25755795A JP3155980B2 (en) | 1995-10-04 | 1995-10-04 | Tunnel joining method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25755795A JP3155980B2 (en) | 1995-10-04 | 1995-10-04 | Tunnel joining method and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0996188A JPH0996188A (en) | 1997-04-08 |
| JP3155980B2 true JP3155980B2 (en) | 2001-04-16 |
Family
ID=17307942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25755795A Expired - Lifetime JP3155980B2 (en) | 1995-10-04 | 1995-10-04 | Tunnel joining method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3155980B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6356925B1 (en) | 1999-03-16 | 2002-03-12 | International Business Machines Corporation | Check digit method and system for detection of transposition errors |
-
1995
- 1995-10-04 JP JP25755795A patent/JP3155980B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6356925B1 (en) | 1999-03-16 | 2002-03-12 | International Business Machines Corporation | Check digit method and system for detection of transposition errors |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0996188A (en) | 1997-04-08 |
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