JPS62288796A - Method of repair construction of existing buried pipe - Google Patents
Method of repair construction of existing buried pipeInfo
- Publication number
- JPS62288796A JPS62288796A JP61130486A JP13048686A JPS62288796A JP S62288796 A JPS62288796 A JP S62288796A JP 61130486 A JP61130486 A JP 61130486A JP 13048686 A JP13048686 A JP 13048686A JP S62288796 A JPS62288796 A JP S62288796A
- Authority
- JP
- Japan
- Prior art keywords
- buried pipe
- ground
- pipe
- repair
- buried
- 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
- 238000000034 method Methods 0.000 title claims description 6
- 238000010276 construction Methods 0.000 title description 11
- 239000002689 soil Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 description 9
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Pipe Accessories (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 発明の詳細な説明 に梁上の利用分野 本発明は既設埋設管の補修工法に関する。[Detailed description of the invention] Detailed description of the invention Areas of use on beams The present invention relates to a repair method for existing buried pipes.
従来、既設埋設管の補修工法として、補修対象の埋設管
の外側に全長に亘り空隙を形成した後、この空隙内に補
修材料を注入充填する補修工法が提案されている（例え
ば特開昭５５〜３３９６６号公報参照）。Conventionally, as a repair method for existing buried pipes, a repair method has been proposed in which a gap is formed along the entire length outside the buried pipe to be repaired, and then a repair material is injected and filled into this gap (for example, Japanese Patent Application Laid-Open No. 1983 -33966).
、−どろがトに１．従来工法は次の通りの問題点づ；あ
つた。,-Doroga Toni 1. The conventional construction method had the following problems.
■ 地盤が崩騙し易く、トンネル状空隙を保持し難い。■ The ground is prone to collapse and it is difficult to maintain tunnel-like voids.
特に軟弱地盤、砂し十層及び地下水位の高い場合などに
崩壊を起し易い。It is particularly prone to collapse in cases of soft ground, sandy soil, and high groundwater levels.
■ 地盤が崩壊した場合、地表面陥没原因となる。■ If the ground collapses, it will cause the ground surface to cave in.
■ 崩壊や地下湧水などにより、トンネル状空隙への補
修材料の注入充填に支障を生ずることがある。■ Collapses, underground springs, etc. may impede the injection and filling of repair materials into tunnel-like voids.
■ 補修対象の埋設管の長さによっては、トンネル状空
隙内で埋設管にたわみを生じ、充填補修材料の傷内原因
となる。■ Depending on the length of the buried pipe to be repaired, the buried pipe may bend inside the tunnel-like void, causing damage to the filling repair material.
■ トンネル状空隙内での埋設管のたわみのために、ロ
ングスパンの施工には不向きである。■ It is unsuitable for long-span construction due to the bending of the buried pipe within the tunnel-like void.
本発明は上記従来の問題点を一掃することを目的として
なされたものである。The present invention has been made with the aim of eliminating the above-mentioned conventional problems.
本発明は、補修対象の既設埋設管の外周部の地盤を一端
から他端に向けて機械的に撹乱しつつ、この撹乱地盤内
に地盤改良剤を噴入充填して行くことを特徴とする既設
埋設管の補修工法に係る。The present invention is characterized by mechanically disturbing the ground around the outer periphery of an existing buried pipe to be repaired from one end to the other, and injecting and filling the disturbed ground with a soil improvement agent. Pertains to repair methods for existing buried pipes.
以下に本発明の一＊施例を添附図面にもとづき説明する
と次の通シである。A first embodiment of the present invention will be described below based on the accompanying drawings.
第１〜３図に、本発明工法の実施に用いられる補修装置
（４）の−例が示されている。An example of a repair device (4) used in implementing the construction method of the present invention is shown in FIGS. 1 to 3.
補修装置（２）は埋設管（ａ）の外周部の地盤＜ｂ＞を
機械的に撹乱するための地盤撹乱用部（１）と、該撹乱
用部（１）を埋設管（ａ）に沿って移動するだめの移動
用部（２）を備えている。The repair device (2) includes a ground disturbance part (1) for mechanically disturbing the ground <b> on the outer periphery of the buried pipe (a), and a ground disturbance part (1) that is connected to the buried pipe (a). It is provided with a moving part (2) for moving along.
地盤撹乱用部（１）は、埋設管（ａ）に管軸方向に移動
自在に外嵌される筒状の本体部（６）と、該本体部ｑＩ
）の前端に管円周方向に回転自在に備えられていて、中
央部の筒状部（１２１）に於て埋設管（ａ）にフリーに
外嵌される〇−タリカッタ＠と、〇−タリカツタ亜を回
転するために上記本体部Ｑｌ）に搭載された例えば油圧
式の駆動℃−タ（１３を具備し、駆動モータ四の回転が
、℃−タ回転軸上の小径歯車Ｑ■及び該小径歯車０４と
噛合うように０−タリ力ツタ（６）の筒状部（１２１）
に設けられた大径歯車（ト）を介して４当該カツタ（６
）に伝達されるようになっている。（Ｉｌ＋）は本体部
０１）に設けられた歯車保護カバーである。The ground disturbance part (1) includes a cylindrical main body part (6) that is fitted onto the buried pipe (a) so as to be movable in the pipe axis direction, and a main body part qI.
) is rotatably provided at the front end of the pipe in the circumferential direction of the pipe, and is freely fitted onto the buried pipe (a) in the central cylindrical part (121); For example, a hydraulic drive motor (13) is mounted on the main body part Ql) to rotate the motor, and the rotation of the drive motor 4 is caused by the small diameter gear Q and the small diameter gear on the motor rotation shaft. The cylindrical part (121) of the 0-tally force vine (6) meshes with the gear 04.
4 through the large diameter gear (G) provided in the cutter (6).
). (Il+) is a gear protection cover provided on the main body part 01).
駆動を一タα１及び小径歯車０４は、複数組を備えるよ
うにしてもよい。A plurality of sets of the driving gear α1 and the small diameter gear 04 may be provided.
移動用部（２）として、図には２つの例が示されている
。第１図に示された移動用部（２）は、撹乱用部（１）
の本体部αυに支持された前チャックシリンＪＧ４υと
、埋設管（ｊ）に管軸方向に移動自在に外嵌された筒状
フレーム（ハ）に支持された後チャックシリ−Ｊ’Ｊ（
ホ）と、本体部（６）と筒状フレーム■間にピン（至）
、（ホ）結合された移動用シリンタ翰から構成され、前
後のシリンダ（ハ）、（ホ）による埋設管（−）へのチ
ャックを交互に繰返しながら、中間のシリンダ（至）を
伸縮することによシ、撹乱用部（１）を埋設管（−）に
沿って移動し得るようになっている。図ではシリンダ（
財）、翰及び（至）は、管円周方向に等間隔を隔てて複
数組が備えられている。Two examples are shown in the figure as the moving part (2). The moving part (2) shown in FIG. 1 is the disturbance part (1).
The front chuck cylinder JG4υ is supported by the main body part αυ of the body part αυ, and the rear chuck cylinder J'J(
e) and the pin (to) between the main body (6) and the cylindrical frame ■
, (e) It is composed of connected moving cylinders, and while the front and rear cylinders (c) and (e) alternately chuck the buried pipe (-), the middle cylinder (to) expands and contracts. Additionally, the agitating section (1) can be moved along the buried pipe (-). In the figure, the cylinder (
A plurality of sets of the pipes are provided at equal intervals in the circumferential direction of the tube.
また第３図に示された移動用部（２）は、埋設管（ａ）
に外嵌された状態で鎖管（４）に沿って押込まれるガイ
ドバイづ（１）と、該パイプ（１）を地盤内へ圧入する
ための油圧ジセッ＋（ロ）から構成され、ガイドバイづ
（７）の先端部の内１ｕ部に、撹乱用部（１）の本体部
＜１１）が保護カバー（１１１）部に於て固設されてい
る。ガイドバイづ翰を順次溶接等により継ぎ足しながら
、油圧シャツ辛いの作動をして地盤内に押込んで行くこ
とによシ、撹乱用部（１）を埋設管（ａ）に沿って移動
し得るようになっている。In addition, the moving part (2) shown in Fig. 3 is a buried pipe (a).
It consists of a guide bye (1) that is pushed along the chain pipe (4) while being fitted externally on the pipe, and a hydraulic jack (b) for press-fitting the pipe (1) into the ground. The main body part <11) of the agitation part (1) is fixedly installed in the protective cover (111) part at the inner 1u part of the tip part of the bye part (7). By sequentially adding guide bytes by welding, etc., and pushing them into the ground by operating a hydraulic pump, the disturbance part (1) can be moved along the buried pipe (a). It has become.
その地図中、（３）は地盤改良材の供給用導管で、該導
管（３）の先端は、スイベル（図示せず）を介して、撹
乱用部（１）のロータリカッタ饅の背面に接続され、そ
の噴孔（１２２） （第２図参照）に地盤改良材を供給
し得るようになっている。地盤改良材としては、例えば
セメントミルクが用いられる。面図では、駆動℃−夕（
至）、シリンダＣＩ！Ｕ、＠及び−を遠隔操作するため
の油圧系統は省略されている。In the map, (3) is a conduit for supplying soil improvement material, and the tip of this conduit (3) is connected to the back of the rotary cutter of the stirring section (1) via a swivel (not shown). The injection hole (122) (see Figure 2) can be supplied with ground improvement material. For example, cement milk is used as the ground improvement material. In the plane view, the driving ℃−t(
), cylinder CI! A hydraulic system for remotely controlling U, @, and - is omitted.
本発明工法の実施に際しては、第１図及び第３図に示さ
れるように、補修装置囚が埋設管（ａ）に外嵌状態とな
るように設置され、更に埋設管（ａ）外周部の地盤（ｂ
）の始端側がシールプレート（４）により閉じられる。When carrying out the construction method of the present invention, as shown in Figures 1 and 3, the repair device is installed so as to fit over the buried pipe (a), and the Ground (b
) is closed by a seal plate (4).
シールづレート（４）には導管（３）の挿通部０１）と
、セメントミルクなどの地盤改良材注入による改良地盤
のボリュームアップ分を排出するための排出口（９）が
設けられている。更に第３図の実施例のものでは、ガイ
ドバイ′：５翰の挿通部韓全が設けられている。The seal plate (4) is provided with an insertion portion 01) for the conduit (3) and an outlet (9) for discharging the increased volume of the improved soil by injecting a soil improvement material such as cement milk. Further, in the embodiment shown in FIG. 3, a guide by': 5 wire insertion portions are provided.
第１図及び第３図に示す状態で、駆動で一夕α４の作動
をして〇−タリカツタ（６）を回転し、埋設管（ａ）外
周部の地盤＜ｂ＞を機械的に撹乱すると共に、この撹乱
地盤内に導管（３）及び噴孔（１２２） （第２図参照
）を通じて地盤改良材を噴入充填しつつ、移動用部（２
）の作動をして補修装置囚を埋設管（ａ）に沿つて移動
して行くことにより、埋Ｖ管（ａ）外周部の地盤（６）
を連続的に改良して行くことができる。このようにして
埋設管（ａ）外周部の地盤（Ａ）を改良することにより
、埋設管（ａ）補修の目的を達成できる。In the conditions shown in Figures 1 and 3, the drive operates α4 overnight to rotate the 〇-Tarikata (6) and mechanically disturb the ground <b> around the outer periphery of the buried pipe (a). At the same time, while injecting and filling the ground improvement material into the disturbed ground through the conduit (3) and injection hole (122) (see Figure 2), the moving part (2
) and move the repair equipment along the buried pipe (a), the ground (6) on the outer periphery of the buried V pipe (a) is moved.
can be continuously improved. By improving the ground (A) around the outer periphery of the buried pipe (a) in this way, the purpose of repairing the buried pipe (a) can be achieved.
尚第３図に示された実施例に於ては、ガイドパイプ（７
）は改良地盤内に埋殺しするようにしてもよい。In the embodiment shown in FIG. 3, the guide pipe (7
) may be buried in the improved ground.
本発明工法に於て、補修装置を割型に構成して、これを
埋設管（ａ）に外嵌するようにすれば、埋設管を切断す
ることなしに実施できる。In the construction method of the present invention, if the repair device is formed into a split mold and is fitted onto the buried pipe (a), the repair can be carried out without cutting the buried pipe.
本発明工法によれば、埋設管（−）の外周部の地盤（ｂ
）を機械的に撹乱しつつこれに改良材を噴入充填して改
良して行く方式であるので、埋設管（Ｉ２）の外周部に
−たん空隙を形成する従来工法にみられるような地盤崩
壊ひいては地表面陥没などの事故は一切発生しないと共
に、空隙を形成しないので埋設管（ａ）にたわみを生ず
る虞れもなく、ロングスパンの施工が可能となる。According to the construction method of the present invention, the ground (b) around the outer periphery of the buried pipe (-)
) is improved by mechanically disturbing it and injecting and filling it with improvement material, so it is difficult to improve the soil as seen in the conventional construction method, which creates a gap around the outer periphery of the buried pipe (I2). Accidents such as collapse or ground surface depression will not occur at all, and since no voids are formed, there is no risk of bending the buried pipe (a), and long-span construction is possible.
更に埋設管（ａ）の外周部には、全長に亘って均一厚み
の地盤改良部が形成されるので、信頼性の高い管補修が
可能となる。Furthermore, since a ground improvement portion having a uniform thickness is formed over the entire length of the buried pipe (a), highly reliable pipe repair is possible.
第１図は本発明工法の一実施状況を示す縦断面図、第２
図は第１図の右側面図、第３図は本発明工法の他の実施
状況を示す縦断面図である。
図に於て、囚は補修装置、（１）は地盤撹乱州都、（２
）は移動用部、（３）は導管、（４）はシールプレート
である。
（以 上）
代理人 弁理士 三 枝 英 二 ＜ ：” ：
、 、；。Figure 1 is a vertical cross-sectional view showing the implementation status of the construction method of the present invention, Figure 2
The figure is a right side view of FIG. 1, and FIG. 3 is a longitudinal sectional view showing another implementation state of the construction method of the present invention. In the figure, prisoner is the repair equipment, (1) is the ground disturbance state capital, (2
) is a moving part, (3) is a conduit, and (4) is a seal plate. (The above) Agent: Eiji Saegusa, Patent Attorney <:”:
, , ;.
Claims (1)
他端に向けて機械的に撹乱しつつ、この撹乱地盤内に地
盤改良剤を噴入充填して行くことを特徴とする既設埋設
管の補修工法。(1) An existing underground pipe characterized by mechanically disturbing the ground around the outer periphery of the existing buried pipe to be repaired from one end to the other, and injecting and filling the disturbed ground with a soil improvement agent. Repair method for buried pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61130486A JPS62288796A (en) | 1986-06-04 | 1986-06-04 | Method of repair construction of existing buried pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61130486A JPS62288796A (en) | 1986-06-04 | 1986-06-04 | Method of repair construction of existing buried pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62288796A true JPS62288796A (en) | 1987-12-15 |
Family
ID=15035407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61130486A Pending JPS62288796A (en) | 1986-06-04 | 1986-06-04 | Method of repair construction of existing buried pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62288796A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS577247A (en) * | 1980-06-17 | 1982-01-14 | Mitsui Toatsu Chem Inc | Jet layer type granulator |
| JPS587873A (en) * | 1981-07-07 | 1983-01-17 | Matsushita Electric Ind Co Ltd | Diode and manufacture thereof |
-
1986
- 1986-06-04 JP JP61130486A patent/JPS62288796A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS577247A (en) * | 1980-06-17 | 1982-01-14 | Mitsui Toatsu Chem Inc | Jet layer type granulator |
| JPS587873A (en) * | 1981-07-07 | 1983-01-17 | Matsushita Electric Ind Co Ltd | Diode and manufacture thereof |
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