JP2578184B2 - Ring drilling rig - Google Patents
Ring drilling rigInfo
- Publication number
- JP2578184B2 JP2578184B2 JP63292410A JP29241088A JP2578184B2 JP 2578184 B2 JP2578184 B2 JP 2578184B2 JP 63292410 A JP63292410 A JP 63292410A JP 29241088 A JP29241088 A JP 29241088A JP 2578184 B2 JP2578184 B2 JP 2578184B2
- Authority
- JP
- Japan
- Prior art keywords
- cutter
- existing pipe
- pipe
- cutter head
- existing
- 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、地下に埋設されている老朽管等の既設管を
新管に布設替え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 excavator for replacing an existing pipe such as an old pipe buried underground with a new pipe.
（従来の技術） 開削工法やシールド工法等により構築された地下に埋
設されている既設管（管渠）は、老朽化による強度低
下、送水の容量不足等による再敷設が必要となり、既設
管と新管との布設替えは、従来、既設管（管渠）の機能
を停止して、開削工法等により既設管を撤去したのち、
新管を布設する段階的な工程となり、人力による作業が
多くなっている。(Conventional technology) Existing pipes (drain pipes) buried underground constructed by open-cutting method or shield method, etc. need to be re-laid due to deterioration of strength due to aging and insufficient water supply capacity. Replacement of a new pipe with a new pipe is conventionally done by stopping the function of the existing pipe (sewer) and removing the existing pipe by open cut method, etc.
This is a stepwise process of laying new pipes, and the number of manual operations is increasing.
（発明が解決しようとする課題） 従来の前記既設管と新管の布設替えは、既設管の機能
停止に伴う代替え処置や既設管の撤去、その後の新管の
布設などを段階的に行うことが必要であり、多くの手数
を要し工期が長くなり工事費が著しく増大するなどの課
題がある。(Problems to be Solved by the Invention) The conventional replacement of existing pipes and new pipes involves stepwise replacement of the existing pipes, removal of existing pipes, and subsequent installation of new pipes. However, there is a problem that a lot of trouble is required, a construction period is lengthened, and construction costs are significantly increased.
また、前記布設替えを開削工法で実施する場合は、地
上の用地確保を要し、道路部の交通規制、その他の二次
的な問題が非常に多く工事の著しい支障となり、トンネ
ル工事で実施する場合は、既設管の破砕後の地山の安定
（自立）を確保するために、既設管の周辺地盤を薬液注
入などで固化させて地盤改良する必要があり、また、ト
ンネル内からの既設管の排出、新管布設に多くの手数を
要し困難な作業となり、著しく工費が増大するなどの課
題がある。In addition, when the laying is carried out by the open-cutting method, it is necessary to secure land on the ground, traffic regulations in the road section, and other secondary problems are extremely many, which significantly impedes the construction, and is carried out in tunnel construction. In such a case, it is necessary to solidify the ground around the existing pipes by injecting chemicals and improve the ground to secure the stability (self-supporting) of the ground after the crushing of the existing pipes. There is a problem that it takes a lot of time and effort to discharge and lay new pipes, which is a difficult task and significantly increases the construction cost.
本発明は、前記のような課題に対処するために開発さ
れたものであって、その目的とする処は、機械力によっ
て既設管の外周地山の連続掘削と既設管の連続切削、撤
去を可能とし、周壁の地山をシールして保護し新管の併
行布設を可能にして、既設管と新管の布設替え性能、能
率を向上した環状掘削装置を提供するにある。The present invention has been developed in order to address the above-described problems, and the object thereof is to continuously excavate the ground around the existing pipe and continuously cut and remove the existing pipe by mechanical force. It is an object of the present invention to provide an annular drilling rig in which the performance of the replacement of existing pipes and new pipes is improved, and the efficiency is improved by making it possible to seal and protect the ground on the peripheral wall and to lay new pipes in parallel.
（課題を解決するための手段） 本発明は、装置本体に配設されたスキンプレートと複
数の推進ジヤツキおよび排出装置等を具備したトンネル
掘削装置において、前記装置本体の前側に回転駆動装置
によって回転駆動される筒状のカツタヘツドを突設し、
該カツタヘツドの全部に既設管の外側カツタおよび同既
設管の切削カツタを配設した構成に特徴を有し、複数の
推進ジヤツキによって与えられる装置全体の推力と、装
置本体の前側に突出して回転するカツタヘツドの外側カ
ツタと切削カツタにより、既設管の外周地山の連続掘削
および既設管の連続切削、撤去を可能とし、カツタヘツ
ドとスキンプレートによる周壁の地山のシール、保護に
より、新管の併行布設を可能にしている。(Means for Solving the Problems) The present invention relates to a tunnel excavator equipped with a skin plate, a plurality of propulsion jacks, a discharge device, and the like provided on an apparatus main body. A driven cylindrical cutter head is protruded,
The cutter head is characterized by a structure in which an outer cutter of an existing pipe and a cutting cutter of the existing pipe are disposed on all of the cutter heads. The thrust of the entire apparatus provided by a plurality of propulsion jacks and the apparatus protrudes toward the front of the apparatus body and rotate. The outer cutter of the cutter head and the cutting cutter enable continuous excavation of the existing ground around the existing pipe and continuous cutting and removal of the existing pipe. Is possible.
（作 用） 複数の推進ジヤツキを布設された新管の前端部に当接
し、推進ジヤツキの伸長による反力によって装置全体に
推力が与えられ、装置本体の前側に突設され、回転駆動
装置によって回転駆動されるカツタヘツドの外側カツタ
と切削カツタにより、既設管の外側地山が連続掘削され
るとともに、既設管が連続切削、撤去され、カツタヘツ
ドとスキンプレートによって地山周壁、シールが安定さ
れて、新管が併行して円滑に布設される。(Operation) A plurality of propulsion jacks come into contact with the front end of the laid new pipe, a thrust is given to the entire device by a reaction force due to the extension of the propulsion jack, and the thrust is protruded from the front side of the device main body. The outer ground of the existing pipe is continuously excavated by the outer cutter and the cutting cutter of the rotationally driven cutter head, the existing pipe is continuously cut and removed, and the ground peripheral wall and the seal are stabilized by the cutter head and the skin plate, New pipes will be laid smoothly alongside.
（実施例） 第１図および第２図に本発明の第１実施例を示し、図
中（１）は装置本体、（２）は装置本体（１）の外周に
装着されて後方に突設された筒状のスキンプレート、
（３）は装置本体（１）の後側周囲部に突設された複数
の推進ジヤツキ、（４）は装置本体（１）の前側下部か
ら掘削土砂等を受取って後方へ排出するスクリユーコン
ベヤ等からなる排出装置であって、装置本体（１）に配
設されたスキンプレート（２）と複数の推進ジヤツキ
（３）および排出装置（４）等を具備したトンネル掘削
装置において、装置本体（１）の前側に回転駆動装置
（10,11,12）によって回転駆動される筒状のカツタヘツ
ド（５）を突設して、カツタヘツド（５）の前部に既設
管（20）の外側カツタ（6a,6b）および同既設管の切削
カツタ（6c）を配設した環状掘削装置になっている。(Embodiment) FIGS. 1 and 2 show a first embodiment of the present invention. In the drawings, (1) is mounted on the outer periphery of the apparatus main body (1), and (2) is mounted on the outer periphery of the apparatus main body (1) so as to protrude rearward. Cylindrical skin plate,
(3) a plurality of propulsion jacks protruding from a rear peripheral portion of the device body (1), and (4) a screw conveyor for receiving excavated earth and sand from a lower front portion of the device body (1) and discharging the excavated soil backward. And a plurality of propulsion jacks (3) and a discharge device (4) provided on the device main body (1). A cylindrical cutter head (5), which is rotationally driven by a rotary driving device (10, 11, 12), protrudes from the front side of 1), and an outer cutter (20) of the existing pipe (20) is provided in front of the cutter head (5). 6a, 6b) and the existing pipe cutting cutter (6c).
前記カツタヘツド（５）は、装置本体（１）の前側に
シール・軸受機構（７）等により回転可能に突設され、
装置本体（１）に配設されたカツタ回転用モータ（1
0）、ギヤ（11），（12）等からなる回転駆動装置（10,
11,12）によって回転される。The cutter head (5) is rotatably protruded from a front side of the apparatus main body (1) by a seal / bearing mechanism (7) or the like.
The cutter rotation motor (1
0), a rotary drive device (10,
11,12).
前記カツタヘツド（５）の前端面に周方向間隔をおき
配設され既設管（20）の外周に沿って掘削する複数の外
側カツタ（6a）と、カツタヘツド（５）の前部外周面に
周方向間隔をおき配設され既設管（20）外側の地盤を掘
削する複数のスパイラル状外側カツタ（6b）、およびカ
ツタヘツド（５）の内面側に周方向間隔をおき配設され
て既設管（20）の端部を切削する複数の切削カツタ（6
c）が配設され、カツタヘツド（５）の回転駆動によっ
て、各外側カツタ（6a）が先行して既設管（20）の外周
に沿って掘削するとともに、各外側カツタ（6b）によっ
て既設管（20）の外周地山が掘削され、各切削カツタ
（6c）によって既設管（20）の端部が切削される。A plurality of outer cutters (6a) which are arranged at intervals in the circumferential direction on the front end face of the cutter head (5) and excavate along the outer circumference of the existing pipe (20); A plurality of spiral outer cutters (6b) that are arranged at intervals and excavate the ground outside the existing pipe (20), and existing pipes (20) that are arranged at circumferential intervals on the inner surface side of the cutter head (5) Multiple cutting cutters (6
c) is disposed, and by rotating the cutter head (5), each outer cutter (6a) excavates along the outer circumference of the existing pipe (20) in advance, and the outer pipe (6b) is excavated by each outer cutter (6b). The ground around 20) is excavated, and the end of the existing pipe (20) is cut by each cutting cutter (6c).
本発明の第１実施例は、前記のような構成になってお
り作用について詳述すると、装置本体（１）の後側周囲
部に突設された複数の推進ジヤツキ（３）のロツド端に
装着されている各当接部材（3a）が新たに布設された新
管（30）（セグメント組立等）の前端に当接されて、各
推進ジヤツキ（３）の伸長による反力によって装置全体
に推力が与えられ、カツタ回転用モータ（10）によりギ
ヤ（11），（12）等の伝導機構を介してカツタヘツド
（５）が回転駆動されて、カツタヘツド（５）前部の各
外側カツタ（6a）により既設管（20）の外周に沿って掘
削され、続いてスパイラル状の各外側カツタ（6b）によ
り既設管（20）の外周地山が掘削されるとともに、各切
削カツタ（6c）によって既設管（20）の端部が切削さ
れ、掘削土砂および既設管（20）の切削屑は排出装置
（４）で連続的に後方へ排出されて、既設管（20）外周
の地山掘削とともに既設管（20）の切削が同時に連続し
て行われ、既設管外周の地山掘削と既設管の切削撤去が
連続的に同時に進行される。The first embodiment of the present invention has the above-described structure, and the operation thereof will be described in detail. To be more specific, the protruding jacks (3) protruding from the rear peripheral portion of the device body (1) are provided at the rod ends. Each mounted contact member (3a) is brought into contact with the front end of the newly laid new pipe (30) (segment assembly, etc.), and the reaction force due to the extension of each propulsion jack (3) is applied to the entire device. A thrust is applied, and the cutter head (5) is rotationally driven by a cutter rotating motor (10) via a transmission mechanism such as gears (11) and (12), so that each of the outer cutters (6a) in front of the cutter head (5). ) Excavates along the outer circumference of the existing pipe (20), and then the outer ground of the existing pipe (20) is excavated by each of the spiral outer cutters (6b), and is also installed by the respective cutting cutters (6c). The end of the pipe (20) is cut, excavated sediment and existing pipe (20) The cutting chips are continuously discharged backward by the discharge device (4), and the cutting of the existing pipe (20) is simultaneously performed simultaneously with the excavation of the ground around the existing pipe (20). Drilling and removal of existing pipes are continuously and simultaneously performed.
また、既設管（20）外周の地山掘削とともに、外周掘
削面がカツタヘツド（５）とスキンプレート（２）によ
りシールされて安定され、装置後方で新管（30）の布設
が併行的に行われる。推進ジヤツキ（３）の１ストロー
ク分の掘進が行われると、各推進ジヤツキ（３）を順次
に短縮して新管（30）の布設が行われ、前記工程の繰返
しにより機械力によって遂行される既設管（20）の連続
切削、撤去とともに新管（30）の布設が連続的に併行さ
れて行われる。In addition, along with excavation of the ground around the existing pipe (20), the outer excavation surface is sealed and stabilized by the cutter head (5) and the skin plate (2), and a new pipe (30) is laid in parallel behind the equipment. Will be When the propulsion jack (3) is excavated for one stroke, each propulsion jack (3) is sequentially shortened, and a new pipe (30) is laid. This is performed by mechanical force by repeating the above steps. The continuous cutting and removal of the existing pipe (20) and the laying of a new pipe (30) will be performed in parallel.
既設管（20）内の上下水等は、適宜の手段によって装
置後部へ排出される。Water and sewage in the existing pipe (20) are discharged to the rear of the apparatus by appropriate means.
第３図に本発明の第２実施例を示しており、第１実施
例に比べると、カツタヘツド（５）の先端部に、周方向
間隔をおきかつ内，外側２段の外側カツタ（16a）を配
設した構成に特徴を有し、該外側カツタ（16a）は第１
実施例の外側カツタ（6a）と（6b）に相当する作用効果
を有する。FIG. 3 shows a second embodiment of the present invention. Compared to the first embodiment, the outer cutter (16a) is provided at the tip end of the cutter head (5) at two circumferentially spaced inner and outer stages. The outer cutter (16a) is characterized in that
It has the effect equivalent to the outer cutters (6a) and (6b) of the embodiment.
（発明の効果） 本発明は、前述のような構成からなり、複数の推進ジ
ヤツキによって装置全体に推力が与えられ、装置本体の
前側に突出し回転駆動装置により回転されるカツタヘツ
ドの外側カツタと切削カツタによって、既設管の外周地
山が連続掘削され既設管が連続切削、撤去されるととも
に、地山周壁がカツタヘツドとスキンプレートによって
シールが安定され新管が併行して布設され、既設管と新
管布設替え性能、能率が大幅に向上されている。(Effects of the Invention) The present invention is configured as described above, and a thrust is applied to the entire apparatus by a plurality of propulsion jacks, and the outer cutter and the cutting cutter of the cutter head projecting to the front side of the apparatus main body and rotated by the rotary driving device. As a result, the surrounding ground of the existing pipe is continuously excavated, the existing pipe is continuously cut and removed, and the surrounding wall of the ground is stabilized by the cutter head and skin plate, and the new pipe is laid in parallel, and the existing pipe and the new pipe are laid. Replacement performance and efficiency have been greatly improved.
以上本発明を実施例について説明したが、勿論本発明
はこのような実施例にだけ局限されるものではなく、本
発明の精神を逸脱しない範囲内で種種の設計の改変を施
しうるものである。Although the present invention has been described with reference to the embodiments, the present invention is, of course, not limited to such embodiments, and various design modifications can be made without departing from the spirit of the present invention. .
第１図は本発明の第１実施例を示す縦断機構図、第２図
は第１図のII−II部分の断面図、第３図は第２実施例を
示す要部の縦断機構図である。 １……装置本体、２……スキンプレート ３……推進ジヤツキ、４……排出装置 ５……カツタヘツド、6a,b−16a……外側カツタ 6c……切削カツタFIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. is there. DESCRIPTION OF SYMBOLS 1 ... Device main body, 2 ... Skin plate 3 ... Propulsion jack, 4 ... Discharge device 5 ... Cutter head, 6a, b-16a ... Outer cutter 6c ... Cutting cutter
Claims (1)
数の推進ジヤツキおよび排出装置等を具備したトンネル
掘削装置において、前記装置本体の前側に回転駆動装置
によって回転駆動される筒状のカツタヘツドを突設し、
該カツタヘツドの前部に既設管の外側カツタおよび同既
設管の切削カツタを配設したことを特徴とする環状掘削
装置。1. A tunnel excavator having a skin plate, a plurality of propulsion jacks, and a discharge device disposed on an apparatus main body, wherein a cylindrical cutter head rotationally driven by a rotary driving device is provided at a front side of the apparatus main body. Protruding,
An annular drilling machine, wherein an outer cutter of an existing pipe and a cutting cutter of the existing pipe are disposed at a front portion of the cutter head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63292410A JP2578184B2 (en) | 1988-11-21 | 1988-11-21 | Ring drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63292410A JP2578184B2 (en) | 1988-11-21 | 1988-11-21 | Ring drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02140396A JPH02140396A (en) | 1990-05-30 |
| JP2578184B2 true JP2578184B2 (en) | 1997-02-05 |
Family
ID=17781426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63292410A Expired - Fee Related JP2578184B2 (en) | 1988-11-21 | 1988-11-21 | Ring drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2578184B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4646138B2 (en) * | 2006-03-17 | 2011-03-09 | 株式会社推研 | Existing concrete pipe crushing machine |
| JP5396454B2 (en) * | 2011-11-10 | 2014-01-22 | サン・シールド株式会社 | Excavator |
| CN112483104B (en) * | 2020-12-23 | 2022-05-27 | 中铁工程装备集团有限公司 | Pipe-inserting method pipeline updating heading machine and construction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61158597A (en) * | 1984-12-28 | 1986-07-18 | 日立造船株式会社 | Shielding excavator |
-
1988
- 1988-11-21 JP JP63292410A patent/JP2578184B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02140396A (en) | 1990-05-30 |
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