JPH11131573A - Renewal method of existing sewer pipe - Google Patents
Renewal method of existing sewer pipeInfo
- Publication number
- JPH11131573A JPH11131573A JP9294705A JP29470597A JPH11131573A JP H11131573 A JPH11131573 A JP H11131573A JP 9294705 A JP9294705 A JP 9294705A JP 29470597 A JP29470597 A JP 29470597A JP H11131573 A JPH11131573 A JP H11131573A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- new
- pipes
- old
- superannuated
- 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
- Sewage (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は供用中の下水管路
の更正方法に関し、詳しくは老朽下水管をそのままにし
て管内に新規管を敷設する下水管路の更正方法の改良に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of repairing a sewerage pipe in service, and more particularly to an improvement of a method of repairing a sewerage pipe in which a new pipe is laid in a pipe while leaving an old sewer pipe intact.
【０００２】[0002]
【従来の技術】老朽下水管路を更正する場合、老朽下水
管をそのままにして管内に新規管を敷設する、いわゆる
パイプインパイプ工法が知られている。2. Description of the Related Art In order to rectify an old sewage pipe, a so-called pipe-in-pipe method is known in which a new pipe is laid in a pipe while the old sewage pipe is left as it is.
【０００３】上記工法は老朽下水管を撤去しないので掘
削工事が不要となり、工事の規模が非常に小さくできる
利点を有する。また老朽管路が更正管路のシールドトン
ネルの機能を果たすので更正管路の耐用強度上も好都合
となるなどの利点を有する。[0003] The above-mentioned construction method has an advantage that the excavation work is not required because the old sewer pipe is not removed, and the scale of the construction can be extremely reduced. In addition, since the aged pipeline fulfills the function of a shield tunnel for the rehabilitation pipeline, there is an advantage that the useful strength of the rehabilitation pipeline becomes favorable.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記老
朽管路を更新する場合、新設管の搬入、接続及びグラウ
トによる固定の工程が終了するまで下水流をバイパスさ
せるなどして施工現場から排除する必要があり、そのた
めの付帯工事が大掛かりとなる問題があった。However, when renewing the aging pipe, it is necessary to remove the pipe from the construction site by, for example, bypassing the sewage flow until the process of carrying in the new pipe, connecting it, and fixing it by grout is completed. Therefore, there was a problem that ancillary work for that purpose became large-scale.
【０００５】特に、幹線下水路の場合は、管内の流量も
大きく、バイパス管の敷設もそれだけ大掛かりとなり、
パイプインパイプ工法の利点も半減するといった問題が
あった。[0005] In particular, in the case of a main sewer, the flow rate in the pipe is large, and the laying of the bypass pipe becomes correspondingly large.
There was a problem that the advantage of the pipe-in-pipe method was halved.
【０００６】この発明は上記問題を解消することを目的
としてなされたものであり、幹線下水管路であってもバ
イパス管等を設けることなく、しかも下水を流下させた
まま下水管路を更正する方法を提供することを目的とし
てなされたものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problem, and corrects a sewage pipe without providing a bypass pipe or the like even with a main sewage pipe, and with the sewage flowing down. It is intended to provide a method.
【０００７】[0007]
【課題を解決するための手段】この発明の供用中の下水
管路の更正方法は、供用中の老朽下水管の上半部を単数
の新管が入る長さだけ撤去し、該撤去部分から老朽管内
に前記新管挿入用油圧ジャッキを設置し、次いで老朽管
内に配設される更新管路の勾配に合致するよう老朽管路
の内面頂部と新管外面頂部との間隔を保つスぺーサーを
取り付けた新管を前記撤去部分から前記老朽管内に搬入
し順次前記油圧ジャッキで接続しつつ前記老朽管内に送
り込み、全新管を接続送入後、更正新管路内に該新管路
全長より長い管状浮体を挿通すると共に前記老朽下水管
路の下流側で下水流を抑制して溢水させ、前記浮体の浮
力により新管路を浮上させて老朽管の内面頂部に前記ス
ペーサを介して当接させ、その状態のまま新管の両端外
面と老朽管内面との間をシールしてその間の空間にグラ
ウトを注入硬化させることを特徴とするものである。According to the present invention, a method of repairing an in-service sewage pipe according to the present invention is to remove an upper half portion of an in-service sewage pipe by a length enough to accommodate a single new pipe, and to remove the pipe from the removed portion. The hydraulic jack for inserting the new pipe is installed in the old pipe, and then a spacer is provided to maintain a distance between the inner top of the old pipe and the outer top of the new pipe so as to match the gradient of the renewal pipe installed in the old pipe. The new pipe fitted with the new pipe is carried into the old pipe from the removed portion and sequentially sent into the old pipe while being connected with the hydraulic jack.After all the new pipes are connected and sent, the new pipe length in the rectification new pipe is reduced. A long tubular floating body is inserted, and the sewage flow is suppressed and overflowed on the downstream side of the aging sewage pipe, and the new pipe is floated by the buoyancy of the floating body to abut on the inner surface top of the aging pipe via the spacer. The outer surface of both ends of the new pipe and the inner surface of the deteriorated pipe Seal between is characterized in that to inject hardening grout in the space between them.
【０００８】[0008]
【発明の実施の形態】次にこの発明の実施の形態を説明
する。図１〜図７はこの発明の方法の実施の形態を示す
断面図である。Next, an embodiment of the present invention will be described. 1 to 7 are sectional views showing an embodiment of the method of the present invention.
【０００９】図１において１は供用中の老朽下水管を示
し、内部には下水Ｗが流れている。この老朽下水管１を
更正するに際しまず図１に示すように、老朽管１の上半
部１Ａを単数の新管２が入る長さだけ撤去する。In FIG. 1, reference numeral 1 denotes an aged sewage pipe in service, in which sewage W flows. When the aging pipe 1 is rehabilitated, the upper half 1A of the aging pipe 1 is first removed as long as a single new pipe 2 can be inserted, as shown in FIG.
【００１０】なお、この撤去部分１Ａは後述する油圧ジ
ャッキ３の設置及び駆動時の反力確保のためマンホール
１Ｂに隣り合う老朽管の上半部とすることが望ましい。
次いで、該撤去部分から老朽管１内に前記新管２の挿入
用油圧ジャッキ３を設置する。なお前述のようにマンホ
ール１Ｂに隣り合う老朽管１の上半部を撤去した場合は
図２に示すようにマンホール１Ｂ内壁などに支持させて
設置する。The removed portion 1A is desirably the upper half of an old pipe adjacent to the manhole 1B in order to install a hydraulic jack 3 to be described later and secure a reaction force at the time of driving.
Next, a hydraulic jack 3 for inserting the new pipe 2 is installed in the deteriorated pipe 1 from the removed portion. As described above, when the upper half of the deteriorated pipe 1 adjacent to the manhole 1B is removed, the pipe is supported on the inner wall of the manhole 1B as shown in FIG.
【００１１】なお、図２中３Ａはジャッキ基板、３Ｂは
ジャッキ基板３Ａをマンホール内壁に支える脚部を示
す。次いで、図３に示すように老朽管１内に新管２を送
入する。In FIG. 2, reference numeral 3A denotes a jack substrate, and 3B denotes a leg for supporting the jack substrate 3A on the inner wall of the manhole. Next, as shown in FIG. 3, the new pipe 2 is fed into the deteriorated pipe 1.
【００１２】この新管２は老朽管１内に配設される更新
管路２Ａの勾配Ｓ（図５）に合致するよう老朽管路１の
内面頂部と新管２外面頂部との間隔を保つスぺーサー４
…４が予め取り付けられており、この新管２を前記撤去
部分１Ａから前記老朽管１内に挿入し順次前記油圧ジャ
ッキ３で接続しつつ老朽管１内に送り込む。The new pipe 2 keeps a distance between the inner top of the old pipe 1 and the outer top of the new pipe 2 so as to match the gradient S (FIG. 5) of the renewal pipe 2A disposed in the old pipe 1. Spacer 4
.. 4 are attached in advance. The new pipe 2 is inserted into the deteriorated pipe 1 from the removed portion 1A, and is sequentially fed into the deteriorated pipe 1 while being connected by the hydraulic jack 3.
【００１３】図４に示すように、全新管２…２を接続送
入後、更正管路２Ａ内に該更正管路２Ａ全長より長い管
状浮体５を挿通し膨張させる。次いで、図５に示すよう
に老朽下水管の撤去部分１Ａを塞ぎ、前記下水管路１の
下流側で下水Ｗを邪魔板６等で抑制して老朽下水管１内
に下水を溢水させ、前記浮体５の浮力により新管２…２
を老朽管１の内面頂部に当接するまで浮上させる。As shown in FIG. 4, after connecting and feeding all the new pipes 2, a tubular floating body 5 longer than the entire length of the correction pipe 2A is inserted into the correction pipe 2A and expanded. Next, as shown in FIG. 5, the removed part 1A of the aging sewer pipe is closed, and the sewage W is suppressed by the baffle plate 6 or the like on the downstream side of the sewage pipe 1 to overflow the sewage into the aging sewer pipe 1. New tube 2 ... 2 by buoyancy of floating body 5
Is lifted until it comes into contact with the top of the inner surface of the deteriorated pipe 1.
【００１４】この時、各新管２…２は、上面のスペーサ
４…４により老朽管２内で所定の勾配Ｓに配列される。
そして、その状態のまま新管２の両端外面と老朽管１内
面との間を閉塞用バッグ７等でシールする。At this time, the new pipes 2... 2 are arranged at a predetermined gradient S in the deteriorated pipe 2 by the spacers 4.
Then, in this state, the space between the outer surfaces of both ends of the new tube 2 and the inner surface of the deteriorated tube 1 is sealed with a closing bag 7 or the like.
【００１５】また、下水Ｗは邪魔板６等で抑制されてい
るだけで塞き止められているわけではないため、下水Ｗ
は新管２…２を通じて流れ続ける。次いで図６に示すよ
うに、地表面より開設した注入口８より老朽管１内面と
新管２外面の間の空間に高比重エアーモルタルなどから
なるグラウト９を注入する。Further, since the sewage W is not blocked by the baffle plate 6 and the like, it is not blocked.
Continues to flow through the new tubes 2 ... 2. Next, as shown in FIG. 6, grout 9 made of high specific gravity air mortar or the like is injected into a space between the inner surface of the deteriorated pipe 1 and the outer surface of the new pipe 2 from an injection port 8 opened from the ground surface.
【００１６】注入空間に充満していた下水Ｗは更正管路
２Ａの両端に設けたグラウト充填確認管１０…１０から
排出され、順次グラウトと置換する。グラウト９の充填
完了は、すべての充填確認管１０…１０からのグラウト
漏出により確認し、確認後はすべての充填確認管１０…
１０及び注入口８を封鎖してグラウト９を硬化させる。The sewage W filling the injection space is discharged from grout filling confirmation pipes 10... 10 provided at both ends of the correction pipe 2A, and is sequentially replaced with grout. Completion of filling of the grout 9 is confirmed by grout leakage from all the filling confirmation tubes 10... 10, and after confirmation, all the filling confirmation tubes 10.
The grout 9 is cured by closing the inlet 10 and the inlet 8.
【００１７】グラウト９の硬化後は、図７に示すように
浮体５、邪魔板６を撤去し水位をもとに戻す。以上によ
り下水流を完全にせき止めることなく新管２で管路更正
を完了するのである。After the grout 9 is hardened, the floating body 5 and the baffle plate 6 are removed as shown in FIG. As described above, the pipe renewal is completed with the new pipe 2 without completely blocking the sewage flow.
【００１８】[0018]
【発明の効果】以上説明したようにこの発明の方法によ
れば、老朽下水管をパイプインパイプ工法で更正する場
合、下水流を止めることなく施工が可能となり、施工規
模が非常に小さくなる。As described above, according to the method of the present invention, when the old sewer pipe is rehabilitated by the pipe-in-pipe method, the work can be carried out without stopping the sewage flow, and the construction scale becomes very small.
【００１９】また、送入された新管を所定の勾配に持ち
上げ配置する際、下水中の浮体の浮力を利用するのでジ
ャッキやクレーン等の機器類が全く不要となり、施工も
非常に容易かつ安価に実施可能となる。Further, when the new pipe is lifted and arranged at a predetermined gradient, the buoyancy of the floating body in the sewage is used, so that no equipment such as a jack or a crane is required, and the construction is very easy and inexpensive. Can be implemented.
【図１】この発明の方法の開始工程を示す断面図であ
る。FIG. 1 is a sectional view showing a starting step of the method of the present invention.
【図２】挿入用油圧ジャッキの取り付け状態を示す平面
図である。FIG. 2 is a plan view showing an attached state of an insertion hydraulic jack.
【図３】新管搬入工程を示す断面図である。FIG. 3 is a cross-sectional view showing a new pipe carrying-in step.
【図４】新管配置工程を示す断面図である。FIG. 4 is a cross-sectional view showing a new pipe arrangement step.
【図５】新管勾配付け工程を示す断面図である。FIG. 5 is a sectional view showing a new pipe grading step.
【図６】グラウト注入工程を示す断面図である。FIG. 6 is a sectional view showing a grout injection step.
【図７】完成状態を示す断面図である。FIG. 7 is a sectional view showing a completed state.
１ 供用中の老朽下水管 １Ａ 老朽管の上半部 １Ｂ マンホール ２ 新管 ２Ａ 更新管路 ３ 新管の挿入用油圧ジャッキ ３Ａ ジャッキ基板 ３Ｂ ジャッキ基板をマンホール内壁に支える脚部 ４ スぺーサー ５ 管状浮体 ６ 邪魔板 ７ 閉塞用バッグ ８ 注入口 ９ グラウト １０ グラウト充填確認管 Ｓ 勾配 Ｗ 下水 1 Old sewage pipe in service 1A Upper half of old pipe 1B Manhole 2 New pipe 2A Renewal pipeline 3 Hydraulic jack for insertion of new pipe 3A jack board 3B Leg for supporting jack board on inner wall of manhole 4 Spacer 5 tubular Floating body 6 Baffle plate 7 Closure bag 8 Inlet 9 Grout 10 Grout filling confirmation tube S Slope W Sewage
Claims (1)
が入る長さだけ撤去し、該撤去部分から老朽管内に前記
新管挿入用油圧ジャッキを設置し、次いで老朽管内に配
設される更新管路の勾配に合致するよう老朽管路の内面
頂部と新管外面頂部との間隔を保つスぺーサーを取り付
けた新管を前記撤去部分から前記老朽管内に搬入し順次
前記油圧ジャッキで接続しつつ前記老朽管内に送り込
み、全新管を接続送入後、更正新管路内に該新管路全長
より長い管状浮体を挿通すると共に前記老朽下水管路の
下流側で下水流を抑制して溢水させ、前記浮体の浮力に
より新管路を浮上させて老朽管の内面頂部に前記スペー
サを介して当接させ、その状態のまま新管の両端外面と
老朽管内面との間をシールしてその間の空間にグラウト
を注入硬化させることを特徴とする供用中の下水管路の
更正方法。An upper half of an old sewer pipe in service is removed by a length enough to accommodate a single new pipe, a hydraulic jack for inserting the new pipe is installed in the old pipe from the removed portion, and then the old pipe is inserted into the old pipe. A new pipe fitted with a spacer that keeps a space between the top of the inner pipe of the old pipe and the top of the outer pipe of the new pipe so as to match the gradient of the renewal pipe to be installed is carried into the old pipe from the above-mentioned removed portion, and the above-mentioned After being connected to the old pipe while being connected with a hydraulic jack, all the new pipes are connected and sent, and a tubular floating body longer than the entire length of the new pipe is inserted into the rehabilitation new pipe, and the sewage flow downstream of the old pipe. The new pipe is lifted by the buoyancy of the floating body and brought into contact with the top of the inner surface of the old pipe via the spacer, and in this state, between the outer surfaces at both ends of the new pipe and the inner face of the old pipe. And grout is injected and cured in the space between them. Calibration method sewer pipe in service characterized by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29470597A JP3547298B2 (en) | 1997-10-28 | 1997-10-28 | Rehabilitation of sewer pipes during operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29470597A JP3547298B2 (en) | 1997-10-28 | 1997-10-28 | Rehabilitation of sewer pipes during operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11131573A true JPH11131573A (en) | 1999-05-18 |
| JP3547298B2 JP3547298B2 (en) | 2004-07-28 |
Family
ID=17811242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29470597A Expired - Fee Related JP3547298B2 (en) | 1997-10-28 | 1997-10-28 | Rehabilitation of sewer pipes during operation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3547298B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030093710A (en) * | 2002-06-05 | 2003-12-11 | 미래피앤씨(주) | mending pipe unit for underground pipe and mending method therefor |
| KR20150133996A (en) * | 2014-05-21 | 2015-12-01 | (주)신성건설 | Method for repaering a non-excavation drainpipecapable |
| CN115727195A (en) * | 2022-09-15 | 2023-03-03 | 周蕾 | Municipal large-diameter pipe jacking pipeline slippage repairing method under complex terrain |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53140812A (en) * | 1977-05-13 | 1978-12-08 | Kubota Ltd | Method of laying sewer |
| JPS5785083U (en) * | 1980-11-10 | 1982-05-26 | ||
| JPS5796142A (en) * | 1980-12-02 | 1982-06-15 | Kasei Co C I | Method and apparatus for installing inner pipe in sleeve pipe |
| JPS60188539A (en) * | 1984-03-06 | 1985-09-26 | Kurimoto Iron Works Ltd | Method and apparatus for piping work in existing pipe |
| JPS6483740A (en) * | 1987-09-28 | 1989-03-29 | Sekisui Chemical Co Ltd | Method of fixing inserting pipe to sheath pipe |
-
1997
- 1997-10-28 JP JP29470597A patent/JP3547298B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53140812A (en) * | 1977-05-13 | 1978-12-08 | Kubota Ltd | Method of laying sewer |
| JPS5785083U (en) * | 1980-11-10 | 1982-05-26 | ||
| JPS5796142A (en) * | 1980-12-02 | 1982-06-15 | Kasei Co C I | Method and apparatus for installing inner pipe in sleeve pipe |
| JPS60188539A (en) * | 1984-03-06 | 1985-09-26 | Kurimoto Iron Works Ltd | Method and apparatus for piping work in existing pipe |
| JPS6483740A (en) * | 1987-09-28 | 1989-03-29 | Sekisui Chemical Co Ltd | Method of fixing inserting pipe to sheath pipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030093710A (en) * | 2002-06-05 | 2003-12-11 | 미래피앤씨(주) | mending pipe unit for underground pipe and mending method therefor |
| KR20150133996A (en) * | 2014-05-21 | 2015-12-01 | (주)신성건설 | Method for repaering a non-excavation drainpipecapable |
| CN115727195A (en) * | 2022-09-15 | 2023-03-03 | 周蕾 | Municipal large-diameter pipe jacking pipeline slippage repairing method under complex terrain |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3547298B2 (en) | 2004-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4329083A (en) | Methods of laying underground conduits | |
| US10968594B1 (en) | Manhole rehabilitation system | |
| CN107763362A (en) | Interior piston ring method pipe joint method for repairing and constructing | |
| JP3493218B2 (en) | Rehabilitation method of existing sewer and rehabilitation pipe supporting material used for this rehabilitation method | |
| JP5179957B2 (en) | Pipeline rehabilitation method | |
| JP3547298B2 (en) | Rehabilitation of sewer pipes during operation | |
| KR101188724B1 (en) | Reverse tank apparatus and method for repairing the sewerage | |
| KR101914686B1 (en) | Repairing and reinforcing earthquake-resistant tube for pipeline and repairing and reinforcing method for pipe using the same | |
| US11173652B2 (en) | Systems and methods for rehabilitating, repairing, and replacing manholes and connected sewer lines | |
| KR100494356B1 (en) | Water Veer Engineering Method of Tubing Using Prefabricated Temporary Dam Watertight Material | |
| JP2006161329A (en) | Reclamation method for manhole | |
| KR200211157Y1 (en) | Underground Pipe Repair Device | |
| KR200342265Y1 (en) | Hume concrete pipe connection structure | |
| KR20060109377A (en) | Construction method of drain pipe | |
| JP2016067339A (en) | Water intake system | |
| JPS5914667B2 (en) | How to lay pipes | |
| Arjun et al. | A Review of Rehabilitation Methods for Aging Pipe Culverts by Spray Applied Pipe Lining, Grouting, and Sliplining | |
| JP2003301690A (en) | Construction method and device for laying rehabilitation pipe in existing sewage pipe | |
| CN220847627U (en) | Pile casing device | |
| CN213979219U (en) | Pipe fitting structure for drainage system | |
| CN218911599U (en) | Water supply pipe protection structure | |
| JP3615336B2 (en) | Construction method of pipes in caves | |
| JP3889301B2 (en) | Pipe laying device, laying system and laying method | |
| Ouellette et al. | Rehabilitation of sanitary sewer pipelines | |
| JP2537383B2 (en) | Inner surface lining method for existing pipe with branch pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040301 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040316 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040413 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080423 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090423 Year of fee payment: 5 |
|
| LAPS | Cancellation because of no payment of annual fees |