JPH0996188A - Tunnel joining engineering method and device - Google Patents
Tunnel joining engineering method and deviceInfo
- Publication number
- JPH0996188A JPH0996188A JP25755795A JP25755795A JPH0996188A JP H0996188 A JPH0996188 A JP H0996188A JP 25755795 A JP25755795 A JP 25755795A JP 25755795 A JP25755795 A JP 25755795A JP H0996188 A JPH0996188 A JP H0996188A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- cut
- segment
- cutting
- water
- 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.)
- Granted
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、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 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 a device 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 has a cutting means composed of a cutting ring 16 and a cutter head for reducing the diameter. 6
The cutting ring 16 is connected inside the cutting ring 16 in a reduced diameter state, and the cutting head 6 is moved forward while being rotated by a driving and rotating means such as a motor 17, whereby the cutting ring is formed. There is a construction method in which the new tunnel is directly joined to the existing tunnel by moving forward while rotating 16 also to cut and open the side surface of the existing tunnel and biting 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 this joining method, the cutting ring 16
When cutting and penetrating the existing tunnel segment 13 by
Deformation and flattening of segment 13 by cutting cutting ring
Since the cutting is performed with a margin larger than the outer diameter of the ring so that the 16 and the segment 13 are not separated, a gap is created 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 blocking means such as a water blocking bag is provided on the outer peripheral portion of the ring, etc., and the water blocking bag is filled with a filler in a state in which the single ring and the existing segment are joined. To inflate the bag, thereby filling 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 stopping position of the cutting ring, the cutting opening surface of 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, a water blocking bag is interposed between the cutting opening surface of the segment and the cutting opening surface of the segment no matter where it is stopped.
It is necessary to equip a wide range of the outer circumference of the ring with a waterproof bag, which is a large-scale operation.
【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。Further, since the water blocking bag is mounted on the outer circumference of the rotating ring, there is a high possibility that the water blocking bag will be damaged due to contact with the existing segment surface that has been cut, and the outer peripheral portion is protected when the ring is stored. It is necessary and, moreover, the protective material must be 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 in a preset direction / 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 this case, it is sufficient to attach a water blocking bag at a predetermined position on the outer circumference of the cutting ring in correspondence with the cutting opening surface of the existing segment. Is attached to the outer circumference of the rotating ring, there is a risk of damage due to contact with the cutting surface of the existing segment due to rotation.
【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。The object of the present invention is to eliminate the disadvantages of the prior art, to advance the ring, cut into the existing segment and join the segment to join the new tunnel and the existing tunnel, and to connect the new tunnel and the existing tunnel to the outer circumference of the ring. Provided is a tunnel joining method and device in which, when the water stopping means is attached by, for example, the cutting surface of the existing segment is prevented from coming into contact and being damaged in a rotating state, and the attaching range is limited to a predetermined range. Especially.
【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-mentioned object, the present invention firstly comprises a ring having an excavating means provided in a shield excavator for excavating a new tunnel, and this ring forms a segment of an existing tunnel. In the joining method for cutting and joining a new tunnel to an existing tunnel, the ring is located inside the skin plate and rotated to cut and penetrate the segment of the existing tunnel, and the ring is located outside the cutting ring. , A non-rotating, water-sealing ring having a water-sealing means provided on the outer periphery for water-sealing the gap between the penetrating cutting ring and the existing segment with the cutting opening,
The cutting ring is propelled while rotating to cut and penetrate the segment of the existing tunnel, 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. This is the summary.
【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。Secondly, in the shield excavator, a cutting ring located inside the skin plate and rotating to cut into a segment of an existing tunnel, and a cutting ring located outside the cutting ring that does not rotate and penetrates. The gist of the present invention is to provide a ring constituted by a water-stop ring having an outer periphery with water-stop means for stopping the water in the gap between the ring and the existing segment opened by cutting.
【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 stretchable water stopping container that expands by the injection of the filling material is provided in the groove. The main idea is to store it 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 composed of the cutting ring and the water stop ring, and only the cutting ring is rotated to propel the existing segment. Since the water-stop ring is prevented from rotating by cutting and penetrating into it, it is possible to prevent the water-stop means attached to the outer periphery from coming into contact with the cutting opening surface of the segment and damaging it. By advancing in synchronism with the cutting ring, the water blocking means is brought into close contact with the cutting opening surface in a state where the cutting ring has penetrated into the existing segment to achieve water blocking.
【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 stop 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 action, the water blocking 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 blocking ring, and By storing an expandable water-tight container that expands by pouring in the groove and filling the container with the filling material, 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.
【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。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a vertical cross-sectional side view showing a first step of a joining method using a tunnel joining apparatus of the present invention. The joining apparatus of the present invention is installed in a shield excavator 1 and is placed inside a skin plate 2. Water stop ring 3
Is attached slidably, the cutting ring 4 is slidably combined 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 a cutting means such as a cutting bit 5 at its tip, and a concave portion 7 for fitting with the cutter head 6 is provided at a predetermined position on the inner peripheral surface thereof. The tip portion including the cutting bit 5 projects forward from the tip of the water stop ring 3, and the outer side of the rear portion from the tip portion is reduced in diameter, 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 extruding mechanism such as a jack so as not to rotate and to be propelled in synchronization with the extruding speed of the cutting ring 4. On the outer peripheral surface of the tip, water stop means was provided 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-stop means comprises a groove 9 formed on the outer peripheral surface of the water-stop ring 3 and an expandable water-stop container 10 housed inside the groove 9. It is formed so as to expand by the injection pressure of the filler, and is 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。Filler injection pipe that opens into the water-stop container 10
11 is provided in the length direction of the water blocking ring 3, the filling machine is connected to the other end of the injection pipe 11, and the back filling of the outer peripheral portion of the water blocking ring 3 or the water blocking container 10 exerts the water blocking function. Until then, several injection pipes will be provided to perform supplemental injection around the opening.
【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, a soil and sand seal for preventing soil and sand from entering the shield excavator 1 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 portion 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。It should be noted that the cutter head 6 has a mechanism for controlling the diameter when it is coupled with the cutting ring 4 so as to reduce the diameter as compared with the excavation of the shield machine. A mechanism for moving 6 back and forth was provided.
【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 using such a joining device will be described. As shown in Fig. 1, the shield excavator 1 for excavating a new tunnel is excavated toward the segment 13 of the existing tunnel, and the injection pipe is injected into the ground 15 around the junction.
Injecting chemicals from 14 to improve the ground for the purpose of water stop (first step), and stop the shield excavator 1 immediately before the segment 13 of the existing tunnel (second step, see FIG. 2) In this state, The cutter head 6 is expanded 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 diameter of the cutter head 6 is reduced and the cutter head 6 is retracted to cut the cutting ring 4.
And is fitted to the cutting ring 4 via the recess 7. Then, supplemental 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 rotational driving mechanism of the cutter head 6 is operated to push the cutting ring 4 forward while rotating the cutting ring 4 by this rotational 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 is excavated by a predetermined length until the cutter head 6 contacts the segment 13, the fitting between the cutting head 6 and the cutting ring 4 is released,
The cutter head 6 is retracted, the cutting ring 4 is re-engaged at this retracted position, and then the rotary drive mechanism of the cutter head 6 is operated to push out the cutting ring 4 while rotating it, and the cutting bit 5 at the tip end is installed. The central portion 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。After the cutting ring 4 has been dug by a predetermined length, as shown in FIG. 6 as a sixth step, the fitting between the cutter head 6 and the cutting ring 4 is released, and the cutter head 6 is removed.
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 way, the retracting of the cutter head 6,
The fitting with the cutting ring 4 and the rotary extrusion are repeated, the cutting ring 4 is advanced to open the segment 13 with the cutting bit 5, and the predetermined position including the secondary lining portion of the segment 13 as shown in FIG. Once it has been cut, 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 advances as described above, the water stop ring 3 is located outside the cutting ring 4 and does not rotate, and a jack or the like is rotated at a speed synchronized with the pushing speed of the cutting ring 4. It pushes at the same time by the pushing mechanism. Further, since the cutting ring 4 is located inside the water stop ring 3, it is possible to reduce the load applied to the rotary drive mechanism when the cutting ring 4 advances.
【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。When the propulsion is completed, the water shutoff container 10 provided on the water shutoff ring 3 is located at a position corresponding to the cutting opening surface of the segment 13, and in this state, the water shutoff container is removed from the injection pipe 11.
If you inject a filling material such as mortar or water into 10 to expand the water-stop container 10, the water-stop container 10 will adhere to the cutting opening surface due to the injection pressure to stop water, and groundwater or earth and sand from the outside Prevent the inflow of.
【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, the ring for cutting and penetrating the segment of the existing tunnel is composed of the cutting ring and the water stop ring, and the cutting ring is moved forward while being rotated. Since the water blocking ring is joined to the existing segment and the water blocking ring is prevented from rotating, it is possible to prevent the water blocking means mounted on the outer periphery of the water blocking ring from coming into contact with the cutting 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 stop 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 stop means is provided with a groove line corresponding to the shape of the cutting opening of the existing segment on the outer peripheral portion of the water stop ring, and an expandable water stop container that expands by the injection of the filling material is provided in the groove line. By filling the inside of the container with the filling material and filling the container with the filling material, the container comes into close contact with the cutting opening surface of the existing segment by the injection pressure, and water can be surely 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 of 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 vertical sectional side view showing a second step of the tunnel joining 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 junction 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 junction method of 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 junction method of 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 junction 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 cross-sectional side view of essential parts in a state of a seventh step of the tunnel joining 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 1 ... Shield excavator 2 ... Skin plate 3 ... Water stop ring 4 ... Cutting ring 5 ... Cutting bit 6 ... Cutter head 7 ... Recessed portion 8 ... Retaining portion 9 ... Groove 10 ... Water stop container 11 ... Injection pipe 12 ... Sediment seal Material 13… Segment 14… Injection tube 15… Ground 16… Cutting ring 17… Motor
───────────────────────────────────────────────────── フロントページの続き (71)出願人 000002299 清水建設株式会社 東京都港区芝浦一丁目2番3号 (71)出願人 000140982 株式会社間組 東京都港区北青山2丁目5番8号 (71)出願人 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 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 000002299 Shimizu Construction Co., Ltd. 1-3-2 Shibaura, Minato-ku, Tokyo (71) Applicant 000140982 Mazumagumi Co., Ltd. 2-5-8 Kita-Aoyama, Minato-ku, Tokyo (71) ) Applicant 000230010 Geostar Co., Ltd. 4 2-3 Shiba, Minato-ku, Tokyo (72) Inventor Kazuo Takahashi 2-6-2 Otemachi 2-chome, Chiyoda-ku, Tokyo Tokyo Sewer Service Co., Ltd. (72) Inventor Yabe Toshiyuki 2-6-2 Otemachi, Chiyoda-ku, Tokyo Within Tokyo Sewer Service Co., Ltd. (72) Inventor Shigeto Aoki 2-6-2 Otemachi, Chiyoda-ku, Tokyo Within Tokyo Sewer Service Co., Ltd. (72) Inventor Toru Watanabe 2570-2 Shimotsuruma, Yamato-shi, Kanagawa Nishimatsu Construction Co., Ltd. Technical Research Institute (72) Inventor, Yoshio Iso Kanagawa 2570 4 Shita-Tsuruma, Nishimatsu Construction Co., Ltd. Technical Research Institute (72) Inventor Yoshikazu Kido 2-1, Tsukudo-cho, Shinjuku-ku, Tokyo Kumagai Gumi Co., Ltd. Tokyo headquarters (72) Inventor Noriyasu Yamamori Shinjuku-ku, Tokyo 2-1-1 Tsukudo-cho Kumagaya Gumi Tokyo Head Office (72) Inventor Minoru 1-3 2-3 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Shinji Seki 1-chome, Shibaura, Minato-ku, Tokyo No. 2-3 Shimizu Corporation (72) Inventor Masahiko Hayakawa 2-5-8 Kita-Aoyama, Minato-ku, Tokyo Intra-company group (72) Inventor Tsutomu Hagiwara 2-5-8 Kita-Aoyama, Minato-ku, Tokyo Stock company Inter-company (72) Inventor Yutaka Fujino 4-23 Shiba, Minato-ku, Tokyo Geostar Co., Ltd. (72) Hideki Tanaka 2-3-4 Shiba, Minato-ku, Tokyo Geostar, Inc.
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。A shield excavator for excavating a new tunnel is provided with a ring having excavation means, and in this joining method for cutting and penetrating into a segment of an existing tunnel to join the new tunnel to the existing tunnel, the ring is
A cutting ring that is located inside the skin plate and rotates to cut into the existing tunnel segment, and a gap that is located outside the cutting ring and that does not rotate and that does not rotate and that penetrates the cutting ring and the existing segment that has a cutting opening. It consists of a water stop ring equipped with a water stop ring on the outer periphery to prevent the water from stopping, and it is propelled while rotating the cutting ring to cut and penetrate into the segment of the existing tunnel and join it without rotating the water stop ring. A tunnel joining method characterized by advancing in synchronization with the cutting ring and adhering the water stop means to the cutting opening surface of the segment.
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 shield excavator comprising a cutting ring located inside a skin plate and rotating to cut into a segment of an existing tunnel, and a cutting ring located outside the cutting ring that does not rotate and penetrates. A tunnel joining device, characterized in that a ring constituted by a water-stop ring having an outer periphery with water-stop means for stopping water in a gap between an existing segment that has been cut and opened is provided.
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. The water stop means is provided with a groove line corresponding to the shape of the cutting opening of the existing segment on the outer peripheral portion of the water stop ring, and an expandable water stop container that expands when the filler is injected is provided in the groove line. The tunnel joining device according to claim 2, which is housed in a box.
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 true JPH0996188A (en) | 1997-04-08 |
JP3155980B2 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) |
Families Citing this family (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
Also Published As
Publication number | Publication date |
---|---|
JP3155980B2 (en) | 2001-04-16 |
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