JPS6130635B2 - - Google Patents
Info
- Publication number
- JPS6130635B2 JPS6130635B2 JP55138184A JP13818480A JPS6130635B2 JP S6130635 B2 JPS6130635 B2 JP S6130635B2 JP 55138184 A JP55138184 A JP 55138184A JP 13818480 A JP13818480 A JP 13818480A JP S6130635 B2 JPS6130635 B2 JP S6130635B2
- Authority
- JP
- Japan
- Prior art keywords
- objects
- sealant
- underground conduit
- pressure
- fluid
- 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
Links
- 239000000565 sealant Substances 0.000 claims description 38
- 239000012530 fluid Substances 0.000 claims description 21
- 239000002689 soil Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow in pipes or hoses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
【発明の詳細な説明】
本発明は、一対の管内移動物体と、それら両物
体の間に充填した流動性シール剤を地下埋設導管
内に入れ、前記地下埋設導管内に加圧流体を供給
して、前記両物体とシール剤を前記地下埋設導管
内で移動させ、前記地下埋設導管の内面に前記シ
ール剤を塗布する方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention includes a pair of moving objects in a pipe, a fluid sealant filled between the two objects, and a fluid sealant filled between the two objects, which is placed in an underground conduit, and pressurized fluid is supplied into the underground conduit. The present invention relates to a method of moving both objects and a sealant within the underground conduit and applying the sealant to the inner surface of the underground conduit.
従来、第２図イに示すように、地下埋設導管１
の一端側から圧力Ｆで加圧流体を供給し、かつ、
地下埋設導管１の他端側を大気開放して、両物体
４及びシール剤２を移動させていた。 Conventionally, as shown in Fig. 2A, underground conduit 1
supplying pressurized fluid at a pressure F from one end side, and
The other end of the underground conduit 1 was opened to the atmosphere, and both objects 4 and sealant 2 were moved.
しかし、地下埋設導管１の漏洩部１ａに対して
シール剤２がかなり短時間で通過するために、第
２図イに示すように、漏洩部１ａの周辺土壌に充
満されるシール剤２の量が余り多くなく、第２図
ロに示すように、後側の物体４が漏洩部１ａを通
過した後、漏洩部１ａのライニングＬが圧力Ｆで
破られる危険性があつた。 However, since the sealant 2 passes through the leakage part 1a of the underground conduit 1 in a fairly short time, the amount of sealant 2 that fills the soil around the leakage part 1a, as shown in FIG. As shown in FIG. 2B, there was a risk that the lining L of the leakage part 1a would be ruptured by the pressure F after the rear object 4 passed through the leakage part 1a.
本発明の目的は、漏洩部において十分量のシー
ル剤が確実に周辺土壌に充填され、物体通過後に
物体圧放のための圧力で漏洩部のライニングが破
れる不都合な事態を確実に防止できるようにする
点にある。 The purpose of the present invention is to ensure that a sufficient amount of sealant is filled into the surrounding soil at the leakage part, and to reliably prevent an inconvenient situation in which the lining of the leakage part is torn due to the pressure for releasing the object after the object has passed. It is in the point of doing.
本発明の特徴手段は、一対の管内移動物体と、
それら両物体の間に充填したシール剤を地下埋設
導管内で移動させるために、加圧流体を前記地下
埋設導管に供給するに際して、前記両物体の前後
における前記地下埋設導管の内圧を近似した高圧
に維持し、前記地下埋設導管の漏洩部から地中へ
の流体流出に起因する前記両物体の前後の圧力差
によつて、前記両物体及びシール剤の移動を行
い、前記漏洩部に前記シール剤が到達すると、前
記両物体の前後の圧力がほぼ等しくなる現象によ
つて、前記両物体及びシール剤を滞留させ、前記
漏洩部の周辺土壌に前記シール剤を充満させるこ
とにあり、その作用効果は次の通りである。 The characteristic means of the present invention includes a pair of intra-tube moving objects;
In order to move the sealant filled between the two objects within the underground conduit, when supplying pressurized fluid to the underground conduit, a high pressure approximating the internal pressure of the underground conduit before and after the two objects. The objects and the sealing agent are moved by the pressure difference between the two objects caused by the fluid flowing underground from the leakage part of the underground conduit, and the sealant is applied to the leakage part. When the agent arrives, the pressures in front and behind the two objects become almost equal, causing both the objects and the sealant to stay, and the soil around the leakage part to be filled with the sealant. The effects are as follows.
つまり、両物体の前後の圧力を近似した高圧に
維持すると、両物体が漏洩部よりも手前に位置す
る間、漏洩部から地中への流体流出によつて、両
物体の後側の圧力を前側の圧力よりも適度に高く
維持でき、この両物体の前後の圧力差で両物体と
シール剤を移動させて、地下埋設導管の内面にラ
イニングを形成する。 In other words, if the pressures in front and behind both objects are maintained at similar high pressures, while both objects are located in front of the leak, the pressure behind the objects will be reduced by the fluid flowing out from the leak into the ground. The pressure can be maintained moderately higher than the pressure on the front side, and the pressure difference between the two objects moves both objects and the sealant to form a lining on the inner surface of the underground conduit.
そして、シール剤が漏洩部から地中に流出し始
めると、両物体の前後の圧力が自然にほぼ等しく
なり、両物体及びシール剤が自然に漏洩部に滞留
するのであり、この漏洩部での滞留は、例えば両
物体及びシール剤の移動のために供給される加圧
流体の供給量が大幅に減少する事態などによつて
知られることができる。 When the sealant begins to flow into the ground from the leak, the pressures in front and behind the two objects naturally become almost equal, and both objects and the sealant naturally stay in the leak. Stagnation can be noticed, for example, by a significant reduction in the amount of pressurized fluid supplied for the movement of both objects and sealant.
したがつて、両物体及びシール剤の滞留時間の
設定等の手段によつて、漏洩部の周辺土壌に十分
量のシール剤を確実に充填できる。 Therefore, by setting the retention time of both objects and the sealant, it is possible to reliably fill the soil around the leakage portion with a sufficient amount of the sealant.
その後、列えば両物体の前側を大気開放する等
の手段で、再び、両物体の後側の圧力を前側の圧
力よりも高くして、両物体とシール剤を移動さ
せ、漏洩部よりも前方のライニングを形成すれば
よく、その時、周辺土壌への十分量のシール剤充
満によつて、漏洩部に対するライニングの破れを
確実に防止できる。 After that, once they are lined up, the front sides of both objects are exposed to the atmosphere, and the pressure on the rear side of both objects is made higher than the pressure on the front side again, and both objects and the sealant are moved to the front side of the leak area. By filling the surrounding soil with a sufficient amount of sealant, it is possible to reliably prevent the lining from breaking at the leakage point.
その結果、たとえ大きな漏洩部が不測に存在し
たとしても、漏洩部でのライニング不良が無い良
好なライニング処理を確実に施せ、漏洩部の有無
や位置が判りにくい地下埋設導管にとつて極めて
有効なライニング方法が得られた。 As a result, even if a large leak exists unexpectedly, good lining treatment can be performed without any lining defects at the leak, making it extremely effective for underground pipes where it is difficult to determine the presence or location of a leak. A lining method was obtained.
次に、第１図により実施例を示す。 Next, an example will be shown with reference to FIG.
第１図イに示すように、地下埋設導管１のライ
ニング対象部分を開放し、一対の管内移動物体４
と、それら両物体４の間に充填した流動性シール
剤２を、地下埋設導管１内にその一端側から入れ
る。そして、地下埋設導管１の両端夫々に公知の
加圧流体供給用設備を接続し、それら設備によつ
て両物体４の前後に等しい圧力F1，F2で加圧流
体を供給する。 As shown in FIG.
Then, the fluid sealant 2 filled between the two objects 4 is introduced into the underground conduit 1 from one end thereof. Known pressurized fluid supply equipment is connected to both ends of the underground conduit 1, and pressurized fluid is supplied to the front and back of both objects 4 at equal pressures F 1 and F 2 by these equipment.
その後、第１図ロに示すように、地下埋設導管
１の前方端部側のバルブを閉じて、圧力F1だ
けを作用させ、地下埋設導管１の漏洩部１ａから
他中への流体流出によつて、両物体４の後側の圧
力を前側の圧力よりも大にし、その圧力差で両物
体４及びシール剤２を移動させ、地下埋設導管１
の内面にライニングＬを形成する。 Thereafter, as shown in Fig. 1B, the valve on the front end side of the underground conduit 1 is closed, and only the pressure F1 is applied to prevent the fluid from flowing out from the leakage part 1a of the underground conduit 1 into other parts. Therefore, the pressure on the rear side of both objects 4 is made higher than the pressure on the front side, and the pressure difference moves both objects 4 and sealant 2, and the underground conduit 1 is moved.
A lining L is formed on the inner surface of the lining L.
そして、第１図ハに示すように、シール剤２が
漏洩部１ａに到達すると、両物体４の前後の流体
が漏洩部１ａから流出しなくなるために、両物体
４の前後の圧力がほぼ等しくなり、自然に両物体
４及びシール剤２が漏洩部１ａに滞留し、シール
剤２が圧力F1で押し出れて漏洩部１ａの周辺土
壌に充満される。 As shown in FIG. 1C, when the sealant 2 reaches the leakage part 1a, the fluid in front and behind both objects 4 no longer flows out from the leakage part 1a, so that the pressures in front and behind both objects 4 are almost equal. Therefore, both the objects 4 and the sealant 2 naturally stay in the leakage part 1a, and the sealant 2 is pushed out by the pressure F1 and fills the soil around the leakage part 1a.
両物体４及びシール剤２の滞留開始のタイミン
グを、圧力F1を付与するための加圧流体の供給
量の大幅を減少などによつて検出し、滞留開始後
設定時間だけ、上述の漏洩部１ａの周辺土壌への
シール剤２充満状態を継続して、漏洩部１ａから
の流体漏洩が無くなるか十分に少なくなるよう
に、十分量のシール剤２を周辺土壌に充満させ
る。 The timing of the start of retention of both objects 4 and sealant 2 is detected by, for example, a significant decrease in the supply amount of pressurized fluid for applying pressure F1 , and the above-mentioned leakage portion is detected for a set time after the start of retention. The state in which the surrounding soil of 1a is filled with sealing agent 2 is continued to fill the surrounding soil with a sufficient amount of sealing agent 2 so that fluid leakage from leakage portion 1a is eliminated or sufficiently reduced.
その後、バルブＶを開いて、両物体４の前方を
大気開放して、再び、両物体４の後方の圧力を前
方の圧力よりも大にし、第１図ニに示すように、
両物体４とシール剤２を移動させ、地下埋設導管
１の処理対象部分全体にライニングＬを形成す
る。 Thereafter, the valve V is opened to expose the front of both objects 4 to the atmosphere, and the pressure at the rear of both objects 4 is again made greater than the pressure at the front, as shown in FIG. 1D.
Both objects 4 and the sealant 2 are moved to form a lining L over the entire portion of the underground conduit 1 to be treated.
尚、前記シール剤２としては、例えば２液混合
型常温硬化エポキシ樹脂で、
粘 度 100〜1000ボアズ
たれ度 ５mmの膜厚でたれない
可使時間 ２時間以上
硬化時間 ほぼ１日
比 重 約1.2
のもの等、公知のライニング用物質を選択利用す
る。 The sealant 2 is, for example, a two-component, room-temperature-curing epoxy resin, which has a viscosity of 100 to 1000 boads, a film thickness of 5 mm and does not sag, a pot life of 2 hours or more, a curing time of about 1 day, and a specific gravity of about 1.2. Selectively utilize known lining materials such as those of .
また、両物体４及びシール剤２の移動のために
地下埋設導管１に供給する加圧流体の圧力F1
は、約0.3〜２Kg／cm2、通常0.5〜1.0Kg／cm2であ
る。 In addition, the pressure F 1 of the pressurized fluid supplied to the underground conduit 1 for the movement of both objects 4 and the sealant 2
is about 0.3 to 2 Kg/cm 2 , usually 0.5 to 1.0 Kg/cm 2 .
また、両物体４及びシール剤２を漏洩部１ａで
滞留させて、周辺土壌にシール剤２を充満する時
間は、２〜５分程度である。 Further, the time required for both the objects 4 and the sealant 2 to remain in the leakage portion 1a and to fill the surrounding soil with the sealant 2 is about 2 to 5 minutes.
第１図イないしニは、本発明の実施例における
施工手順を示す概念図である。第２図イ及びロは
従来例の概念図である。
１……地下埋設導管、１ａ……漏洩部、２……
シール剤、３……周辺土壌、４……管内移動物
体。
FIGS. 1A to 1D are conceptual diagrams showing construction procedures in an embodiment of the present invention. FIGS. 2A and 2B are conceptual diagrams of a conventional example. 1...Underground conduit, 1a...Leakage part, 2...
Sealing agent, 3... Surrounding soil, 4... Object moving inside the pipe.
Claims (1)
間に充填した流動性シール剤２を地下埋設導管１
内に入れ、前記地下埋設導管１内に加圧流体を供
給して、前記両物体４とシール剤２を前記地下埋
設導管１内で移動させ、前記地下埋設導管１の内
面前記シール剤２を塗布する方法であつて、前記
加圧流体の供給に際して、前記両物体４の前後に
おける前記地下埋設導管１の内圧を近似した高圧
に維持し、前記地下埋設導管１の漏洩部１ａから
地中への流体流出に起因する前記両物体４の前後
の圧力差によつて、前記両物体４及びシール剤２
の移動を行い、前記漏洩部１ａに前記シール剤２
が到達すると、前記両物体４の前後の圧力がほぼ
等しくなる現象によつて、前記両物体４及びシー
ル剤２を滞留させ、前記漏洩部１ａの周辺土壌３
に前記シール剤２を充填させる地下埋設導管ライ
ニング方法。1 A pair of pipe-moving objects 4 and a fluid sealant 2 filled between the two objects 4 are applied to an underground conduit 1.
The objects 4 and the sealant 2 are moved within the underground conduit 1 by supplying pressurized fluid into the underground conduit 1, and the inner surface of the underground conduit 1 is coated with the sealant 2. In this method, when supplying the pressurized fluid, the internal pressure of the underground conduit 1 before and after the both objects 4 is maintained at a high pressure that approximates it, and the fluid is supplied underground from the leakage part 1a of the underground conduit 1. Due to the pressure difference between the two objects 4 due to the fluid outflow, both the objects 4 and the sealant 2
, and apply the sealant 2 to the leakage part 1a.
When the pressure reaches the front and rear of the two objects 4, the pressures before and after the two objects 4 become almost equal, causing the two objects 4 and the sealant 2 to stay, and the soil 3 surrounding the leakage portion 1a to
An underground conduit lining method in which the sealant 2 is filled in the underground conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55138184A JPS5763176A (en) | 1980-10-01 | 1980-10-01 | Method for lining of underground buried conduit pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55138184A JPS5763176A (en) | 1980-10-01 | 1980-10-01 | Method for lining of underground buried conduit pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5763176A JPS5763176A (en) | 1982-04-16 |
| JPS6130635B2 true JPS6130635B2 (en) | 1986-07-15 |
Family
ID=15216017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55138184A Granted JPS5763176A (en) | 1980-10-01 | 1980-10-01 | Method for lining of underground buried conduit pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5763176A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59159494A (en) * | 1983-02-25 | 1984-09-10 | 東京瓦斯株式会社 | Method of sealing joint section in pipe |
| JPH0641800B2 (en) * | 1985-09-20 | 1994-06-01 | 大阪瓦斯株式会社 | Resin filling method for soil around leaked area in underground conduit |
-
1980
- 1980-10-01 JP JP55138184A patent/JPS5763176A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5763176A (en) | 1982-04-16 |
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