JPH0726886A - Propeller - Google Patents
PropellerInfo
- Publication number
- JPH0726886A JPH0726886A JP17133793A JP17133793A JPH0726886A JP H0726886 A JPH0726886 A JP H0726886A JP 17133793 A JP17133793 A JP 17133793A JP 17133793 A JP17133793 A JP 17133793A JP H0726886 A JPH0726886 A JP H0726886A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- propulsion
- propelling
- coil
- 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.)
- Pending
Links
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、推進管の推進を、地上
から実施するに当り、対象地中の適切な位置に推進管を
導くためのガイド管を、地中に埋設して推進する推進装
置に関し、詳述すれば、対象地中に推進管を導くための
ガイド管と、地中に埋設された前記ガイド管の内側に挿
通させる推進管と、前記推進管に備えた発信コイルとそ
の発信コイルからの信号を地上で検出する地上受信コイ
ルとからなる位置検出装置とを備えた推進装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, when performing propulsion of a propulsion pipe from the ground, a guide pipe for guiding the propulsion pipe to an appropriate position in the target ground is embedded in the ground for propulsion. Regarding the propulsion device, in detail, a guide pipe for guiding the propulsion pipe into the target ground, a propulsion pipe inserted into the inside of the guide pipe buried in the ground, and a transmission coil provided in the propulsion pipe. The present invention relates to a propulsion device including a position detecting device including a ground receiving coil that detects a signal from the transmitting coil on the ground.
【0002】[0002]
【従来の技術】従来、この種の推進装置は、地面を掘り
下げ、或いは押し込んで前記ガイド管を埋設し、そのガ
イド管の内側に推進管を挿通して所定位置まで導いた後
に、前記位置検出装置により推進位置を確認しながらそ
の推進管で地中を推進するもので、図2に示すように、
ガイド管2の内周には推進管1を中央部に保持するため
の複数本のガイドレール2aを端部、或いは、その軸心
に沿って突出させていた。2. Description of the Related Art Conventionally, in this type of propulsion device, the guide pipe is buried by digging or pushing the ground, and the propulsion pipe is inserted inside the guide pipe to guide it to a predetermined position, and then the position detection is performed. The propelling pipe is used to propel the ground while checking the propulsion position by the device. As shown in Fig. 2,
On the inner circumference of the guide tube 2, a plurality of guide rails 2a for holding the propulsion tube 1 in the central portion are projected at the end portion or along the axis thereof.
【0003】[0003]
【発明が解決しようとする課題】しかし、上述の推進管
1の周部には、掘削時の推進管の姿勢調節のためにスタ
ビライザSを設けてあるため、推進作業が終了して推進
管を引き抜くときに、ガイド管のガイドレール2aとス
タビライザSとが接当して、推進管1を破損するおそれ
がある。そのために、引き抜き作業を時間をかけて慎重
に行う必要があり、作業の効率化が望まれていた そこで、推進管に備えた発信コイルとその発信コイルか
らの信号を地上で検出する地上受信コイルとからなる位
置検出装置を用いて推進管がガイド管の近傍まで引き抜
かれたことを検出し、推進管がガイド管近傍に来るまで
は高速に引き抜き、推進管がガイド管近傍にきたことが
検出された後には、慎重に引き抜くようにすることが考
えられる。しかし、上述の位置検出装置は、推進管を高
速に引き抜き作業を行うほどには精度が得られるもので
はないという欠点があった。However, since the stabilizer S is provided in the peripheral portion of the above-mentioned propulsion pipe 1 for adjusting the attitude of the propulsion pipe during excavation, the propulsion work is completed and the propulsion pipe is closed. When pulling out, the guide rail 2a of the guide tube and the stabilizer S may come into contact with each other and damage the propulsion tube 1. For this reason, it was necessary to carefully pull out the work over time, and it was desired to improve the work efficiency.Therefore, the transmitter coil provided in the propulsion pipe and the ground receiving coil that detects the signal from the transmitter coil on the ground. Detecting that the propulsion pipe has been pulled out to the vicinity of the guide pipe by using the position detection device consisting of and, it is pulled out at high speed until the propulsion pipe comes close to the guide pipe, and it is detected that the propulsion pipe has come near the guide pipe. It is possible to carefully pull it out after being treated. However, the position detecting device described above has a drawback in that the accuracy is not so high that the propulsion pipe is pulled out at a high speed.
【0004】本発明の目的は、上述の問題点に鑑み、地
中に埋設され、推進管を導くためのガイド管から、その
内側に挿通させた推進管を、破損することなく効率的に
引き抜くことを可能にした推進装置を提供する点にあ
る。In view of the above problems, an object of the present invention is to efficiently withdraw a propulsion pipe, which is embedded in the ground and is inserted therein, from a guide pipe for guiding the propulsion pipe without damage. The point is to provide a propulsion device that makes it possible.
【0005】[0005]
【課題を解決するための手段】この目的を達成するため
の本発明における推進装置の特徴構成は、ガイド管に、
前記発信コイルからの信号を検出する地中受信コイルを
設けてある点にある。To achieve this object, the propulsion device according to the present invention is characterized in that a guide tube is provided.
An underground receiving coil for detecting a signal from the transmitting coil is provided.
【0006】[0006]
【作用】地中での推進管の推進位置を検出する位置検出
装置のうち、推進管に備えた発信コイルからの信号を検
出する地中受信コイルをガイド管の先端側に設けること
で、その地中受信コイルの出力に基づいて、推進管がガ
イド管の近傍にまで引き抜かれたことが極めて正確に検
出できるので、ガイド管の近傍までは推進管を高速に引
く抜き、その後は、推進管のスタビライザがガイド管の
ガイドレールに接当しないように、例えば引き抜き力が
増した場合には推進管を少し回転させて引き抜くといっ
たように慎重に引き抜くのである。In the position detecting device for detecting the propulsion position of the propulsion pipe in the ground, the underground receiving coil for detecting a signal from the transmitting coil provided in the propulsion pipe is provided on the tip side of the guide pipe, thereby Based on the output of the underground receiving coil, it can be detected extremely accurately that the propulsion pipe has been pulled out to the vicinity of the guide pipe.Therefore, pull out the propulsion pipe to the vicinity of the guide pipe at high speed, and then pull out the propulsion pipe. In order to prevent the stabilizer from contacting the guide rail of the guide tube, for example, when the pulling force increases, the propulsion tube is slightly rotated to pull it out.
【0007】[0007]
【発明の効果】上述の発明によれば、推進管の引く抜き
作業時におけるガイド管との位置関係を、地上における
位置検出用として推進管に設けた発信コイルの信号を検
出する地中検出コイルをガイド管に設けるという極めて
簡単な機構で正確に検出できるので、地中に埋設され、
推進管を導くためのガイド管から、その内側に挿通させ
た推進管を、破損することなく効率的に引き抜くこと
を、経済性を損なうことなく可能にした推進装置を提供
することができるようになった。According to the above-mentioned invention, the underground detection coil for detecting the signal of the transmission coil provided on the propulsion pipe for detecting the position on the ground for the positional relationship with the guide pipe at the time of pulling out the propulsion pipe. Since it can be accurately detected with a very simple mechanism that is installed in the guide pipe, it is buried in the ground,
(EN) Provided is a propulsion device capable of efficiently extracting a propulsion pipe inserted therein from a guide pipe for guiding the propulsion pipe without damaging it without impairing economy. became.
【0008】[0008]
【実施例】以下に本発明の実施例を図面に基づいて説明
する。図3に示すように、地上に推進用設備Aを設け、
その推進用設備Aから地中に向けて推進を行うに当り、
予め設定されている推進始点Bの所定深度に推進管1を
導くために、推進管1を内側に挿通させて地中ガイドす
るガイド管2を、前記推進始点Bに設けられたピットC
に向けて地中埋設する。Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 3, a propulsion facility A is installed on the ground,
When carrying out propulsion from the propulsion equipment A toward the ground,
In order to guide the propulsion pipe 1 to a predetermined depth of the propulsion start point B which has been set in advance, a guide pipe 2 for guiding the propulsion pipe 1 through the inside is provided at a pit C provided at the propulsion start point B.
Will be buried underground.
【0009】即ち、推進管1に対する推進機3によって
挟持可能で、且つ、一端側にガイド管2を同一軸心P上
で連結自在な連結部4を設けた長尺体5を準備してお
き、その長尺体5に前記連結部4を介して前記ガイド管
2を連結した状態で、推進機3によって長尺体5を挟持
して、ガイド管2を地中に押し込んで埋設する。That is, there is prepared a long body 5 which can be held by the propulsion device 3 with respect to the propulsion pipe 1 and which has a connecting portion 4 at one end side thereof for connecting the guide pipe 2 on the same axis P. While the guide tube 2 is connected to the elongated body 5 via the connecting portion 4, the elongated body 5 is sandwiched by the propulsion device 3 and the guide tube 2 is pushed into the ground to be embedded.
【0010】推進用設備Aは、推進管1を挟持して地中
に押し込む推進機3や、推進管1を周部に巻回した水平
設置型巻取りドラム6や、推進管1の先端部に設置され
る推進ヘッド先導体1aの回転・出退駆動及び推進機3
の管挟持・出退駆動等をする油圧駆動装置7や、推進時
等に用いる滑材を撹拌し送液する滑材供給装置8を、移
動自在な車両9に搭載して形成してある。The propulsion equipment A includes a propulsion device 3 that holds the propulsion pipe 1 and pushes it into the ground, a horizontal installation type take-up drum 6 around which the propulsion pipe 1 is wound, and a tip portion of the propulsion pipe 1. Of the propulsion head tip conductor 1a installed in the
The hydraulic drive device 7 for pinching / moving the pipes and the like and the lubricant supply device 8 for agitating and feeding the lubricant used during propulsion are mounted on the movable vehicle 9.
【0011】図2に示すように、ガイド管2の内周には
推進管1を中央部、つまり共通軸心P位置に保持するた
めの複数本のガイドレール2aをその軸心に沿って突出
させており、上述の推進管1のうち、先端部の推進ヘッ
ド1の周部には、掘削時の推進管のローリング防止のた
めにスタビライザSを設けてある。As shown in FIG. 2, a plurality of guide rails 2a for holding the propulsion pipe 1 at the central portion, that is, the common axial center P position, are projected along the inner periphery of the guide pipe 2 along the axial center thereof. In the above-mentioned propulsion pipe 1, a stabilizer S is provided around the periphery of the propulsion head 1 at the tip end to prevent rolling of the propulsion pipe during excavation.
【0012】図1に示すように、先端部の推進ヘッド1
の周部には発信コイル1bを設けてあり、ガイド管2の
先端部にはその発信コイル1bからの信号を検出する地
中受信コイル2bを設けてある。ここに、上述の発信コ
イル1bは、図4に示すように、推進ヘッド先導体1a
の地中での位置を地上で検出する地上受信コイル11と
で位置検出装置12を構成するもので、位置検出装置1
2による検出位置に基づいて油圧駆動装置7を制御し
て、推進管1の先端部に設置される推進ヘッド先導体1
aの回転・出退駆動をさせる。As shown in FIG. 1, the propulsion head 1 at the tip portion is shown.
A transmitting coil 1b is provided on the periphery of the guide tube 2, and an underground receiving coil 2b for detecting a signal from the transmitting coil 1b is provided at the tip of the guide tube 2. Here, the above-mentioned transmitting coil 1b, as shown in FIG.
The position detecting device 12 is composed of the ground receiving coil 11 for detecting the position in the ground on the ground.
The hydraulic drive device 7 is controlled based on the detection position of the propulsion head leading conductor 1 installed at the tip of the propulsion pipe 1.
Rotate and move back and forth in a.
【0013】推進作業が終了して推進管1を引き抜くと
きには、終了地点に設けたピット(図示せず)におい
て、先端の推進管1から推進ヘッド先導体1aを取り外
し、そこに推進管1とほぼ同径の埋設管の端部を連結し
た後に、油圧駆動装置7により推進管1を引き抜き、推
進管1を水平設置型巻取りドラム6に巻き取ることによ
り、地中に埋設管を布設するのである。When the propulsion work is completed and the propulsion pipe 1 is pulled out, the propulsion head tip conductor 1a is detached from the propulsion pipe 1 at the tip in a pit (not shown) provided at the end point, and the propulsion pipe 1 is almost there. After connecting the ends of the buried pipes of the same diameter, the hydraulic drive device 7 pulls out the propulsion pipe 1 and winds the propulsion pipe 1 around the horizontal installation type winding drum 6, so that the buried pipe is laid in the ground. is there.
【0014】推進管1の巻き取り作業時には、発信コイ
ル1bからの信号をガイド管2の先端部に設けた地中受
信コイル2bで検出して、スタビライザSが設けられた
先端の推進管1がガイド管2の近傍位置まで回収された
ことを検出するまでは、油圧駆動装置7により最大スト
ロークで推進管1を引き戻し、先端の推進管1がガイド
管2の近傍位置まで回収されたことを検出した後は、ス
タビライザSがガイドレール2aに接当して破損するこ
とがないように、回収ストロークを小さくして、回収し
ているにもかかわらず地中受信コイル2bの検出値が変
化しない場合等には、推進管を回転等させて慎重に回収
する。During the winding operation of the propulsion pipe 1, the signal from the transmitting coil 1b is detected by the underground receiving coil 2b provided at the tip of the guide pipe 2, and the propulsion pipe 1 at the tip provided with the stabilizer S is detected. Until it is detected that the propulsion pipe 1 has been recovered to the position near the guide pipe 2, the hydraulic drive device 7 pulls back the propulsion pipe 1 with the maximum stroke, and it is detected that the propulsion pipe 1 at the tip is recovered to the position near the guide pipe 2. After that, in order to prevent the stabilizer S from coming into contact with the guide rail 2a and being damaged, the recovery stroke is shortened, and the detection value of the underground receiving coil 2b does not change despite the recovery. For this purpose, carefully rotate the propulsion pipe and collect it.
【0015】以下に別実施例を説明する。 〈1〉 ガイド管2に設けたガイドレール2aの数や幅
は特に限定するものではなく任意であり、推進管1に設
けたスタビライザ1aの数も任意である。 〈2〉 先の実施例では、ガイド管2の先端側に地中受
信コイル2bを設けたものを説明したが、ガイド管2の
ガイドレール2aの形成位置より先端側であればよく、
特に先端部に限定するものではない。Another embodiment will be described below. <1> The number and width of the guide rails 2a provided in the guide tube 2 are not particularly limited, and the number of stabilizers 1a provided in the propulsion tube 1 is also arbitrary. <2> In the previous embodiment, the description has been given of the case where the underground receiving coil 2b is provided on the tip end side of the guide tube 2, but it may be on the tip end side of the guide rail 2a forming position of the guide tube 2,
It is not particularly limited to the tip.
【0016】尚、特許請求の範囲の項に、図面との対照
を便利にするために符号を記すが、該記入により本発明
は添付図面の構成に限定されるものではない。It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.
【図1】回収作業の説明図[Figure 1] Illustration of recovery work
【図2】要部の断面図FIG. 2 is a sectional view of a main part
【図3】ガイド管の設置状況図[Figure 3] Installation status of the guide tube
【図4】推進作業の説明図[Figure 4] Explanatory diagram of the propulsion work
1 推進管 1b 発信コイル 2 ガイド管 2b 地中受信コイル 11 地上受信コイル 12 位置検出装置 1 Propulsion tube 1b Transmitting coil 2 Guide tube 2b Underground receiving coil 11 Ground receiving coil 12 Position detection device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 辻本 和則 兵庫県尼崎市浜1丁目1番1号 株式会社 クボタ技術開発研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazunori Tsujimoto 1-1-1, Hama, Amagasaki City, Hyogo Prefecture Kubota Technology Development Laboratory Co., Ltd.
Claims (1)
イド管(2)と、地中に埋設された前記ガイド管(2)
の内側に挿通させる推進管(1)と、前記推進管(1)
に備えた発信コイル(1b)とその発信コイル(1b)
からの信号を地上で検出する地上受信コイル(11)と
からなる位置検出装置(12)とを備えた推進装置であ
って、 前記ガイド管(2)に、前記発信コイル(1b)からの
信号を検出する地中受信コイル(2b)を設けてある推
進装置。1. A guide pipe (2) for guiding a propulsion pipe (1) into a target ground, and the guide pipe (2) buried in the ground.
Propulsion pipe (1) to be inserted inside the pipe, and the propulsion pipe (1)
Transmitter coil (1b) for the vehicle and its transmitter coil (1b)
A position detecting device (12) comprising a ground receiving coil (11) for detecting a signal from the ground, and a signal from the transmitting coil (1b) in the guide tube (2). A propulsion device provided with an underground receiving coil (2b) for detecting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17133793A JPH0726886A (en) | 1993-07-12 | 1993-07-12 | Propeller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17133793A JPH0726886A (en) | 1993-07-12 | 1993-07-12 | Propeller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0726886A true JPH0726886A (en) | 1995-01-27 |
Family
ID=15921358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17133793A Pending JPH0726886A (en) | 1993-07-12 | 1993-07-12 | Propeller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0726886A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6640643B2 (en) | 2001-07-18 | 2003-11-04 | Denso Corporation | Capacitive pressure sensor with multiple capacitive portions |
-
1993
- 1993-07-12 JP JP17133793A patent/JPH0726886A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6640643B2 (en) | 2001-07-18 | 2003-11-04 | Denso Corporation | Capacitive pressure sensor with multiple capacitive portions |
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