JP2539028B2 - Ring drilling rig - Google Patents
Ring drilling rigInfo
- Publication number
- JP2539028B2 JP2539028B2 JP1055188A JP5518889A JP2539028B2 JP 2539028 B2 JP2539028 B2 JP 2539028B2 JP 1055188 A JP1055188 A JP 1055188A JP 5518889 A JP5518889 A JP 5518889A JP 2539028 B2 JP2539028 B2 JP 2539028B2
- Authority
- JP
- Japan
- Prior art keywords
- excavator body
- guide member
- annular
- pipe
- guide
- 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
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，既設管渠を布設替えするときなどに使用す
る環状掘削装置に関するものである。Description: TECHNICAL FIELD The present invention relates to an annular excavation device used when replacing an existing pipe ditch.
（従来の技術） 開削工法やシールド工法により構築された地下の既設
管渠は，老朽化による強度低下，送水量の容量不足等に
より，布設替えする必要があり，このときには，既設管
渠の機能を一旦停止させた後，人力に依存した開削工法
等により老朽化した既設管渠を撤去し，次いで新しい管
渠を布設するようにしている。(Prior art) Existing underground pipes constructed by the open-cut method and shield method must be replaced due to deterioration of strength due to aging and insufficient capacity of water supply. At this time, the function of the existing pipes After temporarily stopping, the existing pipe dilapidated by the open-cut construction method that depends on human power is removed, and then a new pipe is installed.
（発明が解決しようとする課題） 従来は前記のように既設管渠が老朽化したとき，既設
管渠の機能を一旦停止させた後，人力に依存した開削工
法等により老朽化した既設管渠を撤去し，次いで新しい
管渠を布設しているので，工期が長くなる上に，工事費
が嵩む。また開削工法は，地上の用地を確保する必要か
ら道路部の交通を規制しなければならないという二次的
な問題を生じている。(Problems to be Solved by the Invention) Conventionally, when the existing drainage pipe is deteriorated as described above, the function of the existing drainage pipe is temporarily stopped, and then the existing drainage pipe is deteriorated by a cutting method that depends on human power. Since it was removed and a new pipe is laid next, the construction period is long and the construction cost is high. In addition, the excavation method has a secondary problem in that traffic on roads must be regulated because it is necessary to secure land on the ground.
本発明は前記の問題点に鑑み提案するものであり，そ
の目的とする処は，工期を短縮できる上に，工事費を低
減できる。道路部での交通規制及び掘削部付近に埋設さ
れている埋設物の防護を不要にできる。排水しながら布
設替えできる。さらに掘削装置本体の方向制御を容易に
行うことができる環状掘削装置を提供しようとする点に
ある。The present invention is proposed in view of the above problems, and the object of the present invention is to shorten the construction period and reduce the construction cost. It is possible to eliminate the need for traffic regulation on the road and protection of buried objects buried near the excavation part. You can change the installation while draining. Further, another object is to provide an annular drilling device that can easily control the direction of the drilling device body.
（課題を解決するための手段） 上記の目的を達成するために，本発明の環状掘削装置
は，掘削装置本体と，同掘削装置本体の先端部に同掘削
装置本体の中心軸線を中心とした旋回を可能に取付けた
環状のカツタ装置と，上記掘削装置本体内に設けた推進
ジヤツキと，上記掘削装置本体内に設けた排土装置と，
上記掘削装置本体の先端部内から前方へ突設したガイド
部材と，同ガイド部材の先端部の周りに間隔を置いて取
付けた複数個の伸縮可能なローラ付案内装置とを具えて
いる。(Means for Solving the Problems) In order to achieve the above-mentioned object, an annular drilling rig of the present invention has a drilling rig main body and a center axis of the drilling rig main body at the tip of the drilling rig main body. An annular cutter device mounted so as to be capable of turning, a propulsion jack provided in the excavator body, and an earth removal device provided in the excavator body,
The excavator body comprises a guide member protruding forward from the inside of the tip portion, and a plurality of expandable / contractible roller guide devices mounted around the tip portion of the guide member at intervals.
前記ガイド部材内には，同ガイド部材を前後方向に貫
通した排水管を設けてもよい。A drainage pipe may be provided in the guide member so as to penetrate the guide member in the front-rear direction.
（作用） 本発明は前記のように構成されており，掘削装置本体
から前方に突設したガイド部材を既設管渠内に挿入し，
各案内装置のローラをガイド部材の内周面に接触させ，
次いでカツタ旋回駆動用モータを起動し，その回転をカ
ツタ装置に伝えて，同カツタ装置を掘削装置本体の中心
軸線を中心に旋回させるとともに，掘削装置本体とその
後方の新設管渠との間に介装されている推進ジヤツキを
伸長方向に作動し，掘削装置本体とガイド部材と各案内
装置とを前進させて，カツタ装置により既設管渠をその
端部から破砕するとともに，既設管渠周辺の土を掘削
し，また破砕，掘削した破片，掘削土を排土装置へ落下
させ，それからは同排土装置により掘削装置本体の後方
へ搬送する。このとき，各案内装置を伸縮方向に作動
し，ガイド部材の既設管渠内における位置を変えて，上
記のように前進しながら破砕，掘削している掘削装置本
体の向きを制御する。また既設管渠内を流れている下水
等の流体を排水管により掘削装置本体の後方へ排水す
る。また掘削装置本体の前進につれて掘削装置本体の後
方では，新設管渠の布設を行う。(Operation) The present invention is configured as described above, and the guide member protruding forward from the excavator body is inserted into the existing pipe,
The roller of each guide device is brought into contact with the inner peripheral surface of the guide member,
Next, the cutter rotation drive motor is started, the rotation is transmitted to the cutter device, and the cutter device is rotated about the central axis of the excavator body, and between the excavator body and the new aft pipe behind it. The inserted propulsion jack is operated in the extension direction to advance the excavator body, the guide member, and each guide device, and the cutter device crushes the existing conduit from its end, and The soil is excavated, and the crushed and excavated debris and the excavated soil are dropped onto the soil discharging device, and then the soil discharging device conveys the soil behind the excavating device. At this time, each guide device is operated in the expansion / contraction direction to change the position of the guide member in the existing pipe to control the direction of the excavating device body that is being crushed and excavated while advancing as described above. In addition, the drainage pipe drains fluid such as sewage flowing in the existing drainage pipe to the rear of the excavator body. In addition, as the excavator body moves forward, a new pipe is installed behind the excavator body.
（実施例） 次に本発明の環状掘削装置を第1,2,3図に示す一実施
例により説明すると，（１）が掘削装置本体，（1a）が
同掘削装置本体（１）の先端部内周面から半径方向内方
へ突設した環状フランジ，（２）が円筒状のガイド部材
で，同ガイド部材（２）の後端部が上記環状フランジ
（1a）に固定されている。また（３）が老朽化した既設
管渠，（４）が案内装置，（５）が同案内装置（４）の
ジヤツキ，（６）が同案内装置（４）のローラで，本実
施例の場合には，案内装置（４）が４つあり，同各案内
装置（４）がガイド部材（２）の先端部外周面の円周方
向等間隔位置に配設されて，同各案内装置（４）の前後
両脚部がガイド部材（２）の先端部外周面に固定されて
おり，同各案内装置（４）のジヤツキ（５）を伸縮方向
に作動して，各ローラ（６）を既設管渠（３）の内周面
に接触させたり，同内周面から離したりするようになっ
ている。また（７）が上記掘削装置本体（１）の環状フ
ランジ（1a）に固定したカツタ旋回駆動用モータ，（7
a）が同モータ（７）の出力軸に取付けた環状外歯歯
車，（８）が上記掘削装置本体（１）の先端部に回転可
能に支持した環状のカツタ装置で，同カツタ装置（８）
が上記既設管渠（３）の端部に接触するようになってい
る。また（8a）が同カツタ装置（８）に固定するととも
に上記環状外歯歯車（7a）に噛合した環状内歯歯車で，
カツタ旋回駆動用モータ（７）の回転を環状外歯歯車
（7a）→環状内歯歯車（8a）を経て環状のカツタ装置
（８）に伝えて，同カツタ装置（８）を掘削装置本体
（１）の中心軸線を中心に旋回させるようになってい
る。また（９）が掘削装置本体（１）後方の新設管渠，
（10）が上記掘削装置本体（１）内に設けた推進ジヤツ
キで，同推進ジヤツキ（10）の後端部が上記新設管渠
（９）に接触しており，同推進ジヤツキ（10）を伸長方
向に作動して，掘削装置本体（１）を前進させるように
なっている。また（11）がコンベア等の排土装置で，上
記カツタ装置（８）からの破片，掘削土を上記ガイド部
材（２）の後部に設けた切欠き部（2a）を経て同排土装
置（11）へ落下させ，それからは排土装置（11）が掘削
装置本体（１）の後方へ搬送するようになっている。ま
た（12）が上記ガイド部材（２）を貫通して掘削装置本
体（１）の前後方向に延びた排水管，（13）が上記各案
内装置（４）に取付けた補助工法用ツールである。(Embodiment) Next, the annular drilling rig of the present invention will be described with reference to one embodiment shown in FIGS. 1, 2, and 3. (1) is the drilling rig body, (1a) is the tip of the drilling rig main body (1). An annular flange (2) projecting radially inward from the inner peripheral surface of the part is a cylindrical guide member, and the rear end of the guide member (2) is fixed to the annular flange (1a). Further, (3) is an existing pipe dilapidated, (4) is a guide device, (5) is a jack of the guide device (4), and (6) is a roller of the guide device (4). In this case, there are four guide devices (4), and the guide devices (4) are arranged at circumferentially equidistant positions on the outer peripheral surface of the distal end portion of the guide member (2). Both front and rear legs of 4) are fixed to the outer peripheral surface of the front end of the guide member (2), and the jacks (5) of the respective guide devices (4) are actuated in the expansion / contraction direction to install each roller (6). The pipe (3) is brought into contact with or separated from the inner peripheral surface. In addition, (7) is a motor for driving the turning of the cutter fixed to the annular flange (1a) of the excavator body (1), (7
a) is an annular external gear mounted on the output shaft of the motor (7), and (8) is an annular cutter device rotatably supported at the tip of the excavator body (1). )
Is in contact with the end of the existing pipe (3). An annular internal gear (8a) is fixed to the cutter device (8) and meshes with the annular external gear (7a).
The rotation of the cutter turning drive motor (7) is transmitted to the annular cutter device (8) through the annular external gear (7a) and the annular internal gear (8a), so that the cutter device (8) is moved to the excavator body ( It is designed to turn around the central axis of 1). In addition, (9) is a new pipe under the excavator body (1),
(10) is a propulsion jack provided in the excavator body (1), and the rear end of the propulsion jack (10) is in contact with the new pipe (9). It operates in the extension direction to move the excavator body (1) forward. Further, (11) is an earth removing device such as a conveyor, and the debris and excavated soil from the cutter device (8) are passed through the notch (2a) provided at the rear part of the guide member (2) to the earth removing device ( 11), and then the soil discharging device (11) conveys it to the rear of the excavator body (1). Further, (12) is a drain pipe extending through the guide member (2) in the front-rear direction of the excavator body (1), and (13) is an auxiliary construction tool attached to each of the guide devices (4). .
次に前記第1,2,3図に示す環状掘削装置の作用を具体
的に説明する。掘削装置本体（１）から前方に突設した
ガイド部材（２）を既設管渠（３）内に挿入し，各案内
装置（４）のジヤツキ（５）を伸長方向に作動して，各
ローラ（６）をガイド部材（２）の内周面に接触させ，
次いでカツタ旋回駆動用モータ（７）を起動し，その回
転を環状外歯歯車（7a）→環状内歯歯車（8a）を経てカ
ツタ装置（８）に伝えて，同カツタ装置（８）を掘削装
置本体（１）の中心軸線を中心に旋回させるとともに，
掘削装置本体（１）の新設管渠（９）との間に介装され
ている推進ジヤツキ（10）を伸長方向に作動し，掘削装
置本体（１）とガイド部材（２）と各案内装置（４）と
を前進させて，カツタ装置（８）により既設管渠（３）
をその端部から破砕するとともに，既設管渠（３）周辺
の土を掘削し，また破砕，掘削した破片，掘削土をガイ
ド部材（２）の後部に設けた切欠き部（2a）から排土装
置（11）へ落下させ，それからは同排土装置（11）によ
り掘削装置本体（１）の後方へ搬送する。このとき，各
案内装置（４）のジヤツキ（５）を伸縮方向に作動し，
ガイド部材（２）の既設管渠（３）内における位置を変
えて，上記のように前進しながら破砕，掘削している掘
削装置本体（１）の向きを制御する。その際，方向制御
に必要な反力の一部を既設管渠（３）側で受ける。また
既設管渠（３）内を流れている下水等の流体を排水管
（12）により掘削装置本体（１）の後方へ排水する。ま
た掘削装置本体（１）の前進につれて掘削装置本体
（１）の後方では，新設管渠（９）の組み立てを行う。
さらに補助工法用ツール（13）を必要に応じ揺動させ
て，既設管渠（３）の前処理（鉄筋細断或いは既設管渠
（３）の事前細断等）を行う。Next, the operation of the annular excavator shown in FIGS. 1, 2, and 3 will be specifically described. The guide member (2) protruding forward from the excavator body (1) is inserted into the existing pipe ditch (3), and the jacks (5) of the guide devices (4) are operated in the extension direction to move the rollers. (6) is brought into contact with the inner peripheral surface of the guide member (2),
Next, the motor (7) for rotating the cutter is started, and its rotation is transmitted to the cutter device (8) through the annular external gear (7a) and the annular internal gear (8a) to excavate the cutter device (8). While turning around the central axis of the device body (1),
The propulsion jack (10) interposed between the excavator body (1) and the new pipe (9) is actuated in the extension direction to excavate the excavator body (1), the guide member (2), and each guide device. (4) and forward, and the existing device (3) by the cutter device (8)
While crushing the soil from its end, excavating the soil around the existing pipe (3), and crushing and excavating debris and excavated soil from the notch (2a) provided at the rear of the guide member (2). It is dropped to the earthmoving device (11), and then it is conveyed to the rear of the excavating device body (1) by the earthmoving device (11). At this time, activate the jack (5) of each guide device (4) in the expansion and contraction direction,
The position of the guide member (2) in the existing pipe (3) is changed to control the direction of the excavator body (1) that is being crushed and excavated while advancing as described above. At that time, a part of the reaction force necessary for the direction control is received by the existing pipe (3) side. Further, a fluid such as sewage flowing in the existing pipe (3) is drained to the rear of the excavator body (1) through the drain pipe (12). Further, as the excavator body (1) advances, a new pipe (9) is assembled behind the excavator body (1).
Further, the auxiliary working method tool (13) is swung as necessary to perform pretreatment of the existing pipe (3) (rebar cutting or pre-cutting of the existing pipe (3), etc.).
（発明の効果） 本発明は前記のように掘削装置本体から前方に突設し
たガイド部材を既設管渠内に挿入し，各案内装置のロー
ラをガイド部材の内周面に接触させ，次いでカツタ旋回
駆動用モータを起動し，その回転をカツタ装置に伝え
て，同カツタ装置を掘削装置本体の中心軸線を中心に旋
回させるとともに，掘削装置本体とその後方の新設管渠
との間に介装されている推進ジヤツキを伸長方向に作動
し，掘削装置本体とガイド部材と各案内装置とを前進さ
せて，カツタ装置により既設管渠をその端部から破砕す
るとともに，既設管渠周辺の土を掘削し，また破砕，掘
削した破片，掘削土を排土装置へ落下させ，それからは
同排土装置により掘削装置本体の後方へ搬送する。この
とき，各案内装置を伸縮方向に作動し，ガイド部材の既
設管渠内における位置を変えて，上記のように前進しな
がら破砕，掘削している掘削装置本体の向きを制御す
る。また既設管渠内を流れている下水等の流体を排水管
により掘削装置本体の後方へ排水する。また掘削装置本
体の前進につれて掘削装置本体の後方では，新設管渠の
布設を行うので，既設管渠の布設替えを機械的に効率良
く行うことができて，工期を短縮できる上に，工事費を
低減できる。(Effects of the Invention) The present invention inserts the guide member projecting forward from the excavator body into the existing pipe as described above, and the rollers of each guide device are brought into contact with the inner peripheral surface of the guide member. The turning drive motor is started, the rotation is transmitted to the cutter device, the cutter device is rotated about the central axis of the excavator body, and the excavator body is inserted between the excavator body and a new pipe conduit behind it. The propulsion jack is operated in the extension direction to advance the excavator body, the guide member, and each guide device, and the cutter device crushes the existing pipe conduit from its end, and the soil around the existing pipe conduit is also crushed. Excavation, crushing, excavated debris, and excavated soil are dropped onto the soil discharging device, and then transported to the rear of the excavating device by the soil discharging device. At this time, each guide device is operated in the expansion / contraction direction to change the position of the guide member in the existing pipe to control the direction of the excavating device body that is being crushed and excavated while advancing as described above. In addition, the drainage pipe drains fluid such as sewage flowing in the existing drainage pipe to the rear of the excavator body. In addition, as the excavator main unit moves forward, a new pipe is laid behind the excavator main unit, so it is possible to mechanically and efficiently replace the existing pipe, shortening the construction period and reducing the construction cost. Can be reduced.
また開削工法でなく，地中を掘り進むので，道路部で
の交通規制にできる。また開削工法でないので，掘削部
付近に埋設されている埋設物の防護を不要にできる。In addition, since it is not an excavation method, it digs into the ground, so it can be used as a traffic control on the road. Moreover, since it is not an excavation method, it is not necessary to protect the buried objects buried near the excavation site.
また方向制御に必要な反力の一部を既設管渠側で受け
ることになるので，掘削装置本体の方向制御を容易に行
うことができる。Further, since a part of the reaction force required for the direction control is received by the existing pipe side, it is possible to easily control the direction of the excavator body.
またガイド部材内を前後方向に貫通した排水管を具え
ており，排水しながら布設替えができる効果がある。It also has a drain pipe that penetrates the guide member in the front-back direction, which has the effect of changing the construction while draining.
第１図は本発明に係わる環状掘削装置の一実施例を示す
縦断側面図，第２図は第１図の矢視II−II線に沿う縦断
正面図，第３図は第１図の矢視III−III線に沿う縦断背
面図である。 （１）……掘削装置本体，（２）……ガイド部材，
（３）……既設管渠，（４）……ローラ付案内装置，
（８）……環状のカツタ装置，（10）……推進ジヤツ
キ，（11）……排土装置，（12）……排水管。FIG. 1 is a vertical sectional side view showing an embodiment of an annular excavating device according to the present invention, FIG. 2 is a vertical sectional front view taken along the line II-II in FIG. 1, and FIG. 3 is an arrow in FIG. It is a longitudinal rear view taken along line III-III. (1) …… excavator body, (2) …… guide member,
(3) …… Existing pipe, (4) …… Guide device with roller,
(8) …… annular cutter device, (10) …… propulsion jack, (11) …… earth removal device, (12) …… drain pipe.
フロントページの続き (72)発明者 竹之内 康昭 東京都港区北青山２丁目５番８号 株式 会社間組内 (72)発明者 西尾 誠▲高▼ 東京都港区北青山２丁目５番８号 株式 会社間組内 (56)参考文献 実開 昭63−198698（ＪＰ，Ｕ)Front Page Continuation (72) Inventor Yasuaki Takenouchi 2-5-8 Kitaoaoyama, Minato-ku, Tokyo Within a stock company group (72) Inventor Makoto Nishio 2-5-8 Kita-Aoyama, Minato-ku, Tokyo Stock company group (56) Bibliography Sho 63-198698 (JP, U)
Claims (2)
に同掘削装置本体の中心軸線を中心とした旋回を可能に
取付けた環状のカツタ装置と、上記掘削装置本体内に設
けた推進ジヤツキと、上記掘削装置本体内に設けた排土
装置と、上記掘削装置本体の先端部内から前方へ突設し
たガイド部材と、同ガイド部材の先端部の周りに間隔を
置いて取付けた複数個の伸縮可能なローラ付案内装置と
を具えていることを特徴とした環状掘削装置。1. An excavator body, an annular cutter device attached to the tip of the excavator body so as to be rotatable about a central axis of the excavator body, and propulsion provided in the excavator body. A jack, an earth removing device provided in the excavator body, a guide member projecting forward from the inside of the tip of the excavator body, and a plurality of guide members spaced around the tip of the guide member. An annular drilling rig, comprising: a retractable guide device with a roller.
水管を具えている請求項１記載の環状掘削装置。2. The annular excavating device according to claim 1, further comprising a drain pipe penetrating in the guide member in the front-rear direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1055188A JP2539028B2 (en) | 1989-03-09 | 1989-03-09 | Ring drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1055188A JP2539028B2 (en) | 1989-03-09 | 1989-03-09 | Ring drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02236394A JPH02236394A (en) | 1990-09-19 |
| JP2539028B2 true JP2539028B2 (en) | 1996-10-02 |
Family
ID=12991730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1055188A Expired - Fee Related JP2539028B2 (en) | 1989-03-09 | 1989-03-09 | Ring drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2539028B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0814236B2 (en) * | 1991-12-21 | 1996-02-14 | 株式会社奥村組 | Pipe modification device |
-
1989
- 1989-03-09 JP JP1055188A patent/JP2539028B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02236394A (en) | 1990-09-19 |
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