JP2642716B2 - Propulsion pipe for propulsion method - Google Patents
Propulsion pipe for propulsion methodInfo
- Publication number
- JP2642716B2 JP2642716B2 JP63314257A JP31425788A JP2642716B2 JP 2642716 B2 JP2642716 B2 JP 2642716B2 JP 63314257 A JP63314257 A JP 63314257A JP 31425788 A JP31425788 A JP 31425788A JP 2642716 B2 JP2642716 B2 JP 2642716B2
- Authority
- JP
- Japan
- Prior art keywords
- propulsion
- pipe
- head
- rigid short
- rigid
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 238000010276 construction Methods 0.000 description 9
- 238000004804 winding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- 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、推進用ヘッドに連結される推進工法用推進
管に関する。Description: TECHNICAL FIELD The present invention relates to a propulsion pipe for a propulsion method connected to a propulsion head.
従来の推進管は、地中推進される前には互いに分離し
た状態の剛性長管部材と、屈曲自在な可撓部材とから形
成してあった。A conventional propulsion pipe is formed of a rigid long pipe member separated from each other and a bendable flexible member before being propelled underground.
しかし、推進管を地中推進させる施工現場では、剛性
長管部材と可撓部材とを連結しながら地中に押込まなけ
ればならず、施工のための手間が多くかかるという欠点
があるばかりか、連結すべき部材が夫々分離しているた
めに、施工現場までの運搬及び保管に注意を多くはらわ
ねばならないという欠点があった。However, at the construction site where the propulsion pipe is underground propelled, the rigid long pipe member and the flexible member must be pushed into the ground while being connected, which not only has the disadvantage of requiring much labor for construction. However, since the members to be connected are separated from each other, there is a drawback in that much attention must be paid to transportation and storage to the construction site.
本発明の目的は、運搬及び保管が楽で、施工性の良い
推進管を提供する点にある。An object of the present invention is to provide a propulsion pipe which is easy to transport and store and has good workability.
本発明の推進工法用推進管の特徴構成は、複数の剛性
短管部と、この複数の剛性短管部間に各別に介在する屈
曲自在な可撓部とから成り、これら複数の剛性短管部と
可撓部とを、一体に収納可能に連結してあるところにあ
り、その作用効果は、次の通りである。The characteristic structure of the propulsion pipe for a propulsion method according to the present invention includes a plurality of rigid short pipe sections and a bendable flexible section separately interposed between the plurality of rigid short pipe sections. The portion and the flexible portion are connected so as to be integrally housed, and the operation and effect are as follows.
つまり、複数の剛性短管部と複数の可撓部とが互いに
連結されている推進管は、施工に最低必要な長さがあれ
ば一本準備するだけで良いために、従来のような分離さ
れた部材点数の多い推進管に比べて、その保管が容易で
あるばかりか、それを地中推進させる施工現場まで収納
した状態で楽に運搬でき、その上、施工現場では、必要
長さの推進管を組立てることなくすぐにそのまま押込ん
で地中推進させられる。In other words, the propulsion pipe in which the plurality of rigid short pipe sections and the plurality of flexible sections are connected to each other only needs to be prepared as long as it has the minimum length required for construction. Compared to a propulsion pipe with a large number of parts, not only is it easier to store it, but it can also be transported easily with it stored to the construction site where it can be propelled underground. It can be pushed underground immediately without assembling the pipe.
また、複数の剛性短管部と可撓部との連結は、推進管
が一体に収納可能な状態に行われているから、夫々（各
剛性短管部・可撓部）が繋がっており、その状態で長手
方向に沿った押し引きが可能となる。よって、例えば、
巻取装置に巻取収納してある状態から推進管を順次繰り
出して推進させたり、又は、到達位置に推進管が到達し
た状態でその推進管先端に引込管を連結して、推進管を
地中に引き戻すことによって、前記引込管を地に引き込
んで埋設するといったことを簡単に、且つ、スピーディ
ーに実施することが可能となる。勿論、推進管の引き戻
しに伴っては、例えば、巻取装置に推進管を順次巻き取
って収納するといったことが簡単に実施できる。Further, the connection between the plurality of rigid short tube portions and the flexible portion is performed in a state in which the propulsion tube can be integrally housed, so that the respective (each rigid short tube portion / flexible portion) are connected, In this state, push-pull along the longitudinal direction becomes possible. So, for example,
The propulsion pipe is sequentially drawn out from the state where it is stored in the take-up device and propelled, or the propulsion pipe is connected to the tip of the propulsion pipe when the propulsion pipe arrives at the arrival position, and the propulsion pipe is grounded. By pulling it back inside, it is possible to easily and speedily carry out pulling the lead-in tube into the ground and burying it. Needless to say, when the propulsion tube is pulled back, for example, it is possible to easily carry out the winding of the propulsion tube in the winding device and store it.
従って、推進管の運搬及び保管が簡単で、しかも、現
場での施工をも手間少く良好にさせられ、推進工法にお
ける作業性を簡単に向上させることができると共に、推
進管の引き抜き施工にも対応でき、色々な施工方法に対
応することが可能となる。Therefore, the transportation and storage of the propulsion pipe is easy, and the on-site construction can be done with little effort and good workability, so that the workability in the propulsion method can be easily improved and the propulsion pipe can be pulled out. It is possible to cope with various construction methods.
次に、本発明の実施例を、図面に基づいて説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第２図及び第３図に示すように、施工ピット（５）内
に推進用ヘッド（１）に連結された推進管（２）を押圧
する推進用ヘッド（１）の推進用押圧部材（３）を設
け、推進管（２）を押圧部材（３）で押圧するに伴なっ
て屈曲しないように保持するガイド部材（４）を設け、
施工ピット（５）の上部外方には、推進管（２）を巻取
ってある巻装内ドラム（６）を、取外し自在に設置し
て、推進工法用推進装置を構成してある。As shown in FIGS. 2 and 3, the propulsion pressing member (3) of the propulsion head (1) presses the propulsion pipe (2) connected to the propulsion head (1) into the construction pit (5). ), And a guide member (4) for holding the propulsion pipe (2) so as not to bend as the pressing member (3) is pressed,
Outside the upper part of the construction pit (5), a winding inner drum (6) around which the propulsion pipe (2) is wound is detachably installed to constitute a propulsion device for a propulsion method.
前記推進用ヘッド（１）は、第４図に示すように、例
えば50〜70mmの小径のヘッド本体（1A）と、ヘッド本体
（1A）と同径でヘッド本体（1A）に対して前後軸芯
（Ｐ）周りに回転操作自在に先端側に取付けてある掘削
部（1B）とから成る。そして、前記掘削部（1B）には、
推進用ヘッド（１）を地中推進させるに伴って土圧を受
けて、その土圧を受けた方向に推進用ヘッド（１）の推
進方向を向けるための受圧面（Ｆ）を、先端側ほど軸芯
（Ｐ）に近接する傾斜面に形成して設けてある。As shown in FIG. 4, the propulsion head (1) has a head body (1A) having a small diameter of, for example, 50 to 70 mm, and a front-rear axis having the same diameter as the head body (1A) with respect to the head body (1A). And a digging part (1B) mounted on the tip side so as to be rotatable around the core (P). And, in the excavation part (1B),
When the propulsion head (1) receives the earth pressure as it is propelled underground, the pressure receiving surface (F) for directing the propulsion direction of the propulsion head (1) in the direction in which the propulsion head (1) receives the earth pressure is provided on the tip side. It is formed and provided on an inclined surface closer to the axis (P).
つまり、前記推進用ヘッド（１）を直進させる時は、
ヘッド本体（1A）に対して掘削部（1B）を回転させなが
ら推進させ、旋回させる時は、旋回させるべき側とは径
方向の反対側に受圧面（Ｆ）を向けて推進させれば、受
圧面（Ｆ）が土圧を受けて推進用ヘッド（１）の推進方
向が受圧面（Ｆ）と反対側に向けられる。That is, when the propulsion head (1) is moved straight,
When the excavation part (1B) is propelled while rotating with respect to the head main body (1A) and is turned, if the pressure receiving surface (F) is propelled toward the radially opposite side to the side to be turned, The pressure receiving surface (F) receives the earth pressure, and the propulsion direction of the propulsion head (1) is directed to the opposite side to the pressure receiving surface (F).
前記推進管（２）は、第１図及び第４図に示すよう
に、複数の剛性短管部（2A）（長さ約70〜300mm程度）
と、この複数の剛性短管部（2A）間に各別に介在する屈
曲自在な可撓部（2B）とから成り、これら複数の剛性短
管部（2A）と可撓部（2B）とは、地中推進させる前に、
必要長さ分を互いに連結してある。As shown in FIGS. 1 and 4, the propulsion pipe (2) has a plurality of rigid short pipe sections (2A) (about 70 to 300 mm in length).
And a flexible portion (2B), which is interposed separately between the plurality of rigid short tube portions (2A). The plurality of rigid short tube portions (2A) and the flexible portion (2B) , Before underground
The required lengths are connected to each other.
前記可撓部（2B）は、外周面を球面に形成した内筒
（９）と、内筒（９）を摺動自在に外嵌して受ける外筒
（10）とから成る球面軸受構造を形成してあり、可撓部
（2B）前後の剛性短管部（2A）どうしを、３゜〜10゜に
屈曲自在に形成して従来より小さい曲率半径に推進管
（２）を曲げられるように構成してある。The flexible portion (2B) has a spherical bearing structure including an inner cylinder (9) having an outer peripheral surface formed into a spherical surface and an outer cylinder (10) receiving the inner cylinder (9) by slidably fitting the outer cylinder. The rigid short pipe portions (2A) before and after the flexible portion (2B) are formed to be freely bendable at 3 to 10 degrees so that the propulsion tube (2) can be bent to a smaller radius of curvature than the conventional one. It is configured in.
従って、隣接する可撓部（2B）間の間隔を、例えば約
100mmに設定すれば、推進管（２）を巻装するドラム
（６）の径を、約2mに形成できる。Therefore, the interval between adjacent flexible portions (2B) is, for example, about
If it is set to 100 mm, the diameter of the drum (6) around which the propulsion pipe (2) is wound can be formed to about 2 m.
第５図に示すように、図中（11）は、前記剛性短管部
（2A）に設けた連結部で、剛性短管部（2A）を軸芯方向
に分割し、その分割短管部（2A）どうしを、着脱自在に
連結して、必要長さの一連の推進管（２）を形成できる
ように構成してある。As shown in FIG. 5, reference numeral (11) in the figure denotes a connecting portion provided on the rigid short tube portion (2A), which divides the rigid short tube portion (2A) in the axial direction, and divides the rigid short tube portion. (2A) It is configured such that a series of propulsion pipes (2) of the required length can be formed by removably connecting them.
そして、前記連結部（11）は、第５図に示すように係
合式の他のネジ嵌合式であっても良い。The connecting portion (11) may be another engagement type screw fitting type as shown in FIG.
前記可撓部（2B）は、球面軸受構造以外に、隣接する
短管部（2A）どうしを、カラーを介して屈曲自在に連結
してあっても良い。In addition to the spherical bearing structure, the flexible portion (2B) may be configured such that adjacent short pipe portions (2A) are flexibly connected to each other via a collar.
前記推進用ヘッド（１）の先端側には、回転駆動させ
られる掘削刃を設けてあっても良い。A drilling blade that is driven to rotate may be provided on the tip side of the propulsion head (1).
尚、特許請求の範囲の項に図面との対照を便利にする
為に符号を記すが、該記入により本発明は添付図面の構
造に限定されるものではない。In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the structure shown in the attached drawings.
図面は本発明に係る推進工法用推進管の実施例を示し、
第１図は要部の一部断面図、第２図は推進装置の全体側
面図、第３図は推進装置の正面図、第４図は要部の断面
図、第５図は連結部の分解斜視図である。 （１）……推進ヘッド、（2A）……剛性短管部、（2B）
……可撓部。The drawings show an embodiment of a propulsion pipe for a propulsion method according to the present invention,
1 is a partial cross-sectional view of a main part, FIG. 2 is an overall side view of the propulsion device, FIG. 3 is a front view of the propulsion device, FIG. 4 is a cross-sectional view of the main part, and FIG. It is an exploded perspective view. (1) Propulsion head, (2A) Rigid short tube, (2B)
... Flexible part.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 向野 勝彦 兵庫県尼崎市浜１丁目１番１号 久保田 鉄工株式会社技術開発研究所内 (56)参考文献 特開 昭62−189297（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Katsuhiko Mukai 1-1-1, Hama, Amagasaki-shi, Hyogo Kubota Iron Works Co., Ltd. Technology Development Laboratory (56) References JP-A-62-189297 (JP, A)
Claims (1)
推進管であって、複数の剛性短管部（2A）と、この複数
の剛性短管部（2A）間に各別に介在する屈曲自在な可撓
部（2B）とから成り、これら複数の剛性短管部（2A）と
可撓部（2B）とを、一体に収納可能に連結してある推進
工法用推進管。1. A propulsion pipe for a propulsion method connected to a propulsion head (1), wherein a plurality of rigid short pipes (2A) and a plurality of rigid short pipes (2A) are interposed between the plurality of rigid short pipes (2A). A propulsion pipe for a propulsion method, comprising a flexible portion (2B) that can be bent and connecting the plurality of rigid short tube portions (2A) and the flexible portion (2B) so as to be integrally housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63314257A JP2642716B2 (en) | 1988-12-12 | 1988-12-12 | Propulsion pipe for propulsion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63314257A JP2642716B2 (en) | 1988-12-12 | 1988-12-12 | Propulsion pipe for propulsion method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP361397A Division JP2788441B2 (en) | 1997-01-13 | 1997-01-13 | Propulsion pipe for propulsion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02161094A JPH02161094A (en) | 1990-06-20 |
| JP2642716B2 true JP2642716B2 (en) | 1997-08-20 |
Family
ID=18051174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63314257A Expired - Fee Related JP2642716B2 (en) | 1988-12-12 | 1988-12-12 | Propulsion pipe for propulsion method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2642716B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014131085A1 (en) * | 2013-02-27 | 2014-09-04 | Thalassic Subsea Pty Ltd | Deployment apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62189297A (en) * | 1986-02-14 | 1987-08-19 | 株式会社 奥村組 | Embedding pipe for curved passage |
-
1988
- 1988-12-12 JP JP63314257A patent/JP2642716B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02161094A (en) | 1990-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |