JPH0542880U - Telescopic flexible tube - Google Patents
Telescopic flexible tubeInfo
- Publication number
- JPH0542880U JPH0542880U JP9028491U JP9028491U JPH0542880U JP H0542880 U JPH0542880 U JP H0542880U JP 9028491 U JP9028491 U JP 9028491U JP 9028491 U JP9028491 U JP 9028491U JP H0542880 U JPH0542880 U JP H0542880U
- Authority
- JP
- Japan
- Prior art keywords
- ground
- flexible tube
- pipe
- buried
- joint portion
- 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
- Joints Allowing Movement (AREA)
Abstract
(57)【要約】
【目的】 沈下するおそれのある地盤に埋設される管路
と、沈下の起こらない構造物との間を接続する伸縮可撓
管において、埋設管路への継手部をこの埋設管路の管端
部に確実に追従させて漏水を防止する。
【構成】 埋設管路1への継手部6の近傍における伸縮
可撓管3の外面に、この外面から地盤内へ向けて入り込
む規制板7が取り付けられる。継手部6を埋設管路1の
管軸芯O1 に対して傾斜させるように作用するモーメン
トMが、規制板7を介して地盤で受けられ、この傾斜に
もとづく漏水の発生が防止される。
(57) [Summary] [Purpose] In a flexible pipe that connects between a pipeline buried in the ground that may sink and a structure that does not sink, the joint to the buried pipeline is Make sure to follow the pipe end of the buried pipe to prevent water leakage. [Structure] A regulating plate 7 is attached to the outer surface of the expandable flexible tube 3 near the joint 6 to the buried pipeline 1 from the outer surface toward the ground. A moment M acting to incline the joint portion 6 with respect to the pipe axis O 1 of the buried pipeline 1 is received by the ground via the regulation plate 7, and leakage of water due to this inclination is prevented.
Description
【0001】[0001]
本考案は、沈下するおそれのある地盤に埋設される管路と沈下の起こらない構 造物との間を接続するための伸縮可撓管に関する。 The present invention relates to a telescopic flexible tube for connecting a pipeline embedded in the ground that may sink and a structure that does not sink.
【0002】[0002]
沈下するおそれのある地盤に建設されるコンクリート構造物においては、地盤 沈下しても構造物自体が沈下したり傾いたりしないように、沈下するおそれのな い地盤層まで基礎杭を打設するなどの対策がとられている。ところが、この構造 物に接続されるべき管路は、沈下するおそれのある地盤中に敷設されているため 、地盤沈下が起こると同様に沈下することになり、この埋設管路とコンクリート 構造物との間で大きな変位が生じることになる。 For concrete structures that are built on the ground that may sink, foundation piles should be laid down to the ground layer where there is no danger of sinking so that the structure itself does not sink or tilt even if the ground sinks. The measures are taken. However, since the pipeline that should be connected to this structure is laid in the ground where there is a risk of subsidence, it will also subside when ground subsidence occurs, and this buried pipeline and concrete structure There will be a large displacement between them.
【0003】 従来、このような変位を吸収するため、図3に示すように、沈下するおそれの ある地盤に敷設された埋設管路11と、沈下の起こらない構造物12との間は、 中間部に蛇腹状の伸縮可撓部14を有した伸縮可撓管13にて接続されている。 この伸縮可撓管13の一端の外周には構造物12の壁中に埋設されるフランジ1 5が形成され、その他端には、埋設管路11の管端部が挿入されてこの管端部を 接続するための継手部16が形成されている。Conventionally, in order to absorb such displacement, as shown in FIG. 3, an intermediate portion is provided between the buried pipeline 11 laid on the ground where there is a possibility of sinking and the structure 12 where sinking does not occur. A flexible tube 13 having a bellows-shaped flexible portion 14 is connected to the flexible tube 13. A flange 15 to be embedded in the wall of the structure 12 is formed on the outer circumference of one end of the expandable flexible tube 13, and a pipe end of the embedded pipe line 11 is inserted at the other end thereof. Is formed with a joint portion 16 for connecting.
【0004】[0004]
ところで、図3のような構成の従来の伸縮可撓管13を用いた場合は、地盤沈 下に伴って、伸縮可撓管13の軸心OがS字状になるように屈曲しなければなら ない。しかし、一般に伸縮可撓部14の曲げ剛性の方が継手部16の曲げ剛性よ りも大きいため、地盤沈下が大きくなると、図4に示すように、伸縮可撓部14 の曲げ剛性によって埋設管路11の管端部への継手部16の追従が阻害され、継 手部16が埋設管路11の軸心O1 に対して傾斜してしまい、この継手部16か ら漏水することがあるという問題点がある。By the way, when the conventional expandable flexible tube 13 having the structure as shown in FIG. 3 is used, the axis O of the expandable flexible tube 13 must be bent so as to have an S-shape as the ground subsides. Not. However, since the flexural rigidity of the expandable / contractible flexible part 14 is generally larger than the flexural rigidity of the joint part 16, when the ground subsidence becomes large, as shown in FIG. Follow-up of the joint portion 16 to the pipe end portion of the passage 11 may be hindered, the joint portion 16 may be inclined with respect to the axis O 1 of the buried pipe passage 11, and water may leak from the joint portion 16. There is a problem.
【0005】 また、これを防止するために、伸縮可撓管13として、伸縮可撓部14の曲げ 剛性の小さいものを用いることも考えられるが、その場合は土圧に対する耐力が 小さく、埋設管路11の埋設深さに制限を受け、実用上の対応できないという問 題点がある。In order to prevent this, it is conceivable to use, as the expandable flexible tube 13, a flexible elastic part 14 having a small bending rigidity. There is a problem that the depth of burial of the road 11 is limited and it is not practically applicable.
【0006】 さらに、図5に示すように、継手部16が埋設管路11の管端部の沈下に確実 に追従するように、継手部16と伸縮可撓部14との間に長さLの比較的長尺の 直管部17を設けて対応することもできるが、その分だけ高価になるという問題 点がある。Further, as shown in FIG. 5, the length L between the joint portion 16 and the telescopic flexible portion 14 is set so that the joint portion 16 surely follows the sinking of the pipe end portion of the buried pipeline 11. Although a relatively long straight pipe section 17 can be provided to deal with this, there is a problem in that it is expensive accordingly.
【0007】 そこで本考案はこのような問題点を解決し、埋設管路側の継手部をこの埋設管 路の管端部に確実に追従させることができて漏水のおそれがなく、しかも長い直 管部を設けることなしに安価に構成できる伸縮可撓管を提供することを目的とす る。Therefore, the present invention solves such a problem, and the joint portion on the side of the buried pipeline can be surely made to follow the pipe end portion of the buried pipeline, and there is no risk of water leakage, and a long straight pipe is also provided. An object of the present invention is to provide a telescopic flexible tube which can be constructed at low cost without providing a section.
【0008】[0008]
上記目的を達成するため本考案は、沈下するおそれのある地盤に埋設される管 路と沈下の起こらない構造物との間を接続するための伸縮可撓管を、端部に継手 部を有するとともに、この継手部の近傍の外面に、この外面から地盤内に向けて 入り込む規制板を取り付けた構成としたものである。 In order to achieve the above object, the present invention has an expandable flexible tube for connecting between a pipeline buried in the ground that may sink and a structure that does not sink, and a joint portion at the end. At the same time, on the outer surface in the vicinity of the joint portion, a regulation plate that enters the ground from this outer surface is attached.
【0009】[0009]
このような構成によれば、地盤沈下時に伸縮可撓部の曲げ剛性によって継手部 を埋設管路の管軸心に対して傾斜させるようなモーメントが作用しても、そのモ ーメントが規制板を介して地盤により受けられるため、継手部は埋設管路の管端 部の沈下に確実に追従する。 According to this structure, even when a moment that tilts the joint portion with respect to the pipe axis of the buried pipeline acts due to the bending rigidity of the expansion and contraction flexible portion when the ground subsides, the moment causes the restriction plate to move. Since it is received by the ground through the joint, the joint reliably follows the subsidence of the pipe end of the buried pipeline.
【0010】[0010]
【実施例】 図1において、1は沈下するおそれのある地盤に埋設された埋設管路であり、 この地盤中において沈下が起こらないように建設されたコンクリート製の構造物 2に接続される。埋設管路1の管端部1aと構造物2の壁との間には、ゴムなど の柔軟な材料で形成された伸縮可撓管3が介装されている。Embodiment 1 In FIG. 1, reference numeral 1 denotes a buried pipeline that is buried in the ground where there is a risk of subsidence, and is connected to a concrete structure 2 constructed so that subsidence does not occur in this ground. An expandable flexible tube 3 made of a flexible material such as rubber is interposed between the tube end 1a of the buried pipeline 1 and the wall of the structure 2.
【0011】 伸縮可撓管3は、それぞれ短尺の直管にて構成された一端部3aと他端部3b とを有し、これらの中間部に蛇腹状の伸縮可撓部4が設けられ、この伸縮可撓部 4において伸縮と屈曲とが自在なように構成されている。この伸縮可撓管3の一 端部3aの外周に設けられたフランジ5が構造物2の壁内に埋設されることで、 この伸縮可撓管3が構造物2に固定されている。伸縮可撓管3の他端部3bの先 端には、埋設管路1の管端部1aが挿入されることでこの管端部1aに接続され る受口状の継手部6が形成されている。The telescopic flexible tube 3 has one end 3a and the other end 3b, each of which is composed of a short straight tube, and a bellows-shaped telescopic flexible portion 4 is provided in an intermediate portion between them. The flexible portion 4 is configured to be flexible and flexible. The expandable flexible tube 3 is fixed to the structure 2 by embedding a flange 5 provided on the outer periphery of the one end 3a of the expandable flexible tube 3 in the wall of the structure 2. At the front end of the other end 3b of the expansion / contraction flexible tube 3, the pipe end 1a of the buried pipeline 1 is inserted to form a socket-like joint portion 6 connected to the pipe end 1a. ing.
【0012】 継手部6の近傍における他端部3bの外面には、管軸心に対し垂直に配置され て地盤内に入り込む規制板7が取り付けられている。この規制板7は、図2に示 すように、他端部3bの半周程度を取り巻くように形成され、図示の例では矩形 状の板材が他端部3bに溶接された構成となっている。On the outer surface of the other end portion 3b in the vicinity of the joint portion 6, a regulation plate 7 that is arranged perpendicularly to the pipe axis and enters the ground is attached. As shown in FIG. 2, the regulation plate 7 is formed so as to surround a half circumference of the other end portion 3b, and in the illustrated example, a rectangular plate material is welded to the other end portion 3b. ..
【0013】 このような構成において、地盤沈下にともない構造物2に対して埋設管路1が 沈下した場合は、図1に示すように管軸心OがS字状となるように伸縮可撓管3 が屈曲することにで、この沈下時の変位が吸収される。その際に、伸縮可撓部4 の曲げ剛性によって、継手部6を埋設管路1の管軸心O1 に対して傾斜させるよ うなモーメントMが作用するが、このモーメントMは、規制板7を介して地盤に て確実に受けられる。そのため、継手部6が埋設管路1の管端部1aに完全に追 従し、隙間を生じて漏水が発生するような事態の発生が防止される。しかも、伸 縮可撓管3の他端部3bに規制板7を取り付けるだけで構成できるので、安価な 構成とすることができる。In such a configuration, when the buried pipeline 1 sinks to the structure 2 due to the subsidence of the ground, as shown in FIG. 1, the flexible axis expands and contracts so that the pipe axis O has an S-shape. The bending of the pipe 3 absorbs the displacement at the time of the settlement. At that time, due to the bending rigidity of the expansion / contraction flexible portion 4, a moment M for inclining the joint portion 6 with respect to the pipe axis O 1 of the buried pipeline 1 acts. It can be reliably received through the ground. Therefore, it is possible to prevent a situation in which the joint portion 6 completely follows the pipe end portion 1a of the buried pipe passage 1 to form a gap and cause water leakage. Moreover, since it can be constructed by only attaching the regulation plate 7 to the other end 3b of the flexible tube 3, the construction can be made inexpensive.
【0014】[0014]
【考案の効果】 以上述べたように本考案によれば、継手部の近傍に規制板を取り付けたため、 地盤沈下時に伸縮可撓部の曲げ剛性によって継手部を傾斜させるようなモーメン トが作用しても、そのモーメントは規制板を介して地盤にて受けられるため、継 手部は埋設管路の管端部に確実に追従し、したがって漏水を確実に防止でき、し かも規制板を取り付けるだけでよいので安価な構成とすることができる。EFFECTS OF THE INVENTION As described above, according to the present invention, since the regulation plate is attached in the vicinity of the joint portion, when the ground subsides, a moment acts to incline the joint portion due to the bending rigidity of the elastic flexible portion. However, since the moment is received by the ground via the regulation plate, the joint part can reliably follow the pipe end of the buried pipeline, thus preventing water leakage reliably. Since it is sufficient, an inexpensive structure can be obtained.
【図1】本考案の一実施例の伸縮可撓管の縦断面図であ
る。FIG. 1 is a vertical cross-sectional view of a telescopic flexible tube according to an embodiment of the present invention.
【図2】図1におけるII−II線に沿った横断面図であ
る。FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
【図3】従来の伸縮可撓管の縦断面図である。FIG. 3 is a vertical cross-sectional view of a conventional expandable flexible tube.
【図4】図3の伸縮可撓管の地盤沈下時の状態を示す縦
断面図である。FIG. 4 is a vertical cross-sectional view showing a state of the expandable flexible tube of FIG. 3 when the ground is subsided.
【図5】従来の他の伸縮可撓管の縦断面図である。FIG. 5 is a longitudinal sectional view of another conventional expandable flexible tube.
1 埋設管路 2 構造物 3 伸縮可撓管 6 継手部 7 規制板 1 Buried pipeline 2 Structure 3 Flexible tube 6 Joint part 7 Regulation plate
Claims (1)
管路と沈下の起こらない構造物との間を接続するための
伸縮可撓管であって、端部に継手部を有するとともに、
この継手部の近傍の外面に、この外面から地盤内に向け
て入り込む規制板を取り付けたことを特徴とする伸縮可
撓管。1. An expandable and contractible flexible tube for connecting between a pipeline embedded in the ground that may sink and a structure that does not sink, having a joint portion at its end,
A stretchable flexible tube having a restriction plate attached to the outer surface in the vicinity of the joint portion so as to enter the ground from the outer surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991090284U JP2543091Y2 (en) | 1991-11-05 | 1991-11-05 | Telescopic flexible tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991090284U JP2543091Y2 (en) | 1991-11-05 | 1991-11-05 | Telescopic flexible tube |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0542880U true JPH0542880U (en) | 1993-06-11 |
JP2543091Y2 JP2543091Y2 (en) | 1997-08-06 |
Family
ID=13994223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1991090284U Expired - Lifetime JP2543091Y2 (en) | 1991-11-05 | 1991-11-05 | Telescopic flexible tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2543091Y2 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6241987U (en) * | 1985-08-31 | 1987-03-13 | ||
JPS6458395A (en) * | 1987-08-31 | 1989-03-06 | Nec Corp | Method for treating waste water containing ferrous ion |
JPH02121691U (en) * | 1989-03-17 | 1990-10-03 | ||
JPH02304298A (en) * | 1989-05-19 | 1990-12-18 | Riken Corp | Repairing joint for stainless steel pipe and repairing method thereof |
-
1991
- 1991-11-05 JP JP1991090284U patent/JP2543091Y2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6241987U (en) * | 1985-08-31 | 1987-03-13 | ||
JPS6458395A (en) * | 1987-08-31 | 1989-03-06 | Nec Corp | Method for treating waste water containing ferrous ion |
JPH02121691U (en) * | 1989-03-17 | 1990-10-03 | ||
JPH02304298A (en) * | 1989-05-19 | 1990-12-18 | Riken Corp | Repairing joint for stainless steel pipe and repairing method thereof |
Also Published As
Publication number | Publication date |
---|---|
JP2543091Y2 (en) | 1997-08-06 |
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